setup-sh7203.c

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/*
 * SH7203 and SH7263 Setup
 *
 *  Copyright (C) 2007 - 2009  Paul Mundt
 *
 * 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/platform_device.h>
#include <linux/init.h>
#include <linux/serial.h>
#include <linux/serial_sci.h>
#include <linux/sh_timer.h>
#include <linux/io.h>

enum {
    UNUSED = 0,

    /* interrupt sources */
    IRQ0, IRQ1, IRQ2, IRQ3, IRQ4, IRQ5, IRQ6, IRQ7,
    PINT0, PINT1, PINT2, PINT3, PINT4, PINT5, PINT6, PINT7,
    DMAC0, DMAC1, DMAC2, DMAC3, DMAC4, DMAC5, DMAC6, DMAC7,
    USB, LCDC, CMT0, CMT1, BSC, WDT,

    MTU0_ABCD, MTU0_VEF, MTU1_AB, MTU1_VU, MTU2_AB, MTU2_VU,
    MTU3_ABCD, MTU4_ABCD, MTU2_TCI3V, MTU2_TCI4V,

    ADC_ADI,

    IIC30, IIC31, IIC32, IIC33,
    SCIF0, SCIF1, SCIF2, SCIF3,

    SSU0, SSU1,

    SSI0_SSII, SSI1_SSII, SSI2_SSII, SSI3_SSII,

    /* ROM-DEC, SDHI, SRC, and IEB are SH7263 specific */
    ROMDEC, FLCTL, SDHI, RTC, RCAN0, RCAN1,
    SRC, IEBI,

    /* interrupt groups */
    PINT,
};

static struct intc_vect vectors[] __initdata = {
    INTC_IRQ(IRQ0, 64), INTC_IRQ(IRQ1, 65),
    INTC_IRQ(IRQ2, 66), INTC_IRQ(IRQ3, 67),
    INTC_IRQ(IRQ4, 68), INTC_IRQ(IRQ5, 69),
    INTC_IRQ(IRQ6, 70), INTC_IRQ(IRQ7, 71),
    INTC_IRQ(PINT0, 80), INTC_IRQ(PINT1, 81),
    INTC_IRQ(PINT2, 82), INTC_IRQ(PINT3, 83),
    INTC_IRQ(PINT4, 84), INTC_IRQ(PINT5, 85),
    INTC_IRQ(PINT6, 86), INTC_IRQ(PINT7, 87),
    INTC_IRQ(DMAC0, 108), INTC_IRQ(DMAC0, 109),
    INTC_IRQ(DMAC1, 112), INTC_IRQ(DMAC1, 113),
    INTC_IRQ(DMAC2, 116), INTC_IRQ(DMAC2, 117),
    INTC_IRQ(DMAC3, 120), INTC_IRQ(DMAC3, 121),
    INTC_IRQ(DMAC4, 124), INTC_IRQ(DMAC4, 125),
    INTC_IRQ(DMAC5, 128), INTC_IRQ(DMAC5, 129),
    INTC_IRQ(DMAC6, 132), INTC_IRQ(DMAC6, 133),
    INTC_IRQ(DMAC7, 136), INTC_IRQ(DMAC7, 137),
    INTC_IRQ(USB, 140), INTC_IRQ(LCDC, 141),
    INTC_IRQ(CMT0, 142), INTC_IRQ(CMT1, 143),
    INTC_IRQ(BSC, 144), INTC_IRQ(WDT, 145),
    INTC_IRQ(MTU0_ABCD, 146), INTC_IRQ(MTU0_ABCD, 147),
    INTC_IRQ(MTU0_ABCD, 148), INTC_IRQ(MTU0_ABCD, 149),
    INTC_IRQ(MTU0_VEF, 150),
    INTC_IRQ(MTU0_VEF, 151), INTC_IRQ(MTU0_VEF, 152),
    INTC_IRQ(MTU1_AB, 153), INTC_IRQ(MTU1_AB, 154),
    INTC_IRQ(MTU1_VU, 155), INTC_IRQ(MTU1_VU, 156),
    INTC_IRQ(MTU2_AB, 157), INTC_IRQ(MTU2_AB, 158),
    INTC_IRQ(MTU2_VU, 159), INTC_IRQ(MTU2_VU, 160),
    INTC_IRQ(MTU3_ABCD, 161), INTC_IRQ(MTU3_ABCD, 162),
    INTC_IRQ(MTU3_ABCD, 163), INTC_IRQ(MTU3_ABCD, 164),
    INTC_IRQ(MTU2_TCI3V, 165),
    INTC_IRQ(MTU4_ABCD, 166), INTC_IRQ(MTU4_ABCD, 167),
    INTC_IRQ(MTU4_ABCD, 168), INTC_IRQ(MTU4_ABCD, 169),
    INTC_IRQ(MTU2_TCI4V, 170),
    INTC_IRQ(ADC_ADI, 171),
    INTC_IRQ(IIC30, 172), INTC_IRQ(IIC30, 173),
    INTC_IRQ(IIC30, 174), INTC_IRQ(IIC30, 175),
    INTC_IRQ(IIC30, 176),
    INTC_IRQ(IIC31, 177), INTC_IRQ(IIC31, 178),
    INTC_IRQ(IIC31, 179), INTC_IRQ(IIC31, 180),
    INTC_IRQ(IIC31, 181),
    INTC_IRQ(IIC32, 182), INTC_IRQ(IIC32, 183),
    INTC_IRQ(IIC32, 184), INTC_IRQ(IIC32, 185),
    INTC_IRQ(IIC32, 186),
    INTC_IRQ(IIC33, 187), INTC_IRQ(IIC33, 188),
    INTC_IRQ(IIC33, 189), INTC_IRQ(IIC33, 190),
    INTC_IRQ(IIC33, 191),
    INTC_IRQ(SCIF0, 192), INTC_IRQ(SCIF0, 193),
    INTC_IRQ(SCIF0, 194), INTC_IRQ(SCIF0, 195),
    INTC_IRQ(SCIF1, 196), INTC_IRQ(SCIF1, 197),
    INTC_IRQ(SCIF1, 198), INTC_IRQ(SCIF1, 199),
    INTC_IRQ(SCIF2, 200), INTC_IRQ(SCIF2, 201),
    INTC_IRQ(SCIF2, 202), INTC_IRQ(SCIF2, 203),
    INTC_IRQ(SCIF3, 204), INTC_IRQ(SCIF3, 205),
    INTC_IRQ(SCIF3, 206), INTC_IRQ(SCIF3, 207),
    INTC_IRQ(SSU0, 208), INTC_IRQ(SSU0, 209),
    INTC_IRQ(SSU0, 210),
    INTC_IRQ(SSU1, 211), INTC_IRQ(SSU1, 212),
    INTC_IRQ(SSU1, 213),
    INTC_IRQ(SSI0_SSII, 214), INTC_IRQ(SSI1_SSII, 215),
    INTC_IRQ(SSI2_SSII, 216), INTC_IRQ(SSI3_SSII, 217),
    INTC_IRQ(FLCTL, 224), INTC_IRQ(FLCTL, 225),
    INTC_IRQ(FLCTL, 226), INTC_IRQ(FLCTL, 227),
    INTC_IRQ(RTC, 231), INTC_IRQ(RTC, 232),
    INTC_IRQ(RTC, 233),
    INTC_IRQ(RCAN0, 234), INTC_IRQ(RCAN0, 235),
    INTC_IRQ(RCAN0, 236), INTC_IRQ(RCAN0, 237),
    INTC_IRQ(RCAN0, 238),
    INTC_IRQ(RCAN1, 239), INTC_IRQ(RCAN1, 240),
    INTC_IRQ(RCAN1, 241), INTC_IRQ(RCAN1, 242),
    INTC_IRQ(RCAN1, 243),

    /* SH7263-specific trash */
#ifdef CONFIG_CPU_SUBTYPE_SH7263
    INTC_IRQ(ROMDEC, 218), INTC_IRQ(ROMDEC, 219),
    INTC_IRQ(ROMDEC, 220), INTC_IRQ(ROMDEC, 221),
    INTC_IRQ(ROMDEC, 222), INTC_IRQ(ROMDEC, 223),

    INTC_IRQ(SDHI, 228), INTC_IRQ(SDHI, 229),
    INTC_IRQ(SDHI, 230),

    INTC_IRQ(SRC, 244), INTC_IRQ(SRC, 245),
    INTC_IRQ(SRC, 246),

    INTC_IRQ(IEBI, 247),
#endif
};

static struct intc_group groups[] __initdata = {
    INTC_GROUP(PINT, PINT0, PINT1, PINT2, PINT3,
           PINT4, PINT5, PINT6, PINT7),
};

static struct intc_prio_reg prio_registers[] __initdata = {
    { 0xfffe0818, 0, 16, 4, /* IPR01 */ { IRQ0, IRQ1, IRQ2, IRQ3 } },
    { 0xfffe081a, 0, 16, 4, /* IPR02 */ { IRQ4, IRQ5, IRQ6, IRQ7 } },
    { 0xfffe0820, 0, 16, 4, /* IPR05 */ { PINT, 0, 0, 0 } },
    { 0xfffe0c00, 0, 16, 4, /* IPR06 */ { DMAC0, DMAC1, DMAC2, DMAC3 } },
    { 0xfffe0c02, 0, 16, 4, /* IPR07 */ { DMAC4, DMAC5, DMAC6, DMAC7 } },
    { 0xfffe0c04, 0, 16, 4, /* IPR08 */ { USB, LCDC, CMT0, CMT1 } },
    { 0xfffe0c06, 0, 16, 4, /* IPR09 */ { BSC, WDT, MTU0_ABCD, MTU0_VEF } },
    { 0xfffe0c08, 0, 16, 4, /* IPR10 */ { MTU1_AB, MTU1_VU, MTU2_AB,
                          MTU2_VU } },
    { 0xfffe0c0a, 0, 16, 4, /* IPR11 */ { MTU3_ABCD, MTU2_TCI3V, MTU4_ABCD,
                          MTU2_TCI4V } },
    { 0xfffe0c0c, 0, 16, 4, /* IPR12 */ { ADC_ADI, IIC30, IIC31, IIC32 } },
    { 0xfffe0c0e, 0, 16, 4, /* IPR13 */ { IIC33, SCIF0, SCIF1, SCIF2 } },
    { 0xfffe0c10, 0, 16, 4, /* IPR14 */ { SCIF3, SSU0, SSU1, SSI0_SSII } },
#ifdef CONFIG_CPU_SUBTYPE_SH7203
    { 0xfffe0c12, 0, 16, 4, /* IPR15 */ { SSI1_SSII, SSI2_SSII,
                          SSI3_SSII, 0 } },
    { 0xfffe0c14, 0, 16, 4, /* IPR16 */ { FLCTL, 0, RTC, RCAN0 } },
    { 0xfffe0c16, 0, 16, 4, /* IPR17 */ { RCAN1, 0, 0, 0 } },
#else
    { 0xfffe0c12, 0, 16, 4, /* IPR15 */ { SSI1_SSII, SSI2_SSII,
                          SSI3_SSII, ROMDEC } },
    { 0xfffe0c14, 0, 16, 4, /* IPR16 */ { FLCTL, SDHI, RTC, RCAN0 } },
    { 0xfffe0c16, 0, 16, 4, /* IPR17 */ { RCAN1, SRC, IEBI, 0 } },
#endif
};

static struct intc_mask_reg mask_registers[] __initdata = {
    { 0xfffe0808, 0, 16, /* PINTER */
      { 0, 0, 0, 0, 0, 0, 0, 0,
        PINT7, PINT6, PINT5, PINT4, PINT3, PINT2, PINT1, PINT0 } },
};

static DECLARE_INTC_DESC(intc_desc, "sh7203", vectors, groups,
             mask_registers, prio_registers, NULL);

static struct plat_sci_port scif0_platform_data = {
    .mapbase    = 0xfffe8000,
    .flags      = UPF_BOOT_AUTOCONF,
    .scscr      = SCSCR_RIE | SCSCR_TIE | SCSCR_RE | SCSCR_TE |
              SCSCR_REIE,
    .scbrr_algo_id  = SCBRR_ALGO_2,
    .type       = PORT_SCIF,
    .irqs       = SCIx_IRQ_MUXED(192),
    .regtype    = SCIx_SH2_SCIF_FIFODATA_REGTYPE,
};

static struct platform_device scif0_device = {
    .name       = "sh-sci",
    .id     = 0,
    .dev        = {
        .platform_data  = &scif0_platform_data,
    },
};

static struct plat_sci_port scif1_platform_data = {
    .mapbase    = 0xfffe8800,
    .flags      = UPF_BOOT_AUTOCONF,
    .scscr      = SCSCR_RIE | SCSCR_TIE | SCSCR_RE | SCSCR_TE |
              SCSCR_REIE,
    .scbrr_algo_id  = SCBRR_ALGO_2,
    .type       = PORT_SCIF,
    .irqs       = SCIx_IRQ_MUXED(196),
    .regtype    = SCIx_SH2_SCIF_FIFODATA_REGTYPE,
};

static struct platform_device scif1_device = {
    .name       = "sh-sci",
    .id     = 1,
    .dev        = {
        .platform_data  = &scif1_platform_data,
    },
};

static struct plat_sci_port scif2_platform_data = {
    .mapbase    = 0xfffe9000,
    .flags      = UPF_BOOT_AUTOCONF,
    .scscr      = SCSCR_RIE | SCSCR_TIE | SCSCR_RE | SCSCR_TE |
              SCSCR_REIE,
    .scbrr_algo_id  = SCBRR_ALGO_2,
    .type       = PORT_SCIF,
    .irqs       = SCIx_IRQ_MUXED(200),
    .regtype    = SCIx_SH2_SCIF_FIFODATA_REGTYPE,
};

static struct platform_device scif2_device = {
    .name       = "sh-sci",
    .id     = 2,
    .dev        = {
        .platform_data  = &scif2_platform_data,
    },
};

static struct plat_sci_port scif3_platform_data = {
    .mapbase    = 0xfffe9800,
    .flags      = UPF_BOOT_AUTOCONF,
    .scscr      = SCSCR_RIE | SCSCR_TIE | SCSCR_RE | SCSCR_TE |
              SCSCR_REIE,
    .scbrr_algo_id  = SCBRR_ALGO_2,
    .type       = PORT_SCIF,
    .irqs       = SCIx_IRQ_MUXED(204),
    .regtype    = SCIx_SH2_SCIF_FIFODATA_REGTYPE,
};

static struct platform_device scif3_device = {
    .name       = "sh-sci",
    .id     = 3,
    .dev        = {
        .platform_data  = &scif3_platform_data,
    },
};

static struct sh_timer_config cmt0_platform_data = {
    .channel_offset = 0x02,
    .timer_bit = 0,
    .clockevent_rating = 125,
    .clocksource_rating = 0, /* disabled due to code generation issues */
};

static struct resource cmt0_resources[] = {
    [0] = {
        .start  = 0xfffec002,
        .end    = 0xfffec007,
        .flags  = IORESOURCE_MEM,
    },
    [1] = {
        .start  = 142,
        .flags  = IORESOURCE_IRQ,
    },
};

static struct platform_device cmt0_device = {
    .name       = "sh_cmt",
    .id     = 0,
    .dev = {
        .platform_data  = &cmt0_platform_data,
    },
    .resource   = cmt0_resources,
    .num_resources  = ARRAY_SIZE(cmt0_resources),
};

static struct sh_timer_config cmt1_platform_data = {
    .channel_offset = 0x08,
    .timer_bit = 1,
    .clockevent_rating = 125,
    .clocksource_rating = 0, /* disabled due to code generation issues */
};

static struct resource cmt1_resources[] = {
    [0] = {
        .start  = 0xfffec008,
        .end    = 0xfffec00d,
        .flags  = IORESOURCE_MEM,
    },
    [1] = {
        .start  = 143,
        .flags  = IORESOURCE_IRQ,
    },
};

static struct platform_device cmt1_device = {
    .name       = "sh_cmt",
    .id     = 1,
    .dev = {
        .platform_data  = &cmt1_platform_data,
    },
    .resource   = cmt1_resources,
    .num_resources  = ARRAY_SIZE(cmt1_resources),
};

static struct sh_timer_config mtu2_0_platform_data = {
    .channel_offset = -0x80,
    .timer_bit = 0,
    .clockevent_rating = 200,
};

static struct resource mtu2_0_resources[] = {
    [0] = {
        .start  = 0xfffe4300,
        .end    = 0xfffe4326,
        .flags  = IORESOURCE_MEM,
    },
    [1] = {
        .start  = 146,
        .flags  = IORESOURCE_IRQ,
    },
};

static struct platform_device mtu2_0_device = {
    .name       = "sh_mtu2",
    .id     = 0,
    .dev = {
        .platform_data  = &mtu2_0_platform_data,
    },
    .resource   = mtu2_0_resources,
    .num_resources  = ARRAY_SIZE(mtu2_0_resources),
};

static struct sh_timer_config mtu2_1_platform_data = {
    .channel_offset = -0x100,
    .timer_bit = 1,
    .clockevent_rating = 200,
};

static struct resource mtu2_1_resources[] = {
    [0] = {
        .start  = 0xfffe4380,
        .end    = 0xfffe4390,
        .flags  = IORESOURCE_MEM,
    },
    [1] = {
        .start  = 153,
        .flags  = IORESOURCE_IRQ,
    },
};

static struct platform_device mtu2_1_device = {
    .name       = "sh_mtu2",
    .id     = 1,
    .dev = {
        .platform_data  = &mtu2_1_platform_data,
    },
    .resource   = mtu2_1_resources,
    .num_resources  = ARRAY_SIZE(mtu2_1_resources),
};

static struct resource rtc_resources[] = {
    [0] = {
        .start  = 0xffff2000,
        .end    = 0xffff2000 + 0x58 - 1,
        .flags  = IORESOURCE_IO,
    },
    [1] = {
        /* Shared Period/Carry/Alarm IRQ */
        .start  = 231,
        .flags  = IORESOURCE_IRQ,
    },
};

static struct platform_device rtc_device = {
    .name       = "sh-rtc",
    .id     = -1,
    .num_resources  = ARRAY_SIZE(rtc_resources),
    .resource   = rtc_resources,
};

static struct platform_device *sh7203_devices[] __initdata = {
    &scif0_device,
    &scif1_device,
    &scif2_device,
    &scif3_device,
    &cmt0_device,
    &cmt1_device,
    &mtu2_0_device,
    &mtu2_1_device,
    &rtc_device,
};

static int __init sh7203_devices_setup(void)
{
    return platform_add_devices(sh7203_devices,
                    ARRAY_SIZE(sh7203_devices));
}
arch_initcall(sh7203_devices_setup);

void __init plat_irq_setup(void)
{
    register_intc_controller(&intc_desc);
}

static struct platform_device *sh7203_early_devices[] __initdata = {
    &scif0_device,
    &scif1_device,
    &scif2_device,
    &scif3_device,
    &cmt0_device,
    &cmt1_device,
    &mtu2_0_device,
    &mtu2_1_device,
};

#define STBCR3 0xfffe0408
#define STBCR4 0xfffe040c

void __init plat_early_device_setup(void)
{
    /* enable CMT clock */
    __raw_writeb(__raw_readb(STBCR4) & ~0x04, STBCR4);

    /* enable MTU2 clock */
    __raw_writeb(__raw_readb(STBCR3) & ~0x20, STBCR3);

    early_platform_add_devices(sh7203_early_devices,
                   ARRAY_SIZE(sh7203_early_devices));
}