// SPDX-License-Identifier: GPL-2.0-only
/*
 *  Support for Cogent CSB726
 *
 *  Copyright (c) 2008 Dmitry Eremin-Solenikov
 */
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/io.h>
#include <linux/gpio/machine.h>
#include <linux/platform_device.h>
#include <linux/mtd/physmap.h>
#include <linux/mtd/partitions.h>
#include <linux/sm501.h>
#include <linux/smsc911x.h>
#include <linux/platform_data/i2c-pxa.h>

#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include "csb726.h"
#include "pxa27x.h"
#include <linux/platform_data/mmc-pxamci.h>
#include <linux/platform_data/usb-ohci-pxa27x.h>
#include <mach/audio.h>
#include <mach/smemc.h>

#include "generic.h"
#include "devices.h"

/*
 * n/a: 2, 5, 6, 7, 8, 23, 24, 25, 26, 27, 87, 88, 89,
 * nu: 58 -- 77, 90, 91, 93, 102, 105-108, 114-116,
 * XXX: 21,
 * XXX: 79 CS_3 for LAN9215 or PSKTSEL on R2, R3
 * XXX: 33 CS_5 for LAN9215 on R1
 */

static unsigned long csb726_pin_config[] = {
        GPIO78_nCS_2, /* EXP_CS */
        GPIO79_nCS_3, /* SMSC9215 */
        GPIO80_nCS_4, /* SM501 */

        GPIO52_GPIO, /* #SMSC9251 int */
        GPIO53_GPIO, /* SM501 int */

        GPIO1_GPIO, /* GPIO0 */
        GPIO11_GPIO, /* GPIO1 */
        GPIO9_GPIO, /* GPIO2 */
        GPIO10_GPIO, /* GPIO3 */
        GPIO16_PWM0_OUT, /* or GPIO4 */
        GPIO17_PWM1_OUT, /* or GPIO5 */
        GPIO94_GPIO, /* GPIO6 */
        GPIO95_GPIO, /* GPIO7 */
        GPIO96_GPIO, /* GPIO8 */
        GPIO97_GPIO, /* GPIO9 */
        GPIO15_GPIO, /* EXP_IRQ */
        GPIO18_RDY, /* EXP_WAIT */

        GPIO0_GPIO, /* PWR_INT */
        GPIO104_GPIO, /* PWR_OFF */

        GPIO12_GPIO, /* touch irq */

        GPIO13_SSP2_TXD,
        GPIO14_SSP2_SFRM,
        MFP_CFG_OUT(GPIO19, AF1, DRIVE_LOW),/* SSP2_SYSCLK */
        GPIO22_SSP2_SCLK,

        GPIO81_SSP3_TXD,
        GPIO82_SSP3_RXD,
        GPIO83_SSP3_SFRM,
        GPIO84_SSP3_SCLK,

        GPIO20_GPIO, /* SDIO int */
        GPIO32_MMC_CLK,
        GPIO92_MMC_DAT_0,
        GPIO109_MMC_DAT_1,
        GPIO110_MMC_DAT_2,
        GPIO111_MMC_DAT_3,
        GPIO112_MMC_CMD,
        GPIO100_GPIO, /* SD CD */
        GPIO101_GPIO, /* SD WP */

        GPIO28_AC97_BITCLK,
        GPIO29_AC97_SDATA_IN_0,
        GPIO30_AC97_SDATA_OUT,
        GPIO31_AC97_SYNC,
        GPIO113_AC97_nRESET,

        GPIO34_FFUART_RXD,
        GPIO35_FFUART_CTS,
        GPIO36_FFUART_DCD,
        GPIO37_FFUART_DSR,
        GPIO38_FFUART_RI,
        GPIO39_FFUART_TXD,
        GPIO40_FFUART_DTR,
        GPIO41_FFUART_RTS,

        GPIO42_BTUART_RXD,
        GPIO43_BTUART_TXD,
        GPIO44_BTUART_CTS,
        GPIO45_BTUART_RTS,

        GPIO46_STUART_RXD,
        GPIO47_STUART_TXD,

        GPIO48_nPOE,
        GPIO49_nPWE,
        GPIO50_nPIOR,
        GPIO51_nPIOW,
        GPIO54_nPCE_2,
        GPIO55_nPREG,
        GPIO56_nPWAIT,
        GPIO57_nIOIS16, /* maybe unused */
        GPIO85_nPCE_1,
        GPIO98_GPIO, /* CF IRQ */
        GPIO99_GPIO, /* CF CD */
        GPIO103_GPIO, /* Reset */

        GPIO117_I2C_SCL,
        GPIO118_I2C_SDA,
};

static struct pxamci_platform_data csb726_mci = {
        .detect_delay_ms        = 500,
        .ocr_mask               = MMC_VDD_32_33|MMC_VDD_33_34,
        /* FIXME setpower */
};

static struct gpiod_lookup_table csb726_mci_gpio_table = {
        .dev_id = "pxa2xx-mci.0",
        .table = {
                /* Card detect on GPIO 100 */
                GPIO_LOOKUP("gpio-pxa", CSB726_GPIO_MMC_DETECT,
                            "cd", GPIO_ACTIVE_LOW),
                /* Write protect on GPIO 101 */
                GPIO_LOOKUP("gpio-pxa", CSB726_GPIO_MMC_RO,
                            "wp", GPIO_ACTIVE_LOW),
                { },
        },
};

static struct pxaohci_platform_data csb726_ohci_platform_data = {
        .port_mode      = PMM_NPS_MODE,
        .flags          = ENABLE_PORT1 | NO_OC_PROTECTION,
};

static struct mtd_partition csb726_flash_partitions[] = {
        {
                .name           = "Bootloader",
                .offset         = 0,
                .size           = CSB726_FLASH_uMON,
                .mask_flags     = MTD_WRITEABLE  /* force read-only */
        },
        {
                .name           = "root",
                .offset         = MTDPART_OFS_APPEND,
                .size           = MTDPART_SIZ_FULL,
        }
};

static struct physmap_flash_data csb726_flash_data = {
        .width          = 2,
        .parts          = csb726_flash_partitions,
        .nr_parts       = ARRAY_SIZE(csb726_flash_partitions),
};

static struct resource csb726_flash_resources[] = {
        {
                .start          = PXA_CS0_PHYS,
                .end            = PXA_CS0_PHYS + CSB726_FLASH_SIZE - 1 ,
                .flags          = IORESOURCE_MEM,
        }
};

static struct platform_device csb726_flash = {
        .name           = "physmap-flash",
        .dev            = {
                .platform_data  = &csb726_flash_data,
        },
        .resource       = csb726_flash_resources,
        .num_resources  = ARRAY_SIZE(csb726_flash_resources),
};

static struct resource csb726_sm501_resources[] = {
        {
                .start          = PXA_CS4_PHYS,
                .end            = PXA_CS4_PHYS + SZ_8M - 1,
                .flags          = IORESOURCE_MEM,
                .name           = "sm501-localmem",
        },
        {
                .start          = PXA_CS4_PHYS + SZ_64M - SZ_2M,
                .end            = PXA_CS4_PHYS + SZ_64M - 1,
                .flags          = IORESOURCE_MEM,
                .name           = "sm501-regs",
        },
        {
                .start          = CSB726_IRQ_SM501,
                .end            = CSB726_IRQ_SM501,
                .flags          = IORESOURCE_IRQ,
        },
};

static struct sm501_initdata csb726_sm501_initdata = {
/*      .devices        = SM501_USE_USB_HOST, */
        .devices        = SM501_USE_USB_HOST | SM501_USE_UART0 | SM501_USE_UART1,
};

static struct sm501_platdata csb726_sm501_platdata = {
        .init           = &csb726_sm501_initdata,
};

static struct platform_device csb726_sm501 = {
        .name           = "sm501",
        .id             = 0,
        .num_resources  = ARRAY_SIZE(csb726_sm501_resources),
        .resource       = csb726_sm501_resources,
        .dev            = {
                .platform_data = &csb726_sm501_platdata,
        },
};

static struct resource csb726_lan_resources[] = {
        {
                .start  = PXA_CS3_PHYS,
                .end    = PXA_CS3_PHYS + SZ_64K - 1,
                .flags  = IORESOURCE_MEM,
        },
        {
                .start  = CSB726_IRQ_LAN,
                .end    = CSB726_IRQ_LAN,
                .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE,
        },
};

struct smsc911x_platform_config csb726_lan_config = {
        .irq_polarity   = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
        .irq_type       = SMSC911X_IRQ_TYPE_PUSH_PULL,
        .flags          = SMSC911X_USE_32BIT,
        .phy_interface  = PHY_INTERFACE_MODE_MII,
};


static struct platform_device csb726_lan = {
        .name           = "smsc911x",
        .id             = -1,
        .num_resources  = ARRAY_SIZE(csb726_lan_resources),
        .resource       = csb726_lan_resources,
        .dev            = {
                .platform_data  = &csb726_lan_config,
        },
};

static struct platform_device *devices[] __initdata = {
        &csb726_flash,
        &csb726_sm501,
        &csb726_lan,
};

static void __init csb726_init(void)
{
        pxa2xx_mfp_config(ARRAY_AND_SIZE(csb726_pin_config));
/*      __raw_writel(0x7ffc3ffc, MSC1); *//* LAN9215/EXP_CS */
/*      __raw_writel(0x06697ff4, MSC2); *//* none/SM501 */
        __raw_writel((__raw_readl(MSC2) & ~0xffff) | 0x7ff4, MSC2); /* SM501 */

        pxa_set_ffuart_info(NULL);
        pxa_set_btuart_info(NULL);
        pxa_set_stuart_info(NULL);
        pxa_set_i2c_info(NULL);
        pxa27x_set_i2c_power_info(NULL);
        gpiod_add_lookup_table(&csb726_mci_gpio_table);
        pxa_set_mci_info(&csb726_mci);
        pxa_set_ohci_info(&csb726_ohci_platform_data);
        pxa_set_ac97_info(NULL);

        platform_add_devices(devices, ARRAY_SIZE(devices));
}

MACHINE_START(CSB726, "Cogent CSB726")
        .atag_offset    = 0x100,
        .map_io         = pxa27x_map_io,
        .nr_irqs        = PXA_NR_IRQS,
        .init_irq       = pxa27x_init_irq,
        .handle_irq       = pxa27x_handle_irq,
        .init_machine   = csb726_init,
        .init_time      = pxa_timer_init,
        .restart        = pxa_restart,
MACHINE_END