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Poonam Aggrwal4ca72ae2009-09-02 19:40:36 +05301/*
Kumar Gala8975d7a2010-12-30 12:09:53 -06002 * Copyright 2009-2011 Freescale Semiconductor, Inc.
Poonam Aggrwal4ca72ae2009-09-02 19:40:36 +05303 *
Stefan Roese88fbf932010-04-15 16:07:28 +02004 * This file is derived from arch/powerpc/cpu/mpc85xx/cpu.c and
5 * arch/powerpc/cpu/mpc86xx/cpu.c. Basically this file contains
Peter Tyser29514c72010-04-12 22:28:09 -05006 * cpu specific common code for 85xx/86xx processors.
Poonam Aggrwal4ca72ae2009-09-02 19:40:36 +05307 * 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
26#include <common.h>
27#include <libfdt.h>
28#include <fdt_support.h>
Kumar Gala819a4792010-06-09 22:33:53 -050029#include <asm/mp.h>
Kumar Gala8975d7a2010-12-30 12:09:53 -060030#include <asm/fsl_serdes.h>
Andy Fleming7832a462011-04-13 00:37:12 -050031#include <phy.h>
Ramneek Mehresh7f548e02011-06-08 17:14:20 +053032#include <hwconfig.h>
Kumar Gala3725f552011-07-29 08:51:26 -050033
34#define FSL_MAX_NUM_USB_CTRLS 2
Poonam Aggrwal4ca72ae2009-09-02 19:40:36 +053035
Kumar Gala819a4792010-06-09 22:33:53 -050036#if defined(CONFIG_MP) && (defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx))
Kumar Galaa24926d2010-06-09 13:14:28 -050037static int ft_del_cpuhandle(void *blob, int cpuhandle)
38{
39 int off, ret = -FDT_ERR_NOTFOUND;
40
41 /* if we find a match, we'll delete at it which point the offsets are
42 * invalid so we start over from the beginning
43 */
44 off = fdt_node_offset_by_prop_value(blob, -1, "cpu-handle",
45 &cpuhandle, 4);
46 while (off != -FDT_ERR_NOTFOUND) {
47 fdt_delprop(blob, off, "cpu-handle");
48 ret = 1;
49 off = fdt_node_offset_by_prop_value(blob, -1, "cpu-handle",
50 &cpuhandle, 4);
51 }
52
53 return ret;
54}
55
Poonam Aggrwal4ca72ae2009-09-02 19:40:36 +053056void ft_fixup_num_cores(void *blob) {
57 int off, num_cores, del_cores;
58
59 del_cores = 0;
60 num_cores = cpu_numcores();
61
62 off = fdt_node_offset_by_prop_value(blob, -1, "device_type", "cpu", 4);
63 while (off != -FDT_ERR_NOTFOUND) {
64 u32 *reg = (u32 *)fdt_getprop(blob, off, "reg", 0);
65
Kumar Gala819a4792010-06-09 22:33:53 -050066 if ((*reg > num_cores-1) || (is_core_disabled(*reg))) {
Kumar Galaa24926d2010-06-09 13:14:28 -050067 int ph = fdt_get_phandle(blob, off);
68
69 /* Delete the cpu node once there are no cpu handles */
70 if (-FDT_ERR_NOTFOUND == ft_del_cpuhandle(blob, ph)) {
71 fdt_del_node(blob, off);
72 del_cores++;
73 }
74 /* either we deleted some cpu handles or the cpu node
75 * so we reset the offset back to the start since we
76 * can't trust the offsets anymore
77 */
Poonam Aggrwal4ca72ae2009-09-02 19:40:36 +053078 off = -1;
79 }
80 off = fdt_node_offset_by_prop_value(blob, off,
81 "device_type", "cpu", 4);
82 }
83 debug ("%x core system found\n", num_cores);
84 debug ("deleted %d extra core entry entries from device tree\n",
85 del_cores);
86}
Kim Phillips6578bae2010-05-28 08:00:14 +000087#endif /* defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx) */
88
89#ifdef CONFIG_HAS_FSL_DR_USB
Ramneek Mehresh7f548e02011-06-08 17:14:20 +053090static void fdt_fixup_usb_mode_phy_type(void *blob, const char *mode,
91 const char *phy_type)
Kim Phillips6578bae2010-05-28 08:00:14 +000092{
Kim Phillips6578bae2010-05-28 08:00:14 +000093 const char *compat = "fsl-usb2-dr";
94 const char *prop_mode = "dr_mode";
95 const char *prop_type = "phy_type";
Ramneek Mehresh7f548e02011-06-08 17:14:20 +053096 static int start_offset = -1;
Kim Phillips6578bae2010-05-28 08:00:14 +000097 int node_offset;
98 int err;
99
Ramneek Mehresh7f548e02011-06-08 17:14:20 +0530100 node_offset = fdt_node_offset_by_compatible(blob,
101 start_offset, compat);
Kim Phillips6578bae2010-05-28 08:00:14 +0000102 if (node_offset < 0) {
103 printf("WARNING: could not find compatible node %s: %s.\n",
104 compat, fdt_strerror(node_offset));
105 return;
106 }
107
108 if (mode) {
109 err = fdt_setprop(blob, node_offset, prop_mode, mode,
110 strlen(mode) + 1);
111 if (err < 0)
112 printf("WARNING: could not set %s for %s: %s.\n",
113 prop_mode, compat, fdt_strerror(err));
114 }
115
Ramneek Mehresh7f548e02011-06-08 17:14:20 +0530116 if (phy_type) {
117 err = fdt_setprop(blob, node_offset, prop_type, phy_type,
118 strlen(phy_type) + 1);
Kim Phillips6578bae2010-05-28 08:00:14 +0000119 if (err < 0)
120 printf("WARNING: could not set %s for %s: %s.\n",
121 prop_type, compat, fdt_strerror(err));
122 }
Ramneek Mehresh7f548e02011-06-08 17:14:20 +0530123
124 start_offset = node_offset;
125}
126
127void fdt_fixup_dr_usb(void *blob, bd_t *bd)
128{
129 const char *modes[] = { "host", "peripheral", "otg" };
130 const char *phys[] = { "ulpi", "umti" };
131 const char *mode = NULL;
132 const char *phy_type = NULL;
133 char usb1_defined = 0;
134 char str[5];
135 int i, j;
136
Kumar Gala3725f552011-07-29 08:51:26 -0500137 for (i = 1; i <= FSL_MAX_NUM_USB_CTRLS; i++) {
Ramneek Mehresh7f548e02011-06-08 17:14:20 +0530138 int mode_idx = -1, phy_idx = -1;
139 sprintf(str, "%s%d", "usb", i);
140 if (hwconfig(str)) {
141 for (j = 0; j < sizeof(modes); j++) {
142 if (hwconfig_subarg_cmp(str, "dr_mode",
143 modes[j])) {
144 mode_idx = j;
145 break;
146 }
147 }
148 for (j = 0; j < sizeof(phys); j++) {
149 if (hwconfig_subarg_cmp(str, "phy_type",
150 phys[j])) {
151 phy_idx = j;
152 break;
153 }
154 }
155 if (mode_idx >= 0)
156 fdt_fixup_usb_mode_phy_type(blob,
157 modes[mode_idx], NULL);
158 if (phy_idx >= 0)
159 fdt_fixup_usb_mode_phy_type(blob,
160 NULL, phys[phy_idx]);
161 if (!strcmp(str, "usb1"))
162 usb1_defined = 1;
163 if (mode_idx < 0 && phy_idx < 0)
164 printf("WARNING: invalid phy or mode\n");
Ramneek Mehresh7f548e02011-06-08 17:14:20 +0530165 }
166 }
167 if (!usb1_defined) {
168 mode = getenv("usb_dr_mode");
169 phy_type = getenv("usb_phy_type");
170 if (!mode && !phy_type)
171 return;
172 fdt_fixup_usb_mode_phy_type(blob, mode, phy_type);
173 }
Kim Phillips6578bae2010-05-28 08:00:14 +0000174}
175#endif /* CONFIG_HAS_FSL_DR_USB */
176
Kim Phillips6578bae2010-05-28 08:00:14 +0000177/*
178 * update crypto node properties to a specified revision of the SEC
Kim Phillipsdef125f2010-06-01 12:24:27 -0500179 * called with sec_rev == 0 if not on an E processor
Kim Phillips6578bae2010-05-28 08:00:14 +0000180 */
Kim Phillipsdef125f2010-06-01 12:24:27 -0500181#if CONFIG_SYS_FSL_SEC_COMPAT == 2 /* SEC 2.x/3.x */
Kim Phillips6578bae2010-05-28 08:00:14 +0000182void fdt_fixup_crypto_node(void *blob, int sec_rev)
183{
184 const struct sec_rev_prop {
185 u32 sec_rev;
186 u32 num_channels;
187 u32 channel_fifo_len;
188 u32 exec_units_mask;
189 u32 descriptor_types_mask;
190 } sec_rev_prop_list [] = {
191 { 0x0200, 4, 24, 0x07e, 0x01010ebf }, /* SEC 2.0 */
192 { 0x0201, 4, 24, 0x0fe, 0x012b0ebf }, /* SEC 2.1 */
193 { 0x0202, 1, 24, 0x04c, 0x0122003f }, /* SEC 2.2 */
194 { 0x0204, 4, 24, 0x07e, 0x012b0ebf }, /* SEC 2.4 */
195 { 0x0300, 4, 24, 0x9fe, 0x03ab0ebf }, /* SEC 3.0 */
196 { 0x0301, 4, 24, 0xbfe, 0x03ab0ebf }, /* SEC 3.1 */
197 { 0x0303, 4, 24, 0x97c, 0x03a30abf }, /* SEC 3.3 */
198 };
199 char compat_strlist[ARRAY_SIZE(sec_rev_prop_list) *
200 sizeof("fsl,secX.Y")];
201 int crypto_node, sec_idx, err;
202 char *p;
203 u32 val;
204
205 /* locate crypto node based on lowest common compatible */
206 crypto_node = fdt_node_offset_by_compatible(blob, -1, "fsl,sec2.0");
207 if (crypto_node == -FDT_ERR_NOTFOUND)
208 return;
209
210 /* delete it if not on an E-processor */
211 if (crypto_node > 0 && !sec_rev) {
212 fdt_del_node(blob, crypto_node);
213 return;
214 }
215
216 /* else we got called for possible uprev */
217 for (sec_idx = 0; sec_idx < ARRAY_SIZE(sec_rev_prop_list); sec_idx++)
218 if (sec_rev_prop_list[sec_idx].sec_rev == sec_rev)
219 break;
220
221 if (sec_idx == ARRAY_SIZE(sec_rev_prop_list)) {
222 puts("warning: unknown SEC revision number\n");
223 return;
224 }
225
226 val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].num_channels);
227 err = fdt_setprop(blob, crypto_node, "fsl,num-channels", &val, 4);
228 if (err < 0)
229 printf("WARNING: could not set crypto property: %s\n",
230 fdt_strerror(err));
231
232 val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].descriptor_types_mask);
233 err = fdt_setprop(blob, crypto_node, "fsl,descriptor-types-mask", &val, 4);
234 if (err < 0)
235 printf("WARNING: could not set crypto property: %s\n",
236 fdt_strerror(err));
237
238 val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].exec_units_mask);
239 err = fdt_setprop(blob, crypto_node, "fsl,exec-units-mask", &val, 4);
240 if (err < 0)
241 printf("WARNING: could not set crypto property: %s\n",
242 fdt_strerror(err));
243
244 val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].channel_fifo_len);
245 err = fdt_setprop(blob, crypto_node, "fsl,channel-fifo-len", &val, 4);
246 if (err < 0)
247 printf("WARNING: could not set crypto property: %s\n",
248 fdt_strerror(err));
249
250 val = 0;
251 while (sec_idx >= 0) {
252 p = compat_strlist + val;
253 val += sprintf(p, "fsl,sec%d.%d",
254 (sec_rev_prop_list[sec_idx].sec_rev & 0xff00) >> 8,
255 sec_rev_prop_list[sec_idx].sec_rev & 0x00ff) + 1;
256 sec_idx--;
257 }
258 err = fdt_setprop(blob, crypto_node, "compatible", &compat_strlist, val);
259 if (err < 0)
260 printf("WARNING: could not set crypto property: %s\n",
261 fdt_strerror(err));
262}
Kim Phillips1b625492010-06-01 12:24:34 -0500263#elif CONFIG_SYS_FSL_SEC_COMPAT >= 4 /* SEC4 */
264void fdt_fixup_crypto_node(void *blob, int sec_rev)
265{
266 if (!sec_rev)
267 fdt_del_node_and_alias(blob, "crypto");
268}
Kim Phillipsdef125f2010-06-01 12:24:27 -0500269#endif
Kumar Gala6bc9fd52010-09-30 09:15:03 -0500270
Andy Fleming7832a462011-04-13 00:37:12 -0500271int fdt_fixup_phy_connection(void *blob, int offset, phy_interface_t phyc)
Kumar Gala6bc9fd52010-09-30 09:15:03 -0500272{
Kumar Gala6bc9fd52010-09-30 09:15:03 -0500273 return fdt_setprop_string(blob, offset, "phy-connection-type",
Andy Fleming7832a462011-04-13 00:37:12 -0500274 phy_string_for_interface(phyc));
Kumar Gala6bc9fd52010-09-30 09:15:03 -0500275}
Kumar Gala8975d7a2010-12-30 12:09:53 -0600276
277#ifdef CONFIG_SYS_SRIO
278void ft_srio_setup(void *blob)
279{
280#ifdef CONFIG_SRIO1
281 if (!is_serdes_configured(SRIO1)) {
282 fdt_del_node_and_alias(blob, "rio0");
283 }
284#else
285 fdt_del_node_and_alias(blob, "rio0");
286#endif
287#ifdef CONFIG_SRIO2
288 if (!is_serdes_configured(SRIO2)) {
289 fdt_del_node_and_alias(blob, "rio1");
290 }
291#else
292 fdt_del_node_and_alias(blob, "rio1");
293#endif
294}
295#endif