sh: Solution Engine SH7343 board support.

This adds support for the SE7343 board.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

5 files changed, 605 insertions, 0 deletions

diff --git a/arch/sh/boards/se/7343/Makefile b/arch/sh/boards/se/7343/Makefile
new file mode 100644
index 0000000..4291069
--- /dev/null
+++ b/arch/sh/boards/se/7343/Makefile
@@ -0,0 +1,7 @@
+#
+# Makefile for the 7343 SolutionEngine specific parts of the kernel
+#
+
+obj-y	 := setup.o io.o irq.o
+
+obj-$(CONFIG_HEARTBEAT) += led.o
diff --git a/arch/sh/boards/se/7343/io.c b/arch/sh/boards/se/7343/io.c
new file mode 100644
index 0000000..646661a
--- /dev/null
+++ b/arch/sh/boards/se/7343/io.c
@@ -0,0 +1,275 @@
+/*
+ * arch/sh/boards/se/7343/io.c
+ *
+ * I/O routine for SH-Mobile3AS 7343 SolutionEngine.
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <asm/io.h>
+#include <asm/mach/se7343.h>
+
+#define badio(fn, a) panic("bad i/o operation %s for %08lx.", #fn, a)
+
+struct iop {
+	unsigned long start, end;
+	unsigned long base;
+	struct iop *(*check) (struct iop * p, unsigned long port);
+	unsigned char (*inb) (struct iop * p, unsigned long port);
+	unsigned short (*inw) (struct iop * p, unsigned long port);
+	void (*outb) (struct iop * p, unsigned char value, unsigned long port);
+	void (*outw) (struct iop * p, unsigned short value, unsigned long port);
+};
+
+struct iop *
+simple_check(struct iop *p, unsigned long port)
+{
+	static int count;
+
+	if (count < 100)
+		count++;
+
+	port &= 0xFFFF;
+
+	if ((p->start <= port) && (port <= p->end))
+		return p;
+	else
+		badio(check, port);
+}
+
+struct iop *
+ide_check(struct iop *p, unsigned long port)
+{
+	if (((0x1f0 <= port) && (port <= 0x1f7)) || (port == 0x3f7))
+		return p;
+	return NULL;
+}
+
+unsigned char
+simple_inb(struct iop *p, unsigned long port)
+{
+	return *(unsigned char *) (p->base + port);
+}
+
+unsigned short
+simple_inw(struct iop *p, unsigned long port)
+{
+	return *(unsigned short *) (p->base + port);
+}
+
+void
+simple_outb(struct iop *p, unsigned char value, unsigned long port)
+{
+	*(unsigned char *) (p->base + port) = value;
+}
+
+void
+simple_outw(struct iop *p, unsigned short value, unsigned long port)
+{
+	*(unsigned short *) (p->base + port) = value;
+}
+
+unsigned char
+pcc_inb(struct iop *p, unsigned long port)
+{
+	unsigned long addr = p->base + port + 0x40000;
+	unsigned long v;
+
+	if (port & 1)
+		addr += 0x00400000;
+	v = *(volatile unsigned char *) addr;
+	return v;
+}
+
+void
+pcc_outb(struct iop *p, unsigned char value, unsigned long port)
+{
+	unsigned long addr = p->base + port + 0x40000;
+
+	if (port & 1)
+		addr += 0x00400000;
+	*(volatile unsigned char *) addr = value;
+}
+
+unsigned char
+bad_inb(struct iop *p, unsigned long port)
+{
+	badio(inb, port);
+}
+
+void
+bad_outb(struct iop *p, unsigned char value, unsigned long port)
+{
+	badio(inw, port);
+}
+
+#ifdef CONFIG_SMC91X
+/* MSTLANEX01 LAN at 0xb400:0000 */
+static struct iop laniop = {
+	.start = 0x00,
+	.end = 0x0F,
+	.base = 0x04000000,
+	.check = simple_check,
+	.inb = simple_inb,
+	.inw = simple_inw,
+	.outb = simple_outb,
+	.outw = simple_outw,
+};
+#endif
+
+#ifdef CONFIG_NE2000
+/* NE2000 pc card NIC */
+static struct iop neiop = {
+	.start = 0x280,
+	.end = 0x29f,
+	.base = 0xb0600000 + 0x80,	/* soft 0x280 -> hard 0x300 */
+	.check = simple_check,
+	.inb = pcc_inb,
+	.inw = simple_inw,
+	.outb = pcc_outb,
+	.outw = simple_outw,
+};
+#endif
+
+#ifdef CONFIG_IDE
+/* CF in CF slot */
+static struct iop cfiop = {
+	.base = 0xb0600000,
+	.check = ide_check,
+	.inb = pcc_inb,
+	.inw = simple_inw,
+	.outb = pcc_outb,
+	.outw = simple_outw,
+};
+#endif
+
+static __inline__ struct iop *
+port2iop(unsigned long port)
+{
+	if (0) ;
+#if defined(CONFIG_SMC91X)
+	else if (laniop.check(&laniop, port))
+		return &laniop;
+#endif
+#if defined(CONFIG_NE2000)
+	else if (neiop.check(&neiop, port))
+		return &neiop;
+#endif
+#if defined(CONFIG_IDE)
+	else if (cfiop.check(&cfiop, port))
+		return &cfiop;
+#endif
+	else
+		return NULL;
+}
+
+static inline void
+delay(void)
+{
+	ctrl_inw(0xac000000);
+	ctrl_inw(0xac000000);
+}
+
+unsigned char
+sh7343se_inb(unsigned long port)
+{
+	struct iop *p = port2iop(port);
+	return (p->inb) (p, port);
+}
+
+unsigned char
+sh7343se_inb_p(unsigned long port)
+{
+	unsigned char v = sh7343se_inb(port);
+	delay();
+	return v;
+}
+
+unsigned short
+sh7343se_inw(unsigned long port)
+{
+	struct iop *p = port2iop(port);
+	return (p->inw) (p, port);
+}
+
+unsigned int
+sh7343se_inl(unsigned long port)
+{
+	badio(inl, port);
+}
+
+void
+sh7343se_outb(unsigned char value, unsigned long port)
+{
+	struct iop *p = port2iop(port);
+	(p->outb) (p, value, port);
+}
+
+void
+sh7343se_outb_p(unsigned char value, unsigned long port)
+{
+	sh7343se_outb(value, port);
+	delay();
+}
+
+void
+sh7343se_outw(unsigned short value, unsigned long port)
+{
+	struct iop *p = port2iop(port);
+	(p->outw) (p, value, port);
+}
+
+void
+sh7343se_outl(unsigned int value, unsigned long port)
+{
+	badio(outl, port);
+}
+
+void
+sh7343se_insb(unsigned long port, void *addr, unsigned long count)
+{
+	unsigned char *a = addr;
+	struct iop *p = port2iop(port);
+	while (count--)
+		*a++ = (p->inb) (p, port);
+}
+
+void
+sh7343se_insw(unsigned long port, void *addr, unsigned long count)
+{
+	unsigned short *a = addr;
+	struct iop *p = port2iop(port);
+	while (count--)
+		*a++ = (p->inw) (p, port);
+}
+
+void
+sh7343se_insl(unsigned long port, void *addr, unsigned long count)
+{
+	badio(insl, port);
+}
+
+void
+sh7343se_outsb(unsigned long port, const void *addr, unsigned long count)
+{
+	unsigned char *a = (unsigned char *) addr;
+	struct iop *p = port2iop(port);
+	while (count--)
+		(p->outb) (p, *a++, port);
+}
+
+void
+sh7343se_outsw(unsigned long port, const void *addr, unsigned long count)
+{
+	unsigned short *a = (unsigned short *) addr;
+	struct iop *p = port2iop(port);
+	while (count--)
+		(p->outw) (p, *a++, port);
+}
+
+void
+sh7343se_outsl(unsigned long port, const void *addr, unsigned long count)
+{
+	badio(outsw, port);
+}
diff --git a/arch/sh/boards/se/7343/irq.c b/arch/sh/boards/se/7343/irq.c
new file mode 100644
index 0000000..b41e3d4
--- /dev/null
+++ b/arch/sh/boards/se/7343/irq.c
@@ -0,0 +1,193 @@
+/*
+ * arch/sh/boards/se/7343/irq.c
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <asm/irq.h>
+#include <asm/io.h>
+#include <asm/mach/se7343.h>
+
+static void
+disable_intreq_irq(unsigned int irq)
+{
+	int bit = irq - OFFCHIP_IRQ_BASE;
+	u16 val;
+
+	val = ctrl_inw(PA_CPLD_IMSK);
+	val |= 1 << bit;
+	ctrl_outw(val, PA_CPLD_IMSK);
+}
+
+static void
+enable_intreq_irq(unsigned int irq)
+{
+	int bit = irq - OFFCHIP_IRQ_BASE;
+	u16 val;
+
+	val = ctrl_inw(PA_CPLD_IMSK);
+	val &= ~(1 << bit);
+	ctrl_outw(val, PA_CPLD_IMSK);
+}
+
+static void
+mask_and_ack_intreq_irq(unsigned int irq)
+{
+	disable_intreq_irq(irq);
+}
+
+static unsigned int
+startup_intreq_irq(unsigned int irq)
+{
+	enable_intreq_irq(irq);
+	return 0;
+}
+
+static void
+shutdown_intreq_irq(unsigned int irq)
+{
+	disable_intreq_irq(irq);
+}
+
+static void
+end_intreq_irq(unsigned int irq)
+{
+	if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS)))
+		enable_intreq_irq(irq);
+}
+
+static struct hw_interrupt_type intreq_irq_type = {
+	.typename = "FPGA-IRQ",
+	.startup = startup_intreq_irq,
+	.shutdown = shutdown_intreq_irq,
+	.enable = enable_intreq_irq,
+	.disable = disable_intreq_irq,
+	.ack = mask_and_ack_intreq_irq,
+	.end = end_intreq_irq
+};
+
+static void
+make_intreq_irq(unsigned int irq)
+{
+	disable_irq_nosync(irq);
+	irq_desc[irq].handler = &intreq_irq_type;
+	disable_intreq_irq(irq);
+}
+
+int
+shmse_irq_demux(int irq)
+{
+	int bit;
+	volatile u16 val;
+
+	if (irq == IRQ5_IRQ) {
+		/* Read status Register */
+		val = ctrl_inw(PA_CPLD_ST);
+		bit = ffs(val);
+		if (bit != 0)
+			return OFFCHIP_IRQ_BASE + bit - 1;
+	}
+	return irq;
+}
+
+/* IRQ5 is multiplexed between the following sources:
+ * 1. PC Card socket
+ * 2. Extension slot
+ * 3. USB Controller
+ * 4. Serial Controller
+ *
+ * We configure IRQ5 as a cascade IRQ.
+ */
+static struct irqaction irq5 = { no_action, 0, CPU_MASK_NONE, "IRQ5-cascade",
+				NULL, NULL};
+
+/*
+ * Initialize IRQ setting
+ */
+void __init
+init_7343se_IRQ(void)
+{
+	/* Setup Multiplexed interrupts */
+	ctrl_outw(8, PA_CPLD_MODESET);	/* Set all CPLD interrupts to active
+					 * low.
+					 */
+	/* Mask all CPLD controller interrupts */
+	ctrl_outw(0x0fff, PA_CPLD_IMSK);
+
+	/* PC Card interrupts */
+	make_intreq_irq(PC_IRQ0);
+	make_intreq_irq(PC_IRQ1);
+	make_intreq_irq(PC_IRQ2);
+	make_intreq_irq(PC_IRQ3);
+
+	/* Extension Slot Interrupts */
+	make_intreq_irq(EXT_IRQ0);
+	make_intreq_irq(EXT_IRQ1);
+	make_intreq_irq(EXT_IRQ2);
+	make_intreq_irq(EXT_IRQ3);
+
+	/* USB Controller interrupts */
+	make_intreq_irq(USB_IRQ0);
+	make_intreq_irq(USB_IRQ1);
+
+	/* Serial Controller interrupts */
+	make_intreq_irq(UART_IRQ0);
+	make_intreq_irq(UART_IRQ1);
+
+	/* Setup all external interrupts to be active low */
+	ctrl_outw(0xaaaa, INTC_ICR1);
+
+	make_ipr_irq(IRQ5_IRQ, IRQ5_IPR_ADDR+2, IRQ5_IPR_POS, IRQ5_PRIORITY);
+	setup_irq(IRQ5_IRQ, &irq5);
+	/* Set port control to use IRQ5 */
+	*(u16 *)0xA4050108 &= ~0xc;
+
+	make_ipr_irq(SIOF0_IRQ, SIOF0_IPR_ADDR, SIOF0_IPR_POS, SIOF0_PRIORITY);
+	make_ipr_irq(VPU_IRQ, VPU_IPR_ADDR, VPU_IPR_POS, 8);
+
+	ctrl_outb(0x0f, INTC_IMCR5);	/* enable SCIF IRQ */
+
+	make_ipr_irq(DMTE0_IRQ, DMA1_IPR_ADDR, DMA1_IPR_POS, DMA1_PRIORITY);
+	make_ipr_irq(DMTE1_IRQ, DMA1_IPR_ADDR, DMA1_IPR_POS, DMA1_PRIORITY);
+	make_ipr_irq(DMTE2_IRQ, DMA1_IPR_ADDR, DMA1_IPR_POS, DMA1_PRIORITY);
+	make_ipr_irq(DMTE3_IRQ, DMA1_IPR_ADDR, DMA1_IPR_POS, DMA1_PRIORITY);
+	make_ipr_irq(DMTE4_IRQ, DMA2_IPR_ADDR, DMA2_IPR_POS, DMA2_PRIORITY);
+	make_ipr_irq(DMTE5_IRQ, DMA2_IPR_ADDR, DMA2_IPR_POS, DMA2_PRIORITY);
+
+	/* I2C block */
+	make_ipr_irq(IIC0_ALI_IRQ, IIC0_IPR_ADDR, IIC0_IPR_POS, IIC0_PRIORITY);
+	make_ipr_irq(IIC0_TACKI_IRQ, IIC0_IPR_ADDR, IIC0_IPR_POS,
+		     IIC0_PRIORITY);
+	make_ipr_irq(IIC0_WAITI_IRQ, IIC0_IPR_ADDR, IIC0_IPR_POS,
+		     IIC0_PRIORITY);
+	make_ipr_irq(IIC0_DTEI_IRQ, IIC0_IPR_ADDR, IIC0_IPR_POS, IIC0_PRIORITY);
+
+	make_ipr_irq(IIC1_ALI_IRQ, IIC1_IPR_ADDR, IIC1_IPR_POS, IIC1_PRIORITY);
+	make_ipr_irq(IIC1_TACKI_IRQ, IIC1_IPR_ADDR, IIC1_IPR_POS,
+		     IIC1_PRIORITY);
+	make_ipr_irq(IIC1_WAITI_IRQ, IIC1_IPR_ADDR, IIC1_IPR_POS,
+		     IIC1_PRIORITY);
+	make_ipr_irq(IIC1_DTEI_IRQ, IIC1_IPR_ADDR, IIC1_IPR_POS, IIC1_PRIORITY);
+
+	/* SIOF */
+	make_ipr_irq(SIOF0_IRQ, SIOF0_IPR_ADDR, SIOF0_IPR_POS, SIOF0_PRIORITY);
+
+	/* SIU */
+	make_ipr_irq(SIU_IRQ, SIU_IPR_ADDR, SIU_IPR_POS, SIU_PRIORITY);
+
+	/* VIO interrupt */
+	make_ipr_irq(CEU_IRQ, VIO_IPR_ADDR, VIO_IPR_POS, VIO_PRIORITY);
+	make_ipr_irq(BEU_IRQ, VIO_IPR_ADDR, VIO_IPR_POS, VIO_PRIORITY);
+	make_ipr_irq(VEU_IRQ, VIO_IPR_ADDR, VIO_IPR_POS, VIO_PRIORITY);
+
+	/*MFI interrupt*/
+
+	make_ipr_irq(MFI_IRQ, MFI_IPR_ADDR, MFI_IPR_POS, MFI_PRIORITY);
+
+	/* LCD controller */
+	make_ipr_irq(LCDC_IRQ, LCDC_IPR_ADDR, LCDC_IPR_POS, LCDC_PRIORITY);
+	ctrl_outw(0x2000, PA_MRSHPC + 0x0c);	/* mrshpc irq enable */
+}
diff --git a/arch/sh/boards/se/7343/led.c b/arch/sh/boards/se/7343/led.c
new file mode 100644
index 0000000..6a439cf
--- /dev/null
+++ b/arch/sh/boards/se/7343/led.c
@@ -0,0 +1,46 @@
+/*
+ * arch/sh/boards/se/7343/led.c
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/sched.h>
+#include <asm/mach/se7343.h>
+
+/* Cycle the LED's in the clasic Knightrider/Sun pattern */
+void heartbeat_7343se(void)
+{
+	static unsigned int cnt = 0, period = 0;
+	volatile unsigned short *p = (volatile unsigned short *) PA_LED;
+	static unsigned bit = 0, up = 1;
+
+	cnt += 1;
+	if (cnt < period) {
+		return;
+	}
+
+	cnt = 0;
+
+	/* Go through the points (roughly!):
+	 * f(0)=10, f(1)=16, f(2)=20, f(5)=35,f(inf)->110
+	 */
+	period = 110 - ((300 << FSHIFT) / ((avenrun[0] / 5) + (3 << FSHIFT)));
+
+	if (up) {
+		if (bit == 7) {
+			bit--;
+			up = 0;
+		} else {
+			bit++;
+		}
+	} else {
+		if (bit == 0) {
+			bit++;
+			up = 1;
+		} else {
+			bit--;
+		}
+	}
+	*p = 1 << (bit + LED_SHIFT);
+
+}
diff --git a/arch/sh/boards/se/7343/setup.c b/arch/sh/boards/se/7343/setup.c
new file mode 100644
index 0000000..7873222
--- /dev/null
+++ b/arch/sh/boards/se/7343/setup.c
@@ -0,0 +1,84 @@
+#include <linux/config.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <asm/machvec.h>
+#include <asm/mach/se7343.h>
+#include <asm/irq.h>
+
+void heartbeat_7343se(void);
+void init_7343se_IRQ(void);
+
+static struct resource smc91x_resources[] = {
+	[0] = {
+		.start	= 0x10000000,
+		.end	= 0x1000000F,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		/*
+		 * shared with other devices via externel
+		 * interrupt controller in FPGA...
+		 */
+		.start	= EXT_IRQ2,
+		.end	= EXT_IRQ2,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device smc91x_device = {
+	.name		= "smc91x",
+	.id		= 0,
+	.num_resources	= ARRAY_SIZE(smc91x_resources),
+	.resource	= smc91x_resources,
+};
+
+static struct platform_device *smc91x_platform_devices[] __initdata = {
+	&smc91x_device,
+};
+
+static int __init sh7343se_devices_setup(void)
+{
+	return platform_add_devices(smc91x_platform_devices,
+				    ARRAY_SIZE(smc91x_platform_devices));
+}
+
+static void __init sh7343se_setup(char **cmdline_p)
+{
+	device_initcall(sh7343se_devices_setup);
+}
+
+/*
+ * The Machine Vector
+ */
+struct sh_machine_vector mv_7343se __initmv = {
+	.mv_name = "SolutionEngine 7343",
+	.mv_setup = sh7343se_setup,
+	.mv_nr_irqs = 108,
+	.mv_inb = sh7343se_inb,
+	.mv_inw = sh7343se_inw,
+	.mv_inl = sh7343se_inl,
+	.mv_outb = sh7343se_outb,
+	.mv_outw = sh7343se_outw,
+	.mv_outl = sh7343se_outl,
+
+	.mv_inb_p = sh7343se_inb_p,
+	.mv_inw_p = sh7343se_inw,
+	.mv_inl_p = sh7343se_inl,
+	.mv_outb_p = sh7343se_outb_p,
+	.mv_outw_p = sh7343se_outw,
+	.mv_outl_p = sh7343se_outl,
+
+	.mv_insb = sh7343se_insb,
+	.mv_insw = sh7343se_insw,
+	.mv_insl = sh7343se_insl,
+	.mv_outsb = sh7343se_outsb,
+	.mv_outsw = sh7343se_outsw,
+	.mv_outsl = sh7343se_outsl,
+
+	.mv_init_irq = init_7343se_IRQ,
+	.mv_irq_demux = shmse_irq_demux,
+#ifdef CONFIG_HEARTBEAT
+	.mv_heartbeat = heartbeat_7343se,
+#endif
+};
+ALIAS_MV(7343se)