2 * (C) Copyright 2015 Google, Inc
4 * SPDX-License-Identifier: GPL-2.0+
8 #include <debug_uart.h>
17 #include <asm/arch/bootrom.h>
18 #include <asm/arch/clock.h>
19 #include <asm/arch/hardware.h>
20 #include <asm/arch/periph.h>
21 #include <asm/arch/pmu_rk3188.h>
22 #include <asm/arch/sdram.h>
23 #include <asm/arch/timer.h>
24 #include <dm/pinctrl.h>
28 #include <power/regulator.h>
31 DECLARE_GLOBAL_DATA_PTR;
33 u32 spl_boot_device(void)
35 #if !CONFIG_IS_ENABLED(OF_PLATDATA)
36 const void *blob = gd->fdt_blob;
42 bootdev = fdtdec_get_config_string(blob, "u-boot,boot0");
43 debug("Boot device %s\n", bootdev);
47 node = fdt_path_offset(blob, bootdev);
49 debug("node=%d\n", node);
52 ret = device_get_global_by_of_offset(node, &dev);
54 debug("device at node %s/%d not found: %d\n", bootdev, node,
58 debug("Found device %s\n", dev->name);
59 switch (device_get_uclass_id(dev)) {
60 case UCLASS_SPI_FLASH:
61 return BOOT_DEVICE_SPI;
63 return BOOT_DEVICE_MMC1;
65 debug("Booting from device uclass '%s' not supported\n",
66 dev_get_uclass_name(dev));
71 return BOOT_DEVICE_MMC1;
74 u32 spl_boot_mode(const u32 boot_device)
76 return MMCSD_MODE_RAW;
79 void board_init_f(ulong dummy)
81 struct udevice *pinctrl, *dev;
82 struct rk3188_pmu *pmu;
85 /* Example code showing how to enable the debug UART on RK3188 */
87 #include <asm/arch/grf_rk3188.h>
88 /* Enable early UART on the RK3188 */
89 #define GRF_BASE 0x20008000
90 struct rk3188_grf * const grf = (void *)GRF_BASE;
92 rk_clrsetreg(&grf->gpio1b_iomux,
93 GPIO1B1_MASK << GPIO1B1_SHIFT |
94 GPIO1B0_MASK << GPIO1B0_SHIFT,
95 GPIO1B1_UART2_SOUT << GPIO1B1_SHIFT |
96 GPIO1B0_UART2_SIN << GPIO1B0_SHIFT);
98 * Debug UART can be used from here if required:
103 * printascii("string");
114 debug("spl_init() failed: %d\n", ret);
118 rockchip_timer_init();
120 ret = rockchip_get_clk(&dev);
122 debug("CLK init failed: %d\n", ret);
127 * Recover the bootrom's stackpointer.
128 * For whatever reason needs to run after rockchip_get_clk.
130 pmu = syscon_get_first_range(ROCKCHIP_SYSCON_PMU);
132 error("pmu syscon returned %ld\n", PTR_ERR(pmu));
133 SAVE_SP_ADDR = readl(&pmu->sys_reg[2]);
135 ret = uclass_get_device(UCLASS_PINCTRL, 0, &pinctrl);
137 debug("Pinctrl init failed: %d\n", ret);
141 ret = uclass_get_device(UCLASS_RAM, 0, &dev);
143 debug("DRAM init failed: %d\n", ret);
147 #if defined(CONFIG_ROCKCHIP_SPL_BACK_TO_BROM) && !defined(CONFIG_SPL_BOARD_INIT)
152 static int setup_led(void)
154 #ifdef CONFIG_SPL_LED
159 led_name = fdtdec_get_config_string(gd->fdt_blob, "u-boot,boot-led");
162 ret = led_get_by_label(led_name, &dev);
164 debug("%s: get=%d\n", __func__, ret);
167 ret = led_set_on(dev, 1);
175 void spl_board_init(void)
177 struct udevice *pinctrl;
182 debug("LED ret=%d\n", ret);
186 ret = uclass_get_device(UCLASS_PINCTRL, 0, &pinctrl);
188 debug("%s: Cannot find pinctrl device\n", __func__);
192 #ifdef CONFIG_SPL_MMC_SUPPORT
193 ret = pinctrl_request_noflags(pinctrl, PERIPH_ID_SDCARD);
195 debug("%s: Failed to set up SD card\n", __func__);
200 /* Enable debug UART */
201 ret = pinctrl_request_noflags(pinctrl, PERIPH_ID_UART_DBG);
203 debug("%s: Failed to set up console UART\n", __func__);
207 preloader_console_init();
208 #ifdef CONFIG_ROCKCHIP_SPL_BACK_TO_BROM
214 printf("spl_board_init: Error %d\n", ret);
216 /* No way to report error here */