// SPDX-License-Identifier: GPL-2.0-only
/*
 * Copyright (C) 2008 Maxime Bizon <mbizon@freebox.fr>
 * Copyright (C) 2008 Florian Fainelli <florian@openwrt.org>
 */

#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/platform_device.h>
#include <linux/ssb/ssb.h>
#include <asm/addrspace.h>
#include <bcm63xx_board.h>
#include <bcm63xx_cpu.h>
#include <bcm63xx_dev_uart.h>
#include <bcm63xx_regs.h>
#include <bcm63xx_io.h>
#include <bcm63xx_nvram.h>
#include <bcm63xx_dev_pci.h>
#include <bcm63xx_dev_enet.h>
#include <bcm63xx_dev_flash.h>
#include <bcm63xx_dev_hsspi.h>
#include <bcm63xx_dev_pcmcia.h>
#include <bcm63xx_dev_spi.h>
#include <bcm63xx_dev_usb_usbd.h>
#include <board_bcm963xx.h>

#include <uapi/linux/bcm933xx_hcs.h>

#define HCS_OFFSET_128K                 0x20000

static struct board_info board;

/*
 * known 3368 boards
 */
#ifdef CONFIG_BCM63XX_CPU_3368
static struct board_info __initdata board_cvg834g = {
        .name = "CVG834G_E15R3921",
        .expected_cpu_id = 0x3368,

        .ephy_reset_gpio = 36,
        .ephy_reset_gpio_flags = GPIOF_OUT_INIT_HIGH,
        .has_pci = 1,
        .has_uart0 = 1,
        .has_uart1 = 1,

        .has_enet0 = 1,
        .enet0 = {
                .has_phy = 1,
                .use_internal_phy = 1,
        },

        .leds = {
                {
                        .name = "CVG834G:green:power",
                        .gpio = 37,
                        .default_trigger= "default-on",
                },
        },
};
#endif /* CONFIG_BCM63XX_CPU_3368 */

/*
 * known 6328 boards
 */
#ifdef CONFIG_BCM63XX_CPU_6328
static struct board_info __initdata board_96328avng = {
        .name = "96328avng",
        .expected_cpu_id = 0x6328,

        .has_pci = 1,
        .has_uart0 = 1,

        .has_usbd = 0,
        .usbd = {
                .use_fullspeed = 0,
                .port_no = 0,
        },

        .leds = {
                {
                        .name = "96328avng::ppp-fail",
                        .gpio = 2,
                        .active_low = 1,
                },
                {
                        .name = "96328avng::power",
                        .gpio = 4,
                        .active_low = 1,
                        .default_trigger = "default-on",
                },
                {
                        .name = "96328avng::power-fail",
                        .gpio = 8,
                        .active_low = 1,
                },
                {
                        .name = "96328avng::wps",
                        .gpio = 9,
                        .active_low = 1,
                },
                {
                        .name = "96328avng::ppp",
                        .gpio = 11,
                        .active_low = 1,
                },
        },
};
#endif /* CONFIG_BCM63XX_CPU_6328 */

/*
 * known 6338 boards
 */
#ifdef CONFIG_BCM63XX_CPU_6338
static struct board_info __initdata board_96338gw = {
        .name = "96338GW",
        .expected_cpu_id = 0x6338,

        .has_ohci0 = 1,
        .has_uart0 = 1,

        .has_enet0 = 1,
        .enet0 = {
                .force_speed_100 = 1,
                .force_duplex_full = 1,
        },

        .leds = {
                {
                        .name = "adsl",
                        .gpio = 3,
                        .active_low = 1,
                },
                {
                        .name = "ses",
                        .gpio = 5,
                        .active_low = 1,
                },
                {
                        .name = "ppp-fail",
                        .gpio = 4,
                        .active_low = 1,
                },
                {
                        .name = "power",
                        .gpio = 0,
                        .active_low = 1,
                        .default_trigger = "default-on",
                },
                {
                        .name = "stop",
                        .gpio = 1,
                        .active_low = 1,
                }
        },
};

static struct board_info __initdata board_96338w = {
        .name = "96338W",
        .expected_cpu_id = 0x6338,

        .has_uart0 = 1,

        .has_enet0 = 1,
        .enet0 = {
                .force_speed_100 = 1,
                .force_duplex_full = 1,
        },

        .leds = {
                {
                        .name = "adsl",
                        .gpio = 3,
                        .active_low = 1,
                },
                {
                        .name = "ses",
                        .gpio = 5,
                        .active_low = 1,
                },
                {
                        .name = "ppp-fail",
                        .gpio = 4,
                        .active_low = 1,
                },
                {
                        .name = "power",
                        .gpio = 0,
                        .active_low = 1,
                        .default_trigger = "default-on",
                },
                {
                        .name = "stop",
                        .gpio = 1,
                        .active_low = 1,
                },
        },
};
#endif /* CONFIG_BCM63XX_CPU_6338 */

/*
 * known 6345 boards
 */
#ifdef CONFIG_BCM63XX_CPU_6345
static struct board_info __initdata board_96345gw2 = {
        .name = "96345GW2",
        .expected_cpu_id = 0x6345,

        .has_uart0 = 1,
};
#endif /* CONFIG_BCM63XX_CPU_6345 */

/*
 * known 6348 boards
 */
#ifdef CONFIG_BCM63XX_CPU_6348
static struct board_info __initdata board_96348r = {
        .name = "96348R",
        .expected_cpu_id = 0x6348,

        .has_pci = 1,
        .has_uart0 = 1,

        .has_enet0 = 1,
        .enet0 = {
                .has_phy = 1,
                .use_internal_phy = 1,
        },

        .leds = {
                {
                        .name = "adsl-fail",
                        .gpio = 2,
                        .active_low = 1,
                },
                {
                        .name = "ppp",
                        .gpio = 3,
                        .active_low = 1,
                },
                {
                        .name = "ppp-fail",
                        .gpio = 4,
                        .active_low = 1,
                },
                {
                        .name = "power",
                        .gpio = 0,
                        .active_low = 1,
                        .default_trigger = "default-on",

                },
                {
                        .name = "stop",
                        .gpio = 1,
                        .active_low = 1,
                },
        },
};

static struct board_info __initdata board_96348gw_10 = {
        .name = "96348GW-10",
        .expected_cpu_id = 0x6348,

        .has_ohci0 = 1,
        .has_pccard = 1,
        .has_pci = 1,
        .has_uart0 = 1,

        .has_enet0 = 1,
        .enet0 = {
                .has_phy = 1,
                .use_internal_phy = 1,
        },

        .has_enet1 = 1,
        .enet1 = {
                .force_speed_100 = 1,
                .force_duplex_full = 1,
        },

        .leds = {
                {
                        .name = "adsl-fail",
                        .gpio = 2,
                        .active_low = 1,
                },
                {
                        .name = "ppp",
                        .gpio = 3,
                        .active_low = 1,
                },
                {
                        .name = "ppp-fail",
                        .gpio = 4,
                        .active_low = 1,
                },
                {
                        .name = "power",
                        .gpio = 0,
                        .active_low = 1,
                        .default_trigger = "default-on",
                },
                {
                        .name = "stop",
                        .gpio = 1,
                        .active_low = 1,
                },
        },
};

static struct board_info __initdata board_96348gw_11 = {
        .name = "96348GW-11",
        .expected_cpu_id = 0x6348,

        .has_ohci0 = 1,
        .has_pccard = 1,
        .has_pci = 1,
        .has_uart0 = 1,

        .has_enet0 = 1,
        .enet0 = {
                .has_phy = 1,
                .use_internal_phy = 1,
        },

        .has_enet1 = 1,
        .enet1 = {
                .force_speed_100 = 1,
                .force_duplex_full = 1,
        },

        .leds = {
                {
                        .name = "adsl-fail",
                        .gpio = 2,
                        .active_low = 1,
                },
                {
                        .name = "ppp",
                        .gpio = 3,
                        .active_low = 1,
                },
                {
                        .name = "ppp-fail",
                        .gpio = 4,
                        .active_low = 1,
                },
                {
                        .name = "power",
                        .gpio = 0,
                        .active_low = 1,
                        .default_trigger = "default-on",
                },
                {
                        .name = "stop",
                        .gpio = 1,
                        .active_low = 1,
                },
        },
};

static struct board_info __initdata board_96348gw = {
        .name = "96348GW",
        .expected_cpu_id = 0x6348,

        .has_ohci0 = 1,
        .has_pci = 1,
        .has_uart0 = 1,

        .has_enet0 = 1,
        .enet0 = {
                .has_phy = 1,
                .use_internal_phy = 1,
        },

        .has_enet1 = 1,
        .enet1 = {
                .force_speed_100 = 1,
                .force_duplex_full = 1,
        },

        .leds = {
                {
                        .name = "adsl-fail",
                        .gpio = 2,
                        .active_low = 1,
                },
                {
                        .name = "ppp",
                        .gpio = 3,
                        .active_low = 1,
                },
                {
                        .name = "ppp-fail",
                        .gpio = 4,
                        .active_low = 1,
                },
                {
                        .name = "power",
                        .gpio = 0,
                        .active_low = 1,
                        .default_trigger = "default-on",
                },
                {
                        .name = "stop",
                        .gpio = 1,
                        .active_low = 1,
                },
        },
};

static struct board_info __initdata board_FAST2404 = {
        .name = "F@ST2404",
        .expected_cpu_id = 0x6348,

        .has_ohci0 = 1,
        .has_pccard = 1,
        .has_pci = 1,
        .has_uart0 = 1,

        .has_enet0 = 1,
        .enet0 = {
                .has_phy = 1,
                .use_internal_phy = 1,
        },

        .has_enet1 = 1,
        .enet1 = {
                .force_speed_100 = 1,
                .force_duplex_full = 1,
        },
};

static struct board_info __initdata board_rta1025w_16 = {
        .name = "RTA1025W_16",
        .expected_cpu_id = 0x6348,

        .has_pci = 1,

        .has_enet0 = 1,
        .enet0 = {
                .has_phy = 1,
                .use_internal_phy = 1,
        },

        .has_enet1 = 1,
        .enet1 = {
                .force_speed_100 = 1,
                .force_duplex_full = 1,
        },
};

static struct board_info __initdata board_DV201AMR = {
        .name = "DV201AMR",
        .expected_cpu_id = 0x6348,

        .has_ohci0 = 1,
        .has_pci = 1,
        .has_uart0 = 1,

        .has_enet0 = 1,
        .enet0 = {
                .has_phy = 1,
                .use_internal_phy = 1,
        },

        .has_enet1 = 1,
        .enet1 = {
                .force_speed_100 = 1,
                .force_duplex_full = 1,
        },
};

static struct board_info __initdata board_96348gw_a = {
        .name = "96348GW-A",
        .expected_cpu_id = 0x6348,

        .has_ohci0 = 1,
        .has_pci = 1,
        .has_uart0 = 1,

        .has_enet0 = 1,
        .enet0 = {
                .has_phy = 1,
                .use_internal_phy = 1,
        },

        .has_enet1 = 1,
        .enet1 = {
                .force_speed_100 = 1,
                .force_duplex_full = 1,
        },
};
#endif /* CONFIG_BCM63XX_CPU_6348 */

/*
 * known 6358 boards
 */
#ifdef CONFIG_BCM63XX_CPU_6358
static struct board_info __initdata board_96358vw = {
        .name = "96358VW",
        .expected_cpu_id = 0x6358,

        .has_ehci0 = 1,
        .has_ohci0 = 1,
        .has_pccard = 1,
        .has_pci = 1,
        .has_uart0 = 1,

        .has_enet0 = 1,
        .enet0 = {
                .has_phy = 1,
                .use_internal_phy = 1,
        },

        .has_enet1 = 1,
        .enet1 = {
                .force_speed_100 = 1,
                .force_duplex_full = 1,
        },

        .leds = {
                {
                        .name = "adsl-fail",
                        .gpio = 15,
                        .active_low = 1,
                },
                {
                        .name = "ppp",
                        .gpio = 22,
                        .active_low = 1,
                },
                {
                        .name = "ppp-fail",
                        .gpio = 23,
                        .active_low = 1,
                },
                {
                        .name = "power",
                        .gpio = 4,
                        .default_trigger = "default-on",
                },
                {
                        .name = "stop",
                        .gpio = 5,
                },
        },
};

static struct board_info __initdata board_96358vw2 = {
        .name = "96358VW2",
        .expected_cpu_id = 0x6358,

        .has_ehci0 = 1,
        .has_ohci0 = 1,
        .has_pccard = 1,
        .has_pci = 1,
        .has_uart0 = 1,

        .has_enet0 = 1,
        .enet0 = {
                .has_phy = 1,
                .use_internal_phy = 1,
        },

        .has_enet1 = 1,
        .enet1 = {
                .force_speed_100 = 1,
                .force_duplex_full = 1,
        },

        .leds = {
                {
                        .name = "adsl",
                        .gpio = 22,
                        .active_low = 1,
                },
                {
                        .name = "ppp-fail",
                        .gpio = 23,
                },
                {
                        .name = "power",
                        .gpio = 5,
                        .active_low = 1,
                        .default_trigger = "default-on",
                },
                {
                        .name = "stop",
                        .gpio = 4,
                        .active_low = 1,
                },
        },
};

static struct board_info __initdata board_AGPFS0 = {
        .name = "AGPF-S0",
        .expected_cpu_id = 0x6358,

        .has_ehci0 = 1,
        .has_ohci0 = 1,
        .has_pci = 1,
        .has_uart0 = 1,

        .has_enet0 = 1,
        .enet0 = {
                .has_phy = 1,
                .use_internal_phy = 1,
        },

        .has_enet1 = 1,
        .enet1 = {
                .force_speed_100 = 1,
                .force_duplex_full = 1,
        },
};

static struct board_info __initdata board_DWVS0 = {
        .name = "DWV-S0",
        .expected_cpu_id = 0x6358,

        .has_ehci0 = 1,
        .has_ohci0 = 1,
        .has_pci = 1,

        .has_enet0 = 1,
        .enet0 = {
                .has_phy = 1,
                .use_internal_phy = 1,
        },

        .has_enet1 = 1,
        .enet1 = {
                .force_speed_100 = 1,
                .force_duplex_full = 1,
        },
};
#endif /* CONFIG_BCM63XX_CPU_6358 */

/*
 * all boards
 */
static const struct board_info __initconst *bcm963xx_boards[] = {
#ifdef CONFIG_BCM63XX_CPU_3368
        &board_cvg834g,
#endif /* CONFIG_BCM63XX_CPU_3368 */
#ifdef CONFIG_BCM63XX_CPU_6328
        &board_96328avng,
#endif /* CONFIG_BCM63XX_CPU_6328 */
#ifdef CONFIG_BCM63XX_CPU_6338
        &board_96338gw,
        &board_96338w,
#endif /* CONFIG_BCM63XX_CPU_6338 */
#ifdef CONFIG_BCM63XX_CPU_6345
        &board_96345gw2,
#endif /* CONFIG_BCM63XX_CPU_6345 */
#ifdef CONFIG_BCM63XX_CPU_6348
        &board_96348r,
        &board_96348gw,
        &board_96348gw_10,
        &board_96348gw_11,
        &board_FAST2404,
        &board_DV201AMR,
        &board_96348gw_a,
        &board_rta1025w_16,
#endif /* CONFIG_BCM63XX_CPU_6348 */
#ifdef CONFIG_BCM63XX_CPU_6358
        &board_96358vw,
        &board_96358vw2,
        &board_AGPFS0,
        &board_DWVS0,
#endif /* CONFIG_BCM63XX_CPU_6358 */
};

/*
 * Register a sane SPROMv2 to make the on-board
 * bcm4318 WLAN work
 */
#ifdef CONFIG_SSB_PCIHOST
static struct ssb_sprom bcm63xx_sprom = {
        .revision               = 0x02,
        .board_rev              = 0x17,
        .country_code           = 0x0,
        .ant_available_bg       = 0x3,
        .pa0b0                  = 0x15ae,
        .pa0b1                  = 0xfa85,
        .pa0b2                  = 0xfe8d,
        .pa1b0                  = 0xffff,
        .pa1b1                  = 0xffff,
        .pa1b2                  = 0xffff,
        .gpio0                  = 0xff,
        .gpio1                  = 0xff,
        .gpio2                  = 0xff,
        .gpio3                  = 0xff,
        .maxpwr_bg              = 0x004c,
        .itssi_bg               = 0x00,
        .boardflags_lo          = 0x2848,
        .boardflags_hi          = 0x0000,
};

static int bcm63xx_get_fallback_sprom(struct ssb_bus *bus, struct ssb_sprom *out)
{
        if (bus->bustype == SSB_BUSTYPE_PCI) {
                memcpy(out, &bcm63xx_sprom, sizeof(struct ssb_sprom));
                return 0;
        } else {
                pr_err("unable to fill SPROM for given bustype\n");
                return -EINVAL;
        }
}
#endif /* CONFIG_SSB_PCIHOST */

/*
 * return board name for /proc/cpuinfo
 */
const char *board_get_name(void)
{
        return board.name;
}

/*
 * early init callback, read nvram data from flash and checksum it
 */
void __init board_prom_init(void)
{
        unsigned int i;
        u8 *boot_addr, *cfe;
        char cfe_version[32];
        char *board_name = NULL;
        u32 val;
        struct bcm_hcs *hcs;

        /* read base address of boot chip select (0)
         * 6328/6362 do not have MPI but boot from a fixed address
         */
        if (BCMCPU_IS_6328() || BCMCPU_IS_6362()) {
                val = 0x18000000;
        } else {
                val = bcm_mpi_readl(MPI_CSBASE_REG(0));
                val &= MPI_CSBASE_BASE_MASK;
        }
        boot_addr = (u8 *)KSEG1ADDR(val);

        /* dump cfe version */
        cfe = boot_addr + BCM963XX_CFE_VERSION_OFFSET;
        if (strstarts(cfe, "cfe-")) {
                if(cfe[4] == 'v') {
                        if(cfe[5] == 'd')
                                snprintf(cfe_version, 11, "%s",
                                         (char *) &cfe[5]);
                        else if (cfe[10] > 0)
                                snprintf(cfe_version, sizeof(cfe_version),
                                         "%u.%u.%u-%u.%u-%u", cfe[5], cfe[6],
                                         cfe[7], cfe[8], cfe[9], cfe[10]);
                        else
                                snprintf(cfe_version, sizeof(cfe_version),
                                         "%u.%u.%u-%u.%u", cfe[5], cfe[6],
                                         cfe[7], cfe[8], cfe[9]);
                } else {
                        snprintf(cfe_version, 12, "%s", (char *) &cfe[4]);
                }
        } else {
                strscpy(cfe_version, "unknown");
        }
        pr_info("CFE version: %s\n", cfe_version);

        bcm63xx_nvram_init(boot_addr + BCM963XX_NVRAM_OFFSET);

        if (BCMCPU_IS_3368()) {
                hcs = (struct bcm_hcs *)boot_addr;
                board_name = hcs->filename;
        } else {
                board_name = bcm63xx_nvram_get_name();
        }
        /* find board by name */
        for (i = 0; i < ARRAY_SIZE(bcm963xx_boards); i++) {
                if (strncmp(board_name, bcm963xx_boards[i]->name, 16))
                        continue;
                /* copy, board desc array is marked initdata */
                memcpy(&board, bcm963xx_boards[i], sizeof(board));
                break;
        }

        /* bail out if board is not found, will complain later */
        if (!board.name[0]) {
                char name[17];
                memcpy(name, board_name, 16);
                name[16] = 0;
                pr_err("unknown bcm963xx board: %s\n", name);
                return;
        }

        /* setup pin multiplexing depending on board enabled device,
         * this has to be done this early since PCI init is done
         * inside arch_initcall */
        val = 0;

#ifdef CONFIG_PCI
        if (board.has_pci) {
                bcm63xx_pci_enabled = 1;
                if (BCMCPU_IS_6348())
                        val |= GPIO_MODE_6348_G2_PCI;
        }
#endif /* CONFIG_PCI */

        if (board.has_pccard) {
                if (BCMCPU_IS_6348())
                        val |= GPIO_MODE_6348_G1_MII_PCCARD;
        }

        if (board.has_enet0 && !board.enet0.use_internal_phy) {
                if (BCMCPU_IS_6348())
                        val |= GPIO_MODE_6348_G3_EXT_MII |
                                GPIO_MODE_6348_G0_EXT_MII;
        }

        if (board.has_enet1 && !board.enet1.use_internal_phy) {
                if (BCMCPU_IS_6348())
                        val |= GPIO_MODE_6348_G3_EXT_MII |
                                GPIO_MODE_6348_G0_EXT_MII;
        }

        bcm_gpio_writel(val, GPIO_MODE_REG);
}

/*
 * second stage init callback, good time to panic if we couldn't
 * identify on which board we're running since early printk is working
 */
void __init board_setup(void)
{
        if (!board.name[0])
                panic("unable to detect bcm963xx board");
        pr_info("board name: %s\n", board.name);

        /* make sure we're running on expected cpu */
        if (bcm63xx_get_cpu_id() != board.expected_cpu_id)
                panic("unexpected CPU for bcm963xx board");
}

static struct gpio_led_platform_data bcm63xx_led_data;

static struct platform_device bcm63xx_gpio_leds = {
        .name                   = "leds-gpio",
        .id                     = 0,
        .dev.platform_data      = &bcm63xx_led_data,
};

/*
 * third stage init callback, register all board devices.
 */
int __init board_register_devices(void)
{
        if (board.has_uart0)
                bcm63xx_uart_register(0);

        if (board.has_uart1)
                bcm63xx_uart_register(1);

        if (board.has_pccard)
                bcm63xx_pcmcia_register();

        if (board.has_enet0 &&
            !bcm63xx_nvram_get_mac_address(board.enet0.mac_addr))
                bcm63xx_enet_register(0, &board.enet0);

        if (board.has_enet1 &&
            !bcm63xx_nvram_get_mac_address(board.enet1.mac_addr))
                bcm63xx_enet_register(1, &board.enet1);

        if (board.has_enetsw &&
            !bcm63xx_nvram_get_mac_address(board.enetsw.mac_addr))
                bcm63xx_enetsw_register(&board.enetsw);

        if (board.has_usbd)
                bcm63xx_usbd_register(&board.usbd);

        /* Generate MAC address for WLAN and register our SPROM,
         * do this after registering enet devices
         */
#ifdef CONFIG_SSB_PCIHOST
        if (!bcm63xx_nvram_get_mac_address(bcm63xx_sprom.il0mac)) {
                memcpy(bcm63xx_sprom.et0mac, bcm63xx_sprom.il0mac, ETH_ALEN);
                memcpy(bcm63xx_sprom.et1mac, bcm63xx_sprom.il0mac, ETH_ALEN);
                if (ssb_arch_register_fallback_sprom(
                                &bcm63xx_get_fallback_sprom) < 0)
                        pr_err("failed to register fallback SPROM\n");
        }
#endif /* CONFIG_SSB_PCIHOST */

        bcm63xx_spi_register();

        bcm63xx_hsspi_register();

        bcm63xx_flash_register();

        bcm63xx_led_data.num_leds = ARRAY_SIZE(board.leds);
        bcm63xx_led_data.leds = board.leds;

        platform_device_register(&bcm63xx_gpio_leds);

        if (board.ephy_reset_gpio && board.ephy_reset_gpio_flags)
                gpio_request_one(board.ephy_reset_gpio,
                                board.ephy_reset_gpio_flags, "ephy-reset");

        return 0;
}