sh: SH7780 Solution Engine board support.

This adds support for the SH7780-based Solution Engine reference board.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.zh@hitachi.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

3 files changed, 221 insertions, 0 deletions

diff --git a/arch/sh/boards/se/7780/Makefile b/arch/sh/boards/se/7780/Makefile
new file mode 100644
index 0000000..6b88ada
--- /dev/null
+++ b/arch/sh/boards/se/7780/Makefile
@@ -0,0 +1,10 @@
+#
+# Makefile for the HITACHI UL SolutionEngine 7780 specific parts of the kernel
+#
+# 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.
+#
+#
+
+obj-y	 := setup.o irq.o
diff --git a/arch/sh/boards/se/7780/irq.c b/arch/sh/boards/se/7780/irq.c
new file mode 100644
index 0000000..3d0625c
--- /dev/null
+++ b/arch/sh/boards/se/7780/irq.c
@@ -0,0 +1,89 @@
+/*
+ * linux/arch/sh/boards/se/7780/irq.c
+ *
+ * Copyright (C) 2006,2007  Nobuhiro Iwamatsu
+ *
+ * Hitachi UL SolutionEngine 7780 Support.
+ *
+ * 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/irq.h>
+#include <linux/interrupt.h>
+#include <asm/irq.h>
+#include <asm/io.h>
+#include <asm/se7780.h>
+
+#define INTC_INTMSK0             0xFFD00044
+#define INTC_INTMSKCLR0          0xFFD00064
+
+static void disable_se7780_irq(unsigned int irq)
+{
+	struct intc2_data *p = get_irq_chip_data(irq);
+	ctrl_outl(1 << p->msk_shift, INTC_INTMSK0 + p->msk_offset);
+}
+
+static void enable_se7780_irq(unsigned int irq)
+{
+	struct intc2_data *p = get_irq_chip_data(irq);
+	ctrl_outl(1 << p->msk_shift, INTC_INTMSKCLR0 + p->msk_offset);
+}
+
+static struct irq_chip se7780_irq_chip __read_mostly = {
+	.name           = "SE7780",
+	.mask           = disable_se7780_irq,
+	.unmask         = enable_se7780_irq,
+	.mask_ack       = disable_se7780_irq,
+};
+
+static struct intc2_data intc2_irq_table[] = {
+	{ 2,  0, 31, 0, 31, 3 }, /* daughter board EXTINT1 */
+	{ 4,  0, 30, 0, 30, 3 }, /* daughter board EXTINT2 */
+	{ 6,  0, 29, 0, 29, 3 }, /* daughter board EXTINT3 */
+	{ 8,  0, 28, 0, 28, 3 }, /* SMC 91C111 (LAN) */
+	{ 10, 0, 27, 0, 27, 3 }, /* daughter board EXTINT4 */
+	{ 4,  0, 30, 0, 30, 3 }, /* daughter board EXTINT5 */
+	{ 2,  0, 31, 0, 31, 3 }, /* daughter board EXTINT6 */
+	{ 2,  0, 31, 0, 31, 3 }, /* daughter board EXTINT7 */
+	{ 2,  0, 31, 0, 31, 3 }, /* daughter board EXTINT8 */
+	{ 0 , 0, 24, 0, 24, 3 }, /* SM501 */
+};
+
+/*
+ * Initialize IRQ setting
+ */
+void __init init_se7780_IRQ(void)
+{
+	int i ;
+
+	/* enable all interrupt at FPGA */
+	ctrl_outw(0, FPGA_INTMSK1);
+	/* mask SM501 interrupt */
+	ctrl_outw((ctrl_inw(FPGA_INTMSK1) | 0x0002), FPGA_INTMSK1);
+	/* enable all interrupt at FPGA */
+	ctrl_outw(0, FPGA_INTMSK2);
+
+	/* set FPGA INTSEL register */
+	/* FPGA + 0x06 */
+	ctrl_outw( ((IRQPIN_SM501 << IRQPOS_SM501) |
+		(IRQPIN_SMC91CX << IRQPOS_SMC91CX)), FPGA_INTSEL1);
+
+	/* FPGA + 0x08 */
+	ctrl_outw(((IRQPIN_EXTINT4 << IRQPOS_EXTINT4) |
+		(IRQPIN_EXTINT3 << IRQPOS_EXTINT3) |
+		(IRQPIN_EXTINT2 << IRQPOS_EXTINT2) |
+		(IRQPIN_EXTINT1 << IRQPOS_EXTINT1)), FPGA_INTSEL2);
+
+	/* FPGA + 0x0A */
+	ctrl_outw((IRQPIN_PCCPW << IRQPOS_PCCPW), FPGA_INTSEL3);
+
+	for (i = 0; i < ARRAY_SIZE(intc2_irq_table); i++) {
+		disable_irq_nosync(intc2_irq_table[i].irq);
+		set_irq_chip_and_handler_name( intc2_irq_table[i].irq, &se7780_irq_chip,
+			handle_level_irq, "level");
+		set_irq_chip_data( intc2_irq_table[i].irq, &intc2_irq_table[i] );
+		disable_se7780_irq(intc2_irq_table[i].irq);
+	}
+}
diff --git a/arch/sh/boards/se/7780/setup.c b/arch/sh/boards/se/7780/setup.c
new file mode 100644
index 0000000..df7d08a
--- /dev/null
+++ b/arch/sh/boards/se/7780/setup.c
@@ -0,0 +1,122 @@
+/*
+ * linux/arch/sh/boards/se/7780/setup.c
+ *
+ * Copyright (C) 2006,2007  Nobuhiro Iwamatsu
+ *
+ * Hitachi UL SolutionEngine 7780 Support.
+ *
+ * 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/platform_device.h>
+#include <asm/machvec.h>
+#include <asm/se7780.h>
+#include <asm/io.h>
+
+/* Heartbeat */
+static unsigned char heartbeat_bit_pos[] = { 0, 1, 2, 3, 4, 5, 6, 7 };
+
+static struct resource heartbeat_resources[] = {
+	[0] = {
+		.start  = PA_LED,
+		.end    = PA_LED + ARRAY_SIZE(heartbeat_bit_pos) - 1,
+		.flags  = IORESOURCE_MEM,
+	},
+};
+
+static struct platform_device heartbeat_device = {
+	.name           = "heartbeat",
+	.id             = -1,
+	.dev    = {
+		.platform_data  = heartbeat_bit_pos,
+	},
+	.num_resources  = ARRAY_SIZE(heartbeat_resources),
+	.resource       = heartbeat_resources,
+};
+
+/* SMC91x */
+static struct resource smc91x_eth_resources[] = {
+	[0] = {
+		.name   = "smc91x-regs" ,
+		.start  = PA_LAN + 0x300,
+		.end    = PA_LAN + 0x300 + 0x10 ,
+		.flags  = IORESOURCE_MEM,
+	},
+	[1] = {
+		.start  = SMC_IRQ,
+		.end    = SMC_IRQ,
+		.flags  = IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device smc91x_eth_device = {
+	.name           = "smc91x",
+	.id             = 0,
+	.dev = {
+		.dma_mask               = NULL,         /* don't use dma */
+		.coherent_dma_mask      = 0xffffffff,
+	},
+	.num_resources  = ARRAY_SIZE(smc91x_eth_resources),
+	.resource       = smc91x_eth_resources,
+};
+
+static struct platform_device *se7780_devices[] __initdata = {
+	&heartbeat_device,
+	&smc91x_eth_device,
+};
+
+static int __init se7780_devices_setup(void)
+{
+	return platform_add_devices(se7780_devices,
+		ARRAY_SIZE(se7780_devices));
+}
+device_initcall(se7780_devices_setup);
+
+#define GPIO_PHCR        0xFFEA000E
+#define GPIO_PMSELR      0xFFEA0080
+#define GPIO_PECR        0xFFEA0008
+
+static void __init se7780_setup(char **cmdline_p)
+{
+	/* "SH-Linux" on LED Display */
+	ctrl_outw( 'S' , PA_LED_DISP + (DISP_SEL0_ADDR << 1) );
+	ctrl_outw( 'H' , PA_LED_DISP + (DISP_SEL1_ADDR << 1) );
+	ctrl_outw( '-' , PA_LED_DISP + (DISP_SEL2_ADDR << 1) );
+	ctrl_outw( 'L' , PA_LED_DISP + (DISP_SEL3_ADDR << 1) );
+	ctrl_outw( 'i' , PA_LED_DISP + (DISP_SEL4_ADDR << 1) );
+	ctrl_outw( 'n' , PA_LED_DISP + (DISP_SEL5_ADDR << 1) );
+	ctrl_outw( 'u' , PA_LED_DISP + (DISP_SEL6_ADDR << 1) );
+	ctrl_outw( 'x' , PA_LED_DISP + (DISP_SEL7_ADDR << 1) );
+
+	printk(KERN_INFO "Hitachi UL Solutions Engine 7780SE03 support.\n");
+
+	/*
+	 * PCI REQ/GNT setting
+	 *   REQ0/GNT0 -> USB
+	 *   REQ1/GNT1 -> PC Card
+	 *   REQ2/GNT2 -> Serial ATA
+	 *   REQ3/GNT3 -> PCI slot
+	 */
+	ctrl_outw(0x0213, FPGA_REQSEL);
+
+	/* GPIO setting */
+	ctrl_outw(0x0000, GPIO_PECR);
+	ctrl_outw(ctrl_inw(GPIO_PHCR)&0xfff3, GPIO_PHCR);
+	ctrl_outw(0x0c00, GPIO_PMSELR);
+
+	/* iVDR Power ON */
+	ctrl_outw(0x0001, FPGA_IVDRPW);
+}
+
+/*
+ * The Machine Vector
+ */
+struct sh_machine_vector mv_se7780 __initmv = {
+	.mv_name                = "Solution Engine 7780" ,
+	.mv_setup               = se7780_setup ,
+	.mv_nr_irqs		= 111 ,
+	.mv_init_irq		= init_se7780_IRQ,
+};
+ALIAS_MV(se7780)