3 files changed, 253 insertions, 0 deletions
diff --git a/arch/sh/boards/mach-se/7206/Makefile b/arch/sh/boards/mach-se/7206/Makefile
new file mode 100644
index 000000000..b40b30853
--- /dev/null
+++ b/arch/sh/boards/mach-se/7206/Makefile
@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Makefile for the 7206 SolutionEngine specific parts of the kernel
+#
+
+obj-y	 := setup.o irq.o
diff --git a/arch/sh/boards/mach-se/7206/irq.c b/arch/sh/boards/mach-se/7206/irq.c
new file mode 100644
index 000000000..2b1537082
--- /dev/null
+++ b/arch/sh/boards/mach-se/7206/irq.c
@@ -0,0 +1,151 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * linux/arch/sh/boards/se/7206/irq.c
+ *
+ * Copyright (C) 2005,2006 Yoshinori Sato
+ *
+ * Hitachi SolutionEngine Support.
+ *
+ */
+#include <linux/init.h>
+#include <linux/irq.h>
+#include <linux/io.h>
+#include <linux/interrupt.h>
+#include <mach-se/mach/se7206.h>
+
+#define INTSTS0 0x31800000
+#define INTSTS1 0x31800002
+#define INTMSK0 0x31800004
+#define INTMSK1 0x31800006
+#define INTSEL  0x31800008
+
+#define IRQ0_IRQ 64
+#define IRQ1_IRQ 65
+#define IRQ3_IRQ 67
+
+#define INTC_IPR01 0xfffe0818
+#define INTC_ICR1  0xfffe0802
+
+static void disable_se7206_irq(struct irq_data *data)
+{
+	unsigned int irq = data->irq;
+	unsigned short val;
+	unsigned short mask = 0xffff ^ (0x0f << 4 * (3 - (IRQ0_IRQ - irq)));
+	unsigned short msk0,msk1;
+
+	/* Set the priority in IPR to 0 */
+	val = __raw_readw(INTC_IPR01);
+	val &= mask;
+	__raw_writew(val, INTC_IPR01);
+	/* FPGA mask set */
+	msk0 = __raw_readw(INTMSK0);
+	msk1 = __raw_readw(INTMSK1);
+
+	switch (irq) {
+	case IRQ0_IRQ:
+		msk0 |= 0x0010;
+		break;
+	case IRQ1_IRQ:
+		msk0 |= 0x000f;
+		break;
+	case IRQ3_IRQ:
+		msk0 |= 0x0f00;
+		msk1 |= 0x00ff;
+		break;
+	}
+	__raw_writew(msk0, INTMSK0);
+	__raw_writew(msk1, INTMSK1);
+}
+
+static void enable_se7206_irq(struct irq_data *data)
+{
+	unsigned int irq = data->irq;
+	unsigned short val;
+	unsigned short value = (0x0001 << 4 * (3 - (IRQ0_IRQ - irq)));
+	unsigned short msk0,msk1;
+
+	/* Set priority in IPR back to original value */
+	val = __raw_readw(INTC_IPR01);
+	val |= value;
+	__raw_writew(val, INTC_IPR01);
+
+	/* FPGA mask reset */
+	msk0 = __raw_readw(INTMSK0);
+	msk1 = __raw_readw(INTMSK1);
+
+	switch (irq) {
+	case IRQ0_IRQ:
+		msk0 &= ~0x0010;
+		break;
+	case IRQ1_IRQ:
+		msk0 &= ~0x000f;
+		break;
+	case IRQ3_IRQ:
+		msk0 &= ~0x0f00;
+		msk1 &= ~0x00ff;
+		break;
+	}
+	__raw_writew(msk0, INTMSK0);
+	__raw_writew(msk1, INTMSK1);
+}
+
+static void eoi_se7206_irq(struct irq_data *data)
+{
+	unsigned short sts0,sts1;
+	unsigned int irq = data->irq;
+
+	if (!irqd_irq_disabled(data) && !irqd_irq_inprogress(data))
+		enable_se7206_irq(data);
+	/* FPGA isr clear */
+	sts0 = __raw_readw(INTSTS0);
+	sts1 = __raw_readw(INTSTS1);
+
+	switch (irq) {
+	case IRQ0_IRQ:
+		sts0 &= ~0x0010;
+		break;
+	case IRQ1_IRQ:
+		sts0 &= ~0x000f;
+		break;
+	case IRQ3_IRQ:
+		sts0 &= ~0x0f00;
+		sts1 &= ~0x00ff;
+		break;
+	}
+	__raw_writew(sts0, INTSTS0);
+	__raw_writew(sts1, INTSTS1);
+}
+
+static struct irq_chip se7206_irq_chip __read_mostly = {
+	.name		= "SE7206-FPGA",
+	.irq_mask	= disable_se7206_irq,
+	.irq_unmask	= enable_se7206_irq,
+	.irq_eoi	= eoi_se7206_irq,
+};
+
+static void make_se7206_irq(unsigned int irq)
+{
+	disable_irq_nosync(irq);
+	irq_set_chip_and_handler_name(irq, &se7206_irq_chip,
+				      handle_level_irq, "level");
+	disable_se7206_irq(irq_get_irq_data(irq));
+}
+
+/*
+ * Initialize IRQ setting
+ */
+void __init init_se7206_IRQ(void)
+{
+	make_se7206_irq(IRQ0_IRQ); /* SMC91C111 */
+	make_se7206_irq(IRQ1_IRQ); /* ATA */
+	make_se7206_irq(IRQ3_IRQ); /* SLOT / PCM */
+
+	__raw_writew(__raw_readw(INTC_ICR1) | 0x000b, INTC_ICR1); /* ICR1 */
+
+	/* FPGA System register setup*/
+	__raw_writew(0x0000,INTSTS0); /* Clear INTSTS0 */
+	__raw_writew(0x0000,INTSTS1); /* Clear INTSTS1 */
+
+	/* IRQ0=LAN, IRQ1=ATA, IRQ3=SLT,PCM */
+	__raw_writew(0x0001,INTSEL);
+}
diff --git a/arch/sh/boards/mach-se/7206/setup.c b/arch/sh/boards/mach-se/7206/setup.c
new file mode 100644
index 000000000..dc55d3a69
--- /dev/null
+++ b/arch/sh/boards/mach-se/7206/setup.c
@@ -0,0 +1,96 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *
+ * linux/arch/sh/boards/se/7206/setup.c
+ *
+ * Copyright (C) 2006  Yoshinori Sato
+ * Copyright (C) 2007 - 2008  Paul Mundt
+ *
+ * Hitachi 7206 SolutionEngine Support.
+ */
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/smc91x.h>
+#include <mach-se/mach/se7206.h>
+#include <asm/io.h>
+#include <asm/machvec.h>
+#include <asm/heartbeat.h>
+
+static struct resource smc91x_resources[] = {
+	[0] = {
+		.name		= "smc91x-regs",
+		.start		= PA_SMSC + 0x300,
+		.end		= PA_SMSC + 0x300 + 0x020 - 1,
+		.flags		= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start		= 64,
+		.end		= 64,
+		.flags		= IORESOURCE_IRQ,
+	},
+};
+
+static struct smc91x_platdata smc91x_info = {
+	.flags	= SMC91X_USE_16BIT,
+};
+
+static struct platform_device smc91x_device = {
+	.name		= "smc91x",
+	.id		= -1,
+	.dev		= {
+		.dma_mask		= NULL,
+		.coherent_dma_mask	= 0xffffffff,
+		.platform_data		= &smc91x_info,
+	},
+	.num_resources	= ARRAY_SIZE(smc91x_resources),
+	.resource	= smc91x_resources,
+};
+
+static unsigned char heartbeat_bit_pos[] = { 8, 9, 10, 11, 12, 13, 14, 15 };
+
+static struct heartbeat_data heartbeat_data = {
+	.bit_pos	= heartbeat_bit_pos,
+	.nr_bits	= ARRAY_SIZE(heartbeat_bit_pos),
+};
+
+static struct resource heartbeat_resource = {
+	.start	= PA_LED,
+	.end	= PA_LED,
+	.flags	= IORESOURCE_MEM | IORESOURCE_MEM_32BIT,
+};
+
+static struct platform_device heartbeat_device = {
+	.name		= "heartbeat",
+	.id		= -1,
+	.dev	= {
+		.platform_data	= &heartbeat_data,
+	},
+	.num_resources	= 1,
+	.resource	= &heartbeat_resource,
+};
+
+static struct platform_device *se7206_devices[] __initdata = {
+	&smc91x_device,
+	&heartbeat_device,
+};
+
+static int __init se7206_devices_setup(void)
+{
+	return platform_add_devices(se7206_devices, ARRAY_SIZE(se7206_devices));
+}
+device_initcall(se7206_devices_setup);
+
+static int se7206_mode_pins(void)
+{
+	return MODE_PIN1 | MODE_PIN2;
+}
+
+/*
+ * The Machine Vector
+ */
+
+static struct sh_machine_vector mv_se __initmv = {
+	.mv_name		= "SolutionEngine",
+	.mv_init_irq		= init_se7206_IRQ,
+	.mv_mode_pins		= se7206_mode_pins,
+};