setup-sh7780.c

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/*
 * SH7780 Setup
 *
 *  Copyright (C) 2006  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/io.h>
#include <linux/serial_sci.h>
#include <linux/sh_dma.h>
#include <linux/sh_timer.h>
#include <linux/sh_intc.h>
#include <cpu/dma-register.h>

static struct plat_sci_port scif0_platform_data = {
    .mapbase    = 0xffe00000,
    .flags      = UPF_BOOT_AUTOCONF,
    .scscr      = SCSCR_RE | SCSCR_TE | SCSCR_REIE | SCSCR_CKE1,
    .scbrr_algo_id  = SCBRR_ALGO_1,
    .type       = PORT_SCIF,
    .irqs       = SCIx_IRQ_MUXED(evt2irq(0x700)),
    .regtype    = SCIx_SH4_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    = 0xffe10000,
    .flags      = UPF_BOOT_AUTOCONF,
    .scscr      = SCSCR_RE | SCSCR_TE | SCSCR_REIE | SCSCR_CKE1,
    .scbrr_algo_id  = SCBRR_ALGO_1,
    .type       = PORT_SCIF,
    .irqs       = SCIx_IRQ_MUXED(evt2irq(0xb80)),
    .regtype    = SCIx_SH4_SCIF_FIFODATA_REGTYPE,
};

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

static struct sh_timer_config tmu0_platform_data = {
    .channel_offset = 0x04,
    .timer_bit = 0,
    .clockevent_rating = 200,
};

static struct resource tmu0_resources[] = {
    [0] = {
        .start  = 0xffd80008,
        .end    = 0xffd80013,
        .flags  = IORESOURCE_MEM,
    },
    [1] = {
        .start  = evt2irq(0x580),
        .flags  = IORESOURCE_IRQ,
    },
};

static struct platform_device tmu0_device = {
    .name       = "sh_tmu",
    .id     = 0,
    .dev = {
        .platform_data  = &tmu0_platform_data,
    },
    .resource   = tmu0_resources,
    .num_resources  = ARRAY_SIZE(tmu0_resources),
};

static struct sh_timer_config tmu1_platform_data = {
    .channel_offset = 0x10,
    .timer_bit = 1,
    .clocksource_rating = 200,
};

static struct resource tmu1_resources[] = {
    [0] = {
        .start  = 0xffd80014,
        .end    = 0xffd8001f,
        .flags  = IORESOURCE_MEM,
    },
    [1] = {
        .start  = evt2irq(0x5a0),
        .flags  = IORESOURCE_IRQ,
    },
};

static struct platform_device tmu1_device = {
    .name       = "sh_tmu",
    .id     = 1,
    .dev = {
        .platform_data  = &tmu1_platform_data,
    },
    .resource   = tmu1_resources,
    .num_resources  = ARRAY_SIZE(tmu1_resources),
};

static struct sh_timer_config tmu2_platform_data = {
    .channel_offset = 0x1c,
    .timer_bit = 2,
};

static struct resource tmu2_resources[] = {
    [0] = {
        .start  = 0xffd80020,
        .end    = 0xffd8002f,
        .flags  = IORESOURCE_MEM,
    },
    [1] = {
        .start  = evt2irq(0x5c0),
        .flags  = IORESOURCE_IRQ,
    },
};

static struct platform_device tmu2_device = {
    .name       = "sh_tmu",
    .id     = 2,
    .dev = {
        .platform_data  = &tmu2_platform_data,
    },
    .resource   = tmu2_resources,
    .num_resources  = ARRAY_SIZE(tmu2_resources),
};

static struct sh_timer_config tmu3_platform_data = {
    .channel_offset = 0x04,
    .timer_bit = 0,
};

static struct resource tmu3_resources[] = {
    [0] = {
        .start  = 0xffdc0008,
        .end    = 0xffdc0013,
        .flags  = IORESOURCE_MEM,
    },
    [1] = {
        .start  = evt2irq(0xe00),
        .flags  = IORESOURCE_IRQ,
    },
};

static struct platform_device tmu3_device = {
    .name       = "sh_tmu",
    .id     = 3,
    .dev = {
        .platform_data  = &tmu3_platform_data,
    },
    .resource   = tmu3_resources,
    .num_resources  = ARRAY_SIZE(tmu3_resources),
};

static struct sh_timer_config tmu4_platform_data = {
    .channel_offset = 0x10,
    .timer_bit = 1,
};

static struct resource tmu4_resources[] = {
    [0] = {
        .start  = 0xffdc0014,
        .end    = 0xffdc001f,
        .flags  = IORESOURCE_MEM,
    },
    [1] = {
        .start  = evt2irq(0xe20),
        .flags  = IORESOURCE_IRQ,
    },
};

static struct platform_device tmu4_device = {
    .name       = "sh_tmu",
    .id     = 4,
    .dev = {
        .platform_data  = &tmu4_platform_data,
    },
    .resource   = tmu4_resources,
    .num_resources  = ARRAY_SIZE(tmu4_resources),
};

static struct sh_timer_config tmu5_platform_data = {
    .channel_offset = 0x1c,
    .timer_bit = 2,
};

static struct resource tmu5_resources[] = {
    [0] = {
        .start  = 0xffdc0020,
        .end    = 0xffdc002b,
        .flags  = IORESOURCE_MEM,
    },
    [1] = {
        .start  = evt2irq(0xe40),
        .flags  = IORESOURCE_IRQ,
    },
};

static struct platform_device tmu5_device = {
    .name       = "sh_tmu",
    .id     = 5,
    .dev = {
        .platform_data  = &tmu5_platform_data,
    },
    .resource   = tmu5_resources,
    .num_resources  = ARRAY_SIZE(tmu5_resources),
};

static struct resource rtc_resources[] = {
    [0] = {
        .start  = 0xffe80000,
        .end    = 0xffe80000 + 0x58 - 1,
        .flags  = IORESOURCE_IO,
    },
    [1] = {
        /* Shared Period/Carry/Alarm IRQ */
        .start  = evt2irq(0x480),
        .flags  = IORESOURCE_IRQ,
    },
};

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

/* DMA */
static const struct sh_dmae_channel sh7780_dmae0_channels[] = {
    {
        .offset = 0,
        .dmars = 0,
        .dmars_bit = 0,
    }, {
        .offset = 0x10,
        .dmars = 0,
        .dmars_bit = 8,
    }, {
        .offset = 0x20,
        .dmars = 4,
        .dmars_bit = 0,
    }, {
        .offset = 0x30,
        .dmars = 4,
        .dmars_bit = 8,
    }, {
        .offset = 0x50,
        .dmars = 8,
        .dmars_bit = 0,
    }, {
        .offset = 0x60,
        .dmars = 8,
        .dmars_bit = 8,
    }
};

static const struct sh_dmae_channel sh7780_dmae1_channels[] = {
    {
        .offset = 0,
    }, {
        .offset = 0x10,
    }, {
        .offset = 0x20,
    }, {
        .offset = 0x30,
    }, {
        .offset = 0x50,
    }, {
        .offset = 0x60,
    }
};

static const unsigned int ts_shift[] = TS_SHIFT;

static struct sh_dmae_pdata dma0_platform_data = {
    .channel    = sh7780_dmae0_channels,
    .channel_num    = ARRAY_SIZE(sh7780_dmae0_channels),
    .ts_low_shift   = CHCR_TS_LOW_SHIFT,
    .ts_low_mask    = CHCR_TS_LOW_MASK,
    .ts_high_shift  = CHCR_TS_HIGH_SHIFT,
    .ts_high_mask   = CHCR_TS_HIGH_MASK,
    .ts_shift   = ts_shift,
    .ts_shift_num   = ARRAY_SIZE(ts_shift),
    .dmaor_init = DMAOR_INIT,
};

static struct sh_dmae_pdata dma1_platform_data = {
    .channel    = sh7780_dmae1_channels,
    .channel_num    = ARRAY_SIZE(sh7780_dmae1_channels),
    .ts_low_shift   = CHCR_TS_LOW_SHIFT,
    .ts_low_mask    = CHCR_TS_LOW_MASK,
    .ts_high_shift  = CHCR_TS_HIGH_SHIFT,
    .ts_high_mask   = CHCR_TS_HIGH_MASK,
    .ts_shift   = ts_shift,
    .ts_shift_num   = ARRAY_SIZE(ts_shift),
    .dmaor_init = DMAOR_INIT,
};

static struct resource sh7780_dmae0_resources[] = {
    [0] = {
        /* Channel registers and DMAOR */
        .start  = 0xfc808020,
        .end    = 0xfc80808f,
        .flags  = IORESOURCE_MEM,
    },
    [1] = {
        /* DMARSx */
        .start  = 0xfc809000,
        .end    = 0xfc80900b,
        .flags  = IORESOURCE_MEM,
    },
    {
        /*
         * Real DMA error vector is 0x6c0, and channel
         * vectors are 0x640-0x6a0, 0x780-0x7a0
         */
        .name   = "error_irq",
        .start  = evt2irq(0x640),
        .end    = evt2irq(0x640),
        .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_SHAREABLE,
    },
};

static struct resource sh7780_dmae1_resources[] = {
    [0] = {
        /* Channel registers and DMAOR */
        .start  = 0xfc818020,
        .end    = 0xfc81808f,
        .flags  = IORESOURCE_MEM,
    },
    /* DMAC1 has no DMARS */
    {
        /*
         * Real DMA error vector is 0x6c0, and channel
         * vectors are 0x7c0-0x7e0, 0xd80-0xde0
         */
        .name   = "error_irq",
        .start  = evt2irq(0x7c0),
        .end    = evt2irq(0x7c0),
        .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_SHAREABLE,
    },
};

static struct platform_device dma0_device = {
    .name           = "sh-dma-engine",
    .id             = 0,
    .resource   = sh7780_dmae0_resources,
    .num_resources  = ARRAY_SIZE(sh7780_dmae0_resources),
    .dev            = {
        .platform_data  = &dma0_platform_data,
    },
};

static struct platform_device dma1_device = {
    .name       = "sh-dma-engine",
    .id     = 1,
    .resource   = sh7780_dmae1_resources,
    .num_resources  = ARRAY_SIZE(sh7780_dmae1_resources),
    .dev        = {
        .platform_data  = &dma1_platform_data,
    },
};

static struct platform_device *sh7780_devices[] __initdata = {
    &scif0_device,
    &scif1_device,
    &tmu0_device,
    &tmu1_device,
    &tmu2_device,
    &tmu3_device,
    &tmu4_device,
    &tmu5_device,
    &rtc_device,
    &dma0_device,
    &dma1_device,
};

static int __init sh7780_devices_setup(void)
{
    return platform_add_devices(sh7780_devices,
                    ARRAY_SIZE(sh7780_devices));
}
arch_initcall(sh7780_devices_setup);

static struct platform_device *sh7780_early_devices[] __initdata = {
    &scif0_device,
    &scif1_device,
    &tmu0_device,
    &tmu1_device,
    &tmu2_device,
    &tmu3_device,
    &tmu4_device,
    &tmu5_device,
};

void __init plat_early_device_setup(void)
{
    if (mach_is_sh2007()) {
        scif0_platform_data.scscr &= ~SCSCR_CKE1;
        scif0_platform_data.scbrr_algo_id = SCBRR_ALGO_2;
        scif1_platform_data.scscr &= ~SCSCR_CKE1;
        scif1_platform_data.scbrr_algo_id = SCBRR_ALGO_2;
    }

    early_platform_add_devices(sh7780_early_devices,
                   ARRAY_SIZE(sh7780_early_devices));
}

enum {
    UNUSED = 0,

    /* interrupt sources */

    IRL_LLLL, IRL_LLLH, IRL_LLHL, IRL_LLHH,
    IRL_LHLL, IRL_LHLH, IRL_LHHL, IRL_LHHH,
    IRL_HLLL, IRL_HLLH, IRL_HLHL, IRL_HLHH,
    IRL_HHLL, IRL_HHLH, IRL_HHHL,

    IRQ0, IRQ1, IRQ2, IRQ3, IRQ4, IRQ5, IRQ6, IRQ7,
    RTC, WDT, TMU0, TMU1, TMU2, TMU2_TICPI,
    HUDI, DMAC0, SCIF0, DMAC1, CMT, HAC,
    PCISERR, PCIINTA, PCIINTB, PCIINTC, PCIINTD, PCIC5,
    SCIF1, SIOF, HSPI, MMCIF, TMU3, TMU4, TMU5, SSI, FLCTL, GPIO,

    /* interrupt groups */

    TMU012, TMU345,
};

static struct intc_vect vectors[] __initdata = {
    INTC_VECT(RTC, 0x480), INTC_VECT(RTC, 0x4a0),
    INTC_VECT(RTC, 0x4c0),
    INTC_VECT(WDT, 0x560),
    INTC_VECT(TMU0, 0x580), INTC_VECT(TMU1, 0x5a0),
    INTC_VECT(TMU2, 0x5c0), INTC_VECT(TMU2_TICPI, 0x5e0),
    INTC_VECT(HUDI, 0x600),
    INTC_VECT(DMAC0, 0x640), INTC_VECT(DMAC0, 0x660),
    INTC_VECT(DMAC0, 0x680), INTC_VECT(DMAC0, 0x6a0),
    INTC_VECT(DMAC0, 0x6c0),
    INTC_VECT(SCIF0, 0x700), INTC_VECT(SCIF0, 0x720),
    INTC_VECT(SCIF0, 0x740), INTC_VECT(SCIF0, 0x760),
    INTC_VECT(DMAC0, 0x780), INTC_VECT(DMAC0, 0x7a0),
    INTC_VECT(DMAC1, 0x7c0), INTC_VECT(DMAC1, 0x7e0),
    INTC_VECT(CMT, 0x900), INTC_VECT(HAC, 0x980),
    INTC_VECT(PCISERR, 0xa00), INTC_VECT(PCIINTA, 0xa20),
    INTC_VECT(PCIINTB, 0xa40), INTC_VECT(PCIINTC, 0xa60),
    INTC_VECT(PCIINTD, 0xa80), INTC_VECT(PCIC5, 0xaa0),
    INTC_VECT(PCIC5, 0xac0), INTC_VECT(PCIC5, 0xae0),
    INTC_VECT(PCIC5, 0xb00), INTC_VECT(PCIC5, 0xb20),
    INTC_VECT(SCIF1, 0xb80), INTC_VECT(SCIF1, 0xba0),
    INTC_VECT(SCIF1, 0xbc0), INTC_VECT(SCIF1, 0xbe0),
    INTC_VECT(SIOF, 0xc00), INTC_VECT(HSPI, 0xc80),
    INTC_VECT(MMCIF, 0xd00), INTC_VECT(MMCIF, 0xd20),
    INTC_VECT(MMCIF, 0xd40), INTC_VECT(MMCIF, 0xd60),
    INTC_VECT(DMAC1, 0xd80), INTC_VECT(DMAC1, 0xda0),
    INTC_VECT(DMAC1, 0xdc0), INTC_VECT(DMAC1, 0xde0),
    INTC_VECT(TMU3, 0xe00), INTC_VECT(TMU4, 0xe20),
    INTC_VECT(TMU5, 0xe40),
    INTC_VECT(SSI, 0xe80),
    INTC_VECT(FLCTL, 0xf00), INTC_VECT(FLCTL, 0xf20),
    INTC_VECT(FLCTL, 0xf40), INTC_VECT(FLCTL, 0xf60),
    INTC_VECT(GPIO, 0xf80), INTC_VECT(GPIO, 0xfa0),
    INTC_VECT(GPIO, 0xfc0), INTC_VECT(GPIO, 0xfe0),
};

static struct intc_group groups[] __initdata = {
    INTC_GROUP(TMU012, TMU0, TMU1, TMU2, TMU2_TICPI),
    INTC_GROUP(TMU345, TMU3, TMU4, TMU5),
};

static struct intc_mask_reg mask_registers[] __initdata = {
    { 0xffd40038, 0xffd4003c, 32, /* INT2MSKR / INT2MSKCR */
      { 0, 0, 0, 0, 0, 0, GPIO, FLCTL,
        SSI, MMCIF, HSPI, SIOF, PCIC5, PCIINTD, PCIINTC, PCIINTB,
        PCIINTA, PCISERR, HAC, CMT, 0, 0, DMAC1, DMAC0,
        HUDI, 0, WDT, SCIF1, SCIF0, RTC, TMU345, TMU012 } },
};

static struct intc_prio_reg prio_registers[] __initdata = {
    { 0xffd40000, 0, 32, 8, /* INT2PRI0 */ { TMU0, TMU1,
                         TMU2, TMU2_TICPI } },
    { 0xffd40004, 0, 32, 8, /* INT2PRI1 */ { TMU3, TMU4, TMU5, RTC } },
    { 0xffd40008, 0, 32, 8, /* INT2PRI2 */ { SCIF0, SCIF1, WDT } },
    { 0xffd4000c, 0, 32, 8, /* INT2PRI3 */ { HUDI, DMAC0, DMAC1 } },
    { 0xffd40010, 0, 32, 8, /* INT2PRI4 */ { CMT, HAC,
                         PCISERR, PCIINTA, } },
    { 0xffd40014, 0, 32, 8, /* INT2PRI5 */ { PCIINTB, PCIINTC,
                         PCIINTD, PCIC5 } },
    { 0xffd40018, 0, 32, 8, /* INT2PRI6 */ { SIOF, HSPI, MMCIF, SSI } },
    { 0xffd4001c, 0, 32, 8, /* INT2PRI7 */ { FLCTL, GPIO } },
};

static DECLARE_INTC_DESC(intc_desc, "sh7780", vectors, groups,
             mask_registers, prio_registers, NULL);

/* Support for external interrupt pins in IRQ mode */

static struct intc_vect irq_vectors[] __initdata = {
    INTC_VECT(IRQ0, 0x240), INTC_VECT(IRQ1, 0x280),
    INTC_VECT(IRQ2, 0x2c0), INTC_VECT(IRQ3, 0x300),
    INTC_VECT(IRQ4, 0x340), INTC_VECT(IRQ5, 0x380),
    INTC_VECT(IRQ6, 0x3c0), INTC_VECT(IRQ7, 0x200),
};

static struct intc_mask_reg irq_mask_registers[] __initdata = {
    { 0xffd00044, 0xffd00064, 32, /* INTMSK0 / INTMSKCLR0 */
      { IRQ0, IRQ1, IRQ2, IRQ3, IRQ4, IRQ5, IRQ6, IRQ7 } },
};

static struct intc_prio_reg irq_prio_registers[] __initdata = {
    { 0xffd00010, 0, 32, 4, /* INTPRI */ { IRQ0, IRQ1, IRQ2, IRQ3,
                           IRQ4, IRQ5, IRQ6, IRQ7 } },
};

static struct intc_sense_reg irq_sense_registers[] __initdata = {
    { 0xffd0001c, 32, 2, /* ICR1 */   { IRQ0, IRQ1, IRQ2, IRQ3,
                        IRQ4, IRQ5, IRQ6, IRQ7 } },
};

static struct intc_mask_reg irq_ack_registers[] __initdata = {
    { 0xffd00024, 0, 32, /* INTREQ */
      { IRQ0, IRQ1, IRQ2, IRQ3, IRQ4, IRQ5, IRQ6, IRQ7 } },
};

static DECLARE_INTC_DESC_ACK(intc_irq_desc, "sh7780-irq", irq_vectors,
                 NULL, irq_mask_registers, irq_prio_registers,
                 irq_sense_registers, irq_ack_registers);

/* External interrupt pins in IRL mode */

static struct intc_vect irl_vectors[] __initdata = {
    INTC_VECT(IRL_LLLL, 0x200), INTC_VECT(IRL_LLLH, 0x220),
    INTC_VECT(IRL_LLHL, 0x240), INTC_VECT(IRL_LLHH, 0x260),
    INTC_VECT(IRL_LHLL, 0x280), INTC_VECT(IRL_LHLH, 0x2a0),
    INTC_VECT(IRL_LHHL, 0x2c0), INTC_VECT(IRL_LHHH, 0x2e0),
    INTC_VECT(IRL_HLLL, 0x300), INTC_VECT(IRL_HLLH, 0x320),
    INTC_VECT(IRL_HLHL, 0x340), INTC_VECT(IRL_HLHH, 0x360),
    INTC_VECT(IRL_HHLL, 0x380), INTC_VECT(IRL_HHLH, 0x3a0),
    INTC_VECT(IRL_HHHL, 0x3c0),
};

static struct intc_mask_reg irl3210_mask_registers[] __initdata = {
    { 0xffd40080, 0xffd40084, 32, /* INTMSK2 / INTMSKCLR2 */
      { IRL_LLLL, IRL_LLLH, IRL_LLHL, IRL_LLHH,
        IRL_LHLL, IRL_LHLH, IRL_LHHL, IRL_LHHH,
        IRL_HLLL, IRL_HLLH, IRL_HLHL, IRL_HLHH,
        IRL_HHLL, IRL_HHLH, IRL_HHHL, } },
};

static struct intc_mask_reg irl7654_mask_registers[] __initdata = {
    { 0xffd40080, 0xffd40084, 32, /* INTMSK2 / INTMSKCLR2 */
      { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
        IRL_LLLL, IRL_LLLH, IRL_LLHL, IRL_LLHH,
        IRL_LHLL, IRL_LHLH, IRL_LHHL, IRL_LHHH,
        IRL_HLLL, IRL_HLLH, IRL_HLHL, IRL_HLHH,
        IRL_HHLL, IRL_HHLH, IRL_HHHL, } },
};

static DECLARE_INTC_DESC(intc_irl7654_desc, "sh7780-irl7654", irl_vectors,
             NULL, irl7654_mask_registers, NULL, NULL);

static DECLARE_INTC_DESC(intc_irl3210_desc, "sh7780-irl3210", irl_vectors,
             NULL, irl3210_mask_registers, NULL, NULL);

#define INTC_ICR0   0xffd00000
#define INTC_INTMSK0    0xffd00044
#define INTC_INTMSK1    0xffd00048
#define INTC_INTMSK2    0xffd40080
#define INTC_INTMSKCLR1 0xffd00068
#define INTC_INTMSKCLR2 0xffd40084

void __init plat_irq_setup(void)
{
    /* disable IRQ7-0 */
    __raw_writel(0xff000000, INTC_INTMSK0);

    /* disable IRL3-0 + IRL7-4 */
    __raw_writel(0xc0000000, INTC_INTMSK1);
    __raw_writel(0xfffefffe, INTC_INTMSK2);

    /* select IRL mode for IRL3-0 + IRL7-4 */
    __raw_writel(__raw_readl(INTC_ICR0) & ~0x00c00000, INTC_ICR0);

    /* disable holding function, ie enable "SH-4 Mode" */
    __raw_writel(__raw_readl(INTC_ICR0) | 0x00200000, INTC_ICR0);

    register_intc_controller(&intc_desc);
}

void __init plat_irq_setup_pins(int mode)
{
    switch (mode) {
    case IRQ_MODE_IRQ:
        /* select IRQ mode for IRL3-0 + IRL7-4 */
        __raw_writel(__raw_readl(INTC_ICR0) | 0x00c00000, INTC_ICR0);
        register_intc_controller(&intc_irq_desc);
        break;
    case IRQ_MODE_IRL7654:
        /* enable IRL7-4 but don't provide any masking */
        __raw_writel(0x40000000, INTC_INTMSKCLR1);
        __raw_writel(0x0000fffe, INTC_INTMSKCLR2);
        break;
    case IRQ_MODE_IRL3210:
        /* enable IRL0-3 but don't provide any masking */
        __raw_writel(0x80000000, INTC_INTMSKCLR1);
        __raw_writel(0xfffe0000, INTC_INTMSKCLR2);
        break;
    case IRQ_MODE_IRL7654_MASK:
        /* enable IRL7-4 and mask using cpu intc controller */
        __raw_writel(0x40000000, INTC_INTMSKCLR1);
        register_intc_controller(&intc_irl7654_desc);
        break;
    case IRQ_MODE_IRL3210_MASK:
        /* enable IRL0-3 and mask using cpu intc controller */
        __raw_writel(0x80000000, INTC_INTMSKCLR1);
        register_intc_controller(&intc_irl3210_desc);
        break;
    default:
        BUG();
    }
}