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common/fdt_support.c
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// SPDX-License-Identifier: GPL-2.0+ |
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/* * (C) Copyright 2007 * Gerald Van Baren, Custom IDEAS, vanbaren@cideas.com * |
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* Copyright 2010-2011 Freescale Semiconductor, Inc. |
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*/ #include <common.h> |
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#include <env.h> |
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#include <mapmem.h> |
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#include <stdio_dev.h> |
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#include <linux/ctype.h> #include <linux/types.h> |
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#include <asm/global_data.h> |
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#include <linux/libfdt.h> |
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#include <fdt_support.h> |
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#include <exports.h> |
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#include <fdtdec.h> |
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|
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/** |
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* fdt_getprop_u32_default_node - Return a node's property or a default * * @fdt: ptr to device tree * @off: offset of node * @cell: cell offset in property * @prop: property name * @dflt: default value if the property isn't found * * Convenience function to return a node's property or a default value if * the property doesn't exist. */ u32 fdt_getprop_u32_default_node(const void *fdt, int off, int cell, const char *prop, const u32 dflt) { const fdt32_t *val; int len; val = fdt_getprop(fdt, off, prop, &len); /* Check if property exists */ if (!val) return dflt; /* Check if property is long enough */ if (len < ((cell + 1) * sizeof(uint32_t))) return dflt; return fdt32_to_cpu(*val); } /** |
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* fdt_getprop_u32_default - Find a node and return it's property or a default * * @fdt: ptr to device tree * @path: path of node * @prop: property name * @dflt: default value if the property isn't found * * Convenience function to find a node and return it's property or a * default value if it doesn't exist. */ |
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u32 fdt_getprop_u32_default(const void *fdt, const char *path, const char *prop, const u32 dflt) |
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{ |
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int off; off = fdt_path_offset(fdt, path); if (off < 0) return dflt; |
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return fdt_getprop_u32_default_node(fdt, off, 0, prop, dflt); |
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} |
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/** * fdt_find_and_setprop: Find a node and set it's property * * @fdt: ptr to device tree * @node: path of node * @prop: property name * @val: ptr to new value * @len: length of new property value * @create: flag to create the property if it doesn't exist * * Convenience function to directly set a property given the path to the node. */ int fdt_find_and_setprop(void *fdt, const char *node, const char *prop, const void *val, int len, int create) { |
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int nodeoff = fdt_path_offset(fdt, node); |
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if (nodeoff < 0) return nodeoff; |
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if ((!create) && (fdt_get_property(fdt, nodeoff, prop, NULL) == NULL)) |
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return 0; /* create flag not set; so exit quietly */ return fdt_setprop(fdt, nodeoff, prop, val, len); } |
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/** |
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* fdt_find_or_add_subnode() - find or possibly add a subnode of a given node * |
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* @fdt: pointer to the device tree blob * @parentoffset: structure block offset of a node * @name: name of the subnode to locate * * fdt_subnode_offset() finds a subnode of the node with a given name. * If the subnode does not exist, it will be created. */ |
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int fdt_find_or_add_subnode(void *fdt, int parentoffset, const char *name) |
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{ int offset; offset = fdt_subnode_offset(fdt, parentoffset, name); if (offset == -FDT_ERR_NOTFOUND) offset = fdt_add_subnode(fdt, parentoffset, name); if (offset < 0) printf("%s: %s: %s ", __func__, name, fdt_strerror(offset)); return offset; } |
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/* rename to CONFIG_OF_STDOUT_PATH ? */ #if defined(OF_STDOUT_PATH) static int fdt_fixup_stdout(void *fdt, int chosenoff) { return fdt_setprop(fdt, chosenoff, "linux,stdout-path", OF_STDOUT_PATH, strlen(OF_STDOUT_PATH) + 1); } #elif defined(CONFIG_OF_STDOUT_VIA_ALIAS) && defined(CONFIG_CONS_INDEX) |
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static int fdt_fixup_stdout(void *fdt, int chosenoff) |
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{ |
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int err; int aliasoff; |
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char sername[9] = { 0 }; |
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const void *path; int len; char tmp[256]; /* long enough */ |
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|
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sprintf(sername, "serial%d", CONFIG_CONS_INDEX - 1); |
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aliasoff = fdt_path_offset(fdt, "/aliases"); if (aliasoff < 0) { err = aliasoff; |
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goto noalias; |
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} |
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path = fdt_getprop(fdt, aliasoff, sername, &len); if (!path) { err = len; |
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goto noalias; |
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} /* fdt_setprop may break "path" so we copy it to tmp buffer */ memcpy(tmp, path, len); err = fdt_setprop(fdt, chosenoff, "linux,stdout-path", tmp, len); |
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if (err < 0) printf("WARNING: could not set linux,stdout-path %s. ", |
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fdt_strerror(err)); |
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return err; |
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noalias: printf("WARNING: %s: could not read %s alias: %s ", __func__, sername, fdt_strerror(err)); return 0; |
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} |
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#else static int fdt_fixup_stdout(void *fdt, int chosenoff) { return 0; } |
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#endif |
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static inline int fdt_setprop_uxx(void *fdt, int nodeoffset, const char *name, uint64_t val, int is_u64) { if (is_u64) return fdt_setprop_u64(fdt, nodeoffset, name, val); else return fdt_setprop_u32(fdt, nodeoffset, name, (uint32_t)val); } |
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int fdt_root(void *fdt) { char *serial; int err; err = fdt_check_header(fdt); if (err < 0) { printf("fdt_root: %s ", fdt_strerror(err)); return err; } |
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serial = env_get("serial#"); |
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if (serial) { err = fdt_setprop(fdt, 0, "serial-number", serial, strlen(serial) + 1); if (err < 0) { printf("WARNING: could not set serial-number %s. ", fdt_strerror(err)); return err; } } return 0; } |
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int fdt_initrd(void *fdt, ulong initrd_start, ulong initrd_end) |
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{ |
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int nodeoffset; |
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int err, j, total; |
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int is_u64; |
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uint64_t addr, size; |
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/* just return if the size of initrd is zero */ if (initrd_start == initrd_end) return 0; |
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/* find or create "/chosen" node. */ nodeoffset = fdt_find_or_add_subnode(fdt, 0, "chosen"); if (nodeoffset < 0) |
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return nodeoffset; |
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total = fdt_num_mem_rsv(fdt); /* * Look for an existing entry and update it. If we don't find * the entry, we will j be the next available slot. */ for (j = 0; j < total; j++) { err = fdt_get_mem_rsv(fdt, j, &addr, &size); if (addr == initrd_start) { fdt_del_mem_rsv(fdt, j); break; |
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} |
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} |
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err = fdt_add_mem_rsv(fdt, initrd_start, initrd_end - initrd_start); |
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if (err < 0) { printf("fdt_initrd: %s ", fdt_strerror(err)); return err; } |
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is_u64 = (fdt_address_cells(fdt, 0) == 2); |
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err = fdt_setprop_uxx(fdt, nodeoffset, "linux,initrd-start", (uint64_t)initrd_start, is_u64); |
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if (err < 0) { printf("WARNING: could not set linux,initrd-start %s. ", fdt_strerror(err)); return err; } |
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err = fdt_setprop_uxx(fdt, nodeoffset, "linux,initrd-end", (uint64_t)initrd_end, is_u64); |
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if (err < 0) { printf("WARNING: could not set linux,initrd-end %s. ", fdt_strerror(err)); |
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return err; |
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} |
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return 0; } |
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int fdt_chosen(void *fdt) |
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{ int nodeoffset; int err; char *str; /* used to set string properties */ |
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err = fdt_check_header(fdt); if (err < 0) { printf("fdt_chosen: %s ", fdt_strerror(err)); return err; } |
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/* find or create "/chosen" node. */ nodeoffset = fdt_find_or_add_subnode(fdt, 0, "chosen"); if (nodeoffset < 0) return nodeoffset; |
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str = env_get("bootargs"); |
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if (str) { err = fdt_setprop(fdt, nodeoffset, "bootargs", str, strlen(str) + 1); if (err < 0) { |
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printf("WARNING: could not set bootargs %s. ", fdt_strerror(err)); |
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return err; } |
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} |
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return fdt_fixup_stdout(fdt, nodeoffset); |
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} |
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void do_fixup_by_path(void *fdt, const char *path, const char *prop, const void *val, int len, int create) { #if defined(DEBUG) int i; |
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debug("Updating property '%s/%s' = ", path, prop); |
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for (i = 0; i < len; i++) debug(" %.2x", *(u8*)(val+i)); debug(" "); #endif int rc = fdt_find_and_setprop(fdt, path, prop, val, len, create); if (rc) printf("Unable to update property %s:%s, err=%s ", path, prop, fdt_strerror(rc)); } void do_fixup_by_path_u32(void *fdt, const char *path, const char *prop, u32 val, int create) { |
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fdt32_t tmp = cpu_to_fdt32(val); do_fixup_by_path(fdt, path, prop, &tmp, sizeof(tmp), create); |
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} |
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void do_fixup_by_prop(void *fdt, const char *pname, const void *pval, int plen, const char *prop, const void *val, int len, int create) { int off; #if defined(DEBUG) int i; |
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debug("Updating property '%s' = ", prop); |
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for (i = 0; i < len; i++) debug(" %.2x", *(u8*)(val+i)); debug(" "); #endif off = fdt_node_offset_by_prop_value(fdt, -1, pname, pval, plen); while (off != -FDT_ERR_NOTFOUND) { |
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if (create || (fdt_get_property(fdt, off, prop, NULL) != NULL)) |
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fdt_setprop(fdt, off, prop, val, len); off = fdt_node_offset_by_prop_value(fdt, off, pname, pval, plen); } } void do_fixup_by_prop_u32(void *fdt, const char *pname, const void *pval, int plen, const char *prop, u32 val, int create) { |
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fdt32_t tmp = cpu_to_fdt32(val); do_fixup_by_prop(fdt, pname, pval, plen, prop, &tmp, 4, create); |
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} void do_fixup_by_compat(void *fdt, const char *compat, const char *prop, const void *val, int len, int create) { int off = -1; #if defined(DEBUG) int i; |
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debug("Updating property '%s' = ", prop); |
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for (i = 0; i < len; i++) debug(" %.2x", *(u8*)(val+i)); debug(" "); #endif off = fdt_node_offset_by_compatible(fdt, -1, compat); while (off != -FDT_ERR_NOTFOUND) { |
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if (create || (fdt_get_property(fdt, off, prop, NULL) != NULL)) |
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fdt_setprop(fdt, off, prop, val, len); off = fdt_node_offset_by_compatible(fdt, off, compat); } } void do_fixup_by_compat_u32(void *fdt, const char *compat, const char *prop, u32 val, int create) { |
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fdt32_t tmp = cpu_to_fdt32(val); do_fixup_by_compat(fdt, compat, prop, &tmp, 4, create); |
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} |
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#ifdef CONFIG_ARCH_FIXUP_FDT_MEMORY |
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/* * fdt_pack_reg - pack address and size array into the "reg"-suitable stream */ |
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static int fdt_pack_reg(const void *fdt, void *buf, u64 *address, u64 *size, int n) |
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{ int i; |
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int address_cells = fdt_address_cells(fdt, 0); int size_cells = fdt_size_cells(fdt, 0); |
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char *p = buf; for (i = 0; i < n; i++) { |
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if (address_cells == 2) |
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*(fdt64_t *)p = cpu_to_fdt64(address[i]); else *(fdt32_t *)p = cpu_to_fdt32(address[i]); |
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p += 4 * address_cells; |
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if (size_cells == 2) |
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*(fdt64_t *)p = cpu_to_fdt64(size[i]); else *(fdt32_t *)p = cpu_to_fdt32(size[i]); |
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p += 4 * size_cells; |
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} return p - (char *)buf; } |
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#if CONFIG_NR_DRAM_BANKS > 4 #define MEMORY_BANKS_MAX CONFIG_NR_DRAM_BANKS #else |
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#define MEMORY_BANKS_MAX 4 |
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#endif |
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int fdt_fixup_memory_banks(void *blob, u64 start[], u64 size[], int banks) { int err, nodeoffset; |
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int len, i; |
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u8 tmp[MEMORY_BANKS_MAX * 16]; /* Up to 64-bit address + 64-bit size */ |
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if (banks > MEMORY_BANKS_MAX) { printf("%s: num banks %d exceeds hardcoded limit %d." " Recompile with higher MEMORY_BANKS_MAX? ", __FUNCTION__, banks, MEMORY_BANKS_MAX); return -1; } |
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err = fdt_check_header(blob); if (err < 0) { printf("%s: %s ", __FUNCTION__, fdt_strerror(err)); return err; } |
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/* find or create "/memory" node. */ nodeoffset = fdt_find_or_add_subnode(blob, 0, "memory"); if (nodeoffset < 0) |
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return nodeoffset; |
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err = fdt_setprop(blob, nodeoffset, "device_type", "memory", sizeof("memory")); if (err < 0) { printf("WARNING: could not set %s %s. ", "device_type", fdt_strerror(err)); return err; } |
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for (i = 0; i < banks; i++) { if (start[i] == 0 && size[i] == 0) break; } banks = i; |
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if (!banks) return 0; |
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len = fdt_pack_reg(blob, tmp, start, size, banks); |
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err = fdt_setprop(blob, nodeoffset, "reg", tmp, len); if (err < 0) { printf("WARNING: could not set %s %s. ", "reg", fdt_strerror(err)); return err; } return 0; } |
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int fdt_set_usable_memory(void *blob, u64 start[], u64 size[], int areas) { int err, nodeoffset; int len; u8 tmp[8 * 16]; /* Up to 64-bit address + 64-bit size */ if (areas > 8) { printf("%s: num areas %d exceeds hardcoded limit %d ", __func__, areas, 8); return -1; } err = fdt_check_header(blob); if (err < 0) { printf("%s: %s ", __func__, fdt_strerror(err)); return err; } /* find or create "/memory" node. */ nodeoffset = fdt_find_or_add_subnode(blob, 0, "memory"); if (nodeoffset < 0) return nodeoffset; len = fdt_pack_reg(blob, tmp, start, size, areas); err = fdt_setprop(blob, nodeoffset, "linux,usable-memory", tmp, len); if (err < 0) { printf("WARNING: could not set %s %s. ", "reg", fdt_strerror(err)); return err; } return 0; } |
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#endif |
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int fdt_fixup_memory(void *blob, u64 start, u64 size) { return fdt_fixup_memory_banks(blob, &start, &size, 1); } |
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void fdt_fixup_ethernet(void *fdt) |
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{ |
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int i = 0, j, prop; |
bc393a795 fdt: Rewrite the ... |
513 |
char *tmp, *end; |
064d55f8b fdt: remove unali... |
514 |
char mac[16]; |
ab544633a Add fdt_fixup_eth... |
515 |
const char *path; |
a40db6d51 net: cosmetic: Do... |
516 |
unsigned char mac_addr[ARP_HLEN]; |
bc393a795 fdt: Rewrite the ... |
517 |
int offset; |
24acb83d8 common: Fix-up MA... |
518 519 520 521 |
#ifdef FDT_SEQ_MACADDR_FROM_ENV int nodeoff; const struct fdt_property *fdt_prop; #endif |
ab544633a Add fdt_fixup_eth... |
522 |
|
a434fd1d2 fdt: fix setting ... |
523 |
if (fdt_path_offset(fdt, "/aliases") < 0) |
ba37aa032 fdt: rework fdt_f... |
524 |
return; |
a434fd1d2 fdt: fix setting ... |
525 526 |
/* Cycle through all aliases */ for (prop = 0; ; prop++) { |
bc393a795 fdt: Rewrite the ... |
527 |
const char *name; |
bc393a795 fdt: Rewrite the ... |
528 |
|
a434fd1d2 fdt: fix setting ... |
529 530 531 532 |
/* FDT might have been edited, recompute the offset */ offset = fdt_first_property_offset(fdt, fdt_path_offset(fdt, "/aliases")); /* Select property number 'prop' */ |
24acb83d8 common: Fix-up MA... |
533 |
for (j = 0; j < prop; j++) |
a434fd1d2 fdt: fix setting ... |
534 535 536 537 |
offset = fdt_next_property_offset(fdt, offset); if (offset < 0) break; |
bc393a795 fdt: Rewrite the ... |
538 |
path = fdt_getprop_by_offset(fdt, offset, &name, NULL); |
f8e57c650 fdt_support: Fixu... |
539 540 |
if (!strncmp(name, "ethernet", 8)) { /* Treat plain "ethernet" same as "ethernet0". */ |
24acb83d8 common: Fix-up MA... |
541 542 543 544 545 |
if (!strcmp(name, "ethernet") #ifdef FDT_SEQ_MACADDR_FROM_ENV || !strcmp(name, "ethernet0") #endif ) |
f8e57c650 fdt_support: Fixu... |
546 |
i = 0; |
24acb83d8 common: Fix-up MA... |
547 |
#ifndef FDT_SEQ_MACADDR_FROM_ENV |
f8e57c650 fdt_support: Fixu... |
548 549 |
else i = trailing_strtol(name); |
24acb83d8 common: Fix-up MA... |
550 |
#endif |
bc393a795 fdt: Rewrite the ... |
551 552 553 554 555 556 557 558 |
if (i != -1) { if (i == 0) strcpy(mac, "ethaddr"); else sprintf(mac, "eth%daddr", i); } else { continue; } |
24acb83d8 common: Fix-up MA... |
559 560 561 562 563 564 565 566 |
#ifdef FDT_SEQ_MACADDR_FROM_ENV nodeoff = fdt_path_offset(fdt, path); fdt_prop = fdt_get_property(fdt, nodeoff, "status", NULL); if (fdt_prop && !strcmp(fdt_prop->data, "disabled")) continue; i++; #endif |
00caae6d4 env: Rename geten... |
567 |
tmp = env_get(mac); |
bc393a795 fdt: Rewrite the ... |
568 569 570 571 572 573 574 575 576 577 578 579 580 581 |
if (!tmp) continue; for (j = 0; j < 6; j++) { mac_addr[j] = tmp ? simple_strtoul(tmp, &end, 16) : 0; if (tmp) tmp = (*end) ? end + 1 : end; } do_fixup_by_path(fdt, path, "mac-address", &mac_addr, 6, 0); do_fixup_by_path(fdt, path, "local-mac-address", &mac_addr, 6, 1); |
ab544633a Add fdt_fixup_eth... |
582 |
} |
ab544633a Add fdt_fixup_eth... |
583 584 |
} } |
18e69a35e 83xx/fdt_support:... |
585 |
|
a5af51a70 spl: fit: move fd... |
586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 |
int fdt_record_loadable(void *blob, u32 index, const char *name, uintptr_t load_addr, u32 size, uintptr_t entry_point, const char *type, const char *os) { int err, node; err = fdt_check_header(blob); if (err < 0) { printf("%s: %s ", __func__, fdt_strerror(err)); return err; } /* find or create "/fit-images" node */ node = fdt_find_or_add_subnode(blob, 0, "fit-images"); if (node < 0) return node; /* find or create "/fit-images/<name>" node */ node = fdt_find_or_add_subnode(blob, node, name); if (node < 0) return node; /* * We record these as 32bit entities, possibly truncating addresses. * However, spl_fit.c is not 64bit safe either: i.e. we should not * have an issue here. */ fdt_setprop_u32(blob, node, "load-addr", load_addr); if (entry_point != -1) fdt_setprop_u32(blob, node, "entry-point", entry_point); fdt_setprop_u32(blob, node, "size", size); if (type) fdt_setprop_string(blob, node, "type", type); if (os) fdt_setprop_string(blob, node, "os", os); return node; } |
3082d2348 fdt: refactor fdt... |
625 |
/* Resize the fdt to its actual size + a bit of padding */ |
ef4768364 cmd/fdt: add poss... |
626 |
int fdt_shrink_to_minimum(void *blob, uint extrasize) |
3082d2348 fdt: refactor fdt... |
627 628 629 630 631 |
{ int i; uint64_t addr, size; int total, ret; uint actualsize; |
59bd79680 fdt_shrink_to_min... |
632 |
int fdt_memrsv = 0; |
3082d2348 fdt: refactor fdt... |
633 634 635 636 637 638 639 |
if (!blob) return 0; total = fdt_num_mem_rsv(blob); for (i = 0; i < total; i++) { fdt_get_mem_rsv(blob, i, &addr, &size); |
925493582 sandbox: Use uint... |
640 |
if (addr == (uintptr_t)blob) { |
3082d2348 fdt: refactor fdt... |
641 |
fdt_del_mem_rsv(blob, i); |
59bd79680 fdt_shrink_to_min... |
642 |
fdt_memrsv = 1; |
3082d2348 fdt: refactor fdt... |
643 644 645 |
break; } } |
f242a0887 fdt_resize(): ens... |
646 647 |
/* * Calculate the actual size of the fdt |
3840ebfaf fdt: Fix bug in s... |
648 649 650 |
* plus the size needed for 5 fdt_add_mem_rsv, one * for the fdt itself and 4 for a possible initrd * ((initrd-start + initrd-end) * 2 (name & value)) |
f242a0887 fdt_resize(): ens... |
651 |
*/ |
3082d2348 fdt: refactor fdt... |
652 |
actualsize = fdt_off_dt_strings(blob) + |
3840ebfaf fdt: Fix bug in s... |
653 |
fdt_size_dt_strings(blob) + 5 * sizeof(struct fdt_reserve_entry); |
3082d2348 fdt: refactor fdt... |
654 |
|
ef4768364 cmd/fdt: add poss... |
655 |
actualsize += extrasize; |
3082d2348 fdt: refactor fdt... |
656 |
/* Make it so the fdt ends on a page boundary */ |
925493582 sandbox: Use uint... |
657 658 |
actualsize = ALIGN(actualsize + ((uintptr_t)blob & 0xfff), 0x1000); actualsize = actualsize - ((uintptr_t)blob & 0xfff); |
3082d2348 fdt: refactor fdt... |
659 660 661 |
/* Change the fdt header to reflect the correct size */ fdt_set_totalsize(blob, actualsize); |
59bd79680 fdt_shrink_to_min... |
662 663 664 665 666 667 |
if (fdt_memrsv) { /* Add the new reservation */ ret = fdt_add_mem_rsv(blob, map_to_sysmem(blob), actualsize); if (ret < 0) return ret; } |
3082d2348 fdt: refactor fdt... |
668 669 670 |
return actualsize; } |
8ab451c46 fdt: Added helper... |
671 672 |
#ifdef CONFIG_PCI |
cfd700be9 fdt: Fix fdt_pci_... |
673 |
#define CONFIG_SYS_PCI_NR_INBOUND_WIN 4 |
8ab451c46 fdt: Added helper... |
674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 |
#define FDT_PCI_PREFETCH (0x40000000) #define FDT_PCI_MEM32 (0x02000000) #define FDT_PCI_IO (0x01000000) #define FDT_PCI_MEM64 (0x03000000) int fdt_pci_dma_ranges(void *blob, int phb_off, struct pci_controller *hose) { int addrcell, sizecell, len, r; u32 *dma_range; /* sized based on pci addr cells, size-cells, & address-cells */ u32 dma_ranges[(3 + 2 + 2) * CONFIG_SYS_PCI_NR_INBOUND_WIN]; addrcell = fdt_getprop_u32_default(blob, "/", "#address-cells", 1); sizecell = fdt_getprop_u32_default(blob, "/", "#size-cells", 1); dma_range = &dma_ranges[0]; for (r = 0; r < hose->region_count; r++) { u64 bus_start, phys_start, size; |
ff4e66e93 pci: Rename PCI_R... |
693 694 |
/* skip if !PCI_REGION_SYS_MEMORY */ if (!(hose->regions[r].flags & PCI_REGION_SYS_MEMORY)) |
8ab451c46 fdt: Added helper... |
695 696 697 698 699 700 701 |
continue; bus_start = (u64)hose->regions[r].bus_start; phys_start = (u64)hose->regions[r].phys_start; size = (u64)hose->regions[r].size; dma_range[0] = 0; |
cfd700be9 fdt: Fix fdt_pci_... |
702 |
if (size >= 0x100000000ull) |
867aaf680 common: fdt_suppo... |
703 |
dma_range[0] |= cpu_to_fdt32(FDT_PCI_MEM64); |
8ab451c46 fdt: Added helper... |
704 |
else |
867aaf680 common: fdt_suppo... |
705 |
dma_range[0] |= cpu_to_fdt32(FDT_PCI_MEM32); |
8ab451c46 fdt: Added helper... |
706 |
if (hose->regions[r].flags & PCI_REGION_PREFETCH) |
867aaf680 common: fdt_suppo... |
707 |
dma_range[0] |= cpu_to_fdt32(FDT_PCI_PREFETCH); |
8ab451c46 fdt: Added helper... |
708 |
#ifdef CONFIG_SYS_PCI_64BIT |
867aaf680 common: fdt_suppo... |
709 |
dma_range[1] = cpu_to_fdt32(bus_start >> 32); |
8ab451c46 fdt: Added helper... |
710 711 712 |
#else dma_range[1] = 0; #endif |
867aaf680 common: fdt_suppo... |
713 |
dma_range[2] = cpu_to_fdt32(bus_start & 0xffffffff); |
8ab451c46 fdt: Added helper... |
714 715 |
if (addrcell == 2) { |
867aaf680 common: fdt_suppo... |
716 717 |
dma_range[3] = cpu_to_fdt32(phys_start >> 32); dma_range[4] = cpu_to_fdt32(phys_start & 0xffffffff); |
8ab451c46 fdt: Added helper... |
718 |
} else { |
867aaf680 common: fdt_suppo... |
719 |
dma_range[3] = cpu_to_fdt32(phys_start & 0xffffffff); |
8ab451c46 fdt: Added helper... |
720 721 722 |
} if (sizecell == 2) { |
867aaf680 common: fdt_suppo... |
723 724 725 726 |
dma_range[3 + addrcell + 0] = cpu_to_fdt32(size >> 32); dma_range[3 + addrcell + 1] = cpu_to_fdt32(size & 0xffffffff); |
8ab451c46 fdt: Added helper... |
727 |
} else { |
867aaf680 common: fdt_suppo... |
728 729 |
dma_range[3 + addrcell + 0] = cpu_to_fdt32(size & 0xffffffff); |
8ab451c46 fdt: Added helper... |
730 731 732 733 734 735 736 737 738 739 740 741 |
} dma_range += (3 + addrcell + sizecell); } len = dma_range - &dma_ranges[0]; if (len) fdt_setprop(blob, phb_off, "dma-ranges", &dma_ranges[0], len*4); return 0; } #endif |
30d45c0d3 fdt: Add fdt_fixu... |
742 |
|
cb2707af7 common/fdt_suppor... |
743 744 745 746 747 748 749 750 751 |
int fdt_increase_size(void *fdt, int add_len) { int newlen; newlen = fdt_totalsize(fdt) + add_len; /* Open in place with a new len */ return fdt_open_into(fdt, fdt, newlen); } |
3c950e2eb fdt_support: add ... |
752 753 754 |
#ifdef CONFIG_FDT_FIXUP_PARTITIONS #include <jffs2/load_kernel.h> #include <mtd_node.h> |
cd1457d74 common: fdt: Make... |
755 |
static int fdt_del_subnodes(const void *blob, int parent_offset) |
3c950e2eb fdt_support: add ... |
756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 |
{ int off, ndepth; int ret; for (ndepth = 0, off = fdt_next_node(blob, parent_offset, &ndepth); (off >= 0) && (ndepth > 0); off = fdt_next_node(blob, off, &ndepth)) { if (ndepth == 1) { debug("delete %s: offset: %x ", fdt_get_name(blob, off, 0), off); ret = fdt_del_node((void *)blob, off); if (ret < 0) { printf("Can't delete node: %s ", fdt_strerror(ret)); return ret; } else { ndepth = 0; off = parent_offset; } } } return 0; } |
cd1457d74 common: fdt: Make... |
781 |
static int fdt_del_partitions(void *blob, int parent_offset) |
3c950e2eb fdt_support: add ... |
782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 |
{ const void *prop; int ndepth = 0; int off; int ret; off = fdt_next_node(blob, parent_offset, &ndepth); if (off > 0 && ndepth == 1) { prop = fdt_getprop(blob, off, "label", NULL); if (prop == NULL) { /* * Could not find label property, nand {}; node? * Check subnode, delete partitions there if any. */ return fdt_del_partitions(blob, off); } else { ret = fdt_del_subnodes(blob, parent_offset); if (ret < 0) { printf("Can't remove subnodes: %s ", fdt_strerror(ret)); return ret; } } } return 0; } int fdt_node_set_part_info(void *blob, int parent_offset, struct mtd_device *dev) { struct list_head *pentry; struct part_info *part; |
3c950e2eb fdt_support: add ... |
815 816 |
int off, ndepth = 0; int part_num, ret; |
3a9a62a18 common: fdt_suppo... |
817 |
int sizecell; |
3c950e2eb fdt_support: add ... |
818 819 820 821 822 823 824 |
char buf[64]; ret = fdt_del_partitions(blob, parent_offset); if (ret < 0) return ret; /* |
3a9a62a18 common: fdt_suppo... |
825 826 827 828 829 830 831 |
* Check if size/address is 1 or 2 cells. * We assume #address-cells and #size-cells have same value. */ sizecell = fdt_getprop_u32_default_node(blob, parent_offset, 0, "#size-cells", 1); /* |
3c950e2eb fdt_support: add ... |
832 833 834 835 836 837 838 839 840 841 842 843 |
* Check if it is nand {}; subnode, adjust * the offset in this case */ off = fdt_next_node(blob, parent_offset, &ndepth); if (off > 0 && ndepth == 1) parent_offset = off; part_num = 0; list_for_each_prev(pentry, &dev->parts) { int newoff; part = list_entry(pentry, struct part_info, link); |
06503f16c mtd: fix warnings... |
844 845 |
debug("%2d: %-20s0x%08llx\t0x%08llx\t%d ", |
3c950e2eb fdt_support: add ... |
846 847 |
part_num, part->name, part->size, part->offset, part->mask_flags); |
06503f16c mtd: fix warnings... |
848 |
sprintf(buf, "partition@%llx", part->offset); |
3c950e2eb fdt_support: add ... |
849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 |
add_sub: ret = fdt_add_subnode(blob, parent_offset, buf); if (ret == -FDT_ERR_NOSPACE) { ret = fdt_increase_size(blob, 512); if (!ret) goto add_sub; else goto err_size; } else if (ret < 0) { printf("Can't add partition node: %s ", fdt_strerror(ret)); return ret; } newoff = ret; /* Check MTD_WRITEABLE_CMD flag */ if (part->mask_flags & 1) { add_ro: ret = fdt_setprop(blob, newoff, "read_only", NULL, 0); if (ret == -FDT_ERR_NOSPACE) { ret = fdt_increase_size(blob, 512); if (!ret) goto add_ro; else goto err_size; } else if (ret < 0) goto err_prop; } |
3c950e2eb fdt_support: add ... |
878 |
add_reg: |
3a9a62a18 common: fdt_suppo... |
879 880 881 882 883 884 885 886 887 888 889 890 891 |
if (sizecell == 2) { ret = fdt_setprop_u64(blob, newoff, "reg", part->offset); if (!ret) ret = fdt_appendprop_u64(blob, newoff, "reg", part->size); } else { ret = fdt_setprop_u32(blob, newoff, "reg", part->offset); if (!ret) ret = fdt_appendprop_u32(blob, newoff, "reg", part->size); } |
3c950e2eb fdt_support: add ... |
892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 |
if (ret == -FDT_ERR_NOSPACE) { ret = fdt_increase_size(blob, 512); if (!ret) goto add_reg; else goto err_size; } else if (ret < 0) goto err_prop; add_label: ret = fdt_setprop_string(blob, newoff, "label", part->name); if (ret == -FDT_ERR_NOSPACE) { ret = fdt_increase_size(blob, 512); if (!ret) goto add_label; else goto err_size; } else if (ret < 0) goto err_prop; part_num++; } return 0; err_size: printf("Can't increase blob size: %s ", fdt_strerror(ret)); return ret; err_prop: printf("Can't add property: %s ", fdt_strerror(ret)); return ret; } /* * Update partitions in nor/nand nodes using info from * mtdparts environment variable. The nodes to update are * specified by node_info structure which contains mtd device * type and compatible string: E. g. the board code in * ft_board_setup() could use: * * struct node_info nodes[] = { * { "fsl,mpc5121-nfc", MTD_DEV_TYPE_NAND, }, * { "cfi-flash", MTD_DEV_TYPE_NOR, }, * }; * * fdt_fixup_mtdparts(blob, nodes, ARRAY_SIZE(nodes)); */ |
5f4e32d05 fdt_support: make... |
939 940 |
void fdt_fixup_mtdparts(void *blob, const struct node_info *node_info, int node_info_size) |
3c950e2eb fdt_support: add ... |
941 |
{ |
3c950e2eb fdt_support: add ... |
942 |
struct mtd_device *dev; |
3c950e2eb fdt_support: add ... |
943 944 |
int i, idx; int noff; |
3c950e2eb fdt_support: add ... |
945 946 947 948 949 |
if (mtdparts_init() != 0) return; for (i = 0; i < node_info_size; i++) { idx = 0; |
5f4e32d05 fdt_support: make... |
950 951 |
noff = fdt_node_offset_by_compatible(blob, -1, node_info[i].compat); |
3c950e2eb fdt_support: add ... |
952 953 954 955 |
while (noff != -FDT_ERR_NOTFOUND) { debug("%s: %s, mtd dev type %d ", fdt_get_name(blob, noff, 0), |
5f4e32d05 fdt_support: make... |
956 957 |
node_info[i].compat, node_info[i].type); dev = device_find(node_info[i].type, idx++); |
3c950e2eb fdt_support: add ... |
958 959 960 961 962 963 964 |
if (dev) { if (fdt_node_set_part_info(blob, noff, dev)) return; /* return on error */ } /* Jump to next flash node */ noff = fdt_node_offset_by_compatible(blob, noff, |
5f4e32d05 fdt_support: make... |
965 |
node_info[i].compat); |
3c950e2eb fdt_support: add ... |
966 967 968 969 |
} } } #endif |
49b97d9c8 fdt: Add fdt_del_... |
970 971 972 973 974 975 976 977 978 979 980 981 982 |
void fdt_del_node_and_alias(void *blob, const char *alias) { int off = fdt_path_offset(blob, alias); if (off < 0) return; fdt_del_node(blob, off); off = fdt_path_offset(blob, "/aliases"); fdt_delprop(blob, off, alias); } |
a0342c080 fdt: Add fdt_tran... |
983 |
|
a0342c080 fdt: Add fdt_tran... |
984 985 |
/* Max address size we deal with */ #define OF_MAX_ADDR_CELLS 4 |
a0ae380b3 fdt: Change OF_BA... |
986 |
#define OF_BAD_ADDR FDT_ADDR_T_NONE |
4428f3c87 Revert "fdt: fix ... |
987 988 |
#define OF_CHECK_COUNTS(na, ns) ((na) > 0 && (na) <= OF_MAX_ADDR_CELLS && \ (ns) > 0) |
a0342c080 fdt: Add fdt_tran... |
989 990 991 |
/* Debug utility */ #ifdef DEBUG |
8aa5ec6e1 common/fdt_suppor... |
992 |
static void of_dump_addr(const char *s, const fdt32_t *addr, int na) |
a0342c080 fdt: Add fdt_tran... |
993 994 995 996 997 998 999 1000 |
{ printf("%s", s); while(na--) printf(" %08x", *(addr++)); printf(" "); } #else |
8aa5ec6e1 common/fdt_suppor... |
1001 |
static void of_dump_addr(const char *s, const fdt32_t *addr, int na) { } |
a0342c080 fdt: Add fdt_tran... |
1002 |
#endif |
0a222d53d fdt: Support for ... |
1003 1004 |
/** * struct of_bus - Callbacks for bus specific translators |
49717b18b fdt: Document the... |
1005 1006 1007 |
* @name: A string used to identify this bus in debug output. * @addresses: The name of the DT property from which addresses are * to be read, typically "reg". |
0a222d53d fdt: Support for ... |
1008 1009 1010 1011 |
* @match: Return non-zero if the node whose parent is at * parentoffset in the FDT blob corresponds to a bus * of this type, otherwise return zero. If NULL a match * is assumed. |
49717b18b fdt: Document the... |
1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 |
* @count_cells:Count how many cells (be32 values) a node whose parent * is at parentoffset in the FDT blob will require to * represent its address (written to *addrc) & size * (written to *sizec). * @map: Map the address addr from the address space of this * bus to that of its parent, making use of the ranges * read from DT to an array at range. na and ns are the * number of cells (be32 values) used to hold and address * or size, respectively, for this bus. pna is the number * of cells used to hold an address for the parent bus. * Returns the address in the address space of the parent * bus. * @translate: Update the value of the address cells at addr within an * FDT by adding offset to it. na specifies the number of * cells used to hold the address being translated. Returns * zero on success, non-zero on error. |
0a222d53d fdt: Support for ... |
1028 1029 1030 1031 1032 |
* * Each bus type will include a struct of_bus in the of_busses array, * providing implementations of some or all of the functions used to * match the bus & handle address translation for its children. */ |
a0342c080 fdt: Add fdt_tran... |
1033 1034 1035 |
struct of_bus { const char *name; const char *addresses; |
11e44fc6b fdt_support: fdt_... |
1036 1037 |
int (*match)(const void *blob, int parentoffset); void (*count_cells)(const void *blob, int parentoffset, |
a0342c080 fdt: Add fdt_tran... |
1038 |
int *addrc, int *sizec); |
8aa5ec6e1 common/fdt_suppor... |
1039 |
u64 (*map)(fdt32_t *addr, const fdt32_t *range, |
a0342c080 fdt: Add fdt_tran... |
1040 |
int na, int ns, int pna); |
8aa5ec6e1 common/fdt_suppor... |
1041 |
int (*translate)(fdt32_t *addr, u64 offset, int na); |
a0342c080 fdt: Add fdt_tran... |
1042 1043 1044 |
}; /* Default translator (generic bus) */ |
eed36609b fdt: Rename a few... |
1045 |
void fdt_support_default_count_cells(const void *blob, int parentoffset, |
a0342c080 fdt: Add fdt_tran... |
1046 1047 |
int *addrc, int *sizec) { |
8aa5ec6e1 common/fdt_suppor... |
1048 |
const fdt32_t *prop; |
6395f318e fdt: call fdt_par... |
1049 |
|
933cdbb47 fdt: Try to use f... |
1050 1051 |
if (addrc) *addrc = fdt_address_cells(blob, parentoffset); |
6395f318e fdt: call fdt_par... |
1052 1053 1054 1055 |
if (sizec) { prop = fdt_getprop(blob, parentoffset, "#size-cells", NULL); if (prop) |
8aa5ec6e1 common/fdt_suppor... |
1056 |
*sizec = be32_to_cpup(prop); |
6395f318e fdt: call fdt_par... |
1057 1058 1059 |
else *sizec = 1; } |
a0342c080 fdt: Add fdt_tran... |
1060 |
} |
8aa5ec6e1 common/fdt_suppor... |
1061 |
static u64 of_bus_default_map(fdt32_t *addr, const fdt32_t *range, |
a0342c080 fdt: Add fdt_tran... |
1062 1063 1064 |
int na, int ns, int pna) { u64 cp, s, da; |
eed36609b fdt: Rename a few... |
1065 1066 1067 |
cp = fdt_read_number(range, na); s = fdt_read_number(range + na + pna, ns); da = fdt_read_number(addr, na); |
a0342c080 fdt: Add fdt_tran... |
1068 |
|
d8e9cf4d4 common: fdt_suppo... |
1069 1070 |
debug("OF: default map, cp=%llx, s=%llx, da=%llx ", cp, s, da); |
a0342c080 fdt: Add fdt_tran... |
1071 1072 1073 1074 1075 |
if (da < cp || da >= (cp + s)) return OF_BAD_ADDR; return da - cp; } |
8aa5ec6e1 common/fdt_suppor... |
1076 |
static int of_bus_default_translate(fdt32_t *addr, u64 offset, int na) |
a0342c080 fdt: Add fdt_tran... |
1077 |
{ |
eed36609b fdt: Rename a few... |
1078 |
u64 a = fdt_read_number(addr, na); |
a0342c080 fdt: Add fdt_tran... |
1079 1080 1081 |
memset(addr, 0, na * 4); a += offset; if (na > 1) |
8aa5ec6e1 common/fdt_suppor... |
1082 1083 |
addr[na - 2] = cpu_to_fdt32(a >> 32); addr[na - 1] = cpu_to_fdt32(a & 0xffffffffu); |
a0342c080 fdt: Add fdt_tran... |
1084 1085 1086 |
return 0; } |
0a222d53d fdt: Support for ... |
1087 1088 1089 |
#ifdef CONFIG_OF_ISA_BUS /* ISA bus translator */ |
11e44fc6b fdt_support: fdt_... |
1090 |
static int of_bus_isa_match(const void *blob, int parentoffset) |
0a222d53d fdt: Support for ... |
1091 1092 1093 1094 1095 1096 1097 1098 1099 |
{ const char *name; name = fdt_get_name(blob, parentoffset, NULL); if (!name) return 0; return !strcmp(name, "isa"); } |
11e44fc6b fdt_support: fdt_... |
1100 |
static void of_bus_isa_count_cells(const void *blob, int parentoffset, |
0a222d53d fdt: Support for ... |
1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 |
int *addrc, int *sizec) { if (addrc) *addrc = 2; if (sizec) *sizec = 1; } static u64 of_bus_isa_map(fdt32_t *addr, const fdt32_t *range, int na, int ns, int pna) { u64 cp, s, da; /* Check address type match */ if ((addr[0] ^ range[0]) & cpu_to_be32(1)) return OF_BAD_ADDR; |
eed36609b fdt: Rename a few... |
1117 1118 1119 |
cp = fdt_read_number(range + 1, na - 1); s = fdt_read_number(range + na + pna, ns); da = fdt_read_number(addr + 1, na - 1); |
0a222d53d fdt: Support for ... |
1120 |
|
d8e9cf4d4 common: fdt_suppo... |
1121 1122 |
debug("OF: ISA map, cp=%llx, s=%llx, da=%llx ", cp, s, da); |
0a222d53d fdt: Support for ... |
1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 |
if (da < cp || da >= (cp + s)) return OF_BAD_ADDR; return da - cp; } static int of_bus_isa_translate(fdt32_t *addr, u64 offset, int na) { return of_bus_default_translate(addr + 1, offset, na - 1); } #endif /* CONFIG_OF_ISA_BUS */ |
a0342c080 fdt: Add fdt_tran... |
1135 1136 |
/* Array of bus specific translators */ static struct of_bus of_busses[] = { |
0a222d53d fdt: Support for ... |
1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 |
#ifdef CONFIG_OF_ISA_BUS /* ISA */ { .name = "isa", .addresses = "reg", .match = of_bus_isa_match, .count_cells = of_bus_isa_count_cells, .map = of_bus_isa_map, .translate = of_bus_isa_translate, }, #endif /* CONFIG_OF_ISA_BUS */ |
a0342c080 fdt: Add fdt_tran... |
1148 1149 1150 1151 |
/* Default */ { .name = "default", .addresses = "reg", |
eed36609b fdt: Rename a few... |
1152 |
.count_cells = fdt_support_default_count_cells, |
a0342c080 fdt: Add fdt_tran... |
1153 1154 1155 1156 |
.map = of_bus_default_map, .translate = of_bus_default_translate, }, }; |
11e44fc6b fdt_support: fdt_... |
1157 |
static struct of_bus *of_match_bus(const void *blob, int parentoffset) |
0a222d53d fdt: Support for ... |
1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 |
{ struct of_bus *bus; if (ARRAY_SIZE(of_busses) == 1) return of_busses; for (bus = of_busses; bus; bus++) { if (!bus->match || bus->match(blob, parentoffset)) return bus; } /* * We should always have matched the default bus at least, since * it has a NULL match field. If we didn't then it somehow isn't * in the of_busses array or something equally catastrophic has * gone wrong. */ assert(0); return NULL; } |
11e44fc6b fdt_support: fdt_... |
1178 |
static int of_translate_one(const void *blob, int parent, struct of_bus *bus, |
8aa5ec6e1 common/fdt_suppor... |
1179 |
struct of_bus *pbus, fdt32_t *addr, |
a0342c080 fdt: Add fdt_tran... |
1180 1181 |
int na, int ns, int pna, const char *rprop) { |
8aa5ec6e1 common/fdt_suppor... |
1182 |
const fdt32_t *ranges; |
a0342c080 fdt: Add fdt_tran... |
1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 |
int rlen; int rone; u64 offset = OF_BAD_ADDR; /* Normally, an absence of a "ranges" property means we are * crossing a non-translatable boundary, and thus the addresses * below the current not cannot be converted to CPU physical ones. * Unfortunately, while this is very clear in the spec, it's not * what Apple understood, and they do have things like /uni-n or * /ht nodes with no "ranges" property and a lot of perfectly * useable mapped devices below them. Thus we treat the absence of * "ranges" as equivalent to an empty "ranges" property which means * a 1:1 translation at that level. It's up to the caller not to try * to translate addresses that aren't supposed to be translated in * the first place. --BenH. */ |
8aa5ec6e1 common/fdt_suppor... |
1199 |
ranges = fdt_getprop(blob, parent, rprop, &rlen); |
a0342c080 fdt: Add fdt_tran... |
1200 |
if (ranges == NULL || rlen == 0) { |
eed36609b fdt: Rename a few... |
1201 |
offset = fdt_read_number(addr, na); |
a0342c080 fdt: Add fdt_tran... |
1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 |
memset(addr, 0, pna * 4); debug("OF: no ranges, 1:1 translation "); goto finish; } debug("OF: walking ranges... "); /* Now walk through the ranges */ rlen /= 4; rone = na + pna + ns; for (; rlen >= rone; rlen -= rone, ranges += rone) { offset = bus->map(addr, ranges, na, ns, pna); if (offset != OF_BAD_ADDR) break; } if (offset == OF_BAD_ADDR) { debug("OF: not found ! "); return 1; } memcpy(addr, ranges + na, 4 * pna); finish: of_dump_addr("OF: parent translation for:", addr, pna); |
dee37fc99 Remove <inttypes.... |
1228 1229 |
debug("OF: with offset: %llu ", offset); |
a0342c080 fdt: Add fdt_tran... |
1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 |
/* Translate it into parent bus space */ return pbus->translate(addr, offset, pna); } /* * Translate an address from the device-tree into a CPU physical address, * this walks up the tree and applies the various bus mappings on the * way. * * Note: We consider that crossing any level with #size-cells == 0 to mean * that translation is impossible (that is we are not dealing with a value * that can be mapped to a cpu physical address). This is not really specified * that way, but this is traditionally the way IBM at least do things */ |
11e44fc6b fdt_support: fdt_... |
1245 1246 |
static u64 __of_translate_address(const void *blob, int node_offset, const fdt32_t *in_addr, const char *rprop) |
a0342c080 fdt: Add fdt_tran... |
1247 1248 1249 |
{ int parent; struct of_bus *bus, *pbus; |
8aa5ec6e1 common/fdt_suppor... |
1250 |
fdt32_t addr[OF_MAX_ADDR_CELLS]; |
a0342c080 fdt: Add fdt_tran... |
1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 |
int na, ns, pna, pns; u64 result = OF_BAD_ADDR; debug("OF: ** translation for device %s ** ", fdt_get_name(blob, node_offset, NULL)); /* Get parent & match bus type */ parent = fdt_parent_offset(blob, node_offset); if (parent < 0) goto bail; |
0a222d53d fdt: Support for ... |
1262 |
bus = of_match_bus(blob, parent); |
a0342c080 fdt: Add fdt_tran... |
1263 1264 |
/* Cound address cells & copy address locally */ |
6395f318e fdt: call fdt_par... |
1265 |
bus->count_cells(blob, parent, &na, &ns); |
4428f3c87 Revert "fdt: fix ... |
1266 |
if (!OF_CHECK_COUNTS(na, ns)) { |
a0342c080 fdt: Add fdt_tran... |
1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 |
printf("%s: Bad cell count for %s ", __FUNCTION__, fdt_get_name(blob, node_offset, NULL)); goto bail; } memcpy(addr, in_addr, na * 4); debug("OF: bus is %s (na=%d, ns=%d) on %s ", bus->name, na, ns, fdt_get_name(blob, parent, NULL)); of_dump_addr("OF: translating address:", addr, na); /* Translate */ for (;;) { /* Switch to parent bus */ node_offset = parent; parent = fdt_parent_offset(blob, node_offset); /* If root, we have finished */ if (parent < 0) { debug("OF: reached root node "); |
eed36609b fdt: Rename a few... |
1289 |
result = fdt_read_number(addr, na); |
a0342c080 fdt: Add fdt_tran... |
1290 1291 1292 1293 |
break; } /* Get new parent bus and counts */ |
0a222d53d fdt: Support for ... |
1294 |
pbus = of_match_bus(blob, parent); |
6395f318e fdt: call fdt_par... |
1295 |
pbus->count_cells(blob, parent, &pna, &pns); |
4428f3c87 Revert "fdt: fix ... |
1296 |
if (!OF_CHECK_COUNTS(pna, pns)) { |
a0342c080 fdt: Add fdt_tran... |
1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 |
printf("%s: Bad cell count for %s ", __FUNCTION__, fdt_get_name(blob, node_offset, NULL)); break; } debug("OF: parent bus is %s (na=%d, ns=%d) on %s ", pbus->name, pna, pns, fdt_get_name(blob, parent, NULL)); /* Apply bus translation */ if (of_translate_one(blob, node_offset, bus, pbus, addr, na, ns, pna, rprop)) break; /* Complete the move up one level */ na = pna; ns = pns; bus = pbus; of_dump_addr("OF: one level translation:", addr, na); } bail: return result; } |
11e44fc6b fdt_support: fdt_... |
1323 1324 |
u64 fdt_translate_address(const void *blob, int node_offset, const fdt32_t *in_addr) |
a0342c080 fdt: Add fdt_tran... |
1325 1326 1327 |
{ return __of_translate_address(blob, node_offset, in_addr, "ranges"); } |
75e73afd5 fdt: Add fdt_node... |
1328 |
|
641067fb0 dm: core: Introdu... |
1329 1330 1331 1332 1333 |
u64 fdt_translate_dma_address(const void *blob, int node_offset, const fdt32_t *in_addr) { return __of_translate_address(blob, node_offset, in_addr, "dma-ranges"); } |
75e73afd5 fdt: Add fdt_node... |
1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 |
/** * fdt_node_offset_by_compat_reg: Find a node that matches compatiable and * who's reg property matches a physical cpu address * * @blob: ptr to device tree * @compat: compatiable string to match * @compat_off: property name * */ int fdt_node_offset_by_compat_reg(void *blob, const char *compat, phys_addr_t compat_off) { int len, off = fdt_node_offset_by_compatible(blob, -1, compat); while (off != -FDT_ERR_NOTFOUND) { |
8aa5ec6e1 common/fdt_suppor... |
1348 |
const fdt32_t *reg = fdt_getprop(blob, off, "reg", &len); |
75e73afd5 fdt: Add fdt_node... |
1349 1350 1351 1352 1353 1354 1355 1356 1357 |
if (reg) { if (compat_off == fdt_translate_address(blob, off, reg)) return off; } off = fdt_node_offset_by_compatible(blob, off, compat); } return -FDT_ERR_NOTFOUND; } |
b4b847e95 fdt: Add function... |
1358 1359 1360 1361 1362 1363 1364 |
/** * fdt_alloc_phandle: Return next free phandle value * * @blob: ptr to device tree */ int fdt_alloc_phandle(void *blob) { |
b41411954 linux/kernel.h: s... |
1365 1366 |
int offset; uint32_t phandle = 0; |
b4b847e95 fdt: Add function... |
1367 1368 1369 |
for (offset = fdt_next_node(blob, -1, NULL); offset >= 0; offset = fdt_next_node(blob, offset, NULL)) { |
50bf17bd1 fdt: update fdt_a... |
1370 |
phandle = max(phandle, fdt_get_phandle(blob, offset)); |
b4b847e95 fdt: Add function... |
1371 |
} |
75e73afd5 fdt: Add fdt_node... |
1372 |
|
b4b847e95 fdt: Add function... |
1373 1374 |
return phandle + 1; } |
beca5a5f5 fdt_support: supp... |
1375 |
|
a8d2a75d7 fdt: introduce fd... |
1376 |
/* |
f117c0f07 fdt: Rename fdt_c... |
1377 |
* fdt_set_phandle: Create a phandle property for the given node |
a8d2a75d7 fdt: introduce fd... |
1378 1379 1380 1381 |
* * @fdt: ptr to device tree * @nodeoffset: node to update * @phandle: phandle value to set (must be unique) |
f117c0f07 fdt: Rename fdt_c... |
1382 1383 |
*/ int fdt_set_phandle(void *fdt, int nodeoffset, uint32_t phandle) |
a8d2a75d7 fdt: introduce fd... |
1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 |
{ int ret; #ifdef DEBUG int off = fdt_node_offset_by_phandle(fdt, phandle); if ((off >= 0) && (off != nodeoffset)) { char buf[64]; fdt_get_path(fdt, nodeoffset, buf, sizeof(buf)); printf("Trying to update node %s with phandle %u ", buf, phandle); fdt_get_path(fdt, off, buf, sizeof(buf)); printf("that already exists in node %s. ", buf); return -FDT_ERR_BADPHANDLE; } #endif ret = fdt_setprop_cell(fdt, nodeoffset, "phandle", phandle); if (ret < 0) return ret; /* * For now, also set the deprecated "linux,phandle" property, so that we * don't break older kernels. */ ret = fdt_setprop_cell(fdt, nodeoffset, "linux,phandle", phandle); return ret; } |
10aeabd18 fdt: Add new fdt_... |
1416 1417 1418 1419 1420 1421 |
/* * fdt_create_phandle: Create a phandle property for the given node * * @fdt: ptr to device tree * @nodeoffset: node to update */ |
3c927cccd fdt: check for fd... |
1422 |
unsigned int fdt_create_phandle(void *fdt, int nodeoffset) |
10aeabd18 fdt: Add new fdt_... |
1423 1424 1425 1426 1427 1428 |
{ /* see if there is a phandle already */ int phandle = fdt_get_phandle(fdt, nodeoffset); /* if we got 0, means no phandle so create one */ if (phandle == 0) { |
3c927cccd fdt: check for fd... |
1429 |
int ret; |
10aeabd18 fdt: Add new fdt_... |
1430 |
phandle = fdt_alloc_phandle(fdt); |
3c927cccd fdt: check for fd... |
1431 1432 1433 1434 1435 1436 1437 |
ret = fdt_set_phandle(fdt, nodeoffset, phandle); if (ret < 0) { printf("Can't set phandle %u: %s ", phandle, fdt_strerror(ret)); return 0; } |
10aeabd18 fdt: Add new fdt_... |
1438 1439 1440 1441 |
} return phandle; } |
2a523f524 fdt: Add new fdt_... |
1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 |
/* * fdt_set_node_status: Set status for the given node * * @fdt: ptr to device tree * @nodeoffset: node to update * @status: FDT_STATUS_OKAY, FDT_STATUS_DISABLED, * FDT_STATUS_FAIL, FDT_STATUS_FAIL_ERROR_CODE * @error_code: optional, only used if status is FDT_STATUS_FAIL_ERROR_CODE */ int fdt_set_node_status(void *fdt, int nodeoffset, enum fdt_status status, unsigned int error_code) { char buf[16]; int ret = 0; if (nodeoffset < 0) return nodeoffset; switch (status) { case FDT_STATUS_OKAY: ret = fdt_setprop_string(fdt, nodeoffset, "status", "okay"); break; case FDT_STATUS_DISABLED: ret = fdt_setprop_string(fdt, nodeoffset, "status", "disabled"); break; case FDT_STATUS_FAIL: ret = fdt_setprop_string(fdt, nodeoffset, "status", "fail"); break; case FDT_STATUS_FAIL_ERROR_CODE: sprintf(buf, "fail-%d", error_code); ret = fdt_setprop_string(fdt, nodeoffset, "status", buf); break; default: printf("Invalid fdt status: %x ", status); ret = -1; break; } return ret; } /* * fdt_set_status_by_alias: Set status for the given node given an alias * * @fdt: ptr to device tree * @alias: alias of node to update * @status: FDT_STATUS_OKAY, FDT_STATUS_DISABLED, * FDT_STATUS_FAIL, FDT_STATUS_FAIL_ERROR_CODE * @error_code: optional, only used if status is FDT_STATUS_FAIL_ERROR_CODE */ int fdt_set_status_by_alias(void *fdt, const char* alias, enum fdt_status status, unsigned int error_code) { int offset = fdt_path_offset(fdt, alias); return fdt_set_node_status(fdt, offset, status, error_code); } |
096eb3f59 fdt: edid: Enable... |
1500 |
#if defined(CONFIG_VIDEO) || defined(CONFIG_LCD) |
beca5a5f5 fdt_support: supp... |
1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 |
int fdt_add_edid(void *blob, const char *compat, unsigned char *edid_buf) { int noff; int ret; noff = fdt_node_offset_by_compatible(blob, -1, compat); if (noff != -FDT_ERR_NOTFOUND) { debug("%s: %s ", fdt_get_name(blob, noff, 0), compat); add_edid: ret = fdt_setprop(blob, noff, "edid", edid_buf, 128); if (ret == -FDT_ERR_NOSPACE) { ret = fdt_increase_size(blob, 512); if (!ret) goto add_edid; else goto err_size; } else if (ret < 0) { printf("Can't add property: %s ", fdt_strerror(ret)); return ret; } } return 0; err_size: printf("Can't increase blob size: %s ", fdt_strerror(ret)); return ret; } #endif |
bb682001f fdt: introduce fd... |
1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 |
/* * Verify the physical address of device tree node for a given alias * * This function locates the device tree node of a given alias, and then * verifies that the physical address of that device matches the given * parameter. It displays a message if there is a mismatch. * * Returns 1 on success, 0 on failure */ int fdt_verify_alias_address(void *fdt, int anode, const char *alias, u64 addr) { const char *path; |
8aa5ec6e1 common/fdt_suppor... |
1544 |
const fdt32_t *reg; |
bb682001f fdt: introduce fd... |
1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 |
int node, len; u64 dt_addr; path = fdt_getprop(fdt, anode, alias, NULL); if (!path) { /* If there's no such alias, then it's not a failure */ return 1; } node = fdt_path_offset(fdt, path); if (node < 0) { printf("Warning: device tree alias '%s' points to invalid " "node %s. ", alias, path); return 0; } reg = fdt_getprop(fdt, node, "reg", &len); if (!reg) { printf("Warning: device tree node '%s' has no address. ", path); return 0; } dt_addr = fdt_translate_address(fdt, node, reg); if (addr != dt_addr) { |
dee37fc99 Remove <inttypes.... |
1572 1573 1574 1575 1576 |
printf("Warning: U-Boot configured device %s at address %llu, " "but the device tree has it address %llx. ", alias, addr, dt_addr); |
bb682001f fdt: introduce fd... |
1577 1578 1579 1580 1581 1582 1583 1584 1585 |
return 0; } return 1; } /* * Returns the base address of an SOC or PCI node */ |
ec002119c fdt: Update fdt_g... |
1586 |
u64 fdt_get_base_address(const void *fdt, int node) |
bb682001f fdt: introduce fd... |
1587 1588 |
{ int size; |
8aa5ec6e1 common/fdt_suppor... |
1589 |
const fdt32_t *prop; |
bb682001f fdt: introduce fd... |
1590 |
|
336a44877 fdt: Correct fdt_... |
1591 |
prop = fdt_getprop(fdt, node, "reg", &size); |
bb682001f fdt: introduce fd... |
1592 |
|
e3665ba9d fdt: make fdt_get... |
1593 |
return prop ? fdt_translate_address(fdt, node, prop) : OF_BAD_ADDR; |
bb682001f fdt: introduce fd... |
1594 |
} |
c48e68688 fdt_support: Add ... |
1595 1596 1597 1598 1599 1600 1601 1602 |
/* * Read a property of size <prop_len>. Currently only supports 1 or 2 cells. */ static int fdt_read_prop(const fdt32_t *prop, int prop_len, int cell_off, uint64_t *val, int cells) { const fdt32_t *prop32 = &prop[cell_off]; |
d60ae4c59 fdt: Fix alignmen... |
1603 |
const unaligned_fdt64_t *prop64 = (const fdt64_t *)&prop[cell_off]; |
c48e68688 fdt_support: Add ... |
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if ((cell_off + cells) > prop_len) return -FDT_ERR_NOSPACE; switch (cells) { case 1: *val = fdt32_to_cpu(*prop32); break; case 2: *val = fdt64_to_cpu(*prop64); break; default: return -FDT_ERR_NOSPACE; } return 0; } /** * fdt_read_range - Read a node's n'th range property * * @fdt: ptr to device tree * @node: offset of node * @n: range index * @child_addr: pointer to storage for the "child address" field * @addr: pointer to storage for the CPU view translated physical start * @len: pointer to storage for the range length * * Convenience function that reads and interprets a specific range out of * a number of the "ranges" property array. */ int fdt_read_range(void *fdt, int node, int n, uint64_t *child_addr, uint64_t *addr, uint64_t *len) { int pnode = fdt_parent_offset(fdt, node); const fdt32_t *ranges; int pacells; int acells; int scells; int ranges_len; int cell = 0; int r = 0; /* * The "ranges" property is an array of * { <child address> <parent address> <size in child address space> } * * All 3 elements can span a diffent number of cells. Fetch their size. */ pacells = fdt_getprop_u32_default_node(fdt, pnode, 0, "#address-cells", 1); acells = fdt_getprop_u32_default_node(fdt, node, 0, "#address-cells", 1); scells = fdt_getprop_u32_default_node(fdt, node, 0, "#size-cells", 1); /* Now try to get the ranges property */ ranges = fdt_getprop(fdt, node, "ranges", &ranges_len); if (!ranges) return -FDT_ERR_NOTFOUND; ranges_len /= sizeof(uint32_t); /* Jump to the n'th entry */ cell = n * (pacells + acells + scells); /* Read <child address> */ if (child_addr) { r = fdt_read_prop(ranges, ranges_len, cell, child_addr, acells); if (r) return r; } cell += acells; /* Read <parent address> */ if (addr) *addr = fdt_translate_address(fdt, node, ranges + cell); cell += pacells; /* Read <size in child address space> */ if (len) { r = fdt_read_prop(ranges, ranges_len, cell, len, scells); if (r) return r; } return 0; } |
d4f495a88 fdt_support: Add ... |
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/** * fdt_setup_simplefb_node - Fill and enable a simplefb node * * @fdt: ptr to device tree * @node: offset of the simplefb node * @base_address: framebuffer base address * @width: width in pixels * @height: height in pixels * @stride: bytes per line * @format: pixel format string * * Convenience function to fill and enable a simplefb node. */ int fdt_setup_simplefb_node(void *fdt, int node, u64 base_address, u32 width, u32 height, u32 stride, const char *format) { char name[32]; fdt32_t cells[4]; int i, addrc, sizec, ret; |
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fdt_support_default_count_cells(fdt, fdt_parent_offset(fdt, node), &addrc, &sizec); |
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i = 0; if (addrc == 2) cells[i++] = cpu_to_fdt32(base_address >> 32); cells[i++] = cpu_to_fdt32(base_address); if (sizec == 2) cells[i++] = 0; cells[i++] = cpu_to_fdt32(height * stride); ret = fdt_setprop(fdt, node, "reg", cells, sizeof(cells[0]) * i); if (ret < 0) return ret; |
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snprintf(name, sizeof(name), "framebuffer@%llx", base_address); |
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ret = fdt_set_name(fdt, node, name); if (ret < 0) return ret; ret = fdt_setprop_u32(fdt, node, "width", width); if (ret < 0) return ret; ret = fdt_setprop_u32(fdt, node, "height", height); if (ret < 0) return ret; ret = fdt_setprop_u32(fdt, node, "stride", stride); if (ret < 0) return ret; ret = fdt_setprop_string(fdt, node, "format", format); if (ret < 0) return ret; ret = fdt_setprop_string(fdt, node, "status", "okay"); if (ret < 0) return ret; return 0; } |
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/* * Update native-mode in display-timings from display environment variable. * The node to update are specified by path. */ int fdt_fixup_display(void *blob, const char *path, const char *display) { int off, toff; if (!display || !path) return -FDT_ERR_NOTFOUND; toff = fdt_path_offset(blob, path); if (toff >= 0) toff = fdt_subnode_offset(blob, toff, "display-timings"); if (toff < 0) return toff; for (off = fdt_first_subnode(blob, toff); off >= 0; off = fdt_next_subnode(blob, off)) { uint32_t h = fdt_get_phandle(blob, off); debug("%s:0x%x ", fdt_get_name(blob, off, NULL), fdt32_to_cpu(h)); if (strcasecmp(fdt_get_name(blob, off, NULL), display) == 0) return fdt_setprop_u32(blob, toff, "native-mode", h); } return toff; } |
fc7c31891 fdt: Introduce he... |
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#ifdef CONFIG_OF_LIBFDT_OVERLAY /** * fdt_overlay_apply_verbose - Apply an overlay with verbose error reporting * * @fdt: ptr to device tree * @fdto: ptr to device tree overlay * * Convenience function to apply an overlay and display helpful messages * in the case of an error */ int fdt_overlay_apply_verbose(void *fdt, void *fdto) { int err; bool has_symbols; err = fdt_path_offset(fdt, "/__symbols__"); has_symbols = err >= 0; err = fdt_overlay_apply(fdt, fdto); if (err < 0) { printf("failed on fdt_overlay_apply(): %s ", fdt_strerror(err)); if (!has_symbols) { printf("base fdt does did not have a /__symbols__ node "); printf("make sure you've compiled with -@ "); } } return err; } #endif |