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// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2019 Rockchip Electronics Co., Ltd
*/
#include <common.h>
#include <dm.h>
#include <hang.h>
#include <init.h>
#include <syscon.h>
#include <asm/io.h>
#include <asm/arch-rockchip/bootrom.h>
#include <asm/arch-rockchip/clock.h>
#include <asm/arch-rockchip/grf_rk3188.h>
#include <asm/arch-rockchip/hardware.h>
#include <linux/err.h>
#define GRF_BASE 0x20008000
const char * const boot_devices[BROM_LAST_BOOTSOURCE + 1] = {
[BROM_BOOTSOURCE_EMMC] = "/dwmmc@1021c000",
[BROM_BOOTSOURCE_SD] = "/dwmmc@10214000",
};
#ifdef CONFIG_DEBUG_UART_BOARD_INIT
void board_debug_uart_init(void)
{
/* Enable early UART on the RK3188 */
struct rk3188_grf * const grf = (void *)GRF_BASE;
enum {
GPIO1B1_SHIFT = 2,
GPIO1B1_MASK = 3,
GPIO1B1_GPIO = 0,
GPIO1B1_UART2_SOUT,
GPIO1B1_JTAG_TDO,
GPIO1B0_SHIFT = 0,
GPIO1B0_MASK = 3,
GPIO1B0_GPIO = 0,
GPIO1B0_UART2_SIN,
GPIO1B0_JTAG_TDI,
};
rk_clrsetreg(&grf->gpio1b_iomux,
GPIO1B1_MASK << GPIO1B1_SHIFT |
GPIO1B0_MASK << GPIO1B0_SHIFT,
GPIO1B1_UART2_SOUT << GPIO1B1_SHIFT |
GPIO1B0_UART2_SIN << GPIO1B0_SHIFT);
}
#endif
#ifdef CONFIG_SPL_BUILD
int arch_cpu_init(void)
{
struct rk3188_grf *grf;
grf = syscon_get_first_range(ROCKCHIP_SYSCON_GRF);
if (IS_ERR(grf)) {
pr_err("grf syscon returned %ld\n", PTR_ERR(grf));
return 0;
}
#ifdef CONFIG_ROCKCHIP_USB_UART
rk_clrsetreg(&grf->uoc0_con[0],
SIDDQ_MASK | UOC_DISABLE_MASK | COMMON_ON_N_MASK,
1 << SIDDQ_SHIFT | 1 << UOC_DISABLE_SHIFT |
1 << COMMON_ON_N_SHIFT);
rk_clrsetreg(&grf->uoc0_con[2],
SOFT_CON_SEL_MASK, 1 << SOFT_CON_SEL_SHIFT);
rk_clrsetreg(&grf->uoc0_con[3],
OPMODE_MASK | XCVRSELECT_MASK |
TERMSEL_FULLSPEED_MASK | SUSPENDN_MASK,
OPMODE_NODRIVING << OPMODE_SHIFT |
XCVRSELECT_FSTRANSC << XCVRSELECT_SHIFT |
1 << TERMSEL_FULLSPEED_SHIFT |
1 << SUSPENDN_SHIFT);
rk_clrsetreg(&grf->uoc0_con[0],
BYPASSSEL_MASK | BYPASSDMEN_MASK,
1 << BYPASSSEL_SHIFT | 1 << BYPASSDMEN_SHIFT);
#endif
/* enable noc remap to mimic legacy loaders */
rk_clrsetreg(&grf->soc_con0,
NOC_REMAP_MASK << NOC_REMAP_SHIFT,
NOC_REMAP_MASK << NOC_REMAP_SHIFT);
return 0;
}
#endif
#ifdef CONFIG_SPL_BUILD
static int setup_led(void)
{
#ifdef CONFIG_SPL_LED
struct udevice *dev;
char *led_name;
int ret;
led_name = fdtdec_get_config_string(gd->fdt_blob, "u-boot,boot-led");
if (!led_name)
return 0;
ret = led_get_by_label(led_name, &dev);
if (ret) {
debug("%s: get=%d\n", __func__, ret);
return ret;
}
ret = led_set_on(dev, 1);
if (ret)
return ret;
#endif
return 0;
}
void spl_board_init(void)
{
int ret;
ret = setup_led();
if (ret) {
debug("LED ret=%d\n", ret);
hang();
}
}
#endif
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