2 * Copyright 2007-2011 Freescale Semiconductor, Inc.
5 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
7 * SPDX-License-Identifier: GPL-2.0+
12 #include <fdt_support.h>
13 #include <asm/processor.h>
14 #include <linux/ctype.h>
16 #include <asm/fsl_fdt.h>
17 #include <asm/fsl_portals.h>
19 #ifdef CONFIG_FSL_ESDHC
20 #include <fsl_esdhc.h>
22 #ifdef CONFIG_SYS_DPAA_FMAN
26 DECLARE_GLOBAL_DATA_PTR;
28 extern void ft_qe_setup(void *blob);
29 extern void ft_fixup_num_cores(void *blob);
30 extern void ft_srio_setup(void *blob);
35 void ft_fixup_cpu(void *blob, u64 memory_limit)
38 phys_addr_t spin_tbl_addr = get_spin_phys_addr();
39 u32 bootpg = determine_mp_bootpg(NULL);
41 const char *enable_method;
42 #if defined(T1040_TDM_QUIRK_CCSR_BASE)
44 int tdm_hwconfig_enabled = 0;
45 char buffer[HWCONFIG_BUFFER_SIZE] = {0};
48 off = fdt_node_offset_by_prop_value(blob, -1, "device_type", "cpu", 4);
49 while (off != -FDT_ERR_NOTFOUND) {
50 u32 *reg = (u32 *)fdt_getprop(blob, off, "reg", 0);
53 u32 phys_cpu_id = thread_to_core(*reg);
54 u64 val = phys_cpu_id * SIZE_BOOT_ENTRY + spin_tbl_addr;
55 val = cpu_to_fdt64(val);
57 fdt_setprop_string(blob, off, "status",
60 fdt_setprop_string(blob, off, "status",
64 if (hold_cores_in_reset(0)) {
65 #ifdef CONFIG_FSL_CORENET
66 /* Cores held in reset, use BRR to release */
67 enable_method = "fsl,brr-holdoff";
69 /* Cores held in reset, use EEBPCR to release */
70 enable_method = "fsl,eebpcr-holdoff";
73 /* Cores out of reset and in a spin-loop */
74 enable_method = "spin-table";
76 fdt_setprop(blob, off, "cpu-release-addr",
80 fdt_setprop_string(blob, off, "enable-method",
83 printf ("cpu NULL\n");
85 off = fdt_node_offset_by_prop_value(blob, off,
86 "device_type", "cpu", 4);
89 #if defined(T1040_TDM_QUIRK_CCSR_BASE)
90 #define CONFIG_MEM_HOLE_16M 0x1000000
92 * Extract hwconfig from environment.
93 * Search for tdm entry in hwconfig.
95 ret = getenv_f("hwconfig", buffer, sizeof(buffer));
97 tdm_hwconfig_enabled = hwconfig_f("tdm", buffer);
99 /* Reserve the memory hole created by TDM LAW, so OSes dont use it */
100 if (tdm_hwconfig_enabled) {
101 off = fdt_add_mem_rsv(blob, T1040_TDM_QUIRK_CCSR_BASE,
102 CONFIG_MEM_HOLE_16M);
104 printf("Failed to reserve memory for tdm: %s\n",
109 /* Reserve the boot page so OSes dont use it */
110 if ((u64)bootpg < memory_limit) {
111 off = fdt_add_mem_rsv(blob, bootpg, (u64)4096);
113 printf("Failed to reserve memory for bootpg: %s\n",
117 #ifndef CONFIG_MPC8xxx_DISABLE_BPTR
119 * Reserve the default boot page so OSes dont use it.
120 * The default boot page is always mapped to bootpg above using
121 * boot page translation.
123 if (0xfffff000ull < memory_limit) {
124 off = fdt_add_mem_rsv(blob, 0xfffff000ull, (u64)4096);
126 printf("Failed to reserve memory for 0xfffff000: %s\n",
132 /* Reserve spin table page */
133 if (spin_tbl_addr < memory_limit) {
134 off = fdt_add_mem_rsv(blob,
135 (spin_tbl_addr & ~0xffful), 4096);
137 printf("Failed to reserve memory for spin table: %s\n",
140 #ifdef CONFIG_DEEP_SLEEP
141 #ifdef CONFIG_SPL_MMC_BOOT
142 off = fdt_add_mem_rsv(blob, CONFIG_SYS_MMC_U_BOOT_START,
143 CONFIG_SYS_MMC_U_BOOT_SIZE);
145 printf("Failed to reserve memory for SD deep sleep: %s\n",
147 #elif defined(CONFIG_SPL_SPI_BOOT)
148 off = fdt_add_mem_rsv(blob, CONFIG_SYS_SPI_FLASH_U_BOOT_START,
149 CONFIG_SYS_SPI_FLASH_U_BOOT_SIZE);
151 printf("Failed to reserve memory for SPI deep sleep: %s\n",
158 #ifdef CONFIG_SYS_FSL_CPC
159 static inline void ft_fixup_l3cache(void *blob, int off)
161 u32 line_size, num_ways, size, num_sets;
162 cpc_corenet_t *cpc = (void *)CONFIG_SYS_FSL_CPC_ADDR;
163 u32 cfg0 = in_be32(&cpc->cpccfg0);
165 size = CPC_CFG0_SZ_K(cfg0) * 1024 * CONFIG_SYS_NUM_CPC;
166 num_ways = CPC_CFG0_NUM_WAYS(cfg0);
167 line_size = CPC_CFG0_LINE_SZ(cfg0);
168 num_sets = size / (line_size * num_ways);
170 fdt_setprop(blob, off, "cache-unified", NULL, 0);
171 fdt_setprop_cell(blob, off, "cache-block-size", line_size);
172 fdt_setprop_cell(blob, off, "cache-size", size);
173 fdt_setprop_cell(blob, off, "cache-sets", num_sets);
174 fdt_setprop_cell(blob, off, "cache-level", 3);
175 #ifdef CONFIG_SYS_CACHE_STASHING
176 fdt_setprop_cell(blob, off, "cache-stash-id", 1);
180 #define ft_fixup_l3cache(x, y)
183 #if defined(CONFIG_L2_CACHE)
184 /* return size in kilobytes */
185 static inline u32 l2cache_size(void)
187 volatile ccsr_l2cache_t *l2cache = (void *)CONFIG_SYS_MPC85xx_L2_ADDR;
188 volatile u32 l2siz_field = (l2cache->l2ctl >> 28) & 0x3;
189 u32 ver = SVR_SOC_VER(get_svr());
191 switch (l2siz_field) {
195 if (ver == SVR_8540 || ver == SVR_8560 ||
196 ver == SVR_8541 || ver == SVR_8555)
202 if (ver == SVR_8540 || ver == SVR_8560 ||
203 ver == SVR_8541 || ver == SVR_8555)
216 static inline void ft_fixup_l2cache(void *blob)
220 struct cpu_type *cpu = identify_cpu(SVR_SOC_VER(get_svr()));
222 const u32 line_size = 32;
223 const u32 num_ways = 8;
224 const u32 size = l2cache_size() * 1024;
225 const u32 num_sets = size / (line_size * num_ways);
227 off = fdt_node_offset_by_prop_value(blob, -1, "device_type", "cpu", 4);
229 debug("no cpu node fount\n");
233 ph = (u32 *)fdt_getprop(blob, off, "next-level-cache", 0);
236 debug("no next-level-cache property\n");
240 off = fdt_node_offset_by_phandle(blob, *ph);
242 printf("%s: %s\n", __func__, fdt_strerror(off));
249 if (isdigit(cpu->name[0])) {
250 /* MPCxxxx, where xxxx == 4-digit number */
251 len = sprintf(buf, "fsl,mpc%s-l2-cache-controller",
254 /* Pxxxx or Txxxx, where xxxx == 4-digit number */
255 len = sprintf(buf, "fsl,%c%s-l2-cache-controller",
256 tolower(cpu->name[0]), cpu->name + 1) + 1;
260 * append "cache" after the NULL character that the previous
261 * sprintf wrote. This is how a device tree stores multiple
262 * strings in a property.
264 len += sprintf(buf + len, "cache") + 1;
266 fdt_setprop(blob, off, "compatible", buf, len);
268 fdt_setprop(blob, off, "cache-unified", NULL, 0);
269 fdt_setprop_cell(blob, off, "cache-block-size", line_size);
270 fdt_setprop_cell(blob, off, "cache-size", size);
271 fdt_setprop_cell(blob, off, "cache-sets", num_sets);
272 fdt_setprop_cell(blob, off, "cache-level", 2);
274 /* we dont bother w/L3 since no platform of this type has one */
276 #elif defined(CONFIG_BACKSIDE_L2_CACHE) || \
277 defined(CONFIG_SYS_FSL_QORIQ_CHASSIS2)
278 static inline void ft_fixup_l2cache(void *blob)
280 int off, l2_off, l3_off = -1;
282 #ifdef CONFIG_BACKSIDE_L2_CACHE
283 u32 l2cfg0 = mfspr(SPRN_L2CFG0);
285 struct ccsr_cluster_l2 *l2cache =
286 (struct ccsr_cluster_l2 __iomem *)(CONFIG_SYS_FSL_CLUSTER_1_L2);
287 u32 l2cfg0 = in_be32(&l2cache->l2cfg0);
289 u32 size, line_size, num_ways, num_sets;
292 /* P2040/P2040E has no L2, so dont set any L2 props */
293 if (SVR_SOC_VER(get_svr()) == SVR_P2040)
296 size = (l2cfg0 & 0x3fff) * 64 * 1024;
297 num_ways = ((l2cfg0 >> 14) & 0x1f) + 1;
298 line_size = (((l2cfg0 >> 23) & 0x3) + 1) * 32;
299 num_sets = size / (line_size * num_ways);
301 off = fdt_node_offset_by_prop_value(blob, -1, "device_type", "cpu", 4);
303 while (off != -FDT_ERR_NOTFOUND) {
304 ph = (u32 *)fdt_getprop(blob, off, "next-level-cache", 0);
307 debug("no next-level-cache property\n");
311 l2_off = fdt_node_offset_by_phandle(blob, *ph);
313 printf("%s: %s\n", __func__, fdt_strerror(off));
318 #ifdef CONFIG_SYS_CACHE_STASHING
319 u32 *reg = (u32 *)fdt_getprop(blob, off, "reg", 0);
320 #if defined(CONFIG_SYS_FSL_QORIQ_CHASSIS2) && defined(CONFIG_E6500)
321 /* Only initialize every eighth thread */
322 if (reg && !((*reg) % 8)) {
323 fdt_setprop_cell(blob, l2_off, "cache-stash-id",
324 (*reg / 4) + 32 + 1);
328 fdt_setprop_cell(blob, l2_off, "cache-stash-id",
329 (*reg * 2) + 32 + 1);
334 fdt_setprop(blob, l2_off, "cache-unified", NULL, 0);
335 fdt_setprop_cell(blob, l2_off, "cache-block-size",
337 fdt_setprop_cell(blob, l2_off, "cache-size", size);
338 fdt_setprop_cell(blob, l2_off, "cache-sets", num_sets);
339 fdt_setprop_cell(blob, l2_off, "cache-level", 2);
340 fdt_setprop(blob, l2_off, "compatible", "cache", 6);
344 ph = (u32 *)fdt_getprop(blob, l2_off, "next-level-cache", 0);
347 debug("no next-level-cache property\n");
353 off = fdt_node_offset_by_prop_value(blob, off,
354 "device_type", "cpu", 4);
357 l3_off = fdt_node_offset_by_phandle(blob, l3_off);
359 printf("%s: %s\n", __func__, fdt_strerror(off));
362 ft_fixup_l3cache(blob, l3_off);
366 #define ft_fixup_l2cache(x)
369 static inline void ft_fixup_cache(void *blob)
373 off = fdt_node_offset_by_prop_value(blob, -1, "device_type", "cpu", 4);
375 while (off != -FDT_ERR_NOTFOUND) {
376 u32 l1cfg0 = mfspr(SPRN_L1CFG0);
377 u32 l1cfg1 = mfspr(SPRN_L1CFG1);
378 u32 isize, iline_size, inum_sets, inum_ways;
379 u32 dsize, dline_size, dnum_sets, dnum_ways;
382 dsize = (l1cfg0 & 0x7ff) * 1024;
383 dnum_ways = ((l1cfg0 >> 11) & 0xff) + 1;
384 dline_size = (((l1cfg0 >> 23) & 0x3) + 1) * 32;
385 dnum_sets = dsize / (dline_size * dnum_ways);
387 fdt_setprop_cell(blob, off, "d-cache-block-size", dline_size);
388 fdt_setprop_cell(blob, off, "d-cache-size", dsize);
389 fdt_setprop_cell(blob, off, "d-cache-sets", dnum_sets);
391 #ifdef CONFIG_SYS_CACHE_STASHING
393 u32 *reg = (u32 *)fdt_getprop(blob, off, "reg", 0);
395 fdt_setprop_cell(blob, off, "cache-stash-id",
396 (*reg * 2) + 32 + 0);
401 isize = (l1cfg1 & 0x7ff) * 1024;
402 inum_ways = ((l1cfg1 >> 11) & 0xff) + 1;
403 iline_size = (((l1cfg1 >> 23) & 0x3) + 1) * 32;
404 inum_sets = isize / (iline_size * inum_ways);
406 fdt_setprop_cell(blob, off, "i-cache-block-size", iline_size);
407 fdt_setprop_cell(blob, off, "i-cache-size", isize);
408 fdt_setprop_cell(blob, off, "i-cache-sets", inum_sets);
410 off = fdt_node_offset_by_prop_value(blob, off,
411 "device_type", "cpu", 4);
414 ft_fixup_l2cache(blob);
418 void fdt_add_enet_stashing(void *fdt)
420 do_fixup_by_compat(fdt, "gianfar", "bd-stash", NULL, 0, 1);
422 do_fixup_by_compat_u32(fdt, "gianfar", "rx-stash-len", 96, 1);
424 do_fixup_by_compat_u32(fdt, "gianfar", "rx-stash-idx", 0, 1);
425 do_fixup_by_compat(fdt, "fsl,etsec2", "bd-stash", NULL, 0, 1);
426 do_fixup_by_compat_u32(fdt, "fsl,etsec2", "rx-stash-len", 96, 1);
427 do_fixup_by_compat_u32(fdt, "fsl,etsec2", "rx-stash-idx", 0, 1);
430 #if defined(CONFIG_SYS_DPAA_FMAN) || defined(CONFIG_SYS_DPAA_PME)
431 #ifdef CONFIG_SYS_DPAA_FMAN
432 static void ft_fixup_clks(void *blob, const char *compat, u32 offset,
435 phys_addr_t phys = offset + CONFIG_SYS_CCSRBAR_PHYS;
436 int off = fdt_node_offset_by_compat_reg(blob, compat, phys);
439 off = fdt_setprop_cell(blob, off, "clock-frequency", freq);
441 printf("WARNING enable to set clock-frequency "
442 "for %s: %s\n", compat, fdt_strerror(off));
447 static void ft_fixup_dpaa_clks(void *blob)
451 get_sys_info(&sysinfo);
452 #ifdef CONFIG_SYS_DPAA_FMAN
453 ft_fixup_clks(blob, "fsl,fman", CONFIG_SYS_FSL_FM1_OFFSET,
454 sysinfo.freq_fman[0]);
456 #if (CONFIG_SYS_NUM_FMAN == 2)
457 ft_fixup_clks(blob, "fsl,fman", CONFIG_SYS_FSL_FM2_OFFSET,
458 sysinfo.freq_fman[1]);
462 #ifdef CONFIG_SYS_DPAA_QBMAN
463 do_fixup_by_compat_u32(blob, "fsl,qman",
464 "clock-frequency", sysinfo.freq_qman, 1);
467 #ifdef CONFIG_SYS_DPAA_PME
468 do_fixup_by_compat_u32(blob, "fsl,pme",
469 "clock-frequency", sysinfo.freq_pme, 1);
473 #define ft_fixup_dpaa_clks(x)
477 static void ft_fixup_qe_snum(void *blob)
481 svr = mfspr(SPRN_SVR);
482 if (SVR_SOC_VER(svr) == SVR_8569) {
483 if(IS_SVR_REV(svr, 1, 0))
484 do_fixup_by_compat_u32(blob, "fsl,qe",
485 "fsl,qe-num-snums", 46, 1);
487 do_fixup_by_compat_u32(blob, "fsl,qe",
488 "fsl,qe-num-snums", 76, 1);
493 #if defined(CONFIG_ARCH_P4080)
494 static void fdt_fixup_usb(void *fdt)
496 ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
497 u32 rcwsr11 = in_be32(&gur->rcwsr[11]);
500 off = fdt_node_offset_by_compatible(fdt, -1, "fsl,mpc85xx-usb2-mph");
501 if ((rcwsr11 & FSL_CORENET_RCWSR11_EC1) !=
502 FSL_CORENET_RCWSR11_EC1_FM1_USB1)
503 fdt_status_disabled(fdt, off);
505 off = fdt_node_offset_by_compatible(fdt, -1, "fsl,mpc85xx-usb2-dr");
506 if ((rcwsr11 & FSL_CORENET_RCWSR11_EC2) !=
507 FSL_CORENET_RCWSR11_EC2_USB2)
508 fdt_status_disabled(fdt, off);
511 #define fdt_fixup_usb(x)
514 #if defined(CONFIG_ARCH_T2080) || defined(CONFIG_PPC_T4240) || \
515 defined(CONFIG_ARCH_T4160) || defined(CONFIG_PPC_T4080)
516 void fdt_fixup_dma3(void *blob)
518 /* the 3rd DMA is not functional if SRIO2 is chosen */
520 ccsr_gur_t __iomem *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
522 #define CONFIG_SYS_ELO3_DMA3 (0xffe000000 + 0x102300)
523 #if defined(CONFIG_ARCH_T2080)
524 u32 srds_prtcl_s2 = in_be32(&gur->rcwsr[4]) &
525 FSL_CORENET2_RCWSR4_SRDS2_PRTCL;
526 srds_prtcl_s2 >>= FSL_CORENET2_RCWSR4_SRDS2_PRTCL_SHIFT;
528 switch (srds_prtcl_s2) {
532 #elif defined(CONFIG_PPC_T4240) || defined(CONFIG_ARCH_T4160) || \
533 defined(CONFIG_PPC_T4080)
534 u32 srds_prtcl_s4 = in_be32(&gur->rcwsr[4]) &
535 FSL_CORENET2_RCWSR4_SRDS4_PRTCL;
536 srds_prtcl_s4 >>= FSL_CORENET2_RCWSR4_SRDS4_PRTCL_SHIFT;
538 switch (srds_prtcl_s4) {
544 nodeoff = fdt_node_offset_by_compat_reg(blob, "fsl,elo3-dma",
545 CONFIG_SYS_ELO3_DMA3);
547 fdt_status_disabled(blob, nodeoff);
549 printf("WARNING: unable to disable dma3\n");
556 #define fdt_fixup_dma3(x)
559 #if defined(CONFIG_ARCH_T1040)
560 static void fdt_fixup_l2_switch(void *blob)
565 /* The l2switch node from device-tree has
566 * compatible string "vitesse-9953" */
567 node = fdt_node_offset_by_compatible(blob, -1, "vitesse-9953");
568 if (node == -FDT_ERR_NOTFOUND)
569 /* no l2switch node has been found */
572 /* Get MAC address for the l2switch from "l2switchaddr"*/
573 if (!eth_getenv_enetaddr("l2switchaddr", l2swaddr)) {
574 printf("Warning: MAC address for l2switch not found\n");
575 memset(l2swaddr, 0, sizeof(l2swaddr));
578 /* Add MAC address to l2switch node */
579 fdt_setprop(blob, node, "local-mac-address", l2swaddr,
583 #define fdt_fixup_l2_switch(x)
586 void ft_cpu_setup(void *blob, bd_t *bd)
593 /* delete crypto node if not on an E-processor */
594 if (!IS_E_PROCESSOR(get_svr()))
595 fdt_fixup_crypto_node(blob, 0);
596 #if CONFIG_SYS_FSL_SEC_COMPAT >= 4
598 ccsr_sec_t __iomem *sec;
600 sec = (void __iomem *)CONFIG_SYS_FSL_SEC_ADDR;
601 fdt_fixup_crypto_node(blob, sec_in32(&sec->secvid_ms));
605 fdt_fixup_ethernet(blob);
607 fdt_add_enet_stashing(blob);
609 #ifndef CONFIG_FSL_TBCLK_EXTRA_DIV
610 #define CONFIG_FSL_TBCLK_EXTRA_DIV 1
612 do_fixup_by_prop_u32(blob, "device_type", "cpu", 4,
613 "timebase-frequency", get_tbclk() / CONFIG_FSL_TBCLK_EXTRA_DIV,
615 do_fixup_by_prop_u32(blob, "device_type", "cpu", 4,
616 "bus-frequency", bd->bi_busfreq, 1);
617 get_sys_info(&sysinfo);
618 off = fdt_node_offset_by_prop_value(blob, -1, "device_type", "cpu", 4);
619 while (off != -FDT_ERR_NOTFOUND) {
620 u32 *reg = (u32 *)fdt_getprop(blob, off, "reg", &len);
621 val = cpu_to_fdt32(sysinfo.freq_processor[(*reg) / (len / 4)]);
622 fdt_setprop(blob, off, "clock-frequency", &val, 4);
623 off = fdt_node_offset_by_prop_value(blob, off, "device_type",
626 do_fixup_by_prop_u32(blob, "device_type", "soc", 4,
627 "bus-frequency", bd->bi_busfreq, 1);
631 ft_fixup_qe_snum(blob);
634 #ifdef CONFIG_SYS_DPAA_FMAN
635 fdt_fixup_fman_firmware(blob);
638 #ifdef CONFIG_SYS_NS16550
639 do_fixup_by_compat_u32(blob, "ns16550",
640 "clock-frequency", CONFIG_SYS_NS16550_CLK, 1);
644 do_fixup_by_compat_u32(blob, "fsl,cpm2-scc-uart",
645 "current-speed", gd->baudrate, 1);
647 do_fixup_by_compat_u32(blob, "fsl,cpm2-brg",
648 "clock-frequency", bd->bi_brgfreq, 1);
651 #ifdef CONFIG_FSL_CORENET
652 do_fixup_by_compat_u32(blob, "fsl,qoriq-clockgen-1.0",
653 "clock-frequency", CONFIG_SYS_CLK_FREQ, 1);
654 do_fixup_by_compat_u32(blob, "fsl,qoriq-clockgen-2.0",
655 "clock-frequency", CONFIG_SYS_CLK_FREQ, 1);
656 do_fixup_by_compat_u32(blob, "fsl,mpic",
657 "clock-frequency", get_bus_freq(0)/2, 1);
659 do_fixup_by_compat_u32(blob, "fsl,mpic",
660 "clock-frequency", get_bus_freq(0), 1);
663 fdt_fixup_memory(blob, (u64)bd->bi_memstart, (u64)bd->bi_memsize);
666 ft_fixup_cpu(blob, (u64)bd->bi_memstart + (u64)bd->bi_memsize);
667 ft_fixup_num_cores(blob);
670 ft_fixup_cache(blob);
672 #if defined(CONFIG_FSL_ESDHC)
673 fdt_fixup_esdhc(blob, bd);
676 ft_fixup_dpaa_clks(blob);
678 #if defined(CONFIG_SYS_BMAN_MEM_PHYS)
679 fdt_portal(blob, "fsl,bman-portal", "bman-portals",
680 (u64)CONFIG_SYS_BMAN_MEM_PHYS,
681 CONFIG_SYS_BMAN_MEM_SIZE);
682 fdt_fixup_bportals(blob);
685 #if defined(CONFIG_SYS_QMAN_MEM_PHYS)
686 fdt_portal(blob, "fsl,qman-portal", "qman-portals",
687 (u64)CONFIG_SYS_QMAN_MEM_PHYS,
688 CONFIG_SYS_QMAN_MEM_SIZE);
690 fdt_fixup_qportals(blob);
693 #ifdef CONFIG_SYS_SRIO
698 * system-clock = CCB clock/2
699 * Here gd->bus_clk = CCB clock
700 * We are using the system clock as 1588 Timer reference
701 * clock source select
703 do_fixup_by_compat_u32(blob, "fsl,gianfar-ptp-timer",
704 "timer-frequency", gd->bus_clk/2, 1);
707 * clock-freq should change to clock-frequency and
708 * flexcan-v1.0 should change to p1010-flexcan respectively
711 do_fixup_by_compat_u32(blob, "fsl,flexcan-v1.0",
712 "clock_freq", gd->bus_clk/2, 1);
714 do_fixup_by_compat_u32(blob, "fsl,flexcan-v1.0",
715 "clock-frequency", gd->bus_clk/2, 1);
717 do_fixup_by_compat_u32(blob, "fsl,p1010-flexcan",
718 "clock-frequency", gd->bus_clk/2, 1);
722 fdt_fixup_l2_switch(blob);
724 fdt_fixup_dma3(blob);
728 * For some CCSR devices, we only have the virtual address, not the physical
729 * address. This is because we map CCSR as a whole, so we typically don't need
730 * a macro for the physical address of any device within CCSR. In this case,
731 * we calculate the physical address of that device using it's the difference
732 * between the virtual address of the device and the virtual address of the
735 #define CCSR_VIRT_TO_PHYS(x) \
736 (CONFIG_SYS_CCSRBAR_PHYS + ((x) - CONFIG_SYS_CCSRBAR))
738 static void msg(const char *name, uint64_t uaddr, uint64_t daddr)
740 printf("Warning: U-Boot configured %s at address %llx,\n"
741 "but the device tree has it at %llx\n", name, uaddr, daddr);
745 * Verify the device tree
747 * This function compares several CONFIG_xxx macros that contain physical
748 * addresses with the corresponding nodes in the device tree, to see if
749 * the physical addresses are all correct. For example, if
750 * CONFIG_SYS_NS16550_COM1 is defined, then it contains the virtual address
751 * of the first UART. We convert this to a physical address and compare
752 * that with the physical address of the first ns16550-compatible node
753 * in the device tree. If they don't match, then we display a warning.
755 * Returns 1 on success, 0 on failure
757 int ft_verify_fdt(void *fdt)
763 /* First check the CCSR base address */
764 off = fdt_node_offset_by_prop_value(fdt, -1, "device_type", "soc", 4);
766 addr = fdt_get_base_address(fdt, off);
769 printf("Warning: could not determine base CCSR address in "
771 /* No point in checking anything else */
775 if (addr != CONFIG_SYS_CCSRBAR_PHYS) {
776 msg("CCSR", CONFIG_SYS_CCSRBAR_PHYS, addr);
777 /* No point in checking anything else */
782 * Check some nodes via aliases. We assume that U-Boot and the device
783 * tree enumerate the devices equally. E.g. the first serial port in
784 * U-Boot is the same as "serial0" in the device tree.
786 aliases = fdt_path_offset(fdt, "/aliases");
788 #ifdef CONFIG_SYS_NS16550_COM1
789 if (!fdt_verify_alias_address(fdt, aliases, "serial0",
790 CCSR_VIRT_TO_PHYS(CONFIG_SYS_NS16550_COM1)))
794 #ifdef CONFIG_SYS_NS16550_COM2
795 if (!fdt_verify_alias_address(fdt, aliases, "serial1",
796 CCSR_VIRT_TO_PHYS(CONFIG_SYS_NS16550_COM2)))
802 * The localbus node is typically a root node, even though the lbc
803 * controller is part of CCSR. If we were to put the lbc node under
804 * the SOC node, then the 'ranges' property in the lbc node would
805 * translate through the 'ranges' property of the parent SOC node, and
806 * we don't want that. Since it's a separate node, it's possible for
807 * the 'reg' property to be wrong, so check it here. For now, we
808 * only check for "fsl,elbc" nodes.
810 #ifdef CONFIG_SYS_LBC_ADDR
811 off = fdt_node_offset_by_compatible(fdt, -1, "fsl,elbc");
813 const fdt32_t *reg = fdt_getprop(fdt, off, "reg", NULL);
815 uint64_t uaddr = CCSR_VIRT_TO_PHYS(CONFIG_SYS_LBC_ADDR);
817 addr = fdt_translate_address(fdt, off, reg);
819 msg("the localbus", uaddr, addr);
829 void fdt_del_diu(void *blob)
833 while ((nodeoff = fdt_node_offset_by_compatible(blob, 0,
835 fdt_del_node(blob, nodeoff);