fdt.c 8.4 KB

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  1. /*
  2. * Copyright 2009-2011 Freescale Semiconductor, Inc.
  3. *
  4. * This file is derived from arch/powerpc/cpu/mpc85xx/cpu.c and
  5. * arch/powerpc/cpu/mpc86xx/cpu.c. Basically this file contains
  6. * cpu specific common code for 85xx/86xx processors.
  7. * See file CREDITS for list of people who contributed to this
  8. * project.
  9. *
  10. * This program is free software; you can redistribute it and/or
  11. * modify it under the terms of the GNU General Public License as
  12. * published by the Free Software Foundation; either version 2 of
  13. * the License, or (at your option) any later version.
  14. *
  15. * This program is distributed in the hope that it will be useful,
  16. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  18. * GNU General Public License for more details.
  19. *
  20. * You should have received a copy of the GNU General Public License
  21. * along with this program; if not, write to the Free Software
  22. * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  23. * MA 02111-1307 USA
  24. */
  25. #include <common.h>
  26. #include <libfdt.h>
  27. #include <fdt_support.h>
  28. #include <asm/mp.h>
  29. #include <asm/fsl_serdes.h>
  30. #include <phy.h>
  31. #include <hwconfig.h>
  32. #define FSL_MAX_NUM_USB_CTRLS 2
  33. #if defined(CONFIG_MP) && (defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx))
  34. static int ft_del_cpuhandle(void *blob, int cpuhandle)
  35. {
  36. int off, ret = -FDT_ERR_NOTFOUND;
  37. /* if we find a match, we'll delete at it which point the offsets are
  38. * invalid so we start over from the beginning
  39. */
  40. off = fdt_node_offset_by_prop_value(blob, -1, "cpu-handle",
  41. &cpuhandle, 4);
  42. while (off != -FDT_ERR_NOTFOUND) {
  43. fdt_delprop(blob, off, "cpu-handle");
  44. ret = 1;
  45. off = fdt_node_offset_by_prop_value(blob, -1, "cpu-handle",
  46. &cpuhandle, 4);
  47. }
  48. return ret;
  49. }
  50. void ft_fixup_num_cores(void *blob) {
  51. int off, num_cores, del_cores;
  52. del_cores = 0;
  53. num_cores = cpu_numcores();
  54. off = fdt_node_offset_by_prop_value(blob, -1, "device_type", "cpu", 4);
  55. while (off != -FDT_ERR_NOTFOUND) {
  56. u32 *reg = (u32 *)fdt_getprop(blob, off, "reg", 0);
  57. if ((*reg > num_cores-1) || (is_core_disabled(*reg))) {
  58. int ph = fdt_get_phandle(blob, off);
  59. /* Delete the cpu node once there are no cpu handles */
  60. if (-FDT_ERR_NOTFOUND == ft_del_cpuhandle(blob, ph)) {
  61. fdt_del_node(blob, off);
  62. del_cores++;
  63. }
  64. /* either we deleted some cpu handles or the cpu node
  65. * so we reset the offset back to the start since we
  66. * can't trust the offsets anymore
  67. */
  68. off = -1;
  69. }
  70. off = fdt_node_offset_by_prop_value(blob, off,
  71. "device_type", "cpu", 4);
  72. }
  73. debug ("%x core system found\n", num_cores);
  74. debug ("deleted %d extra core entry entries from device tree\n",
  75. del_cores);
  76. }
  77. #endif /* defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx) */
  78. #ifdef CONFIG_HAS_FSL_DR_USB
  79. static void fdt_fixup_usb_mode_phy_type(void *blob, const char *mode,
  80. const char *phy_type)
  81. {
  82. const char *compat = "fsl-usb2-dr";
  83. const char *prop_mode = "dr_mode";
  84. const char *prop_type = "phy_type";
  85. static int start_offset = -1;
  86. int node_offset;
  87. int err;
  88. node_offset = fdt_node_offset_by_compatible(blob,
  89. start_offset, compat);
  90. if (node_offset < 0) {
  91. printf("WARNING: could not find compatible node %s: %s.\n",
  92. compat, fdt_strerror(node_offset));
  93. return;
  94. }
  95. if (mode) {
  96. err = fdt_setprop(blob, node_offset, prop_mode, mode,
  97. strlen(mode) + 1);
  98. if (err < 0)
  99. printf("WARNING: could not set %s for %s: %s.\n",
  100. prop_mode, compat, fdt_strerror(err));
  101. }
  102. if (phy_type) {
  103. err = fdt_setprop(blob, node_offset, prop_type, phy_type,
  104. strlen(phy_type) + 1);
  105. if (err < 0)
  106. printf("WARNING: could not set %s for %s: %s.\n",
  107. prop_type, compat, fdt_strerror(err));
  108. }
  109. start_offset = node_offset;
  110. }
  111. void fdt_fixup_dr_usb(void *blob, bd_t *bd)
  112. {
  113. const char *modes[] = { "host", "peripheral", "otg" };
  114. const char *phys[] = { "ulpi", "umti" };
  115. const char *mode = NULL;
  116. const char *phy_type = NULL;
  117. char usb1_defined = 0;
  118. char str[5];
  119. int i, j;
  120. for (i = 1; i <= FSL_MAX_NUM_USB_CTRLS; i++) {
  121. int mode_idx = -1, phy_idx = -1;
  122. sprintf(str, "%s%d", "usb", i);
  123. if (hwconfig(str)) {
  124. for (j = 0; j < sizeof(modes); j++) {
  125. if (hwconfig_subarg_cmp(str, "dr_mode",
  126. modes[j])) {
  127. mode_idx = j;
  128. break;
  129. }
  130. }
  131. for (j = 0; j < sizeof(phys); j++) {
  132. if (hwconfig_subarg_cmp(str, "phy_type",
  133. phys[j])) {
  134. phy_idx = j;
  135. break;
  136. }
  137. }
  138. if (mode_idx >= 0)
  139. fdt_fixup_usb_mode_phy_type(blob,
  140. modes[mode_idx], NULL);
  141. if (phy_idx >= 0)
  142. fdt_fixup_usb_mode_phy_type(blob,
  143. NULL, phys[phy_idx]);
  144. if (!strcmp(str, "usb1"))
  145. usb1_defined = 1;
  146. if (mode_idx < 0 && phy_idx < 0)
  147. printf("WARNING: invalid phy or mode\n");
  148. }
  149. }
  150. if (!usb1_defined) {
  151. mode = getenv("usb_dr_mode");
  152. phy_type = getenv("usb_phy_type");
  153. if (!mode && !phy_type)
  154. return;
  155. fdt_fixup_usb_mode_phy_type(blob, mode, phy_type);
  156. }
  157. }
  158. #endif /* CONFIG_HAS_FSL_DR_USB */
  159. /*
  160. * update crypto node properties to a specified revision of the SEC
  161. * called with sec_rev == 0 if not on an E processor
  162. */
  163. #if CONFIG_SYS_FSL_SEC_COMPAT == 2 /* SEC 2.x/3.x */
  164. void fdt_fixup_crypto_node(void *blob, int sec_rev)
  165. {
  166. const struct sec_rev_prop {
  167. u32 sec_rev;
  168. u32 num_channels;
  169. u32 channel_fifo_len;
  170. u32 exec_units_mask;
  171. u32 descriptor_types_mask;
  172. } sec_rev_prop_list [] = {
  173. { 0x0200, 4, 24, 0x07e, 0x01010ebf }, /* SEC 2.0 */
  174. { 0x0201, 4, 24, 0x0fe, 0x012b0ebf }, /* SEC 2.1 */
  175. { 0x0202, 1, 24, 0x04c, 0x0122003f }, /* SEC 2.2 */
  176. { 0x0204, 4, 24, 0x07e, 0x012b0ebf }, /* SEC 2.4 */
  177. { 0x0300, 4, 24, 0x9fe, 0x03ab0ebf }, /* SEC 3.0 */
  178. { 0x0301, 4, 24, 0xbfe, 0x03ab0ebf }, /* SEC 3.1 */
  179. { 0x0303, 4, 24, 0x97c, 0x03a30abf }, /* SEC 3.3 */
  180. };
  181. char compat_strlist[ARRAY_SIZE(sec_rev_prop_list) *
  182. sizeof("fsl,secX.Y")];
  183. int crypto_node, sec_idx, err;
  184. char *p;
  185. u32 val;
  186. /* locate crypto node based on lowest common compatible */
  187. crypto_node = fdt_node_offset_by_compatible(blob, -1, "fsl,sec2.0");
  188. if (crypto_node == -FDT_ERR_NOTFOUND)
  189. return;
  190. /* delete it if not on an E-processor */
  191. if (crypto_node > 0 && !sec_rev) {
  192. fdt_del_node(blob, crypto_node);
  193. return;
  194. }
  195. /* else we got called for possible uprev */
  196. for (sec_idx = 0; sec_idx < ARRAY_SIZE(sec_rev_prop_list); sec_idx++)
  197. if (sec_rev_prop_list[sec_idx].sec_rev == sec_rev)
  198. break;
  199. if (sec_idx == ARRAY_SIZE(sec_rev_prop_list)) {
  200. puts("warning: unknown SEC revision number\n");
  201. return;
  202. }
  203. val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].num_channels);
  204. err = fdt_setprop(blob, crypto_node, "fsl,num-channels", &val, 4);
  205. if (err < 0)
  206. printf("WARNING: could not set crypto property: %s\n",
  207. fdt_strerror(err));
  208. val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].descriptor_types_mask);
  209. err = fdt_setprop(blob, crypto_node, "fsl,descriptor-types-mask", &val, 4);
  210. if (err < 0)
  211. printf("WARNING: could not set crypto property: %s\n",
  212. fdt_strerror(err));
  213. val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].exec_units_mask);
  214. err = fdt_setprop(blob, crypto_node, "fsl,exec-units-mask", &val, 4);
  215. if (err < 0)
  216. printf("WARNING: could not set crypto property: %s\n",
  217. fdt_strerror(err));
  218. val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].channel_fifo_len);
  219. err = fdt_setprop(blob, crypto_node, "fsl,channel-fifo-len", &val, 4);
  220. if (err < 0)
  221. printf("WARNING: could not set crypto property: %s\n",
  222. fdt_strerror(err));
  223. val = 0;
  224. while (sec_idx >= 0) {
  225. p = compat_strlist + val;
  226. val += sprintf(p, "fsl,sec%d.%d",
  227. (sec_rev_prop_list[sec_idx].sec_rev & 0xff00) >> 8,
  228. sec_rev_prop_list[sec_idx].sec_rev & 0x00ff) + 1;
  229. sec_idx--;
  230. }
  231. err = fdt_setprop(blob, crypto_node, "compatible", &compat_strlist, val);
  232. if (err < 0)
  233. printf("WARNING: could not set crypto property: %s\n",
  234. fdt_strerror(err));
  235. }
  236. #elif CONFIG_SYS_FSL_SEC_COMPAT >= 4 /* SEC4 */
  237. void fdt_fixup_crypto_node(void *blob, int sec_rev)
  238. {
  239. if (!sec_rev)
  240. fdt_del_node_and_alias(blob, "crypto");
  241. }
  242. #endif
  243. int fdt_fixup_phy_connection(void *blob, int offset, phy_interface_t phyc)
  244. {
  245. return fdt_setprop_string(blob, offset, "phy-connection-type",
  246. phy_string_for_interface(phyc));
  247. }
  248. #ifdef CONFIG_SYS_SRIO
  249. void ft_srio_setup(void *blob)
  250. {
  251. #ifdef CONFIG_SRIO1
  252. if (!is_serdes_configured(SRIO1)) {
  253. fdt_del_node_and_alias(blob, "rio0");
  254. }
  255. #else
  256. fdt_del_node_and_alias(blob, "rio0");
  257. #endif
  258. #ifdef CONFIG_SRIO2
  259. if (!is_serdes_configured(SRIO2)) {
  260. fdt_del_node_and_alias(blob, "rio1");
  261. }
  262. #else
  263. fdt_del_node_and_alias(blob, "rio1");
  264. #endif
  265. }
  266. #endif