/*
 * (C) Copyright 2015 Google, Inc
 *
 * SPDX-License-Identifier:     GPL-2.0+
 */

#include <common.h>
#include <clk.h>
#include <dm.h>
#include <ram.h>
#include <asm/io.h>
#include <asm/arch/clock.h>
#include <asm/arch/periph.h>
#include <asm/gpio.h>
#include <dm/pinctrl.h>

DECLARE_GLOBAL_DATA_PTR;

int board_init(void)
{
#ifdef CONFIG_ROCKCHIP_SPL_BACK_TO_BROM
        struct udevice *pinctrl;
        int ret;

    /*
     * We need to implement sdcard iomux here for the further
     * initlization, otherwise, it'll hit sdcard command sending
     * timeout exception.
     */
        ret = uclass_get_device(UCLASS_PINCTRL, 0, &pinctrl);
        if (ret) {
                debug("%s: Cannot find pinctrl device\n", __func__);
                goto err;
        }
        ret = pinctrl_request_noflags(pinctrl, PERIPH_ID_SDCARD);
        if (ret) {
                debug("%s: Failed to set up SD card\n", __func__);
                goto err;
        }

        return 0;
err:
        printf("board_init: Error %d\n", ret);

        /* No way to report error here */
        hang();

        return -1;
#else
        return 0;
#endif
}

int dram_init(void)
{
        struct ram_info ram;
        struct udevice *dev;
        int ret;

        ret = uclass_get_device(UCLASS_RAM, 0, &dev);
        if (ret) {
                debug("DRAM init failed: %d\n", ret);
                return ret;
        }
        ret = ram_get_info(dev, &ram);
        if (ret) {
                debug("Cannot get DRAM size: %d\n", ret);
                return ret;
        }
        debug("SDRAM base=%lx, size=%x\n", ram.base, ram.size);
        gd->ram_size = ram.size;

        return 0;
}

#ifndef CONFIG_SYS_DCACHE_OFF
void enable_caches(void)
{
        /* Enable D-cache. I-cache is already enabled in start.S */
        dcache_enable();
}
#endif

void lowlevel_init(void)
{
}

#if defined(CONFIG_USB_GADGET) && defined(CONFIG_USB_GADGET_DWC2_OTG)
#include <usb.h>
#include <usb/dwc2_udc.h>

static struct dwc2_plat_otg_data rk3288_otg_data = {
        .rx_fifo_sz     = 512,
        .np_tx_fifo_sz  = 16,
        .tx_fifo_sz     = 128,
};

int board_usb_init(int index, enum usb_init_type init)
{
        int node, phy_node;
        const char *mode;
        bool matched = false;
        const void *blob = gd->fdt_blob;
        u32 grf_phy_offset;

        /* find the usb_otg node */
        node = fdt_node_offset_by_compatible(blob, -1,
                                        "rockchip,rk3288-usb");

        while (node > 0) {
                mode = fdt_getprop(blob, node, "dr_mode", NULL);
                if (mode && strcmp(mode, "otg") == 0) {
                        matched = true;
                        break;
                }

                node = fdt_node_offset_by_compatible(blob, node,
                                        "rockchip,rk3288-usb");
        }
        if (!matched) {
                debug("Not found usb_otg device\n");
                return -ENODEV;
        }
        rk3288_otg_data.regs_otg = fdtdec_get_addr(blob, node, "reg");

        node = fdtdec_lookup_phandle(blob, node, "phys");
        if (node <= 0) {
                debug("Not found usb phy device\n");
                return -ENODEV;
        }

        phy_node = fdt_parent_offset(blob, node);
        if (phy_node <= 0) {
                debug("Not found usb phy device\n");
                return -ENODEV;
        }

        rk3288_otg_data.phy_of_node = phy_node;
        grf_phy_offset = fdtdec_get_addr(blob, node, "reg");

        /* find the grf node */
        node = fdt_node_offset_by_compatible(blob, -1,
                                        "rockchip,rk3288-grf");
        if (node <= 0) {
                debug("Not found grf device\n");
                return -ENODEV;
        }
        rk3288_otg_data.regs_phy = grf_phy_offset +
                                fdtdec_get_addr(blob, node, "reg");

        return dwc2_udc_probe(&rk3288_otg_data);
}

int board_usb_cleanup(int index, enum usb_init_type init)
{
        return 0;
}
#endif

static int do_clock(cmd_tbl_t *cmdtp, int flag, int argc,
                       char * const argv[])
{
        static const struct {
                char *name;
                int id;
        } clks[] = {
                { "osc", CLK_OSC },
                { "apll", CLK_ARM },
                { "dpll", CLK_DDR },
                { "cpll", CLK_CODEC },
                { "gpll", CLK_GENERAL },
#ifdef CONFIG_ROCKCHIP_RK3036
                { "mpll", CLK_NEW },
#else
                { "npll", CLK_NEW },
#endif
        };
        int ret, i;
        struct udevice *dev;

        ret = rockchip_get_clk(&dev);
        if (ret) {
                printf("clk-uclass not found\n");
                return 0;
        }

        for (i = 0; i < ARRAY_SIZE(clks); i++) {
                struct clk clk;
                ulong rate;

                clk.id = clks[i].id;
                ret = clk_request(dev, &clk);
                if (ret < 0)
                        continue;

                rate = clk_get_rate(&clk);
                printf("%s: %lu\n", clks[i].name, rate);

                clk_free(&clk);
        }

        return 0;
}

U_BOOT_CMD(
        clock, 2, 1, do_clock,
        "display information about clocks",
        ""
);