X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=include%2Ffdt_support.h;h=ac76939e817d11af6a8dee93d8d8fd29da2e686b;hb=46b5c8ed017958fc387ab86c71ae6c90abb6793c;hp=dbbac0fb6a3d161fbb4c68fad73a62d4ca02ff40;hpb=9ea0a1ee9309054102e61a29e746db672494d385;p=platform%2Fkernel%2Fu-boot.git diff --git a/include/fdt_support.h b/include/fdt_support.h index dbbac0f..ac76939 100644 --- a/include/fdt_support.h +++ b/include/fdt_support.h @@ -7,7 +7,7 @@ #ifndef __FDT_SUPPORT_H #define __FDT_SUPPORT_H -#ifdef CONFIG_OF_LIBFDT +#if defined(CONFIG_OF_LIBFDT) && !defined(USE_HOSTCC) #include #include @@ -18,7 +18,7 @@ * Defined in arch/$(ARCH)/lib/bootm-fdt.c * * @blob: FDT blob to write to - * @return 0 if ok, or -ve FDT_ERR_... on failure + * Return: 0 if ok, or -ve FDT_ERR_... on failure */ int arch_fixup_fdt(void *blob); @@ -37,7 +37,7 @@ u32 fdt_getprop_u32_default(const void *fdt, const char *path, * See doc/device-tree-bindings/root.txt * * @param fdt FDT address in memory - * @return 0 if ok, or -FDT_ERR_... on error + * Return: 0 if ok, or -FDT_ERR_... on error */ int fdt_root(void *fdt); @@ -47,7 +47,7 @@ int fdt_root(void *fdt); * In particular, this adds the kernel command line (bootargs) to the FDT. * * @param fdt FDT address in memory - * @return 0 if ok, or -FDT_ERR_... on error + * Return: 0 if ok, or -FDT_ERR_... on error */ int fdt_chosen(void *fdt); @@ -55,7 +55,7 @@ int fdt_chosen(void *fdt); * Add initrd information to the FDT before booting the OS. * * @param fdt FDT address in memory - * @return 0 if ok, or -FDT_ERR_... on error + * Return: 0 if ok, or -FDT_ERR_... on error */ int fdt_initrd(void *fdt, ulong initrd_start, ulong initrd_end); @@ -89,7 +89,7 @@ void do_fixup_by_compat_u32(void *fdt, const char *compat, * @param blob FDT blob to update * @param start Begin of DRAM mapping in physical memory * @param size Size of the single memory bank - * @return 0 if ok, or -1 or -FDT_ERR_... on error + * Return: 0 if ok, or -1 or -FDT_ERR_... on error */ int fdt_fixup_memory(void *blob, u64 start, u64 size); @@ -105,7 +105,7 @@ int fdt_fixup_memory(void *blob, u64 start, u64 size); * @param size Array of size to hold the size of each region. * @param banks Number of memory banks to create. If 0, the reg * property will be left untouched. - * @return 0 if ok, or -1 or -FDT_ERR_... on error + * Return: 0 if ok, or -1 or -FDT_ERR_... on error */ #ifdef CONFIG_ARCH_FIXUP_FDT_MEMORY int fdt_fixup_memory_banks(void *blob, u64 start[], u64 size[], int banks); @@ -132,7 +132,7 @@ void fdt_fixup_qe_firmware(void *fdt); * @param blob FDT blob to update * @param path path within dt * @param display name of display timing to match - * @return 0 if ok, or -FDT_ERR_... on error + * Return: 0 if ok, or -FDT_ERR_... on error */ int fdt_fixup_display(void *blob, const char *path, const char *display); @@ -160,11 +160,12 @@ static inline void fdt_fixup_crypto_node(void *blob, int sec_rev) {} * @param entry_point entry point (if specified, otherwise pass -1) * @param type type (if specified, otherwise pass NULL) * @param os os-type (if specified, otherwise pass NULL) - * @return 0 if ok, or -1 or -FDT_ERR_... on error + * @param arch architecture (if specified, otherwise pass NULL) + * Return: 0 if ok, or -1 or -FDT_ERR_... on error */ 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); + const char *type, const char *os, const char *arch); #ifdef CONFIG_PCI #include @@ -181,10 +182,20 @@ int fdt_find_or_add_subnode(void *fdt, int parentoffset, const char *name); * * @param blob FDT blob to update * @param bd Pointer to board data - * @return 0 if ok, or -FDT_ERR_... on error + * Return: 0 if ok, or -FDT_ERR_... on error */ int ft_board_setup(void *blob, struct bd_info *bd); +/** + * board_fdt_chosen_bootargs() - Arbitrarily amend fdt kernel command line + * + * This is used for late modification of kernel command line arguments just + * before they are added into the /chosen node in flat device tree. + * + * @return: pointer to kernel command line arguments in memory + */ +char *board_fdt_chosen_bootargs(void); + /* * The keystone2 SOC requires all 32 bit aliased addresses to be converted * to their 36 physical format. This has to happen after all fdt nodes @@ -192,8 +203,6 @@ int ft_board_setup(void *blob, struct bd_info *bd); * called at the end of the image_setup_libfdt() is to do that convertion. */ void ft_board_setup_ex(void *blob, struct bd_info *bd); -void ft_cpu_setup(void *blob, struct bd_info *bd); -void ft_pci_setup(void *blob, struct bd_info *bd); /** * Add system-specific data to the FDT before booting the OS. @@ -203,7 +212,7 @@ void ft_pci_setup(void *blob, struct bd_info *bd); * * @param blob FDT blob to update * @param bd Pointer to board data - * @return 0 if ok, or -FDT_ERR_... on error + * Return: 0 if ok, or -FDT_ERR_... on error */ int ft_system_setup(void *blob, struct bd_info *bd); @@ -214,11 +223,13 @@ void set_working_fdt_addr(ulong addr); * * @param blob FDT blob to update * @param extrasize additional bytes needed - * @return 0 if ok, or -FDT_ERR_... on error + * Return: 0 if ok, or -FDT_ERR_... on error */ int fdt_shrink_to_minimum(void *blob, uint extrasize); int fdt_increase_size(void *fdt, int add_len); +int fdt_delete_disabled_nodes(void *blob); + int fdt_fixup_nor_flash_size(void *blob); struct node_info; @@ -243,7 +254,7 @@ void fdt_del_node_and_alias(void *blob, const char *alias); * @param blob Pointer to device tree blob * @param node_offset Node DT offset * @param in_addr Pointer to the address to translate - * @return translated address or OF_BAD_ADDR on error + * Return: translated address or OF_BAD_ADDR on error */ u64 fdt_translate_address(const void *blob, int node_offset, const __be32 *in_addr); @@ -255,16 +266,40 @@ u64 fdt_translate_address(const void *blob, int node_offset, * @param blob Pointer to device tree blob * @param node_offset Node DT offset * @param in_addr Pointer to the DMA address to translate - * @return translated DMA address or OF_BAD_ADDR on error + * Return: translated DMA address or OF_BAD_ADDR on error */ u64 fdt_translate_dma_address(const void *blob, int node_offset, const __be32 *in_addr); +/** + * Get DMA ranges for a specifc node, this is useful to perform bus->cpu and + * cpu->bus address translations + * + * @param blob Pointer to device tree blob + * @param node_offset Node DT offset + * @param cpu Pointer to variable storing the range's cpu address + * @param bus Pointer to variable storing the range's bus address + * @param size Pointer to variable storing the range's size + * Return: translated DMA address or OF_BAD_ADDR on error + */ +int fdt_get_dma_range(const void *blob, int node_offset, phys_addr_t *cpu, + dma_addr_t *bus, u64 *size); + int fdt_node_offset_by_compat_reg(void *blob, const char *compat, phys_addr_t compat_off); -int fdt_alloc_phandle(void *blob); +int fdt_node_offset_by_pathf(void *blob, const char *fmt, ...) + __attribute__ ((format (printf, 2, 3))); + +#define fdt_for_each_node_by_compatible(node, fdt, start, compat) \ + for (node = fdt_node_offset_by_compatible(fdt, start, compat); \ + node >= 0; \ + node = fdt_node_offset_by_compatible(fdt, node, compat)) + int fdt_set_phandle(void *fdt, int nodeoffset, uint32_t phandle); unsigned int fdt_create_phandle(void *fdt, int nodeoffset); +unsigned int fdt_create_phandle_by_compatible(void *fdt, const char *compat); +unsigned int fdt_create_phandle_by_pathf(void *fdt, const char *fmt, ...) + __attribute__ ((format (printf, 2, 3))); int fdt_add_edid(void *blob, const char *compat, unsigned char *buf); int fdt_verify_alias_address(void *fdt, int anode, const char *alias, @@ -277,37 +312,60 @@ enum fdt_status { FDT_STATUS_OKAY, FDT_STATUS_DISABLED, FDT_STATUS_FAIL, - FDT_STATUS_FAIL_ERROR_CODE, }; -int fdt_set_node_status(void *fdt, int nodeoffset, - enum fdt_status status, unsigned int error_code); +int fdt_set_node_status(void *fdt, int nodeoffset, enum fdt_status status); static inline int fdt_status_okay(void *fdt, int nodeoffset) { - return fdt_set_node_status(fdt, nodeoffset, FDT_STATUS_OKAY, 0); + return fdt_set_node_status(fdt, nodeoffset, FDT_STATUS_OKAY); } static inline int fdt_status_disabled(void *fdt, int nodeoffset) { - return fdt_set_node_status(fdt, nodeoffset, FDT_STATUS_DISABLED, 0); + return fdt_set_node_status(fdt, nodeoffset, FDT_STATUS_DISABLED); } static inline int fdt_status_fail(void *fdt, int nodeoffset) { - return fdt_set_node_status(fdt, nodeoffset, FDT_STATUS_FAIL, 0); + return fdt_set_node_status(fdt, nodeoffset, FDT_STATUS_FAIL); } int fdt_set_status_by_alias(void *fdt, const char *alias, - enum fdt_status status, unsigned int error_code); + enum fdt_status status); static inline int fdt_status_okay_by_alias(void *fdt, const char *alias) { - return fdt_set_status_by_alias(fdt, alias, FDT_STATUS_OKAY, 0); + return fdt_set_status_by_alias(fdt, alias, FDT_STATUS_OKAY); } static inline int fdt_status_disabled_by_alias(void *fdt, const char *alias) { - return fdt_set_status_by_alias(fdt, alias, FDT_STATUS_DISABLED, 0); + return fdt_set_status_by_alias(fdt, alias, FDT_STATUS_DISABLED); } static inline int fdt_status_fail_by_alias(void *fdt, const char *alias) { - return fdt_set_status_by_alias(fdt, alias, FDT_STATUS_FAIL, 0); + return fdt_set_status_by_alias(fdt, alias, FDT_STATUS_FAIL); +} + +int fdt_set_status_by_compatible(void *fdt, const char *compat, + enum fdt_status status); +static inline int fdt_status_okay_by_compatible(void *fdt, const char *compat) +{ + return fdt_set_status_by_compatible(fdt, compat, FDT_STATUS_OKAY); } +static inline int fdt_status_disabled_by_compatible(void *fdt, + const char *compat) +{ + return fdt_set_status_by_compatible(fdt, compat, FDT_STATUS_DISABLED); +} +static inline int fdt_status_fail_by_compatible(void *fdt, const char *compat) +{ + return fdt_set_status_by_compatible(fdt, compat, FDT_STATUS_FAIL); +} + +int fdt_set_status_by_pathf(void *fdt, enum fdt_status status, const char *fmt, + ...) __attribute__ ((format (printf, 3, 4))); +#define fdt_status_okay_by_pathf(fdt, fmt, ...) \ + fdt_set_status_by_pathf((fdt), FDT_STATUS_OKAY, (fmt), ##__VA_ARGS__) +#define fdt_status_disabled_by_pathf(fdt, fmt, ...) \ + fdt_set_status_by_pathf((fdt), FDT_STATUS_DISABLED, (fmt), ##__VA_ARGS__) +#define fdt_status_fail_by_pathf(fdt, fmt, ...) \ + fdt_set_status_by_pathf((fdt), FDT_STATUS_FAIL, (fmt), ##__VA_ARGS__) /* Helper to read a big number; size is in cells (not bytes) */ static inline u64 fdt_read_number(const fdt32_t *cell, int size) @@ -328,6 +386,8 @@ int fdt_setup_simplefb_node(void *fdt, int node, u64 base_address, u32 width, int fdt_overlay_apply_verbose(void *fdt, void *fdto); +int fdt_valid(struct fdt_header **blobp); + /** * fdt_get_cells_len() - Get the length of a type of cell in top-level nodes * @@ -349,7 +409,7 @@ int fdtdec_get_int(const void *blob, int node, const char *prop_name, * * @param blob FDT blob * @param node parent node - * @return number of child node; 0 if there is not child node + * Return: number of child node; 0 if there is not child node */ int fdtdec_get_child_count(const void *blob, int node); #endif