1 /* 2 * (C) Copyright 2007 3 * Gerald Van Baren, Custom IDEAS, vanbaren@cideas.com 4 * 5 * SPDX-License-Identifier: GPL-2.0+ 6 */ 7 8 #ifndef __FDT_SUPPORT_H 9 #define __FDT_SUPPORT_H 10 11 #ifdef CONFIG_OF_LIBFDT 12 13 #include <libfdt.h> 14 15 u32 fdt_getprop_u32_default_node(const void *fdt, int off, int cell, 16 const char *prop, const u32 dflt); 17 u32 fdt_getprop_u32_default(const void *fdt, const char *path, 18 const char *prop, const u32 dflt); 19 int fdt_chosen(void *fdt); 20 int fdt_initrd(void *fdt, ulong initrd_start, ulong initrd_end); 21 void do_fixup_by_path(void *fdt, const char *path, const char *prop, 22 const void *val, int len, int create); 23 void do_fixup_by_path_u32(void *fdt, const char *path, const char *prop, 24 u32 val, int create); 25 26 static inline void do_fixup_by_path_string(void *fdt, const char *path, 27 const char *prop, const char *status) 28 { 29 do_fixup_by_path(fdt, path, prop, status, strlen(status) + 1, 1); 30 } 31 32 void do_fixup_by_prop(void *fdt, 33 const char *pname, const void *pval, int plen, 34 const char *prop, const void *val, int len, 35 int create); 36 void do_fixup_by_prop_u32(void *fdt, 37 const char *pname, const void *pval, int plen, 38 const char *prop, u32 val, int create); 39 void do_fixup_by_compat(void *fdt, const char *compat, 40 const char *prop, const void *val, int len, int create); 41 void do_fixup_by_compat_u32(void *fdt, const char *compat, 42 const char *prop, u32 val, int create); 43 int fdt_fixup_memory(void *blob, u64 start, u64 size); 44 int fdt_fixup_memory_banks(void *blob, u64 start[], u64 size[], int banks); 45 void fdt_fixup_ethernet(void *fdt); 46 int fdt_find_and_setprop(void *fdt, const char *node, const char *prop, 47 const void *val, int len, int create); 48 void fdt_fixup_qe_firmware(void *fdt); 49 50 #if defined(CONFIG_HAS_FSL_DR_USB) || defined(CONFIG_HAS_FSL_MPH_USB) 51 void fdt_fixup_dr_usb(void *blob, bd_t *bd); 52 #else 53 static inline void fdt_fixup_dr_usb(void *blob, bd_t *bd) {} 54 #endif /* defined(CONFIG_HAS_FSL_DR_USB) || defined(CONFIG_HAS_FSL_MPH_USB) */ 55 56 #if defined(CONFIG_SYS_FSL_SEC_COMPAT) 57 void fdt_fixup_crypto_node(void *blob, int sec_rev); 58 #else 59 static inline void fdt_fixup_crypto_node(void *blob, int sec_rev) {} 60 #endif 61 62 #ifdef CONFIG_PCI 63 #include <pci.h> 64 int fdt_pci_dma_ranges(void *blob, int phb_off, struct pci_controller *hose); 65 #endif 66 67 void ft_board_setup(void *blob, bd_t *bd); 68 /* 69 * The keystone2 SOC requires all 32 bit aliased addresses to be converted 70 * to their 36 physical format. This has to happen after all fdt nodes 71 * are added or modified by the image_setup_libfdt(). The ft_board_setup_ex() 72 * called at the end of the image_setup_libfdt() is to do that convertion. 73 */ 74 void ft_board_setup_ex(void *blob, bd_t *bd); 75 void ft_cpu_setup(void *blob, bd_t *bd); 76 void ft_pci_setup(void *blob, bd_t *bd); 77 78 void set_working_fdt_addr(void *addr); 79 int fdt_shrink_to_minimum(void *blob); 80 int fdt_increase_size(void *fdt, int add_len); 81 82 int fdt_fixup_nor_flash_size(void *blob); 83 84 void fdt_fixup_mtdparts(void *fdt, void *node_info, int node_info_size); 85 void fdt_del_node_and_alias(void *blob, const char *alias); 86 u64 fdt_translate_address(void *blob, int node_offset, const __be32 *in_addr); 87 int fdt_node_offset_by_compat_reg(void *blob, const char *compat, 88 phys_addr_t compat_off); 89 int fdt_alloc_phandle(void *blob); 90 int fdt_set_phandle(void *fdt, int nodeoffset, uint32_t phandle); 91 unsigned int fdt_create_phandle(void *fdt, int nodeoffset); 92 int fdt_add_edid(void *blob, const char *compat, unsigned char *buf); 93 94 int fdt_verify_alias_address(void *fdt, int anode, const char *alias, 95 u64 addr); 96 u64 fdt_get_base_address(void *fdt, int node); 97 int fdt_read_range(void *fdt, int node, int n, uint64_t *child_addr, 98 uint64_t *addr, uint64_t *len); 99 100 enum fdt_status { 101 FDT_STATUS_OKAY, 102 FDT_STATUS_DISABLED, 103 FDT_STATUS_FAIL, 104 FDT_STATUS_FAIL_ERROR_CODE, 105 }; 106 int fdt_set_node_status(void *fdt, int nodeoffset, 107 enum fdt_status status, unsigned int error_code); 108 static inline int fdt_status_okay(void *fdt, int nodeoffset) 109 { 110 return fdt_set_node_status(fdt, nodeoffset, FDT_STATUS_OKAY, 0); 111 } 112 static inline int fdt_status_disabled(void *fdt, int nodeoffset) 113 { 114 return fdt_set_node_status(fdt, nodeoffset, FDT_STATUS_DISABLED, 0); 115 } 116 static inline int fdt_status_fail(void *fdt, int nodeoffset) 117 { 118 return fdt_set_node_status(fdt, nodeoffset, FDT_STATUS_FAIL, 0); 119 } 120 121 int fdt_set_status_by_alias(void *fdt, const char *alias, 122 enum fdt_status status, unsigned int error_code); 123 static inline int fdt_status_okay_by_alias(void *fdt, const char *alias) 124 { 125 return fdt_set_status_by_alias(fdt, alias, FDT_STATUS_OKAY, 0); 126 } 127 static inline int fdt_status_disabled_by_alias(void *fdt, const char *alias) 128 { 129 return fdt_set_status_by_alias(fdt, alias, FDT_STATUS_DISABLED, 0); 130 } 131 static inline int fdt_status_fail_by_alias(void *fdt, const char *alias) 132 { 133 return fdt_set_status_by_alias(fdt, alias, FDT_STATUS_FAIL, 0); 134 } 135 136 /* Helper to read a big number; size is in cells (not bytes) */ 137 static inline u64 of_read_number(const fdt32_t *cell, int size) 138 { 139 u64 r = 0; 140 while (size--) 141 r = (r << 32) | fdt32_to_cpu(*(cell++)); 142 return r; 143 } 144 145 void of_bus_default_count_cells(void *blob, int parentoffset, 146 int *addrc, int *sizec); 147 148 #endif /* ifdef CONFIG_OF_LIBFDT */ 149 150 #ifdef USE_HOSTCC 151 int fdtdec_get_int(const void *blob, int node, const char *prop_name, 152 int default_val); 153 #endif 154 #endif /* ifndef __FDT_SUPPORT_H */ 155