/*
 * Maintainer :
 *      Tapani Utriainen <linuxfae@technexion.com>
 *
 * SPDX-License-Identifier:     GPL-2.0+
 */
#include <common.h>
#include <netdev.h>
#include <twl4030.h>
#include <asm/io.h>
#include <asm/arch/mmc_host_def.h>
#include <asm/arch/mem.h>
#include <asm/arch/mux.h>
#include <asm/arch/sys_proto.h>
#include <asm/arch/gpio.h>
#include <asm/gpio.h>
#include <asm/mach-types.h>

#include <usb.h>
#include <asm/ehci-omap.h>

#include "tao3530.h"

DECLARE_GLOBAL_DATA_PTR;

int tao3530_revision(void)
{
        int ret = 0;

        /* char *label argument is unused in gpio_request() */
        ret = gpio_request(65, "");
        if (ret) {
                puts("Error: GPIO 65 not available\n");
                goto out;
        }
        MUX_VAL(CP(GPMC_WAIT3), (IEN  | PTU | EN  | M4));

        ret = gpio_request(1, "");
        if (ret) {
                puts("Error: GPIO 1 not available\n");
                goto out2;
        }
        MUX_VAL(CP(SYS_CLKREQ), (IEN  | PTU | EN | M4));

        ret = gpio_direction_input(65);
        if (ret) {
                puts("Error: GPIO 65 not available for input\n");
                goto out3;
        }

        ret =  gpio_direction_input(1);
        if (ret) {
                puts("Error: GPIO 1 not available for input\n");
                goto out3;
        }

        ret = gpio_get_value(65) << 1 | gpio_get_value(1);

out3:
        MUX_VAL(CP(SYS_CLKREQ), (IEN  | PTU | EN | M0));
        gpio_free(1);
out2:
        MUX_VAL(CP(GPMC_WAIT3), (IEN  | PTU | EN  | M0));
        gpio_free(65);
out:

        return ret;
}

#ifdef CONFIG_SPL_BUILD
/*
 * Routine: get_board_mem_timings
 * Description: If we use SPL then there is no x-loader nor config header
 * so we have to setup the DDR timings ourself on both banks.
 */
void get_board_mem_timings(struct board_sdrc_timings *timings)
{
#if defined(CONFIG_SYS_BOARD_OMAP3_HA)
        /*
         * Switch baseboard LED to red upon power-on
         */
        MUX_OMAP3_HA();

        /* Request a gpio before using it */
        gpio_request(111, "");
        /* Sets the gpio as output and its value to 1, switch LED to red */
        gpio_direction_output(111, 1);
#endif

        if (tao3530_revision() < 3) {
                /* 256MB / Bank */
                timings->mcfg = MCFG(256 << 20, 14);    /* RAS-width 14 */
                timings->ctrla = HYNIX_V_ACTIMA_165;
                timings->ctrlb = HYNIX_V_ACTIMB_165;
        } else {
                /* 128MB / Bank */
                timings->mcfg = MCFG(128 << 20, 13);    /* RAS-width 13 */
                timings->ctrla = MICRON_V_ACTIMA_165;
                timings->ctrlb = MICRON_V_ACTIMB_165;
        }

        timings->mr = MICRON_V_MR_165;
        timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz;
}
#endif

/*
 * Routine: board_init
 * Description: Early hardware init.
 */
int board_init(void)
{
        gpmc_init(); /* in SRAM or SDRAM, finish GPMC */
        /* board id for Linux */
        gd->bd->bi_arch_number = MACH_TYPE_OMAP3_TAO3530;
        /* boot param addr */
        gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100);

        return 0;
}

/*
 * Routine: misc_init_r
 * Description: Configure board specific parts
 */
int misc_init_r(void)
{
        struct gpio *gpio5_base = (struct gpio *)OMAP34XX_GPIO5_BASE;
        struct gpio *gpio6_base = (struct gpio *)OMAP34XX_GPIO6_BASE;

        twl4030_power_init();
        twl4030_led_init(TWL4030_LED_LEDEN_LEDAON | TWL4030_LED_LEDEN_LEDBON);

        /* Configure GPIOs to output */
        /* GPIO23 */
        writel(~(GPIO10 | GPIO8 | GPIO2 | GPIO1), &gpio6_base->oe);
        writel(~(GPIO31 | GPIO30 | GPIO22 | GPIO21 |
                 GPIO15 | GPIO14 | GPIO13 | GPIO12), &gpio5_base->oe);

        /* Set GPIOs */
        writel(GPIO10 | GPIO8 | GPIO2 | GPIO1,
               &gpio6_base->setdataout);
        writel(GPIO31 | GPIO30 | GPIO29 | GPIO28 | GPIO22 | GPIO21 |
               GPIO15 | GPIO14 | GPIO13 | GPIO12, &gpio5_base->setdataout);

        switch (tao3530_revision()) {
        case 0:
                puts("TAO-3530 REV Reserve 1\n");
                break;
        case 1:
                puts("TAO-3530 REV Reserve 2\n");
                break;
        case 2:
                puts("TAO-3530 REV Cx\n");
                break;
        case 3:
                puts("TAO-3530 REV Ax/Bx\n");
                break;
        default:
                puts("Unknown board revision\n");
        }

        omap_die_id_display();

        return 0;
}

/*
 * Routine: set_muxconf_regs
 * Description: Setting up the configuration Mux registers specific to the
 *              hardware. Many pins need to be moved from protect to primary
 *              mode.
 */
void set_muxconf_regs(void)
{
        MUX_TAO3530();
#if defined(CONFIG_SYS_BOARD_OMAP3_HA)
        MUX_OMAP3_HA();
#endif
}

#if defined(CONFIG_GENERIC_MMC) && !defined(CONFIG_SPL_BUILD)
int board_mmc_init(bd_t *bis)
{
        omap_mmc_init(0, 0, 0, -1, -1);

        return 0;
}
#endif

#if defined(CONFIG_GENERIC_MMC)
void board_mmc_power_init(void)
{
        twl4030_power_mmc_init(0);
}
#endif

#if defined(CONFIG_USB_EHCI) && !defined(CONFIG_SPL_BUILD)
/* Call usb_stop() before starting the kernel */
void show_boot_progress(int val)
{
        if (val == BOOTSTAGE_ID_RUN_OS)
                usb_stop();
}

static struct omap_usbhs_board_data usbhs_bdata = {
        .port_mode[0] = OMAP_USBHS_PORT_MODE_UNUSED,
        .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
        .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED
};

int ehci_hcd_init(int index, enum usb_init_type init,
                  struct ehci_hccr **hccr, struct ehci_hcor **hcor)
{
        return omap_ehci_hcd_init(index, &usbhs_bdata, hccr, hcor);
}

int ehci_hcd_stop(int index)
{
        return omap_ehci_hcd_stop();
}
#endif /* CONFIG_USB_EHCI */