armv8/ls2085ardb: add hwconfig setting for eSDHC

[oweals/u-boot.git] / include / fdt_support.h

diff --git a/include/fdt_support.h b/include/fdt_support.h
index fd44d7e2f6495227bbcc34e9ece430921082e4da..0edc4fa5b1445e594368ebd6ac7c214687c9ef3d 100644 (file)
--- a/include/fdt_support.h
+++ b/include/fdt_support.h
@@ -16,8 +16,35 @@ 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);
+
+/**
+ * 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,
@@ -47,6 +74,19 @@ 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);
 
+/**
+ * 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 +104,20 @@ 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
@@ -75,8 +128,20 @@ 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);
@@ -133,6 +198,23 @@ 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 u64 of_read_number(const fdt32_t *cell, int size)
+{
+       u64 r = 0;
+       while (size--)
+               r = (r << 32) | fdt32_to_cpu(*(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, u64 base_address, u32 width,
+                           u32 height, u32 stride, const char *format);
+
 #endif /* ifdef CONFIG_OF_LIBFDT */
 
 #ifdef USE_HOSTCC