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https://github.com/AsahiLinux/u-boot
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c48e686889
This patch adds a helper function that can be used to interpret most "ranges" properties in the device tree. It reads the n'th range out of a "ranges" array and returns the node's virtual address of the range, the physical address that range starts at and the size of the range. Signed-off-by: Alexander Graf <agraf@suse.de> Acked-by: Scott Wood <scottwood@freescale.com> Reviewed-by: York Sun <yorksun@freescale.com>
127 lines
4.4 KiB
C
127 lines
4.4 KiB
C
/*
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* (C) Copyright 2007
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* Gerald Van Baren, Custom IDEAS, vanbaren@cideas.com
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#ifndef __FDT_SUPPORT_H
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#define __FDT_SUPPORT_H
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#ifdef CONFIG_OF_LIBFDT
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#include <libfdt.h>
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u32 fdt_getprop_u32_default_node(const void *fdt, int off, int cell,
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const char *prop, const u32 dflt);
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u32 fdt_getprop_u32_default(const void *fdt, const char *path,
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const char *prop, const u32 dflt);
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int fdt_chosen(void *fdt, int force);
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int fdt_initrd(void *fdt, ulong initrd_start, ulong initrd_end, int force);
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void do_fixup_by_path(void *fdt, const char *path, const char *prop,
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const void *val, int len, int create);
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void do_fixup_by_path_u32(void *fdt, const char *path, const char *prop,
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u32 val, int create);
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static inline void do_fixup_by_path_string(void *fdt, const char *path,
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const char *prop, const char *status)
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{
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do_fixup_by_path(fdt, path, prop, status, strlen(status) + 1, 1);
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}
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void do_fixup_by_prop(void *fdt,
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const char *pname, const void *pval, int plen,
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const char *prop, const void *val, int len,
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int create);
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void do_fixup_by_prop_u32(void *fdt,
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const char *pname, const void *pval, int plen,
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const char *prop, u32 val, int create);
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void do_fixup_by_compat(void *fdt, const char *compat,
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const char *prop, const void *val, int len, int create);
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void do_fixup_by_compat_u32(void *fdt, const char *compat,
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const char *prop, u32 val, int create);
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int fdt_fixup_memory(void *blob, u64 start, u64 size);
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int fdt_fixup_memory_banks(void *blob, u64 start[], u64 size[], int banks);
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void fdt_fixup_ethernet(void *fdt);
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int fdt_find_and_setprop(void *fdt, const char *node, const char *prop,
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const void *val, int len, int create);
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void fdt_fixup_qe_firmware(void *fdt);
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#if defined(CONFIG_HAS_FSL_DR_USB) || defined(CONFIG_HAS_FSL_MPH_USB)
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void fdt_fixup_dr_usb(void *blob, bd_t *bd);
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#else
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static inline void fdt_fixup_dr_usb(void *blob, bd_t *bd) {}
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#endif /* defined(CONFIG_HAS_FSL_DR_USB) || defined(CONFIG_HAS_FSL_MPH_USB) */
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#if defined(CONFIG_SYS_FSL_SEC_COMPAT)
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void fdt_fixup_crypto_node(void *blob, int sec_rev);
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#else
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static inline void fdt_fixup_crypto_node(void *blob, int sec_rev) {}
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#endif
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#ifdef CONFIG_PCI
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#include <pci.h>
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int fdt_pci_dma_ranges(void *blob, int phb_off, struct pci_controller *hose);
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#endif
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void ft_board_setup(void *blob, bd_t *bd);
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void ft_cpu_setup(void *blob, bd_t *bd);
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void ft_pci_setup(void *blob, bd_t *bd);
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void set_working_fdt_addr(void *addr);
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int fdt_resize(void *blob);
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int fdt_increase_size(void *fdt, int add_len);
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int fdt_fixup_nor_flash_size(void *blob);
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void fdt_fixup_mtdparts(void *fdt, void *node_info, int node_info_size);
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void fdt_del_node_and_alias(void *blob, const char *alias);
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u64 fdt_translate_address(void *blob, int node_offset, const __be32 *in_addr);
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int fdt_node_offset_by_compat_reg(void *blob, const char *compat,
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phys_addr_t compat_off);
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int fdt_alloc_phandle(void *blob);
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int fdt_set_phandle(void *fdt, int nodeoffset, uint32_t phandle);
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unsigned int fdt_create_phandle(void *fdt, int nodeoffset);
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int fdt_add_edid(void *blob, const char *compat, unsigned char *buf);
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int fdt_verify_alias_address(void *fdt, int anode, const char *alias,
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u64 addr);
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u64 fdt_get_base_address(void *fdt, int node);
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int fdt_read_range(void *fdt, int node, int n, uint64_t *child_addr,
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uint64_t *addr, uint64_t *len);
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enum fdt_status {
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FDT_STATUS_OKAY,
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FDT_STATUS_DISABLED,
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FDT_STATUS_FAIL,
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FDT_STATUS_FAIL_ERROR_CODE,
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};
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int fdt_set_node_status(void *fdt, int nodeoffset,
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enum fdt_status status, unsigned int error_code);
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static inline int fdt_status_okay(void *fdt, int nodeoffset)
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{
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return fdt_set_node_status(fdt, nodeoffset, FDT_STATUS_OKAY, 0);
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}
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static inline int fdt_status_disabled(void *fdt, int nodeoffset)
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{
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return fdt_set_node_status(fdt, nodeoffset, FDT_STATUS_DISABLED, 0);
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}
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int fdt_set_status_by_alias(void *fdt, const char* alias,
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enum fdt_status status, unsigned int error_code);
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static inline int fdt_status_okay_by_alias(void *fdt, const char* alias)
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{
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return fdt_set_status_by_alias(fdt, alias, FDT_STATUS_OKAY, 0);
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}
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static inline int fdt_status_disabled_by_alias(void *fdt, const char* alias)
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{
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return fdt_set_status_by_alias(fdt, alias, FDT_STATUS_DISABLED, 0);
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}
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#endif /* ifdef CONFIG_OF_LIBFDT */
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#ifdef USE_HOSTCC
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int fdtdec_get_int(const void *blob, int node, const char *prop_name,
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int default_val);
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#endif
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#endif /* ifndef __FDT_SUPPORT_H */
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