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-rw-r--r--arch/sh/boards/mach-sh03/Makefile7
-rw-r--r--arch/sh/boards/mach-sh03/rtc.c143
-rw-r--r--arch/sh/boards/mach-sh03/setup.c97
3 files changed, 247 insertions, 0 deletions
diff --git a/arch/sh/boards/mach-sh03/Makefile b/arch/sh/boards/mach-sh03/Makefile
new file mode 100644
index 0000000000..f89c25c6a3
--- /dev/null
+++ b/arch/sh/boards/mach-sh03/Makefile
@@ -0,0 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Makefile for the Interface (CTP/PCI-SH03) specific parts of the kernel
+#
+
+obj-y := setup.o
+obj-$(CONFIG_RTC_DRV_GENERIC) += rtc.o
diff --git a/arch/sh/boards/mach-sh03/rtc.c b/arch/sh/boards/mach-sh03/rtc.c
new file mode 100644
index 0000000000..7fb474844a
--- /dev/null
+++ b/arch/sh/boards/mach-sh03/rtc.c
@@ -0,0 +1,143 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * linux/arch/sh/boards/sh03/rtc.c -- CTP/PCI-SH03 on-chip RTC support
+ *
+ * Copyright (C) 2004 Saito.K & Jeanne(ksaito@interface.co.jp)
+ *
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/time.h>
+#include <linux/bcd.h>
+#include <linux/spinlock.h>
+#include <linux/io.h>
+#include <linux/rtc.h>
+#include <linux/platform_device.h>
+
+#define RTC_BASE 0xb0000000
+#define RTC_SEC1 (RTC_BASE + 0)
+#define RTC_SEC10 (RTC_BASE + 1)
+#define RTC_MIN1 (RTC_BASE + 2)
+#define RTC_MIN10 (RTC_BASE + 3)
+#define RTC_HOU1 (RTC_BASE + 4)
+#define RTC_HOU10 (RTC_BASE + 5)
+#define RTC_WEE1 (RTC_BASE + 6)
+#define RTC_DAY1 (RTC_BASE + 7)
+#define RTC_DAY10 (RTC_BASE + 8)
+#define RTC_MON1 (RTC_BASE + 9)
+#define RTC_MON10 (RTC_BASE + 10)
+#define RTC_YEA1 (RTC_BASE + 11)
+#define RTC_YEA10 (RTC_BASE + 12)
+#define RTC_YEA100 (RTC_BASE + 13)
+#define RTC_YEA1000 (RTC_BASE + 14)
+#define RTC_CTL (RTC_BASE + 15)
+#define RTC_BUSY 1
+#define RTC_STOP 2
+
+static DEFINE_SPINLOCK(sh03_rtc_lock);
+
+static int sh03_rtc_gettimeofday(struct device *dev, struct rtc_time *tm)
+{
+ unsigned int year, mon, day, hour, min, sec;
+
+ spin_lock(&sh03_rtc_lock);
+ again:
+ do {
+ sec = (__raw_readb(RTC_SEC1) & 0xf) + (__raw_readb(RTC_SEC10) & 0x7) * 10;
+ min = (__raw_readb(RTC_MIN1) & 0xf) + (__raw_readb(RTC_MIN10) & 0xf) * 10;
+ hour = (__raw_readb(RTC_HOU1) & 0xf) + (__raw_readb(RTC_HOU10) & 0xf) * 10;
+ day = (__raw_readb(RTC_DAY1) & 0xf) + (__raw_readb(RTC_DAY10) & 0xf) * 10;
+ mon = (__raw_readb(RTC_MON1) & 0xf) + (__raw_readb(RTC_MON10) & 0xf) * 10;
+ year = (__raw_readb(RTC_YEA1) & 0xf) + (__raw_readb(RTC_YEA10) & 0xf) * 10
+ + (__raw_readb(RTC_YEA100 ) & 0xf) * 100
+ + (__raw_readb(RTC_YEA1000) & 0xf) * 1000;
+ } while (sec != (__raw_readb(RTC_SEC1) & 0xf) + (__raw_readb(RTC_SEC10) & 0x7) * 10);
+ if (year == 0 || mon < 1 || mon > 12 || day > 31 || day < 1 ||
+ hour > 23 || min > 59 || sec > 59) {
+ printk(KERN_ERR
+ "SH-03 RTC: invalid value, resetting to 1 Jan 2000\n");
+ printk("year=%d, mon=%d, day=%d, hour=%d, min=%d, sec=%d\n",
+ year, mon, day, hour, min, sec);
+
+ __raw_writeb(0, RTC_SEC1); __raw_writeb(0, RTC_SEC10);
+ __raw_writeb(0, RTC_MIN1); __raw_writeb(0, RTC_MIN10);
+ __raw_writeb(0, RTC_HOU1); __raw_writeb(0, RTC_HOU10);
+ __raw_writeb(6, RTC_WEE1);
+ __raw_writeb(1, RTC_DAY1); __raw_writeb(0, RTC_DAY10);
+ __raw_writeb(1, RTC_MON1); __raw_writeb(0, RTC_MON10);
+ __raw_writeb(0, RTC_YEA1); __raw_writeb(0, RTC_YEA10);
+ __raw_writeb(0, RTC_YEA100);
+ __raw_writeb(2, RTC_YEA1000);
+ __raw_writeb(0, RTC_CTL);
+ goto again;
+ }
+
+ spin_unlock(&sh03_rtc_lock);
+
+ tm->tm_sec = sec;
+ tm->tm_min = min;
+ tm->tm_hour = hour;
+ tm->tm_mday = day;
+ tm->tm_mon = mon;
+ tm->tm_year = year - 1900;
+
+ return 0;
+}
+
+static int set_rtc_mmss(struct rtc_time *tm)
+{
+ int retval = 0;
+ int real_seconds, real_minutes, cmos_minutes;
+ int i;
+
+ /* gets recalled with irq locally disabled */
+ spin_lock(&sh03_rtc_lock);
+ for (i = 0 ; i < 1000000 ; i++) /* may take up to 1 second... */
+ if (!(__raw_readb(RTC_CTL) & RTC_BUSY))
+ break;
+ cmos_minutes = (__raw_readb(RTC_MIN1) & 0xf) + (__raw_readb(RTC_MIN10) & 0xf) * 10;
+ real_seconds = tm->tm_sec;
+ real_minutes = tm->tm_min;
+ if (((abs(real_minutes - cmos_minutes) + 15)/30) & 1)
+ real_minutes += 30; /* correct for half hour time zone */
+ real_minutes %= 60;
+
+ if (abs(real_minutes - cmos_minutes) < 30) {
+ __raw_writeb(real_seconds % 10, RTC_SEC1);
+ __raw_writeb(real_seconds / 10, RTC_SEC10);
+ __raw_writeb(real_minutes % 10, RTC_MIN1);
+ __raw_writeb(real_minutes / 10, RTC_MIN10);
+ } else {
+ printk_once(KERN_NOTICE
+ "set_rtc_mmss: can't update from %d to %d\n",
+ cmos_minutes, real_minutes);
+ retval = -EINVAL;
+ }
+ spin_unlock(&sh03_rtc_lock);
+
+ return retval;
+}
+
+int sh03_rtc_settimeofday(struct device *dev, struct rtc_time *tm)
+{
+ return set_rtc_mmss(tm);
+}
+
+static const struct rtc_class_ops rtc_generic_ops = {
+ .read_time = sh03_rtc_gettimeofday,
+ .set_time = sh03_rtc_settimeofday,
+};
+
+static int __init sh03_time_init(void)
+{
+ struct platform_device *pdev;
+
+ pdev = platform_device_register_data(NULL, "rtc-generic", -1,
+ &rtc_generic_ops,
+ sizeof(rtc_generic_ops));
+
+ return PTR_ERR_OR_ZERO(pdev);
+}
+arch_initcall(sh03_time_init);
diff --git a/arch/sh/boards/mach-sh03/setup.c b/arch/sh/boards/mach-sh03/setup.c
new file mode 100644
index 0000000000..3901b6031a
--- /dev/null
+++ b/arch/sh/boards/mach-sh03/setup.c
@@ -0,0 +1,97 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * linux/arch/sh/boards/sh03/setup.c
+ *
+ * Copyright (C) 2004 Interface Co.,Ltd. Saito.K
+ *
+ */
+
+#include <linux/init.h>
+#include <linux/irq.h>
+#include <linux/pci.h>
+#include <linux/platform_device.h>
+#include <linux/ata_platform.h>
+#include <asm/io.h>
+#include <asm/rtc.h>
+#include <mach-sh03/mach/io.h>
+#include <mach-sh03/mach/sh03.h>
+#include <asm/addrspace.h>
+
+static void __init init_sh03_IRQ(void)
+{
+ plat_irq_setup_pins(IRQ_MODE_IRQ);
+}
+
+static struct resource cf_ide_resources[] = {
+ [0] = {
+ .start = 0x1f0,
+ .end = 0x1f0 + 8,
+ .flags = IORESOURCE_IO,
+ },
+ [1] = {
+ .start = 0x1f0 + 0x206,
+ .end = 0x1f0 +8 + 0x206 + 8,
+ .flags = IORESOURCE_IO,
+ },
+ [2] = {
+ .start = IRL2_IRQ,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct platform_device cf_ide_device = {
+ .name = "pata_platform",
+ .id = -1,
+ .num_resources = ARRAY_SIZE(cf_ide_resources),
+ .resource = cf_ide_resources,
+};
+
+static struct resource heartbeat_resources[] = {
+ [0] = {
+ .start = 0xa0800000,
+ .end = 0xa0800000,
+ .flags = IORESOURCE_MEM,
+ },
+};
+
+static struct platform_device heartbeat_device = {
+ .name = "heartbeat",
+ .id = -1,
+ .num_resources = ARRAY_SIZE(heartbeat_resources),
+ .resource = heartbeat_resources,
+};
+
+static struct platform_device *sh03_devices[] __initdata = {
+ &heartbeat_device,
+ &cf_ide_device,
+};
+
+static int __init sh03_devices_setup(void)
+{
+ pgprot_t prot;
+ unsigned long paddrbase;
+ void *cf_ide_base;
+
+ /* open I/O area window */
+ paddrbase = virt_to_phys((void *)PA_AREA5_IO);
+ prot = PAGE_KERNEL_PCC(1, _PAGE_PCC_IO16);
+ cf_ide_base = ioremap_prot(paddrbase, PAGE_SIZE, pgprot_val(prot));
+ if (!cf_ide_base) {
+ printk("allocate_cf_area : can't open CF I/O window!\n");
+ return -ENOMEM;
+ }
+
+ /* IDE cmd address : 0x1f0-0x1f7 and 0x3f6 */
+ cf_ide_resources[0].start += (unsigned long)cf_ide_base;
+ cf_ide_resources[0].end += (unsigned long)cf_ide_base;
+ cf_ide_resources[1].start += (unsigned long)cf_ide_base;
+ cf_ide_resources[1].end += (unsigned long)cf_ide_base;
+
+ return platform_add_devices(sh03_devices, ARRAY_SIZE(sh03_devices));
+}
+device_initcall(sh03_devices_setup);
+
+static struct sh_machine_vector mv_sh03 __initmv = {
+ .mv_name = "Interface (CTP/PCI-SH03)",
+ .mv_init_irq = init_sh03_IRQ,
+};
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-05 21:11:25 +0000