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Commit | Line | Data |
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3f82b1d3 TW |
1 | /* |
2 | * (C) Copyright 2010,2011 | |
3 | * NVIDIA Corporation <www.nvidia.com> | |
4 | * | |
1a459660 | 5 | * SPDX-License-Identifier: GPL-2.0+ |
3f82b1d3 TW |
6 | */ |
7 | ||
8 | #include <common.h> | |
0521f984 | 9 | #include <dm.h> |
346451b5 | 10 | #include <errno.h> |
3f82b1d3 | 11 | #include <ns16550.h> |
c5b34a29 | 12 | #include <linux/compiler.h> |
bbc1b99e | 13 | #include <linux/sizes.h> |
3f82b1d3 | 14 | #include <asm/io.h> |
b4ba2be8 | 15 | #include <asm/arch/clock.h> |
6d6c0bae | 16 | #ifdef CONFIG_LCD |
1b24a50b | 17 | #include <asm/arch/display.h> |
6d6c0bae | 18 | #endif |
c0720afb | 19 | #include <asm/arch/funcmux.h> |
3f82b1d3 | 20 | #include <asm/arch/pinmux.h> |
8723626d | 21 | #include <asm/arch/pmu.h> |
6d6c0bae | 22 | #ifdef CONFIG_PWM_TEGRA |
e1ae0d1f | 23 | #include <asm/arch/pwm.h> |
6d6c0bae | 24 | #endif |
150c2493 | 25 | #include <asm/arch/tegra.h> |
73c38934 | 26 | #include <asm/arch-tegra/ap.h> |
150c2493 TW |
27 | #include <asm/arch-tegra/board.h> |
28 | #include <asm/arch-tegra/clk_rst.h> | |
29 | #include <asm/arch-tegra/pmc.h> | |
30 | #include <asm/arch-tegra/sys_proto.h> | |
31 | #include <asm/arch-tegra/uart.h> | |
32 | #include <asm/arch-tegra/warmboot.h> | |
871d78ed | 33 | #include <asm/arch-tegra/gpu.h> |
6d6c0bae TW |
34 | #ifdef CONFIG_TEGRA_CLOCK_SCALING |
35 | #include <asm/arch/emc.h> | |
36 | #endif | |
7ae18f37 | 37 | #include <asm/arch-tegra/usb.h> |
dd8204de | 38 | #ifdef CONFIG_USB_EHCI_TEGRA |
16297cfb | 39 | #include <usb.h> |
6d6c0bae | 40 | #endif |
c9aa831e | 41 | #ifdef CONFIG_TEGRA_MMC |
190be1f9 | 42 | #include <asm/arch-tegra/tegra_mmc.h> |
c9aa831e TW |
43 | #include <asm/arch-tegra/mmc.h> |
44 | #endif | |
79c7a90f | 45 | #include <asm/arch-tegra/xusb-padctl.h> |
346451b5 | 46 | #include <power/as3722.h> |
cb445fb4 | 47 | #include <i2c.h> |
6d6c0bae | 48 | #include <spi.h> |
c5b34a29 | 49 | #include "emc.h" |
3f82b1d3 TW |
50 | |
51 | DECLARE_GLOBAL_DATA_PTR; | |
52 | ||
0521f984 SG |
53 | #ifdef CONFIG_SPL_BUILD |
54 | /* TODO(sjg@chromium.org): Remove once SPL supports device tree */ | |
55 | U_BOOT_DEVICE(tegra_gpios) = { | |
56 | "gpio_tegra" | |
57 | }; | |
58 | #endif | |
59 | ||
19d7bf3d JH |
60 | __weak void pinmux_init(void) {} |
61 | __weak void pin_mux_usb(void) {} | |
62 | __weak void pin_mux_spi(void) {} | |
63 | __weak void gpio_early_init_uart(void) {} | |
64 | __weak void pin_mux_display(void) {} | |
66999892 | 65 | __weak void start_cpu_fan(void) {} |
0cd10c7a | 66 | |
dcd12518 | 67 | #if defined(CONFIG_TEGRA_NAND) |
19d7bf3d | 68 | __weak void pin_mux_nand(void) |
c0720afb LS |
69 | { |
70 | funcmux_select(PERIPH_ID_NDFLASH, FUNCMUX_DEFAULT); | |
71 | } | |
dcd12518 | 72 | #endif |
c0720afb | 73 | |
5aff021c WN |
74 | /* |
75 | * Routine: power_det_init | |
76 | * Description: turn off power detects | |
77 | */ | |
78 | static void power_det_init(void) | |
79 | { | |
00a2749d | 80 | #if defined(CONFIG_TEGRA20) |
29f3e3f2 | 81 | struct pmc_ctlr *const pmc = (struct pmc_ctlr *)NV_PA_PMC_BASE; |
5aff021c WN |
82 | |
83 | /* turn off power detects */ | |
84 | writel(0, &pmc->pmc_pwr_det_latch); | |
85 | writel(0, &pmc->pmc_pwr_det); | |
86 | #endif | |
87 | } | |
88 | ||
ec746644 SG |
89 | __weak int tegra_board_id(void) |
90 | { | |
91 | return -1; | |
92 | } | |
93 | ||
7d874132 SG |
94 | #ifdef CONFIG_DISPLAY_BOARDINFO |
95 | int checkboard(void) | |
96 | { | |
ec746644 SG |
97 | int board_id = tegra_board_id(); |
98 | ||
99 | printf("Board: %s", CONFIG_TEGRA_BOARD_STRING); | |
100 | if (board_id != -1) | |
101 | printf(", ID: %d\n", board_id); | |
102 | printf("\n"); | |
7d874132 SG |
103 | |
104 | return 0; | |
105 | } | |
106 | #endif /* CONFIG_DISPLAY_BOARDINFO */ | |
107 | ||
82776364 SG |
108 | __weak int tegra_lcd_pmic_init(int board_it) |
109 | { | |
110 | return 0; | |
111 | } | |
112 | ||
c96d709f SG |
113 | __weak int nvidia_board_init(void) |
114 | { | |
115 | return 0; | |
116 | } | |
117 | ||
3f82b1d3 TW |
118 | /* |
119 | * Routine: board_init | |
120 | * Description: Early hardware init. | |
121 | */ | |
122 | int board_init(void) | |
123 | { | |
c5b34a29 | 124 | __maybe_unused int err; |
82776364 | 125 | __maybe_unused int board_id; |
c5b34a29 | 126 | |
a04eba99 | 127 | /* Do clocks and UART first so that printf() works */ |
4ed59e70 SG |
128 | clock_init(); |
129 | clock_verify(); | |
130 | ||
eca676bd | 131 | tegra_gpu_config(); |
871d78ed | 132 | |
fda6fac3 | 133 | #ifdef CONFIG_TEGRA_SPI |
e0284948 | 134 | pin_mux_spi(); |
e1ae0d1f | 135 | #endif |
b19f5749 | 136 | |
e1ae0d1f SG |
137 | #ifdef CONFIG_PWM_TEGRA |
138 | if (pwm_init(gd->fdt_blob)) | |
139 | debug("%s: Failed to init pwm\n", __func__); | |
1b24a50b SG |
140 | #endif |
141 | #ifdef CONFIG_LCD | |
716d9439 | 142 | pin_mux_display(); |
1b24a50b | 143 | tegra_lcd_check_next_stage(gd->fdt_blob, 0); |
9112ef8d | 144 | #endif |
3f82b1d3 TW |
145 | /* boot param addr */ |
146 | gd->bd->bi_boot_params = (NV_PA_SDRAM_BASE + 0x100); | |
5aff021c WN |
147 | |
148 | power_det_init(); | |
149 | ||
1f2ba722 | 150 | #ifdef CONFIG_SYS_I2C_TEGRA |
8723626d SG |
151 | # ifdef CONFIG_TEGRA_PMU |
152 | if (pmu_set_nominal()) | |
153 | debug("Failed to select nominal voltages\n"); | |
c5b34a29 JZ |
154 | # ifdef CONFIG_TEGRA_CLOCK_SCALING |
155 | err = board_emc_init(); | |
156 | if (err) | |
157 | debug("Memory controller init failed: %d\n", err); | |
158 | # endif | |
159 | # endif /* CONFIG_TEGRA_PMU */ | |
346451b5 SG |
160 | #ifdef CONFIG_AS3722_POWER |
161 | err = as3722_init(NULL); | |
162 | if (err && err != -ENODEV) | |
163 | return err; | |
164 | #endif | |
1f2ba722 | 165 | #endif /* CONFIG_SYS_I2C_TEGRA */ |
3f82b1d3 | 166 | |
f10393e5 SG |
167 | #ifdef CONFIG_USB_EHCI_TEGRA |
168 | pin_mux_usb(); | |
f10393e5 | 169 | #endif |
16297cfb | 170 | |
1b24a50b | 171 | #ifdef CONFIG_LCD |
82776364 SG |
172 | board_id = tegra_board_id(); |
173 | err = tegra_lcd_pmic_init(board_id); | |
174 | if (err) | |
175 | return err; | |
1b24a50b SG |
176 | tegra_lcd_check_next_stage(gd->fdt_blob, 0); |
177 | #endif | |
f10393e5 | 178 | |
c0720afb LS |
179 | #ifdef CONFIG_TEGRA_NAND |
180 | pin_mux_nand(); | |
181 | #endif | |
182 | ||
79c7a90f TR |
183 | tegra_xusb_padctl_init(gd->fdt_blob); |
184 | ||
29f3e3f2 | 185 | #ifdef CONFIG_TEGRA_LP0 |
a49716aa AM |
186 | /* save Sdram params to PMC 2, 4, and 24 for WB0 */ |
187 | warmboot_save_sdram_params(); | |
188 | ||
67ac5797 SG |
189 | /* prepare the WB code to LP0 location */ |
190 | warmboot_prepare_code(TEGRA_LP0_ADDR, TEGRA_LP0_SIZE); | |
191 | #endif | |
c96d709f | 192 | return nvidia_board_init(); |
3f82b1d3 | 193 | } |
21ef6a10 | 194 | |
3e00dbdf | 195 | #ifdef CONFIG_BOARD_EARLY_INIT_F |
cb7a1cf3 TR |
196 | static void __gpio_early_init(void) |
197 | { | |
198 | } | |
199 | ||
200 | void gpio_early_init(void) __attribute__((weak, alias("__gpio_early_init"))); | |
201 | ||
3e00dbdf SG |
202 | int board_early_init_f(void) |
203 | { | |
dd8204de SW |
204 | #if defined(CONFIG_TEGRA_DISCONNECT_UDC_ON_BOOT) |
205 | #define USBCMD_FS2 (1 << 15) | |
206 | { | |
207 | struct usb_ctlr *usbctlr = (struct usb_ctlr *)0x7d000000; | |
208 | writel(USBCMD_FS2, &usbctlr->usb_cmd); | |
209 | } | |
210 | #endif | |
211 | ||
aa441877 TR |
212 | /* Do any special system timer/TSC setup */ |
213 | #if defined(CONFIG_TEGRA_SUPPORT_NON_SECURE) | |
214 | if (!tegra_cpu_is_non_secure()) | |
215 | #endif | |
216 | arch_timer_init(); | |
217 | ||
6d6c0bae | 218 | pinmux_init(); |
f46a9456 | 219 | board_init_uart_f(); |
3e00dbdf SG |
220 | |
221 | /* Initialize periph GPIOs */ | |
cb7a1cf3 | 222 | gpio_early_init(); |
a04eba99 | 223 | gpio_early_init_uart(); |
1b24a50b SG |
224 | #ifdef CONFIG_LCD |
225 | tegra_lcd_early_init(gd->fdt_blob); | |
226 | #endif | |
0cd10c7a | 227 | |
3e00dbdf SG |
228 | return 0; |
229 | } | |
230 | #endif /* EARLY_INIT */ | |
1b24a50b SG |
231 | |
232 | int board_late_init(void) | |
233 | { | |
234 | #ifdef CONFIG_LCD | |
235 | /* Make sure we finish initing the LCD */ | |
236 | tegra_lcd_check_next_stage(gd->fdt_blob, 1); | |
73c38934 SW |
237 | #endif |
238 | #if defined(CONFIG_TEGRA_SUPPORT_NON_SECURE) | |
239 | if (tegra_cpu_is_non_secure()) { | |
240 | printf("CPU is in NS mode\n"); | |
241 | setenv("cpu_ns_mode", "1"); | |
242 | } else { | |
243 | setenv("cpu_ns_mode", ""); | |
244 | } | |
1b24a50b | 245 | #endif |
66999892 TW |
246 | start_cpu_fan(); |
247 | ||
1b24a50b SG |
248 | return 0; |
249 | } | |
c9aa831e TW |
250 | |
251 | #if defined(CONFIG_TEGRA_MMC) | |
19d7bf3d | 252 | __weak void pin_mux_mmc(void) |
c9aa831e TW |
253 | { |
254 | } | |
255 | ||
c9aa831e TW |
256 | /* this is a weak define that we are overriding */ |
257 | int board_mmc_init(bd_t *bd) | |
258 | { | |
259 | debug("%s called\n", __func__); | |
260 | ||
261 | /* Enable muxes, etc. for SDMMC controllers */ | |
262 | pin_mux_mmc(); | |
263 | ||
264 | debug("%s: init MMC\n", __func__); | |
265 | tegra_mmc_init(); | |
266 | ||
267 | return 0; | |
268 | } | |
190be1f9 TW |
269 | |
270 | void pad_init_mmc(struct mmc_host *host) | |
271 | { | |
272 | #if defined(CONFIG_TEGRA30) | |
273 | enum periph_id id = host->mmc_id; | |
274 | u32 val; | |
275 | ||
276 | debug("%s: sdmmc address = %08x, id = %d\n", __func__, | |
277 | (unsigned int)host->reg, id); | |
278 | ||
279 | /* Set the pad drive strength for SDMMC1 or 3 only */ | |
280 | if (id != PERIPH_ID_SDMMC1 && id != PERIPH_ID_SDMMC3) { | |
281 | debug("%s: settings are only valid for SDMMC1/SDMMC3!\n", | |
282 | __func__); | |
283 | return; | |
284 | } | |
285 | ||
286 | val = readl(&host->reg->sdmemcmppadctl); | |
287 | val &= 0xFFFFFFF0; | |
288 | val |= MEMCOMP_PADCTRL_VREF; | |
289 | writel(val, &host->reg->sdmemcmppadctl); | |
290 | ||
291 | val = readl(&host->reg->autocalcfg); | |
292 | val &= 0xFFFF0000; | |
293 | val |= AUTO_CAL_PU_OFFSET | AUTO_CAL_PD_OFFSET | AUTO_CAL_ENABLED; | |
294 | writel(val, &host->reg->autocalcfg); | |
295 | #endif /* T30 */ | |
296 | } | |
297 | #endif /* MMC */ | |
00f782a9 | 298 | |
bbc1b99e SW |
299 | /* |
300 | * In some SW environments, a memory carve-out exists to house a secure | |
301 | * monitor, a trusted OS, and/or various statically allocated media buffers. | |
302 | * | |
303 | * This carveout exists at the highest possible address that is within a | |
304 | * 32-bit physical address space. | |
305 | * | |
306 | * This function returns the total size of this carve-out. At present, the | |
307 | * returned value is hard-coded for simplicity. In the future, it may be | |
308 | * possible to determine the carve-out size: | |
309 | * - By querying some run-time information source, such as: | |
310 | * - A structure passed to U-Boot by earlier boot software. | |
311 | * - SoC registers. | |
312 | * - A call into the secure monitor. | |
313 | * - In the per-board U-Boot configuration header, based on knowledge of the | |
314 | * SW environment that U-Boot is being built for. | |
315 | * | |
316 | * For now, we support two configurations in U-Boot: | |
317 | * - 32-bit ports without any form of carve-out. | |
318 | * - 64 bit ports which are assumed to use a carve-out of a conservatively | |
319 | * hard-coded size. | |
320 | */ | |
321 | static ulong carveout_size(void) | |
322 | { | |
00f782a9 | 323 | #ifdef CONFIG_ARM64 |
bbc1b99e SW |
324 | return SZ_512M; |
325 | #else | |
326 | return 0; | |
327 | #endif | |
328 | } | |
329 | ||
330 | /* | |
331 | * Determine the amount of usable RAM below 4GiB, taking into account any | |
332 | * carve-out that may be assigned. | |
333 | */ | |
334 | static ulong usable_ram_size_below_4g(void) | |
335 | { | |
336 | ulong total_size_below_4g; | |
337 | ulong usable_size_below_4g; | |
338 | ||
339 | /* | |
340 | * The total size of RAM below 4GiB is the lesser address of: | |
341 | * (a) 2GiB itself (RAM starts at 2GiB, and 4GiB - 2GiB == 2GiB). | |
342 | * (b) The size RAM physically present in the system. | |
343 | */ | |
344 | if (gd->ram_size < SZ_2G) | |
345 | total_size_below_4g = gd->ram_size; | |
346 | else | |
347 | total_size_below_4g = SZ_2G; | |
348 | ||
349 | /* Calculate usable RAM by subtracting out any carve-out size */ | |
350 | usable_size_below_4g = total_size_below_4g - carveout_size(); | |
351 | ||
352 | return usable_size_below_4g; | |
353 | } | |
354 | ||
355 | /* | |
356 | * Represent all available RAM in either one or two banks. | |
357 | * | |
358 | * The first bank describes any usable RAM below 4GiB. | |
359 | * The second bank describes any RAM above 4GiB. | |
360 | * | |
361 | * This split is driven by the following requirements: | |
362 | * - The NVIDIA L4T kernel requires separate entries in the DT /memory/reg | |
363 | * property for memory below and above the 4GiB boundary. The layout of that | |
364 | * DT property is directly driven by the entries in the U-Boot bank array. | |
365 | * - The potential existence of a carve-out at the end of RAM below 4GiB can | |
366 | * only be represented using multiple banks. | |
367 | * | |
368 | * Explicitly removing the carve-out RAM from the bank entries makes the RAM | |
369 | * layout a bit more obvious, e.g. when running "bdinfo" at the U-Boot | |
370 | * command-line. | |
371 | * | |
372 | * This does mean that the DT U-Boot passes to the Linux kernel will not | |
373 | * include this RAM in /memory/reg at all. An alternative would be to include | |
374 | * all RAM in the U-Boot banks (and hence DT), and add a /memreserve/ node | |
375 | * into DT to stop the kernel from using the RAM. IIUC, I don't /think/ the | |
376 | * Linux kernel will ever need to access any RAM in* the carve-out via a CPU | |
377 | * mapping, so either way is acceptable. | |
378 | * | |
379 | * On 32-bit systems, we never define a bank for RAM above 4GiB, since the | |
380 | * start address of that bank cannot be represented in the 32-bit .size | |
381 | * field. | |
382 | */ | |
383 | void dram_init_banksize(void) | |
384 | { | |
385 | gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE; | |
386 | gd->bd->bi_dram[0].size = usable_ram_size_below_4g(); | |
387 | ||
e81ca884 SG |
388 | #ifdef CONFIG_PCI |
389 | gd->pci_ram_top = gd->bd->bi_dram[0].start + gd->bd->bi_dram[0].size; | |
390 | #endif | |
391 | ||
bbc1b99e SW |
392 | #ifdef CONFIG_PHYS_64BIT |
393 | if (gd->ram_size > SZ_2G) { | |
394 | gd->bd->bi_dram[1].start = 0x100000000; | |
395 | gd->bd->bi_dram[1].size = gd->ram_size - SZ_2G; | |
396 | } else | |
397 | #endif | |
398 | { | |
399 | gd->bd->bi_dram[1].start = 0; | |
400 | gd->bd->bi_dram[1].size = 0; | |
401 | } | |
402 | } | |
403 | ||
00f782a9 TR |
404 | /* |
405 | * Most hardware on 64-bit Tegra is still restricted to DMA to the lower | |
406 | * 32-bits of the physical address space. Cap the maximum usable RAM area | |
407 | * at 4 GiB to avoid DMA buffers from being allocated beyond the 32-bit | |
bbc1b99e SW |
408 | * boundary that most devices can address. Also, don't let U-Boot use any |
409 | * carve-out, as mentioned above. | |
424afc0a | 410 | * |
bbc1b99e SW |
411 | * This function is called before dram_init_banksize(), so we can't simply |
412 | * return gd->bd->bi_dram[1].start + gd->bd->bi_dram[1].size. | |
00f782a9 TR |
413 | */ |
414 | ulong board_get_usable_ram_top(ulong total_size) | |
415 | { | |
bbc1b99e | 416 | return CONFIG_SYS_SDRAM_BASE + usable_ram_size_below_4g(); |
00f782a9 | 417 | } |
d6bf06c0 AC |
418 | |
419 | /* | |
420 | * This function is called right before the kernel is booted. "blob" is the | |
421 | * device tree that will be passed to the kernel. | |
422 | */ | |
423 | int ft_system_setup(void *blob, bd_t *bd) | |
424 | { | |
425 | const char *gpu_path = | |
426 | #if defined(CONFIG_TEGRA124) || defined(CONFIG_TEGRA210) | |
427 | "/gpu@0,57000000"; | |
428 | #else | |
429 | NULL; | |
430 | #endif | |
431 | ||
432 | /* Enable GPU node if GPU setup has been performed */ | |
433 | if (gpu_path != NULL) | |
eca676bd | 434 | return tegra_gpu_enable_node(blob, gpu_path); |
d6bf06c0 AC |
435 | |
436 | return 0; | |
437 | } |