blob: 05d4ae682f7ced0c0727d335010c5b1e153a6c68 [file] [log] [blame]
Heiko Stübner0b3c26a2017-02-18 19:46:38 +01001/*
2 * (C) Copyright 2015 Google, Inc
3 *
4 * SPDX-License-Identifier: GPL-2.0+
5 */
6
Heiko Stübnerba188bb2017-03-20 12:40:33 +01007#include <clk.h>
Heiko Stübner0b3c26a2017-02-18 19:46:38 +01008#include <common.h>
9#include <debug_uart.h>
10#include <dm.h>
11#include <fdtdec.h>
12#include <led.h>
13#include <malloc.h>
14#include <ram.h>
15#include <spl.h>
16#include <asm/gpio.h>
17#include <asm/io.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>
26#include <dm/root.h>
27#include <dm/test.h>
28#include <dm/util.h>
29#include <power/regulator.h>
30#include <syscon.h>
31
32DECLARE_GLOBAL_DATA_PTR;
33
34u32 spl_boot_device(void)
35{
36#if !CONFIG_IS_ENABLED(OF_PLATDATA)
37 const void *blob = gd->fdt_blob;
38 struct udevice *dev;
39 const char *bootdev;
40 int node;
41 int ret;
42
43 bootdev = fdtdec_get_config_string(blob, "u-boot,boot0");
44 debug("Boot device %s\n", bootdev);
45 if (!bootdev)
46 goto fallback;
47
48 node = fdt_path_offset(blob, bootdev);
49 if (node < 0) {
50 debug("node=%d\n", node);
51 goto fallback;
52 }
53 ret = device_get_global_by_of_offset(node, &dev);
54 if (ret) {
55 debug("device at node %s/%d not found: %d\n", bootdev, node,
56 ret);
57 goto fallback;
58 }
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;
63 case UCLASS_MMC:
64 return BOOT_DEVICE_MMC1;
65 default:
66 debug("Booting from device uclass '%s' not supported\n",
67 dev_get_uclass_name(dev));
68 }
69
70fallback:
71#endif
72 return BOOT_DEVICE_MMC1;
73}
74
75u32 spl_boot_mode(const u32 boot_device)
76{
77 return MMCSD_MODE_RAW;
78}
79
Heiko Stübnerba188bb2017-03-20 12:40:33 +010080static int setup_arm_clock(void)
81{
82 struct udevice *dev;
83 struct clk clk;
84 int ret;
85
86 ret = rockchip_get_clk(&dev);
87 if (ret)
88 return ret;
89
90 clk.id = CLK_ARM;
91 ret = clk_request(dev, &clk);
92 if (ret < 0)
93 return ret;
94
95 ret = clk_set_rate(&clk, 600000000);
96
97 clk_free(&clk);
98 return ret;
99}
100
Heiko Stübner0b3c26a2017-02-18 19:46:38 +0100101void board_init_f(ulong dummy)
102{
103 struct udevice *pinctrl, *dev;
Heiko Stübner0b3c26a2017-02-18 19:46:38 +0100104 int ret;
105
106 /* Example code showing how to enable the debug UART on RK3188 */
107#ifdef EARLY_UART
108#include <asm/arch/grf_rk3188.h>
109 /* Enable early UART on the RK3188 */
110#define GRF_BASE 0x20008000
111 struct rk3188_grf * const grf = (void *)GRF_BASE;
112
113 rk_clrsetreg(&grf->gpio1b_iomux,
114 GPIO1B1_MASK << GPIO1B1_SHIFT |
115 GPIO1B0_MASK << GPIO1B0_SHIFT,
116 GPIO1B1_UART2_SOUT << GPIO1B1_SHIFT |
117 GPIO1B0_UART2_SIN << GPIO1B0_SHIFT);
118 /*
119 * Debug UART can be used from here if required:
120 *
121 * debug_uart_init();
122 * printch('a');
123 * printhex8(0x1234);
124 * printascii("string");
125 */
126 debug_uart_init();
127 printch('s');
128 printch('p');
129 printch('l');
130 printch('\n');
131#endif
132
Kever Yange603a3d2017-03-20 14:47:16 +0800133 ret = spl_early_init();
Heiko Stübner0b3c26a2017-02-18 19:46:38 +0100134 if (ret) {
Kever Yange603a3d2017-03-20 14:47:16 +0800135 debug("spl_early_init() failed: %d\n", ret);
Heiko Stübner0b3c26a2017-02-18 19:46:38 +0100136 hang();
137 }
138
139 rockchip_timer_init();
140
141 ret = rockchip_get_clk(&dev);
142 if (ret) {
143 debug("CLK init failed: %d\n", ret);
144 return;
145 }
146
Heiko Stübner0b3c26a2017-02-18 19:46:38 +0100147 ret = uclass_get_device(UCLASS_PINCTRL, 0, &pinctrl);
148 if (ret) {
149 debug("Pinctrl init failed: %d\n", ret);
150 return;
151 }
152
153 ret = uclass_get_device(UCLASS_RAM, 0, &dev);
154 if (ret) {
155 debug("DRAM init failed: %d\n", ret);
156 return;
157 }
158
Heiko Stübnerba188bb2017-03-20 12:40:33 +0100159 setup_arm_clock();
Philipp Tomsich798370f2017-06-29 11:21:15 +0200160#if CONFIG_IS_ENABLED(ROCKCHIP_BACK_TO_BROM) && !defined(CONFIG_SPL_BOARD_INIT)
Heiko Stübner0b3c26a2017-02-18 19:46:38 +0100161 back_to_bootrom();
162#endif
163}
164
165static int setup_led(void)
166{
167#ifdef CONFIG_SPL_LED
168 struct udevice *dev;
169 char *led_name;
170 int ret;
171
172 led_name = fdtdec_get_config_string(gd->fdt_blob, "u-boot,boot-led");
173 if (!led_name)
174 return 0;
175 ret = led_get_by_label(led_name, &dev);
176 if (ret) {
177 debug("%s: get=%d\n", __func__, ret);
178 return ret;
179 }
180 ret = led_set_on(dev, 1);
181 if (ret)
182 return ret;
183#endif
184
185 return 0;
186}
187
188void spl_board_init(void)
189{
190 struct udevice *pinctrl;
191 int ret;
192
193 ret = setup_led();
194 if (ret) {
195 debug("LED ret=%d\n", ret);
196 hang();
197 }
198
199 ret = uclass_get_device(UCLASS_PINCTRL, 0, &pinctrl);
200 if (ret) {
201 debug("%s: Cannot find pinctrl device\n", __func__);
202 goto err;
203 }
204
205#ifdef CONFIG_SPL_MMC_SUPPORT
206 ret = pinctrl_request_noflags(pinctrl, PERIPH_ID_SDCARD);
207 if (ret) {
208 debug("%s: Failed to set up SD card\n", __func__);
209 goto err;
210 }
211#endif
212
213 /* Enable debug UART */
214 ret = pinctrl_request_noflags(pinctrl, PERIPH_ID_UART_DBG);
215 if (ret) {
216 debug("%s: Failed to set up console UART\n", __func__);
217 goto err;
218 }
219
220 preloader_console_init();
Philipp Tomsich798370f2017-06-29 11:21:15 +0200221#if CONFIG_IS_ENABLED(ROCKCHIP_BACK_TO_BROM)
Heiko Stübner0b3c26a2017-02-18 19:46:38 +0100222 back_to_bootrom();
223#endif
224 return;
225
226err:
227 printf("spl_board_init: Error %d\n", ret);
228
229 /* No way to report error here */
230 hang();
231}