]>
Commit | Line | Data |
---|---|---|
b5220bc6 SG |
1 | /* |
2 | * Copyright (c) 2011 The Chromium OS Authors. | |
1a459660 | 3 | * SPDX-License-Identifier: GPL-2.0+ |
b5220bc6 SG |
4 | */ |
5 | ||
29a23f9d | 6 | #ifndef USE_HOSTCC |
b5220bc6 | 7 | #include <common.h> |
035d6402 | 8 | #include <boot_fit.h> |
fcc0a877 | 9 | #include <dm.h> |
035d6402 | 10 | #include <dm/of_extra.h> |
5c33c9fd | 11 | #include <errno.h> |
b5220bc6 | 12 | #include <fdtdec.h> |
035d6402 JJH |
13 | #include <fdt_support.h> |
14 | #include <libfdt.h> | |
15 | #include <serial.h> | |
b45122fd | 16 | #include <asm/sections.h> |
5c33c9fd | 17 | #include <linux/ctype.h> |
2f57c951 | 18 | #include <linux/lzo.h> |
b5220bc6 SG |
19 | |
20 | DECLARE_GLOBAL_DATA_PTR; | |
21 | ||
22 | /* | |
23 | * Here are the type we know about. One day we might allow drivers to | |
24 | * register. For now we just put them here. The COMPAT macro allows us to | |
25 | * turn this into a sparse list later, and keeps the ID with the name. | |
01a227df SG |
26 | * |
27 | * NOTE: This list is basically a TODO list for things that need to be | |
28 | * converted to driver model. So don't add new things here unless there is a | |
29 | * good reason why driver-model conversion is infeasible. Examples include | |
30 | * things which are used before driver model is available. | |
b5220bc6 SG |
31 | */ |
32 | #define COMPAT(id, name) name | |
33 | static const char * const compat_names[COMPAT_COUNT] = { | |
f88fe2de | 34 | COMPAT(UNKNOWN, "<none>"), |
0e35ad05 JZ |
35 | COMPAT(NVIDIA_TEGRA20_EMC, "nvidia,tegra20-emc"), |
36 | COMPAT(NVIDIA_TEGRA20_EMC_TABLE, "nvidia,tegra20-emc-table"), | |
312693c3 | 37 | COMPAT(NVIDIA_TEGRA20_NAND, "nvidia,tegra20-nand"), |
79c7a90f | 38 | COMPAT(NVIDIA_TEGRA124_XUSB_PADCTL, "nvidia,tegra124-xusb-padctl"), |
7aaa5a60 | 39 | COMPAT(NVIDIA_TEGRA210_XUSB_PADCTL, "nvidia,tegra210-xusb-padctl"), |
cc9fe33a HR |
40 | COMPAT(SMSC_LAN9215, "smsc,lan9215"), |
41 | COMPAT(SAMSUNG_EXYNOS5_SROMC, "samsung,exynos-sromc"), | |
c34253d1 | 42 | COMPAT(SAMSUNG_S3C2440_I2C, "samsung,s3c2440-i2c"), |
72dbff12 RS |
43 | COMPAT(SAMSUNG_EXYNOS5_SOUND, "samsung,exynos-sound"), |
44 | COMPAT(WOLFSON_WM8994_CODEC, "wolfson,wm8994-codec"), | |
6abd1620 | 45 | COMPAT(SAMSUNG_EXYNOS_USB_PHY, "samsung,exynos-usb-phy"), |
108b85be | 46 | COMPAT(SAMSUNG_EXYNOS5_USB3_PHY, "samsung,exynos5250-usb3-phy"), |
618766c0 | 47 | COMPAT(SAMSUNG_EXYNOS_TMU, "samsung,exynos-tmu"), |
de461c52 | 48 | COMPAT(SAMSUNG_EXYNOS_MIPI_DSI, "samsung,exynos-mipi-dsi"), |
7d3ca0f8 | 49 | COMPAT(SAMSUNG_EXYNOS_DWMMC, "samsung,exynos-dwmmc"), |
3577fe8b | 50 | COMPAT(SAMSUNG_EXYNOS_MMC, "samsung,exynos-mmc"), |
f37df0f8 | 51 | COMPAT(MAXIM_MAX77686_PMIC, "maxim,max77686"), |
bb8215f4 | 52 | COMPAT(GENERIC_SPI_FLASH, "spi-flash"), |
7772bb78 | 53 | COMPAT(MAXIM_98095_CODEC, "maxim,max98095-codec"), |
ecbd7e1e | 54 | COMPAT(SAMSUNG_EXYNOS5_I2C, "samsung,exynos5-hsi2c"), |
45c480c9 | 55 | COMPAT(SAMSUNG_EXYNOS_SYSMMU, "samsung,sysmmu-v3.3"), |
77f9b1fb | 56 | COMPAT(INTEL_MICROCODE, "intel,microcode"), |
6173c45b | 57 | COMPAT(AMS_AS3722, "ams,as3722"), |
c89ada01 | 58 | COMPAT(INTEL_QRK_MRC, "intel,quark-mrc"), |
6ab00db2 | 59 | COMPAT(ALTERA_SOCFPGA_DWMAC, "altr,socfpga-stmmac"), |
129adf5b | 60 | COMPAT(ALTERA_SOCFPGA_DWMMC, "altr,socfpga-dw-mshc"), |
ef4b01b2 | 61 | COMPAT(ALTERA_SOCFPGA_DWC2USB, "snps,dwc2"), |
39ea0ee9 SG |
62 | COMPAT(INTEL_BAYTRAIL_FSP, "intel,baytrail-fsp"), |
63 | COMPAT(INTEL_BAYTRAIL_FSP_MDP, "intel,baytrail-fsp-mdp"), | |
64 | COMPAT(INTEL_IVYBRIDGE_FSP, "intel,ivybridge-fsp"), | |
4ccae81c | 65 | COMPAT(COMPAT_SUNXI_NAND, "allwinner,sun4i-a10-nand"), |
e11b5e8d LFT |
66 | COMPAT(ALTERA_SOCFPGA_CLK, "altr,clk-mgr"), |
67 | COMPAT(ALTERA_SOCFPGA_PINCTRL_SINGLE, "pinctrl-single"), | |
68 | COMPAT(ALTERA_SOCFPGA_H2F_BRG, "altr,socfpga-hps2fpga-bridge"), | |
69 | COMPAT(ALTERA_SOCFPGA_LWH2F_BRG, "altr,socfpga-lwhps2fpga-bridge"), | |
70 | COMPAT(ALTERA_SOCFPGA_F2H_BRG, "altr,socfpga-fpga2hps-bridge"), | |
71 | COMPAT(ALTERA_SOCFPGA_F2SDR0, "altr,socfpga-fpga2sdram0-bridge"), | |
72 | COMPAT(ALTERA_SOCFPGA_F2SDR1, "altr,socfpga-fpga2sdram1-bridge"), | |
73 | COMPAT(ALTERA_SOCFPGA_F2SDR2, "altr,socfpga-fpga2sdram2-bridge"), | |
b5220bc6 SG |
74 | }; |
75 | ||
a53f4a29 SG |
76 | const char *fdtdec_get_compatible(enum fdt_compat_id id) |
77 | { | |
78 | /* We allow reading of the 'unknown' ID for testing purposes */ | |
79 | assert(id >= 0 && id < COMPAT_COUNT); | |
80 | return compat_names[id]; | |
81 | } | |
82 | ||
02464e38 SW |
83 | fdt_addr_t fdtdec_get_addr_size_fixed(const void *blob, int node, |
84 | const char *prop_name, int index, int na, int ns, | |
6e06acb7 | 85 | fdt_size_t *sizep, bool translate) |
b5220bc6 | 86 | { |
02464e38 SW |
87 | const fdt32_t *prop, *prop_end; |
88 | const fdt32_t *prop_addr, *prop_size, *prop_after_size; | |
236efe36 | 89 | int len; |
02464e38 | 90 | fdt_addr_t addr; |
b5220bc6 | 91 | |
1cb2323b | 92 | debug("%s: %s: ", __func__, prop_name); |
02464e38 SW |
93 | |
94 | if (na > (sizeof(fdt_addr_t) / sizeof(fdt32_t))) { | |
95 | debug("(na too large for fdt_addr_t type)\n"); | |
96 | return FDT_ADDR_T_NONE; | |
97 | } | |
98 | ||
99 | if (ns > (sizeof(fdt_size_t) / sizeof(fdt32_t))) { | |
100 | debug("(ns too large for fdt_size_t type)\n"); | |
101 | return FDT_ADDR_T_NONE; | |
102 | } | |
103 | ||
104 | prop = fdt_getprop(blob, node, prop_name, &len); | |
105 | if (!prop) { | |
106 | debug("(not found)\n"); | |
107 | return FDT_ADDR_T_NONE; | |
108 | } | |
109 | prop_end = prop + (len / sizeof(*prop)); | |
110 | ||
111 | prop_addr = prop + (index * (na + ns)); | |
112 | prop_size = prop_addr + na; | |
113 | prop_after_size = prop_size + ns; | |
114 | if (prop_after_size > prop_end) { | |
115 | debug("(not enough data: expected >= %d cells, got %d cells)\n", | |
116 | (u32)(prop_after_size - prop), ((u32)(prop_end - prop))); | |
117 | return FDT_ADDR_T_NONE; | |
118 | } | |
119 | ||
5efa1bfb | 120 | #if CONFIG_IS_ENABLED(OF_TRANSLATE) |
6e06acb7 SW |
121 | if (translate) |
122 | addr = fdt_translate_address(blob, node, prop_addr); | |
123 | else | |
124 | #endif | |
125 | addr = fdtdec_get_number(prop_addr, na); | |
02464e38 SW |
126 | |
127 | if (sizep) { | |
128 | *sizep = fdtdec_get_number(prop_size, ns); | |
fd30d2c6 SG |
129 | debug("addr=%08llx, size=%llx\n", (unsigned long long)addr, |
130 | (unsigned long long)*sizep); | |
02464e38 | 131 | } else { |
fd30d2c6 | 132 | debug("addr=%08llx\n", (unsigned long long)addr); |
02464e38 SW |
133 | } |
134 | ||
135 | return addr; | |
136 | } | |
137 | ||
138 | fdt_addr_t fdtdec_get_addr_size_auto_parent(const void *blob, int parent, | |
6e06acb7 SW |
139 | int node, const char *prop_name, int index, fdt_size_t *sizep, |
140 | bool translate) | |
02464e38 SW |
141 | { |
142 | int na, ns; | |
143 | ||
144 | debug("%s: ", __func__); | |
145 | ||
146 | na = fdt_address_cells(blob, parent); | |
147 | if (na < 1) { | |
148 | debug("(bad #address-cells)\n"); | |
149 | return FDT_ADDR_T_NONE; | |
150 | } | |
151 | ||
152 | ns = fdt_size_cells(blob, parent); | |
ff0a6358 | 153 | if (ns < 0) { |
02464e38 SW |
154 | debug("(bad #size-cells)\n"); |
155 | return FDT_ADDR_T_NONE; | |
156 | } | |
157 | ||
158 | debug("na=%d, ns=%d, ", na, ns); | |
159 | ||
160 | return fdtdec_get_addr_size_fixed(blob, node, prop_name, index, na, | |
6e06acb7 | 161 | ns, sizep, translate); |
02464e38 SW |
162 | } |
163 | ||
164 | fdt_addr_t fdtdec_get_addr_size_auto_noparent(const void *blob, int node, | |
6e06acb7 SW |
165 | const char *prop_name, int index, fdt_size_t *sizep, |
166 | bool translate) | |
02464e38 SW |
167 | { |
168 | int parent; | |
169 | ||
170 | debug("%s: ", __func__); | |
171 | ||
172 | parent = fdt_parent_offset(blob, node); | |
173 | if (parent < 0) { | |
174 | debug("(no parent found)\n"); | |
175 | return FDT_ADDR_T_NONE; | |
5b344360 | 176 | } |
02464e38 SW |
177 | |
178 | return fdtdec_get_addr_size_auto_parent(blob, parent, node, prop_name, | |
6e06acb7 | 179 | index, sizep, translate); |
02464e38 SW |
180 | } |
181 | ||
182 | fdt_addr_t fdtdec_get_addr_size(const void *blob, int node, | |
183 | const char *prop_name, fdt_size_t *sizep) | |
184 | { | |
d93b9a07 SW |
185 | int ns = sizep ? (sizeof(fdt_size_t) / sizeof(fdt32_t)) : 0; |
186 | ||
02464e38 SW |
187 | return fdtdec_get_addr_size_fixed(blob, node, prop_name, 0, |
188 | sizeof(fdt_addr_t) / sizeof(fdt32_t), | |
6e06acb7 | 189 | ns, sizep, false); |
b5220bc6 SG |
190 | } |
191 | ||
4397a2a8 SG |
192 | fdt_addr_t fdtdec_get_addr(const void *blob, int node, |
193 | const char *prop_name) | |
194 | { | |
195 | return fdtdec_get_addr_size(blob, node, prop_name, NULL); | |
196 | } | |
197 | ||
fcc0a877 | 198 | #if defined(CONFIG_PCI) && defined(CONFIG_DM_PCI) |
a62e84d7 BM |
199 | int fdtdec_get_pci_addr(const void *blob, int node, enum fdt_pci_space type, |
200 | const char *prop_name, struct fdt_pci_addr *addr) | |
201 | { | |
202 | const u32 *cell; | |
203 | int len; | |
204 | int ret = -ENOENT; | |
205 | ||
206 | debug("%s: %s: ", __func__, prop_name); | |
207 | ||
208 | /* | |
209 | * If we follow the pci bus bindings strictly, we should check | |
210 | * the value of the node's parent node's #address-cells and | |
211 | * #size-cells. They need to be 3 and 2 accordingly. However, | |
212 | * for simplicity we skip the check here. | |
213 | */ | |
214 | cell = fdt_getprop(blob, node, prop_name, &len); | |
215 | if (!cell) | |
216 | goto fail; | |
217 | ||
218 | if ((len % FDT_PCI_REG_SIZE) == 0) { | |
219 | int num = len / FDT_PCI_REG_SIZE; | |
220 | int i; | |
221 | ||
222 | for (i = 0; i < num; i++) { | |
223 | debug("pci address #%d: %08lx %08lx %08lx\n", i, | |
4ea5243a SW |
224 | (ulong)fdt32_to_cpu(cell[0]), |
225 | (ulong)fdt32_to_cpu(cell[1]), | |
226 | (ulong)fdt32_to_cpu(cell[2])); | |
227 | if ((fdt32_to_cpu(*cell) & type) == type) { | |
228 | addr->phys_hi = fdt32_to_cpu(cell[0]); | |
229 | addr->phys_mid = fdt32_to_cpu(cell[1]); | |
230 | addr->phys_lo = fdt32_to_cpu(cell[1]); | |
a62e84d7 BM |
231 | break; |
232 | } else { | |
233 | cell += (FDT_PCI_ADDR_CELLS + | |
234 | FDT_PCI_SIZE_CELLS); | |
235 | } | |
236 | } | |
237 | ||
106cce96 SG |
238 | if (i == num) { |
239 | ret = -ENXIO; | |
a62e84d7 | 240 | goto fail; |
106cce96 | 241 | } |
a62e84d7 BM |
242 | |
243 | return 0; | |
244 | } else { | |
245 | ret = -EINVAL; | |
246 | } | |
247 | ||
248 | fail: | |
249 | debug("(not found)\n"); | |
250 | return ret; | |
251 | } | |
252 | ||
253 | int fdtdec_get_pci_vendev(const void *blob, int node, u16 *vendor, u16 *device) | |
254 | { | |
255 | const char *list, *end; | |
256 | int len; | |
257 | ||
258 | list = fdt_getprop(blob, node, "compatible", &len); | |
259 | if (!list) | |
260 | return -ENOENT; | |
261 | ||
262 | end = list + len; | |
263 | while (list < end) { | |
264 | char *s; | |
265 | ||
266 | len = strlen(list); | |
267 | if (len >= strlen("pciVVVV,DDDD")) { | |
268 | s = strstr(list, "pci"); | |
269 | ||
270 | /* | |
271 | * check if the string is something like pciVVVV,DDDD.RR | |
272 | * or just pciVVVV,DDDD | |
273 | */ | |
274 | if (s && s[7] == ',' && | |
275 | (s[12] == '.' || s[12] == 0)) { | |
276 | s += 3; | |
277 | *vendor = simple_strtol(s, NULL, 16); | |
278 | ||
279 | s += 5; | |
280 | *device = simple_strtol(s, NULL, 16); | |
281 | ||
282 | return 0; | |
283 | } | |
a62e84d7 | 284 | } |
bc6351eb | 285 | list += (len + 1); |
a62e84d7 BM |
286 | } |
287 | ||
288 | return -ENOENT; | |
289 | } | |
290 | ||
fcc0a877 SG |
291 | int fdtdec_get_pci_bar32(struct udevice *dev, struct fdt_pci_addr *addr, |
292 | u32 *bar) | |
a62e84d7 | 293 | { |
a62e84d7 | 294 | int barnum; |
a62e84d7 BM |
295 | |
296 | /* extract the bar number from fdt_pci_addr */ | |
297 | barnum = addr->phys_hi & 0xff; | |
298 | if ((barnum < PCI_BASE_ADDRESS_0) || (barnum > PCI_CARDBUS_CIS)) | |
299 | return -EINVAL; | |
300 | ||
301 | barnum = (barnum - PCI_BASE_ADDRESS_0) / 4; | |
fcc0a877 | 302 | *bar = dm_pci_read_bar32(dev, barnum); |
a62e84d7 BM |
303 | |
304 | return 0; | |
305 | } | |
306 | #endif | |
307 | ||
aadef0a1 CLC |
308 | uint64_t fdtdec_get_uint64(const void *blob, int node, const char *prop_name, |
309 | uint64_t default_val) | |
310 | { | |
311 | const uint64_t *cell64; | |
312 | int length; | |
313 | ||
314 | cell64 = fdt_getprop(blob, node, prop_name, &length); | |
315 | if (!cell64 || length < sizeof(*cell64)) | |
316 | return default_val; | |
317 | ||
318 | return fdt64_to_cpu(*cell64); | |
319 | } | |
320 | ||
f88fe2de | 321 | int fdtdec_get_is_enabled(const void *blob, int node) |
b5220bc6 SG |
322 | { |
323 | const char *cell; | |
324 | ||
f88fe2de SG |
325 | /* |
326 | * It should say "okay", so only allow that. Some fdts use "ok" but | |
327 | * this is a bug. Please fix your device tree source file. See here | |
328 | * for discussion: | |
329 | * | |
330 | * http://www.mail-archive.com/u-boot@lists.denx.de/msg71598.html | |
331 | */ | |
b5220bc6 SG |
332 | cell = fdt_getprop(blob, node, "status", NULL); |
333 | if (cell) | |
f88fe2de SG |
334 | return 0 == strcmp(cell, "okay"); |
335 | return 1; | |
b5220bc6 SG |
336 | } |
337 | ||
7cde397b | 338 | enum fdt_compat_id fdtdec_lookup(const void *blob, int node) |
b5220bc6 SG |
339 | { |
340 | enum fdt_compat_id id; | |
341 | ||
342 | /* Search our drivers */ | |
343 | for (id = COMPAT_UNKNOWN; id < COMPAT_COUNT; id++) | |
344 | if (0 == fdt_node_check_compatible(blob, node, | |
345 | compat_names[id])) | |
346 | return id; | |
347 | return COMPAT_UNKNOWN; | |
348 | } | |
349 | ||
350 | int fdtdec_next_compatible(const void *blob, int node, | |
351 | enum fdt_compat_id id) | |
352 | { | |
353 | return fdt_node_offset_by_compatible(blob, node, compat_names[id]); | |
354 | } | |
355 | ||
3ddecfc7 SG |
356 | int fdtdec_next_compatible_subnode(const void *blob, int node, |
357 | enum fdt_compat_id id, int *depthp) | |
358 | { | |
359 | do { | |
360 | node = fdt_next_node(blob, node, depthp); | |
361 | } while (*depthp > 1); | |
362 | ||
363 | /* If this is a direct subnode, and compatible, return it */ | |
364 | if (*depthp == 1 && 0 == fdt_node_check_compatible( | |
365 | blob, node, compat_names[id])) | |
366 | return node; | |
367 | ||
368 | return -FDT_ERR_NOTFOUND; | |
369 | } | |
370 | ||
b5220bc6 SG |
371 | int fdtdec_next_alias(const void *blob, const char *name, |
372 | enum fdt_compat_id id, int *upto) | |
373 | { | |
374 | #define MAX_STR_LEN 20 | |
375 | char str[MAX_STR_LEN + 20]; | |
376 | int node, err; | |
377 | ||
378 | /* snprintf() is not available */ | |
379 | assert(strlen(name) < MAX_STR_LEN); | |
380 | sprintf(str, "%.*s%d", MAX_STR_LEN, name, *upto); | |
00878476 | 381 | node = fdt_path_offset(blob, str); |
b5220bc6 SG |
382 | if (node < 0) |
383 | return node; | |
384 | err = fdt_node_check_compatible(blob, node, compat_names[id]); | |
385 | if (err < 0) | |
386 | return err; | |
f88fe2de SG |
387 | if (err) |
388 | return -FDT_ERR_NOTFOUND; | |
389 | (*upto)++; | |
390 | return node; | |
b5220bc6 SG |
391 | } |
392 | ||
a53f4a29 SG |
393 | int fdtdec_find_aliases_for_id(const void *blob, const char *name, |
394 | enum fdt_compat_id id, int *node_list, int maxcount) | |
c6782270 SG |
395 | { |
396 | memset(node_list, '\0', sizeof(*node_list) * maxcount); | |
397 | ||
398 | return fdtdec_add_aliases_for_id(blob, name, id, node_list, maxcount); | |
399 | } | |
400 | ||
401 | /* TODO: Can we tighten this code up a little? */ | |
402 | int fdtdec_add_aliases_for_id(const void *blob, const char *name, | |
403 | enum fdt_compat_id id, int *node_list, int maxcount) | |
a53f4a29 SG |
404 | { |
405 | int name_len = strlen(name); | |
406 | int nodes[maxcount]; | |
407 | int num_found = 0; | |
408 | int offset, node; | |
409 | int alias_node; | |
410 | int count; | |
411 | int i, j; | |
412 | ||
413 | /* find the alias node if present */ | |
414 | alias_node = fdt_path_offset(blob, "/aliases"); | |
415 | ||
416 | /* | |
417 | * start with nothing, and we can assume that the root node can't | |
418 | * match | |
419 | */ | |
420 | memset(nodes, '\0', sizeof(nodes)); | |
421 | ||
422 | /* First find all the compatible nodes */ | |
423 | for (node = count = 0; node >= 0 && count < maxcount;) { | |
424 | node = fdtdec_next_compatible(blob, node, id); | |
425 | if (node >= 0) | |
426 | nodes[count++] = node; | |
427 | } | |
428 | if (node >= 0) | |
429 | debug("%s: warning: maxcount exceeded with alias '%s'\n", | |
430 | __func__, name); | |
431 | ||
432 | /* Now find all the aliases */ | |
a53f4a29 SG |
433 | for (offset = fdt_first_property_offset(blob, alias_node); |
434 | offset > 0; | |
435 | offset = fdt_next_property_offset(blob, offset)) { | |
436 | const struct fdt_property *prop; | |
437 | const char *path; | |
438 | int number; | |
439 | int found; | |
440 | ||
441 | node = 0; | |
442 | prop = fdt_get_property_by_offset(blob, offset, NULL); | |
443 | path = fdt_string(blob, fdt32_to_cpu(prop->nameoff)); | |
444 | if (prop->len && 0 == strncmp(path, name, name_len)) | |
445 | node = fdt_path_offset(blob, prop->data); | |
446 | if (node <= 0) | |
447 | continue; | |
448 | ||
449 | /* Get the alias number */ | |
450 | number = simple_strtoul(path + name_len, NULL, 10); | |
451 | if (number < 0 || number >= maxcount) { | |
452 | debug("%s: warning: alias '%s' is out of range\n", | |
453 | __func__, path); | |
454 | continue; | |
455 | } | |
456 | ||
457 | /* Make sure the node we found is actually in our list! */ | |
458 | found = -1; | |
459 | for (j = 0; j < count; j++) | |
460 | if (nodes[j] == node) { | |
461 | found = j; | |
462 | break; | |
463 | } | |
464 | ||
465 | if (found == -1) { | |
466 | debug("%s: warning: alias '%s' points to a node " | |
467 | "'%s' that is missing or is not compatible " | |
468 | " with '%s'\n", __func__, path, | |
469 | fdt_get_name(blob, node, NULL), | |
470 | compat_names[id]); | |
471 | continue; | |
472 | } | |
473 | ||
474 | /* | |
475 | * Add this node to our list in the right place, and mark | |
476 | * it as done. | |
477 | */ | |
478 | if (fdtdec_get_is_enabled(blob, node)) { | |
c6782270 SG |
479 | if (node_list[number]) { |
480 | debug("%s: warning: alias '%s' requires that " | |
481 | "a node be placed in the list in a " | |
482 | "position which is already filled by " | |
483 | "node '%s'\n", __func__, path, | |
484 | fdt_get_name(blob, node, NULL)); | |
485 | continue; | |
486 | } | |
a53f4a29 SG |
487 | node_list[number] = node; |
488 | if (number >= num_found) | |
489 | num_found = number + 1; | |
490 | } | |
c6782270 | 491 | nodes[found] = 0; |
a53f4a29 SG |
492 | } |
493 | ||
494 | /* Add any nodes not mentioned by an alias */ | |
495 | for (i = j = 0; i < maxcount; i++) { | |
496 | if (!node_list[i]) { | |
497 | for (; j < maxcount; j++) | |
498 | if (nodes[j] && | |
499 | fdtdec_get_is_enabled(blob, nodes[j])) | |
500 | break; | |
501 | ||
502 | /* Have we run out of nodes to add? */ | |
503 | if (j == maxcount) | |
504 | break; | |
505 | ||
506 | assert(!node_list[i]); | |
507 | node_list[i] = nodes[j++]; | |
508 | if (i >= num_found) | |
509 | num_found = i + 1; | |
510 | } | |
511 | } | |
512 | ||
513 | return num_found; | |
514 | } | |
515 | ||
5c33c9fd SG |
516 | int fdtdec_get_alias_seq(const void *blob, const char *base, int offset, |
517 | int *seqp) | |
518 | { | |
519 | int base_len = strlen(base); | |
520 | const char *find_name; | |
521 | int find_namelen; | |
522 | int prop_offset; | |
523 | int aliases; | |
524 | ||
525 | find_name = fdt_get_name(blob, offset, &find_namelen); | |
526 | debug("Looking for '%s' at %d, name %s\n", base, offset, find_name); | |
527 | ||
528 | aliases = fdt_path_offset(blob, "/aliases"); | |
529 | for (prop_offset = fdt_first_property_offset(blob, aliases); | |
530 | prop_offset > 0; | |
531 | prop_offset = fdt_next_property_offset(blob, prop_offset)) { | |
532 | const char *prop; | |
533 | const char *name; | |
534 | const char *slash; | |
c4af6732 | 535 | int len, val; |
5c33c9fd SG |
536 | |
537 | prop = fdt_getprop_by_offset(blob, prop_offset, &name, &len); | |
538 | debug(" - %s, %s\n", name, prop); | |
539 | if (len < find_namelen || *prop != '/' || prop[len - 1] || | |
540 | strncmp(name, base, base_len)) | |
541 | continue; | |
542 | ||
543 | slash = strrchr(prop, '/'); | |
544 | if (strcmp(slash + 1, find_name)) | |
545 | continue; | |
c4af6732 SG |
546 | val = trailing_strtol(name); |
547 | if (val != -1) { | |
548 | *seqp = val; | |
549 | debug("Found seq %d\n", *seqp); | |
550 | return 0; | |
5c33c9fd SG |
551 | } |
552 | } | |
553 | ||
554 | debug("Not found\n"); | |
555 | return -ENOENT; | |
556 | } | |
557 | ||
3bc37a50 | 558 | const char *fdtdec_get_chosen_prop(const void *blob, const char *name) |
aac07d49 | 559 | { |
aac07d49 | 560 | int chosen_node; |
aac07d49 SG |
561 | |
562 | if (!blob) | |
3bc37a50 | 563 | return NULL; |
aac07d49 | 564 | chosen_node = fdt_path_offset(blob, "/chosen"); |
3bc37a50 SG |
565 | return fdt_getprop(blob, chosen_node, name, NULL); |
566 | } | |
567 | ||
568 | int fdtdec_get_chosen_node(const void *blob, const char *name) | |
569 | { | |
570 | const char *prop; | |
571 | ||
572 | prop = fdtdec_get_chosen_prop(blob, name); | |
aac07d49 SG |
573 | if (!prop) |
574 | return -FDT_ERR_NOTFOUND; | |
575 | return fdt_path_offset(blob, prop); | |
576 | } | |
577 | ||
9a263e55 SG |
578 | int fdtdec_check_fdt(void) |
579 | { | |
580 | /* | |
581 | * We must have an FDT, but we cannot panic() yet since the console | |
582 | * is not ready. So for now, just assert(). Boards which need an early | |
583 | * FDT (prior to console ready) will need to make their own | |
584 | * arrangements and do their own checks. | |
585 | */ | |
586 | assert(!fdtdec_prepare_fdt()); | |
587 | return 0; | |
588 | } | |
589 | ||
b5220bc6 SG |
590 | /* |
591 | * This function is a little odd in that it accesses global data. At some | |
592 | * point if the architecture board.c files merge this will make more sense. | |
593 | * Even now, it is common code. | |
594 | */ | |
9a263e55 | 595 | int fdtdec_prepare_fdt(void) |
b5220bc6 | 596 | { |
c309c2da SG |
597 | if (!gd->fdt_blob || ((uintptr_t)gd->fdt_blob & 3) || |
598 | fdt_check_header(gd->fdt_blob)) { | |
66312374 SG |
599 | #ifdef CONFIG_SPL_BUILD |
600 | puts("Missing DTB\n"); | |
601 | #else | |
602 | puts("No valid device tree binary found - please append one to U-Boot binary, use u-boot-dtb.bin or define CONFIG_OF_EMBED. For sandbox, use -d <file.dtb>\n"); | |
cb5f97f7 SG |
603 | # ifdef DEBUG |
604 | if (gd->fdt_blob) { | |
605 | printf("fdt_blob=%p\n", gd->fdt_blob); | |
606 | print_buffer((ulong)gd->fdt_blob, gd->fdt_blob, 4, | |
607 | 32, 0); | |
608 | } | |
609 | # endif | |
66312374 | 610 | #endif |
9a263e55 SG |
611 | return -1; |
612 | } | |
b5220bc6 SG |
613 | return 0; |
614 | } | |
d17da655 SG |
615 | |
616 | int fdtdec_lookup_phandle(const void *blob, int node, const char *prop_name) | |
617 | { | |
618 | const u32 *phandle; | |
619 | int lookup; | |
620 | ||
1cb2323b | 621 | debug("%s: %s\n", __func__, prop_name); |
d17da655 SG |
622 | phandle = fdt_getprop(blob, node, prop_name, NULL); |
623 | if (!phandle) | |
624 | return -FDT_ERR_NOTFOUND; | |
625 | ||
626 | lookup = fdt_node_offset_by_phandle(blob, fdt32_to_cpu(*phandle)); | |
627 | return lookup; | |
628 | } | |
629 | ||
630 | /** | |
631 | * Look up a property in a node and check that it has a minimum length. | |
632 | * | |
633 | * @param blob FDT blob | |
634 | * @param node node to examine | |
635 | * @param prop_name name of property to find | |
636 | * @param min_len minimum property length in bytes | |
637 | * @param err 0 if ok, or -FDT_ERR_NOTFOUND if the property is not | |
638 | found, or -FDT_ERR_BADLAYOUT if not enough data | |
639 | * @return pointer to cell, which is only valid if err == 0 | |
640 | */ | |
641 | static const void *get_prop_check_min_len(const void *blob, int node, | |
642 | const char *prop_name, int min_len, int *err) | |
643 | { | |
644 | const void *cell; | |
645 | int len; | |
646 | ||
647 | debug("%s: %s\n", __func__, prop_name); | |
648 | cell = fdt_getprop(blob, node, prop_name, &len); | |
649 | if (!cell) | |
650 | *err = -FDT_ERR_NOTFOUND; | |
651 | else if (len < min_len) | |
652 | *err = -FDT_ERR_BADLAYOUT; | |
653 | else | |
654 | *err = 0; | |
655 | return cell; | |
656 | } | |
657 | ||
658 | int fdtdec_get_int_array(const void *blob, int node, const char *prop_name, | |
659 | u32 *array, int count) | |
660 | { | |
661 | const u32 *cell; | |
662 | int i, err = 0; | |
663 | ||
664 | debug("%s: %s\n", __func__, prop_name); | |
665 | cell = get_prop_check_min_len(blob, node, prop_name, | |
666 | sizeof(u32) * count, &err); | |
667 | if (!err) { | |
668 | for (i = 0; i < count; i++) | |
669 | array[i] = fdt32_to_cpu(cell[i]); | |
670 | } | |
671 | return err; | |
672 | } | |
673 | ||
a9f04d49 SG |
674 | int fdtdec_get_int_array_count(const void *blob, int node, |
675 | const char *prop_name, u32 *array, int count) | |
676 | { | |
677 | const u32 *cell; | |
678 | int len, elems; | |
679 | int i; | |
680 | ||
681 | debug("%s: %s\n", __func__, prop_name); | |
682 | cell = fdt_getprop(blob, node, prop_name, &len); | |
683 | if (!cell) | |
684 | return -FDT_ERR_NOTFOUND; | |
685 | elems = len / sizeof(u32); | |
686 | if (count > elems) | |
687 | count = elems; | |
688 | for (i = 0; i < count; i++) | |
689 | array[i] = fdt32_to_cpu(cell[i]); | |
690 | ||
691 | return count; | |
692 | } | |
693 | ||
96875e7d SG |
694 | const u32 *fdtdec_locate_array(const void *blob, int node, |
695 | const char *prop_name, int count) | |
696 | { | |
697 | const u32 *cell; | |
698 | int err; | |
699 | ||
700 | cell = get_prop_check_min_len(blob, node, prop_name, | |
701 | sizeof(u32) * count, &err); | |
702 | return err ? NULL : cell; | |
703 | } | |
704 | ||
d17da655 SG |
705 | int fdtdec_get_bool(const void *blob, int node, const char *prop_name) |
706 | { | |
707 | const s32 *cell; | |
708 | int len; | |
709 | ||
710 | debug("%s: %s\n", __func__, prop_name); | |
711 | cell = fdt_getprop(blob, node, prop_name, &len); | |
712 | return cell != NULL; | |
713 | } | |
ed3ee5cd | 714 | |
57068a7a SG |
715 | int fdtdec_parse_phandle_with_args(const void *blob, int src_node, |
716 | const char *list_name, | |
717 | const char *cells_name, | |
718 | int cell_count, int index, | |
719 | struct fdtdec_phandle_args *out_args) | |
720 | { | |
721 | const __be32 *list, *list_end; | |
722 | int rc = 0, size, cur_index = 0; | |
723 | uint32_t count = 0; | |
724 | int node = -1; | |
725 | int phandle; | |
726 | ||
727 | /* Retrieve the phandle list property */ | |
728 | list = fdt_getprop(blob, src_node, list_name, &size); | |
729 | if (!list) | |
730 | return -ENOENT; | |
731 | list_end = list + size / sizeof(*list); | |
732 | ||
733 | /* Loop over the phandles until all the requested entry is found */ | |
734 | while (list < list_end) { | |
735 | rc = -EINVAL; | |
736 | count = 0; | |
737 | ||
738 | /* | |
739 | * If phandle is 0, then it is an empty entry with no | |
740 | * arguments. Skip forward to the next entry. | |
741 | */ | |
742 | phandle = be32_to_cpup(list++); | |
743 | if (phandle) { | |
744 | /* | |
745 | * Find the provider node and parse the #*-cells | |
746 | * property to determine the argument length. | |
747 | * | |
748 | * This is not needed if the cell count is hard-coded | |
749 | * (i.e. cells_name not set, but cell_count is set), | |
750 | * except when we're going to return the found node | |
751 | * below. | |
752 | */ | |
753 | if (cells_name || cur_index == index) { | |
754 | node = fdt_node_offset_by_phandle(blob, | |
755 | phandle); | |
756 | if (!node) { | |
757 | debug("%s: could not find phandle\n", | |
758 | fdt_get_name(blob, src_node, | |
759 | NULL)); | |
760 | goto err; | |
761 | } | |
762 | } | |
763 | ||
764 | if (cells_name) { | |
765 | count = fdtdec_get_int(blob, node, cells_name, | |
766 | -1); | |
767 | if (count == -1) { | |
768 | debug("%s: could not get %s for %s\n", | |
769 | fdt_get_name(blob, src_node, | |
770 | NULL), | |
771 | cells_name, | |
772 | fdt_get_name(blob, node, | |
773 | NULL)); | |
774 | goto err; | |
775 | } | |
776 | } else { | |
777 | count = cell_count; | |
778 | } | |
779 | ||
780 | /* | |
781 | * Make sure that the arguments actually fit in the | |
782 | * remaining property data length | |
783 | */ | |
784 | if (list + count > list_end) { | |
785 | debug("%s: arguments longer than property\n", | |
786 | fdt_get_name(blob, src_node, NULL)); | |
787 | goto err; | |
788 | } | |
789 | } | |
790 | ||
791 | /* | |
792 | * All of the error cases above bail out of the loop, so at | |
793 | * this point, the parsing is successful. If the requested | |
794 | * index matches, then fill the out_args structure and return, | |
795 | * or return -ENOENT for an empty entry. | |
796 | */ | |
797 | rc = -ENOENT; | |
798 | if (cur_index == index) { | |
799 | if (!phandle) | |
800 | goto err; | |
801 | ||
802 | if (out_args) { | |
803 | int i; | |
804 | ||
805 | if (count > MAX_PHANDLE_ARGS) { | |
806 | debug("%s: too many arguments %d\n", | |
807 | fdt_get_name(blob, src_node, | |
808 | NULL), count); | |
809 | count = MAX_PHANDLE_ARGS; | |
810 | } | |
811 | out_args->node = node; | |
812 | out_args->args_count = count; | |
813 | for (i = 0; i < count; i++) { | |
814 | out_args->args[i] = | |
815 | be32_to_cpup(list++); | |
816 | } | |
817 | } | |
818 | ||
819 | /* Found it! return success */ | |
820 | return 0; | |
821 | } | |
822 | ||
823 | node = -1; | |
824 | list += count; | |
825 | cur_index++; | |
826 | } | |
827 | ||
828 | /* | |
829 | * Result will be one of: | |
830 | * -ENOENT : index is for empty phandle | |
831 | * -EINVAL : parsing error on data | |
832 | * [1..n] : Number of phandle (count mode; when index = -1) | |
833 | */ | |
834 | rc = index < 0 ? cur_index : -ENOENT; | |
835 | err: | |
836 | return rc; | |
837 | } | |
838 | ||
1889a7e2 PF |
839 | int fdtdec_get_child_count(const void *blob, int node) |
840 | { | |
841 | int subnode; | |
842 | int num = 0; | |
843 | ||
df87e6b1 | 844 | fdt_for_each_subnode(subnode, blob, node) |
1889a7e2 PF |
845 | num++; |
846 | ||
847 | return num; | |
848 | } | |
849 | ||
bed4d892 AS |
850 | int fdtdec_get_byte_array(const void *blob, int node, const char *prop_name, |
851 | u8 *array, int count) | |
852 | { | |
853 | const u8 *cell; | |
854 | int err; | |
855 | ||
856 | cell = get_prop_check_min_len(blob, node, prop_name, count, &err); | |
857 | if (!err) | |
858 | memcpy(array, cell, count); | |
859 | return err; | |
860 | } | |
861 | ||
862 | const u8 *fdtdec_locate_byte_array(const void *blob, int node, | |
863 | const char *prop_name, int count) | |
864 | { | |
865 | const u8 *cell; | |
866 | int err; | |
867 | ||
868 | cell = get_prop_check_min_len(blob, node, prop_name, count, &err); | |
869 | if (err) | |
870 | return NULL; | |
871 | return cell; | |
872 | } | |
09258f1e | 873 | |
09258f1e AK |
874 | int fdtdec_get_config_int(const void *blob, const char *prop_name, |
875 | int default_val) | |
876 | { | |
877 | int config_node; | |
878 | ||
879 | debug("%s: %s\n", __func__, prop_name); | |
880 | config_node = fdt_path_offset(blob, "/config"); | |
881 | if (config_node < 0) | |
882 | return default_val; | |
883 | return fdtdec_get_int(blob, config_node, prop_name, default_val); | |
884 | } | |
332ab0d5 | 885 | |
79289c0b GB |
886 | int fdtdec_get_config_bool(const void *blob, const char *prop_name) |
887 | { | |
888 | int config_node; | |
889 | const void *prop; | |
890 | ||
891 | debug("%s: %s\n", __func__, prop_name); | |
892 | config_node = fdt_path_offset(blob, "/config"); | |
893 | if (config_node < 0) | |
894 | return 0; | |
895 | prop = fdt_get_property(blob, config_node, prop_name, NULL); | |
896 | ||
897 | return prop != NULL; | |
898 | } | |
899 | ||
332ab0d5 SG |
900 | char *fdtdec_get_config_string(const void *blob, const char *prop_name) |
901 | { | |
902 | const char *nodep; | |
903 | int nodeoffset; | |
904 | int len; | |
905 | ||
906 | debug("%s: %s\n", __func__, prop_name); | |
907 | nodeoffset = fdt_path_offset(blob, "/config"); | |
908 | if (nodeoffset < 0) | |
909 | return NULL; | |
910 | ||
911 | nodep = fdt_getprop(blob, nodeoffset, prop_name, &len); | |
912 | if (!nodep) | |
913 | return NULL; | |
914 | ||
915 | return (char *)nodep; | |
916 | } | |
f20c4619 | 917 | |
76489832 SG |
918 | int fdtdec_decode_region(const void *blob, int node, const char *prop_name, |
919 | fdt_addr_t *basep, fdt_size_t *sizep) | |
f20c4619 SG |
920 | { |
921 | const fdt_addr_t *cell; | |
922 | int len; | |
923 | ||
76489832 SG |
924 | debug("%s: %s: %s\n", __func__, fdt_get_name(blob, node, NULL), |
925 | prop_name); | |
f20c4619 | 926 | cell = fdt_getprop(blob, node, prop_name, &len); |
76489832 SG |
927 | if (!cell || (len < sizeof(fdt_addr_t) * 2)) { |
928 | debug("cell=%p, len=%d\n", cell, len); | |
f20c4619 | 929 | return -1; |
76489832 SG |
930 | } |
931 | ||
932 | *basep = fdt_addr_to_cpu(*cell); | |
933 | *sizep = fdt_size_to_cpu(cell[1]); | |
934 | debug("%s: base=%08lx, size=%lx\n", __func__, (ulong)*basep, | |
935 | (ulong)*sizep); | |
f20c4619 | 936 | |
f20c4619 SG |
937 | return 0; |
938 | } | |
006e73b9 | 939 | |
5f7bfdd6 | 940 | u64 fdtdec_get_number(const fdt32_t *ptr, unsigned int cells) |
56f42242 TR |
941 | { |
942 | u64 number = 0; | |
943 | ||
944 | while (cells--) | |
945 | number = (number << 32) | fdt32_to_cpu(*ptr++); | |
946 | ||
947 | return number; | |
948 | } | |
949 | ||
950 | int fdt_get_resource(const void *fdt, int node, const char *property, | |
951 | unsigned int index, struct fdt_resource *res) | |
952 | { | |
953 | const fdt32_t *ptr, *end; | |
954 | int na, ns, len, parent; | |
955 | unsigned int i = 0; | |
956 | ||
957 | parent = fdt_parent_offset(fdt, node); | |
958 | if (parent < 0) | |
959 | return parent; | |
960 | ||
961 | na = fdt_address_cells(fdt, parent); | |
962 | ns = fdt_size_cells(fdt, parent); | |
963 | ||
964 | ptr = fdt_getprop(fdt, node, property, &len); | |
965 | if (!ptr) | |
966 | return len; | |
967 | ||
968 | end = ptr + len / sizeof(*ptr); | |
969 | ||
970 | while (ptr + na + ns <= end) { | |
971 | if (i == index) { | |
972 | res->start = res->end = fdtdec_get_number(ptr, na); | |
973 | res->end += fdtdec_get_number(&ptr[na], ns) - 1; | |
974 | return 0; | |
975 | } | |
976 | ||
977 | ptr += na + ns; | |
978 | i++; | |
979 | } | |
980 | ||
981 | return -FDT_ERR_NOTFOUND; | |
982 | } | |
983 | ||
984 | int fdt_get_named_resource(const void *fdt, int node, const char *property, | |
985 | const char *prop_names, const char *name, | |
986 | struct fdt_resource *res) | |
987 | { | |
988 | int index; | |
989 | ||
b02e4044 | 990 | index = fdt_stringlist_search(fdt, node, prop_names, name); |
56f42242 TR |
991 | if (index < 0) |
992 | return index; | |
993 | ||
994 | return fdt_get_resource(fdt, node, property, index, res); | |
995 | } | |
9f85eee7 | 996 | |
26403871 SG |
997 | int fdtdec_decode_memory_region(const void *blob, int config_node, |
998 | const char *mem_type, const char *suffix, | |
999 | fdt_addr_t *basep, fdt_size_t *sizep) | |
1000 | { | |
1001 | char prop_name[50]; | |
1002 | const char *mem; | |
1003 | fdt_size_t size, offset_size; | |
1004 | fdt_addr_t base, offset; | |
1005 | int node; | |
1006 | ||
1007 | if (config_node == -1) { | |
1008 | config_node = fdt_path_offset(blob, "/config"); | |
1009 | if (config_node < 0) { | |
1010 | debug("%s: Cannot find /config node\n", __func__); | |
1011 | return -ENOENT; | |
1012 | } | |
1013 | } | |
1014 | if (!suffix) | |
1015 | suffix = ""; | |
1016 | ||
1017 | snprintf(prop_name, sizeof(prop_name), "%s-memory%s", mem_type, | |
1018 | suffix); | |
1019 | mem = fdt_getprop(blob, config_node, prop_name, NULL); | |
1020 | if (!mem) { | |
1021 | debug("%s: No memory type for '%s', using /memory\n", __func__, | |
1022 | prop_name); | |
1023 | mem = "/memory"; | |
1024 | } | |
1025 | ||
1026 | node = fdt_path_offset(blob, mem); | |
1027 | if (node < 0) { | |
1028 | debug("%s: Failed to find node '%s': %s\n", __func__, mem, | |
1029 | fdt_strerror(node)); | |
1030 | return -ENOENT; | |
1031 | } | |
1032 | ||
1033 | /* | |
1034 | * Not strictly correct - the memory may have multiple banks. We just | |
1035 | * use the first | |
1036 | */ | |
1037 | if (fdtdec_decode_region(blob, node, "reg", &base, &size)) { | |
1038 | debug("%s: Failed to decode memory region %s\n", __func__, | |
1039 | mem); | |
1040 | return -EINVAL; | |
1041 | } | |
1042 | ||
1043 | snprintf(prop_name, sizeof(prop_name), "%s-offset%s", mem_type, | |
1044 | suffix); | |
1045 | if (fdtdec_decode_region(blob, config_node, prop_name, &offset, | |
1046 | &offset_size)) { | |
1047 | debug("%s: Failed to decode memory region '%s'\n", __func__, | |
1048 | prop_name); | |
1049 | return -EINVAL; | |
1050 | } | |
1051 | ||
1052 | *basep = base + offset; | |
1053 | *sizep = offset_size; | |
1054 | ||
1055 | return 0; | |
1056 | } | |
b45122fd | 1057 | |
12e67114 SG |
1058 | static int decode_timing_property(const void *blob, int node, const char *name, |
1059 | struct timing_entry *result) | |
1060 | { | |
1061 | int length, ret = 0; | |
1062 | const u32 *prop; | |
1063 | ||
1064 | prop = fdt_getprop(blob, node, name, &length); | |
1065 | if (!prop) { | |
1066 | debug("%s: could not find property %s\n", | |
1067 | fdt_get_name(blob, node, NULL), name); | |
1068 | return length; | |
1069 | } | |
1070 | ||
1071 | if (length == sizeof(u32)) { | |
1072 | result->typ = fdtdec_get_int(blob, node, name, 0); | |
1073 | result->min = result->typ; | |
1074 | result->max = result->typ; | |
1075 | } else { | |
1076 | ret = fdtdec_get_int_array(blob, node, name, &result->min, 3); | |
1077 | } | |
1078 | ||
1079 | return ret; | |
1080 | } | |
1081 | ||
1082 | int fdtdec_decode_display_timing(const void *blob, int parent, int index, | |
1083 | struct display_timing *dt) | |
1084 | { | |
1085 | int i, node, timings_node; | |
1086 | u32 val = 0; | |
1087 | int ret = 0; | |
1088 | ||
1089 | timings_node = fdt_subnode_offset(blob, parent, "display-timings"); | |
1090 | if (timings_node < 0) | |
1091 | return timings_node; | |
1092 | ||
1093 | for (i = 0, node = fdt_first_subnode(blob, timings_node); | |
1094 | node > 0 && i != index; | |
1095 | node = fdt_next_subnode(blob, node)) | |
1096 | i++; | |
1097 | ||
1098 | if (node < 0) | |
1099 | return node; | |
1100 | ||
1101 | memset(dt, 0, sizeof(*dt)); | |
1102 | ||
1103 | ret |= decode_timing_property(blob, node, "hback-porch", | |
1104 | &dt->hback_porch); | |
1105 | ret |= decode_timing_property(blob, node, "hfront-porch", | |
1106 | &dt->hfront_porch); | |
1107 | ret |= decode_timing_property(blob, node, "hactive", &dt->hactive); | |
1108 | ret |= decode_timing_property(blob, node, "hsync-len", &dt->hsync_len); | |
1109 | ret |= decode_timing_property(blob, node, "vback-porch", | |
1110 | &dt->vback_porch); | |
1111 | ret |= decode_timing_property(blob, node, "vfront-porch", | |
1112 | &dt->vfront_porch); | |
1113 | ret |= decode_timing_property(blob, node, "vactive", &dt->vactive); | |
1114 | ret |= decode_timing_property(blob, node, "vsync-len", &dt->vsync_len); | |
1115 | ret |= decode_timing_property(blob, node, "clock-frequency", | |
1116 | &dt->pixelclock); | |
1117 | ||
1118 | dt->flags = 0; | |
1119 | val = fdtdec_get_int(blob, node, "vsync-active", -1); | |
1120 | if (val != -1) { | |
1121 | dt->flags |= val ? DISPLAY_FLAGS_VSYNC_HIGH : | |
1122 | DISPLAY_FLAGS_VSYNC_LOW; | |
1123 | } | |
1124 | val = fdtdec_get_int(blob, node, "hsync-active", -1); | |
1125 | if (val != -1) { | |
1126 | dt->flags |= val ? DISPLAY_FLAGS_HSYNC_HIGH : | |
1127 | DISPLAY_FLAGS_HSYNC_LOW; | |
1128 | } | |
1129 | val = fdtdec_get_int(blob, node, "de-active", -1); | |
1130 | if (val != -1) { | |
1131 | dt->flags |= val ? DISPLAY_FLAGS_DE_HIGH : | |
1132 | DISPLAY_FLAGS_DE_LOW; | |
1133 | } | |
1134 | val = fdtdec_get_int(blob, node, "pixelclk-active", -1); | |
1135 | if (val != -1) { | |
1136 | dt->flags |= val ? DISPLAY_FLAGS_PIXDATA_POSEDGE : | |
1137 | DISPLAY_FLAGS_PIXDATA_NEGEDGE; | |
1138 | } | |
1139 | ||
1140 | if (fdtdec_get_bool(blob, node, "interlaced")) | |
1141 | dt->flags |= DISPLAY_FLAGS_INTERLACED; | |
1142 | if (fdtdec_get_bool(blob, node, "doublescan")) | |
1143 | dt->flags |= DISPLAY_FLAGS_DOUBLESCAN; | |
1144 | if (fdtdec_get_bool(blob, node, "doubleclk")) | |
1145 | dt->flags |= DISPLAY_FLAGS_DOUBLECLK; | |
1146 | ||
04b9dd10 | 1147 | return ret; |
12e67114 SG |
1148 | } |
1149 | ||
623f6019 NR |
1150 | int fdtdec_setup_memory_size(void) |
1151 | { | |
1152 | int ret, mem; | |
1153 | struct fdt_resource res; | |
1154 | ||
1155 | mem = fdt_path_offset(gd->fdt_blob, "/memory"); | |
1156 | if (mem < 0) { | |
1157 | debug("%s: Missing /memory node\n", __func__); | |
1158 | return -EINVAL; | |
1159 | } | |
1160 | ||
1161 | ret = fdt_get_resource(gd->fdt_blob, mem, "reg", 0, &res); | |
1162 | if (ret != 0) { | |
1163 | debug("%s: Unable to decode first memory bank\n", __func__); | |
1164 | return -EINVAL; | |
1165 | } | |
1166 | ||
1167 | gd->ram_size = (phys_size_t)(res.end - res.start + 1); | |
c69380f8 SG |
1168 | debug("%s: Initial DRAM size %llx\n", __func__, |
1169 | (unsigned long long)gd->ram_size); | |
623f6019 NR |
1170 | |
1171 | return 0; | |
1172 | } | |
1173 | ||
1174 | #if defined(CONFIG_NR_DRAM_BANKS) | |
1175 | int fdtdec_setup_memory_banksize(void) | |
1176 | { | |
1177 | int bank, ret, mem; | |
1178 | struct fdt_resource res; | |
1179 | ||
1180 | mem = fdt_path_offset(gd->fdt_blob, "/memory"); | |
1181 | if (mem < 0) { | |
1182 | debug("%s: Missing /memory node\n", __func__); | |
1183 | return -EINVAL; | |
1184 | } | |
1185 | ||
1186 | for (bank = 0; bank < CONFIG_NR_DRAM_BANKS; bank++) { | |
1187 | ret = fdt_get_resource(gd->fdt_blob, mem, "reg", bank, &res); | |
1188 | if (ret == -FDT_ERR_NOTFOUND) | |
1189 | break; | |
1190 | if (ret != 0) | |
1191 | return -EINVAL; | |
1192 | ||
1193 | gd->bd->bi_dram[bank].start = (phys_addr_t)res.start; | |
1194 | gd->bd->bi_dram[bank].size = | |
1195 | (phys_size_t)(res.end - res.start + 1); | |
1196 | ||
1197 | debug("%s: DRAM Bank #%d: start = 0x%llx, size = 0x%llx\n", | |
1198 | __func__, bank, | |
1199 | (unsigned long long)gd->bd->bi_dram[bank].start, | |
1200 | (unsigned long long)gd->bd->bi_dram[bank].size); | |
1201 | } | |
1202 | ||
1203 | return 0; | |
1204 | } | |
1205 | #endif | |
1206 | ||
2f57c951 JJH |
1207 | #if CONFIG_IS_ENABLED(MULTI_DTB_FIT) |
1208 | # if CONFIG_IS_ENABLED(MULTI_DTB_FIT_GZIP) ||\ | |
1209 | CONFIG_IS_ENABLED(MULTI_DTB_FIT_LZO) | |
1210 | static int uncompress_blob(const void *src, ulong sz_src, void **dstp) | |
1211 | { | |
1212 | size_t sz_out = CONFIG_SPL_MULTI_DTB_FIT_UNCOMPRESS_SZ; | |
1213 | ulong sz_in = sz_src; | |
1214 | void *dst; | |
1215 | int rc; | |
1216 | ||
1217 | if (CONFIG_IS_ENABLED(GZIP)) | |
1218 | if (gzip_parse_header(src, sz_in) < 0) | |
1219 | return -1; | |
1220 | if (CONFIG_IS_ENABLED(LZO)) | |
1221 | if (!lzop_is_valid_header(src)) | |
1222 | return -EBADMSG; | |
1223 | ||
1224 | if (CONFIG_IS_ENABLED(MULTI_DTB_FIT_DYN_ALLOC)) { | |
1225 | dst = malloc(sz_out); | |
1226 | if (!dst) { | |
1227 | puts("uncompress_blob: Unable to allocate memory\n"); | |
1228 | return -ENOMEM; | |
1229 | } | |
1230 | } else { | |
1231 | # if CONFIG_IS_ENABLED(MULTI_DTB_FIT_USER_DEFINED_AREA) | |
1232 | dst = (void *)CONFIG_VAL(MULTI_DTB_FIT_USER_DEF_ADDR); | |
1233 | # else | |
1234 | return -ENOTSUPP; | |
1235 | # endif | |
1236 | } | |
1237 | ||
1238 | if (CONFIG_IS_ENABLED(GZIP)) | |
1239 | rc = gunzip(dst, sz_out, (u8 *)src, &sz_in); | |
1240 | else if (CONFIG_IS_ENABLED(LZO)) | |
1241 | rc = lzop_decompress(src, sz_in, dst, &sz_out); | |
1242 | ||
1243 | if (rc < 0) { | |
1244 | /* not a valid compressed blob */ | |
1245 | puts("uncompress_blob: Unable to uncompress\n"); | |
1246 | if (CONFIG_IS_ENABLED(MULTI_DTB_FIT_DYN_ALLOC)) | |
1247 | free(dst); | |
1248 | return -EBADMSG; | |
1249 | } | |
1250 | *dstp = dst; | |
1251 | return 0; | |
1252 | } | |
1253 | # else | |
1254 | static int uncompress_blob(const void *src, ulong sz_src, void **dstp) | |
1255 | { | |
1256 | return -ENOTSUPP; | |
1257 | } | |
1258 | # endif | |
1259 | #endif | |
1260 | ||
0879361f | 1261 | int fdtdec_setup(void) |
b45122fd | 1262 | { |
0f925822 | 1263 | #if CONFIG_IS_ENABLED(OF_CONTROL) |
2f57c951 JJH |
1264 | # if CONFIG_IS_ENABLED(MULTI_DTB_FIT) |
1265 | void *fdt_blob; | |
1266 | # endif | |
b45122fd SG |
1267 | # ifdef CONFIG_OF_EMBED |
1268 | /* Get a pointer to the FDT */ | |
1269 | gd->fdt_blob = __dtb_dt_begin; | |
1270 | # elif defined CONFIG_OF_SEPARATE | |
1271 | # ifdef CONFIG_SPL_BUILD | |
10172962 SG |
1272 | /* FDT is at end of BSS unless it is in a different memory region */ |
1273 | if (IS_ENABLED(CONFIG_SPL_SEPARATE_BSS)) | |
1274 | gd->fdt_blob = (ulong *)&_image_binary_end; | |
1275 | else | |
1276 | gd->fdt_blob = (ulong *)&__bss_end; | |
b45122fd SG |
1277 | # else |
1278 | /* FDT is at end of image */ | |
1279 | gd->fdt_blob = (ulong *)&_end; | |
3bd926cc | 1280 | # endif |
82f766d1 AD |
1281 | # elif defined(CONFIG_OF_BOARD) |
1282 | /* Allow the board to override the fdt address. */ | |
1283 | gd->fdt_blob = board_fdt_blob_setup(); | |
b45122fd SG |
1284 | # elif defined(CONFIG_OF_HOSTFILE) |
1285 | if (sandbox_read_fdt_from_file()) { | |
1286 | puts("Failed to read control FDT\n"); | |
1287 | return -1; | |
1288 | } | |
1289 | # endif | |
1290 | # ifndef CONFIG_SPL_BUILD | |
1291 | /* Allow the early environment to override the fdt address */ | |
bfebc8c9 | 1292 | gd->fdt_blob = (void *)env_get_ulong("fdtcontroladdr", 16, |
b45122fd SG |
1293 | (uintptr_t)gd->fdt_blob); |
1294 | # endif | |
2f57c951 JJH |
1295 | |
1296 | # if CONFIG_IS_ENABLED(MULTI_DTB_FIT) | |
1297 | /* | |
1298 | * Try and uncompress the blob. | |
1299 | * Unfortunately there is no way to know how big the input blob really | |
1300 | * is. So let us set the maximum input size arbitrarily high. 16MB | |
1301 | * ought to be more than enough for packed DTBs. | |
1302 | */ | |
1303 | if (uncompress_blob(gd->fdt_blob, 0x1000000, &fdt_blob) == 0) | |
1304 | gd->fdt_blob = fdt_blob; | |
1305 | ||
1306 | /* | |
1307 | * Check if blob is a FIT images containings DTBs. | |
1308 | * If so, pick the most relevant | |
1309 | */ | |
1310 | fdt_blob = locate_dtb_in_fit(gd->fdt_blob); | |
1311 | if (fdt_blob) | |
1312 | gd->fdt_blob = fdt_blob; | |
1313 | # endif | |
29a23f9d | 1314 | #endif |
2f57c951 | 1315 | |
0879361f | 1316 | return fdtdec_prepare_fdt(); |
b45122fd SG |
1317 | } |
1318 | ||
1319 | #endif /* !USE_HOSTCC */ |