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-rw-r--r--arch/mips/txx9/generic/7segled.c123
-rw-r--r--arch/mips/txx9/generic/Makefile14
-rw-r--r--arch/mips/txx9/generic/irq_tx3927.c25
-rw-r--r--arch/mips/txx9/generic/irq_tx4927.c49
-rw-r--r--arch/mips/txx9/generic/irq_tx4938.c37
-rw-r--r--arch/mips/txx9/generic/irq_tx4939.c216
-rw-r--r--arch/mips/txx9/generic/mem_tx4927.c75
-rw-r--r--arch/mips/txx9/generic/pci.c432
-rw-r--r--arch/mips/txx9/generic/setup.c970
-rw-r--r--arch/mips/txx9/generic/setup_tx3927.c136
-rw-r--r--arch/mips/txx9/generic/setup_tx4927.c337
-rw-r--r--arch/mips/txx9/generic/setup_tx4938.c485
-rw-r--r--arch/mips/txx9/generic/setup_tx4939.c585
-rw-r--r--arch/mips/txx9/generic/smsc_fdc37m81x.c169
-rw-r--r--arch/mips/txx9/generic/spi_eeprom.c104
15 files changed, 3757 insertions, 0 deletions
diff --git a/arch/mips/txx9/generic/7segled.c b/arch/mips/txx9/generic/7segled.c
new file mode 100644
index 000000000..2203c2548
--- /dev/null
+++ b/arch/mips/txx9/generic/7segled.c
@@ -0,0 +1,123 @@
+/*
+ * 7 Segment LED routines
+ * Based on RBTX49xx patch from CELF patch archive.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * (C) Copyright TOSHIBA CORPORATION 2005-2007
+ * All Rights Reserved.
+ */
+#include <linux/device.h>
+#include <linux/slab.h>
+#include <linux/map_to_7segment.h>
+#include <asm/txx9/generic.h>
+
+static unsigned int tx_7segled_num;
+static void (*tx_7segled_putc)(unsigned int pos, unsigned char val);
+
+void __init txx9_7segled_init(unsigned int num,
+ void (*putc)(unsigned int pos, unsigned char val))
+{
+ tx_7segled_num = num;
+ tx_7segled_putc = putc;
+}
+
+static SEG7_CONVERSION_MAP(txx9_seg7map, MAP_ASCII7SEG_ALPHANUM_LC);
+
+int txx9_7segled_putc(unsigned int pos, char c)
+{
+ if (pos >= tx_7segled_num)
+ return -EINVAL;
+ c = map_to_seg7(&txx9_seg7map, c);
+ if (c < 0)
+ return c;
+ tx_7segled_putc(pos, c);
+ return 0;
+}
+
+static ssize_t ascii_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ unsigned int ch = dev->id;
+ txx9_7segled_putc(ch, buf[0]);
+ return size;
+}
+
+static ssize_t raw_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ unsigned int ch = dev->id;
+ tx_7segled_putc(ch, buf[0]);
+ return size;
+}
+
+static DEVICE_ATTR_WO(ascii);
+static DEVICE_ATTR_WO(raw);
+
+static ssize_t map_seg7_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ memcpy(buf, &txx9_seg7map, sizeof(txx9_seg7map));
+ return sizeof(txx9_seg7map);
+}
+
+static ssize_t map_seg7_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ if (size != sizeof(txx9_seg7map))
+ return -EINVAL;
+ memcpy(&txx9_seg7map, buf, size);
+ return size;
+}
+
+static DEVICE_ATTR(map_seg7, 0600, map_seg7_show, map_seg7_store);
+
+static struct bus_type tx_7segled_subsys = {
+ .name = "7segled",
+ .dev_name = "7segled",
+};
+
+static void tx_7segled_release(struct device *dev)
+{
+ kfree(dev);
+}
+
+static int __init tx_7segled_init_sysfs(void)
+{
+ int error, i;
+ if (!tx_7segled_num)
+ return -ENODEV;
+ error = subsys_system_register(&tx_7segled_subsys, NULL);
+ if (error)
+ return error;
+ error = device_create_file(tx_7segled_subsys.dev_root, &dev_attr_map_seg7);
+ if (error)
+ return error;
+ for (i = 0; i < tx_7segled_num; i++) {
+ struct device *dev;
+ dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+ if (!dev) {
+ error = -ENODEV;
+ break;
+ }
+ dev->id = i;
+ dev->bus = &tx_7segled_subsys;
+ dev->release = &tx_7segled_release;
+ error = device_register(dev);
+ if (error) {
+ put_device(dev);
+ return error;
+ }
+ device_create_file(dev, &dev_attr_ascii);
+ device_create_file(dev, &dev_attr_raw);
+ }
+ return error;
+}
+
+device_initcall(tx_7segled_init_sysfs);
diff --git a/arch/mips/txx9/generic/Makefile b/arch/mips/txx9/generic/Makefile
new file mode 100644
index 000000000..6d00580fc
--- /dev/null
+++ b/arch/mips/txx9/generic/Makefile
@@ -0,0 +1,14 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Makefile for common code for TXx9 based systems
+#
+
+obj-y += setup.o
+obj-$(CONFIG_PCI) += pci.o
+obj-$(CONFIG_SOC_TX3927) += setup_tx3927.o irq_tx3927.o
+obj-$(CONFIG_SOC_TX4927) += mem_tx4927.o setup_tx4927.o irq_tx4927.o
+obj-$(CONFIG_SOC_TX4938) += mem_tx4927.o setup_tx4938.o irq_tx4938.o
+obj-$(CONFIG_SOC_TX4939) += setup_tx4939.o irq_tx4939.o
+obj-$(CONFIG_TOSHIBA_FPCIB0) += smsc_fdc37m81x.o
+obj-$(CONFIG_SPI) += spi_eeprom.o
+obj-$(CONFIG_TXX9_7SEGLED) += 7segled.o
diff --git a/arch/mips/txx9/generic/irq_tx3927.c b/arch/mips/txx9/generic/irq_tx3927.c
new file mode 100644
index 000000000..c683f593e
--- /dev/null
+++ b/arch/mips/txx9/generic/irq_tx3927.c
@@ -0,0 +1,25 @@
+/*
+ * Common tx3927 irq handler
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright 2001 MontaVista Software Inc.
+ * Copyright (C) 2000-2001 Toshiba Corporation
+ */
+#include <linux/init.h>
+#include <asm/txx9irq.h>
+#include <asm/txx9/tx3927.h>
+
+void __init tx3927_irq_init(void)
+{
+ int i;
+
+ txx9_irq_init(TX3927_IRC_REG);
+ /* raise priority for timers, sio */
+ for (i = 0; i < TX3927_NR_TMR; i++)
+ txx9_irq_set_pri(TX3927_IR_TMR(i), 6);
+ for (i = 0; i < TX3927_NR_SIO; i++)
+ txx9_irq_set_pri(TX3927_IR_SIO(i), 7);
+}
diff --git a/arch/mips/txx9/generic/irq_tx4927.c b/arch/mips/txx9/generic/irq_tx4927.c
new file mode 100644
index 000000000..ed8e702d4
--- /dev/null
+++ b/arch/mips/txx9/generic/irq_tx4927.c
@@ -0,0 +1,49 @@
+/*
+ * Common tx4927 irq handler
+ *
+ * Author: MontaVista Software, Inc.
+ * source@mvista.com
+ *
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+ * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <asm/irq_cpu.h>
+#include <asm/txx9/tx4927.h>
+
+void __init tx4927_irq_init(void)
+{
+ int i;
+
+ mips_cpu_irq_init();
+ txx9_irq_init(TX4927_IRC_REG & 0xfffffffffULL);
+ irq_set_chained_handler(MIPS_CPU_IRQ_BASE + TX4927_IRC_INT,
+ handle_simple_irq);
+ /* raise priority for errors, timers, SIO */
+ txx9_irq_set_pri(TX4927_IR_ECCERR, 7);
+ txx9_irq_set_pri(TX4927_IR_WTOERR, 7);
+ txx9_irq_set_pri(TX4927_IR_PCIERR, 7);
+ txx9_irq_set_pri(TX4927_IR_PCIPME, 7);
+ for (i = 0; i < TX4927_NUM_IR_TMR; i++)
+ txx9_irq_set_pri(TX4927_IR_TMR(i), 6);
+ for (i = 0; i < TX4927_NUM_IR_SIO; i++)
+ txx9_irq_set_pri(TX4927_IR_SIO(i), 5);
+}
diff --git a/arch/mips/txx9/generic/irq_tx4938.c b/arch/mips/txx9/generic/irq_tx4938.c
new file mode 100644
index 000000000..aace85653
--- /dev/null
+++ b/arch/mips/txx9/generic/irq_tx4938.c
@@ -0,0 +1,37 @@
+/*
+ * linux/arch/mips/tx4938/common/irq.c
+ *
+ * Common tx4938 irq handler
+ * Copyright (C) 2000-2001 Toshiba Corporation
+ *
+ * 2003-2005 (c) MontaVista Software, Inc. This file is licensed under the
+ * terms of the GNU General Public License version 2. This program is
+ * licensed "as is" without any warranty of any kind, whether express
+ * or implied.
+ *
+ * Support for TX4938 in 2.6 - Manish Lachwani (mlachwani@mvista.com)
+ */
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <asm/irq_cpu.h>
+#include <asm/txx9/tx4938.h>
+
+void __init tx4938_irq_init(void)
+{
+ int i;
+
+ mips_cpu_irq_init();
+ txx9_irq_init(TX4938_IRC_REG & 0xfffffffffULL);
+ irq_set_chained_handler(MIPS_CPU_IRQ_BASE + TX4938_IRC_INT,
+ handle_simple_irq);
+ /* raise priority for errors, timers, SIO */
+ txx9_irq_set_pri(TX4938_IR_ECCERR, 7);
+ txx9_irq_set_pri(TX4938_IR_WTOERR, 7);
+ txx9_irq_set_pri(TX4938_IR_PCIERR, 7);
+ txx9_irq_set_pri(TX4938_IR_PCIPME, 7);
+ for (i = 0; i < TX4938_NUM_IR_TMR; i++)
+ txx9_irq_set_pri(TX4938_IR_TMR(i), 6);
+ for (i = 0; i < TX4938_NUM_IR_SIO; i++)
+ txx9_irq_set_pri(TX4938_IR_SIO(i), 5);
+}
diff --git a/arch/mips/txx9/generic/irq_tx4939.c b/arch/mips/txx9/generic/irq_tx4939.c
new file mode 100644
index 000000000..0d7267e81
--- /dev/null
+++ b/arch/mips/txx9/generic/irq_tx4939.c
@@ -0,0 +1,216 @@
+/*
+ * TX4939 irq routines
+ * Based on linux/arch/mips/kernel/irq_txx9.c,
+ * and RBTX49xx patch from CELF patch archive.
+ *
+ * Copyright 2001, 2003-2005 MontaVista Software Inc.
+ * Author: MontaVista Software, Inc.
+ * ahennessy@mvista.com
+ * source@mvista.com
+ * Copyright (C) 2000-2001,2005-2007 Toshiba Corporation
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+/*
+ * TX4939 defines 64 IRQs.
+ * Similer to irq_txx9.c but different register layouts.
+ */
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/types.h>
+#include <asm/irq_cpu.h>
+#include <asm/txx9irq.h>
+#include <asm/txx9/tx4939.h>
+
+/* IRCER : Int. Control Enable */
+#define TXx9_IRCER_ICE 0x00000001
+
+/* IRCR : Int. Control */
+#define TXx9_IRCR_LOW 0x00000000
+#define TXx9_IRCR_HIGH 0x00000001
+#define TXx9_IRCR_DOWN 0x00000002
+#define TXx9_IRCR_UP 0x00000003
+#define TXx9_IRCR_EDGE(cr) ((cr) & 0x00000002)
+
+/* IRSCR : Int. Status Control */
+#define TXx9_IRSCR_EIClrE 0x00000100
+#define TXx9_IRSCR_EIClr_MASK 0x0000000f
+
+/* IRCSR : Int. Current Status */
+#define TXx9_IRCSR_IF 0x00010000
+
+#define irc_dlevel 0
+#define irc_elevel 1
+
+static struct {
+ unsigned char level;
+ unsigned char mode;
+} tx4939irq[TX4939_NUM_IR] __read_mostly;
+
+static void tx4939_irq_unmask(struct irq_data *d)
+{
+ unsigned int irq_nr = d->irq - TXX9_IRQ_BASE;
+ u32 __iomem *lvlp;
+ int ofs;
+ if (irq_nr < 32) {
+ irq_nr--;
+ lvlp = &tx4939_ircptr->lvl[(irq_nr % 16) / 2].r;
+ } else {
+ irq_nr -= 32;
+ lvlp = &tx4939_ircptr->lvl[8 + (irq_nr % 16) / 2].r;
+ }
+ ofs = (irq_nr & 16) + (irq_nr & 1) * 8;
+ __raw_writel((__raw_readl(lvlp) & ~(0xff << ofs))
+ | (tx4939irq[irq_nr].level << ofs),
+ lvlp);
+}
+
+static inline void tx4939_irq_mask(struct irq_data *d)
+{
+ unsigned int irq_nr = d->irq - TXX9_IRQ_BASE;
+ u32 __iomem *lvlp;
+ int ofs;
+ if (irq_nr < 32) {
+ irq_nr--;
+ lvlp = &tx4939_ircptr->lvl[(irq_nr % 16) / 2].r;
+ } else {
+ irq_nr -= 32;
+ lvlp = &tx4939_ircptr->lvl[8 + (irq_nr % 16) / 2].r;
+ }
+ ofs = (irq_nr & 16) + (irq_nr & 1) * 8;
+ __raw_writel((__raw_readl(lvlp) & ~(0xff << ofs))
+ | (irc_dlevel << ofs),
+ lvlp);
+ mmiowb();
+}
+
+static void tx4939_irq_mask_ack(struct irq_data *d)
+{
+ unsigned int irq_nr = d->irq - TXX9_IRQ_BASE;
+
+ tx4939_irq_mask(d);
+ if (TXx9_IRCR_EDGE(tx4939irq[irq_nr].mode)) {
+ irq_nr--;
+ /* clear edge detection */
+ __raw_writel((TXx9_IRSCR_EIClrE | (irq_nr & 0xf))
+ << (irq_nr & 0x10),
+ &tx4939_ircptr->edc.r);
+ }
+}
+
+static int tx4939_irq_set_type(struct irq_data *d, unsigned int flow_type)
+{
+ unsigned int irq_nr = d->irq - TXX9_IRQ_BASE;
+ u32 cr;
+ u32 __iomem *crp;
+ int ofs;
+ int mode;
+
+ if (flow_type & IRQF_TRIGGER_PROBE)
+ return 0;
+ switch (flow_type & IRQF_TRIGGER_MASK) {
+ case IRQF_TRIGGER_RISING:
+ mode = TXx9_IRCR_UP;
+ break;
+ case IRQF_TRIGGER_FALLING:
+ mode = TXx9_IRCR_DOWN;
+ break;
+ case IRQF_TRIGGER_HIGH:
+ mode = TXx9_IRCR_HIGH;
+ break;
+ case IRQF_TRIGGER_LOW:
+ mode = TXx9_IRCR_LOW;
+ break;
+ default:
+ return -EINVAL;
+ }
+ if (irq_nr < 32) {
+ irq_nr--;
+ crp = &tx4939_ircptr->dm[(irq_nr & 8) >> 3].r;
+ } else {
+ irq_nr -= 32;
+ crp = &tx4939_ircptr->dm2[((irq_nr & 8) >> 3)].r;
+ }
+ ofs = (((irq_nr & 16) >> 1) | (irq_nr & (8 - 1))) * 2;
+ cr = __raw_readl(crp);
+ cr &= ~(0x3 << ofs);
+ cr |= (mode & 0x3) << ofs;
+ __raw_writel(cr, crp);
+ tx4939irq[irq_nr].mode = mode;
+ return 0;
+}
+
+static struct irq_chip tx4939_irq_chip = {
+ .name = "TX4939",
+ .irq_ack = tx4939_irq_mask_ack,
+ .irq_mask = tx4939_irq_mask,
+ .irq_mask_ack = tx4939_irq_mask_ack,
+ .irq_unmask = tx4939_irq_unmask,
+ .irq_set_type = tx4939_irq_set_type,
+};
+
+static int tx4939_irq_set_pri(int irc_irq, int new_pri)
+{
+ int old_pri;
+
+ if ((unsigned int)irc_irq >= TX4939_NUM_IR)
+ return 0;
+ old_pri = tx4939irq[irc_irq].level;
+ tx4939irq[irc_irq].level = new_pri;
+ return old_pri;
+}
+
+void __init tx4939_irq_init(void)
+{
+ int i;
+
+ mips_cpu_irq_init();
+ /* disable interrupt control */
+ __raw_writel(0, &tx4939_ircptr->den.r);
+ __raw_writel(0, &tx4939_ircptr->maskint.r);
+ __raw_writel(0, &tx4939_ircptr->maskext.r);
+ /* irq_base + 0 is not used */
+ for (i = 1; i < TX4939_NUM_IR; i++) {
+ tx4939irq[i].level = 4; /* middle level */
+ tx4939irq[i].mode = TXx9_IRCR_LOW;
+ irq_set_chip_and_handler(TXX9_IRQ_BASE + i, &tx4939_irq_chip,
+ handle_level_irq);
+ }
+
+ /* mask all IRC interrupts */
+ __raw_writel(0, &tx4939_ircptr->msk.r);
+ for (i = 0; i < 16; i++)
+ __raw_writel(0, &tx4939_ircptr->lvl[i].r);
+ /* setup IRC interrupt mode (Low Active) */
+ for (i = 0; i < 2; i++)
+ __raw_writel(0, &tx4939_ircptr->dm[i].r);
+ for (i = 0; i < 2; i++)
+ __raw_writel(0, &tx4939_ircptr->dm2[i].r);
+ /* enable interrupt control */
+ __raw_writel(TXx9_IRCER_ICE, &tx4939_ircptr->den.r);
+ __raw_writel(irc_elevel, &tx4939_ircptr->msk.r);
+
+ irq_set_chained_handler(MIPS_CPU_IRQ_BASE + TX4939_IRC_INT,
+ handle_simple_irq);
+
+ /* raise priority for errors, timers, sio */
+ tx4939_irq_set_pri(TX4939_IR_WTOERR, 7);
+ tx4939_irq_set_pri(TX4939_IR_PCIERR, 7);
+ tx4939_irq_set_pri(TX4939_IR_PCIPME, 7);
+ for (i = 0; i < TX4939_NUM_IR_TMR; i++)
+ tx4939_irq_set_pri(TX4939_IR_TMR(i), 6);
+ for (i = 0; i < TX4939_NUM_IR_SIO; i++)
+ tx4939_irq_set_pri(TX4939_IR_SIO(i), 5);
+}
+
+int tx4939_irq(void)
+{
+ u32 csr = __raw_readl(&tx4939_ircptr->cs.r);
+
+ if (likely(!(csr & TXx9_IRCSR_IF)))
+ return TXX9_IRQ_BASE + (csr & (TX4939_NUM_IR - 1));
+ return -1;
+}
diff --git a/arch/mips/txx9/generic/mem_tx4927.c b/arch/mips/txx9/generic/mem_tx4927.c
new file mode 100644
index 000000000..deea2ceae
--- /dev/null
+++ b/arch/mips/txx9/generic/mem_tx4927.c
@@ -0,0 +1,75 @@
+/*
+ * common tx4927 memory interface
+ *
+ * Author: MontaVista Software, Inc.
+ * source@mvista.com
+ *
+ * Copyright 2001-2002 MontaVista Software Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+ * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/io.h>
+#include <asm/txx9/tx4927.h>
+
+static unsigned int __init tx4927_process_sdccr(u64 __iomem *addr)
+{
+ u64 val;
+ unsigned int sdccr_ce;
+ unsigned int sdccr_bs;
+ unsigned int sdccr_rs;
+ unsigned int sdccr_cs;
+ unsigned int sdccr_mw;
+ unsigned int bs = 0;
+ unsigned int rs = 0;
+ unsigned int cs = 0;
+ unsigned int mw = 0;
+
+ val = __raw_readq(addr);
+
+ /* MVMCP -- need #defs for these bits masks */
+ sdccr_ce = ((val & (1 << 10)) >> 10);
+ sdccr_bs = ((val & (1 << 8)) >> 8);
+ sdccr_rs = ((val & (3 << 5)) >> 5);
+ sdccr_cs = ((val & (7 << 2)) >> 2);
+ sdccr_mw = ((val & (1 << 0)) >> 0);
+
+ if (sdccr_ce) {
+ bs = 2 << sdccr_bs;
+ rs = 2048 << sdccr_rs;
+ cs = 256 << sdccr_cs;
+ mw = 8 >> sdccr_mw;
+ }
+
+ return rs * cs * mw * bs;
+}
+
+unsigned int __init tx4927_get_mem_size(void)
+{
+ unsigned int total = 0;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(tx4927_sdramcptr->cr); i++)
+ total += tx4927_process_sdccr(&tx4927_sdramcptr->cr[i]);
+ return total;
+}
diff --git a/arch/mips/txx9/generic/pci.c b/arch/mips/txx9/generic/pci.c
new file mode 100644
index 000000000..fb998726b
--- /dev/null
+++ b/arch/mips/txx9/generic/pci.c
@@ -0,0 +1,432 @@
+/*
+ * linux/arch/mips/txx9/pci.c
+ *
+ * Based on linux/arch/mips/txx9/rbtx4927/setup.c,
+ * linux/arch/mips/txx9/rbtx4938/setup.c,
+ * and RBTX49xx patch from CELF patch archive.
+ *
+ * Copyright 2001-2005 MontaVista Software Inc.
+ * Copyright (C) 1996, 97, 2001, 04 Ralf Baechle (ralf@linux-mips.org)
+ * (C) Copyright TOSHIBA CORPORATION 2000-2001, 2004-2007
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/delay.h>
+#include <linux/jiffies.h>
+#include <linux/io.h>
+#include <asm/txx9/generic.h>
+#include <asm/txx9/pci.h>
+#ifdef CONFIG_TOSHIBA_FPCIB0
+#include <linux/interrupt.h>
+#include <linux/slab.h>
+#include <asm/i8259.h>
+#include <asm/txx9/smsc_fdc37m81x.h>
+#endif
+
+static int __init
+early_read_config_word(struct pci_controller *hose,
+ int top_bus, int bus, int devfn, int offset, u16 *value)
+{
+ struct pci_bus fake_bus;
+
+ fake_bus.number = bus;
+ fake_bus.sysdata = hose;
+ fake_bus.ops = hose->pci_ops;
+
+ if (bus != top_bus)
+ /* Fake a parent bus structure. */
+ fake_bus.parent = &fake_bus;
+ else
+ fake_bus.parent = NULL;
+
+ return pci_bus_read_config_word(&fake_bus, devfn, offset, value);
+}
+
+int __init txx9_pci66_check(struct pci_controller *hose, int top_bus,
+ int current_bus)
+{
+ u32 pci_devfn;
+ unsigned short vid;
+ int cap66 = -1;
+ u16 stat;
+
+ /* It seems SLC90E66 needs some time after PCI reset... */
+ mdelay(80);
+
+ pr_info("PCI: Checking 66MHz capabilities...\n");
+
+ for (pci_devfn = 0; pci_devfn < 0xff; pci_devfn++) {
+ if (PCI_FUNC(pci_devfn))
+ continue;
+ if (early_read_config_word(hose, top_bus, current_bus,
+ pci_devfn, PCI_VENDOR_ID, &vid) !=
+ PCIBIOS_SUCCESSFUL)
+ continue;
+ if (vid == 0xffff)
+ continue;
+
+ /* check 66MHz capability */
+ if (cap66 < 0)
+ cap66 = 1;
+ if (cap66) {
+ early_read_config_word(hose, top_bus, current_bus,
+ pci_devfn, PCI_STATUS, &stat);
+ if (!(stat & PCI_STATUS_66MHZ)) {
+ pr_debug("PCI: %02x:%02x not 66MHz capable.\n",
+ current_bus, pci_devfn);
+ cap66 = 0;
+ break;
+ }
+ }
+ }
+ return cap66 > 0;
+}
+
+static struct resource primary_pci_mem_res[2] = {
+ { .name = "PCI MEM" },
+ { .name = "PCI MMIO" },
+};
+static struct resource primary_pci_io_res = { .name = "PCI IO" };
+struct pci_controller txx9_primary_pcic = {
+ .mem_resource = &primary_pci_mem_res[0],
+ .io_resource = &primary_pci_io_res,
+};
+
+#ifdef CONFIG_64BIT
+int txx9_pci_mem_high __initdata = 1;
+#else
+int txx9_pci_mem_high __initdata;
+#endif
+
+/*
+ * allocate pci_controller and resources.
+ * mem_base, io_base: physical address. 0 for auto assignment.
+ * mem_size and io_size means max size on auto assignment.
+ * pcic must be &txx9_primary_pcic or NULL.
+ */
+struct pci_controller *__init
+txx9_alloc_pci_controller(struct pci_controller *pcic,
+ unsigned long mem_base, unsigned long mem_size,
+ unsigned long io_base, unsigned long io_size)
+{
+ struct pcic {
+ struct pci_controller c;
+ struct resource r_mem[2];
+ struct resource r_io;
+ } *new = NULL;
+ int min_size = 0x10000;
+
+ if (!pcic) {
+ new = kzalloc(sizeof(*new), GFP_KERNEL);
+ if (!new)
+ return NULL;
+ new->r_mem[0].name = "PCI mem";
+ new->r_mem[1].name = "PCI mmio";
+ new->r_io.name = "PCI io";
+ new->c.mem_resource = new->r_mem;
+ new->c.io_resource = &new->r_io;
+ pcic = &new->c;
+ } else
+ BUG_ON(pcic != &txx9_primary_pcic);
+ pcic->io_resource->flags = IORESOURCE_IO;
+
+ /*
+ * for auto assignment, first search a (big) region for PCI
+ * MEM, then search a region for PCI IO.
+ */
+ if (mem_base) {
+ pcic->mem_resource[0].start = mem_base;
+ pcic->mem_resource[0].end = mem_base + mem_size - 1;
+ if (request_resource(&iomem_resource, &pcic->mem_resource[0]))
+ goto free_and_exit;
+ } else {
+ unsigned long min = 0, max = 0x20000000; /* low 512MB */
+ if (!mem_size) {
+ /* default size for auto assignment */
+ if (txx9_pci_mem_high)
+ mem_size = 0x20000000; /* mem:512M(max) */
+ else
+ mem_size = 0x08000000; /* mem:128M(max) */
+ }
+ if (txx9_pci_mem_high) {
+ min = 0x20000000;
+ max = 0xe0000000;
+ }
+ /* search free region for PCI MEM */
+ for (; mem_size >= min_size; mem_size /= 2) {
+ if (allocate_resource(&iomem_resource,
+ &pcic->mem_resource[0],
+ mem_size, min, max,
+ mem_size, NULL, NULL) == 0)
+ break;
+ }
+ if (mem_size < min_size)
+ goto free_and_exit;
+ }
+
+ pcic->mem_resource[1].flags = IORESOURCE_MEM | IORESOURCE_BUSY;
+ if (io_base) {
+ pcic->mem_resource[1].start = io_base;
+ pcic->mem_resource[1].end = io_base + io_size - 1;
+ if (request_resource(&iomem_resource, &pcic->mem_resource[1]))
+ goto release_and_exit;
+ } else {
+ if (!io_size)
+ /* default size for auto assignment */
+ io_size = 0x01000000; /* io:16M(max) */
+ /* search free region for PCI IO in low 512MB */
+ for (; io_size >= min_size; io_size /= 2) {
+ if (allocate_resource(&iomem_resource,
+ &pcic->mem_resource[1],
+ io_size, 0, 0x20000000,
+ io_size, NULL, NULL) == 0)
+ break;
+ }
+ if (io_size < min_size)
+ goto release_and_exit;
+ io_base = pcic->mem_resource[1].start;
+ }
+
+ pcic->mem_resource[0].flags = IORESOURCE_MEM;
+ if (pcic == &txx9_primary_pcic &&
+ mips_io_port_base == (unsigned long)-1) {
+ /* map ioport 0 to PCI I/O space address 0 */
+ set_io_port_base(IO_BASE + pcic->mem_resource[1].start);
+ pcic->io_resource->start = 0;
+ pcic->io_offset = 0; /* busaddr == ioaddr */
+ pcic->io_map_base = IO_BASE + pcic->mem_resource[1].start;
+ } else {
+ /* physaddr to ioaddr */
+ pcic->io_resource->start =
+ io_base - (mips_io_port_base - IO_BASE);
+ pcic->io_offset = io_base - (mips_io_port_base - IO_BASE);
+ pcic->io_map_base = mips_io_port_base;
+ }
+ pcic->io_resource->end = pcic->io_resource->start + io_size - 1;
+
+ pcic->mem_offset = 0; /* busaddr == physaddr */
+
+ pr_info("PCI: IO %pR MEM %pR\n", &pcic->mem_resource[1],
+ &pcic->mem_resource[0]);
+
+ /* register_pci_controller() will request MEM resource */
+ release_resource(&pcic->mem_resource[0]);
+ return pcic;
+ release_and_exit:
+ release_resource(&pcic->mem_resource[0]);
+ free_and_exit:
+ kfree(new);
+ pr_err("PCI: Failed to allocate resources.\n");
+ return NULL;
+}
+
+static int __init
+txx9_arch_pci_init(void)
+{
+ PCIBIOS_MIN_IO = 0x8000; /* reseve legacy I/O space */
+ return 0;
+}
+arch_initcall(txx9_arch_pci_init);
+
+/* IRQ/IDSEL mapping */
+int txx9_pci_option =
+#ifdef CONFIG_PICMG_PCI_BACKPLANE_DEFAULT
+ TXX9_PCI_OPT_PICMG |
+#endif
+ TXX9_PCI_OPT_CLK_AUTO;
+
+enum txx9_pci_err_action txx9_pci_err_action = TXX9_PCI_ERR_REPORT;
+
+#ifdef CONFIG_TOSHIBA_FPCIB0
+static irqreturn_t i8259_interrupt(int irq, void *dev_id)
+{
+ int isairq;
+
+ isairq = i8259_irq();
+ if (unlikely(isairq <= I8259A_IRQ_BASE))
+ return IRQ_NONE;
+ generic_handle_irq(isairq);
+ return IRQ_HANDLED;
+}
+
+static int txx9_i8259_irq_setup(int irq)
+{
+ int err;
+
+ init_i8259_irqs();
+ err = request_irq(irq, &i8259_interrupt, IRQF_SHARED,
+ "cascade(i8259)", (void *)(long)irq);
+ if (!err)
+ pr_info("PCI-ISA bridge PIC (irq %d)\n", irq);
+ return err;
+}
+
+static void __ref quirk_slc90e66_bridge(struct pci_dev *dev)
+{
+ int irq; /* PCI/ISA Bridge interrupt */
+ u8 reg_64;
+ u32 reg_b0;
+ u8 reg_e1;
+ irq = pcibios_map_irq(dev, PCI_SLOT(dev->devfn), 1); /* INTA */
+ if (!irq)
+ return;
+ txx9_i8259_irq_setup(irq);
+ pci_read_config_byte(dev, 0x64, &reg_64);
+ pci_read_config_dword(dev, 0xb0, &reg_b0);
+ pci_read_config_byte(dev, 0xe1, &reg_e1);
+ /* serial irq control */
+ reg_64 = 0xd0;
+ /* serial irq pin */
+ reg_b0 |= 0x00010000;
+ /* ide irq on isa14 */
+ reg_e1 &= 0xf0;
+ reg_e1 |= 0x0d;
+ pci_write_config_byte(dev, 0x64, reg_64);
+ pci_write_config_dword(dev, 0xb0, reg_b0);
+ pci_write_config_byte(dev, 0xe1, reg_e1);
+
+ smsc_fdc37m81x_init(0x3f0);
+ smsc_fdc37m81x_config_beg();
+ smsc_fdc37m81x_config_set(SMSC_FDC37M81X_DNUM,
+ SMSC_FDC37M81X_KBD);
+ smsc_fdc37m81x_config_set(SMSC_FDC37M81X_INT, 1);
+ smsc_fdc37m81x_config_set(SMSC_FDC37M81X_INT2, 12);
+ smsc_fdc37m81x_config_set(SMSC_FDC37M81X_ACTIVE,
+ 1);
+ smsc_fdc37m81x_config_end();
+}
+
+static void quirk_slc90e66_ide(struct pci_dev *dev)
+{
+ unsigned char dat;
+ int regs[2] = {0x41, 0x43};
+ int i;
+
+ /* SMSC SLC90E66 IDE uses irq 14, 15 (default) */
+ pci_write_config_byte(dev, PCI_INTERRUPT_LINE, 14);
+ pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &dat);
+ pr_info("PCI: %s: IRQ %02x", pci_name(dev), dat);
+ /* enable SMSC SLC90E66 IDE */
+ for (i = 0; i < ARRAY_SIZE(regs); i++) {
+ pci_read_config_byte(dev, regs[i], &dat);
+ pci_write_config_byte(dev, regs[i], dat | 0x80);
+ pci_read_config_byte(dev, regs[i], &dat);
+ pr_cont(" IDETIM%d %02x", i, dat);
+ }
+ pci_read_config_byte(dev, 0x5c, &dat);
+ /*
+ * !!! DO NOT REMOVE THIS COMMENT IT IS REQUIRED BY SMSC !!!
+ *
+ * This line of code is intended to provide the user with a work
+ * around solution to the anomalies cited in SMSC's anomaly sheet
+ * entitled, "SLC90E66 Functional Rev.J_0.1 Anomalies"".
+ *
+ * !!! DO NOT REMOVE THIS COMMENT IT IS REQUIRED BY SMSC !!!
+ */
+ dat |= 0x01;
+ pci_write_config_byte(dev, 0x5c, dat);
+ pci_read_config_byte(dev, 0x5c, &dat);
+ pr_cont(" REG5C %02x\n", dat);
+}
+#endif /* CONFIG_TOSHIBA_FPCIB0 */
+
+static void tc35815_fixup(struct pci_dev *dev)
+{
+ /* This device may have PM registers but not they are not supported. */
+ if (dev->pm_cap) {
+ dev_info(&dev->dev, "PM disabled\n");
+ dev->pm_cap = 0;
+ }
+}
+
+static void final_fixup(struct pci_dev *dev)
+{
+ unsigned char bist;
+
+ /* Do build-in self test */
+ if (pci_read_config_byte(dev, PCI_BIST, &bist) == PCIBIOS_SUCCESSFUL &&
+ (bist & PCI_BIST_CAPABLE)) {
+ unsigned long timeout;
+ pci_set_power_state(dev, PCI_D0);
+ pr_info("PCI: %s BIST...", pci_name(dev));
+ pci_write_config_byte(dev, PCI_BIST, PCI_BIST_START);
+ timeout = jiffies + HZ * 2; /* timeout after 2 sec */
+ do {
+ pci_read_config_byte(dev, PCI_BIST, &bist);
+ if (time_after(jiffies, timeout))
+ break;
+ } while (bist & PCI_BIST_START);
+ if (bist & (PCI_BIST_CODE_MASK | PCI_BIST_START))
+ pr_cont("failed. (0x%x)\n", bist);
+ else
+ pr_cont("OK.\n");
+ }
+}
+
+#ifdef CONFIG_TOSHIBA_FPCIB0
+#define PCI_DEVICE_ID_EFAR_SLC90E66_0 0x9460
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_EFAR, PCI_DEVICE_ID_EFAR_SLC90E66_0,
+ quirk_slc90e66_bridge);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_EFAR, PCI_DEVICE_ID_EFAR_SLC90E66_1,
+ quirk_slc90e66_ide);
+DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_EFAR, PCI_DEVICE_ID_EFAR_SLC90E66_1,
+ quirk_slc90e66_ide);
+#endif
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_TOSHIBA_2,
+ PCI_DEVICE_ID_TOSHIBA_TC35815_NWU, tc35815_fixup);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_TOSHIBA_2,
+ PCI_DEVICE_ID_TOSHIBA_TC35815_TX4939, tc35815_fixup);
+DECLARE_PCI_FIXUP_FINAL(PCI_ANY_ID, PCI_ANY_ID, final_fixup);
+DECLARE_PCI_FIXUP_RESUME(PCI_ANY_ID, PCI_ANY_ID, final_fixup);
+
+int pcibios_plat_dev_init(struct pci_dev *dev)
+{
+ return 0;
+}
+
+static int (*txx9_pci_map_irq)(const struct pci_dev *dev, u8 slot, u8 pin);
+int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+ return txx9_pci_map_irq(dev, slot, pin);
+}
+
+char * (*txx9_board_pcibios_setup)(char *str) __initdata;
+
+char *__init txx9_pcibios_setup(char *str)
+{
+ if (txx9_board_pcibios_setup && !txx9_board_pcibios_setup(str))
+ return NULL;
+ if (!strcmp(str, "picmg")) {
+ /* PICMG compliant backplane (TOSHIBA JMB-PICMG-ATX
+ (5V or 3.3V), JMB-PICMG-L2 (5V only), etc.) */
+ txx9_pci_option |= TXX9_PCI_OPT_PICMG;
+ return NULL;
+ } else if (!strcmp(str, "nopicmg")) {
+ /* non-PICMG compliant backplane (TOSHIBA
+ RBHBK4100,RBHBK4200, Interface PCM-PCM05, etc.) */
+ txx9_pci_option &= ~TXX9_PCI_OPT_PICMG;
+ return NULL;
+ } else if (!strncmp(str, "clk=", 4)) {
+ char *val = str + 4;
+ txx9_pci_option &= ~TXX9_PCI_OPT_CLK_MASK;
+ if (strcmp(val, "33") == 0)
+ txx9_pci_option |= TXX9_PCI_OPT_CLK_33;
+ else if (strcmp(val, "66") == 0)
+ txx9_pci_option |= TXX9_PCI_OPT_CLK_66;
+ else /* "auto" */
+ txx9_pci_option |= TXX9_PCI_OPT_CLK_AUTO;
+ return NULL;
+ } else if (!strncmp(str, "err=", 4)) {
+ if (!strcmp(str + 4, "panic"))
+ txx9_pci_err_action = TXX9_PCI_ERR_PANIC;
+ else if (!strcmp(str + 4, "ignore"))
+ txx9_pci_err_action = TXX9_PCI_ERR_IGNORE;
+ return NULL;
+ }
+
+ txx9_pci_map_irq = txx9_board_vec->pci_map_irq;
+
+ return str;
+}
diff --git a/arch/mips/txx9/generic/setup.c b/arch/mips/txx9/generic/setup.c
new file mode 100644
index 000000000..70a1ab66d
--- /dev/null
+++ b/arch/mips/txx9/generic/setup.c
@@ -0,0 +1,970 @@
+/*
+ * Based on linux/arch/mips/txx9/rbtx4938/setup.c,
+ * and RBTX49xx patch from CELF patch archive.
+ *
+ * 2003-2005 (c) MontaVista Software, Inc.
+ * (C) Copyright TOSHIBA CORPORATION 2000-2001, 2004-2007
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/interrupt.h>
+#include <linux/string.h>
+#include <linux/export.h>
+#include <linux/clk-provider.h>
+#include <linux/clkdev.h>
+#include <linux/err.h>
+#include <linux/gpio/driver.h>
+#include <linux/platform_device.h>
+#include <linux/platform_data/txx9/ndfmc.h>
+#include <linux/serial_core.h>
+#include <linux/mtd/physmap.h>
+#include <linux/leds.h>
+#include <linux/device.h>
+#include <linux/slab.h>
+#include <linux/irq.h>
+#include <asm/bootinfo.h>
+#include <asm/idle.h>
+#include <asm/time.h>
+#include <asm/reboot.h>
+#include <asm/r4kcache.h>
+#include <asm/sections.h>
+#include <asm/setup.h>
+#include <asm/txx9/generic.h>
+#include <asm/txx9/pci.h>
+#include <asm/txx9tmr.h>
+#include <asm/txx9/dmac.h>
+#ifdef CONFIG_CPU_TX49XX
+#include <asm/txx9/tx4938.h>
+#endif
+
+/* EBUSC settings of TX4927, etc. */
+struct resource txx9_ce_res[8];
+static char txx9_ce_res_name[8][4]; /* "CEn" */
+
+/* pcode, internal register */
+unsigned int txx9_pcode;
+char txx9_pcode_str[8];
+static struct resource txx9_reg_res = {
+ .name = txx9_pcode_str,
+ .flags = IORESOURCE_MEM,
+};
+void __init
+txx9_reg_res_init(unsigned int pcode, unsigned long base, unsigned long size)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(txx9_ce_res); i++) {
+ sprintf(txx9_ce_res_name[i], "CE%d", i);
+ txx9_ce_res[i].flags = IORESOURCE_MEM;
+ txx9_ce_res[i].name = txx9_ce_res_name[i];
+ }
+
+ txx9_pcode = pcode;
+ sprintf(txx9_pcode_str, "TX%x", pcode);
+ if (base) {
+ txx9_reg_res.start = base & 0xfffffffffULL;
+ txx9_reg_res.end = (base & 0xfffffffffULL) + (size - 1);
+ request_resource(&iomem_resource, &txx9_reg_res);
+ }
+}
+
+/* clocks */
+unsigned int txx9_master_clock;
+unsigned int txx9_cpu_clock;
+unsigned int txx9_gbus_clock;
+
+#ifdef CONFIG_CPU_TX39XX
+/* don't enable by default - see errata */
+int txx9_ccfg_toeon __initdata;
+#else
+int txx9_ccfg_toeon __initdata = 1;
+#endif
+
+#define BOARD_VEC(board) extern struct txx9_board_vec board;
+#include <asm/txx9/boards.h>
+#undef BOARD_VEC
+
+struct txx9_board_vec *txx9_board_vec __initdata;
+static char txx9_system_type[32];
+
+static struct txx9_board_vec *board_vecs[] __initdata = {
+#define BOARD_VEC(board) &board,
+#include <asm/txx9/boards.h>
+#undef BOARD_VEC
+};
+
+static struct txx9_board_vec *__init find_board_byname(const char *name)
+{
+ int i;
+
+ /* search board_vecs table */
+ for (i = 0; i < ARRAY_SIZE(board_vecs); i++) {
+ if (strstr(board_vecs[i]->system, name))
+ return board_vecs[i];
+ }
+ return NULL;
+}
+
+static void __init prom_init_cmdline(void)
+{
+ int argc;
+ int *argv32;
+ int i; /* Always ignore the "-c" at argv[0] */
+
+ if (fw_arg0 >= CKSEG0 || fw_arg1 < CKSEG0) {
+ /*
+ * argc is not a valid number, or argv32 is not a valid
+ * pointer
+ */
+ argc = 0;
+ argv32 = NULL;
+ } else {
+ argc = (int)fw_arg0;
+ argv32 = (int *)fw_arg1;
+ }
+
+ arcs_cmdline[0] = '\0';
+
+ for (i = 1; i < argc; i++) {
+ char *str = (char *)(long)argv32[i];
+ if (i != 1)
+ strcat(arcs_cmdline, " ");
+ if (strchr(str, ' ')) {
+ strcat(arcs_cmdline, "\"");
+ strcat(arcs_cmdline, str);
+ strcat(arcs_cmdline, "\"");
+ } else
+ strcat(arcs_cmdline, str);
+ }
+}
+
+static int txx9_ic_disable __initdata;
+static int txx9_dc_disable __initdata;
+
+#if defined(CONFIG_CPU_TX49XX)
+/* flush all cache on very early stage (before 4k_cache_init) */
+static void __init early_flush_dcache(void)
+{
+ unsigned int conf = read_c0_config();
+ unsigned int dc_size = 1 << (12 + ((conf & CONF_DC) >> 6));
+ unsigned int linesz = 32;
+ unsigned long addr, end;
+
+ end = INDEX_BASE + dc_size / 4;
+ /* 4way, waybit=0 */
+ for (addr = INDEX_BASE; addr < end; addr += linesz) {
+ cache_op(Index_Writeback_Inv_D, addr | 0);
+ cache_op(Index_Writeback_Inv_D, addr | 1);
+ cache_op(Index_Writeback_Inv_D, addr | 2);
+ cache_op(Index_Writeback_Inv_D, addr | 3);
+ }
+}
+
+static void __init txx9_cache_fixup(void)
+{
+ unsigned int conf;
+
+ conf = read_c0_config();
+ /* flush and disable */
+ if (txx9_ic_disable) {
+ conf |= TX49_CONF_IC;
+ write_c0_config(conf);
+ }
+ if (txx9_dc_disable) {
+ early_flush_dcache();
+ conf |= TX49_CONF_DC;
+ write_c0_config(conf);
+ }
+
+ /* enable cache */
+ conf = read_c0_config();
+ if (!txx9_ic_disable)
+ conf &= ~TX49_CONF_IC;
+ if (!txx9_dc_disable)
+ conf &= ~TX49_CONF_DC;
+ write_c0_config(conf);
+
+ if (conf & TX49_CONF_IC)
+ pr_info("TX49XX I-Cache disabled.\n");
+ if (conf & TX49_CONF_DC)
+ pr_info("TX49XX D-Cache disabled.\n");
+}
+#elif defined(CONFIG_CPU_TX39XX)
+/* flush all cache on very early stage (before tx39_cache_init) */
+static void __init early_flush_dcache(void)
+{
+ unsigned int conf = read_c0_config();
+ unsigned int dc_size = 1 << (10 + ((conf & TX39_CONF_DCS_MASK) >>
+ TX39_CONF_DCS_SHIFT));
+ unsigned int linesz = 16;
+ unsigned long addr, end;
+
+ end = INDEX_BASE + dc_size / 2;
+ /* 2way, waybit=0 */
+ for (addr = INDEX_BASE; addr < end; addr += linesz) {
+ cache_op(Index_Writeback_Inv_D, addr | 0);
+ cache_op(Index_Writeback_Inv_D, addr | 1);
+ }
+}
+
+static void __init txx9_cache_fixup(void)
+{
+ unsigned int conf;
+
+ conf = read_c0_config();
+ /* flush and disable */
+ if (txx9_ic_disable) {
+ conf &= ~TX39_CONF_ICE;
+ write_c0_config(conf);
+ }
+ if (txx9_dc_disable) {
+ early_flush_dcache();
+ conf &= ~TX39_CONF_DCE;
+ write_c0_config(conf);
+ }
+
+ /* enable cache */
+ conf = read_c0_config();
+ if (!txx9_ic_disable)
+ conf |= TX39_CONF_ICE;
+ if (!txx9_dc_disable)
+ conf |= TX39_CONF_DCE;
+ write_c0_config(conf);
+
+ if (!(conf & TX39_CONF_ICE))
+ pr_info("TX39XX I-Cache disabled.\n");
+ if (!(conf & TX39_CONF_DCE))
+ pr_info("TX39XX D-Cache disabled.\n");
+}
+#else
+static inline void txx9_cache_fixup(void)
+{
+}
+#endif
+
+static void __init preprocess_cmdline(void)
+{
+ static char cmdline[COMMAND_LINE_SIZE] __initdata;
+ char *s;
+
+ strcpy(cmdline, arcs_cmdline);
+ s = cmdline;
+ arcs_cmdline[0] = '\0';
+ while (s && *s) {
+ char *str = strsep(&s, " ");
+ if (strncmp(str, "board=", 6) == 0) {
+ txx9_board_vec = find_board_byname(str + 6);
+ continue;
+ } else if (strncmp(str, "masterclk=", 10) == 0) {
+ unsigned int val;
+ if (kstrtouint(str + 10, 10, &val) == 0)
+ txx9_master_clock = val;
+ continue;
+ } else if (strcmp(str, "icdisable") == 0) {
+ txx9_ic_disable = 1;
+ continue;
+ } else if (strcmp(str, "dcdisable") == 0) {
+ txx9_dc_disable = 1;
+ continue;
+ } else if (strcmp(str, "toeoff") == 0) {
+ txx9_ccfg_toeon = 0;
+ continue;
+ } else if (strcmp(str, "toeon") == 0) {
+ txx9_ccfg_toeon = 1;
+ continue;
+ }
+ if (arcs_cmdline[0])
+ strcat(arcs_cmdline, " ");
+ strcat(arcs_cmdline, str);
+ }
+
+ txx9_cache_fixup();
+}
+
+static void __init select_board(void)
+{
+ const char *envstr;
+
+ /* first, determine by "board=" argument in preprocess_cmdline() */
+ if (txx9_board_vec)
+ return;
+ /* next, determine by "board" envvar */
+ envstr = prom_getenv("board");
+ if (envstr) {
+ txx9_board_vec = find_board_byname(envstr);
+ if (txx9_board_vec)
+ return;
+ }
+
+ /* select "default" board */
+#ifdef CONFIG_TOSHIBA_JMR3927
+ txx9_board_vec = &jmr3927_vec;
+#endif
+#ifdef CONFIG_CPU_TX49XX
+ switch (TX4938_REV_PCODE()) {
+#ifdef CONFIG_TOSHIBA_RBTX4927
+ case 0x4927:
+ txx9_board_vec = &rbtx4927_vec;
+ break;
+ case 0x4937:
+ txx9_board_vec = &rbtx4937_vec;
+ break;
+#endif
+#ifdef CONFIG_TOSHIBA_RBTX4938
+ case 0x4938:
+ txx9_board_vec = &rbtx4938_vec;
+ break;
+#endif
+#ifdef CONFIG_TOSHIBA_RBTX4939
+ case 0x4939:
+ txx9_board_vec = &rbtx4939_vec;
+ break;
+#endif
+ }
+#endif
+}
+
+void __init prom_init(void)
+{
+ prom_init_cmdline();
+ preprocess_cmdline();
+ select_board();
+
+ strcpy(txx9_system_type, txx9_board_vec->system);
+
+ txx9_board_vec->prom_init();
+}
+
+void __init prom_free_prom_memory(void)
+{
+ unsigned long saddr = PAGE_SIZE;
+ unsigned long eaddr = __pa_symbol(&_text);
+
+ if (saddr < eaddr)
+ free_init_pages("prom memory", saddr, eaddr);
+}
+
+const char *get_system_type(void)
+{
+ return txx9_system_type;
+}
+
+const char *__init prom_getenv(const char *name)
+{
+ const s32 *str;
+
+ if (fw_arg2 < CKSEG0)
+ return NULL;
+
+ str = (const s32 *)fw_arg2;
+ /* YAMON style ("name", "value" pairs) */
+ while (str[0] && str[1]) {
+ if (!strcmp((const char *)(unsigned long)str[0], name))
+ return (const char *)(unsigned long)str[1];
+ str += 2;
+ }
+ return NULL;
+}
+
+static void __noreturn txx9_machine_halt(void)
+{
+ local_irq_disable();
+ clear_c0_status(ST0_IM);
+ while (1) {
+ if (cpu_wait) {
+ (*cpu_wait)();
+ if (cpu_has_counter) {
+ /*
+ * Clear counter interrupt while it
+ * breaks WAIT instruction even if
+ * masked.
+ */
+ write_c0_compare(0);
+ }
+ }
+ }
+}
+
+/* Watchdog support */
+void __init txx9_wdt_init(unsigned long base)
+{
+ struct resource res = {
+ .start = base,
+ .end = base + 0x100 - 1,
+ .flags = IORESOURCE_MEM,
+ };
+ platform_device_register_simple("txx9wdt", -1, &res, 1);
+}
+
+void txx9_wdt_now(unsigned long base)
+{
+ struct txx9_tmr_reg __iomem *tmrptr =
+ ioremap(base, sizeof(struct txx9_tmr_reg));
+ /* disable watch dog timer */
+ __raw_writel(TXx9_TMWTMR_WDIS | TXx9_TMWTMR_TWC, &tmrptr->wtmr);
+ __raw_writel(0, &tmrptr->tcr);
+ /* kick watchdog */
+ __raw_writel(TXx9_TMWTMR_TWIE, &tmrptr->wtmr);
+ __raw_writel(1, &tmrptr->cpra); /* immediate */
+ __raw_writel(TXx9_TMTCR_TCE | TXx9_TMTCR_CCDE | TXx9_TMTCR_TMODE_WDOG,
+ &tmrptr->tcr);
+}
+
+/* SPI support */
+void __init txx9_spi_init(int busid, unsigned long base, int irq)
+{
+ struct resource res[] = {
+ {
+ .start = base,
+ .end = base + 0x20 - 1,
+ .flags = IORESOURCE_MEM,
+ }, {
+ .start = irq,
+ .flags = IORESOURCE_IRQ,
+ },
+ };
+ platform_device_register_simple("spi_txx9", busid,
+ res, ARRAY_SIZE(res));
+}
+
+void __init txx9_ethaddr_init(unsigned int id, unsigned char *ethaddr)
+{
+ struct platform_device *pdev =
+ platform_device_alloc("tc35815-mac", id);
+ if (!pdev ||
+ platform_device_add_data(pdev, ethaddr, 6) ||
+ platform_device_add(pdev))
+ platform_device_put(pdev);
+}
+
+void __init txx9_sio_init(unsigned long baseaddr, int irq,
+ unsigned int line, unsigned int sclk, int nocts)
+{
+#ifdef CONFIG_SERIAL_TXX9
+ struct uart_port req;
+
+ memset(&req, 0, sizeof(req));
+ req.line = line;
+ req.iotype = UPIO_MEM;
+ req.membase = ioremap(baseaddr, 0x24);
+ req.mapbase = baseaddr;
+ req.irq = irq;
+ if (!nocts)
+ req.flags |= UPF_BUGGY_UART /*HAVE_CTS_LINE*/;
+ if (sclk) {
+ req.flags |= UPF_MAGIC_MULTIPLIER /*USE_SCLK*/;
+ req.uartclk = sclk;
+ } else
+ req.uartclk = TXX9_IMCLK;
+ early_serial_txx9_setup(&req);
+#endif /* CONFIG_SERIAL_TXX9 */
+}
+
+#ifdef CONFIG_EARLY_PRINTK
+static void null_prom_putchar(char c)
+{
+}
+void (*txx9_prom_putchar)(char c) = null_prom_putchar;
+
+void prom_putchar(char c)
+{
+ txx9_prom_putchar(c);
+}
+
+static void __iomem *early_txx9_sio_port;
+
+static void early_txx9_sio_putchar(char c)
+{
+#define TXX9_SICISR 0x0c
+#define TXX9_SITFIFO 0x1c
+#define TXX9_SICISR_TXALS 0x00000002
+ while (!(__raw_readl(early_txx9_sio_port + TXX9_SICISR) &
+ TXX9_SICISR_TXALS))
+ ;
+ __raw_writel(c, early_txx9_sio_port + TXX9_SITFIFO);
+}
+
+void __init txx9_sio_putchar_init(unsigned long baseaddr)
+{
+ early_txx9_sio_port = ioremap(baseaddr, 0x24);
+ txx9_prom_putchar = early_txx9_sio_putchar;
+}
+#endif /* CONFIG_EARLY_PRINTK */
+
+/* wrappers */
+void __init plat_mem_setup(void)
+{
+ ioport_resource.start = 0;
+ ioport_resource.end = ~0UL; /* no limit */
+ iomem_resource.start = 0;
+ iomem_resource.end = ~0UL; /* no limit */
+
+ /* fallback restart/halt routines */
+ _machine_restart = (void (*)(char *))txx9_machine_halt;
+ _machine_halt = txx9_machine_halt;
+ pm_power_off = txx9_machine_halt;
+
+#ifdef CONFIG_PCI
+ pcibios_plat_setup = txx9_pcibios_setup;
+#endif
+ txx9_board_vec->mem_setup();
+}
+
+void __init arch_init_irq(void)
+{
+ txx9_board_vec->irq_setup();
+}
+
+void __init plat_time_init(void)
+{
+#ifdef CONFIG_CPU_TX49XX
+ mips_hpt_frequency = txx9_cpu_clock / 2;
+#endif
+ txx9_board_vec->time_init();
+}
+
+static void txx9_clk_init(void)
+{
+ struct clk_hw *hw;
+ int error;
+
+ hw = clk_hw_register_fixed_rate(NULL, "gbus", NULL, 0, txx9_gbus_clock);
+ if (IS_ERR(hw)) {
+ error = PTR_ERR(hw);
+ goto fail;
+ }
+
+ hw = clk_hw_register_fixed_factor(NULL, "imbus", "gbus", 0, 1, 2);
+ error = clk_hw_register_clkdev(hw, "imbus_clk", NULL);
+ if (error)
+ goto fail;
+
+#ifdef CONFIG_CPU_TX49XX
+ if (TX4938_REV_PCODE() == 0x4938) {
+ hw = clk_hw_register_fixed_factor(NULL, "spi", "gbus", 0, 1, 4);
+ error = clk_hw_register_clkdev(hw, "spi-baseclk", NULL);
+ if (error)
+ goto fail;
+ }
+#endif
+
+ return;
+
+fail:
+ pr_err("Failed to register clocks: %d\n", error);
+}
+
+static int __init _txx9_arch_init(void)
+{
+ txx9_clk_init();
+
+ if (txx9_board_vec->arch_init)
+ txx9_board_vec->arch_init();
+ return 0;
+}
+arch_initcall(_txx9_arch_init);
+
+static int __init _txx9_device_init(void)
+{
+ if (txx9_board_vec->device_init)
+ txx9_board_vec->device_init();
+ return 0;
+}
+device_initcall(_txx9_device_init);
+
+int (*txx9_irq_dispatch)(int pending);
+asmlinkage void plat_irq_dispatch(void)
+{
+ int pending = read_c0_status() & read_c0_cause() & ST0_IM;
+ int irq = txx9_irq_dispatch(pending);
+
+ if (likely(irq >= 0))
+ do_IRQ(irq);
+ else
+ spurious_interrupt();
+}
+
+/* see include/asm-mips/mach-tx39xx/mangle-port.h, for example. */
+#ifdef NEEDS_TXX9_SWIZZLE_ADDR_B
+static unsigned long __swizzle_addr_none(unsigned long port)
+{
+ return port;
+}
+unsigned long (*__swizzle_addr_b)(unsigned long port) = __swizzle_addr_none;
+EXPORT_SYMBOL(__swizzle_addr_b);
+#endif
+
+#ifdef NEEDS_TXX9_IOSWABW
+static u16 ioswabw_default(volatile u16 *a, u16 x)
+{
+ return le16_to_cpu(x);
+}
+static u16 __mem_ioswabw_default(volatile u16 *a, u16 x)
+{
+ return x;
+}
+u16 (*ioswabw)(volatile u16 *a, u16 x) = ioswabw_default;
+EXPORT_SYMBOL(ioswabw);
+u16 (*__mem_ioswabw)(volatile u16 *a, u16 x) = __mem_ioswabw_default;
+EXPORT_SYMBOL(__mem_ioswabw);
+#endif
+
+void __init txx9_physmap_flash_init(int no, unsigned long addr,
+ unsigned long size,
+ const struct physmap_flash_data *pdata)
+{
+#if IS_ENABLED(CONFIG_MTD_PHYSMAP)
+ struct resource res = {
+ .start = addr,
+ .end = addr + size - 1,
+ .flags = IORESOURCE_MEM,
+ };
+ struct platform_device *pdev;
+ static struct mtd_partition parts[2];
+ struct physmap_flash_data pdata_part;
+
+ /* If this area contained boot area, make separate partition */
+ if (pdata->nr_parts == 0 && !pdata->parts &&
+ addr < 0x1fc00000 && addr + size > 0x1fc00000 &&
+ !parts[0].name) {
+ parts[0].name = "boot";
+ parts[0].offset = 0x1fc00000 - addr;
+ parts[0].size = addr + size - 0x1fc00000;
+ parts[1].name = "user";
+ parts[1].offset = 0;
+ parts[1].size = 0x1fc00000 - addr;
+ pdata_part = *pdata;
+ pdata_part.nr_parts = ARRAY_SIZE(parts);
+ pdata_part.parts = parts;
+ pdata = &pdata_part;
+ }
+
+ pdev = platform_device_alloc("physmap-flash", no);
+ if (!pdev ||
+ platform_device_add_resources(pdev, &res, 1) ||
+ platform_device_add_data(pdev, pdata, sizeof(*pdata)) ||
+ platform_device_add(pdev))
+ platform_device_put(pdev);
+#endif
+}
+
+void __init txx9_ndfmc_init(unsigned long baseaddr,
+ const struct txx9ndfmc_platform_data *pdata)
+{
+#if IS_ENABLED(CONFIG_MTD_NAND_TXX9NDFMC)
+ struct resource res = {
+ .start = baseaddr,
+ .end = baseaddr + 0x1000 - 1,
+ .flags = IORESOURCE_MEM,
+ };
+ struct platform_device *pdev = platform_device_alloc("txx9ndfmc", -1);
+
+ if (!pdev ||
+ platform_device_add_resources(pdev, &res, 1) ||
+ platform_device_add_data(pdev, pdata, sizeof(*pdata)) ||
+ platform_device_add(pdev))
+ platform_device_put(pdev);
+#endif
+}
+
+#if IS_ENABLED(CONFIG_LEDS_GPIO)
+static DEFINE_SPINLOCK(txx9_iocled_lock);
+
+#define TXX9_IOCLED_MAXLEDS 8
+
+struct txx9_iocled_data {
+ struct gpio_chip chip;
+ u8 cur_val;
+ void __iomem *mmioaddr;
+ struct gpio_led_platform_data pdata;
+ struct gpio_led leds[TXX9_IOCLED_MAXLEDS];
+ char names[TXX9_IOCLED_MAXLEDS][32];
+};
+
+static int txx9_iocled_get(struct gpio_chip *chip, unsigned int offset)
+{
+ struct txx9_iocled_data *data = gpiochip_get_data(chip);
+ return !!(data->cur_val & (1 << offset));
+}
+
+static void txx9_iocled_set(struct gpio_chip *chip, unsigned int offset,
+ int value)
+{
+ struct txx9_iocled_data *data = gpiochip_get_data(chip);
+ unsigned long flags;
+ spin_lock_irqsave(&txx9_iocled_lock, flags);
+ if (value)
+ data->cur_val |= 1 << offset;
+ else
+ data->cur_val &= ~(1 << offset);
+ writeb(data->cur_val, data->mmioaddr);
+ mmiowb();
+ spin_unlock_irqrestore(&txx9_iocled_lock, flags);
+}
+
+static int txx9_iocled_dir_in(struct gpio_chip *chip, unsigned int offset)
+{
+ return 0;
+}
+
+static int txx9_iocled_dir_out(struct gpio_chip *chip, unsigned int offset,
+ int value)
+{
+ txx9_iocled_set(chip, offset, value);
+ return 0;
+}
+
+void __init txx9_iocled_init(unsigned long baseaddr,
+ int basenum, unsigned int num, int lowactive,
+ const char *color, char **deftriggers)
+{
+ struct txx9_iocled_data *iocled;
+ struct platform_device *pdev;
+ int i;
+ static char *default_triggers[] __initdata = {
+ "heartbeat",
+ "disk-activity",
+ "nand-disk",
+ NULL,
+ };
+
+ if (!deftriggers)
+ deftriggers = default_triggers;
+ iocled = kzalloc(sizeof(*iocled), GFP_KERNEL);
+ if (!iocled)
+ return;
+ iocled->mmioaddr = ioremap(baseaddr, 1);
+ if (!iocled->mmioaddr)
+ goto out_free;
+ iocled->chip.get = txx9_iocled_get;
+ iocled->chip.set = txx9_iocled_set;
+ iocled->chip.direction_input = txx9_iocled_dir_in;
+ iocled->chip.direction_output = txx9_iocled_dir_out;
+ iocled->chip.label = "iocled";
+ iocled->chip.base = basenum;
+ iocled->chip.ngpio = num;
+ if (gpiochip_add_data(&iocled->chip, iocled))
+ goto out_unmap;
+ if (basenum < 0)
+ basenum = iocled->chip.base;
+
+ pdev = platform_device_alloc("leds-gpio", basenum);
+ if (!pdev)
+ goto out_gpio;
+ iocled->pdata.num_leds = num;
+ iocled->pdata.leds = iocled->leds;
+ for (i = 0; i < num; i++) {
+ struct gpio_led *led = &iocled->leds[i];
+ snprintf(iocled->names[i], sizeof(iocled->names[i]),
+ "iocled:%s:%u", color, i);
+ led->name = iocled->names[i];
+ led->gpio = basenum + i;
+ led->active_low = lowactive;
+ if (deftriggers && *deftriggers)
+ led->default_trigger = *deftriggers++;
+ }
+ pdev->dev.platform_data = &iocled->pdata;
+ if (platform_device_add(pdev))
+ goto out_pdev;
+ return;
+
+out_pdev:
+ platform_device_put(pdev);
+out_gpio:
+ gpiochip_remove(&iocled->chip);
+out_unmap:
+ iounmap(iocled->mmioaddr);
+out_free:
+ kfree(iocled);
+}
+#else /* CONFIG_LEDS_GPIO */
+void __init txx9_iocled_init(unsigned long baseaddr,
+ int basenum, unsigned int num, int lowactive,
+ const char *color, char **deftriggers)
+{
+}
+#endif /* CONFIG_LEDS_GPIO */
+
+void __init txx9_dmac_init(int id, unsigned long baseaddr, int irq,
+ const struct txx9dmac_platform_data *pdata)
+{
+#if IS_ENABLED(CONFIG_TXX9_DMAC)
+ struct resource res[] = {
+ {
+ .start = baseaddr,
+ .end = baseaddr + 0x800 - 1,
+ .flags = IORESOURCE_MEM,
+#ifndef CONFIG_MACH_TX49XX
+ }, {
+ .start = irq,
+ .flags = IORESOURCE_IRQ,
+#endif
+ }
+ };
+#ifdef CONFIG_MACH_TX49XX
+ struct resource chan_res[] = {
+ {
+ .flags = IORESOURCE_IRQ,
+ }
+ };
+#endif
+ struct platform_device *pdev = platform_device_alloc("txx9dmac", id);
+ struct txx9dmac_chan_platform_data cpdata;
+ int i;
+
+ if (!pdev ||
+ platform_device_add_resources(pdev, res, ARRAY_SIZE(res)) ||
+ platform_device_add_data(pdev, pdata, sizeof(*pdata)) ||
+ platform_device_add(pdev)) {
+ platform_device_put(pdev);
+ return;
+ }
+ memset(&cpdata, 0, sizeof(cpdata));
+ cpdata.dmac_dev = pdev;
+ for (i = 0; i < TXX9_DMA_MAX_NR_CHANNELS; i++) {
+#ifdef CONFIG_MACH_TX49XX
+ chan_res[0].start = irq + i;
+#endif
+ pdev = platform_device_alloc("txx9dmac-chan",
+ id * TXX9_DMA_MAX_NR_CHANNELS + i);
+ if (!pdev ||
+#ifdef CONFIG_MACH_TX49XX
+ platform_device_add_resources(pdev, chan_res,
+ ARRAY_SIZE(chan_res)) ||
+#endif
+ platform_device_add_data(pdev, &cpdata, sizeof(cpdata)) ||
+ platform_device_add(pdev))
+ platform_device_put(pdev);
+ }
+#endif
+}
+
+void __init txx9_aclc_init(unsigned long baseaddr, int irq,
+ unsigned int dmac_id,
+ unsigned int dma_chan_out,
+ unsigned int dma_chan_in)
+{
+#if IS_ENABLED(CONFIG_SND_SOC_TXX9ACLC)
+ unsigned int dma_base = dmac_id * TXX9_DMA_MAX_NR_CHANNELS;
+ struct resource res[] = {
+ {
+ .start = baseaddr,
+ .end = baseaddr + 0x100 - 1,
+ .flags = IORESOURCE_MEM,
+ }, {
+ .start = irq,
+ .flags = IORESOURCE_IRQ,
+ }, {
+ .name = "txx9dmac-chan",
+ .start = dma_base + dma_chan_out,
+ .flags = IORESOURCE_DMA,
+ }, {
+ .name = "txx9dmac-chan",
+ .start = dma_base + dma_chan_in,
+ .flags = IORESOURCE_DMA,
+ }
+ };
+ struct platform_device *pdev =
+ platform_device_alloc("txx9aclc-ac97", -1);
+
+ if (!pdev ||
+ platform_device_add_resources(pdev, res, ARRAY_SIZE(res)) ||
+ platform_device_add(pdev))
+ platform_device_put(pdev);
+#endif
+}
+
+static struct bus_type txx9_sramc_subsys = {
+ .name = "txx9_sram",
+ .dev_name = "txx9_sram",
+};
+
+struct txx9_sramc_dev {
+ struct device dev;
+ struct bin_attribute bindata_attr;
+ void __iomem *base;
+};
+
+static ssize_t txx9_sram_read(struct file *filp, struct kobject *kobj,
+ struct bin_attribute *bin_attr,
+ char *buf, loff_t pos, size_t size)
+{
+ struct txx9_sramc_dev *dev = bin_attr->private;
+ size_t ramsize = bin_attr->size;
+
+ if (pos >= ramsize)
+ return 0;
+ if (pos + size > ramsize)
+ size = ramsize - pos;
+ memcpy_fromio(buf, dev->base + pos, size);
+ return size;
+}
+
+static ssize_t txx9_sram_write(struct file *filp, struct kobject *kobj,
+ struct bin_attribute *bin_attr,
+ char *buf, loff_t pos, size_t size)
+{
+ struct txx9_sramc_dev *dev = bin_attr->private;
+ size_t ramsize = bin_attr->size;
+
+ if (pos >= ramsize)
+ return 0;
+ if (pos + size > ramsize)
+ size = ramsize - pos;
+ memcpy_toio(dev->base + pos, buf, size);
+ return size;
+}
+
+static void txx9_device_release(struct device *dev)
+{
+ struct txx9_sramc_dev *tdev;
+
+ tdev = container_of(dev, struct txx9_sramc_dev, dev);
+ kfree(tdev);
+}
+
+void __init txx9_sramc_init(struct resource *r)
+{
+ struct txx9_sramc_dev *dev;
+ size_t size;
+ int err;
+
+ err = subsys_system_register(&txx9_sramc_subsys, NULL);
+ if (err)
+ return;
+ dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+ if (!dev)
+ return;
+ size = resource_size(r);
+ dev->base = ioremap(r->start, size);
+ if (!dev->base) {
+ kfree(dev);
+ return;
+ }
+ dev->dev.release = &txx9_device_release;
+ dev->dev.bus = &txx9_sramc_subsys;
+ sysfs_bin_attr_init(&dev->bindata_attr);
+ dev->bindata_attr.attr.name = "bindata";
+ dev->bindata_attr.attr.mode = S_IRUSR | S_IWUSR;
+ dev->bindata_attr.read = txx9_sram_read;
+ dev->bindata_attr.write = txx9_sram_write;
+ dev->bindata_attr.size = size;
+ dev->bindata_attr.private = dev;
+ err = device_register(&dev->dev);
+ if (err)
+ goto exit_put;
+ err = sysfs_create_bin_file(&dev->dev.kobj, &dev->bindata_attr);
+ if (err) {
+ iounmap(dev->base);
+ device_unregister(&dev->dev);
+ }
+ return;
+exit_put:
+ iounmap(dev->base);
+ put_device(&dev->dev);
+}
diff --git a/arch/mips/txx9/generic/setup_tx3927.c b/arch/mips/txx9/generic/setup_tx3927.c
new file mode 100644
index 000000000..33f7a7253
--- /dev/null
+++ b/arch/mips/txx9/generic/setup_tx3927.c
@@ -0,0 +1,136 @@
+/*
+ * TX3927 setup routines
+ * Based on linux/arch/mips/txx9/jmr3927/setup.c
+ *
+ * Copyright 2001 MontaVista Software Inc.
+ * Copyright (C) 2000-2001 Toshiba Corporation
+ * Copyright (C) 2007 Ralf Baechle (ralf@linux-mips.org)
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/init.h>
+#include <linux/ioport.h>
+#include <linux/delay.h>
+#include <linux/param.h>
+#include <linux/io.h>
+#include <linux/mtd/physmap.h>
+#include <asm/mipsregs.h>
+#include <asm/txx9irq.h>
+#include <asm/txx9tmr.h>
+#include <asm/txx9pio.h>
+#include <asm/txx9/generic.h>
+#include <asm/txx9/tx3927.h>
+
+void __init tx3927_wdt_init(void)
+{
+ txx9_wdt_init(TX3927_TMR_REG(2));
+}
+
+void __init tx3927_setup(void)
+{
+ int i;
+ unsigned int conf;
+
+ txx9_reg_res_init(TX3927_REV_PCODE(), TX3927_REG_BASE,
+ TX3927_REG_SIZE);
+
+ /* SDRAMC,ROMC are configured by PROM */
+ for (i = 0; i < 8; i++) {
+ if (!(tx3927_romcptr->cr[i] & 0x8))
+ continue; /* disabled */
+ txx9_ce_res[i].start = (unsigned long)TX3927_ROMC_BA(i);
+ txx9_ce_res[i].end =
+ txx9_ce_res[i].start + TX3927_ROMC_SIZE(i) - 1;
+ request_resource(&iomem_resource, &txx9_ce_res[i]);
+ }
+
+ /* clocks */
+ txx9_gbus_clock = txx9_cpu_clock / 2;
+ /* change default value to udelay/mdelay take reasonable time */
+ loops_per_jiffy = txx9_cpu_clock / HZ / 2;
+
+ /* CCFG */
+ /* enable Timeout BusError */
+ if (txx9_ccfg_toeon)
+ tx3927_ccfgptr->ccfg |= TX3927_CCFG_TOE;
+
+ /* clear BusErrorOnWrite flag */
+ tx3927_ccfgptr->ccfg &= ~TX3927_CCFG_BEOW;
+ if (read_c0_conf() & TX39_CONF_WBON)
+ /* Disable PCI snoop */
+ tx3927_ccfgptr->ccfg &= ~TX3927_CCFG_PSNP;
+ else
+ /* Enable PCI SNOOP - with write through only */
+ tx3927_ccfgptr->ccfg |= TX3927_CCFG_PSNP;
+ /* do reset on watchdog */
+ tx3927_ccfgptr->ccfg |= TX3927_CCFG_WR;
+
+ pr_info("TX3927 -- CRIR:%08lx CCFG:%08lx PCFG:%08lx\n",
+ tx3927_ccfgptr->crir, tx3927_ccfgptr->ccfg,
+ tx3927_ccfgptr->pcfg);
+
+ /* TMR */
+ for (i = 0; i < TX3927_NR_TMR; i++)
+ txx9_tmr_init(TX3927_TMR_REG(i));
+
+ /* DMA */
+ tx3927_dmaptr->mcr = 0;
+ for (i = 0; i < ARRAY_SIZE(tx3927_dmaptr->ch); i++) {
+ /* reset channel */
+ tx3927_dmaptr->ch[i].ccr = TX3927_DMA_CCR_CHRST;
+ tx3927_dmaptr->ch[i].ccr = 0;
+ }
+ /* enable DMA */
+#ifdef __BIG_ENDIAN
+ tx3927_dmaptr->mcr = TX3927_DMA_MCR_MSTEN;
+#else
+ tx3927_dmaptr->mcr = TX3927_DMA_MCR_MSTEN | TX3927_DMA_MCR_LE;
+#endif
+
+ /* PIO */
+ __raw_writel(0, &tx3927_pioptr->maskcpu);
+ __raw_writel(0, &tx3927_pioptr->maskext);
+
+ conf = read_c0_conf();
+ if (conf & TX39_CONF_DCE) {
+ if (!(conf & TX39_CONF_WBON))
+ pr_info("TX3927 D-Cache WriteThrough.\n");
+ else if (!(conf & TX39_CONF_CWFON))
+ pr_info("TX3927 D-Cache WriteBack.\n");
+ else
+ pr_info("TX3927 D-Cache WriteBack (CWF) .\n");
+ }
+}
+
+void __init tx3927_time_init(unsigned int evt_tmrnr, unsigned int src_tmrnr)
+{
+ txx9_clockevent_init(TX3927_TMR_REG(evt_tmrnr),
+ TXX9_IRQ_BASE + TX3927_IR_TMR(evt_tmrnr),
+ TXX9_IMCLK);
+ txx9_clocksource_init(TX3927_TMR_REG(src_tmrnr), TXX9_IMCLK);
+}
+
+void __init tx3927_sio_init(unsigned int sclk, unsigned int cts_mask)
+{
+ int i;
+
+ for (i = 0; i < 2; i++)
+ txx9_sio_init(TX3927_SIO_REG(i),
+ TXX9_IRQ_BASE + TX3927_IR_SIO(i),
+ i, sclk, (1 << i) & cts_mask);
+}
+
+void __init tx3927_mtd_init(int ch)
+{
+ struct physmap_flash_data pdata = {
+ .width = TX3927_ROMC_WIDTH(ch) / 8,
+ };
+ unsigned long start = txx9_ce_res[ch].start;
+ unsigned long size = txx9_ce_res[ch].end - start + 1;
+
+ if (!(tx3927_romcptr->cr[ch] & 0x8))
+ return; /* disabled */
+ txx9_physmap_flash_init(ch, start, size, &pdata);
+}
diff --git a/arch/mips/txx9/generic/setup_tx4927.c b/arch/mips/txx9/generic/setup_tx4927.c
new file mode 100644
index 000000000..46e9c4101
--- /dev/null
+++ b/arch/mips/txx9/generic/setup_tx4927.c
@@ -0,0 +1,337 @@
+/*
+ * TX4927 setup routines
+ * Based on linux/arch/mips/txx9/rbtx4938/setup.c,
+ * and RBTX49xx patch from CELF patch archive.
+ *
+ * 2003-2005 (c) MontaVista Software, Inc.
+ * (C) Copyright TOSHIBA CORPORATION 2000-2001, 2004-2007
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/init.h>
+#include <linux/ioport.h>
+#include <linux/delay.h>
+#include <linux/param.h>
+#include <linux/ptrace.h>
+#include <linux/mtd/physmap.h>
+#include <asm/reboot.h>
+#include <asm/traps.h>
+#include <asm/txx9irq.h>
+#include <asm/txx9tmr.h>
+#include <asm/txx9pio.h>
+#include <asm/txx9/generic.h>
+#include <asm/txx9/dmac.h>
+#include <asm/txx9/tx4927.h>
+
+static void __init tx4927_wdr_init(void)
+{
+ /* report watchdog reset status */
+ if (____raw_readq(&tx4927_ccfgptr->ccfg) & TX4927_CCFG_WDRST)
+ pr_warn("Watchdog reset detected at 0x%lx\n",
+ read_c0_errorepc());
+ /* clear WatchDogReset (W1C) */
+ tx4927_ccfg_set(TX4927_CCFG_WDRST);
+ /* do reset on watchdog */
+ tx4927_ccfg_set(TX4927_CCFG_WR);
+}
+
+void __init tx4927_wdt_init(void)
+{
+ txx9_wdt_init(TX4927_TMR_REG(2) & 0xfffffffffULL);
+}
+
+static void tx4927_machine_restart(char *command)
+{
+ local_irq_disable();
+ pr_emerg("Rebooting (with %s watchdog reset)...\n",
+ (____raw_readq(&tx4927_ccfgptr->ccfg) & TX4927_CCFG_WDREXEN) ?
+ "external" : "internal");
+ /* clear watchdog status */
+ tx4927_ccfg_set(TX4927_CCFG_WDRST); /* W1C */
+ txx9_wdt_now(TX4927_TMR_REG(2) & 0xfffffffffULL);
+ while (!(____raw_readq(&tx4927_ccfgptr->ccfg) & TX4927_CCFG_WDRST))
+ ;
+ mdelay(10);
+ if (____raw_readq(&tx4927_ccfgptr->ccfg) & TX4927_CCFG_WDREXEN) {
+ pr_emerg("Rebooting (with internal watchdog reset)...\n");
+ /* External WDRST failed. Do internal watchdog reset */
+ tx4927_ccfg_clear(TX4927_CCFG_WDREXEN);
+ }
+ /* fallback */
+ (*_machine_halt)();
+}
+
+void show_registers(struct pt_regs *regs);
+static int tx4927_be_handler(struct pt_regs *regs, int is_fixup)
+{
+ int data = regs->cp0_cause & 4;
+ console_verbose();
+ pr_err("%cBE exception at %#lx\n", data ? 'D' : 'I', regs->cp0_epc);
+ pr_err("ccfg:%llx, toea:%llx\n",
+ (unsigned long long)____raw_readq(&tx4927_ccfgptr->ccfg),
+ (unsigned long long)____raw_readq(&tx4927_ccfgptr->toea));
+#ifdef CONFIG_PCI
+ tx4927_report_pcic_status();
+#endif
+ show_registers(regs);
+ panic("BusError!");
+}
+static void __init tx4927_be_init(void)
+{
+ board_be_handler = tx4927_be_handler;
+}
+
+static struct resource tx4927_sdram_resource[4];
+
+void __init tx4927_setup(void)
+{
+ int i;
+ __u32 divmode;
+ unsigned int cpuclk = 0;
+ u64 ccfg;
+
+ txx9_reg_res_init(TX4927_REV_PCODE(), TX4927_REG_BASE,
+ TX4927_REG_SIZE);
+ set_c0_config(TX49_CONF_CWFON);
+
+ /* SDRAMC,EBUSC are configured by PROM */
+ for (i = 0; i < 8; i++) {
+ if (!(TX4927_EBUSC_CR(i) & 0x8))
+ continue; /* disabled */
+ txx9_ce_res[i].start = (unsigned long)TX4927_EBUSC_BA(i);
+ txx9_ce_res[i].end =
+ txx9_ce_res[i].start + TX4927_EBUSC_SIZE(i) - 1;
+ request_resource(&iomem_resource, &txx9_ce_res[i]);
+ }
+
+ /* clocks */
+ ccfg = ____raw_readq(&tx4927_ccfgptr->ccfg);
+ if (txx9_master_clock) {
+ /* calculate gbus_clock and cpu_clock from master_clock */
+ divmode = (__u32)ccfg & TX4927_CCFG_DIVMODE_MASK;
+ switch (divmode) {
+ case TX4927_CCFG_DIVMODE_8:
+ case TX4927_CCFG_DIVMODE_10:
+ case TX4927_CCFG_DIVMODE_12:
+ case TX4927_CCFG_DIVMODE_16:
+ txx9_gbus_clock = txx9_master_clock * 4; break;
+ default:
+ txx9_gbus_clock = txx9_master_clock;
+ }
+ switch (divmode) {
+ case TX4927_CCFG_DIVMODE_2:
+ case TX4927_CCFG_DIVMODE_8:
+ cpuclk = txx9_gbus_clock * 2; break;
+ case TX4927_CCFG_DIVMODE_2_5:
+ case TX4927_CCFG_DIVMODE_10:
+ cpuclk = txx9_gbus_clock * 5 / 2; break;
+ case TX4927_CCFG_DIVMODE_3:
+ case TX4927_CCFG_DIVMODE_12:
+ cpuclk = txx9_gbus_clock * 3; break;
+ case TX4927_CCFG_DIVMODE_4:
+ case TX4927_CCFG_DIVMODE_16:
+ cpuclk = txx9_gbus_clock * 4; break;
+ }
+ txx9_cpu_clock = cpuclk;
+ } else {
+ if (txx9_cpu_clock == 0)
+ txx9_cpu_clock = 200000000; /* 200MHz */
+ /* calculate gbus_clock and master_clock from cpu_clock */
+ cpuclk = txx9_cpu_clock;
+ divmode = (__u32)ccfg & TX4927_CCFG_DIVMODE_MASK;
+ switch (divmode) {
+ case TX4927_CCFG_DIVMODE_2:
+ case TX4927_CCFG_DIVMODE_8:
+ txx9_gbus_clock = cpuclk / 2; break;
+ case TX4927_CCFG_DIVMODE_2_5:
+ case TX4927_CCFG_DIVMODE_10:
+ txx9_gbus_clock = cpuclk * 2 / 5; break;
+ case TX4927_CCFG_DIVMODE_3:
+ case TX4927_CCFG_DIVMODE_12:
+ txx9_gbus_clock = cpuclk / 3; break;
+ case TX4927_CCFG_DIVMODE_4:
+ case TX4927_CCFG_DIVMODE_16:
+ txx9_gbus_clock = cpuclk / 4; break;
+ }
+ switch (divmode) {
+ case TX4927_CCFG_DIVMODE_8:
+ case TX4927_CCFG_DIVMODE_10:
+ case TX4927_CCFG_DIVMODE_12:
+ case TX4927_CCFG_DIVMODE_16:
+ txx9_master_clock = txx9_gbus_clock / 4; break;
+ default:
+ txx9_master_clock = txx9_gbus_clock;
+ }
+ }
+ /* change default value to udelay/mdelay take reasonable time */
+ loops_per_jiffy = txx9_cpu_clock / HZ / 2;
+
+ /* CCFG */
+ tx4927_wdr_init();
+ /* clear BusErrorOnWrite flag (W1C) */
+ tx4927_ccfg_set(TX4927_CCFG_BEOW);
+ /* enable Timeout BusError */
+ if (txx9_ccfg_toeon)
+ tx4927_ccfg_set(TX4927_CCFG_TOE);
+
+ /* DMA selection */
+ txx9_clear64(&tx4927_ccfgptr->pcfg, TX4927_PCFG_DMASEL_ALL);
+
+ /* Use external clock for external arbiter */
+ if (!(____raw_readq(&tx4927_ccfgptr->ccfg) & TX4927_CCFG_PCIARB))
+ txx9_clear64(&tx4927_ccfgptr->pcfg, TX4927_PCFG_PCICLKEN_ALL);
+
+ pr_info("%s -- %dMHz(M%dMHz) CRIR:%08x CCFG:%llx PCFG:%llx\n",
+ txx9_pcode_str, (cpuclk + 500000) / 1000000,
+ (txx9_master_clock + 500000) / 1000000,
+ (__u32)____raw_readq(&tx4927_ccfgptr->crir),
+ ____raw_readq(&tx4927_ccfgptr->ccfg),
+ ____raw_readq(&tx4927_ccfgptr->pcfg));
+
+ pr_info("%s SDRAMC --", txx9_pcode_str);
+ for (i = 0; i < 4; i++) {
+ __u64 cr = TX4927_SDRAMC_CR(i);
+ unsigned long base, size;
+ if (!((__u32)cr & 0x00000400))
+ continue; /* disabled */
+ base = (unsigned long)(cr >> 49) << 21;
+ size = (((unsigned long)(cr >> 33) & 0x7fff) + 1) << 21;
+ pr_cont(" CR%d:%016llx", i, cr);
+ tx4927_sdram_resource[i].name = "SDRAM";
+ tx4927_sdram_resource[i].start = base;
+ tx4927_sdram_resource[i].end = base + size - 1;
+ tx4927_sdram_resource[i].flags = IORESOURCE_MEM;
+ request_resource(&iomem_resource, &tx4927_sdram_resource[i]);
+ }
+ pr_cont(" TR:%09llx\n", ____raw_readq(&tx4927_sdramcptr->tr));
+
+ /* TMR */
+ /* disable all timers */
+ for (i = 0; i < TX4927_NR_TMR; i++)
+ txx9_tmr_init(TX4927_TMR_REG(i) & 0xfffffffffULL);
+
+ /* PIO */
+ __raw_writel(0, &tx4927_pioptr->maskcpu);
+ __raw_writel(0, &tx4927_pioptr->maskext);
+
+ _machine_restart = tx4927_machine_restart;
+ board_be_init = tx4927_be_init;
+}
+
+void __init tx4927_time_init(unsigned int tmrnr)
+{
+ if (____raw_readq(&tx4927_ccfgptr->ccfg) & TX4927_CCFG_TINTDIS)
+ txx9_clockevent_init(TX4927_TMR_REG(tmrnr) & 0xfffffffffULL,
+ TXX9_IRQ_BASE + TX4927_IR_TMR(tmrnr),
+ TXX9_IMCLK);
+}
+
+void __init tx4927_sio_init(unsigned int sclk, unsigned int cts_mask)
+{
+ int i;
+
+ for (i = 0; i < 2; i++)
+ txx9_sio_init(TX4927_SIO_REG(i) & 0xfffffffffULL,
+ TXX9_IRQ_BASE + TX4927_IR_SIO(i),
+ i, sclk, (1 << i) & cts_mask);
+}
+
+void __init tx4927_mtd_init(int ch)
+{
+ struct physmap_flash_data pdata = {
+ .width = TX4927_EBUSC_WIDTH(ch) / 8,
+ };
+ unsigned long start = txx9_ce_res[ch].start;
+ unsigned long size = txx9_ce_res[ch].end - start + 1;
+
+ if (!(TX4927_EBUSC_CR(ch) & 0x8))
+ return; /* disabled */
+ txx9_physmap_flash_init(ch, start, size, &pdata);
+}
+
+void __init tx4927_dmac_init(int memcpy_chan)
+{
+ struct txx9dmac_platform_data plat_data = {
+ .memcpy_chan = memcpy_chan,
+ .have_64bit_regs = true,
+ };
+
+ txx9_dmac_init(0, TX4927_DMA_REG & 0xfffffffffULL,
+ TXX9_IRQ_BASE + TX4927_IR_DMA(0), &plat_data);
+}
+
+void __init tx4927_aclc_init(unsigned int dma_chan_out,
+ unsigned int dma_chan_in)
+{
+ u64 pcfg = __raw_readq(&tx4927_ccfgptr->pcfg);
+ __u64 dmasel_mask = 0, dmasel = 0;
+ unsigned long flags;
+
+ if (!(pcfg & TX4927_PCFG_SEL2))
+ return;
+ /* setup DMASEL (playback:ACLC ch0, capture:ACLC ch1) */
+ switch (dma_chan_out) {
+ case 0:
+ dmasel_mask |= TX4927_PCFG_DMASEL0_MASK;
+ dmasel |= TX4927_PCFG_DMASEL0_ACL0;
+ break;
+ case 2:
+ dmasel_mask |= TX4927_PCFG_DMASEL2_MASK;
+ dmasel |= TX4927_PCFG_DMASEL2_ACL0;
+ break;
+ default:
+ return;
+ }
+ switch (dma_chan_in) {
+ case 1:
+ dmasel_mask |= TX4927_PCFG_DMASEL1_MASK;
+ dmasel |= TX4927_PCFG_DMASEL1_ACL1;
+ break;
+ case 3:
+ dmasel_mask |= TX4927_PCFG_DMASEL3_MASK;
+ dmasel |= TX4927_PCFG_DMASEL3_ACL1;
+ break;
+ default:
+ return;
+ }
+ local_irq_save(flags);
+ txx9_clear64(&tx4927_ccfgptr->pcfg, dmasel_mask);
+ txx9_set64(&tx4927_ccfgptr->pcfg, dmasel);
+ local_irq_restore(flags);
+ txx9_aclc_init(TX4927_ACLC_REG & 0xfffffffffULL,
+ TXX9_IRQ_BASE + TX4927_IR_ACLC,
+ 0, dma_chan_out, dma_chan_in);
+}
+
+static void __init tx4927_stop_unused_modules(void)
+{
+ __u64 pcfg, rst = 0, ckd = 0;
+ char buf[128];
+
+ buf[0] = '\0';
+ local_irq_disable();
+ pcfg = ____raw_readq(&tx4927_ccfgptr->pcfg);
+ if (!(pcfg & TX4927_PCFG_SEL2)) {
+ rst |= TX4927_CLKCTR_ACLRST;
+ ckd |= TX4927_CLKCTR_ACLCKD;
+ strcat(buf, " ACLC");
+ }
+ if (rst | ckd) {
+ txx9_set64(&tx4927_ccfgptr->clkctr, rst);
+ txx9_set64(&tx4927_ccfgptr->clkctr, ckd);
+ }
+ local_irq_enable();
+ if (buf[0])
+ pr_info("%s: stop%s\n", txx9_pcode_str, buf);
+}
+
+static int __init tx4927_late_init(void)
+{
+ if (txx9_pcode != 0x4927)
+ return -ENODEV;
+ tx4927_stop_unused_modules();
+ return 0;
+}
+late_initcall(tx4927_late_init);
diff --git a/arch/mips/txx9/generic/setup_tx4938.c b/arch/mips/txx9/generic/setup_tx4938.c
new file mode 100644
index 000000000..17395d5d1
--- /dev/null
+++ b/arch/mips/txx9/generic/setup_tx4938.c
@@ -0,0 +1,485 @@
+/*
+ * TX4938/4937 setup routines
+ * Based on linux/arch/mips/txx9/rbtx4938/setup.c,
+ * and RBTX49xx patch from CELF patch archive.
+ *
+ * 2003-2005 (c) MontaVista Software, Inc.
+ * (C) Copyright TOSHIBA CORPORATION 2000-2001, 2004-2007
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/init.h>
+#include <linux/ioport.h>
+#include <linux/delay.h>
+#include <linux/param.h>
+#include <linux/ptrace.h>
+#include <linux/mtd/physmap.h>
+#include <linux/platform_device.h>
+#include <linux/platform_data/txx9/ndfmc.h>
+#include <asm/reboot.h>
+#include <asm/traps.h>
+#include <asm/txx9irq.h>
+#include <asm/txx9tmr.h>
+#include <asm/txx9pio.h>
+#include <asm/txx9/generic.h>
+#include <asm/txx9/dmac.h>
+#include <asm/txx9/tx4938.h>
+
+static void __init tx4938_wdr_init(void)
+{
+ /* report watchdog reset status */
+ if (____raw_readq(&tx4938_ccfgptr->ccfg) & TX4938_CCFG_WDRST)
+ pr_warn("Watchdog reset detected at 0x%lx\n",
+ read_c0_errorepc());
+ /* clear WatchDogReset (W1C) */
+ tx4938_ccfg_set(TX4938_CCFG_WDRST);
+ /* do reset on watchdog */
+ tx4938_ccfg_set(TX4938_CCFG_WR);
+}
+
+void __init tx4938_wdt_init(void)
+{
+ txx9_wdt_init(TX4938_TMR_REG(2) & 0xfffffffffULL);
+}
+
+static void tx4938_machine_restart(char *command)
+{
+ local_irq_disable();
+ pr_emerg("Rebooting (with %s watchdog reset)...\n",
+ (____raw_readq(&tx4938_ccfgptr->ccfg) & TX4938_CCFG_WDREXEN) ?
+ "external" : "internal");
+ /* clear watchdog status */
+ tx4938_ccfg_set(TX4938_CCFG_WDRST); /* W1C */
+ txx9_wdt_now(TX4938_TMR_REG(2) & 0xfffffffffULL);
+ while (!(____raw_readq(&tx4938_ccfgptr->ccfg) & TX4938_CCFG_WDRST))
+ ;
+ mdelay(10);
+ if (____raw_readq(&tx4938_ccfgptr->ccfg) & TX4938_CCFG_WDREXEN) {
+ pr_emerg("Rebooting (with internal watchdog reset)...\n");
+ /* External WDRST failed. Do internal watchdog reset */
+ tx4938_ccfg_clear(TX4938_CCFG_WDREXEN);
+ }
+ /* fallback */
+ (*_machine_halt)();
+}
+
+void show_registers(struct pt_regs *regs);
+static int tx4938_be_handler(struct pt_regs *regs, int is_fixup)
+{
+ int data = regs->cp0_cause & 4;
+ console_verbose();
+ pr_err("%cBE exception at %#lx\n", data ? 'D' : 'I', regs->cp0_epc);
+ pr_err("ccfg:%llx, toea:%llx\n",
+ (unsigned long long)____raw_readq(&tx4938_ccfgptr->ccfg),
+ (unsigned long long)____raw_readq(&tx4938_ccfgptr->toea));
+#ifdef CONFIG_PCI
+ tx4927_report_pcic_status();
+#endif
+ show_registers(regs);
+ panic("BusError!");
+}
+static void __init tx4938_be_init(void)
+{
+ board_be_handler = tx4938_be_handler;
+}
+
+static struct resource tx4938_sdram_resource[4];
+static struct resource tx4938_sram_resource;
+
+#define TX4938_SRAM_SIZE 0x800
+
+void __init tx4938_setup(void)
+{
+ int i;
+ __u32 divmode;
+ unsigned int cpuclk = 0;
+ u64 ccfg;
+
+ txx9_reg_res_init(TX4938_REV_PCODE(), TX4938_REG_BASE,
+ TX4938_REG_SIZE);
+ set_c0_config(TX49_CONF_CWFON);
+
+ /* SDRAMC,EBUSC are configured by PROM */
+ for (i = 0; i < 8; i++) {
+ if (!(TX4938_EBUSC_CR(i) & 0x8))
+ continue; /* disabled */
+ txx9_ce_res[i].start = (unsigned long)TX4938_EBUSC_BA(i);
+ txx9_ce_res[i].end =
+ txx9_ce_res[i].start + TX4938_EBUSC_SIZE(i) - 1;
+ request_resource(&iomem_resource, &txx9_ce_res[i]);
+ }
+
+ /* clocks */
+ ccfg = ____raw_readq(&tx4938_ccfgptr->ccfg);
+ if (txx9_master_clock) {
+ /* calculate gbus_clock and cpu_clock from master_clock */
+ divmode = (__u32)ccfg & TX4938_CCFG_DIVMODE_MASK;
+ switch (divmode) {
+ case TX4938_CCFG_DIVMODE_8:
+ case TX4938_CCFG_DIVMODE_10:
+ case TX4938_CCFG_DIVMODE_12:
+ case TX4938_CCFG_DIVMODE_16:
+ case TX4938_CCFG_DIVMODE_18:
+ txx9_gbus_clock = txx9_master_clock * 4; break;
+ default:
+ txx9_gbus_clock = txx9_master_clock;
+ }
+ switch (divmode) {
+ case TX4938_CCFG_DIVMODE_2:
+ case TX4938_CCFG_DIVMODE_8:
+ cpuclk = txx9_gbus_clock * 2; break;
+ case TX4938_CCFG_DIVMODE_2_5:
+ case TX4938_CCFG_DIVMODE_10:
+ cpuclk = txx9_gbus_clock * 5 / 2; break;
+ case TX4938_CCFG_DIVMODE_3:
+ case TX4938_CCFG_DIVMODE_12:
+ cpuclk = txx9_gbus_clock * 3; break;
+ case TX4938_CCFG_DIVMODE_4:
+ case TX4938_CCFG_DIVMODE_16:
+ cpuclk = txx9_gbus_clock * 4; break;
+ case TX4938_CCFG_DIVMODE_4_5:
+ case TX4938_CCFG_DIVMODE_18:
+ cpuclk = txx9_gbus_clock * 9 / 2; break;
+ }
+ txx9_cpu_clock = cpuclk;
+ } else {
+ if (txx9_cpu_clock == 0)
+ txx9_cpu_clock = 300000000; /* 300MHz */
+ /* calculate gbus_clock and master_clock from cpu_clock */
+ cpuclk = txx9_cpu_clock;
+ divmode = (__u32)ccfg & TX4938_CCFG_DIVMODE_MASK;
+ switch (divmode) {
+ case TX4938_CCFG_DIVMODE_2:
+ case TX4938_CCFG_DIVMODE_8:
+ txx9_gbus_clock = cpuclk / 2; break;
+ case TX4938_CCFG_DIVMODE_2_5:
+ case TX4938_CCFG_DIVMODE_10:
+ txx9_gbus_clock = cpuclk * 2 / 5; break;
+ case TX4938_CCFG_DIVMODE_3:
+ case TX4938_CCFG_DIVMODE_12:
+ txx9_gbus_clock = cpuclk / 3; break;
+ case TX4938_CCFG_DIVMODE_4:
+ case TX4938_CCFG_DIVMODE_16:
+ txx9_gbus_clock = cpuclk / 4; break;
+ case TX4938_CCFG_DIVMODE_4_5:
+ case TX4938_CCFG_DIVMODE_18:
+ txx9_gbus_clock = cpuclk * 2 / 9; break;
+ }
+ switch (divmode) {
+ case TX4938_CCFG_DIVMODE_8:
+ case TX4938_CCFG_DIVMODE_10:
+ case TX4938_CCFG_DIVMODE_12:
+ case TX4938_CCFG_DIVMODE_16:
+ case TX4938_CCFG_DIVMODE_18:
+ txx9_master_clock = txx9_gbus_clock / 4; break;
+ default:
+ txx9_master_clock = txx9_gbus_clock;
+ }
+ }
+ /* change default value to udelay/mdelay take reasonable time */
+ loops_per_jiffy = txx9_cpu_clock / HZ / 2;
+
+ /* CCFG */
+ tx4938_wdr_init();
+ /* clear BusErrorOnWrite flag (W1C) */
+ tx4938_ccfg_set(TX4938_CCFG_BEOW);
+ /* enable Timeout BusError */
+ if (txx9_ccfg_toeon)
+ tx4938_ccfg_set(TX4938_CCFG_TOE);
+
+ /* DMA selection */
+ txx9_clear64(&tx4938_ccfgptr->pcfg, TX4938_PCFG_DMASEL_ALL);
+
+ /* Use external clock for external arbiter */
+ if (!(____raw_readq(&tx4938_ccfgptr->ccfg) & TX4938_CCFG_PCIARB))
+ txx9_clear64(&tx4938_ccfgptr->pcfg, TX4938_PCFG_PCICLKEN_ALL);
+
+ pr_info("%s -- %dMHz(M%dMHz) CRIR:%08x CCFG:%llx PCFG:%llx\n",
+ txx9_pcode_str, (cpuclk + 500000) / 1000000,
+ (txx9_master_clock + 500000) / 1000000,
+ (__u32)____raw_readq(&tx4938_ccfgptr->crir),
+ ____raw_readq(&tx4938_ccfgptr->ccfg),
+ ____raw_readq(&tx4938_ccfgptr->pcfg));
+
+ pr_info("%s SDRAMC --", txx9_pcode_str);
+ for (i = 0; i < 4; i++) {
+ __u64 cr = TX4938_SDRAMC_CR(i);
+ unsigned long base, size;
+ if (!((__u32)cr & 0x00000400))
+ continue; /* disabled */
+ base = (unsigned long)(cr >> 49) << 21;
+ size = (((unsigned long)(cr >> 33) & 0x7fff) + 1) << 21;
+ pr_cont(" CR%d:%016llx", i, cr);
+ tx4938_sdram_resource[i].name = "SDRAM";
+ tx4938_sdram_resource[i].start = base;
+ tx4938_sdram_resource[i].end = base + size - 1;
+ tx4938_sdram_resource[i].flags = IORESOURCE_MEM;
+ request_resource(&iomem_resource, &tx4938_sdram_resource[i]);
+ }
+ pr_cont(" TR:%09llx\n", ____raw_readq(&tx4938_sdramcptr->tr));
+
+ /* SRAM */
+ if (txx9_pcode == 0x4938 && ____raw_readq(&tx4938_sramcptr->cr) & 1) {
+ unsigned int size = TX4938_SRAM_SIZE;
+ tx4938_sram_resource.name = "SRAM";
+ tx4938_sram_resource.start =
+ (____raw_readq(&tx4938_sramcptr->cr) >> (39-11))
+ & ~(size - 1);
+ tx4938_sram_resource.end =
+ tx4938_sram_resource.start + TX4938_SRAM_SIZE - 1;
+ tx4938_sram_resource.flags = IORESOURCE_MEM;
+ request_resource(&iomem_resource, &tx4938_sram_resource);
+ }
+
+ /* TMR */
+ /* disable all timers */
+ for (i = 0; i < TX4938_NR_TMR; i++)
+ txx9_tmr_init(TX4938_TMR_REG(i) & 0xfffffffffULL);
+
+ /* PIO */
+ __raw_writel(0, &tx4938_pioptr->maskcpu);
+ __raw_writel(0, &tx4938_pioptr->maskext);
+
+ if (txx9_pcode == 0x4938) {
+ __u64 pcfg = ____raw_readq(&tx4938_ccfgptr->pcfg);
+ /* set PCIC1 reset */
+ txx9_set64(&tx4938_ccfgptr->clkctr, TX4938_CLKCTR_PCIC1RST);
+ if (pcfg & (TX4938_PCFG_ETH0_SEL | TX4938_PCFG_ETH1_SEL)) {
+ mdelay(1); /* at least 128 cpu clock */
+ /* clear PCIC1 reset */
+ txx9_clear64(&tx4938_ccfgptr->clkctr,
+ TX4938_CLKCTR_PCIC1RST);
+ } else {
+ pr_info("%s: stop PCIC1\n", txx9_pcode_str);
+ /* stop PCIC1 */
+ txx9_set64(&tx4938_ccfgptr->clkctr,
+ TX4938_CLKCTR_PCIC1CKD);
+ }
+ if (!(pcfg & TX4938_PCFG_ETH0_SEL)) {
+ pr_info("%s: stop ETH0\n", txx9_pcode_str);
+ txx9_set64(&tx4938_ccfgptr->clkctr,
+ TX4938_CLKCTR_ETH0RST);
+ txx9_set64(&tx4938_ccfgptr->clkctr,
+ TX4938_CLKCTR_ETH0CKD);
+ }
+ if (!(pcfg & TX4938_PCFG_ETH1_SEL)) {
+ pr_info("%s: stop ETH1\n", txx9_pcode_str);
+ txx9_set64(&tx4938_ccfgptr->clkctr,
+ TX4938_CLKCTR_ETH1RST);
+ txx9_set64(&tx4938_ccfgptr->clkctr,
+ TX4938_CLKCTR_ETH1CKD);
+ }
+ }
+
+ _machine_restart = tx4938_machine_restart;
+ board_be_init = tx4938_be_init;
+}
+
+void __init tx4938_time_init(unsigned int tmrnr)
+{
+ if (____raw_readq(&tx4938_ccfgptr->ccfg) & TX4938_CCFG_TINTDIS)
+ txx9_clockevent_init(TX4938_TMR_REG(tmrnr) & 0xfffffffffULL,
+ TXX9_IRQ_BASE + TX4938_IR_TMR(tmrnr),
+ TXX9_IMCLK);
+}
+
+void __init tx4938_sio_init(unsigned int sclk, unsigned int cts_mask)
+{
+ int i;
+ unsigned int ch_mask = 0;
+
+ if (__raw_readq(&tx4938_ccfgptr->pcfg) & TX4938_PCFG_ETH0_SEL)
+ ch_mask |= 1 << 1; /* disable SIO1 by PCFG setting */
+ for (i = 0; i < 2; i++) {
+ if ((1 << i) & ch_mask)
+ continue;
+ txx9_sio_init(TX4938_SIO_REG(i) & 0xfffffffffULL,
+ TXX9_IRQ_BASE + TX4938_IR_SIO(i),
+ i, sclk, (1 << i) & cts_mask);
+ }
+}
+
+void __init tx4938_spi_init(int busid)
+{
+ txx9_spi_init(busid, TX4938_SPI_REG & 0xfffffffffULL,
+ TXX9_IRQ_BASE + TX4938_IR_SPI);
+}
+
+void __init tx4938_ethaddr_init(unsigned char *addr0, unsigned char *addr1)
+{
+ u64 pcfg = __raw_readq(&tx4938_ccfgptr->pcfg);
+
+ if (addr0 && (pcfg & TX4938_PCFG_ETH0_SEL))
+ txx9_ethaddr_init(TXX9_IRQ_BASE + TX4938_IR_ETH0, addr0);
+ if (addr1 && (pcfg & TX4938_PCFG_ETH1_SEL))
+ txx9_ethaddr_init(TXX9_IRQ_BASE + TX4938_IR_ETH1, addr1);
+}
+
+void __init tx4938_mtd_init(int ch)
+{
+ struct physmap_flash_data pdata = {
+ .width = TX4938_EBUSC_WIDTH(ch) / 8,
+ };
+ unsigned long start = txx9_ce_res[ch].start;
+ unsigned long size = txx9_ce_res[ch].end - start + 1;
+
+ if (!(TX4938_EBUSC_CR(ch) & 0x8))
+ return; /* disabled */
+ txx9_physmap_flash_init(ch, start, size, &pdata);
+}
+
+void __init tx4938_ata_init(unsigned int irq, unsigned int shift, int tune)
+{
+ struct platform_device *pdev;
+ struct resource res[] = {
+ {
+ /* .start and .end are filled in later */
+ .flags = IORESOURCE_MEM,
+ }, {
+ .start = irq,
+ .flags = IORESOURCE_IRQ,
+ },
+ };
+ struct tx4938ide_platform_info pdata = {
+ .ioport_shift = shift,
+ /*
+ * The IDE driver should not change bus timings if other ISA
+ * devices existed.
+ */
+ .gbus_clock = tune ? txx9_gbus_clock : 0,
+ };
+ u64 ebccr;
+ int i;
+
+ if ((__raw_readq(&tx4938_ccfgptr->pcfg) &
+ (TX4938_PCFG_ATA_SEL | TX4938_PCFG_NDF_SEL))
+ != TX4938_PCFG_ATA_SEL)
+ return;
+ for (i = 0; i < 8; i++) {
+ /* check EBCCRn.ISA, EBCCRn.BSZ, EBCCRn.ME */
+ ebccr = __raw_readq(&tx4938_ebuscptr->cr[i]);
+ if ((ebccr & 0x00f00008) == 0x00e00008)
+ break;
+ }
+ if (i == 8)
+ return;
+ pdata.ebus_ch = i;
+ res[0].start = ((ebccr >> 48) << 20) + 0x10000;
+ res[0].end = res[0].start + 0x20000 - 1;
+ pdev = platform_device_alloc("tx4938ide", -1);
+ if (!pdev ||
+ platform_device_add_resources(pdev, res, ARRAY_SIZE(res)) ||
+ platform_device_add_data(pdev, &pdata, sizeof(pdata)) ||
+ platform_device_add(pdev))
+ platform_device_put(pdev);
+}
+
+void __init tx4938_ndfmc_init(unsigned int hold, unsigned int spw)
+{
+ struct txx9ndfmc_platform_data plat_data = {
+ .shift = 1,
+ .gbus_clock = txx9_gbus_clock,
+ .hold = hold,
+ .spw = spw,
+ .ch_mask = 1,
+ };
+ unsigned long baseaddr = TX4938_NDFMC_REG & 0xfffffffffULL;
+
+#ifdef __BIG_ENDIAN
+ baseaddr += 4;
+#endif
+ if ((__raw_readq(&tx4938_ccfgptr->pcfg) &
+ (TX4938_PCFG_ATA_SEL|TX4938_PCFG_ISA_SEL|TX4938_PCFG_NDF_SEL)) ==
+ TX4938_PCFG_NDF_SEL)
+ txx9_ndfmc_init(baseaddr, &plat_data);
+}
+
+void __init tx4938_dmac_init(int memcpy_chan0, int memcpy_chan1)
+{
+ struct txx9dmac_platform_data plat_data = {
+ .have_64bit_regs = true,
+ };
+ int i;
+
+ for (i = 0; i < 2; i++) {
+ plat_data.memcpy_chan = i ? memcpy_chan1 : memcpy_chan0;
+ txx9_dmac_init(i, TX4938_DMA_REG(i) & 0xfffffffffULL,
+ TXX9_IRQ_BASE + TX4938_IR_DMA(i, 0),
+ &plat_data);
+ }
+}
+
+void __init tx4938_aclc_init(void)
+{
+ u64 pcfg = __raw_readq(&tx4938_ccfgptr->pcfg);
+
+ if ((pcfg & TX4938_PCFG_SEL2) &&
+ !(pcfg & TX4938_PCFG_ETH0_SEL))
+ txx9_aclc_init(TX4938_ACLC_REG & 0xfffffffffULL,
+ TXX9_IRQ_BASE + TX4938_IR_ACLC,
+ 1, 0, 1);
+}
+
+void __init tx4938_sramc_init(void)
+{
+ if (tx4938_sram_resource.start)
+ txx9_sramc_init(&tx4938_sram_resource);
+}
+
+static void __init tx4938_stop_unused_modules(void)
+{
+ __u64 pcfg, rst = 0, ckd = 0;
+ char buf[128];
+
+ buf[0] = '\0';
+ local_irq_disable();
+ pcfg = ____raw_readq(&tx4938_ccfgptr->pcfg);
+ switch (txx9_pcode) {
+ case 0x4937:
+ if (!(pcfg & TX4938_PCFG_SEL2)) {
+ rst |= TX4938_CLKCTR_ACLRST;
+ ckd |= TX4938_CLKCTR_ACLCKD;
+ strcat(buf, " ACLC");
+ }
+ break;
+ case 0x4938:
+ if (!(pcfg & TX4938_PCFG_SEL2) ||
+ (pcfg & TX4938_PCFG_ETH0_SEL)) {
+ rst |= TX4938_CLKCTR_ACLRST;
+ ckd |= TX4938_CLKCTR_ACLCKD;
+ strcat(buf, " ACLC");
+ }
+ if ((pcfg &
+ (TX4938_PCFG_ATA_SEL | TX4938_PCFG_ISA_SEL |
+ TX4938_PCFG_NDF_SEL))
+ != TX4938_PCFG_NDF_SEL) {
+ rst |= TX4938_CLKCTR_NDFRST;
+ ckd |= TX4938_CLKCTR_NDFCKD;
+ strcat(buf, " NDFMC");
+ }
+ if (!(pcfg & TX4938_PCFG_SPI_SEL)) {
+ rst |= TX4938_CLKCTR_SPIRST;
+ ckd |= TX4938_CLKCTR_SPICKD;
+ strcat(buf, " SPI");
+ }
+ break;
+ }
+ if (rst | ckd) {
+ txx9_set64(&tx4938_ccfgptr->clkctr, rst);
+ txx9_set64(&tx4938_ccfgptr->clkctr, ckd);
+ }
+ local_irq_enable();
+ if (buf[0])
+ pr_info("%s: stop%s\n", txx9_pcode_str, buf);
+}
+
+static int __init tx4938_late_init(void)
+{
+ if (txx9_pcode != 0x4937 && txx9_pcode != 0x4938)
+ return -ENODEV;
+ tx4938_stop_unused_modules();
+ return 0;
+}
+late_initcall(tx4938_late_init);
diff --git a/arch/mips/txx9/generic/setup_tx4939.c b/arch/mips/txx9/generic/setup_tx4939.c
new file mode 100644
index 000000000..360c388f4
--- /dev/null
+++ b/arch/mips/txx9/generic/setup_tx4939.c
@@ -0,0 +1,585 @@
+/*
+ * TX4939 setup routines
+ * Based on linux/arch/mips/txx9/generic/setup_tx4938.c,
+ * and RBTX49xx patch from CELF patch archive.
+ *
+ * 2003-2005 (c) MontaVista Software, Inc.
+ * (C) Copyright TOSHIBA CORPORATION 2000-2001, 2004-2007
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/init.h>
+#include <linux/ioport.h>
+#include <linux/delay.h>
+#include <linux/netdevice.h>
+#include <linux/notifier.h>
+#include <linux/device.h>
+#include <linux/ethtool.h>
+#include <linux/param.h>
+#include <linux/ptrace.h>
+#include <linux/mtd/physmap.h>
+#include <linux/platform_device.h>
+#include <linux/platform_data/txx9/ndfmc.h>
+#include <asm/bootinfo.h>
+#include <asm/reboot.h>
+#include <asm/traps.h>
+#include <asm/txx9irq.h>
+#include <asm/txx9tmr.h>
+#include <asm/txx9/generic.h>
+#include <asm/txx9/dmac.h>
+#include <asm/txx9/tx4939.h>
+
+static void __init tx4939_wdr_init(void)
+{
+ /* report watchdog reset status */
+ if (____raw_readq(&tx4939_ccfgptr->ccfg) & TX4939_CCFG_WDRST)
+ pr_warn("Watchdog reset detected at 0x%lx\n",
+ read_c0_errorepc());
+ /* clear WatchDogReset (W1C) */
+ tx4939_ccfg_set(TX4939_CCFG_WDRST);
+ /* do reset on watchdog */
+ tx4939_ccfg_set(TX4939_CCFG_WR);
+}
+
+void __init tx4939_wdt_init(void)
+{
+ txx9_wdt_init(TX4939_TMR_REG(2) & 0xfffffffffULL);
+}
+
+static void tx4939_machine_restart(char *command)
+{
+ local_irq_disable();
+ pr_emerg("Rebooting (with %s watchdog reset)...\n",
+ (____raw_readq(&tx4939_ccfgptr->ccfg) & TX4939_CCFG_WDREXEN) ?
+ "external" : "internal");
+ /* clear watchdog status */
+ tx4939_ccfg_set(TX4939_CCFG_WDRST); /* W1C */
+ txx9_wdt_now(TX4939_TMR_REG(2) & 0xfffffffffULL);
+ while (!(____raw_readq(&tx4939_ccfgptr->ccfg) & TX4939_CCFG_WDRST))
+ ;
+ mdelay(10);
+ if (____raw_readq(&tx4939_ccfgptr->ccfg) & TX4939_CCFG_WDREXEN) {
+ pr_emerg("Rebooting (with internal watchdog reset)...\n");
+ /* External WDRST failed. Do internal watchdog reset */
+ tx4939_ccfg_clear(TX4939_CCFG_WDREXEN);
+ }
+ /* fallback */
+ (*_machine_halt)();
+}
+
+void show_registers(struct pt_regs *regs);
+static int tx4939_be_handler(struct pt_regs *regs, int is_fixup)
+{
+ int data = regs->cp0_cause & 4;
+ console_verbose();
+ pr_err("%cBE exception at %#lx\n",
+ data ? 'D' : 'I', regs->cp0_epc);
+ pr_err("ccfg:%llx, toea:%llx\n",
+ (unsigned long long)____raw_readq(&tx4939_ccfgptr->ccfg),
+ (unsigned long long)____raw_readq(&tx4939_ccfgptr->toea));
+#ifdef CONFIG_PCI
+ tx4927_report_pcic_status();
+#endif
+ show_registers(regs);
+ panic("BusError!");
+}
+static void __init tx4939_be_init(void)
+{
+ board_be_handler = tx4939_be_handler;
+}
+
+static struct resource tx4939_sdram_resource[4];
+static struct resource tx4939_sram_resource;
+#define TX4939_SRAM_SIZE 0x800
+
+void __init tx4939_add_memory_regions(void)
+{
+ int i;
+ unsigned long start, size;
+ u64 win;
+
+ for (i = 0; i < 4; i++) {
+ if (!((__u32)____raw_readq(&tx4939_ddrcptr->winen) & (1 << i)))
+ continue;
+ win = ____raw_readq(&tx4939_ddrcptr->win[i]);
+ start = (unsigned long)(win >> 48);
+ size = (((unsigned long)(win >> 32) & 0xffff) + 1) - start;
+ add_memory_region(start << 20, size << 20, BOOT_MEM_RAM);
+ }
+}
+
+void __init tx4939_setup(void)
+{
+ int i;
+ __u32 divmode;
+ __u64 pcfg;
+ unsigned int cpuclk = 0;
+
+ txx9_reg_res_init(TX4939_REV_PCODE(), TX4939_REG_BASE,
+ TX4939_REG_SIZE);
+ set_c0_config(TX49_CONF_CWFON);
+
+ /* SDRAMC,EBUSC are configured by PROM */
+ for (i = 0; i < 4; i++) {
+ if (!(TX4939_EBUSC_CR(i) & 0x8))
+ continue; /* disabled */
+ txx9_ce_res[i].start = (unsigned long)TX4939_EBUSC_BA(i);
+ txx9_ce_res[i].end =
+ txx9_ce_res[i].start + TX4939_EBUSC_SIZE(i) - 1;
+ request_resource(&iomem_resource, &txx9_ce_res[i]);
+ }
+
+ /* clocks */
+ if (txx9_master_clock) {
+ /* calculate cpu_clock from master_clock */
+ divmode = (__u32)____raw_readq(&tx4939_ccfgptr->ccfg) &
+ TX4939_CCFG_MULCLK_MASK;
+ cpuclk = txx9_master_clock * 20 / 2;
+ switch (divmode) {
+ case TX4939_CCFG_MULCLK_8:
+ cpuclk = cpuclk / 3 * 4 /* / 6 * 8 */; break;
+ case TX4939_CCFG_MULCLK_9:
+ cpuclk = cpuclk / 2 * 3 /* / 6 * 9 */; break;
+ case TX4939_CCFG_MULCLK_10:
+ cpuclk = cpuclk / 3 * 5 /* / 6 * 10 */; break;
+ case TX4939_CCFG_MULCLK_11:
+ cpuclk = cpuclk / 6 * 11; break;
+ case TX4939_CCFG_MULCLK_12:
+ cpuclk = cpuclk * 2 /* / 6 * 12 */; break;
+ case TX4939_CCFG_MULCLK_13:
+ cpuclk = cpuclk / 6 * 13; break;
+ case TX4939_CCFG_MULCLK_14:
+ cpuclk = cpuclk / 3 * 7 /* / 6 * 14 */; break;
+ case TX4939_CCFG_MULCLK_15:
+ cpuclk = cpuclk / 2 * 5 /* / 6 * 15 */; break;
+ }
+ txx9_cpu_clock = cpuclk;
+ } else {
+ if (txx9_cpu_clock == 0)
+ txx9_cpu_clock = 400000000; /* 400MHz */
+ /* calculate master_clock from cpu_clock */
+ cpuclk = txx9_cpu_clock;
+ divmode = (__u32)____raw_readq(&tx4939_ccfgptr->ccfg) &
+ TX4939_CCFG_MULCLK_MASK;
+ switch (divmode) {
+ case TX4939_CCFG_MULCLK_8:
+ txx9_master_clock = cpuclk * 6 / 8; break;
+ case TX4939_CCFG_MULCLK_9:
+ txx9_master_clock = cpuclk * 6 / 9; break;
+ case TX4939_CCFG_MULCLK_10:
+ txx9_master_clock = cpuclk * 6 / 10; break;
+ case TX4939_CCFG_MULCLK_11:
+ txx9_master_clock = cpuclk * 6 / 11; break;
+ case TX4939_CCFG_MULCLK_12:
+ txx9_master_clock = cpuclk * 6 / 12; break;
+ case TX4939_CCFG_MULCLK_13:
+ txx9_master_clock = cpuclk * 6 / 13; break;
+ case TX4939_CCFG_MULCLK_14:
+ txx9_master_clock = cpuclk * 6 / 14; break;
+ case TX4939_CCFG_MULCLK_15:
+ txx9_master_clock = cpuclk * 6 / 15; break;
+ }
+ txx9_master_clock /= 10; /* * 2 / 20 */
+ }
+ /* calculate gbus_clock from cpu_clock */
+ divmode = (__u32)____raw_readq(&tx4939_ccfgptr->ccfg) &
+ TX4939_CCFG_YDIVMODE_MASK;
+ txx9_gbus_clock = txx9_cpu_clock;
+ switch (divmode) {
+ case TX4939_CCFG_YDIVMODE_2:
+ txx9_gbus_clock /= 2; break;
+ case TX4939_CCFG_YDIVMODE_3:
+ txx9_gbus_clock /= 3; break;
+ case TX4939_CCFG_YDIVMODE_5:
+ txx9_gbus_clock /= 5; break;
+ case TX4939_CCFG_YDIVMODE_6:
+ txx9_gbus_clock /= 6; break;
+ }
+ /* change default value to udelay/mdelay take reasonable time */
+ loops_per_jiffy = txx9_cpu_clock / HZ / 2;
+
+ /* CCFG */
+ tx4939_wdr_init();
+ /* clear BusErrorOnWrite flag (W1C) */
+ tx4939_ccfg_set(TX4939_CCFG_WDRST | TX4939_CCFG_BEOW);
+ /* enable Timeout BusError */
+ if (txx9_ccfg_toeon)
+ tx4939_ccfg_set(TX4939_CCFG_TOE);
+
+ /* DMA selection */
+ txx9_clear64(&tx4939_ccfgptr->pcfg, TX4939_PCFG_DMASEL_ALL);
+
+ /* Use external clock for external arbiter */
+ if (!(____raw_readq(&tx4939_ccfgptr->ccfg) & TX4939_CCFG_PCIARB))
+ txx9_clear64(&tx4939_ccfgptr->pcfg, TX4939_PCFG_PCICLKEN_ALL);
+
+ pr_info("%s -- %dMHz(M%dMHz,G%dMHz) CRIR:%08x CCFG:%llx PCFG:%llx\n",
+ txx9_pcode_str,
+ (cpuclk + 500000) / 1000000,
+ (txx9_master_clock + 500000) / 1000000,
+ (txx9_gbus_clock + 500000) / 1000000,
+ (__u32)____raw_readq(&tx4939_ccfgptr->crir),
+ ____raw_readq(&tx4939_ccfgptr->ccfg),
+ ____raw_readq(&tx4939_ccfgptr->pcfg));
+
+ pr_info("%s DDRC -- EN:%08x", txx9_pcode_str,
+ (__u32)____raw_readq(&tx4939_ddrcptr->winen));
+ for (i = 0; i < 4; i++) {
+ __u64 win = ____raw_readq(&tx4939_ddrcptr->win[i]);
+ if (!((__u32)____raw_readq(&tx4939_ddrcptr->winen) & (1 << i)))
+ continue; /* disabled */
+ pr_cont(" #%d:%016llx", i, win);
+ tx4939_sdram_resource[i].name = "DDR SDRAM";
+ tx4939_sdram_resource[i].start =
+ (unsigned long)(win >> 48) << 20;
+ tx4939_sdram_resource[i].end =
+ ((((unsigned long)(win >> 32) & 0xffff) + 1) <<
+ 20) - 1;
+ tx4939_sdram_resource[i].flags = IORESOURCE_MEM;
+ request_resource(&iomem_resource, &tx4939_sdram_resource[i]);
+ }
+ pr_cont("\n");
+
+ /* SRAM */
+ if (____raw_readq(&tx4939_sramcptr->cr) & 1) {
+ unsigned int size = TX4939_SRAM_SIZE;
+ tx4939_sram_resource.name = "SRAM";
+ tx4939_sram_resource.start =
+ (____raw_readq(&tx4939_sramcptr->cr) >> (39-11))
+ & ~(size - 1);
+ tx4939_sram_resource.end =
+ tx4939_sram_resource.start + TX4939_SRAM_SIZE - 1;
+ tx4939_sram_resource.flags = IORESOURCE_MEM;
+ request_resource(&iomem_resource, &tx4939_sram_resource);
+ }
+
+ /* TMR */
+ /* disable all timers */
+ for (i = 0; i < TX4939_NR_TMR; i++)
+ txx9_tmr_init(TX4939_TMR_REG(i) & 0xfffffffffULL);
+
+ /* set PCIC1 reset (required to prevent hangup on BIST) */
+ txx9_set64(&tx4939_ccfgptr->clkctr, TX4939_CLKCTR_PCI1RST);
+ pcfg = ____raw_readq(&tx4939_ccfgptr->pcfg);
+ if (pcfg & (TX4939_PCFG_ET0MODE | TX4939_PCFG_ET1MODE)) {
+ mdelay(1); /* at least 128 cpu clock */
+ /* clear PCIC1 reset */
+ txx9_clear64(&tx4939_ccfgptr->clkctr, TX4939_CLKCTR_PCI1RST);
+ } else {
+ pr_info("%s: stop PCIC1\n", txx9_pcode_str);
+ /* stop PCIC1 */
+ txx9_set64(&tx4939_ccfgptr->clkctr, TX4939_CLKCTR_PCI1CKD);
+ }
+ if (!(pcfg & TX4939_PCFG_ET0MODE)) {
+ pr_info("%s: stop ETH0\n", txx9_pcode_str);
+ txx9_set64(&tx4939_ccfgptr->clkctr, TX4939_CLKCTR_ETH0RST);
+ txx9_set64(&tx4939_ccfgptr->clkctr, TX4939_CLKCTR_ETH0CKD);
+ }
+ if (!(pcfg & TX4939_PCFG_ET1MODE)) {
+ pr_info("%s: stop ETH1\n", txx9_pcode_str);
+ txx9_set64(&tx4939_ccfgptr->clkctr, TX4939_CLKCTR_ETH1RST);
+ txx9_set64(&tx4939_ccfgptr->clkctr, TX4939_CLKCTR_ETH1CKD);
+ }
+
+ _machine_restart = tx4939_machine_restart;
+ board_be_init = tx4939_be_init;
+}
+
+void __init tx4939_time_init(unsigned int tmrnr)
+{
+ if (____raw_readq(&tx4939_ccfgptr->ccfg) & TX4939_CCFG_TINTDIS)
+ txx9_clockevent_init(TX4939_TMR_REG(tmrnr) & 0xfffffffffULL,
+ TXX9_IRQ_BASE + TX4939_IR_TMR(tmrnr),
+ TXX9_IMCLK);
+}
+
+void __init tx4939_sio_init(unsigned int sclk, unsigned int cts_mask)
+{
+ int i;
+ unsigned int ch_mask = 0;
+ __u64 pcfg = __raw_readq(&tx4939_ccfgptr->pcfg);
+
+ cts_mask |= ~1; /* only SIO0 have RTS/CTS */
+ if ((pcfg & TX4939_PCFG_SIO2MODE_MASK) != TX4939_PCFG_SIO2MODE_SIO0)
+ cts_mask |= 1 << 0; /* disable SIO0 RTS/CTS by PCFG setting */
+ if ((pcfg & TX4939_PCFG_SIO2MODE_MASK) != TX4939_PCFG_SIO2MODE_SIO2)
+ ch_mask |= 1 << 2; /* disable SIO2 by PCFG setting */
+ if (pcfg & TX4939_PCFG_SIO3MODE)
+ ch_mask |= 1 << 3; /* disable SIO3 by PCFG setting */
+ for (i = 0; i < 4; i++) {
+ if ((1 << i) & ch_mask)
+ continue;
+ txx9_sio_init(TX4939_SIO_REG(i) & 0xfffffffffULL,
+ TXX9_IRQ_BASE + TX4939_IR_SIO(i),
+ i, sclk, (1 << i) & cts_mask);
+ }
+}
+
+#if IS_ENABLED(CONFIG_TC35815)
+static u32 tx4939_get_eth_speed(struct net_device *dev)
+{
+ struct ethtool_link_ksettings cmd;
+
+ if (__ethtool_get_link_ksettings(dev, &cmd))
+ return 100; /* default 100Mbps */
+
+ return cmd.base.speed;
+}
+
+static int tx4939_netdev_event(struct notifier_block *this,
+ unsigned long event,
+ void *ptr)
+{
+ struct net_device *dev = netdev_notifier_info_to_dev(ptr);
+
+ if (event == NETDEV_CHANGE && netif_carrier_ok(dev)) {
+ __u64 bit = 0;
+ if (dev->irq == TXX9_IRQ_BASE + TX4939_IR_ETH(0))
+ bit = TX4939_PCFG_SPEED0;
+ else if (dev->irq == TXX9_IRQ_BASE + TX4939_IR_ETH(1))
+ bit = TX4939_PCFG_SPEED1;
+ if (bit) {
+ if (tx4939_get_eth_speed(dev) == 100)
+ txx9_set64(&tx4939_ccfgptr->pcfg, bit);
+ else
+ txx9_clear64(&tx4939_ccfgptr->pcfg, bit);
+ }
+ }
+ return NOTIFY_DONE;
+}
+
+static struct notifier_block tx4939_netdev_notifier = {
+ .notifier_call = tx4939_netdev_event,
+ .priority = 1,
+};
+
+void __init tx4939_ethaddr_init(unsigned char *addr0, unsigned char *addr1)
+{
+ u64 pcfg = __raw_readq(&tx4939_ccfgptr->pcfg);
+
+ if (addr0 && (pcfg & TX4939_PCFG_ET0MODE))
+ txx9_ethaddr_init(TXX9_IRQ_BASE + TX4939_IR_ETH(0), addr0);
+ if (addr1 && (pcfg & TX4939_PCFG_ET1MODE))
+ txx9_ethaddr_init(TXX9_IRQ_BASE + TX4939_IR_ETH(1), addr1);
+ register_netdevice_notifier(&tx4939_netdev_notifier);
+}
+#else
+void __init tx4939_ethaddr_init(unsigned char *addr0, unsigned char *addr1)
+{
+}
+#endif
+
+void __init tx4939_mtd_init(int ch)
+{
+ struct physmap_flash_data pdata = {
+ .width = TX4939_EBUSC_WIDTH(ch) / 8,
+ };
+ unsigned long start = txx9_ce_res[ch].start;
+ unsigned long size = txx9_ce_res[ch].end - start + 1;
+
+ if (!(TX4939_EBUSC_CR(ch) & 0x8))
+ return; /* disabled */
+ txx9_physmap_flash_init(ch, start, size, &pdata);
+}
+
+#define TX4939_ATA_REG_PHYS(ch) (TX4939_ATA_REG(ch) & 0xfffffffffULL)
+void __init tx4939_ata_init(void)
+{
+ static struct resource ata0_res[] = {
+ {
+ .start = TX4939_ATA_REG_PHYS(0),
+ .end = TX4939_ATA_REG_PHYS(0) + 0x1000 - 1,
+ .flags = IORESOURCE_MEM,
+ }, {
+ .start = TXX9_IRQ_BASE + TX4939_IR_ATA(0),
+ .flags = IORESOURCE_IRQ,
+ },
+ };
+ static struct resource ata1_res[] = {
+ {
+ .start = TX4939_ATA_REG_PHYS(1),
+ .end = TX4939_ATA_REG_PHYS(1) + 0x1000 - 1,
+ .flags = IORESOURCE_MEM,
+ }, {
+ .start = TXX9_IRQ_BASE + TX4939_IR_ATA(1),
+ .flags = IORESOURCE_IRQ,
+ },
+ };
+ static struct platform_device ata0_dev = {
+ .name = "tx4939ide",
+ .id = 0,
+ .num_resources = ARRAY_SIZE(ata0_res),
+ .resource = ata0_res,
+ };
+ static struct platform_device ata1_dev = {
+ .name = "tx4939ide",
+ .id = 1,
+ .num_resources = ARRAY_SIZE(ata1_res),
+ .resource = ata1_res,
+ };
+ __u64 pcfg = __raw_readq(&tx4939_ccfgptr->pcfg);
+
+ if (pcfg & TX4939_PCFG_ATA0MODE)
+ platform_device_register(&ata0_dev);
+ if ((pcfg & (TX4939_PCFG_ATA1MODE |
+ TX4939_PCFG_ET1MODE |
+ TX4939_PCFG_ET0MODE)) == TX4939_PCFG_ATA1MODE)
+ platform_device_register(&ata1_dev);
+}
+
+void __init tx4939_rtc_init(void)
+{
+ static struct resource res[] = {
+ {
+ .start = TX4939_RTC_REG & 0xfffffffffULL,
+ .end = (TX4939_RTC_REG & 0xfffffffffULL) + 0x100 - 1,
+ .flags = IORESOURCE_MEM,
+ }, {
+ .start = TXX9_IRQ_BASE + TX4939_IR_RTC,
+ .flags = IORESOURCE_IRQ,
+ },
+ };
+ static struct platform_device rtc_dev = {
+ .name = "tx4939rtc",
+ .id = -1,
+ .num_resources = ARRAY_SIZE(res),
+ .resource = res,
+ };
+
+ platform_device_register(&rtc_dev);
+}
+
+void __init tx4939_ndfmc_init(unsigned int hold, unsigned int spw,
+ unsigned char ch_mask, unsigned char wide_mask)
+{
+ struct txx9ndfmc_platform_data plat_data = {
+ .shift = 1,
+ .gbus_clock = txx9_gbus_clock,
+ .hold = hold,
+ .spw = spw,
+ .flags = NDFMC_PLAT_FLAG_NO_RSTR | NDFMC_PLAT_FLAG_HOLDADD |
+ NDFMC_PLAT_FLAG_DUMMYWRITE,
+ .ch_mask = ch_mask,
+ .wide_mask = wide_mask,
+ };
+ txx9_ndfmc_init(TX4939_NDFMC_REG & 0xfffffffffULL, &plat_data);
+}
+
+void __init tx4939_dmac_init(int memcpy_chan0, int memcpy_chan1)
+{
+ struct txx9dmac_platform_data plat_data = {
+ .have_64bit_regs = true,
+ };
+ int i;
+
+ for (i = 0; i < 2; i++) {
+ plat_data.memcpy_chan = i ? memcpy_chan1 : memcpy_chan0;
+ txx9_dmac_init(i, TX4939_DMA_REG(i) & 0xfffffffffULL,
+ TXX9_IRQ_BASE + TX4939_IR_DMA(i, 0),
+ &plat_data);
+ }
+}
+
+void __init tx4939_aclc_init(void)
+{
+ u64 pcfg = __raw_readq(&tx4939_ccfgptr->pcfg);
+
+ if ((pcfg & TX4939_PCFG_I2SMODE_MASK) == TX4939_PCFG_I2SMODE_ACLC)
+ txx9_aclc_init(TX4939_ACLC_REG & 0xfffffffffULL,
+ TXX9_IRQ_BASE + TX4939_IR_ACLC, 1, 0, 1);
+}
+
+void __init tx4939_sramc_init(void)
+{
+ if (tx4939_sram_resource.start)
+ txx9_sramc_init(&tx4939_sram_resource);
+}
+
+void __init tx4939_rng_init(void)
+{
+ static struct resource res = {
+ .start = TX4939_RNG_REG & 0xfffffffffULL,
+ .end = (TX4939_RNG_REG & 0xfffffffffULL) + 0x30 - 1,
+ .flags = IORESOURCE_MEM,
+ };
+ static struct platform_device pdev = {
+ .name = "tx4939-rng",
+ .id = -1,
+ .num_resources = 1,
+ .resource = &res,
+ };
+
+ platform_device_register(&pdev);
+}
+
+static void __init tx4939_stop_unused_modules(void)
+{
+ __u64 pcfg, rst = 0, ckd = 0;
+ char buf[128];
+
+ buf[0] = '\0';
+ local_irq_disable();
+ pcfg = ____raw_readq(&tx4939_ccfgptr->pcfg);
+ if ((pcfg & TX4939_PCFG_I2SMODE_MASK) !=
+ TX4939_PCFG_I2SMODE_ACLC) {
+ rst |= TX4939_CLKCTR_ACLRST;
+ ckd |= TX4939_CLKCTR_ACLCKD;
+ strcat(buf, " ACLC");
+ }
+ if ((pcfg & TX4939_PCFG_I2SMODE_MASK) !=
+ TX4939_PCFG_I2SMODE_I2S &&
+ (pcfg & TX4939_PCFG_I2SMODE_MASK) !=
+ TX4939_PCFG_I2SMODE_I2S_ALT) {
+ rst |= TX4939_CLKCTR_I2SRST;
+ ckd |= TX4939_CLKCTR_I2SCKD;
+ strcat(buf, " I2S");
+ }
+ if (!(pcfg & TX4939_PCFG_ATA0MODE)) {
+ rst |= TX4939_CLKCTR_ATA0RST;
+ ckd |= TX4939_CLKCTR_ATA0CKD;
+ strcat(buf, " ATA0");
+ }
+ if (!(pcfg & TX4939_PCFG_ATA1MODE)) {
+ rst |= TX4939_CLKCTR_ATA1RST;
+ ckd |= TX4939_CLKCTR_ATA1CKD;
+ strcat(buf, " ATA1");
+ }
+ if (pcfg & TX4939_PCFG_SPIMODE) {
+ rst |= TX4939_CLKCTR_SPIRST;
+ ckd |= TX4939_CLKCTR_SPICKD;
+ strcat(buf, " SPI");
+ }
+ if (!(pcfg & (TX4939_PCFG_VSSMODE | TX4939_PCFG_VPSMODE))) {
+ rst |= TX4939_CLKCTR_VPCRST;
+ ckd |= TX4939_CLKCTR_VPCCKD;
+ strcat(buf, " VPC");
+ }
+ if ((pcfg & TX4939_PCFG_SIO2MODE_MASK) != TX4939_PCFG_SIO2MODE_SIO2) {
+ rst |= TX4939_CLKCTR_SIO2RST;
+ ckd |= TX4939_CLKCTR_SIO2CKD;
+ strcat(buf, " SIO2");
+ }
+ if (pcfg & TX4939_PCFG_SIO3MODE) {
+ rst |= TX4939_CLKCTR_SIO3RST;
+ ckd |= TX4939_CLKCTR_SIO3CKD;
+ strcat(buf, " SIO3");
+ }
+ if (rst | ckd) {
+ txx9_set64(&tx4939_ccfgptr->clkctr, rst);
+ txx9_set64(&tx4939_ccfgptr->clkctr, ckd);
+ }
+ local_irq_enable();
+ if (buf[0])
+ pr_info("%s: stop%s\n", txx9_pcode_str, buf);
+}
+
+static int __init tx4939_late_init(void)
+{
+ if (txx9_pcode != 0x4939)
+ return -ENODEV;
+ tx4939_stop_unused_modules();
+ return 0;
+}
+late_initcall(tx4939_late_init);
diff --git a/arch/mips/txx9/generic/smsc_fdc37m81x.c b/arch/mips/txx9/generic/smsc_fdc37m81x.c
new file mode 100644
index 000000000..40f4098d3
--- /dev/null
+++ b/arch/mips/txx9/generic/smsc_fdc37m81x.c
@@ -0,0 +1,169 @@
+/*
+ * Interface for smsc fdc48m81x Super IO chip
+ *
+ * Author: MontaVista Software, Inc. source@mvista.com
+ *
+ * 2001-2003 (c) MontaVista Software, Inc. This file is licensed under
+ * the terms of the GNU General Public License version 2. This program
+ * is licensed "as is" without any warranty of any kind, whether express
+ * or implied.
+ *
+ * Copyright 2004 (c) MontaVista Software, Inc.
+ */
+#include <linux/init.h>
+#include <linux/types.h>
+#include <asm/io.h>
+#include <asm/txx9/smsc_fdc37m81x.h>
+
+/* Common Registers */
+#define SMSC_FDC37M81X_CONFIG_INDEX 0x00
+#define SMSC_FDC37M81X_CONFIG_DATA 0x01
+#define SMSC_FDC37M81X_CONF 0x02
+#define SMSC_FDC37M81X_INDEX 0x03
+#define SMSC_FDC37M81X_DNUM 0x07
+#define SMSC_FDC37M81X_DID 0x20
+#define SMSC_FDC37M81X_DREV 0x21
+#define SMSC_FDC37M81X_PCNT 0x22
+#define SMSC_FDC37M81X_PMGT 0x23
+#define SMSC_FDC37M81X_OSC 0x24
+#define SMSC_FDC37M81X_CONFPA0 0x26
+#define SMSC_FDC37M81X_CONFPA1 0x27
+#define SMSC_FDC37M81X_TEST4 0x2B
+#define SMSC_FDC37M81X_TEST5 0x2C
+#define SMSC_FDC37M81X_TEST1 0x2D
+#define SMSC_FDC37M81X_TEST2 0x2E
+#define SMSC_FDC37M81X_TEST3 0x2F
+
+/* Logical device numbers */
+#define SMSC_FDC37M81X_FDD 0x00
+#define SMSC_FDC37M81X_SERIAL1 0x04
+#define SMSC_FDC37M81X_SERIAL2 0x05
+#define SMSC_FDC37M81X_KBD 0x07
+
+/* Logical device Config Registers */
+#define SMSC_FDC37M81X_ACTIVE 0x30
+#define SMSC_FDC37M81X_BASEADDR0 0x60
+#define SMSC_FDC37M81X_BASEADDR1 0x61
+#define SMSC_FDC37M81X_INT 0x70
+#define SMSC_FDC37M81X_INT2 0x72
+#define SMSC_FDC37M81X_MODE 0xF0
+
+/* Chip Config Values */
+#define SMSC_FDC37M81X_CONFIG_ENTER 0x55
+#define SMSC_FDC37M81X_CONFIG_EXIT 0xaa
+#define SMSC_FDC37M81X_CHIP_ID 0x4d
+
+static unsigned long g_smsc_fdc37m81x_base;
+
+static inline unsigned char smsc_fdc37m81x_rd(unsigned char index)
+{
+ outb(index, g_smsc_fdc37m81x_base + SMSC_FDC37M81X_CONFIG_INDEX);
+
+ return inb(g_smsc_fdc37m81x_base + SMSC_FDC37M81X_CONFIG_DATA);
+}
+
+static inline void smsc_dc37m81x_wr(unsigned char index, unsigned char data)
+{
+ outb(index, g_smsc_fdc37m81x_base + SMSC_FDC37M81X_CONFIG_INDEX);
+ outb(data, g_smsc_fdc37m81x_base + SMSC_FDC37M81X_CONFIG_DATA);
+}
+
+void smsc_fdc37m81x_config_beg(void)
+{
+ if (g_smsc_fdc37m81x_base) {
+ outb(SMSC_FDC37M81X_CONFIG_ENTER,
+ g_smsc_fdc37m81x_base + SMSC_FDC37M81X_CONFIG_INDEX);
+ }
+}
+
+void smsc_fdc37m81x_config_end(void)
+{
+ if (g_smsc_fdc37m81x_base)
+ outb(SMSC_FDC37M81X_CONFIG_EXIT,
+ g_smsc_fdc37m81x_base + SMSC_FDC37M81X_CONFIG_INDEX);
+}
+
+u8 smsc_fdc37m81x_config_get(u8 reg)
+{
+ u8 val = 0;
+
+ if (g_smsc_fdc37m81x_base)
+ val = smsc_fdc37m81x_rd(reg);
+
+ return val;
+}
+
+void smsc_fdc37m81x_config_set(u8 reg, u8 val)
+{
+ if (g_smsc_fdc37m81x_base)
+ smsc_dc37m81x_wr(reg, val);
+}
+
+unsigned long __init smsc_fdc37m81x_init(unsigned long port)
+{
+ const int field = sizeof(unsigned long) * 2;
+ u8 chip_id;
+
+ if (g_smsc_fdc37m81x_base)
+ pr_warn("%s: stepping on old base=0x%0*lx\n", __func__, field,
+ g_smsc_fdc37m81x_base);
+
+ g_smsc_fdc37m81x_base = port;
+
+ smsc_fdc37m81x_config_beg();
+
+ chip_id = smsc_fdc37m81x_rd(SMSC_FDC37M81X_DID);
+ if (chip_id == SMSC_FDC37M81X_CHIP_ID)
+ smsc_fdc37m81x_config_end();
+ else {
+ pr_warn("%s: unknown chip id 0x%02x\n", __func__, chip_id);
+ g_smsc_fdc37m81x_base = 0;
+ }
+
+ return g_smsc_fdc37m81x_base;
+}
+
+#ifdef DEBUG
+static void smsc_fdc37m81x_config_dump_one(const char *key, u8 dev, u8 reg)
+{
+ pr_info("%s: dev=0x%02x reg=0x%02x val=0x%02x\n", key, dev, reg,
+ smsc_fdc37m81x_rd(reg));
+}
+
+void smsc_fdc37m81x_config_dump(void)
+{
+ u8 orig;
+ const char *fname = __func__;
+
+ smsc_fdc37m81x_config_beg();
+
+ orig = smsc_fdc37m81x_rd(SMSC_FDC37M81X_DNUM);
+
+ pr_info("%s: common\n", fname);
+ smsc_fdc37m81x_config_dump_one(fname, SMSC_FDC37M81X_NONE,
+ SMSC_FDC37M81X_DNUM);
+ smsc_fdc37m81x_config_dump_one(fname, SMSC_FDC37M81X_NONE,
+ SMSC_FDC37M81X_DID);
+ smsc_fdc37m81x_config_dump_one(fname, SMSC_FDC37M81X_NONE,
+ SMSC_FDC37M81X_DREV);
+ smsc_fdc37m81x_config_dump_one(fname, SMSC_FDC37M81X_NONE,
+ SMSC_FDC37M81X_PCNT);
+ smsc_fdc37m81x_config_dump_one(fname, SMSC_FDC37M81X_NONE,
+ SMSC_FDC37M81X_PMGT);
+
+ pr_info("%s: keyboard\n", fname);
+ smsc_dc37m81x_wr(SMSC_FDC37M81X_DNUM, SMSC_FDC37M81X_KBD);
+ smsc_fdc37m81x_config_dump_one(fname, SMSC_FDC37M81X_KBD,
+ SMSC_FDC37M81X_ACTIVE);
+ smsc_fdc37m81x_config_dump_one(fname, SMSC_FDC37M81X_KBD,
+ SMSC_FDC37M81X_INT);
+ smsc_fdc37m81x_config_dump_one(fname, SMSC_FDC37M81X_KBD,
+ SMSC_FDC37M81X_INT2);
+ smsc_fdc37m81x_config_dump_one(fname, SMSC_FDC37M81X_KBD,
+ SMSC_FDC37M81X_LDCR_F0);
+
+ smsc_dc37m81x_wr(SMSC_FDC37M81X_DNUM, orig);
+
+ smsc_fdc37m81x_config_end();
+}
+#endif
diff --git a/arch/mips/txx9/generic/spi_eeprom.c b/arch/mips/txx9/generic/spi_eeprom.c
new file mode 100644
index 000000000..d833dd2c9
--- /dev/null
+++ b/arch/mips/txx9/generic/spi_eeprom.c
@@ -0,0 +1,104 @@
+/*
+ * spi_eeprom.c
+ * Copyright (C) 2000-2001 Toshiba Corporation
+ *
+ * 2003-2005 (c) MontaVista Software, Inc. This file is licensed under the
+ * terms of the GNU General Public License version 2. This program is
+ * licensed "as is" without any warranty of any kind, whether express
+ * or implied.
+ *
+ * Support for TX4938 in 2.6 - Manish Lachwani (mlachwani@mvista.com)
+ */
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/export.h>
+#include <linux/device.h>
+#include <linux/spi/spi.h>
+#include <linux/spi/eeprom.h>
+#include <asm/txx9/spi.h>
+
+#define AT250X0_PAGE_SIZE 8
+
+/* register board information for at25 driver */
+int __init spi_eeprom_register(int busid, int chipid, int size)
+{
+ struct spi_board_info info = {
+ .modalias = "at25",
+ .max_speed_hz = 1500000, /* 1.5Mbps */
+ .bus_num = busid,
+ .chip_select = chipid,
+ /* Mode 0: High-Active, Sample-Then-Shift */
+ };
+ struct spi_eeprom *eeprom;
+ eeprom = kzalloc(sizeof(*eeprom), GFP_KERNEL);
+ if (!eeprom)
+ return -ENOMEM;
+ strcpy(eeprom->name, "at250x0");
+ eeprom->byte_len = size;
+ eeprom->page_size = AT250X0_PAGE_SIZE;
+ eeprom->flags = EE_ADDR1;
+ info.platform_data = eeprom;
+ return spi_register_board_info(&info, 1);
+}
+
+/* simple temporary spi driver to provide early access to seeprom. */
+
+static struct read_param {
+ int busid;
+ int chipid;
+ int address;
+ unsigned char *buf;
+ int len;
+} *read_param;
+
+static int __init early_seeprom_probe(struct spi_device *spi)
+{
+ int stat = 0;
+ u8 cmd[2];
+ int len = read_param->len;
+ char *buf = read_param->buf;
+ int address = read_param->address;
+
+ dev_info(&spi->dev, "spiclk %u KHz.\n",
+ (spi->max_speed_hz + 500) / 1000);
+ if (read_param->busid != spi->master->bus_num ||
+ read_param->chipid != spi->chip_select)
+ return -ENODEV;
+ while (len > 0) {
+ /* spi_write_then_read can only work with small chunk */
+ int c = len < AT250X0_PAGE_SIZE ? len : AT250X0_PAGE_SIZE;
+ cmd[0] = 0x03; /* AT25_READ */
+ cmd[1] = address;
+ stat = spi_write_then_read(spi, cmd, sizeof(cmd), buf, c);
+ buf += c;
+ len -= c;
+ address += c;
+ }
+ return stat;
+}
+
+static struct spi_driver early_seeprom_driver __initdata = {
+ .driver = {
+ .name = "at25",
+ },
+ .probe = early_seeprom_probe,
+};
+
+int __init spi_eeprom_read(int busid, int chipid, int address,
+ unsigned char *buf, int len)
+{
+ int ret;
+ struct read_param param = {
+ .busid = busid,
+ .chipid = chipid,
+ .address = address,
+ .buf = buf,
+ .len = len
+ };
+
+ read_param = &param;
+ ret = spi_register_driver(&early_seeprom_driver);
+ if (!ret)
+ spi_unregister_driver(&early_seeprom_driver);
+ return ret;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-28 01:59:01 +0000