// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * Copyright STMicroelectronics, 2007.
 */

#include <linux/types.h>
#include <linux/init.h>
#include <linux/io.h>

#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach-types.h>

/*
 * These are the only hard-coded address offsets we still have to use.
 */
#define NOMADIK_FSMC_BASE       0x10100000      /* FSMC registers */
#define NOMADIK_SDRAMC_BASE     0x10110000      /* SDRAM Controller */
#define NOMADIK_CLCDC_BASE      0x10120000      /* CLCD Controller */
#define NOMADIK_MDIF_BASE       0x10120000      /* MDIF */
#define NOMADIK_DMA0_BASE       0x10130000      /* DMA0 Controller */
#define NOMADIK_IC_BASE         0x10140000      /* Vectored Irq Controller */
#define NOMADIK_DMA1_BASE       0x10150000      /* DMA1 Controller */
#define NOMADIK_USB_BASE        0x10170000      /* USB-OTG conf reg base */
#define NOMADIK_CRYP_BASE       0x10180000      /* Crypto processor */
#define NOMADIK_SHA1_BASE       0x10190000      /* SHA-1 Processor */
#define NOMADIK_XTI_BASE        0x101A0000      /* XTI */
#define NOMADIK_RNG_BASE        0x101B0000      /* Random number generator */
#define NOMADIK_SRC_BASE        0x101E0000      /* SRC base */
#define NOMADIK_WDOG_BASE       0x101E1000      /* Watchdog */
#define NOMADIK_MTU0_BASE       0x101E2000      /* Multiple Timer 0 */
#define NOMADIK_MTU1_BASE       0x101E3000      /* Multiple Timer 1 */
#define NOMADIK_GPIO0_BASE      0x101E4000      /* GPIO0 */
#define NOMADIK_GPIO1_BASE      0x101E5000      /* GPIO1 */
#define NOMADIK_GPIO2_BASE      0x101E6000      /* GPIO2 */
#define NOMADIK_GPIO3_BASE      0x101E7000      /* GPIO3 */
#define NOMADIK_RTC_BASE        0x101E8000      /* Real Time Clock base */
#define NOMADIK_PMU_BASE        0x101E9000      /* Power Management Unit */
#define NOMADIK_OWM_BASE        0x101EA000      /* One wire master */
#define NOMADIK_SCR_BASE        0x101EF000      /* Secure Control registers */
#define NOMADIK_MSP2_BASE       0x101F0000      /* MSP 2 interface */
#define NOMADIK_MSP1_BASE       0x101F1000      /* MSP 1 interface */
#define NOMADIK_UART2_BASE      0x101F2000      /* UART 2 interface */
#define NOMADIK_SSIRx_BASE      0x101F3000      /* SSI 8-ch rx interface */
#define NOMADIK_SSITx_BASE      0x101F4000      /* SSI 8-ch tx interface */
#define NOMADIK_MSHC_BASE       0x101F5000      /* Memory Stick(Pro) Host */
#define NOMADIK_SDI_BASE        0x101F6000      /* SD-card/MM-Card */
#define NOMADIK_I2C1_BASE       0x101F7000      /* I2C1 interface */
#define NOMADIK_I2C0_BASE       0x101F8000      /* I2C0 interface */
#define NOMADIK_MSP0_BASE       0x101F9000      /* MSP 0 interface */
#define NOMADIK_FIRDA_BASE      0x101FA000      /* FIrDA interface */
#define NOMADIK_UART1_BASE      0x101FB000      /* UART 1 interface */
#define NOMADIK_SSP_BASE        0x101FC000      /* SSP interface */
#define NOMADIK_UART0_BASE      0x101FD000      /* UART 0 interface */
#define NOMADIK_SGA_BASE        0x101FE000      /* SGA interface */
#define NOMADIK_L2CC_BASE       0x10210000      /* L2 Cache controller */
#define NOMADIK_UART1_VBASE     0xF01FB000

/* This is needed for LL-debug/earlyprintk/debug-macro.S */
static struct map_desc cpu8815_io_desc[] __initdata = {
        {
                .virtual =      NOMADIK_UART1_VBASE,
                .pfn =          __phys_to_pfn(NOMADIK_UART1_BASE),
                .length =       SZ_4K,
                .type =         MT_DEVICE,
        },
};

static void __init cpu8815_map_io(void)
{
        iotable_init(cpu8815_io_desc, ARRAY_SIZE(cpu8815_io_desc));
}

static void cpu8815_restart(enum reboot_mode mode, const char *cmd)
{
        void __iomem *srcbase = ioremap(NOMADIK_SRC_BASE, SZ_4K);

        /* FIXME: use egpio when implemented */

        /* Write anything to Reset status register */
        writel(1, srcbase + 0x18);
}

static const char * cpu8815_board_compat[] = {
        "st,nomadik-nhk-15",
        "calaosystems,usb-s8815",
        NULL,
};

DT_MACHINE_START(NOMADIK_DT, "Nomadik STn8815")
        .l2c_aux_val    = 0,
        .l2c_aux_mask   = ~0,
        .map_io         = cpu8815_map_io,
        .restart        = cpu8815_restart,
        .dt_compat      = cpu8815_board_compat,
MACHINE_END