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git.ipfire.org Git - people/ms/u-boot.git/blob - arch/arm/mach-rockchip/rk3188-board-spl.c
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 u32
spl_boot_mode(const u32 boot_device
)
77 return MMCSD_MODE_RAW
;
80 static int setup_arm_clock(void)
86 ret
= rockchip_get_clk(&dev
);
91 ret
= clk_request(dev
, &clk
);
95 ret
= clk_set_rate(&clk
, 600000000);
101 void board_init_f(ulong dummy
)
103 struct udevice
*pinctrl
, *dev
;
104 struct rk3188_pmu
*pmu
;
107 /* Example code showing how to enable the debug UART on RK3188 */
109 #include <asm/arch/grf_rk3188.h>
110 /* Enable early UART on the RK3188 */
111 #define GRF_BASE 0x20008000
112 struct rk3188_grf
* const grf
= (void *)GRF_BASE
;
114 rk_clrsetreg(&grf
->gpio1b_iomux
,
115 GPIO1B1_MASK
<< GPIO1B1_SHIFT
|
116 GPIO1B0_MASK
<< GPIO1B0_SHIFT
,
117 GPIO1B1_UART2_SOUT
<< GPIO1B1_SHIFT
|
118 GPIO1B0_UART2_SIN
<< GPIO1B0_SHIFT
);
120 * Debug UART can be used from here if required:
125 * printascii("string");
134 ret
= spl_early_init();
136 debug("spl_early_init() failed: %d\n", ret
);
140 rockchip_timer_init();
142 ret
= rockchip_get_clk(&dev
);
144 debug("CLK init failed: %d\n", ret
);
149 * Recover the bootrom's stackpointer.
150 * For whatever reason needs to run after rockchip_get_clk.
152 pmu
= syscon_get_first_range(ROCKCHIP_SYSCON_PMU
);
154 error("pmu syscon returned %ld\n", PTR_ERR(pmu
));
155 SAVE_SP_ADDR
= readl(&pmu
->sys_reg
[2]);
157 ret
= uclass_get_device(UCLASS_PINCTRL
, 0, &pinctrl
);
159 debug("Pinctrl init failed: %d\n", ret
);
163 ret
= uclass_get_device(UCLASS_RAM
, 0, &dev
);
165 debug("DRAM init failed: %d\n", ret
);
170 #if CONFIG_IS_ENABLED(ROCKCHIP_BACK_TO_BROM) && !defined(CONFIG_SPL_BOARD_INIT)
175 static int setup_led(void)
177 #ifdef CONFIG_SPL_LED
182 led_name
= fdtdec_get_config_string(gd
->fdt_blob
, "u-boot,boot-led");
185 ret
= led_get_by_label(led_name
, &dev
);
187 debug("%s: get=%d\n", __func__
, ret
);
190 ret
= led_set_on(dev
, 1);
198 void spl_board_init(void)
200 struct udevice
*pinctrl
;
205 debug("LED ret=%d\n", ret
);
209 ret
= uclass_get_device(UCLASS_PINCTRL
, 0, &pinctrl
);
211 debug("%s: Cannot find pinctrl device\n", __func__
);
215 #ifdef CONFIG_SPL_MMC_SUPPORT
216 ret
= pinctrl_request_noflags(pinctrl
, PERIPH_ID_SDCARD
);
218 debug("%s: Failed to set up SD card\n", __func__
);
223 /* Enable debug UART */
224 ret
= pinctrl_request_noflags(pinctrl
, PERIPH_ID_UART_DBG
);
226 debug("%s: Failed to set up console UART\n", __func__
);
230 preloader_console_init();
231 #if CONFIG_IS_ENABLED(ROCKCHIP_BACK_TO_BROM)
237 printf("spl_board_init: Error %d\n", ret
);
239 /* No way to report error here */