2 * Copyright 2007-2011 Freescale Semiconductor, Inc.
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_portals.h>
17 #ifdef CONFIG_FSL_ESDHC
18 #include <fsl_esdhc.h>
20 #include "../../../../drivers/qe/qe.h" /* For struct qe_firmware */
22 DECLARE_GLOBAL_DATA_PTR;
24 extern void ft_qe_setup(void *blob);
25 extern void ft_fixup_num_cores(void *blob);
26 extern void ft_srio_setup(void *blob);
31 void ft_fixup_cpu(void *blob, u64 memory_limit)
34 phys_addr_t spin_tbl_addr = get_spin_phys_addr();
35 u32 bootpg = determine_mp_bootpg(NULL);
37 const char *enable_method;
39 off = fdt_node_offset_by_prop_value(blob, -1, "device_type", "cpu", 4);
40 while (off != -FDT_ERR_NOTFOUND) {
41 u32 *reg = (u32 *)fdt_getprop(blob, off, "reg", 0);
44 u32 phys_cpu_id = thread_to_core(*reg);
45 u64 val = phys_cpu_id * SIZE_BOOT_ENTRY + spin_tbl_addr;
46 val = cpu_to_fdt64(val);
48 fdt_setprop_string(blob, off, "status",
51 fdt_setprop_string(blob, off, "status",
55 if (hold_cores_in_reset(0)) {
56 #ifdef CONFIG_FSL_CORENET
57 /* Cores held in reset, use BRR to release */
58 enable_method = "fsl,brr-holdoff";
60 /* Cores held in reset, use EEBPCR to release */
61 enable_method = "fsl,eebpcr-holdoff";
64 /* Cores out of reset and in a spin-loop */
65 enable_method = "spin-table";
67 fdt_setprop(blob, off, "cpu-release-addr",
71 fdt_setprop_string(blob, off, "enable-method",
74 printf ("cpu NULL\n");
76 off = fdt_node_offset_by_prop_value(blob, off,
77 "device_type", "cpu", 4);
80 /* Reserve the boot page so OSes dont use it */
81 if ((u64)bootpg < memory_limit) {
82 off = fdt_add_mem_rsv(blob, bootpg, (u64)4096);
84 printf("Failed to reserve memory for bootpg: %s\n",
88 #ifndef CONFIG_MPC8xxx_DISABLE_BPTR
90 * Reserve the default boot page so OSes dont use it.
91 * The default boot page is always mapped to bootpg above using
92 * boot page translation.
94 if (0xfffff000ull < memory_limit) {
95 off = fdt_add_mem_rsv(blob, 0xfffff000ull, (u64)4096);
97 printf("Failed to reserve memory for 0xfffff000: %s\n",
103 /* Reserve spin table page */
104 if (spin_tbl_addr < memory_limit) {
105 off = fdt_add_mem_rsv(blob,
106 (spin_tbl_addr & ~0xffful), 4096);
108 printf("Failed to reserve memory for spin table: %s\n",
114 #ifdef CONFIG_SYS_FSL_CPC
115 static inline void ft_fixup_l3cache(void *blob, int off)
117 u32 line_size, num_ways, size, num_sets;
118 cpc_corenet_t *cpc = (void *)CONFIG_SYS_FSL_CPC_ADDR;
119 u32 cfg0 = in_be32(&cpc->cpccfg0);
121 size = CPC_CFG0_SZ_K(cfg0) * 1024 * CONFIG_SYS_NUM_CPC;
122 num_ways = CPC_CFG0_NUM_WAYS(cfg0);
123 line_size = CPC_CFG0_LINE_SZ(cfg0);
124 num_sets = size / (line_size * num_ways);
126 fdt_setprop(blob, off, "cache-unified", NULL, 0);
127 fdt_setprop_cell(blob, off, "cache-block-size", line_size);
128 fdt_setprop_cell(blob, off, "cache-size", size);
129 fdt_setprop_cell(blob, off, "cache-sets", num_sets);
130 fdt_setprop_cell(blob, off, "cache-level", 3);
131 #ifdef CONFIG_SYS_CACHE_STASHING
132 fdt_setprop_cell(blob, off, "cache-stash-id", 1);
136 #define ft_fixup_l3cache(x, y)
139 #if defined(CONFIG_L2_CACHE)
140 /* return size in kilobytes */
141 static inline u32 l2cache_size(void)
143 volatile ccsr_l2cache_t *l2cache = (void *)CONFIG_SYS_MPC85xx_L2_ADDR;
144 volatile u32 l2siz_field = (l2cache->l2ctl >> 28) & 0x3;
145 u32 ver = SVR_SOC_VER(get_svr());
147 switch (l2siz_field) {
151 if (ver == SVR_8540 || ver == SVR_8560 ||
152 ver == SVR_8541 || ver == SVR_8555)
158 if (ver == SVR_8540 || ver == SVR_8560 ||
159 ver == SVR_8541 || ver == SVR_8555)
172 static inline void ft_fixup_l2cache(void *blob)
176 struct cpu_type *cpu = identify_cpu(SVR_SOC_VER(get_svr()));
178 const u32 line_size = 32;
179 const u32 num_ways = 8;
180 const u32 size = l2cache_size() * 1024;
181 const u32 num_sets = size / (line_size * num_ways);
183 off = fdt_node_offset_by_prop_value(blob, -1, "device_type", "cpu", 4);
185 debug("no cpu node fount\n");
189 ph = (u32 *)fdt_getprop(blob, off, "next-level-cache", 0);
192 debug("no next-level-cache property\n");
196 off = fdt_node_offset_by_phandle(blob, *ph);
198 printf("%s: %s\n", __func__, fdt_strerror(off));
205 if (isdigit(cpu->name[0])) {
206 /* MPCxxxx, where xxxx == 4-digit number */
207 len = sprintf(buf, "fsl,mpc%s-l2-cache-controller",
210 /* Pxxxx or Txxxx, where xxxx == 4-digit number */
211 len = sprintf(buf, "fsl,%c%s-l2-cache-controller",
212 tolower(cpu->name[0]), cpu->name + 1) + 1;
216 * append "cache" after the NULL character that the previous
217 * sprintf wrote. This is how a device tree stores multiple
218 * strings in a property.
220 len += sprintf(buf + len, "cache") + 1;
222 fdt_setprop(blob, off, "compatible", buf, len);
224 fdt_setprop(blob, off, "cache-unified", NULL, 0);
225 fdt_setprop_cell(blob, off, "cache-block-size", line_size);
226 fdt_setprop_cell(blob, off, "cache-size", size);
227 fdt_setprop_cell(blob, off, "cache-sets", num_sets);
228 fdt_setprop_cell(blob, off, "cache-level", 2);
230 /* we dont bother w/L3 since no platform of this type has one */
232 #elif defined(CONFIG_BACKSIDE_L2_CACHE) || \
233 defined(CONFIG_SYS_FSL_QORIQ_CHASSIS2)
234 static inline void ft_fixup_l2cache(void *blob)
236 int off, l2_off, l3_off = -1;
238 #ifdef CONFIG_BACKSIDE_L2_CACHE
239 u32 l2cfg0 = mfspr(SPRN_L2CFG0);
241 struct ccsr_cluster_l2 *l2cache =
242 (struct ccsr_cluster_l2 __iomem *)(CONFIG_SYS_FSL_CLUSTER_1_L2);
243 u32 l2cfg0 = in_be32(&l2cache->l2cfg0);
245 u32 size, line_size, num_ways, num_sets;
248 /* P2040/P2040E has no L2, so dont set any L2 props */
249 if (SVR_SOC_VER(get_svr()) == SVR_P2040)
252 size = (l2cfg0 & 0x3fff) * 64 * 1024;
253 num_ways = ((l2cfg0 >> 14) & 0x1f) + 1;
254 line_size = (((l2cfg0 >> 23) & 0x3) + 1) * 32;
255 num_sets = size / (line_size * num_ways);
257 off = fdt_node_offset_by_prop_value(blob, -1, "device_type", "cpu", 4);
259 while (off != -FDT_ERR_NOTFOUND) {
260 ph = (u32 *)fdt_getprop(blob, off, "next-level-cache", 0);
263 debug("no next-level-cache property\n");
267 l2_off = fdt_node_offset_by_phandle(blob, *ph);
269 printf("%s: %s\n", __func__, fdt_strerror(off));
274 #ifdef CONFIG_SYS_CACHE_STASHING
275 u32 *reg = (u32 *)fdt_getprop(blob, off, "reg", 0);
276 #ifdef CONFIG_SYS_FSL_QORIQ_CHASSIS2
277 /* Only initialize every eighth thread */
278 if (reg && !((*reg) % 8))
282 fdt_setprop_cell(blob, l2_off, "cache-stash-id",
283 (*reg * 2) + 32 + 1);
286 fdt_setprop(blob, l2_off, "cache-unified", NULL, 0);
287 fdt_setprop_cell(blob, l2_off, "cache-block-size",
289 fdt_setprop_cell(blob, l2_off, "cache-size", size);
290 fdt_setprop_cell(blob, l2_off, "cache-sets", num_sets);
291 fdt_setprop_cell(blob, l2_off, "cache-level", 2);
292 fdt_setprop(blob, l2_off, "compatible", "cache", 6);
296 ph = (u32 *)fdt_getprop(blob, l2_off, "next-level-cache", 0);
299 debug("no next-level-cache property\n");
305 off = fdt_node_offset_by_prop_value(blob, off,
306 "device_type", "cpu", 4);
309 l3_off = fdt_node_offset_by_phandle(blob, l3_off);
311 printf("%s: %s\n", __func__, fdt_strerror(off));
314 ft_fixup_l3cache(blob, l3_off);
318 #define ft_fixup_l2cache(x)
321 static inline void ft_fixup_cache(void *blob)
325 off = fdt_node_offset_by_prop_value(blob, -1, "device_type", "cpu", 4);
327 while (off != -FDT_ERR_NOTFOUND) {
328 u32 l1cfg0 = mfspr(SPRN_L1CFG0);
329 u32 l1cfg1 = mfspr(SPRN_L1CFG1);
330 u32 isize, iline_size, inum_sets, inum_ways;
331 u32 dsize, dline_size, dnum_sets, dnum_ways;
334 dsize = (l1cfg0 & 0x7ff) * 1024;
335 dnum_ways = ((l1cfg0 >> 11) & 0xff) + 1;
336 dline_size = (((l1cfg0 >> 23) & 0x3) + 1) * 32;
337 dnum_sets = dsize / (dline_size * dnum_ways);
339 fdt_setprop_cell(blob, off, "d-cache-block-size", dline_size);
340 fdt_setprop_cell(blob, off, "d-cache-size", dsize);
341 fdt_setprop_cell(blob, off, "d-cache-sets", dnum_sets);
343 #ifdef CONFIG_SYS_CACHE_STASHING
345 u32 *reg = (u32 *)fdt_getprop(blob, off, "reg", 0);
347 fdt_setprop_cell(blob, off, "cache-stash-id",
348 (*reg * 2) + 32 + 0);
353 isize = (l1cfg1 & 0x7ff) * 1024;
354 inum_ways = ((l1cfg1 >> 11) & 0xff) + 1;
355 iline_size = (((l1cfg1 >> 23) & 0x3) + 1) * 32;
356 inum_sets = isize / (iline_size * inum_ways);
358 fdt_setprop_cell(blob, off, "i-cache-block-size", iline_size);
359 fdt_setprop_cell(blob, off, "i-cache-size", isize);
360 fdt_setprop_cell(blob, off, "i-cache-sets", inum_sets);
362 off = fdt_node_offset_by_prop_value(blob, off,
363 "device_type", "cpu", 4);
366 ft_fixup_l2cache(blob);
370 void fdt_add_enet_stashing(void *fdt)
372 do_fixup_by_compat(fdt, "gianfar", "bd-stash", NULL, 0, 1);
374 do_fixup_by_compat_u32(fdt, "gianfar", "rx-stash-len", 96, 1);
376 do_fixup_by_compat_u32(fdt, "gianfar", "rx-stash-idx", 0, 1);
377 do_fixup_by_compat(fdt, "fsl,etsec2", "bd-stash", NULL, 0, 1);
378 do_fixup_by_compat_u32(fdt, "fsl,etsec2", "rx-stash-len", 96, 1);
379 do_fixup_by_compat_u32(fdt, "fsl,etsec2", "rx-stash-idx", 0, 1);
382 #if defined(CONFIG_SYS_DPAA_FMAN) || defined(CONFIG_SYS_DPAA_PME)
383 #ifdef CONFIG_SYS_DPAA_FMAN
384 static void ft_fixup_clks(void *blob, const char *compat, u32 offset,
387 phys_addr_t phys = offset + CONFIG_SYS_CCSRBAR_PHYS;
388 int off = fdt_node_offset_by_compat_reg(blob, compat, phys);
391 off = fdt_setprop_cell(blob, off, "clock-frequency", freq);
393 printf("WARNING enable to set clock-frequency "
394 "for %s: %s\n", compat, fdt_strerror(off));
399 static void ft_fixup_dpaa_clks(void *blob)
403 get_sys_info(&sysinfo);
404 #ifdef CONFIG_SYS_DPAA_FMAN
405 ft_fixup_clks(blob, "fsl,fman", CONFIG_SYS_FSL_FM1_OFFSET,
406 sysinfo.freq_fman[0]);
408 #if (CONFIG_SYS_NUM_FMAN == 2)
409 ft_fixup_clks(blob, "fsl,fman", CONFIG_SYS_FSL_FM2_OFFSET,
410 sysinfo.freq_fman[1]);
414 #ifdef CONFIG_SYS_DPAA_QBMAN
415 do_fixup_by_compat_u32(blob, "fsl,qman",
416 "clock-frequency", sysinfo.freq_qman, 1);
419 #ifdef CONFIG_SYS_DPAA_PME
420 do_fixup_by_compat_u32(blob, "fsl,pme",
421 "clock-frequency", sysinfo.freq_pme, 1);
425 #define ft_fixup_dpaa_clks(x)
429 static void ft_fixup_qe_snum(void *blob)
433 svr = mfspr(SPRN_SVR);
434 if (SVR_SOC_VER(svr) == SVR_8569) {
435 if(IS_SVR_REV(svr, 1, 0))
436 do_fixup_by_compat_u32(blob, "fsl,qe",
437 "fsl,qe-num-snums", 46, 1);
439 do_fixup_by_compat_u32(blob, "fsl,qe",
440 "fsl,qe-num-snums", 76, 1);
446 * fdt_fixup_fman_firmware -- insert the Fman firmware into the device tree
448 * The binding for an Fman firmware node is documented in
449 * Documentation/powerpc/dts-bindings/fsl/dpaa/fman.txt. This node contains
450 * the actual Fman firmware binary data. The operating system is expected to
451 * be able to parse the binary data to determine any attributes it needs.
453 #ifdef CONFIG_SYS_DPAA_FMAN
454 void fdt_fixup_fman_firmware(void *blob)
456 int rc, fmnode, fwnode = -1;
458 struct qe_firmware *fmanfw;
459 const struct qe_header *hdr;
464 /* The first Fman we find will contain the actual firmware. */
465 fmnode = fdt_node_offset_by_compatible(blob, -1, "fsl,fman");
467 /* Exit silently if there are no Fman devices */
470 /* If we already have a firmware node, then also exit silently. */
471 if (fdt_node_offset_by_compatible(blob, -1, "fsl,fman-firmware") > 0)
474 /* If the environment variable is not set, then exit silently */
475 p = getenv("fman_ucode");
479 fmanfw = (struct qe_firmware *) simple_strtoul(p, NULL, 16);
483 hdr = &fmanfw->header;
484 length = be32_to_cpu(hdr->length);
486 /* Verify the firmware. */
487 if ((hdr->magic[0] != 'Q') || (hdr->magic[1] != 'E') ||
488 (hdr->magic[2] != 'F')) {
489 printf("Data at %p is not an Fman firmware\n", fmanfw);
493 if (length > CONFIG_SYS_QE_FMAN_FW_LENGTH) {
494 printf("Fman firmware at %p is too large (size=%u)\n",
499 length -= sizeof(u32); /* Subtract the size of the CRC */
500 crc = be32_to_cpu(*(u32 *)((void *)fmanfw + length));
501 if (crc != crc32_no_comp(0, (void *)fmanfw, length)) {
502 printf("Fman firmware at %p has invalid CRC\n", fmanfw);
506 /* Increase the size of the fdt to make room for the node. */
507 rc = fdt_increase_size(blob, fmanfw->header.length);
509 printf("Unable to make room for Fman firmware: %s\n",
514 /* Create the firmware node. */
515 fwnode = fdt_add_subnode(blob, fmnode, "fman-firmware");
518 fdt_get_path(blob, fmnode, s, sizeof(s));
519 printf("Could not add firmware node to %s: %s\n", s,
520 fdt_strerror(fwnode));
523 rc = fdt_setprop_string(blob, fwnode, "compatible", "fsl,fman-firmware");
526 fdt_get_path(blob, fwnode, s, sizeof(s));
527 printf("Could not add compatible property to node %s: %s\n", s,
531 phandle = fdt_create_phandle(blob, fwnode);
534 fdt_get_path(blob, fwnode, s, sizeof(s));
535 printf("Could not add phandle property to node %s: %s\n", s,
539 rc = fdt_setprop(blob, fwnode, "fsl,firmware", fmanfw, fmanfw->header.length);
542 fdt_get_path(blob, fwnode, s, sizeof(s));
543 printf("Could not add firmware property to node %s: %s\n", s,
548 /* Find all other Fman nodes and point them to the firmware node. */
549 while ((fmnode = fdt_node_offset_by_compatible(blob, fmnode, "fsl,fman")) > 0) {
550 rc = fdt_setprop_cell(blob, fmnode, "fsl,firmware-phandle", phandle);
553 fdt_get_path(blob, fmnode, s, sizeof(s));
554 printf("Could not add pointer property to node %s: %s\n",
555 s, fdt_strerror(rc));
561 #define fdt_fixup_fman_firmware(x)
564 #if defined(CONFIG_PPC_P4080)
565 static void fdt_fixup_usb(void *fdt)
567 ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
568 u32 rcwsr11 = in_be32(&gur->rcwsr[11]);
571 off = fdt_node_offset_by_compatible(fdt, -1, "fsl,mpc85xx-usb2-mph");
572 if ((rcwsr11 & FSL_CORENET_RCWSR11_EC1) !=
573 FSL_CORENET_RCWSR11_EC1_FM1_USB1)
574 fdt_status_disabled(fdt, off);
576 off = fdt_node_offset_by_compatible(fdt, -1, "fsl,mpc85xx-usb2-dr");
577 if ((rcwsr11 & FSL_CORENET_RCWSR11_EC2) !=
578 FSL_CORENET_RCWSR11_EC2_USB2)
579 fdt_status_disabled(fdt, off);
582 #define fdt_fixup_usb(x)
585 void ft_cpu_setup(void *blob, bd_t *bd)
591 /* delete crypto node if not on an E-processor */
592 if (!IS_E_PROCESSOR(get_svr()))
593 fdt_fixup_crypto_node(blob, 0);
594 #if CONFIG_SYS_FSL_SEC_COMPAT >= 4
596 ccsr_sec_t __iomem *sec;
598 sec = (void __iomem *)CONFIG_SYS_FSL_SEC_ADDR;
599 fdt_fixup_crypto_node(blob, in_be32(&sec->secvid_ms));
603 fdt_fixup_ethernet(blob);
605 fdt_add_enet_stashing(blob);
607 #ifndef CONFIG_FSL_TBCLK_EXTRA_DIV
608 #define CONFIG_FSL_TBCLK_EXTRA_DIV 1
610 do_fixup_by_prop_u32(blob, "device_type", "cpu", 4,
611 "timebase-frequency", get_tbclk() / CONFIG_FSL_TBCLK_EXTRA_DIV,
613 do_fixup_by_prop_u32(blob, "device_type", "cpu", 4,
614 "bus-frequency", bd->bi_busfreq, 1);
615 get_sys_info(&sysinfo);
616 off = fdt_node_offset_by_prop_value(blob, -1, "device_type", "cpu", 4);
617 while (off != -FDT_ERR_NOTFOUND) {
618 u32 *reg = (u32 *)fdt_getprop(blob, off, "reg", 0);
619 val = cpu_to_fdt32(sysinfo.freq_processor[*reg]);
620 fdt_setprop(blob, off, "clock-frequency", &val, 4);
621 off = fdt_node_offset_by_prop_value(blob, off, "device_type",
624 do_fixup_by_prop_u32(blob, "device_type", "soc", 4,
625 "bus-frequency", bd->bi_busfreq, 1);
627 do_fixup_by_compat_u32(blob, "fsl,pq3-localbus",
628 "bus-frequency", gd->arch.lbc_clk, 1);
629 do_fixup_by_compat_u32(blob, "fsl,elbc",
630 "bus-frequency", gd->arch.lbc_clk, 1);
633 ft_fixup_qe_snum(blob);
636 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", bd->bi_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);
724 * For some CCSR devices, we only have the virtual address, not the physical
725 * address. This is because we map CCSR as a whole, so we typically don't need
726 * a macro for the physical address of any device within CCSR. In this case,
727 * we calculate the physical address of that device using it's the difference
728 * between the virtual address of the device and the virtual address of the
731 #define CCSR_VIRT_TO_PHYS(x) \
732 (CONFIG_SYS_CCSRBAR_PHYS + ((x) - CONFIG_SYS_CCSRBAR))
734 static void msg(const char *name, uint64_t uaddr, uint64_t daddr)
736 printf("Warning: U-Boot configured %s at address %llx,\n"
737 "but the device tree has it at %llx\n", name, uaddr, daddr);
741 * Verify the device tree
743 * This function compares several CONFIG_xxx macros that contain physical
744 * addresses with the corresponding nodes in the device tree, to see if
745 * the physical addresses are all correct. For example, if
746 * CONFIG_SYS_NS16550_COM1 is defined, then it contains the virtual address
747 * of the first UART. We convert this to a physical address and compare
748 * that with the physical address of the first ns16550-compatible node
749 * in the device tree. If they don't match, then we display a warning.
751 * Returns 1 on success, 0 on failure
753 int ft_verify_fdt(void *fdt)
759 /* First check the CCSR base address */
760 off = fdt_node_offset_by_prop_value(fdt, -1, "device_type", "soc", 4);
762 addr = fdt_get_base_address(fdt, off);
765 printf("Warning: could not determine base CCSR address in "
767 /* No point in checking anything else */
771 if (addr != CONFIG_SYS_CCSRBAR_PHYS) {
772 msg("CCSR", CONFIG_SYS_CCSRBAR_PHYS, addr);
773 /* No point in checking anything else */
778 * Check some nodes via aliases. We assume that U-Boot and the device
779 * tree enumerate the devices equally. E.g. the first serial port in
780 * U-Boot is the same as "serial0" in the device tree.
782 aliases = fdt_path_offset(fdt, "/aliases");
784 #ifdef CONFIG_SYS_NS16550_COM1
785 if (!fdt_verify_alias_address(fdt, aliases, "serial0",
786 CCSR_VIRT_TO_PHYS(CONFIG_SYS_NS16550_COM1)))
790 #ifdef CONFIG_SYS_NS16550_COM2
791 if (!fdt_verify_alias_address(fdt, aliases, "serial1",
792 CCSR_VIRT_TO_PHYS(CONFIG_SYS_NS16550_COM2)))
798 * The localbus node is typically a root node, even though the lbc
799 * controller is part of CCSR. If we were to put the lbc node under
800 * the SOC node, then the 'ranges' property in the lbc node would
801 * translate through the 'ranges' property of the parent SOC node, and
802 * we don't want that. Since it's a separate node, it's possible for
803 * the 'reg' property to be wrong, so check it here. For now, we
804 * only check for "fsl,elbc" nodes.
806 #ifdef CONFIG_SYS_LBC_ADDR
807 off = fdt_node_offset_by_compatible(fdt, -1, "fsl,elbc");
809 const fdt32_t *reg = fdt_getprop(fdt, off, "reg", NULL);
811 uint64_t uaddr = CCSR_VIRT_TO_PHYS(CONFIG_SYS_LBC_ADDR);
813 addr = fdt_translate_address(fdt, off, reg);
815 msg("the localbus", uaddr, addr);