X-Git-Url: https://git.kernelconcepts.de/?p=karo-tx-uboot.git;a=blobdiff_plain;f=include%2Ffdt_support.h;h=a02fe047f4b64628ee44c6fdf719aa8e8d433740;hp=21d7b44453286cbf78904f4620cb4fdc172fd2e6;hb=b8162f1b75b4c52f3ca431520742af8bf0721cd9;hpb=019b57cc1d280c3768e2e8a7ff22e07a64c2f670 diff --git a/include/fdt_support.h b/include/fdt_support.h index 21d7b44453..a02fe047f4 100644 --- a/include/fdt_support.h +++ b/include/fdt_support.h @@ -12,16 +12,43 @@ #include -u32 fdt_getprop_u32_default_node(const void *fdt, int off, int cell, - const char *prop, const u32 dflt); -u32 fdt_getprop_u32_default(const void *fdt, const char *path, - const char *prop, const u32 dflt); +uint32_t fdt_getprop_u32_default_node(const void *fdt, int off, int cell, + const char *prop, const uint32_t dflt); +uint32_t fdt_getprop_u32_default(const void *fdt, const char *path, + const char *prop, const uint32_t dflt); + +/** + * Add data to the root of the FDT before booting the OS. + * + * See doc/device-tree-bindings/root.txt + * + * @param fdt FDT address in memory + * @return 0 if ok, or -FDT_ERR_... on error + */ +int fdt_root(void *fdt); + +/** + * Add chosen data the FDT before booting the OS. + * + * 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 + */ 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 + */ int fdt_initrd(void *fdt, ulong initrd_start, ulong initrd_end); + void do_fixup_by_path(void *fdt, const char *path, const char *prop, const void *val, int len, int create); void do_fixup_by_path_u32(void *fdt, const char *path, const char *prop, - u32 val, int create); + uint32_t val, int create); static inline void do_fixup_by_path_string(void *fdt, const char *path, const char *prop, const char *status) @@ -35,18 +62,58 @@ void do_fixup_by_prop(void *fdt, int create); void do_fixup_by_prop_u32(void *fdt, const char *pname, const void *pval, int plen, - const char *prop, u32 val, int create); + const char *prop, uint32_t val, int create); void do_fixup_by_compat(void *fdt, const char *compat, const char *prop, const void *val, int len, int create); void do_fixup_by_compat_u32(void *fdt, const char *compat, - const char *prop, u32 val, int create); -int fdt_fixup_memory(void *blob, u64 start, u64 size); -int fdt_fixup_memory_banks(void *blob, u64 start[], u64 size[], int banks); + const char *prop, uint32_t val, int create); +/** + * Setup the memory node in the DT. Creates one if none was existing before. + * Calls fdt_fixup_memory_banks() to populate a single reg pair covering the + * whole memory. + * + * @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 + */ +int fdt_fixup_memory(void *blob, uint64_t start, uint64_t size); + +/** + * Fill the DT memory node with multiple memory banks. + * Creates the node if none was existing before. + * If banks is 0, it will not touch the existing reg property. This allows + * boards to not mess with the existing DT setup, which may have been + * filled in properly before. + * + * @param blob FDT blob to update + * @param start Array of size to hold the start addresses. + * @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 + */ +int fdt_fixup_memory_banks(void *blob, uint64_t start[], uint64_t size[], int banks); + void fdt_fixup_ethernet(void *fdt); int fdt_find_and_setprop(void *fdt, const char *node, const char *prop, const void *val, int len, int create); void fdt_fixup_qe_firmware(void *fdt); +#if defined(__UBOOT__) +/** + * Update native-mode property of display-timings node to the phandle + * of the timings matching a display by name (case insensitive). + * + * see kernel Documentation/devicetree/bindings/video/display-timing.txt + * + * @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 + */ +int fdt_fixup_display(void *blob, const char *path, const char *display); + #if defined(CONFIG_HAS_FSL_DR_USB) || defined(CONFIG_HAS_FSL_MPH_USB) void fdt_fixup_dr_usb(void *blob, bd_t *bd); #else @@ -64,7 +131,20 @@ static inline void fdt_fixup_crypto_node(void *blob, int sec_rev) {} int fdt_pci_dma_ranges(void *blob, int phb_off, struct pci_controller *hose); #endif -void ft_board_setup(void *blob, bd_t *bd); +int fdt_find_or_add_subnode(void *fdt, int parentoffset, const char *name); + +/** + * Add board-specific data to the FDT before booting the OS. + * + * Use CONFIG_SYS_FDT_PAD to ensure there is sufficient space. + * This function is called if CONFIG_OF_BOARD_SETUP is defined + * + * @param blob FDT blob to update + * @param bd_t Pointer to board data + * @return 0 if ok, or -FDT_ERR_... on error + */ +int ft_board_setup(void *blob, bd_t *bd); + /* * 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 @@ -75,15 +155,27 @@ void ft_board_setup_ex(void *blob, bd_t *bd); void ft_cpu_setup(void *blob, bd_t *bd); void ft_pci_setup(void *blob, bd_t *bd); -void set_working_fdt_addr(void *addr); -int fdt_resize(void *blob); +/** + * Add system-specific data to the FDT before booting the OS. + * + * Use CONFIG_SYS_FDT_PAD to ensure there is sufficient space. + * This function is called if CONFIG_OF_SYSTEM_SETUP is defined + * + * @param blob FDT blob to update + * @param bd_t Pointer to board data + * @return 0 if ok, or -FDT_ERR_... on error + */ +int ft_system_setup(void *blob, bd_t *bd); + +void set_working_fdt_addr(ulong addr); +int fdt_shrink_to_minimum(void *blob); int fdt_increase_size(void *fdt, int add_len); int fdt_fixup_nor_flash_size(void *blob); void fdt_fixup_mtdparts(void *fdt, void *node_info, int node_info_size); void fdt_del_node_and_alias(void *blob, const char *alias); -u64 fdt_translate_address(void *blob, int node_offset, const __be32 *in_addr); +uint64_t fdt_translate_address(void *blob, int node_offset, const __be32 *in_addr); int fdt_node_offset_by_compat_reg(void *blob, const char *compat, phys_addr_t compat_off); int fdt_alloc_phandle(void *blob); @@ -92,10 +184,11 @@ unsigned int fdt_create_phandle(void *fdt, int nodeoffset); int fdt_add_edid(void *blob, const char *compat, unsigned char *buf); int fdt_verify_alias_address(void *fdt, int anode, const char *alias, - u64 addr); -u64 fdt_get_base_address(void *fdt, int node); + uint64_t addr); +uint64_t fdt_get_base_address(void *fdt, int node); int fdt_read_range(void *fdt, int node, int n, uint64_t *child_addr, uint64_t *addr, uint64_t *len); +#endif /* __UBOOT__ */ enum fdt_status { FDT_STATUS_OKAY, @@ -113,17 +206,45 @@ static inline int fdt_status_disabled(void *fdt, int nodeoffset) { return fdt_set_node_status(fdt, nodeoffset, FDT_STATUS_DISABLED, 0); } +static inline int fdt_status_fail(void *fdt, int nodeoffset) +{ + return fdt_set_node_status(fdt, nodeoffset, FDT_STATUS_FAIL, 0); +} -int fdt_set_status_by_alias(void *fdt, const char* alias, +int fdt_set_status_by_alias(void *fdt, const char *alias, enum fdt_status status, unsigned int error_code); -static inline int fdt_status_okay_by_alias(void *fdt, const char* alias) +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); } -static inline int fdt_status_disabled_by_alias(void *fdt, const char* alias) +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); } +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); +} + +/* Helper to read a big number; size is in cells (not bytes) */ +static inline uint64_t of_read_number(const fdt32_t *cell, int size) +{ + uint64_t r = 0; + + while (size--) { + r = (r << 32) | fdt32_to_cpu(*cell); + cell++; + } + return r; +} + +void of_bus_default_count_cells(void *blob, int parentoffset, + int *addrc, int *sizec); +int ft_verify_fdt(void *fdt); +int arch_fixup_memory_node(void *blob); + +int fdt_setup_simplefb_node(void *fdt, int node, uint64_t base_address, uint32_t width, + uint32_t height, uint32_t stride, const char *format); #endif /* ifdef CONFIG_OF_LIBFDT */