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0d04f34a | 1 | /* |
46414296 | 2 | * (C) Copyright 2012-2013,2015 Stephen Warren |
0d04f34a | 3 | * |
a033171b | 4 | * SPDX-License-Identifier: GPL-2.0 |
0d04f34a SW |
5 | */ |
6 | ||
7 | #include <common.h> | |
ea697ae7 | 8 | #include <config.h> |
41e98e01 | 9 | #include <dm.h> |
5dfd162e | 10 | #include <fdt_support.h> |
033167c4 | 11 | #include <fdt_simplefb.h> |
ea697ae7 | 12 | #include <lcd.h> |
5dfd162e | 13 | #include <mmc.h> |
41e98e01 | 14 | #include <asm/gpio.h> |
3f397782 | 15 | #include <asm/arch/mbox.h> |
131a1e60 | 16 | #include <asm/arch/sdhci.h> |
0d04f34a | 17 | #include <asm/global_data.h> |
11506666 | 18 | #include <dm/platform_data/serial_pl01x.h> |
0d04f34a SW |
19 | |
20 | DECLARE_GLOBAL_DATA_PTR; | |
21 | ||
41e98e01 SG |
22 | static const struct bcm2835_gpio_platdata gpio_platdata = { |
23 | .base = BCM2835_GPIO_BASE, | |
24 | }; | |
25 | ||
26 | U_BOOT_DEVICE(bcm2835_gpios) = { | |
27 | .name = "gpio_bcm2835", | |
28 | .platdata = &gpio_platdata, | |
29 | }; | |
30 | ||
11506666 | 31 | static const struct pl01x_serial_platdata serial_platdata = { |
46414296 SW |
32 | #ifdef CONFIG_BCM2836 |
33 | .base = 0x3f201000, | |
34 | #else | |
11506666 | 35 | .base = 0x20201000, |
46414296 | 36 | #endif |
11506666 SG |
37 | .type = TYPE_PL011, |
38 | .clock = 3000000, | |
39 | }; | |
40 | ||
41 | U_BOOT_DEVICE(bcm2835_serials) = { | |
42 | .name = "serial_pl01x", | |
43 | .platdata = &serial_platdata, | |
44 | }; | |
45 | ||
3f397782 SW |
46 | struct msg_get_arm_mem { |
47 | struct bcm2835_mbox_hdr hdr; | |
48 | struct bcm2835_mbox_tag_get_arm_mem get_arm_mem; | |
49 | u32 end_tag; | |
50 | }; | |
51 | ||
6fe7845a SW |
52 | struct msg_get_board_rev { |
53 | struct bcm2835_mbox_hdr hdr; | |
54 | struct bcm2835_mbox_tag_get_board_rev get_board_rev; | |
55 | u32 end_tag; | |
56 | }; | |
57 | ||
4f80a06d SW |
58 | struct msg_get_mac_address { |
59 | struct bcm2835_mbox_hdr hdr; | |
60 | struct bcm2835_mbox_tag_get_mac_address get_mac_address; | |
61 | u32 end_tag; | |
62 | }; | |
63 | ||
f66f2aa2 SW |
64 | struct msg_set_power_state { |
65 | struct bcm2835_mbox_hdr hdr; | |
66 | struct bcm2835_mbox_tag_set_power_state set_power_state; | |
67 | u32 end_tag; | |
68 | }; | |
69 | ||
131a1e60 SW |
70 | struct msg_get_clock_rate { |
71 | struct bcm2835_mbox_hdr hdr; | |
72 | struct bcm2835_mbox_tag_get_clock_rate get_clock_rate; | |
73 | u32 end_tag; | |
74 | }; | |
75 | ||
6fe7845a SW |
76 | /* See comments in mbox.h for data source */ |
77 | static const struct { | |
78 | const char *name; | |
79 | const char *fdtfile; | |
3207d8fc | 80 | bool has_onboard_eth; |
6fe7845a | 81 | } models[] = { |
914627fe SW |
82 | [0] = { |
83 | "Unknown model", | |
46414296 SW |
84 | #ifdef CONFIG_BCM2836 |
85 | "bcm2836-rpi-other.dtb", | |
86 | #else | |
914627fe | 87 | "bcm2835-rpi-other.dtb", |
46414296 | 88 | #endif |
914627fe SW |
89 | false, |
90 | }, | |
46414296 SW |
91 | #ifdef CONFIG_BCM2836 |
92 | [BCM2836_BOARD_REV_2_B] = { | |
93 | "2 Model B", | |
94 | "bcm2836-rpi-2-b.dtb", | |
95 | true, | |
96 | }, | |
97 | #else | |
6fe7845a SW |
98 | [BCM2835_BOARD_REV_B_I2C0_2] = { |
99 | "Model B (no P5)", | |
100 | "bcm2835-rpi-b-i2c0.dtb", | |
3207d8fc | 101 | true, |
6fe7845a SW |
102 | }, |
103 | [BCM2835_BOARD_REV_B_I2C0_3] = { | |
104 | "Model B (no P5)", | |
105 | "bcm2835-rpi-b-i2c0.dtb", | |
3207d8fc | 106 | true, |
6fe7845a SW |
107 | }, |
108 | [BCM2835_BOARD_REV_B_I2C1_4] = { | |
109 | "Model B", | |
110 | "bcm2835-rpi-b.dtb", | |
3207d8fc | 111 | true, |
6fe7845a SW |
112 | }, |
113 | [BCM2835_BOARD_REV_B_I2C1_5] = { | |
114 | "Model B", | |
115 | "bcm2835-rpi-b.dtb", | |
3207d8fc | 116 | true, |
6fe7845a SW |
117 | }, |
118 | [BCM2835_BOARD_REV_B_I2C1_6] = { | |
119 | "Model B", | |
120 | "bcm2835-rpi-b.dtb", | |
3207d8fc | 121 | true, |
6fe7845a SW |
122 | }, |
123 | [BCM2835_BOARD_REV_A_7] = { | |
124 | "Model A", | |
125 | "bcm2835-rpi-a.dtb", | |
3207d8fc | 126 | false, |
6fe7845a SW |
127 | }, |
128 | [BCM2835_BOARD_REV_A_8] = { | |
129 | "Model A", | |
130 | "bcm2835-rpi-a.dtb", | |
3207d8fc | 131 | false, |
6fe7845a SW |
132 | }, |
133 | [BCM2835_BOARD_REV_A_9] = { | |
134 | "Model A", | |
135 | "bcm2835-rpi-a.dtb", | |
3207d8fc | 136 | false, |
6fe7845a SW |
137 | }, |
138 | [BCM2835_BOARD_REV_B_REV2_d] = { | |
139 | "Model B rev2", | |
140 | "bcm2835-rpi-b-rev2.dtb", | |
3207d8fc | 141 | true, |
6fe7845a SW |
142 | }, |
143 | [BCM2835_BOARD_REV_B_REV2_e] = { | |
144 | "Model B rev2", | |
145 | "bcm2835-rpi-b-rev2.dtb", | |
3207d8fc | 146 | true, |
6fe7845a SW |
147 | }, |
148 | [BCM2835_BOARD_REV_B_REV2_f] = { | |
149 | "Model B rev2", | |
150 | "bcm2835-rpi-b-rev2.dtb", | |
3207d8fc | 151 | true, |
6fe7845a SW |
152 | }, |
153 | [BCM2835_BOARD_REV_B_PLUS] = { | |
154 | "Model B+", | |
155 | "bcm2835-rpi-b-plus.dtb", | |
3207d8fc | 156 | true, |
6fe7845a SW |
157 | }, |
158 | [BCM2835_BOARD_REV_CM] = { | |
159 | "Compute Module", | |
160 | "bcm2835-rpi-cm.dtb", | |
3207d8fc | 161 | false, |
6fe7845a | 162 | }, |
47705eff SW |
163 | [BCM2835_BOARD_REV_A_PLUS] = { |
164 | "Model A+", | |
165 | "bcm2835-rpi-a-plus.dtb", | |
166 | false, | |
167 | }, | |
46414296 | 168 | #endif |
6fe7845a SW |
169 | }; |
170 | ||
171 | u32 rpi_board_rev = 0; | |
172 | ||
0d04f34a SW |
173 | int dram_init(void) |
174 | { | |
3f397782 SW |
175 | ALLOC_ALIGN_BUFFER(struct msg_get_arm_mem, msg, 1, 16); |
176 | int ret; | |
177 | ||
178 | BCM2835_MBOX_INIT_HDR(msg); | |
179 | BCM2835_MBOX_INIT_TAG(&msg->get_arm_mem, GET_ARM_MEMORY); | |
180 | ||
181 | ret = bcm2835_mbox_call_prop(BCM2835_MBOX_PROP_CHAN, &msg->hdr); | |
182 | if (ret) { | |
183 | printf("bcm2835: Could not query ARM memory size\n"); | |
184 | return -1; | |
185 | } | |
186 | ||
187 | gd->ram_size = msg->get_arm_mem.body.resp.mem_size; | |
0d04f34a SW |
188 | |
189 | return 0; | |
190 | } | |
191 | ||
6fe7845a SW |
192 | static void set_fdtfile(void) |
193 | { | |
194 | const char *fdtfile; | |
195 | ||
196 | if (getenv("fdtfile")) | |
197 | return; | |
198 | ||
199 | fdtfile = models[rpi_board_rev].fdtfile; | |
6fe7845a SW |
200 | setenv("fdtfile", fdtfile); |
201 | } | |
202 | ||
203 | static void set_usbethaddr(void) | |
4f80a06d SW |
204 | { |
205 | ALLOC_ALIGN_BUFFER(struct msg_get_mac_address, msg, 1, 16); | |
206 | int ret; | |
207 | ||
3207d8fc SW |
208 | if (!models[rpi_board_rev].has_onboard_eth) |
209 | return; | |
210 | ||
4f80a06d | 211 | if (getenv("usbethaddr")) |
6fe7845a | 212 | return; |
4f80a06d SW |
213 | |
214 | BCM2835_MBOX_INIT_HDR(msg); | |
215 | BCM2835_MBOX_INIT_TAG(&msg->get_mac_address, GET_MAC_ADDRESS); | |
216 | ||
217 | ret = bcm2835_mbox_call_prop(BCM2835_MBOX_PROP_CHAN, &msg->hdr); | |
218 | if (ret) { | |
219 | printf("bcm2835: Could not query MAC address\n"); | |
220 | /* Ignore error; not critical */ | |
6fe7845a | 221 | return; |
4f80a06d SW |
222 | } |
223 | ||
224 | eth_setenv_enetaddr("usbethaddr", msg->get_mac_address.body.resp.mac); | |
225 | ||
6fe7845a SW |
226 | return; |
227 | } | |
228 | ||
229 | int misc_init_r(void) | |
230 | { | |
231 | set_fdtfile(); | |
232 | set_usbethaddr(); | |
4f80a06d SW |
233 | return 0; |
234 | } | |
235 | ||
f66f2aa2 SW |
236 | static int power_on_module(u32 module) |
237 | { | |
238 | ALLOC_ALIGN_BUFFER(struct msg_set_power_state, msg_pwr, 1, 16); | |
239 | int ret; | |
240 | ||
241 | BCM2835_MBOX_INIT_HDR(msg_pwr); | |
242 | BCM2835_MBOX_INIT_TAG(&msg_pwr->set_power_state, | |
243 | SET_POWER_STATE); | |
244 | msg_pwr->set_power_state.body.req.device_id = module; | |
245 | msg_pwr->set_power_state.body.req.state = | |
246 | BCM2835_MBOX_SET_POWER_STATE_REQ_ON | | |
247 | BCM2835_MBOX_SET_POWER_STATE_REQ_WAIT; | |
248 | ||
249 | ret = bcm2835_mbox_call_prop(BCM2835_MBOX_PROP_CHAN, | |
250 | &msg_pwr->hdr); | |
251 | if (ret) { | |
252 | printf("bcm2835: Could not set module %u power state\n", | |
253 | module); | |
254 | return -1; | |
255 | } | |
256 | ||
257 | return 0; | |
258 | } | |
259 | ||
6fe7845a SW |
260 | static void get_board_rev(void) |
261 | { | |
262 | ALLOC_ALIGN_BUFFER(struct msg_get_board_rev, msg, 1, 16); | |
263 | int ret; | |
264 | const char *name; | |
265 | ||
266 | BCM2835_MBOX_INIT_HDR(msg); | |
267 | BCM2835_MBOX_INIT_TAG(&msg->get_board_rev, GET_BOARD_REV); | |
268 | ||
269 | ret = bcm2835_mbox_call_prop(BCM2835_MBOX_PROP_CHAN, &msg->hdr); | |
270 | if (ret) { | |
271 | printf("bcm2835: Could not query board revision\n"); | |
272 | /* Ignore error; not critical */ | |
273 | return; | |
274 | } | |
275 | ||
46414296 SW |
276 | /* |
277 | * For details of old-vs-new scheme, see: | |
278 | * https://github.com/pimoroni/RPi.version/blob/master/RPi/version.py | |
279 | * http://www.raspberrypi.org/forums/viewtopic.php?f=63&t=99293&p=690282 | |
280 | * (a few posts down) | |
95b4f112 SW |
281 | * |
282 | * For the RPi 1, bit 24 is the "warranty bit", so we mask off just the | |
283 | * lower byte to use as the board rev: | |
284 | * http://www.raspberrypi.org/forums/viewtopic.php?f=63&t=98367&start=250 | |
285 | * http://www.raspberrypi.org/forums/viewtopic.php?f=31&t=20594 | |
46414296 | 286 | */ |
6fe7845a | 287 | rpi_board_rev = msg->get_board_rev.body.resp.rev; |
46414296 SW |
288 | if (rpi_board_rev & 0x800000) |
289 | rpi_board_rev = (rpi_board_rev >> 4) & 0xff; | |
95b4f112 SW |
290 | else |
291 | rpi_board_rev &= 0xff; | |
47705eff SW |
292 | if (rpi_board_rev >= ARRAY_SIZE(models)) { |
293 | printf("RPI: Board rev %u outside known range\n", | |
294 | rpi_board_rev); | |
6fe7845a | 295 | rpi_board_rev = 0; |
47705eff | 296 | } |
914627fe | 297 | if (!models[rpi_board_rev].name) { |
47705eff | 298 | printf("RPI: Board rev %u unknown\n", rpi_board_rev); |
914627fe | 299 | rpi_board_rev = 0; |
47705eff | 300 | } |
914627fe SW |
301 | |
302 | name = models[rpi_board_rev].name; | |
46414296 | 303 | printf("RPI %s\n", name); |
6fe7845a SW |
304 | } |
305 | ||
0d04f34a SW |
306 | int board_init(void) |
307 | { | |
6fe7845a SW |
308 | get_board_rev(); |
309 | ||
0d04f34a SW |
310 | gd->bd->bi_boot_params = 0x100; |
311 | ||
f66f2aa2 | 312 | return power_on_module(BCM2835_MBOX_POWER_DEVID_USB_HCD); |
0d04f34a | 313 | } |
131a1e60 | 314 | |
5dfd162e | 315 | int board_mmc_init(bd_t *bis) |
131a1e60 SW |
316 | { |
317 | ALLOC_ALIGN_BUFFER(struct msg_get_clock_rate, msg_clk, 1, 16); | |
318 | int ret; | |
319 | ||
f66f2aa2 SW |
320 | power_on_module(BCM2835_MBOX_POWER_DEVID_SDHCI); |
321 | ||
131a1e60 SW |
322 | BCM2835_MBOX_INIT_HDR(msg_clk); |
323 | BCM2835_MBOX_INIT_TAG(&msg_clk->get_clock_rate, GET_CLOCK_RATE); | |
324 | msg_clk->get_clock_rate.body.req.clock_id = BCM2835_MBOX_CLOCK_ID_EMMC; | |
325 | ||
326 | ret = bcm2835_mbox_call_prop(BCM2835_MBOX_PROP_CHAN, &msg_clk->hdr); | |
327 | if (ret) { | |
328 | printf("bcm2835: Could not query eMMC clock rate\n"); | |
329 | return -1; | |
330 | } | |
331 | ||
332 | return bcm2835_sdhci_init(BCM2835_SDHCI_BASE, | |
333 | msg_clk->get_clock_rate.body.resp.rate_hz); | |
334 | } | |
ea697ae7 | 335 | |
e895a4b0 | 336 | int ft_board_setup(void *blob, bd_t *bd) |
ea697ae7 SW |
337 | { |
338 | /* | |
339 | * For now, we simply always add the simplefb DT node. Later, we | |
340 | * should be more intelligent, and e.g. only do this if no enabled DT | |
341 | * node exists for the "real" graphics driver. | |
342 | */ | |
343 | lcd_dt_simplefb_add_node(blob); | |
e895a4b0 SG |
344 | |
345 | return 0; | |
ea697ae7 | 346 | } |