2 * Copyright 2009-2010 Freescale Semiconductor, Inc.
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
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.
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.
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,
28 #include <fdt_support.h>
30 #if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)
31 static int ft_del_cpuhandle(void *blob, int cpuhandle)
33 int off, ret = -FDT_ERR_NOTFOUND;
35 /* if we find a match, we'll delete at it which point the offsets are
36 * invalid so we start over from the beginning
38 off = fdt_node_offset_by_prop_value(blob, -1, "cpu-handle",
40 while (off != -FDT_ERR_NOTFOUND) {
41 fdt_delprop(blob, off, "cpu-handle");
43 off = fdt_node_offset_by_prop_value(blob, -1, "cpu-handle",
50 void ft_fixup_num_cores(void *blob) {
51 int off, num_cores, del_cores;
54 num_cores = cpu_numcores();
56 off = fdt_node_offset_by_prop_value(blob, -1, "device_type", "cpu", 4);
57 while (off != -FDT_ERR_NOTFOUND) {
58 u32 *reg = (u32 *)fdt_getprop(blob, off, "reg", 0);
60 if (*reg > num_cores-1) {
61 int ph = fdt_get_phandle(blob, off);
63 /* Delete the cpu node once there are no cpu handles */
64 if (-FDT_ERR_NOTFOUND == ft_del_cpuhandle(blob, ph)) {
65 fdt_del_node(blob, off);
68 /* either we deleted some cpu handles or the cpu node
69 * so we reset the offset back to the start since we
70 * can't trust the offsets anymore
74 off = fdt_node_offset_by_prop_value(blob, off,
75 "device_type", "cpu", 4);
77 debug ("%x core system found\n", num_cores);
78 debug ("deleted %d extra core entry entries from device tree\n",
81 #endif /* defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx) */
83 #ifdef CONFIG_HAS_FSL_DR_USB
84 void fdt_fixup_dr_usb(void *blob, bd_t *bd)
88 const char *compat = "fsl-usb2-dr";
89 const char *prop_mode = "dr_mode";
90 const char *prop_type = "phy_type";
94 mode = getenv("usb_dr_mode");
95 type = getenv("usb_phy_type");
99 node_offset = fdt_node_offset_by_compatible(blob, 0, compat);
100 if (node_offset < 0) {
101 printf("WARNING: could not find compatible node %s: %s.\n",
102 compat, fdt_strerror(node_offset));
107 err = fdt_setprop(blob, node_offset, prop_mode, mode,
110 printf("WARNING: could not set %s for %s: %s.\n",
111 prop_mode, compat, fdt_strerror(err));
115 err = fdt_setprop(blob, node_offset, prop_type, type,
118 printf("WARNING: could not set %s for %s: %s.\n",
119 prop_type, compat, fdt_strerror(err));
122 #endif /* CONFIG_HAS_FSL_DR_USB */
125 * update crypto node properties to a specified revision of the SEC
126 * called with sec_rev == 0 if not on an E processor
128 #if CONFIG_SYS_FSL_SEC_COMPAT == 2 /* SEC 2.x/3.x */
129 void fdt_fixup_crypto_node(void *blob, int sec_rev)
131 const struct sec_rev_prop {
134 u32 channel_fifo_len;
136 u32 descriptor_types_mask;
137 } sec_rev_prop_list [] = {
138 { 0x0200, 4, 24, 0x07e, 0x01010ebf }, /* SEC 2.0 */
139 { 0x0201, 4, 24, 0x0fe, 0x012b0ebf }, /* SEC 2.1 */
140 { 0x0202, 1, 24, 0x04c, 0x0122003f }, /* SEC 2.2 */
141 { 0x0204, 4, 24, 0x07e, 0x012b0ebf }, /* SEC 2.4 */
142 { 0x0300, 4, 24, 0x9fe, 0x03ab0ebf }, /* SEC 3.0 */
143 { 0x0301, 4, 24, 0xbfe, 0x03ab0ebf }, /* SEC 3.1 */
144 { 0x0303, 4, 24, 0x97c, 0x03a30abf }, /* SEC 3.3 */
146 char compat_strlist[ARRAY_SIZE(sec_rev_prop_list) *
147 sizeof("fsl,secX.Y")];
148 int crypto_node, sec_idx, err;
152 /* locate crypto node based on lowest common compatible */
153 crypto_node = fdt_node_offset_by_compatible(blob, -1, "fsl,sec2.0");
154 if (crypto_node == -FDT_ERR_NOTFOUND)
157 /* delete it if not on an E-processor */
158 if (crypto_node > 0 && !sec_rev) {
159 fdt_del_node(blob, crypto_node);
163 /* else we got called for possible uprev */
164 for (sec_idx = 0; sec_idx < ARRAY_SIZE(sec_rev_prop_list); sec_idx++)
165 if (sec_rev_prop_list[sec_idx].sec_rev == sec_rev)
168 if (sec_idx == ARRAY_SIZE(sec_rev_prop_list)) {
169 puts("warning: unknown SEC revision number\n");
173 val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].num_channels);
174 err = fdt_setprop(blob, crypto_node, "fsl,num-channels", &val, 4);
176 printf("WARNING: could not set crypto property: %s\n",
179 val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].descriptor_types_mask);
180 err = fdt_setprop(blob, crypto_node, "fsl,descriptor-types-mask", &val, 4);
182 printf("WARNING: could not set crypto property: %s\n",
185 val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].exec_units_mask);
186 err = fdt_setprop(blob, crypto_node, "fsl,exec-units-mask", &val, 4);
188 printf("WARNING: could not set crypto property: %s\n",
191 val = cpu_to_fdt32(sec_rev_prop_list[sec_idx].channel_fifo_len);
192 err = fdt_setprop(blob, crypto_node, "fsl,channel-fifo-len", &val, 4);
194 printf("WARNING: could not set crypto property: %s\n",
198 while (sec_idx >= 0) {
199 p = compat_strlist + val;
200 val += sprintf(p, "fsl,sec%d.%d",
201 (sec_rev_prop_list[sec_idx].sec_rev & 0xff00) >> 8,
202 sec_rev_prop_list[sec_idx].sec_rev & 0x00ff) + 1;
205 err = fdt_setprop(blob, crypto_node, "compatible", &compat_strlist, val);
207 printf("WARNING: could not set crypto property: %s\n",
210 #elif CONFIG_SYS_FSL_SEC_COMPAT >= 4 /* SEC4 */
211 void fdt_fixup_crypto_node(void *blob, int sec_rev)
214 fdt_del_node_and_alias(blob, "crypto");