u-boot/arch/arm/mach-rockchip/rk3188-board.c

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/*
* (C) Copyright 2015 Google, Inc
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <clk.h>
#include <dm.h>
#include <ram.h>
#include <syscon.h>
#include <asm/io.h>
#include <asm/arch/clock.h>
#include <asm/arch/periph.h>
#include <asm/arch/pmu_rk3288.h>
#include <asm/arch/boot_mode.h>
#include <asm/gpio.h>
#include <dm/pinctrl.h>
DECLARE_GLOBAL_DATA_PTR;
int board_init(void)
{
#if defined(CONFIG_ROCKCHIP_SPL_BACK_TO_BROM)
struct udevice *pinctrl;
int ret;
/*
* We need to implement sdcard iomux here for the further
* initialization, 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)
{
/* FIXME: read back ram size from sys_reg2 */
gd->ram_size = 0x40000000;
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