2 * (C) Copyright 2015 Google, Inc
4 * SPDX-License-Identifier: GPL-2.0+
9 #include <debug_uart.h>
18 #include <asm/arch/bootrom.h>
19 #include <asm/arch/clock.h>
20 #include <asm/arch/hardware.h>
21 #include <asm/arch/periph.h>
22 #include <asm/arch/pmu_rk3188.h>
23 #include <asm/arch/sdram.h>
24 #include <asm/arch/timer.h>
25 #include <dm/pinctrl.h>
29 #include <power/regulator.h>
32 DECLARE_GLOBAL_DATA_PTR;
34 u32 spl_boot_device(void)
36 #if !CONFIG_IS_ENABLED(OF_PLATDATA)
37 const void *blob = gd->fdt_blob;
43 bootdev = fdtdec_get_config_string(blob, "u-boot,boot0");
44 debug("Boot device %s\n", bootdev);
48 node = fdt_path_offset(blob, bootdev);
50 debug("node=%d\n", node);
53 ret = device_get_global_by_of_offset(node, &dev);
55 debug("device at node %s/%d not found: %d\n", bootdev, node,
59 debug("Found device %s\n", dev->name);
60 switch (device_get_uclass_id(dev)) {
61 case UCLASS_SPI_FLASH:
62 return BOOT_DEVICE_SPI;
64 return BOOT_DEVICE_MMC1;
66 debug("Booting from device uclass '%s' not supported\n",
67 dev_get_uclass_name(dev));
72 return BOOT_DEVICE_MMC1;
75 static int setup_arm_clock(void)
81 ret = rockchip_get_clk(&dev);
86 ret = clk_request(dev, &clk);
90 ret = clk_set_rate(&clk, 600000000);
96 void board_init_f(ulong dummy)
98 struct udevice *pinctrl, *dev;
101 /* Example code showing how to enable the debug UART on RK3188 */
103 #include <asm/arch/grf_rk3188.h>
104 /* Enable early UART on the RK3188 */
105 #define GRF_BASE 0x20008000
106 struct rk3188_grf * const grf = (void *)GRF_BASE;
108 rk_clrsetreg(&grf->gpio1b_iomux,
109 GPIO1B1_MASK << GPIO1B1_SHIFT |
110 GPIO1B0_MASK << GPIO1B0_SHIFT,
111 GPIO1B1_UART2_SOUT << GPIO1B1_SHIFT |
112 GPIO1B0_UART2_SIN << GPIO1B0_SHIFT);
114 * Debug UART can be used from here if required:
119 * printascii("string");
128 ret = spl_early_init();
130 debug("spl_early_init() failed: %d\n", ret);
134 rockchip_timer_init();
136 ret = rockchip_get_clk(&dev);
138 debug("CLK init failed: %d\n", ret);
142 ret = uclass_get_device(UCLASS_PINCTRL, 0, &pinctrl);
144 debug("Pinctrl init failed: %d\n", ret);
148 ret = uclass_get_device(UCLASS_RAM, 0, &dev);
150 debug("DRAM init failed: %d\n", ret);
155 #if CONFIG_IS_ENABLED(ROCKCHIP_BACK_TO_BROM) && !defined(CONFIG_SPL_BOARD_INIT)
156 back_to_bootrom(BROM_BOOT_NEXTSTAGE);
160 static int setup_led(void)
162 #ifdef CONFIG_SPL_LED
167 led_name = fdtdec_get_config_string(gd->fdt_blob, "u-boot,boot-led");
170 ret = led_get_by_label(led_name, &dev);
172 debug("%s: get=%d\n", __func__, ret);
175 ret = led_set_on(dev, 1);
183 void spl_board_init(void)
185 struct udevice *pinctrl;
190 debug("LED ret=%d\n", ret);
194 ret = uclass_get_device(UCLASS_PINCTRL, 0, &pinctrl);
196 debug("%s: Cannot find pinctrl device\n", __func__);
200 #ifdef CONFIG_SPL_MMC_SUPPORT
201 ret = pinctrl_request_noflags(pinctrl, PERIPH_ID_SDCARD);
203 debug("%s: Failed to set up SD card\n", __func__);
208 /* Enable debug UART */
209 ret = pinctrl_request_noflags(pinctrl, PERIPH_ID_UART_DBG);
211 debug("%s: Failed to set up console UART\n", __func__);
215 preloader_console_init();
216 #if CONFIG_IS_ENABLED(ROCKCHIP_BACK_TO_BROM)
217 back_to_bootrom(BROM_BOOT_NEXTSTAGE);
222 printf("spl_board_init: Error %d\n", ret);
224 /* No way to report error here */