// SPDX-License-Identifier: GPL-2.0
/*
 * SH3 Setup code for SH7710, SH7712
 *
 *  Copyright (C) 2006 - 2009  Paul Mundt
 *  Copyright (C) 2007  Nobuhiro Iwamatsu
 */
#include <linux/platform_device.h>
#include <linux/init.h>
#include <linux/irq.h>
#include <linux/serial.h>
#include <linux/serial_sci.h>
#include <linux/sh_timer.h>
#include <linux/sh_intc.h>
#include <asm/rtc.h>

enum {
        UNUSED = 0,

        /* interrupt sources */
        IRQ0, IRQ1, IRQ2, IRQ3, IRQ4, IRQ5,
        DMAC1, SCIF0, SCIF1, DMAC2, IPSEC,
        EDMAC0, EDMAC1, EDMAC2,
        SIOF0, SIOF1,

        TMU0, TMU1, TMU2,
        RTC, WDT, REF,
};

static struct intc_vect vectors[] __initdata = {
        /* IRQ0->5 are handled in setup-sh3.c */
        INTC_VECT(DMAC1, 0x800), INTC_VECT(DMAC1, 0x820),
        INTC_VECT(DMAC1, 0x840), INTC_VECT(DMAC1, 0x860),
        INTC_VECT(SCIF0, 0x880), INTC_VECT(SCIF0, 0x8a0),
        INTC_VECT(SCIF0, 0x8c0), INTC_VECT(SCIF0, 0x8e0),
        INTC_VECT(SCIF1, 0x900), INTC_VECT(SCIF1, 0x920),
        INTC_VECT(SCIF1, 0x940), INTC_VECT(SCIF1, 0x960),
        INTC_VECT(DMAC2, 0xb80), INTC_VECT(DMAC2, 0xba0),
#ifdef CONFIG_CPU_SUBTYPE_SH7710
        INTC_VECT(IPSEC, 0xbe0),
#endif
        INTC_VECT(EDMAC0, 0xc00), INTC_VECT(EDMAC1, 0xc20),
        INTC_VECT(EDMAC2, 0xc40),
        INTC_VECT(SIOF0, 0xe00), INTC_VECT(SIOF0, 0xe20),
        INTC_VECT(SIOF0, 0xe40), INTC_VECT(SIOF0, 0xe60),
        INTC_VECT(SIOF1, 0xe80), INTC_VECT(SIOF1, 0xea0),
        INTC_VECT(SIOF1, 0xec0), INTC_VECT(SIOF1, 0xee0),
        INTC_VECT(TMU0, 0x400), INTC_VECT(TMU1, 0x420),
        INTC_VECT(TMU2, 0x440),
        INTC_VECT(RTC, 0x480), INTC_VECT(RTC, 0x4a0),
        INTC_VECT(RTC, 0x4c0),
        INTC_VECT(WDT, 0x560),
        INTC_VECT(REF, 0x580),
};

static struct intc_prio_reg prio_registers[] __initdata = {
        { 0xfffffee2, 0, 16, 4, /* IPRA */ { TMU0, TMU1, TMU2, RTC } },
        { 0xfffffee4, 0, 16, 4, /* IPRB */ { WDT, REF, 0, 0 } },
        { 0xa4000016, 0, 16, 4, /* IPRC */ { IRQ3, IRQ2, IRQ1, IRQ0 } },
        { 0xa4000018, 0, 16, 4, /* IPRD */ { 0, 0, IRQ5, IRQ4 } },
        { 0xa400001a, 0, 16, 4, /* IPRE */ { DMAC1, SCIF0, SCIF1 } },
        { 0xa4080000, 0, 16, 4, /* IPRF */ { IPSEC, DMAC2 } },
        { 0xa4080002, 0, 16, 4, /* IPRG */ { EDMAC0, EDMAC1, EDMAC2 } },
        { 0xa4080004, 0, 16, 4, /* IPRH */ { 0, 0, 0, SIOF0 } },
        { 0xa4080006, 0, 16, 4, /* IPRI */ { 0, 0, SIOF1 } },
};

static DECLARE_INTC_DESC(intc_desc, "sh7710", vectors, NULL,
                         NULL, prio_registers, NULL);

static struct resource rtc_resources[] = {
        [0] =   {
                .start  = 0xa413fec0,
                .end    = 0xa413fec0 + 0x1e,
                .flags  = IORESOURCE_IO,
        },
        [1] =   {
                .start  = evt2irq(0x480),
                .flags  = IORESOURCE_IRQ,
        },
};

static struct sh_rtc_platform_info rtc_info = {
        .capabilities   = RTC_CAP_4_DIGIT_YEAR,
};

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

static struct plat_sci_port scif0_platform_data = {
        .scscr          = SCSCR_REIE | SCSCR_CKE1,
        .type           = PORT_SCIF,
};

static struct resource scif0_resources[] = {
        DEFINE_RES_MEM(0xa4400000, 0x100),
        DEFINE_RES_IRQ(evt2irq(0x880)),
};

static struct platform_device scif0_device = {
        .name           = "sh-sci",
        .id             = 0,
        .resource       = scif0_resources,
        .num_resources  = ARRAY_SIZE(scif0_resources),
        .dev            = {
                .platform_data  = &scif0_platform_data,
        },
};

static struct plat_sci_port scif1_platform_data = {
        .scscr          = SCSCR_REIE | SCSCR_CKE1,
        .type           = PORT_SCIF,
};

static struct resource scif1_resources[] = {
        DEFINE_RES_MEM(0xa4410000, 0x100),
        DEFINE_RES_IRQ(evt2irq(0x900)),
};

static struct platform_device scif1_device = {
        .name           = "sh-sci",
        .id             = 1,
        .resource       = scif1_resources,
        .num_resources  = ARRAY_SIZE(scif1_resources),
        .dev            = {
                .platform_data  = &scif1_platform_data,
        },
};

static struct sh_timer_config tmu0_platform_data = {
        .channels_mask = 7,
};

static struct resource tmu0_resources[] = {
        DEFINE_RES_MEM(0xa412fe90, 0x28),
        DEFINE_RES_IRQ(evt2irq(0x400)),
        DEFINE_RES_IRQ(evt2irq(0x420)),
        DEFINE_RES_IRQ(evt2irq(0x440)),
};

static struct platform_device tmu0_device = {
        .name           = "sh-tmu-sh3",
        .id             = 0,
        .dev = {
                .platform_data  = &tmu0_platform_data,
        },
        .resource       = tmu0_resources,
        .num_resources  = ARRAY_SIZE(tmu0_resources),
};

static struct platform_device *sh7710_devices[] __initdata = {
        &scif0_device,
        &scif1_device,
        &tmu0_device,
        &rtc_device,
};

static int __init sh7710_devices_setup(void)
{
        return platform_add_devices(sh7710_devices,
                                    ARRAY_SIZE(sh7710_devices));
}
arch_initcall(sh7710_devices_setup);

static struct platform_device *sh7710_early_devices[] __initdata = {
        &scif0_device,
        &scif1_device,
        &tmu0_device,
};

void __init plat_early_device_setup(void)
{
        early_platform_add_devices(sh7710_early_devices,
                                   ARRAY_SIZE(sh7710_early_devices));
}

void __init plat_irq_setup(void)
{
        register_intc_controller(&intc_desc);
        plat_irq_setup_sh3();
}