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2444dae5 SG |
1 | /* |
2 | * (C) Copyright 2015 Google, Inc | |
3 | * | |
4 | * SPDX-License-Identifier: GPL-2.0+ | |
5 | */ | |
6 | ||
7 | #include <common.h> | |
8 | #include <debug_uart.h> | |
9 | #include <dm.h> | |
10 | #include <fdtdec.h> | |
bafcf2db | 11 | #include <i2c.h> |
2444dae5 SG |
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> | |
aade077e | 18 | #include <asm/arch/bootrom.h> |
2444dae5 SG |
19 | #include <asm/arch/clock.h> |
20 | #include <asm/arch/hardware.h> | |
21 | #include <asm/arch/periph.h> | |
22 | #include <asm/arch/sdram.h> | |
a982d515 | 23 | #include <asm/arch/sys_proto.h> |
cc2244b8 | 24 | #include <asm/arch/timer.h> |
2444dae5 SG |
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> | |
bafcf2db | 30 | #include <power/rk8xx_pmic.h> |
2444dae5 SG |
31 | |
32 | DECLARE_GLOBAL_DATA_PTR; | |
33 | ||
34 | u32 spl_boot_device(void) | |
35 | { | |
6afc4661 | 36 | #if !CONFIG_IS_ENABLED(OF_PLATDATA) |
2444dae5 SG |
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 | ||
70 | fallback: | |
e70408c0 | 71 | #elif defined(CONFIG_TARGET_CHROMEBOOK_JERRY) || \ |
c420ef67 SG |
72 | defined(CONFIG_TARGET_CHROMEBIT_MICKEY) || \ |
73 | defined(CONFIG_TARGET_CHROMEBOOK_MINNIE) | |
c8816d14 | 74 | return BOOT_DEVICE_SPI; |
6afc4661 | 75 | #endif |
2444dae5 SG |
76 | return BOOT_DEVICE_MMC1; |
77 | } | |
78 | ||
2b1cdafa | 79 | u32 spl_boot_mode(const u32 boot_device) |
2444dae5 SG |
80 | { |
81 | return MMCSD_MODE_RAW; | |
82 | } | |
83 | ||
f23cf909 | 84 | #ifdef CONFIG_SPL_MMC_SUPPORT |
2444dae5 SG |
85 | static int configure_emmc(struct udevice *pinctrl) |
86 | { | |
d7ca67b7 | 87 | #if defined(CONFIG_TARGET_CHROMEBOOK_JERRY) |
5051a77b | 88 | |
2444dae5 SG |
89 | struct gpio_desc desc; |
90 | int ret; | |
91 | ||
92 | pinctrl_request_noflags(pinctrl, PERIPH_ID_EMMC); | |
93 | ||
94 | /* | |
95 | * TODO(sjg@chromium.org): Pick this up from device tree or perhaps | |
96 | * use the EMMC_PWREN setting. | |
97 | */ | |
98 | ret = dm_gpio_lookup_name("D9", &desc); | |
99 | if (ret) { | |
100 | debug("gpio ret=%d\n", ret); | |
101 | return ret; | |
102 | } | |
103 | ret = dm_gpio_request(&desc, "emmc_pwren"); | |
104 | if (ret) { | |
105 | debug("gpio_request ret=%d\n", ret); | |
106 | return ret; | |
107 | } | |
108 | ret = dm_gpio_set_dir_flags(&desc, GPIOD_IS_OUT); | |
109 | if (ret) { | |
110 | debug("gpio dir ret=%d\n", ret); | |
111 | return ret; | |
112 | } | |
113 | ret = dm_gpio_set_value(&desc, 1); | |
114 | if (ret) { | |
115 | debug("gpio value ret=%d\n", ret); | |
116 | return ret; | |
117 | } | |
5051a77b | 118 | #endif |
2444dae5 SG |
119 | return 0; |
120 | } | |
f23cf909 | 121 | #endif |
aade077e | 122 | |
bafcf2db WE |
123 | #if !defined(CONFIG_SPL_OF_PLATDATA) |
124 | static int phycore_init(void) | |
125 | { | |
126 | struct udevice *pmic; | |
127 | int ret; | |
128 | ||
129 | ret = uclass_first_device_err(UCLASS_PMIC, &pmic); | |
130 | if (ret) | |
131 | return ret; | |
132 | ||
133 | #if defined(CONFIG_SPL_POWER_SUPPORT) | |
134 | /* Increase USB input current to 2A */ | |
135 | ret = rk818_spl_configure_usb_input_current(pmic, 2000); | |
136 | if (ret) | |
137 | return ret; | |
138 | ||
139 | /* Close charger when USB lower then 3.26V */ | |
140 | ret = rk818_spl_configure_usb_chrg_shutdown(pmic, 3260000); | |
141 | if (ret) | |
142 | return ret; | |
143 | #endif | |
144 | ||
145 | return 0; | |
146 | } | |
147 | #endif | |
148 | ||
2444dae5 SG |
149 | void board_init_f(ulong dummy) |
150 | { | |
151 | struct udevice *pinctrl; | |
152 | struct udevice *dev; | |
153 | int ret; | |
154 | ||
155 | /* Example code showing how to enable the debug UART on RK3288 */ | |
2444dae5 SG |
156 | #include <asm/arch/grf_rk3288.h> |
157 | /* Enable early UART on the RK3288 */ | |
158 | #define GRF_BASE 0xff770000 | |
159 | struct rk3288_grf * const grf = (void *)GRF_BASE; | |
160 | ||
161 | rk_clrsetreg(&grf->gpio7ch_iomux, GPIO7C7_MASK << GPIO7C7_SHIFT | | |
162 | GPIO7C6_MASK << GPIO7C6_SHIFT, | |
163 | GPIO7C7_UART2DBG_SOUT << GPIO7C7_SHIFT | | |
164 | GPIO7C6_UART2DBG_SIN << GPIO7C6_SHIFT); | |
165 | /* | |
166 | * Debug UART can be used from here if required: | |
167 | * | |
168 | * debug_uart_init(); | |
169 | * printch('a'); | |
170 | * printhex8(0x1234); | |
171 | * printascii("string"); | |
172 | */ | |
173 | debug_uart_init(); | |
7474bbe8 | 174 | debug("\nspl:debug uart enabled in %s\n", __func__); |
73976056 | 175 | ret = spl_early_init(); |
2444dae5 | 176 | if (ret) { |
73976056 | 177 | debug("spl_early_init() failed: %d\n", ret); |
2444dae5 SG |
178 | hang(); |
179 | } | |
180 | ||
cc2244b8 | 181 | rockchip_timer_init(); |
2444dae5 SG |
182 | configure_l2ctlr(); |
183 | ||
c3aad6f6 | 184 | ret = rockchip_get_clk(&dev); |
2444dae5 SG |
185 | if (ret) { |
186 | debug("CLK init failed: %d\n", ret); | |
187 | return; | |
188 | } | |
189 | ||
190 | ret = uclass_get_device(UCLASS_PINCTRL, 0, &pinctrl); | |
191 | if (ret) { | |
192 | debug("Pinctrl init failed: %d\n", ret); | |
193 | return; | |
194 | } | |
bafcf2db WE |
195 | |
196 | #if !defined(CONFIG_SPL_OF_PLATDATA) | |
197 | if (of_machine_is_compatible("phytec,rk3288-phycore-som")) { | |
198 | ret = phycore_init(); | |
199 | if (ret) { | |
200 | debug("Failed to set up phycore power settings: %d\n", | |
201 | ret); | |
202 | return; | |
203 | } | |
204 | } | |
205 | #endif | |
206 | ||
532cb7f5 | 207 | #if !defined(CONFIG_SUPPORT_TPL) |
7474bbe8 | 208 | debug("\nspl:init dram\n"); |
2444dae5 SG |
209 | ret = uclass_get_device(UCLASS_RAM, 0, &dev); |
210 | if (ret) { | |
211 | debug("DRAM init failed: %d\n", ret); | |
212 | return; | |
213 | } | |
532cb7f5 JT |
214 | #endif |
215 | ||
ee14d29d | 216 | #if CONFIG_IS_ENABLED(ROCKCHIP_BACK_TO_BROM) && !defined(CONFIG_SPL_BOARD_INIT) |
b47ea792 XZ |
217 | back_to_bootrom(); |
218 | #endif | |
2444dae5 SG |
219 | } |
220 | ||
221 | static int setup_led(void) | |
222 | { | |
223 | #ifdef CONFIG_SPL_LED | |
224 | struct udevice *dev; | |
225 | char *led_name; | |
226 | int ret; | |
227 | ||
228 | led_name = fdtdec_get_config_string(gd->fdt_blob, "u-boot,boot-led"); | |
229 | if (!led_name) | |
230 | return 0; | |
231 | ret = led_get_by_label(led_name, &dev); | |
232 | if (ret) { | |
233 | debug("%s: get=%d\n", __func__, ret); | |
234 | return ret; | |
235 | } | |
236 | ret = led_set_on(dev, 1); | |
237 | if (ret) | |
238 | return ret; | |
239 | #endif | |
240 | ||
241 | return 0; | |
242 | } | |
243 | ||
244 | void spl_board_init(void) | |
245 | { | |
246 | struct udevice *pinctrl; | |
247 | int ret; | |
248 | ||
249 | ret = setup_led(); | |
250 | ||
251 | if (ret) { | |
252 | debug("LED ret=%d\n", ret); | |
253 | hang(); | |
254 | } | |
255 | ||
256 | ret = uclass_get_device(UCLASS_PINCTRL, 0, &pinctrl); | |
257 | if (ret) { | |
258 | debug("%s: Cannot find pinctrl device\n", __func__); | |
259 | goto err; | |
260 | } | |
5051a77b | 261 | |
f23cf909 | 262 | #ifdef CONFIG_SPL_MMC_SUPPORT |
5051a77b | 263 | ret = pinctrl_request_noflags(pinctrl, PERIPH_ID_SDCARD); |
264 | if (ret) { | |
265 | debug("%s: Failed to set up SD card\n", __func__); | |
266 | goto err; | |
267 | } | |
268 | ret = configure_emmc(pinctrl); | |
269 | if (ret) { | |
270 | debug("%s: Failed to set up eMMC\n", __func__); | |
271 | goto err; | |
2444dae5 | 272 | } |
f23cf909 | 273 | #endif |
2444dae5 SG |
274 | |
275 | /* Enable debug UART */ | |
276 | ret = pinctrl_request_noflags(pinctrl, PERIPH_ID_UART_DBG); | |
277 | if (ret) { | |
278 | debug("%s: Failed to set up console UART\n", __func__); | |
279 | goto err; | |
280 | } | |
281 | ||
282 | preloader_console_init(); | |
ee14d29d | 283 | #if CONFIG_IS_ENABLED(ROCKCHIP_BACK_TO_BROM) |
427351dc SP |
284 | back_to_bootrom(); |
285 | #endif | |
2444dae5 SG |
286 | return; |
287 | err: | |
288 | printf("spl_board_init: Error %d\n", ret); | |
289 | ||
290 | /* No way to report error here */ | |
291 | hang(); | |
292 | } |