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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 <log.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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