2 * Copyright 2007 Freescale Semiconductor, Inc.
5 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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>
29 #include <asm/processor.h>
31 DECLARE_GLOBAL_DATA_PTR;
33 extern void ft_qe_setup(void *blob);
38 void ft_fixup_cpu(void *blob, u64 memory_limit)
41 ulong spin_tbl_addr = get_spin_addr();
42 u32 bootpg, id = get_my_id();
44 /* if we have 4G or more of memory, put the boot page at 4Gb-4k */
45 if ((u64)gd->ram_size > 0xfffff000)
48 bootpg = gd->ram_size - 4096;
50 off = fdt_node_offset_by_prop_value(blob, -1, "device_type", "cpu", 4);
51 while (off != -FDT_ERR_NOTFOUND) {
52 u32 *reg = (u32 *)fdt_getprop(blob, off, "reg", 0);
56 fdt_setprop_string(blob, off, "status", "okay");
58 u64 val = *reg * SIZE_BOOT_ENTRY + spin_tbl_addr;
59 val = cpu_to_fdt32(val);
60 fdt_setprop_string(blob, off, "status",
62 fdt_setprop_string(blob, off, "enable-method",
64 fdt_setprop(blob, off, "cpu-release-addr",
68 printf ("cpu NULL\n");
70 off = fdt_node_offset_by_prop_value(blob, off,
71 "device_type", "cpu", 4);
74 /* Reserve the boot page so OSes dont use it */
75 if ((u64)bootpg < memory_limit) {
76 off = fdt_add_mem_rsv(blob, bootpg, (u64)4096);
78 printf("%s: %s\n", __FUNCTION__, fdt_strerror(off));
83 #define ft_fixup_l3cache(x, y)
85 #if defined(CONFIG_L2_CACHE)
86 /* return size in kilobytes */
87 static inline u32 l2cache_size(void)
89 volatile ccsr_l2cache_t *l2cache = (void *)CONFIG_SYS_MPC85xx_L2_ADDR;
90 volatile u32 l2siz_field = (l2cache->l2ctl >> 28) & 0x3;
91 u32 ver = SVR_SOC_VER(get_svr());
93 switch (l2siz_field) {
97 if (ver == SVR_8540 || ver == SVR_8560 ||
98 ver == SVR_8541 || ver == SVR_8541_E ||
99 ver == SVR_8555 || ver == SVR_8555_E)
105 if (ver == SVR_8540 || ver == SVR_8560 ||
106 ver == SVR_8541 || ver == SVR_8541_E ||
107 ver == SVR_8555 || ver == SVR_8555_E)
120 static inline void ft_fixup_l2cache(void *blob)
124 struct cpu_type *cpu = identify_cpu(SVR_SOC_VER(get_svr()));
127 const u32 line_size = 32;
128 const u32 num_ways = 8;
129 const u32 size = l2cache_size() * 1024;
130 const u32 num_sets = size / (line_size * num_ways);
132 off = fdt_node_offset_by_prop_value(blob, -1, "device_type", "cpu", 4);
134 debug("no cpu node fount\n");
138 ph = (u32 *)fdt_getprop(blob, off, "next-level-cache", 0);
141 debug("no next-level-cache property\n");
145 off = fdt_node_offset_by_phandle(blob, *ph);
147 printf("%s: %s\n", __func__, fdt_strerror(off));
152 len = sprintf(compat_buf, "fsl,mpc%s-l2-cache-controller",
154 sprintf(&compat_buf[len + 1], "cache");
156 fdt_setprop(blob, off, "cache-unified", NULL, 0);
157 fdt_setprop_cell(blob, off, "cache-block-size", line_size);
158 fdt_setprop_cell(blob, off, "cache-size", size);
159 fdt_setprop_cell(blob, off, "cache-sets", num_sets);
160 fdt_setprop_cell(blob, off, "cache-level", 2);
161 fdt_setprop(blob, off, "compatible", compat_buf, sizeof(compat_buf));
163 /* we dont bother w/L3 since no platform of this type has one */
165 #elif defined(CONFIG_BACKSIDE_L2_CACHE)
166 static inline void ft_fixup_l2cache(void *blob)
168 int off, l2_off, l3_off = -1;
170 u32 l2cfg0 = mfspr(SPRN_L2CFG0);
171 u32 size, line_size, num_ways, num_sets;
173 size = (l2cfg0 & 0x3fff) * 64 * 1024;
174 num_ways = ((l2cfg0 >> 14) & 0x1f) + 1;
175 line_size = (((l2cfg0 >> 23) & 0x3) + 1) * 32;
176 num_sets = size / (line_size * num_ways);
178 off = fdt_node_offset_by_prop_value(blob, -1, "device_type", "cpu", 4);
180 while (off != -FDT_ERR_NOTFOUND) {
181 ph = (u32 *)fdt_getprop(blob, off, "next-level-cache", 0);
184 debug("no next-level-cache property\n");
188 l2_off = fdt_node_offset_by_phandle(blob, *ph);
190 printf("%s: %s\n", __func__, fdt_strerror(off));
194 fdt_setprop(blob, l2_off, "cache-unified", NULL, 0);
195 fdt_setprop_cell(blob, l2_off, "cache-block-size", line_size);
196 fdt_setprop_cell(blob, l2_off, "cache-size", size);
197 fdt_setprop_cell(blob, l2_off, "cache-sets", num_sets);
198 fdt_setprop_cell(blob, l2_off, "cache-level", 2);
199 fdt_setprop(blob, l2_off, "compatible", "cache", 6);
202 ph = (u32 *)fdt_getprop(blob, l2_off, "next-level-cache", 0);
205 debug("no next-level-cache property\n");
211 off = fdt_node_offset_by_prop_value(blob, off,
212 "device_type", "cpu", 4);
215 l3_off = fdt_node_offset_by_phandle(blob, l3_off);
217 printf("%s: %s\n", __func__, fdt_strerror(off));
220 ft_fixup_l3cache(blob, l3_off);
224 #define ft_fixup_l2cache(x)
227 static inline void ft_fixup_cache(void *blob)
231 off = fdt_node_offset_by_prop_value(blob, -1, "device_type", "cpu", 4);
233 while (off != -FDT_ERR_NOTFOUND) {
234 u32 l1cfg0 = mfspr(SPRN_L1CFG0);
235 u32 l1cfg1 = mfspr(SPRN_L1CFG1);
236 u32 isize, iline_size, inum_sets, inum_ways;
237 u32 dsize, dline_size, dnum_sets, dnum_ways;
240 dsize = (l1cfg0 & 0x7ff) * 1024;
241 dnum_ways = ((l1cfg0 >> 11) & 0xff) + 1;
242 dline_size = (((l1cfg0 >> 23) & 0x3) + 1) * 32;
243 dnum_sets = dsize / (dline_size * dnum_ways);
245 fdt_setprop_cell(blob, off, "d-cache-block-size", dline_size);
246 fdt_setprop_cell(blob, off, "d-cache-size", dsize);
247 fdt_setprop_cell(blob, off, "d-cache-sets", dnum_sets);
250 isize = (l1cfg1 & 0x7ff) * 1024;
251 inum_ways = ((l1cfg1 >> 11) & 0xff) + 1;
252 iline_size = (((l1cfg1 >> 23) & 0x3) + 1) * 32;
253 inum_sets = isize / (iline_size * inum_ways);
255 fdt_setprop_cell(blob, off, "i-cache-block-size", iline_size);
256 fdt_setprop_cell(blob, off, "i-cache-size", isize);
257 fdt_setprop_cell(blob, off, "i-cache-sets", inum_sets);
259 off = fdt_node_offset_by_prop_value(blob, off,
260 "device_type", "cpu", 4);
263 ft_fixup_l2cache(blob);
267 void fdt_add_enet_stashing(void *fdt)
269 do_fixup_by_compat(fdt, "gianfar", "bd-stash", NULL, 0, 1);
271 do_fixup_by_compat_u32(fdt, "gianfar", "rx-stash-len", 96, 1);
273 do_fixup_by_compat_u32(fdt, "gianfar", "rx-stash-idx", 0, 1);
276 void ft_cpu_setup(void *blob, bd_t *bd)
282 /* delete crypto node if not on an E-processor */
283 if (!IS_E_PROCESSOR(get_svr()))
284 fdt_fixup_crypto_node(blob, 0);
286 #if defined(CONFIG_HAS_ETH0) || defined(CONFIG_HAS_ETH1) ||\
287 defined(CONFIG_HAS_ETH2) || defined(CONFIG_HAS_ETH3)
288 fdt_fixup_ethernet(blob);
290 fdt_add_enet_stashing(blob);
293 do_fixup_by_prop_u32(blob, "device_type", "cpu", 4,
294 "timebase-frequency", bd->bi_busfreq / 8, 1);
295 do_fixup_by_prop_u32(blob, "device_type", "cpu", 4,
296 "bus-frequency", bd->bi_busfreq, 1);
297 get_sys_info(&sysinfo);
298 off = fdt_node_offset_by_prop_value(blob, -1, "device_type", "cpu", 4);
299 while (off != -FDT_ERR_NOTFOUND) {
300 u32 *reg = (u32 *)fdt_getprop(blob, off, "reg", 0);
301 val = cpu_to_fdt32(sysinfo.freqProcessor[*reg]);
302 fdt_setprop(blob, off, "clock-frequency", &val, 4);
303 off = fdt_node_offset_by_prop_value(blob, off, "device_type",
306 do_fixup_by_prop_u32(blob, "device_type", "soc", 4,
307 "bus-frequency", bd->bi_busfreq, 1);
309 do_fixup_by_compat_u32(blob, "fsl,pq3-localbus",
310 "bus-frequency", gd->lbc_clk, 1);
311 do_fixup_by_compat_u32(blob, "fsl,elbc",
312 "bus-frequency", gd->lbc_clk, 1);
317 #ifdef CONFIG_SYS_NS16550
318 do_fixup_by_compat_u32(blob, "ns16550",
319 "clock-frequency", CONFIG_SYS_NS16550_CLK, 1);
323 do_fixup_by_compat_u32(blob, "fsl,cpm2-scc-uart",
324 "current-speed", bd->bi_baudrate, 1);
326 do_fixup_by_compat_u32(blob, "fsl,cpm2-brg",
327 "clock-frequency", bd->bi_brgfreq, 1);
330 fdt_fixup_memory(blob, (u64)bd->bi_memstart, (u64)bd->bi_memsize);
333 ft_fixup_cpu(blob, (u64)bd->bi_memstart + (u64)bd->bi_memsize);
336 ft_fixup_cache(blob);