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setup-sh7780.c

/*
 * 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 <asm/sci.h>

static struct resource rtc_resources[] = {
      [0] = {
            .start      = 0xffe80000,
            .end  = 0xffe80000 + 0x58 - 1,
            .flags      = IORESOURCE_IO,
      },
      [1] = {
            /* Period IRQ */
            .start      = 21,
            .flags      = IORESOURCE_IRQ,
      },
      [2] = {
            /* Carry IRQ */
            .start      = 22,
            .flags      = IORESOURCE_IRQ,
      },
      [3] = {
            /* Alarm IRQ */
            .start      = 20,
            .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 plat_sci_port sci_platform_data[] = {
      {
            .mapbase    = 0xffe00000,
            .flags            = UPF_BOOT_AUTOCONF,
            .type       = PORT_SCIF,
            .irqs       = { 40, 41, 43, 42 },
      }, {
            .mapbase    = 0xffe10000,
            .flags            = UPF_BOOT_AUTOCONF,
            .type       = PORT_SCIF,
            .irqs       = { 76, 77, 79, 78 },
      }, {
            .flags = 0,
      }
};

static struct platform_device sci_device = {
      .name       = "sh-sci",
      .id         = -1,
      .dev        = {
            .platform_data    = sci_platform_data,
      },
};

static struct platform_device *sh7780_devices[] __initdata = {
      &rtc_device,
      &sci_device,
};

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

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_ATI, RTC_PRI, RTC_CUI,
      WDT,
      TMU0, TMU1, TMU2, TMU2_TICPI,
      HUDI,
      DMAC0_DMINT0, DMAC0_DMINT1, DMAC0_DMINT2, DMAC0_DMINT3, DMAC0_DMAE,
      SCIF0_ERI, SCIF0_RXI, SCIF0_BRI, SCIF0_TXI,
      DMAC0_DMINT4, DMAC0_DMINT5, DMAC1_DMINT6, DMAC1_DMINT7,
      CMT, HAC,
      PCISERR, PCIINTA, PCIINTB, PCIINTC, PCIINTD,
      PCIERR, PCIPWD3, PCIPWD2, PCIPWD1, PCIPWD0,
      SCIF1_ERI, SCIF1_RXI, SCIF1_BRI, SCIF1_TXI,
      SIOF, HSPI,
      MMCIF_FSTAT, MMCIF_TRAN, MMCIF_ERR, MMCIF_FRDY,
      DMAC1_DMINT8, DMAC1_DMINT9, DMAC1_DMINT10, DMAC1_DMINT11,
      TMU3, TMU4, TMU5,
      SSI,
      FLCTL_FLSTE, FLCTL_FLEND, FLCTL_FLTRQ0, FLCTL_FLTRQ1,
      GPIOI0, GPIOI1, GPIOI2, GPIOI3,

      /* interrupt groups */

      RTC, TMU012, DMAC0, SCIF0, DMAC45, DMAC1,
      PCIC5, SCIF1, MMCIF, TMU345, FLCTL, GPIO,
};

static struct intc_vect vectors[] __initdata = {
      INTC_VECT(RTC_ATI, 0x480), INTC_VECT(RTC_PRI, 0x4a0),
      INTC_VECT(RTC_CUI, 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_DMINT0, 0x640), INTC_VECT(DMAC0_DMINT1, 0x660),
      INTC_VECT(DMAC0_DMINT2, 0x680), INTC_VECT(DMAC0_DMINT3, 0x6a0),
      INTC_VECT(DMAC0_DMAE, 0x6c0),
      INTC_VECT(SCIF0_ERI, 0x700), INTC_VECT(SCIF0_RXI, 0x720),
      INTC_VECT(SCIF0_BRI, 0x740), INTC_VECT(SCIF0_TXI, 0x760),
      INTC_VECT(DMAC0_DMINT4, 0x780), INTC_VECT(DMAC0_DMINT5, 0x7a0),
      INTC_VECT(DMAC1_DMINT6, 0x7c0), INTC_VECT(DMAC1_DMINT7, 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(PCIERR, 0xaa0),
      INTC_VECT(PCIPWD3, 0xac0), INTC_VECT(PCIPWD2, 0xae0),
      INTC_VECT(PCIPWD1, 0xb00), INTC_VECT(PCIPWD0, 0xb20),
      INTC_VECT(SCIF1_ERI, 0xb80), INTC_VECT(SCIF1_RXI, 0xba0),
      INTC_VECT(SCIF1_BRI, 0xbc0), INTC_VECT(SCIF1_TXI, 0xbe0),
      INTC_VECT(SIOF, 0xc00), INTC_VECT(HSPI, 0xc80),
      INTC_VECT(MMCIF_FSTAT, 0xd00), INTC_VECT(MMCIF_TRAN, 0xd20),
      INTC_VECT(MMCIF_ERR, 0xd40), INTC_VECT(MMCIF_FRDY, 0xd60),
      INTC_VECT(DMAC1_DMINT8, 0xd80), INTC_VECT(DMAC1_DMINT9, 0xda0),
      INTC_VECT(DMAC1_DMINT10, 0xdc0), INTC_VECT(DMAC1_DMINT11, 0xde0),
      INTC_VECT(TMU3, 0xe00), INTC_VECT(TMU4, 0xe20),
      INTC_VECT(TMU5, 0xe40),
      INTC_VECT(SSI, 0xe80),
      INTC_VECT(FLCTL_FLSTE, 0xf00), INTC_VECT(FLCTL_FLEND, 0xf20),
      INTC_VECT(FLCTL_FLTRQ0, 0xf40), INTC_VECT(FLCTL_FLTRQ1, 0xf60),
      INTC_VECT(GPIOI0, 0xf80), INTC_VECT(GPIOI1, 0xfa0),
      INTC_VECT(GPIOI2, 0xfc0), INTC_VECT(GPIOI3, 0xfe0),
};

static struct intc_group groups[] __initdata = {
      INTC_GROUP(RTC, RTC_ATI, RTC_PRI, RTC_CUI),
      INTC_GROUP(TMU012, TMU0, TMU1, TMU2, TMU2_TICPI),
      INTC_GROUP(DMAC0, DMAC0_DMINT0, DMAC0_DMINT1, DMAC0_DMINT2,
               DMAC0_DMINT3, DMAC0_DMINT4, DMAC0_DMINT5, DMAC0_DMAE),
      INTC_GROUP(SCIF0, SCIF0_ERI, SCIF0_RXI, SCIF0_BRI, SCIF0_TXI),
      INTC_GROUP(DMAC1, DMAC1_DMINT6, DMAC1_DMINT7, DMAC1_DMINT8,
               DMAC1_DMINT9, DMAC1_DMINT10, DMAC1_DMINT11),
      INTC_GROUP(PCIC5, PCIERR, PCIPWD3, PCIPWD2, PCIPWD1, PCIPWD0),
      INTC_GROUP(SCIF1, SCIF1_ERI, SCIF1_RXI, SCIF1_BRI, SCIF1_TXI),
      INTC_GROUP(MMCIF, MMCIF_FSTAT, MMCIF_TRAN, MMCIF_ERR, MMCIF_FRDY),
      INTC_GROUP(TMU345, TMU3, TMU4, TMU5),
      INTC_GROUP(FLCTL, FLCTL_FLSTE, FLCTL_FLEND,
               FLCTL_FLTRQ0, FLCTL_FLTRQ1),
      INTC_GROUP(GPIO, GPIOI0, GPIOI1, GPIOI2, GPIOI3),
};

static struct intc_prio priorities[] __initdata = {
      INTC_PRIO(SCIF0, 3),
      INTC_PRIO(SCIF1, 3),
};

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, priorities,
                   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 DECLARE_INTC_DESC(intc_irq_desc, "sh7780-irq", irq_vectors,
                   NULL, NULL, irq_mask_registers, irq_prio_registers,
                   irq_sense_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, NULL, irl7654_mask_registers, NULL, NULL);

static DECLARE_INTC_DESC(intc_irl3210_desc, "sh7780-irl3210", irl_vectors,
                   NULL, 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 */
      ctrl_outl(0xff000000, INTC_INTMSK0);

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

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

      /* disable holding function, ie enable "SH-4 Mode" */
      ctrl_outl(ctrl_inl(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 */
            ctrl_outl(ctrl_inl(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 */
            ctrl_outl(0x40000000, INTC_INTMSKCLR1);
            ctrl_outl(0x0000fffe, INTC_INTMSKCLR2);
            break;
      case IRQ_MODE_IRL3210:
            /* enable IRL0-3 but don't provide any masking */
            ctrl_outl(0x80000000, INTC_INTMSKCLR1);
            ctrl_outl(0xfffe0000, INTC_INTMSKCLR2);
            break;
      case IRQ_MODE_IRL7654_MASK:
            /* enable IRL7-4 and mask using cpu intc controller */
            ctrl_outl(0x40000000, INTC_INTMSKCLR1);
            register_intc_controller(&intc_irl7654_desc);
            break;
      case IRQ_MODE_IRL3210_MASK:
            /* enable IRL0-3 and mask using cpu intc controller */
            ctrl_outl(0x80000000, INTC_INTMSKCLR1);
            register_intc_controller(&intc_irl3210_desc);
            break;
      default:
            BUG();
      }
}

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