blob: eb11fc898e308efdadba2dc2b998e0b38158fdf6 [file] [log] [blame]
Tom Rini83d290c2018-05-06 17:58:06 -04001// SPDX-License-Identifier: GPL-2.0+
Simon Glassb5220bc2011-10-24 19:15:32 +00002/*
3 * Copyright (c) 2011 The Chromium OS Authors.
Simon Glassb5220bc2011-10-24 19:15:32 +00004 */
5
Heiko Schocher29a23f92014-03-03 12:19:30 +01006#ifndef USE_HOSTCC
Simon Glassb5220bc2011-10-24 19:15:32 +00007#include <common.h>
Jean-Jacques Hiblot035d6402017-09-15 12:57:31 +02008#include <boot_fit.h>
Simon Glassfcc0a872015-11-29 13:17:54 -07009#include <dm.h>
Simon Glassdb41d652019-12-28 10:45:07 -070010#include <hang.h>
Simon Glass9b4a2052019-12-28 10:45:05 -070011#include <init.h>
Simon Glass336d4612020-02-03 07:36:16 -070012#include <malloc.h>
Simon Glassb7e0d732017-05-18 20:09:02 -060013#include <dm/of_extra.h>
Simon Glass9eef56d2019-08-01 09:46:48 -060014#include <env.h>
Jean-Jacques Hiblot035d6402017-09-15 12:57:31 +020015#include <errno.h>
16#include <fdtdec.h>
17#include <fdt_support.h>
Simon Glass0c670fc2019-08-01 09:46:36 -060018#include <gzip.h>
Heinrich Schuchardtf980c992018-11-18 17:58:50 +010019#include <mapmem.h>
Masahiro Yamadab08c8c42018-03-05 01:20:11 +090020#include <linux/libfdt.h>
Jean-Jacques Hiblot035d6402017-09-15 12:57:31 +020021#include <serial.h>
22#include <asm/sections.h>
Simon Glass5c33c9f2014-07-23 06:55:09 -060023#include <linux/ctype.h>
Jean-Jacques Hiblot2f57c952017-09-15 12:57:32 +020024#include <linux/lzo.h>
Simon Glassb5220bc2011-10-24 19:15:32 +000025
26DECLARE_GLOBAL_DATA_PTR;
27
28/*
29 * Here are the type we know about. One day we might allow drivers to
30 * register. For now we just put them here. The COMPAT macro allows us to
31 * turn this into a sparse list later, and keeps the ID with the name.
Simon Glass01a227d2016-06-19 17:33:13 -060032 *
33 * NOTE: This list is basically a TODO list for things that need to be
34 * converted to driver model. So don't add new things here unless there is a
35 * good reason why driver-model conversion is infeasible. Examples include
36 * things which are used before driver model is available.
Simon Glassb5220bc2011-10-24 19:15:32 +000037 */
38#define COMPAT(id, name) name
39static const char * const compat_names[COMPAT_COUNT] = {
Simon Glassf88fe2d2012-02-27 10:52:34 +000040 COMPAT(UNKNOWN, "<none>"),
Jimmy Zhang0e35ad02012-04-02 13:18:52 +000041 COMPAT(NVIDIA_TEGRA20_EMC, "nvidia,tegra20-emc"),
42 COMPAT(NVIDIA_TEGRA20_EMC_TABLE, "nvidia,tegra20-emc-table"),
Jim Lin312693c2012-07-29 20:53:29 +000043 COMPAT(NVIDIA_TEGRA20_NAND, "nvidia,tegra20-nand"),
Thierry Reding79c7a902014-12-09 22:25:09 -070044 COMPAT(NVIDIA_TEGRA124_XUSB_PADCTL, "nvidia,tegra124-xusb-padctl"),
Tom Warren7aaa5a62015-03-04 16:36:00 -070045 COMPAT(NVIDIA_TEGRA210_XUSB_PADCTL, "nvidia,tegra210-xusb-padctl"),
Hatim RVcc9fe332012-12-11 00:52:46 +000046 COMPAT(SMSC_LAN9215, "smsc,lan9215"),
47 COMPAT(SAMSUNG_EXYNOS5_SROMC, "samsung,exynos-sromc"),
Rajeshwari Shinde6abd1622013-01-07 23:35:05 +000048 COMPAT(SAMSUNG_EXYNOS_USB_PHY, "samsung,exynos-usb-phy"),
Vivek Gautam108b85b2013-09-14 14:02:48 +053049 COMPAT(SAMSUNG_EXYNOS5_USB3_PHY, "samsung,exynos5250-usb3-phy"),
Akshay Saraswat618766c2013-02-25 01:13:01 +000050 COMPAT(SAMSUNG_EXYNOS_TMU, "samsung,exynos-tmu"),
Piotr Wilczekde461c52014-03-07 14:59:39 +010051 COMPAT(SAMSUNG_EXYNOS_MIPI_DSI, "samsung,exynos-mipi-dsi"),
Jaehoon Chung7d3ca0f2014-05-16 13:59:51 +090052 COMPAT(SAMSUNG_EXYNOS_DWMMC, "samsung,exynos-dwmmc"),
Neil Armstrong51e4e3e2019-02-10 10:16:21 +000053 COMPAT(GENERIC_SPI_FLASH, "jedec,spi-nor"),
Ajay Kumar45c480c2014-09-05 16:53:33 +053054 COMPAT(SAMSUNG_EXYNOS_SYSMMU, "samsung,sysmmu-v3.3"),
Simon Glass77f9b1f2014-11-12 22:42:21 -070055 COMPAT(INTEL_MICROCODE, "intel,microcode"),
Bin Mengc89ada02015-02-05 23:42:26 +080056 COMPAT(INTEL_QRK_MRC, "intel,quark-mrc"),
Marek Vasut6ab00db2015-07-25 19:33:56 +020057 COMPAT(ALTERA_SOCFPGA_DWMAC, "altr,socfpga-stmmac"),
Marek Vasut129adf52015-07-25 10:48:14 +020058 COMPAT(ALTERA_SOCFPGA_DWMMC, "altr,socfpga-dw-mshc"),
Marek Vasutef4b01b2015-12-05 19:28:44 +010059 COMPAT(ALTERA_SOCFPGA_DWC2USB, "snps,dwc2"),
Simon Glass39ea0ee2016-06-19 17:33:14 -060060 COMPAT(INTEL_BAYTRAIL_FSP, "intel,baytrail-fsp"),
61 COMPAT(INTEL_BAYTRAIL_FSP_MDP, "intel,baytrail-fsp-mdp"),
62 COMPAT(INTEL_IVYBRIDGE_FSP, "intel,ivybridge-fsp"),
Boris Brezillon4ccae812016-06-15 21:09:23 +020063 COMPAT(COMPAT_SUNXI_NAND, "allwinner,sun4i-a10-nand"),
Ley Foon Tane11b5e82017-04-05 17:32:47 +080064 COMPAT(ALTERA_SOCFPGA_CLK, "altr,clk-mgr"),
65 COMPAT(ALTERA_SOCFPGA_PINCTRL_SINGLE, "pinctrl-single"),
66 COMPAT(ALTERA_SOCFPGA_H2F_BRG, "altr,socfpga-hps2fpga-bridge"),
67 COMPAT(ALTERA_SOCFPGA_LWH2F_BRG, "altr,socfpga-lwhps2fpga-bridge"),
68 COMPAT(ALTERA_SOCFPGA_F2H_BRG, "altr,socfpga-fpga2hps-bridge"),
69 COMPAT(ALTERA_SOCFPGA_F2SDR0, "altr,socfpga-fpga2sdram0-bridge"),
70 COMPAT(ALTERA_SOCFPGA_F2SDR1, "altr,socfpga-fpga2sdram1-bridge"),
71 COMPAT(ALTERA_SOCFPGA_F2SDR2, "altr,socfpga-fpga2sdram2-bridge"),
Tien Fong Cheeeb57c0b2017-09-25 16:40:03 +080072 COMPAT(ALTERA_SOCFPGA_FPGA0, "altr,socfpga-a10-fpga-mgr"),
73 COMPAT(ALTERA_SOCFPGA_NOC, "altr,socfpga-a10-noc"),
Marek Vasut19c8fc72018-05-12 11:56:10 +020074 COMPAT(ALTERA_SOCFPGA_CLK_INIT, "altr,socfpga-a10-clk-init")
Simon Glassb5220bc2011-10-24 19:15:32 +000075};
76
Simon Glassa53f4a22012-01-17 08:20:50 +000077const char *fdtdec_get_compatible(enum fdt_compat_id id)
78{
79 /* We allow reading of the 'unknown' ID for testing purposes */
80 assert(id >= 0 && id < COMPAT_COUNT);
81 return compat_names[id];
82}
83
Stephen Warren02464e32015-08-06 15:31:02 -060084fdt_addr_t fdtdec_get_addr_size_fixed(const void *blob, int node,
Mario Six2e386622018-01-15 11:07:35 +010085 const char *prop_name, int index, int na,
86 int ns, fdt_size_t *sizep,
87 bool translate)
Stephen Warren02464e32015-08-06 15:31:02 -060088{
89 const fdt32_t *prop, *prop_end;
90 const fdt32_t *prop_addr, *prop_size, *prop_after_size;
91 int len;
92 fdt_addr_t addr;
93
94 debug("%s: %s: ", __func__, prop_name);
95
Stephen Warren02464e32015-08-06 15:31:02 -060096 prop = fdt_getprop(blob, node, prop_name, &len);
97 if (!prop) {
98 debug("(not found)\n");
99 return FDT_ADDR_T_NONE;
100 }
101 prop_end = prop + (len / sizeof(*prop));
102
103 prop_addr = prop + (index * (na + ns));
104 prop_size = prop_addr + na;
105 prop_after_size = prop_size + ns;
106 if (prop_after_size > prop_end) {
107 debug("(not enough data: expected >= %d cells, got %d cells)\n",
108 (u32)(prop_after_size - prop), ((u32)(prop_end - prop)));
109 return FDT_ADDR_T_NONE;
110 }
111
Vignesh R5efa1bf2017-03-20 10:04:38 +0530112#if CONFIG_IS_ENABLED(OF_TRANSLATE)
Stephen Warren6e06acb2016-08-05 09:47:51 -0600113 if (translate)
114 addr = fdt_translate_address(blob, node, prop_addr);
115 else
116#endif
117 addr = fdtdec_get_number(prop_addr, na);
Stephen Warren02464e32015-08-06 15:31:02 -0600118
119 if (sizep) {
120 *sizep = fdtdec_get_number(prop_size, ns);
Simon Glassfd30d2c2016-02-29 15:25:37 -0700121 debug("addr=%08llx, size=%llx\n", (unsigned long long)addr,
122 (unsigned long long)*sizep);
Stephen Warren02464e32015-08-06 15:31:02 -0600123 } else {
Simon Glassfd30d2c2016-02-29 15:25:37 -0700124 debug("addr=%08llx\n", (unsigned long long)addr);
Stephen Warren02464e32015-08-06 15:31:02 -0600125 }
126
127 return addr;
128}
129
130fdt_addr_t fdtdec_get_addr_size_auto_parent(const void *blob, int parent,
Mario Six2e386622018-01-15 11:07:35 +0100131 int node, const char *prop_name,
132 int index, fdt_size_t *sizep,
133 bool translate)
Stephen Warren02464e32015-08-06 15:31:02 -0600134{
135 int na, ns;
136
137 debug("%s: ", __func__);
138
139 na = fdt_address_cells(blob, parent);
140 if (na < 1) {
141 debug("(bad #address-cells)\n");
142 return FDT_ADDR_T_NONE;
143 }
144
145 ns = fdt_size_cells(blob, parent);
Przemyslaw Marczakff0a6352015-09-30 13:14:50 +0200146 if (ns < 0) {
Stephen Warren02464e32015-08-06 15:31:02 -0600147 debug("(bad #size-cells)\n");
148 return FDT_ADDR_T_NONE;
149 }
150
151 debug("na=%d, ns=%d, ", na, ns);
152
153 return fdtdec_get_addr_size_fixed(blob, node, prop_name, index, na,
Stephen Warren6e06acb2016-08-05 09:47:51 -0600154 ns, sizep, translate);
Stephen Warren02464e32015-08-06 15:31:02 -0600155}
156
157fdt_addr_t fdtdec_get_addr_size_auto_noparent(const void *blob, int node,
Mario Six2e386622018-01-15 11:07:35 +0100158 const char *prop_name, int index,
159 fdt_size_t *sizep,
160 bool translate)
Stephen Warren02464e32015-08-06 15:31:02 -0600161{
162 int parent;
163
164 debug("%s: ", __func__);
165
166 parent = fdt_parent_offset(blob, node);
167 if (parent < 0) {
168 debug("(no parent found)\n");
169 return FDT_ADDR_T_NONE;
170 }
171
172 return fdtdec_get_addr_size_auto_parent(blob, parent, node, prop_name,
Stephen Warren6e06acb2016-08-05 09:47:51 -0600173 index, sizep, translate);
Stephen Warren02464e32015-08-06 15:31:02 -0600174}
175
Simon Glass4397a2a2013-03-19 04:58:51 +0000176fdt_addr_t fdtdec_get_addr_size(const void *blob, int node,
Mario Six2e386622018-01-15 11:07:35 +0100177 const char *prop_name, fdt_size_t *sizep)
Simon Glassb5220bc2011-10-24 19:15:32 +0000178{
Stephen Warrend93b9a02015-09-25 10:11:41 -0600179 int ns = sizep ? (sizeof(fdt_size_t) / sizeof(fdt32_t)) : 0;
180
Stephen Warren02464e32015-08-06 15:31:02 -0600181 return fdtdec_get_addr_size_fixed(blob, node, prop_name, 0,
182 sizeof(fdt_addr_t) / sizeof(fdt32_t),
Stephen Warren6e06acb2016-08-05 09:47:51 -0600183 ns, sizep, false);
Simon Glassb5220bc2011-10-24 19:15:32 +0000184}
185
Mario Six2e386622018-01-15 11:07:35 +0100186fdt_addr_t fdtdec_get_addr(const void *blob, int node, const char *prop_name)
Simon Glass4397a2a2013-03-19 04:58:51 +0000187{
188 return fdtdec_get_addr_size(blob, node, prop_name, NULL);
189}
190
Sekhar Norid50d6812018-12-06 15:40:08 +0530191#if CONFIG_IS_ENABLED(PCI) && defined(CONFIG_DM_PCI)
Bin Menga62e84d2014-12-31 16:05:11 +0800192int fdtdec_get_pci_vendev(const void *blob, int node, u16 *vendor, u16 *device)
193{
194 const char *list, *end;
195 int len;
196
197 list = fdt_getprop(blob, node, "compatible", &len);
198 if (!list)
199 return -ENOENT;
200
201 end = list + len;
202 while (list < end) {
Bin Menga62e84d2014-12-31 16:05:11 +0800203 len = strlen(list);
204 if (len >= strlen("pciVVVV,DDDD")) {
Mario Sixb79221a2018-01-15 11:07:36 +0100205 char *s = strstr(list, "pci");
Bin Menga62e84d2014-12-31 16:05:11 +0800206
207 /*
208 * check if the string is something like pciVVVV,DDDD.RR
209 * or just pciVVVV,DDDD
210 */
211 if (s && s[7] == ',' &&
212 (s[12] == '.' || s[12] == 0)) {
213 s += 3;
214 *vendor = simple_strtol(s, NULL, 16);
215
216 s += 5;
217 *device = simple_strtol(s, NULL, 16);
218
219 return 0;
220 }
Bin Menga62e84d2014-12-31 16:05:11 +0800221 }
Bin Mengbc6351e2015-08-20 06:40:25 -0700222 list += (len + 1);
Bin Menga62e84d2014-12-31 16:05:11 +0800223 }
224
225 return -ENOENT;
226}
227
Simon Glass194fca92020-01-27 08:49:38 -0700228int fdtdec_get_pci_bar32(const struct udevice *dev, struct fdt_pci_addr *addr,
Simon Glassfcc0a872015-11-29 13:17:54 -0700229 u32 *bar)
Bin Menga62e84d2014-12-31 16:05:11 +0800230{
Bin Menga62e84d2014-12-31 16:05:11 +0800231 int barnum;
Bin Menga62e84d2014-12-31 16:05:11 +0800232
233 /* extract the bar number from fdt_pci_addr */
234 barnum = addr->phys_hi & 0xff;
Mario Sixb79221a2018-01-15 11:07:36 +0100235 if (barnum < PCI_BASE_ADDRESS_0 || barnum > PCI_CARDBUS_CIS)
Bin Menga62e84d2014-12-31 16:05:11 +0800236 return -EINVAL;
237
238 barnum = (barnum - PCI_BASE_ADDRESS_0) / 4;
Simon Glassfcc0a872015-11-29 13:17:54 -0700239 *bar = dm_pci_read_bar32(dev, barnum);
Bin Menga62e84d2014-12-31 16:05:11 +0800240
241 return 0;
242}
243#endif
244
Che-Liang Chiouaadef0a2012-10-25 16:31:05 +0000245uint64_t fdtdec_get_uint64(const void *blob, int node, const char *prop_name,
Mario Six2e386622018-01-15 11:07:35 +0100246 uint64_t default_val)
Che-Liang Chiouaadef0a2012-10-25 16:31:05 +0000247{
Jean-Jacques Hiblotd60ae4c2019-10-22 10:05:22 +0200248 const unaligned_fdt64_t *cell64;
Che-Liang Chiouaadef0a2012-10-25 16:31:05 +0000249 int length;
250
251 cell64 = fdt_getprop(blob, node, prop_name, &length);
252 if (!cell64 || length < sizeof(*cell64))
253 return default_val;
254
255 return fdt64_to_cpu(*cell64);
256}
257
Simon Glassf88fe2d2012-02-27 10:52:34 +0000258int fdtdec_get_is_enabled(const void *blob, int node)
Simon Glassb5220bc2011-10-24 19:15:32 +0000259{
260 const char *cell;
261
Simon Glassf88fe2d2012-02-27 10:52:34 +0000262 /*
263 * It should say "okay", so only allow that. Some fdts use "ok" but
264 * this is a bug. Please fix your device tree source file. See here
265 * for discussion:
266 *
267 * http://www.mail-archive.com/u-boot@lists.denx.de/msg71598.html
268 */
Simon Glassb5220bc2011-10-24 19:15:32 +0000269 cell = fdt_getprop(blob, node, "status", NULL);
270 if (cell)
Mario Sixb79221a2018-01-15 11:07:36 +0100271 return strcmp(cell, "okay") == 0;
Simon Glassf88fe2d2012-02-27 10:52:34 +0000272 return 1;
Simon Glassb5220bc2011-10-24 19:15:32 +0000273}
274
Gerald Van Baren7cde3972012-11-12 23:13:54 -0500275enum fdt_compat_id fdtdec_lookup(const void *blob, int node)
Simon Glassb5220bc2011-10-24 19:15:32 +0000276{
277 enum fdt_compat_id id;
278
279 /* Search our drivers */
280 for (id = COMPAT_UNKNOWN; id < COMPAT_COUNT; id++)
Mario Sixb79221a2018-01-15 11:07:36 +0100281 if (fdt_node_check_compatible(blob, node,
282 compat_names[id]) == 0)
Simon Glassb5220bc2011-10-24 19:15:32 +0000283 return id;
284 return COMPAT_UNKNOWN;
285}
286
Mario Six2e386622018-01-15 11:07:35 +0100287int fdtdec_next_compatible(const void *blob, int node, enum fdt_compat_id id)
Simon Glassb5220bc2011-10-24 19:15:32 +0000288{
289 return fdt_node_offset_by_compatible(blob, node, compat_names[id]);
290}
291
Simon Glass3ddecfc2012-04-02 13:18:42 +0000292int fdtdec_next_compatible_subnode(const void *blob, int node,
Mario Six2e386622018-01-15 11:07:35 +0100293 enum fdt_compat_id id, int *depthp)
Simon Glass3ddecfc2012-04-02 13:18:42 +0000294{
295 do {
296 node = fdt_next_node(blob, node, depthp);
297 } while (*depthp > 1);
298
299 /* If this is a direct subnode, and compatible, return it */
300 if (*depthp == 1 && 0 == fdt_node_check_compatible(
301 blob, node, compat_names[id]))
302 return node;
303
304 return -FDT_ERR_NOTFOUND;
305}
306
Mario Six2e386622018-01-15 11:07:35 +0100307int fdtdec_next_alias(const void *blob, const char *name, enum fdt_compat_id id,
308 int *upto)
Simon Glassb5220bc2011-10-24 19:15:32 +0000309{
310#define MAX_STR_LEN 20
311 char str[MAX_STR_LEN + 20];
312 int node, err;
313
314 /* snprintf() is not available */
315 assert(strlen(name) < MAX_STR_LEN);
316 sprintf(str, "%.*s%d", MAX_STR_LEN, name, *upto);
Simon Glass00878472012-10-31 14:02:42 +0000317 node = fdt_path_offset(blob, str);
Simon Glassb5220bc2011-10-24 19:15:32 +0000318 if (node < 0)
319 return node;
320 err = fdt_node_check_compatible(blob, node, compat_names[id]);
321 if (err < 0)
322 return err;
Simon Glassf88fe2d2012-02-27 10:52:34 +0000323 if (err)
324 return -FDT_ERR_NOTFOUND;
325 (*upto)++;
326 return node;
Simon Glassb5220bc2011-10-24 19:15:32 +0000327}
328
Simon Glassa53f4a22012-01-17 08:20:50 +0000329int fdtdec_find_aliases_for_id(const void *blob, const char *name,
Mario Six2e386622018-01-15 11:07:35 +0100330 enum fdt_compat_id id, int *node_list,
331 int maxcount)
Simon Glassa53f4a22012-01-17 08:20:50 +0000332{
Simon Glassc6782272012-02-03 15:13:53 +0000333 memset(node_list, '\0', sizeof(*node_list) * maxcount);
334
335 return fdtdec_add_aliases_for_id(blob, name, id, node_list, maxcount);
336}
337
338/* TODO: Can we tighten this code up a little? */
339int fdtdec_add_aliases_for_id(const void *blob, const char *name,
Mario Six2e386622018-01-15 11:07:35 +0100340 enum fdt_compat_id id, int *node_list,
341 int maxcount)
Simon Glassc6782272012-02-03 15:13:53 +0000342{
Simon Glassa53f4a22012-01-17 08:20:50 +0000343 int name_len = strlen(name);
344 int nodes[maxcount];
345 int num_found = 0;
346 int offset, node;
347 int alias_node;
348 int count;
349 int i, j;
350
351 /* find the alias node if present */
352 alias_node = fdt_path_offset(blob, "/aliases");
353
354 /*
355 * start with nothing, and we can assume that the root node can't
356 * match
357 */
358 memset(nodes, '\0', sizeof(nodes));
359
360 /* First find all the compatible nodes */
361 for (node = count = 0; node >= 0 && count < maxcount;) {
362 node = fdtdec_next_compatible(blob, node, id);
363 if (node >= 0)
364 nodes[count++] = node;
365 }
366 if (node >= 0)
367 debug("%s: warning: maxcount exceeded with alias '%s'\n",
Mario Six2e386622018-01-15 11:07:35 +0100368 __func__, name);
Simon Glassa53f4a22012-01-17 08:20:50 +0000369
370 /* Now find all the aliases */
Simon Glassa53f4a22012-01-17 08:20:50 +0000371 for (offset = fdt_first_property_offset(blob, alias_node);
372 offset > 0;
373 offset = fdt_next_property_offset(blob, offset)) {
374 const struct fdt_property *prop;
375 const char *path;
376 int number;
377 int found;
378
379 node = 0;
380 prop = fdt_get_property_by_offset(blob, offset, NULL);
381 path = fdt_string(blob, fdt32_to_cpu(prop->nameoff));
382 if (prop->len && 0 == strncmp(path, name, name_len))
383 node = fdt_path_offset(blob, prop->data);
384 if (node <= 0)
385 continue;
386
387 /* Get the alias number */
388 number = simple_strtoul(path + name_len, NULL, 10);
389 if (number < 0 || number >= maxcount) {
390 debug("%s: warning: alias '%s' is out of range\n",
Mario Six2e386622018-01-15 11:07:35 +0100391 __func__, path);
Simon Glassa53f4a22012-01-17 08:20:50 +0000392 continue;
393 }
394
395 /* Make sure the node we found is actually in our list! */
396 found = -1;
397 for (j = 0; j < count; j++)
398 if (nodes[j] == node) {
399 found = j;
400 break;
401 }
402
403 if (found == -1) {
404 debug("%s: warning: alias '%s' points to a node "
405 "'%s' that is missing or is not compatible "
406 " with '%s'\n", __func__, path,
407 fdt_get_name(blob, node, NULL),
408 compat_names[id]);
409 continue;
410 }
411
412 /*
413 * Add this node to our list in the right place, and mark
414 * it as done.
415 */
416 if (fdtdec_get_is_enabled(blob, node)) {
Simon Glassc6782272012-02-03 15:13:53 +0000417 if (node_list[number]) {
418 debug("%s: warning: alias '%s' requires that "
419 "a node be placed in the list in a "
420 "position which is already filled by "
421 "node '%s'\n", __func__, path,
422 fdt_get_name(blob, node, NULL));
423 continue;
424 }
Simon Glassa53f4a22012-01-17 08:20:50 +0000425 node_list[number] = node;
426 if (number >= num_found)
427 num_found = number + 1;
428 }
Simon Glassc6782272012-02-03 15:13:53 +0000429 nodes[found] = 0;
Simon Glassa53f4a22012-01-17 08:20:50 +0000430 }
431
432 /* Add any nodes not mentioned by an alias */
433 for (i = j = 0; i < maxcount; i++) {
434 if (!node_list[i]) {
435 for (; j < maxcount; j++)
436 if (nodes[j] &&
Mario Six2e386622018-01-15 11:07:35 +0100437 fdtdec_get_is_enabled(blob, nodes[j]))
Simon Glassa53f4a22012-01-17 08:20:50 +0000438 break;
439
440 /* Have we run out of nodes to add? */
441 if (j == maxcount)
442 break;
443
444 assert(!node_list[i]);
445 node_list[i] = nodes[j++];
446 if (i >= num_found)
447 num_found = i + 1;
448 }
449 }
450
451 return num_found;
452}
453
Simon Glass5c33c9f2014-07-23 06:55:09 -0600454int fdtdec_get_alias_seq(const void *blob, const char *base, int offset,
455 int *seqp)
456{
457 int base_len = strlen(base);
458 const char *find_name;
459 int find_namelen;
460 int prop_offset;
461 int aliases;
462
463 find_name = fdt_get_name(blob, offset, &find_namelen);
464 debug("Looking for '%s' at %d, name %s\n", base, offset, find_name);
465
466 aliases = fdt_path_offset(blob, "/aliases");
467 for (prop_offset = fdt_first_property_offset(blob, aliases);
468 prop_offset > 0;
469 prop_offset = fdt_next_property_offset(blob, prop_offset)) {
470 const char *prop;
471 const char *name;
472 const char *slash;
Simon Glassc4af6732015-06-23 15:39:08 -0600473 int len, val;
Simon Glass5c33c9f2014-07-23 06:55:09 -0600474
475 prop = fdt_getprop_by_offset(blob, prop_offset, &name, &len);
476 debug(" - %s, %s\n", name, prop);
477 if (len < find_namelen || *prop != '/' || prop[len - 1] ||
478 strncmp(name, base, base_len))
479 continue;
480
481 slash = strrchr(prop, '/');
482 if (strcmp(slash + 1, find_name))
483 continue;
Simon Glassc4af6732015-06-23 15:39:08 -0600484 val = trailing_strtol(name);
485 if (val != -1) {
486 *seqp = val;
487 debug("Found seq %d\n", *seqp);
488 return 0;
Simon Glass5c33c9f2014-07-23 06:55:09 -0600489 }
490 }
491
492 debug("Not found\n");
493 return -ENOENT;
494}
495
Michal Simek003c9dc2019-01-31 16:30:58 +0100496int fdtdec_get_alias_highest_id(const void *blob, const char *base)
497{
498 int base_len = strlen(base);
499 int prop_offset;
500 int aliases;
501 int max = -1;
502
503 debug("Looking for highest alias id for '%s'\n", base);
504
505 aliases = fdt_path_offset(blob, "/aliases");
506 for (prop_offset = fdt_first_property_offset(blob, aliases);
507 prop_offset > 0;
508 prop_offset = fdt_next_property_offset(blob, prop_offset)) {
509 const char *prop;
510 const char *name;
511 int len, val;
512
513 prop = fdt_getprop_by_offset(blob, prop_offset, &name, &len);
514 debug(" - %s, %s\n", name, prop);
515 if (*prop != '/' || prop[len - 1] ||
516 strncmp(name, base, base_len))
517 continue;
518
519 val = trailing_strtol(name);
520 if (val > max) {
521 debug("Found seq %d\n", val);
522 max = val;
523 }
524 }
525
526 return max;
527}
528
Simon Glass3bc37a52015-10-17 19:41:14 -0600529const char *fdtdec_get_chosen_prop(const void *blob, const char *name)
530{
531 int chosen_node;
532
533 if (!blob)
534 return NULL;
535 chosen_node = fdt_path_offset(blob, "/chosen");
536 return fdt_getprop(blob, chosen_node, name, NULL);
537}
538
Simon Glassaac07d42014-09-04 16:27:24 -0600539int fdtdec_get_chosen_node(const void *blob, const char *name)
540{
541 const char *prop;
Simon Glassaac07d42014-09-04 16:27:24 -0600542
Simon Glass3bc37a52015-10-17 19:41:14 -0600543 prop = fdtdec_get_chosen_prop(blob, name);
Simon Glassaac07d42014-09-04 16:27:24 -0600544 if (!prop)
545 return -FDT_ERR_NOTFOUND;
546 return fdt_path_offset(blob, prop);
547}
548
Simon Glass9a263e52012-03-28 10:08:24 +0000549int fdtdec_check_fdt(void)
550{
551 /*
552 * We must have an FDT, but we cannot panic() yet since the console
553 * is not ready. So for now, just assert(). Boards which need an early
554 * FDT (prior to console ready) will need to make their own
555 * arrangements and do their own checks.
556 */
557 assert(!fdtdec_prepare_fdt());
558 return 0;
559}
560
Simon Glassb5220bc2011-10-24 19:15:32 +0000561/*
562 * This function is a little odd in that it accesses global data. At some
563 * point if the architecture board.c files merge this will make more sense.
564 * Even now, it is common code.
565 */
Simon Glass9a263e52012-03-28 10:08:24 +0000566int fdtdec_prepare_fdt(void)
Simon Glassb5220bc2011-10-24 19:15:32 +0000567{
Simon Glassc309c2d2013-04-20 08:42:46 +0000568 if (!gd->fdt_blob || ((uintptr_t)gd->fdt_blob & 3) ||
569 fdt_check_header(gd->fdt_blob)) {
Simon Glass66312372015-02-27 22:06:32 -0700570#ifdef CONFIG_SPL_BUILD
571 puts("Missing DTB\n");
572#else
573 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");
Simon Glasscb5f97f702015-06-23 15:39:09 -0600574# ifdef DEBUG
575 if (gd->fdt_blob) {
576 printf("fdt_blob=%p\n", gd->fdt_blob);
577 print_buffer((ulong)gd->fdt_blob, gd->fdt_blob, 4,
578 32, 0);
579 }
580# endif
Simon Glass66312372015-02-27 22:06:32 -0700581#endif
Simon Glass9a263e52012-03-28 10:08:24 +0000582 return -1;
583 }
Simon Glassb5220bc2011-10-24 19:15:32 +0000584 return 0;
585}
Simon Glassd17da652012-02-27 10:52:35 +0000586
587int fdtdec_lookup_phandle(const void *blob, int node, const char *prop_name)
588{
589 const u32 *phandle;
590 int lookup;
591
Simon Glass1cb23232012-07-12 05:25:01 +0000592 debug("%s: %s\n", __func__, prop_name);
Simon Glassd17da652012-02-27 10:52:35 +0000593 phandle = fdt_getprop(blob, node, prop_name, NULL);
594 if (!phandle)
595 return -FDT_ERR_NOTFOUND;
596
597 lookup = fdt_node_offset_by_phandle(blob, fdt32_to_cpu(*phandle));
598 return lookup;
599}
600
601/**
602 * Look up a property in a node and check that it has a minimum length.
603 *
604 * @param blob FDT blob
605 * @param node node to examine
606 * @param prop_name name of property to find
607 * @param min_len minimum property length in bytes
608 * @param err 0 if ok, or -FDT_ERR_NOTFOUND if the property is not
609 found, or -FDT_ERR_BADLAYOUT if not enough data
610 * @return pointer to cell, which is only valid if err == 0
611 */
612static const void *get_prop_check_min_len(const void *blob, int node,
Mario Six2e386622018-01-15 11:07:35 +0100613 const char *prop_name, int min_len,
614 int *err)
Simon Glassd17da652012-02-27 10:52:35 +0000615{
616 const void *cell;
617 int len;
618
619 debug("%s: %s\n", __func__, prop_name);
620 cell = fdt_getprop(blob, node, prop_name, &len);
621 if (!cell)
622 *err = -FDT_ERR_NOTFOUND;
623 else if (len < min_len)
624 *err = -FDT_ERR_BADLAYOUT;
625 else
626 *err = 0;
627 return cell;
628}
629
630int fdtdec_get_int_array(const void *blob, int node, const char *prop_name,
Mario Six2e386622018-01-15 11:07:35 +0100631 u32 *array, int count)
Simon Glassd17da652012-02-27 10:52:35 +0000632{
633 const u32 *cell;
Mario Sixb79221a2018-01-15 11:07:36 +0100634 int err = 0;
Simon Glassd17da652012-02-27 10:52:35 +0000635
636 debug("%s: %s\n", __func__, prop_name);
637 cell = get_prop_check_min_len(blob, node, prop_name,
638 sizeof(u32) * count, &err);
639 if (!err) {
Mario Sixb79221a2018-01-15 11:07:36 +0100640 int i;
641
Simon Glassd17da652012-02-27 10:52:35 +0000642 for (i = 0; i < count; i++)
643 array[i] = fdt32_to_cpu(cell[i]);
644 }
645 return err;
646}
647
Simon Glassa9f04d42014-11-10 18:00:19 -0700648int fdtdec_get_int_array_count(const void *blob, int node,
649 const char *prop_name, u32 *array, int count)
650{
651 const u32 *cell;
652 int len, elems;
653 int i;
654
655 debug("%s: %s\n", __func__, prop_name);
656 cell = fdt_getprop(blob, node, prop_name, &len);
657 if (!cell)
658 return -FDT_ERR_NOTFOUND;
659 elems = len / sizeof(u32);
660 if (count > elems)
661 count = elems;
662 for (i = 0; i < count; i++)
663 array[i] = fdt32_to_cpu(cell[i]);
664
665 return count;
666}
667
Simon Glass96875e72012-04-02 13:18:41 +0000668const u32 *fdtdec_locate_array(const void *blob, int node,
669 const char *prop_name, int count)
670{
671 const u32 *cell;
672 int err;
673
674 cell = get_prop_check_min_len(blob, node, prop_name,
675 sizeof(u32) * count, &err);
676 return err ? NULL : cell;
677}
678
Simon Glassd17da652012-02-27 10:52:35 +0000679int fdtdec_get_bool(const void *blob, int node, const char *prop_name)
680{
681 const s32 *cell;
682 int len;
683
684 debug("%s: %s\n", __func__, prop_name);
685 cell = fdt_getprop(blob, node, prop_name, &len);
686 return cell != NULL;
687}
Simon Glassed3ee5c2012-02-27 10:52:36 +0000688
Simon Glass57068a72015-01-05 20:05:26 -0700689int fdtdec_parse_phandle_with_args(const void *blob, int src_node,
690 const char *list_name,
691 const char *cells_name,
692 int cell_count, int index,
693 struct fdtdec_phandle_args *out_args)
694{
695 const __be32 *list, *list_end;
696 int rc = 0, size, cur_index = 0;
697 uint32_t count = 0;
698 int node = -1;
699 int phandle;
700
701 /* Retrieve the phandle list property */
702 list = fdt_getprop(blob, src_node, list_name, &size);
703 if (!list)
704 return -ENOENT;
705 list_end = list + size / sizeof(*list);
706
707 /* Loop over the phandles until all the requested entry is found */
708 while (list < list_end) {
709 rc = -EINVAL;
710 count = 0;
711
712 /*
713 * If phandle is 0, then it is an empty entry with no
714 * arguments. Skip forward to the next entry.
715 */
716 phandle = be32_to_cpup(list++);
717 if (phandle) {
718 /*
719 * Find the provider node and parse the #*-cells
720 * property to determine the argument length.
721 *
722 * This is not needed if the cell count is hard-coded
723 * (i.e. cells_name not set, but cell_count is set),
724 * except when we're going to return the found node
725 * below.
726 */
727 if (cells_name || cur_index == index) {
728 node = fdt_node_offset_by_phandle(blob,
729 phandle);
730 if (!node) {
731 debug("%s: could not find phandle\n",
732 fdt_get_name(blob, src_node,
733 NULL));
734 goto err;
735 }
736 }
737
738 if (cells_name) {
739 count = fdtdec_get_int(blob, node, cells_name,
740 -1);
741 if (count == -1) {
742 debug("%s: could not get %s for %s\n",
743 fdt_get_name(blob, src_node,
744 NULL),
745 cells_name,
746 fdt_get_name(blob, node,
747 NULL));
748 goto err;
749 }
750 } else {
751 count = cell_count;
752 }
753
754 /*
755 * Make sure that the arguments actually fit in the
756 * remaining property data length
757 */
758 if (list + count > list_end) {
759 debug("%s: arguments longer than property\n",
760 fdt_get_name(blob, src_node, NULL));
761 goto err;
762 }
763 }
764
765 /*
766 * All of the error cases above bail out of the loop, so at
767 * this point, the parsing is successful. If the requested
768 * index matches, then fill the out_args structure and return,
769 * or return -ENOENT for an empty entry.
770 */
771 rc = -ENOENT;
772 if (cur_index == index) {
773 if (!phandle)
774 goto err;
775
776 if (out_args) {
777 int i;
778
779 if (count > MAX_PHANDLE_ARGS) {
780 debug("%s: too many arguments %d\n",
781 fdt_get_name(blob, src_node,
782 NULL), count);
783 count = MAX_PHANDLE_ARGS;
784 }
785 out_args->node = node;
786 out_args->args_count = count;
787 for (i = 0; i < count; i++) {
788 out_args->args[i] =
789 be32_to_cpup(list++);
790 }
791 }
792
793 /* Found it! return success */
794 return 0;
795 }
796
797 node = -1;
798 list += count;
799 cur_index++;
800 }
801
802 /*
803 * Result will be one of:
804 * -ENOENT : index is for empty phandle
805 * -EINVAL : parsing error on data
806 * [1..n] : Number of phandle (count mode; when index = -1)
807 */
808 rc = index < 0 ? cur_index : -ENOENT;
809 err:
810 return rc;
811}
812
Peng Fan1889a7e2016-02-01 13:31:15 +0800813int fdtdec_get_child_count(const void *blob, int node)
814{
815 int subnode;
816 int num = 0;
817
Simon Glassdf87e6b2016-10-02 17:59:29 -0600818 fdt_for_each_subnode(subnode, blob, node)
Peng Fan1889a7e2016-02-01 13:31:15 +0800819 num++;
820
821 return num;
822}
823
Anton Staffbed4d892012-04-17 09:01:28 +0000824int fdtdec_get_byte_array(const void *blob, int node, const char *prop_name,
Mario Six2e386622018-01-15 11:07:35 +0100825 u8 *array, int count)
Anton Staffbed4d892012-04-17 09:01:28 +0000826{
827 const u8 *cell;
828 int err;
829
830 cell = get_prop_check_min_len(blob, node, prop_name, count, &err);
831 if (!err)
832 memcpy(array, cell, count);
833 return err;
834}
835
836const u8 *fdtdec_locate_byte_array(const void *blob, int node,
Mario Six2e386622018-01-15 11:07:35 +0100837 const char *prop_name, int count)
Anton Staffbed4d892012-04-17 09:01:28 +0000838{
839 const u8 *cell;
840 int err;
841
842 cell = get_prop_check_min_len(blob, node, prop_name, count, &err);
843 if (err)
844 return NULL;
845 return cell;
846}
Abhilash Kesavan09258f12012-10-25 16:30:58 +0000847
Abhilash Kesavan09258f12012-10-25 16:30:58 +0000848int fdtdec_get_config_int(const void *blob, const char *prop_name,
Mario Six2e386622018-01-15 11:07:35 +0100849 int default_val)
Abhilash Kesavan09258f12012-10-25 16:30:58 +0000850{
851 int config_node;
852
853 debug("%s: %s\n", __func__, prop_name);
854 config_node = fdt_path_offset(blob, "/config");
855 if (config_node < 0)
856 return default_val;
857 return fdtdec_get_int(blob, config_node, prop_name, default_val);
858}
Simon Glass332ab0d2012-10-25 16:30:59 +0000859
Gabe Black79289c02012-10-25 16:31:04 +0000860int fdtdec_get_config_bool(const void *blob, const char *prop_name)
861{
862 int config_node;
863 const void *prop;
864
865 debug("%s: %s\n", __func__, prop_name);
866 config_node = fdt_path_offset(blob, "/config");
867 if (config_node < 0)
868 return 0;
869 prop = fdt_get_property(blob, config_node, prop_name, NULL);
870
871 return prop != NULL;
872}
873
Simon Glass332ab0d2012-10-25 16:30:59 +0000874char *fdtdec_get_config_string(const void *blob, const char *prop_name)
875{
876 const char *nodep;
877 int nodeoffset;
878 int len;
879
880 debug("%s: %s\n", __func__, prop_name);
881 nodeoffset = fdt_path_offset(blob, "/config");
882 if (nodeoffset < 0)
883 return NULL;
884
885 nodep = fdt_getprop(blob, nodeoffset, prop_name, &len);
886 if (!nodep)
887 return NULL;
888
889 return (char *)nodep;
890}
Simon Glassf20c4612012-10-25 16:31:00 +0000891
Simon Glass5f7bfdd2015-03-05 12:25:14 -0700892u64 fdtdec_get_number(const fdt32_t *ptr, unsigned int cells)
Thierry Reding56f42242014-08-26 17:33:53 +0200893{
894 u64 number = 0;
895
896 while (cells--)
897 number = (number << 32) | fdt32_to_cpu(*ptr++);
898
899 return number;
900}
901
902int fdt_get_resource(const void *fdt, int node, const char *property,
903 unsigned int index, struct fdt_resource *res)
904{
905 const fdt32_t *ptr, *end;
906 int na, ns, len, parent;
907 unsigned int i = 0;
908
909 parent = fdt_parent_offset(fdt, node);
910 if (parent < 0)
911 return parent;
912
913 na = fdt_address_cells(fdt, parent);
914 ns = fdt_size_cells(fdt, parent);
915
916 ptr = fdt_getprop(fdt, node, property, &len);
917 if (!ptr)
918 return len;
919
920 end = ptr + len / sizeof(*ptr);
921
922 while (ptr + na + ns <= end) {
923 if (i == index) {
Mario Sixb79221a2018-01-15 11:07:36 +0100924 res->start = fdtdec_get_number(ptr, na);
925 res->end = res->start;
Thierry Reding56f42242014-08-26 17:33:53 +0200926 res->end += fdtdec_get_number(&ptr[na], ns) - 1;
927 return 0;
928 }
929
930 ptr += na + ns;
931 i++;
932 }
933
934 return -FDT_ERR_NOTFOUND;
935}
936
937int fdt_get_named_resource(const void *fdt, int node, const char *property,
938 const char *prop_names, const char *name,
939 struct fdt_resource *res)
940{
941 int index;
942
Simon Glassb02e4042016-10-02 17:59:28 -0600943 index = fdt_stringlist_search(fdt, node, prop_names, name);
Thierry Reding56f42242014-08-26 17:33:53 +0200944 if (index < 0)
945 return index;
946
947 return fdt_get_resource(fdt, node, property, index, res);
948}
Thierry Reding9f85eee2014-08-26 17:33:54 +0200949
Simon Glass12e67112015-04-14 21:03:21 -0600950static int decode_timing_property(const void *blob, int node, const char *name,
951 struct timing_entry *result)
952{
953 int length, ret = 0;
954 const u32 *prop;
955
956 prop = fdt_getprop(blob, node, name, &length);
957 if (!prop) {
958 debug("%s: could not find property %s\n",
959 fdt_get_name(blob, node, NULL), name);
960 return length;
961 }
962
963 if (length == sizeof(u32)) {
964 result->typ = fdtdec_get_int(blob, node, name, 0);
965 result->min = result->typ;
966 result->max = result->typ;
967 } else {
968 ret = fdtdec_get_int_array(blob, node, name, &result->min, 3);
969 }
970
971 return ret;
972}
973
974int fdtdec_decode_display_timing(const void *blob, int parent, int index,
975 struct display_timing *dt)
976{
977 int i, node, timings_node;
978 u32 val = 0;
979 int ret = 0;
980
981 timings_node = fdt_subnode_offset(blob, parent, "display-timings");
982 if (timings_node < 0)
983 return timings_node;
984
985 for (i = 0, node = fdt_first_subnode(blob, timings_node);
986 node > 0 && i != index;
987 node = fdt_next_subnode(blob, node))
988 i++;
989
990 if (node < 0)
991 return node;
992
993 memset(dt, 0, sizeof(*dt));
994
995 ret |= decode_timing_property(blob, node, "hback-porch",
996 &dt->hback_porch);
997 ret |= decode_timing_property(blob, node, "hfront-porch",
998 &dt->hfront_porch);
999 ret |= decode_timing_property(blob, node, "hactive", &dt->hactive);
1000 ret |= decode_timing_property(blob, node, "hsync-len", &dt->hsync_len);
1001 ret |= decode_timing_property(blob, node, "vback-porch",
1002 &dt->vback_porch);
1003 ret |= decode_timing_property(blob, node, "vfront-porch",
1004 &dt->vfront_porch);
1005 ret |= decode_timing_property(blob, node, "vactive", &dt->vactive);
1006 ret |= decode_timing_property(blob, node, "vsync-len", &dt->vsync_len);
1007 ret |= decode_timing_property(blob, node, "clock-frequency",
1008 &dt->pixelclock);
1009
1010 dt->flags = 0;
1011 val = fdtdec_get_int(blob, node, "vsync-active", -1);
1012 if (val != -1) {
1013 dt->flags |= val ? DISPLAY_FLAGS_VSYNC_HIGH :
1014 DISPLAY_FLAGS_VSYNC_LOW;
1015 }
1016 val = fdtdec_get_int(blob, node, "hsync-active", -1);
1017 if (val != -1) {
1018 dt->flags |= val ? DISPLAY_FLAGS_HSYNC_HIGH :
1019 DISPLAY_FLAGS_HSYNC_LOW;
1020 }
1021 val = fdtdec_get_int(blob, node, "de-active", -1);
1022 if (val != -1) {
1023 dt->flags |= val ? DISPLAY_FLAGS_DE_HIGH :
1024 DISPLAY_FLAGS_DE_LOW;
1025 }
1026 val = fdtdec_get_int(blob, node, "pixelclk-active", -1);
1027 if (val != -1) {
1028 dt->flags |= val ? DISPLAY_FLAGS_PIXDATA_POSEDGE :
1029 DISPLAY_FLAGS_PIXDATA_NEGEDGE;
1030 }
1031
1032 if (fdtdec_get_bool(blob, node, "interlaced"))
1033 dt->flags |= DISPLAY_FLAGS_INTERLACED;
1034 if (fdtdec_get_bool(blob, node, "doublescan"))
1035 dt->flags |= DISPLAY_FLAGS_DOUBLESCAN;
1036 if (fdtdec_get_bool(blob, node, "doubleclk"))
1037 dt->flags |= DISPLAY_FLAGS_DOUBLECLK;
1038
Simon Glass04b9dd12016-05-05 07:28:21 -06001039 return ret;
Simon Glass12e67112015-04-14 21:03:21 -06001040}
1041
Marek Vasut3ebe09d2019-03-05 04:25:54 +01001042int fdtdec_setup_mem_size_base_fdt(const void *blob)
Nathan Rossi623f6012016-12-19 00:03:34 +10001043{
1044 int ret, mem;
1045 struct fdt_resource res;
1046
Marek Vasut3ebe09d2019-03-05 04:25:54 +01001047 mem = fdt_path_offset(blob, "/memory");
Nathan Rossi623f6012016-12-19 00:03:34 +10001048 if (mem < 0) {
1049 debug("%s: Missing /memory node\n", __func__);
1050 return -EINVAL;
1051 }
1052
Marek Vasut3ebe09d2019-03-05 04:25:54 +01001053 ret = fdt_get_resource(blob, mem, "reg", 0, &res);
Nathan Rossi623f6012016-12-19 00:03:34 +10001054 if (ret != 0) {
1055 debug("%s: Unable to decode first memory bank\n", __func__);
1056 return -EINVAL;
1057 }
1058
1059 gd->ram_size = (phys_size_t)(res.end - res.start + 1);
Siva Durga Prasad Paladugu1473b122018-07-16 15:56:10 +05301060 gd->ram_base = (unsigned long)res.start;
Simon Glassc69380f2017-05-27 07:38:13 -06001061 debug("%s: Initial DRAM size %llx\n", __func__,
1062 (unsigned long long)gd->ram_size);
Nathan Rossi623f6012016-12-19 00:03:34 +10001063
1064 return 0;
1065}
1066
Marek Vasut3ebe09d2019-03-05 04:25:54 +01001067int fdtdec_setup_mem_size_base(void)
1068{
1069 return fdtdec_setup_mem_size_base_fdt(gd->fdt_blob);
1070}
1071
Nathan Rossi623f6012016-12-19 00:03:34 +10001072#if defined(CONFIG_NR_DRAM_BANKS)
Jens Wiklander452bc122018-07-13 12:12:11 +02001073
Michal Simek658954c2018-10-03 15:53:52 +02001074static int get_next_memory_node(const void *blob, int mem)
Jens Wiklander452bc122018-07-13 12:12:11 +02001075{
Jens Wiklander452bc122018-07-13 12:12:11 +02001076 do {
Marek Vasut118f4d42019-03-05 04:25:55 +01001077 mem = fdt_node_offset_by_prop_value(blob, mem,
Michal Simek658954c2018-10-03 15:53:52 +02001078 "device_type", "memory", 7);
1079 } while (!fdtdec_get_is_enabled(blob, mem));
Jens Wiklander452bc122018-07-13 12:12:11 +02001080
1081 return mem;
1082}
1083
Marek Vasut118f4d42019-03-05 04:25:55 +01001084int fdtdec_setup_memory_banksize_fdt(const void *blob)
Nathan Rossi623f6012016-12-19 00:03:34 +10001085{
Michal Simek658954c2018-10-03 15:53:52 +02001086 int bank, ret, mem, reg = 0;
1087 struct fdt_resource res;
Nathan Rossi623f6012016-12-19 00:03:34 +10001088
Marek Vasut118f4d42019-03-05 04:25:55 +01001089 mem = get_next_memory_node(blob, -1);
Michal Simek658954c2018-10-03 15:53:52 +02001090 if (mem < 0) {
1091 debug("%s: Missing /memory node\n", __func__);
1092 return -EINVAL;
1093 }
Nathan Rossi623f6012016-12-19 00:03:34 +10001094
1095 for (bank = 0; bank < CONFIG_NR_DRAM_BANKS; bank++) {
Marek Vasut118f4d42019-03-05 04:25:55 +01001096 ret = fdt_get_resource(blob, mem, "reg", reg++, &res);
Michal Simek658954c2018-10-03 15:53:52 +02001097 if (ret == -FDT_ERR_NOTFOUND) {
Marek Vasut942ee092017-11-27 05:32:42 +01001098 reg = 0;
Marek Vasut118f4d42019-03-05 04:25:55 +01001099 mem = get_next_memory_node(blob, mem);
Michal Simek658954c2018-10-03 15:53:52 +02001100 if (mem == -FDT_ERR_NOTFOUND)
1101 break;
1102
Marek Vasut118f4d42019-03-05 04:25:55 +01001103 ret = fdt_get_resource(blob, mem, "reg", reg++, &res);
Michal Simek658954c2018-10-03 15:53:52 +02001104 if (ret == -FDT_ERR_NOTFOUND)
1105 break;
1106 }
1107 if (ret != 0) {
1108 return -EINVAL;
Marek Vasut942ee092017-11-27 05:32:42 +01001109 }
Nathan Rossi623f6012016-12-19 00:03:34 +10001110
1111 gd->bd->bi_dram[bank].start = (phys_addr_t)res.start;
1112 gd->bd->bi_dram[bank].size =
1113 (phys_size_t)(res.end - res.start + 1);
1114
1115 debug("%s: DRAM Bank #%d: start = 0x%llx, size = 0x%llx\n",
1116 __func__, bank,
1117 (unsigned long long)gd->bd->bi_dram[bank].start,
1118 (unsigned long long)gd->bd->bi_dram[bank].size);
1119 }
1120
1121 return 0;
1122}
Marek Vasut118f4d42019-03-05 04:25:55 +01001123
1124int fdtdec_setup_memory_banksize(void)
1125{
1126 return fdtdec_setup_memory_banksize_fdt(gd->fdt_blob);
1127
1128}
Nathan Rossi623f6012016-12-19 00:03:34 +10001129#endif
1130
Jean-Jacques Hiblot2f57c952017-09-15 12:57:32 +02001131#if CONFIG_IS_ENABLED(MULTI_DTB_FIT)
1132# if CONFIG_IS_ENABLED(MULTI_DTB_FIT_GZIP) ||\
1133 CONFIG_IS_ENABLED(MULTI_DTB_FIT_LZO)
1134static int uncompress_blob(const void *src, ulong sz_src, void **dstp)
1135{
Marek Vasut95f4bbd2019-03-08 16:06:55 +01001136 size_t sz_out = CONFIG_VAL(MULTI_DTB_FIT_UNCOMPRESS_SZ);
Marek Vasut1fd30352019-03-13 21:11:22 +01001137 bool gzip = 0, lzo = 0;
Jean-Jacques Hiblot2f57c952017-09-15 12:57:32 +02001138 ulong sz_in = sz_src;
1139 void *dst;
1140 int rc;
1141
1142 if (CONFIG_IS_ENABLED(GZIP))
Marek Vasut1fd30352019-03-13 21:11:22 +01001143 if (gzip_parse_header(src, sz_in) >= 0)
1144 gzip = 1;
Jean-Jacques Hiblot2f57c952017-09-15 12:57:32 +02001145 if (CONFIG_IS_ENABLED(LZO))
Marek Vasut1fd30352019-03-13 21:11:22 +01001146 if (!gzip && lzop_is_valid_header(src))
1147 lzo = 1;
1148
1149 if (!gzip && !lzo)
1150 return -EBADMSG;
1151
Jean-Jacques Hiblot2f57c952017-09-15 12:57:32 +02001152
1153 if (CONFIG_IS_ENABLED(MULTI_DTB_FIT_DYN_ALLOC)) {
1154 dst = malloc(sz_out);
1155 if (!dst) {
1156 puts("uncompress_blob: Unable to allocate memory\n");
1157 return -ENOMEM;
1158 }
1159 } else {
1160# if CONFIG_IS_ENABLED(MULTI_DTB_FIT_USER_DEFINED_AREA)
1161 dst = (void *)CONFIG_VAL(MULTI_DTB_FIT_USER_DEF_ADDR);
1162# else
1163 return -ENOTSUPP;
1164# endif
1165 }
1166
Marek Vasut1fd30352019-03-13 21:11:22 +01001167 if (CONFIG_IS_ENABLED(GZIP) && gzip)
Jean-Jacques Hiblot2f57c952017-09-15 12:57:32 +02001168 rc = gunzip(dst, sz_out, (u8 *)src, &sz_in);
Marek Vasut1fd30352019-03-13 21:11:22 +01001169 else if (CONFIG_IS_ENABLED(LZO) && lzo)
Jean-Jacques Hiblot2f57c952017-09-15 12:57:32 +02001170 rc = lzop_decompress(src, sz_in, dst, &sz_out);
Marek Vasut1fd30352019-03-13 21:11:22 +01001171 else
1172 hang();
Jean-Jacques Hiblot2f57c952017-09-15 12:57:32 +02001173
1174 if (rc < 0) {
1175 /* not a valid compressed blob */
1176 puts("uncompress_blob: Unable to uncompress\n");
1177 if (CONFIG_IS_ENABLED(MULTI_DTB_FIT_DYN_ALLOC))
1178 free(dst);
1179 return -EBADMSG;
1180 }
1181 *dstp = dst;
1182 return 0;
1183}
1184# else
1185static int uncompress_blob(const void *src, ulong sz_src, void **dstp)
1186{
Marek Vasut410d9b62018-10-18 20:37:05 +02001187 *dstp = (void *)src;
1188 return 0;
Jean-Jacques Hiblot2f57c952017-09-15 12:57:32 +02001189}
1190# endif
1191#endif
1192
Rob Clark3b595da2018-01-10 11:34:37 +01001193#if defined(CONFIG_OF_BOARD) || defined(CONFIG_OF_SEPARATE)
1194/*
1195 * For CONFIG_OF_SEPARATE, the board may optionally implement this to
1196 * provide and/or fixup the fdt.
1197 */
1198__weak void *board_fdt_blob_setup(void)
1199{
1200 void *fdt_blob = NULL;
1201#ifdef CONFIG_SPL_BUILD
1202 /* FDT is at end of BSS unless it is in a different memory region */
1203 if (IS_ENABLED(CONFIG_SPL_SEPARATE_BSS))
1204 fdt_blob = (ulong *)&_image_binary_end;
1205 else
1206 fdt_blob = (ulong *)&__bss_end;
1207#else
1208 /* FDT is at end of image */
1209 fdt_blob = (ulong *)&_end;
1210#endif
1211 return fdt_blob;
1212}
1213#endif
1214
Thierry Redingebf30e82019-04-15 11:32:13 +02001215int fdtdec_set_ethernet_mac_address(void *fdt, const u8 *mac, size_t size)
1216{
1217 const char *path;
1218 int offset, err;
1219
1220 if (!is_valid_ethaddr(mac))
1221 return -EINVAL;
1222
1223 path = fdt_get_alias(fdt, "ethernet");
1224 if (!path)
1225 return 0;
1226
1227 debug("ethernet alias found: %s\n", path);
1228
1229 offset = fdt_path_offset(fdt, path);
1230 if (offset < 0) {
1231 debug("ethernet alias points to absent node %s\n", path);
1232 return -ENOENT;
1233 }
1234
1235 err = fdt_setprop_inplace(fdt, offset, "local-mac-address", mac, size);
1236 if (err < 0)
1237 return err;
1238
1239 debug("MAC address: %pM\n", mac);
1240
1241 return 0;
1242}
1243
Thierry Redingc9222a02019-03-21 19:10:02 +01001244static int fdtdec_init_reserved_memory(void *blob)
1245{
1246 int na, ns, node, err;
1247 fdt32_t value;
1248
1249 /* inherit #address-cells and #size-cells from the root node */
1250 na = fdt_address_cells(blob, 0);
1251 ns = fdt_size_cells(blob, 0);
1252
1253 node = fdt_add_subnode(blob, 0, "reserved-memory");
1254 if (node < 0)
1255 return node;
1256
1257 err = fdt_setprop(blob, node, "ranges", NULL, 0);
1258 if (err < 0)
1259 return err;
1260
1261 value = cpu_to_fdt32(ns);
1262
1263 err = fdt_setprop(blob, node, "#size-cells", &value, sizeof(value));
1264 if (err < 0)
1265 return err;
1266
1267 value = cpu_to_fdt32(na);
1268
1269 err = fdt_setprop(blob, node, "#address-cells", &value, sizeof(value));
1270 if (err < 0)
1271 return err;
1272
1273 return node;
1274}
1275
1276int fdtdec_add_reserved_memory(void *blob, const char *basename,
1277 const struct fdt_memory *carveout,
1278 uint32_t *phandlep)
1279{
1280 fdt32_t cells[4] = {}, *ptr = cells;
1281 uint32_t upper, lower, phandle;
1282 int parent, node, na, ns, err;
Thierry Reding3bf2f152019-04-15 10:08:21 +02001283 fdt_size_t size;
Thierry Redingc9222a02019-03-21 19:10:02 +01001284 char name[64];
1285
1286 /* create an empty /reserved-memory node if one doesn't exist */
1287 parent = fdt_path_offset(blob, "/reserved-memory");
1288 if (parent < 0) {
1289 parent = fdtdec_init_reserved_memory(blob);
1290 if (parent < 0)
1291 return parent;
1292 }
1293
1294 /* only 1 or 2 #address-cells and #size-cells are supported */
1295 na = fdt_address_cells(blob, parent);
1296 if (na < 1 || na > 2)
1297 return -FDT_ERR_BADNCELLS;
1298
1299 ns = fdt_size_cells(blob, parent);
1300 if (ns < 1 || ns > 2)
1301 return -FDT_ERR_BADNCELLS;
1302
1303 /* find a matching node and return the phandle to that */
1304 fdt_for_each_subnode(node, blob, parent) {
1305 const char *name = fdt_get_name(blob, node, NULL);
1306 phys_addr_t addr, size;
1307
1308 addr = fdtdec_get_addr_size(blob, node, "reg", &size);
1309 if (addr == FDT_ADDR_T_NONE) {
1310 debug("failed to read address/size for %s\n", name);
1311 continue;
1312 }
1313
1314 if (addr == carveout->start && (addr + size) == carveout->end) {
Heiko Stuebner086336a2019-10-23 16:46:38 +02001315 if (phandlep)
1316 *phandlep = fdt_get_phandle(blob, node);
Thierry Redingc9222a02019-03-21 19:10:02 +01001317 return 0;
1318 }
1319 }
1320
1321 /*
1322 * Unpack the start address and generate the name of the new node
1323 * base on the basename and the unit-address.
1324 */
Thierry Reding3bf2f152019-04-15 10:08:21 +02001325 upper = upper_32_bits(carveout->start);
1326 lower = lower_32_bits(carveout->start);
Thierry Redingc9222a02019-03-21 19:10:02 +01001327
1328 if (na > 1 && upper > 0)
1329 snprintf(name, sizeof(name), "%s@%x,%x", basename, upper,
1330 lower);
1331 else {
1332 if (upper > 0) {
1333 debug("address %08x:%08x exceeds addressable space\n",
1334 upper, lower);
1335 return -FDT_ERR_BADVALUE;
1336 }
1337
1338 snprintf(name, sizeof(name), "%s@%x", basename, lower);
1339 }
1340
1341 node = fdt_add_subnode(blob, parent, name);
1342 if (node < 0)
1343 return node;
1344
Heiko Stuebner357d2ce2019-10-23 16:46:39 +02001345 if (phandlep) {
1346 err = fdt_generate_phandle(blob, &phandle);
1347 if (err < 0)
1348 return err;
Thierry Redingc9222a02019-03-21 19:10:02 +01001349
Heiko Stuebner357d2ce2019-10-23 16:46:39 +02001350 err = fdtdec_set_phandle(blob, node, phandle);
1351 if (err < 0)
1352 return err;
1353 }
Thierry Redingc9222a02019-03-21 19:10:02 +01001354
1355 /* store one or two address cells */
1356 if (na > 1)
1357 *ptr++ = cpu_to_fdt32(upper);
1358
1359 *ptr++ = cpu_to_fdt32(lower);
1360
1361 /* store one or two size cells */
Thierry Reding3bf2f152019-04-15 10:08:21 +02001362 size = carveout->end - carveout->start + 1;
1363 upper = upper_32_bits(size);
1364 lower = lower_32_bits(size);
Thierry Redingc9222a02019-03-21 19:10:02 +01001365
1366 if (ns > 1)
1367 *ptr++ = cpu_to_fdt32(upper);
1368
1369 *ptr++ = cpu_to_fdt32(lower);
1370
1371 err = fdt_setprop(blob, node, "reg", cells, (na + ns) * sizeof(*cells));
1372 if (err < 0)
1373 return err;
1374
1375 /* return the phandle for the new node for the caller to use */
1376 if (phandlep)
1377 *phandlep = phandle;
1378
1379 return 0;
1380}
1381
Thierry Reding16523ac2019-03-21 19:10:03 +01001382int fdtdec_get_carveout(const void *blob, const char *node, const char *name,
1383 unsigned int index, struct fdt_memory *carveout)
1384{
1385 const fdt32_t *prop;
1386 uint32_t phandle;
1387 int offset, len;
1388 fdt_size_t size;
1389
1390 offset = fdt_path_offset(blob, node);
1391 if (offset < 0)
1392 return offset;
1393
1394 prop = fdt_getprop(blob, offset, name, &len);
1395 if (!prop) {
1396 debug("failed to get %s for %s\n", name, node);
1397 return -FDT_ERR_NOTFOUND;
1398 }
1399
1400 if ((len % sizeof(phandle)) != 0) {
1401 debug("invalid phandle property\n");
1402 return -FDT_ERR_BADPHANDLE;
1403 }
1404
1405 if (len < (sizeof(phandle) * (index + 1))) {
1406 debug("invalid phandle index\n");
1407 return -FDT_ERR_BADPHANDLE;
1408 }
1409
1410 phandle = fdt32_to_cpu(prop[index]);
1411
1412 offset = fdt_node_offset_by_phandle(blob, phandle);
1413 if (offset < 0) {
1414 debug("failed to find node for phandle %u\n", phandle);
1415 return offset;
1416 }
1417
1418 carveout->start = fdtdec_get_addr_size_auto_noparent(blob, offset,
1419 "reg", 0, &size,
1420 true);
1421 if (carveout->start == FDT_ADDR_T_NONE) {
1422 debug("failed to read address/size from \"reg\" property\n");
1423 return -FDT_ERR_NOTFOUND;
1424 }
1425
1426 carveout->end = carveout->start + size - 1;
1427
1428 return 0;
1429}
1430
1431int fdtdec_set_carveout(void *blob, const char *node, const char *prop_name,
1432 unsigned int index, const char *name,
1433 const struct fdt_memory *carveout)
1434{
1435 uint32_t phandle;
1436 int err, offset;
1437 fdt32_t value;
1438
1439 /* XXX implement support for multiple phandles */
1440 if (index > 0) {
1441 debug("invalid index %u\n", index);
1442 return -FDT_ERR_BADOFFSET;
1443 }
1444
1445 err = fdtdec_add_reserved_memory(blob, name, carveout, &phandle);
1446 if (err < 0) {
1447 debug("failed to add reserved memory: %d\n", err);
1448 return err;
1449 }
1450
1451 offset = fdt_path_offset(blob, node);
1452 if (offset < 0) {
1453 debug("failed to find offset for node %s: %d\n", node, offset);
1454 return offset;
1455 }
1456
1457 value = cpu_to_fdt32(phandle);
1458
1459 err = fdt_setprop(blob, offset, prop_name, &value, sizeof(value));
1460 if (err < 0) {
1461 debug("failed to set %s property for node %s: %d\n", prop_name,
1462 node, err);
1463 return err;
1464 }
1465
1466 return 0;
1467}
1468
Simon Glass08793612015-02-27 22:06:35 -07001469int fdtdec_setup(void)
Simon Glassb45122f2015-02-27 22:06:34 -07001470{
Masahiro Yamada0f925822015-08-12 07:31:55 +09001471#if CONFIG_IS_ENABLED(OF_CONTROL)
Jean-Jacques Hiblot2f57c952017-09-15 12:57:32 +02001472# if CONFIG_IS_ENABLED(MULTI_DTB_FIT)
1473 void *fdt_blob;
1474# endif
Simon Glassb45122f2015-02-27 22:06:34 -07001475# ifdef CONFIG_OF_EMBED
1476 /* Get a pointer to the FDT */
Goldschmidt Simon9bd76b82017-11-21 12:29:56 +00001477# ifdef CONFIG_SPL_BUILD
1478 gd->fdt_blob = __dtb_dt_spl_begin;
1479# else
Simon Glassb45122f2015-02-27 22:06:34 -07001480 gd->fdt_blob = __dtb_dt_begin;
Goldschmidt Simon9bd76b82017-11-21 12:29:56 +00001481# endif
Rob Clark3b595da2018-01-10 11:34:37 +01001482# elif defined(CONFIG_OF_BOARD) || defined(CONFIG_OF_SEPARATE)
Alex Deymo82f766d2017-04-02 01:25:20 -07001483 /* Allow the board to override the fdt address. */
1484 gd->fdt_blob = board_fdt_blob_setup();
Simon Glassb45122f2015-02-27 22:06:34 -07001485# elif defined(CONFIG_OF_HOSTFILE)
1486 if (sandbox_read_fdt_from_file()) {
1487 puts("Failed to read control FDT\n");
1488 return -1;
1489 }
Lukas Auerc4f603f2019-08-21 21:14:40 +02001490# elif defined(CONFIG_OF_PRIOR_STAGE)
1491 gd->fdt_blob = (void *)prior_stage_fdt_address;
Simon Glassb45122f2015-02-27 22:06:34 -07001492# endif
1493# ifndef CONFIG_SPL_BUILD
1494 /* Allow the early environment to override the fdt address */
Heinrich Schuchardtf980c992018-11-18 17:58:50 +01001495 gd->fdt_blob = map_sysmem
1496 (env_get_ulong("fdtcontroladdr", 16,
1497 (unsigned long)map_to_sysmem(gd->fdt_blob)), 0);
Simon Glassb45122f2015-02-27 22:06:34 -07001498# endif
Jean-Jacques Hiblot2f57c952017-09-15 12:57:32 +02001499
1500# if CONFIG_IS_ENABLED(MULTI_DTB_FIT)
1501 /*
1502 * Try and uncompress the blob.
1503 * Unfortunately there is no way to know how big the input blob really
1504 * is. So let us set the maximum input size arbitrarily high. 16MB
1505 * ought to be more than enough for packed DTBs.
1506 */
1507 if (uncompress_blob(gd->fdt_blob, 0x1000000, &fdt_blob) == 0)
1508 gd->fdt_blob = fdt_blob;
1509
1510 /*
1511 * Check if blob is a FIT images containings DTBs.
1512 * If so, pick the most relevant
1513 */
1514 fdt_blob = locate_dtb_in_fit(gd->fdt_blob);
Jean-Jacques Hiblotf1d2bc92018-12-07 14:50:52 +01001515 if (fdt_blob) {
1516 gd->multi_dtb_fit = gd->fdt_blob;
Jean-Jacques Hiblot2f57c952017-09-15 12:57:32 +02001517 gd->fdt_blob = fdt_blob;
Jean-Jacques Hiblotf1d2bc92018-12-07 14:50:52 +01001518 }
1519
Jean-Jacques Hiblot2f57c952017-09-15 12:57:32 +02001520# endif
Simon Glassb45122f2015-02-27 22:06:34 -07001521#endif
Jean-Jacques Hiblot2f57c952017-09-15 12:57:32 +02001522
Simon Glass08793612015-02-27 22:06:35 -07001523 return fdtdec_prepare_fdt();
Simon Glassb45122f2015-02-27 22:06:34 -07001524}
1525
Jean-Jacques Hiblotf1d2bc92018-12-07 14:50:52 +01001526#if CONFIG_IS_ENABLED(MULTI_DTB_FIT)
1527int fdtdec_resetup(int *rescan)
1528{
1529 void *fdt_blob;
1530
1531 /*
1532 * If the current DTB is part of a compressed FIT image,
1533 * try to locate the best match from the uncompressed
1534 * FIT image stillpresent there. Save the time and space
1535 * required to uncompress it again.
1536 */
1537 if (gd->multi_dtb_fit) {
1538 fdt_blob = locate_dtb_in_fit(gd->multi_dtb_fit);
1539
1540 if (fdt_blob == gd->fdt_blob) {
1541 /*
1542 * The best match did not change. no need to tear down
1543 * the DM and rescan the fdt.
1544 */
1545 *rescan = 0;
1546 return 0;
1547 }
1548
1549 *rescan = 1;
1550 gd->fdt_blob = fdt_blob;
1551 return fdtdec_prepare_fdt();
1552 }
1553
1554 /*
1555 * If multi_dtb_fit is NULL, it means that blob appended to u-boot is
1556 * not a FIT image containings DTB, but a single DTB. There is no need
1557 * to teard down DM and rescan the DT in this case.
1558 */
1559 *rescan = 0;
1560 return 0;
1561}
1562#endif
1563
Michael Pratt90c08fa2018-06-11 13:07:09 -06001564#ifdef CONFIG_NR_DRAM_BANKS
1565int fdtdec_decode_ram_size(const void *blob, const char *area, int board_id,
1566 phys_addr_t *basep, phys_size_t *sizep, bd_t *bd)
1567{
1568 int addr_cells, size_cells;
1569 const u32 *cell, *end;
1570 u64 total_size, size, addr;
1571 int node, child;
1572 bool auto_size;
1573 int bank;
1574 int len;
1575
1576 debug("%s: board_id=%d\n", __func__, board_id);
1577 if (!area)
1578 area = "/memory";
1579 node = fdt_path_offset(blob, area);
1580 if (node < 0) {
1581 debug("No %s node found\n", area);
1582 return -ENOENT;
1583 }
1584
1585 cell = fdt_getprop(blob, node, "reg", &len);
1586 if (!cell) {
1587 debug("No reg property found\n");
1588 return -ENOENT;
1589 }
1590
1591 addr_cells = fdt_address_cells(blob, node);
1592 size_cells = fdt_size_cells(blob, node);
1593
1594 /* Check the board id and mask */
1595 for (child = fdt_first_subnode(blob, node);
1596 child >= 0;
1597 child = fdt_next_subnode(blob, child)) {
1598 int match_mask, match_value;
1599
1600 match_mask = fdtdec_get_int(blob, child, "match-mask", -1);
1601 match_value = fdtdec_get_int(blob, child, "match-value", -1);
1602
1603 if (match_value >= 0 &&
1604 ((board_id & match_mask) == match_value)) {
1605 /* Found matching mask */
1606 debug("Found matching mask %d\n", match_mask);
1607 node = child;
1608 cell = fdt_getprop(blob, node, "reg", &len);
1609 if (!cell) {
1610 debug("No memory-banks property found\n");
1611 return -EINVAL;
1612 }
1613 break;
1614 }
1615 }
1616 /* Note: if no matching subnode was found we use the parent node */
1617
1618 if (bd) {
1619 memset(bd->bi_dram, '\0', sizeof(bd->bi_dram[0]) *
1620 CONFIG_NR_DRAM_BANKS);
1621 }
1622
1623 auto_size = fdtdec_get_bool(blob, node, "auto-size");
1624
1625 total_size = 0;
1626 end = cell + len / 4 - addr_cells - size_cells;
1627 debug("cell at %p, end %p\n", cell, end);
1628 for (bank = 0; bank < CONFIG_NR_DRAM_BANKS; bank++) {
1629 if (cell > end)
1630 break;
1631 addr = 0;
1632 if (addr_cells == 2)
1633 addr += (u64)fdt32_to_cpu(*cell++) << 32UL;
1634 addr += fdt32_to_cpu(*cell++);
1635 if (bd)
1636 bd->bi_dram[bank].start = addr;
1637 if (basep && !bank)
1638 *basep = (phys_addr_t)addr;
1639
1640 size = 0;
1641 if (size_cells == 2)
1642 size += (u64)fdt32_to_cpu(*cell++) << 32UL;
1643 size += fdt32_to_cpu(*cell++);
1644
1645 if (auto_size) {
1646 u64 new_size;
1647
Masahiro Yamadadee37fc2018-08-06 20:47:40 +09001648 debug("Auto-sizing %llx, size %llx: ", addr, size);
Michael Pratt90c08fa2018-06-11 13:07:09 -06001649 new_size = get_ram_size((long *)(uintptr_t)addr, size);
1650 if (new_size == size) {
1651 debug("OK\n");
1652 } else {
Masahiro Yamadadee37fc2018-08-06 20:47:40 +09001653 debug("sized to %llx\n", new_size);
Michael Pratt90c08fa2018-06-11 13:07:09 -06001654 size = new_size;
1655 }
1656 }
1657
1658 if (bd)
1659 bd->bi_dram[bank].size = size;
1660 total_size += size;
1661 }
1662
Masahiro Yamadadee37fc2018-08-06 20:47:40 +09001663 debug("Memory size %llu\n", total_size);
Michael Pratt90c08fa2018-06-11 13:07:09 -06001664 if (sizep)
1665 *sizep = (phys_size_t)total_size;
1666
1667 return 0;
1668}
1669#endif /* CONFIG_NR_DRAM_BANKS */
1670
Simon Glassb45122f2015-02-27 22:06:34 -07001671#endif /* !USE_HOSTCC */