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 000000000000..4291069c0b4f
--- /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 000000000000..646661a146ad
--- /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 000000000000..b41e3d4ea37c
--- /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 000000000000..6a439cf83e46
--- /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 000000000000..787322291fb3
--- /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)