2018-05-06 21:58:06 +00:00
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/* SPDX-License-Identifier: GPL-2.0+ */
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2007-04-06 18:19:43 +00:00
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/*
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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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#ifndef __FDT_SUPPORT_H
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#define __FDT_SUPPORT_H
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2021-09-26 01:43:18 +00:00
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#if defined(CONFIG_OF_LIBFDT) && !defined(USE_HOSTCC)
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2007-04-06 18:19:43 +00:00
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2019-12-18 02:21:54 +00:00
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#include <asm/u-boot.h>
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2018-03-04 16:20:11 +00:00
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#include <linux/libfdt.h>
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2007-04-06 18:19:43 +00:00
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2019-12-28 17:44:54 +00:00
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/**
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* arch_fixup_fdt() - Write arch-specific information to fdt
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*
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* Defined in arch/$(ARCH)/lib/bootm-fdt.c
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*
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* @blob: FDT blob to write to
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* @return 0 if ok, or -ve FDT_ERR_... on failure
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*/
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int arch_fixup_fdt(void *blob);
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2020-06-26 06:13:33 +00:00
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void ft_cpu_setup(void *blob, struct bd_info *bd);
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2019-12-28 17:44:54 +00:00
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2020-06-26 06:13:33 +00:00
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void ft_pci_setup(void *blob, struct bd_info *bd);
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2019-12-28 17:44:54 +00:00
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2014-04-11 15:09:40 +00:00
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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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2011-11-08 09:09:44 +00:00
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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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2015-05-24 10:01:53 +00:00
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/**
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* Add data to the root of the FDT before booting the OS.
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*
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* See doc/device-tree-bindings/root.txt
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*
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* @param fdt FDT address in memory
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* @return 0 if ok, or -FDT_ERR_... on error
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*/
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2015-05-21 09:27:03 +00:00
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int fdt_root(void *fdt);
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2015-05-24 10:01:53 +00:00
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/**
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* Add chosen data the FDT before booting the OS.
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*
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* In particular, this adds the kernel command line (bootargs) to the FDT.
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*
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* @param fdt FDT address in memory
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* @return 0 if ok, or -FDT_ERR_... on error
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*/
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2014-04-18 08:41:00 +00:00
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int fdt_chosen(void *fdt);
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2015-05-24 10:01:53 +00:00
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/**
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* Add initrd information to the FDT before booting the OS.
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*
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* @param fdt FDT address in memory
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* @return 0 if ok, or -FDT_ERR_... on error
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*/
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2014-04-18 08:40:59 +00:00
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int fdt_initrd(void *fdt, ulong initrd_start, ulong initrd_end);
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2015-05-24 10:01:53 +00:00
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2007-11-04 00:46:28 +00:00
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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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2011-08-31 02:36:32 +00:00
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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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2007-11-21 19:30:15 +00:00
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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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2015-06-20 23:29:54 +00:00
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/**
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* Setup the memory node in the DT. Creates one if none was existing before.
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* Calls fdt_fixup_memory_banks() to populate a single reg pair covering the
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* whole memory.
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*
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* @param blob FDT blob to update
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* @param start Begin of DRAM mapping in physical memory
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* @param size Size of the single memory bank
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* @return 0 if ok, or -1 or -FDT_ERR_... on error
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*/
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2007-11-26 20:57:45 +00:00
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int fdt_fixup_memory(void *blob, u64 start, u64 size);
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2015-06-20 23:29:54 +00:00
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/**
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* Fill the DT memory node with multiple memory banks.
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* Creates the node if none was existing before.
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* If banks is 0, it will not touch the existing reg property. This allows
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* boards to not mess with the existing DT setup, which may have been
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* filled in properly before.
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*
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* @param blob FDT blob to update
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* @param start Array of size <banks> to hold the start addresses.
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* @param size Array of size <banks> to hold the size of each region.
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* @param banks Number of memory banks to create. If 0, the reg
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* property will be left untouched.
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* @return 0 if ok, or -1 or -FDT_ERR_... on error
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*/
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2016-11-26 02:02:10 +00:00
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#ifdef CONFIG_ARCH_FIXUP_FDT_MEMORY
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2010-10-13 19:57:33 +00:00
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int fdt_fixup_memory_banks(void *blob, u64 start[], u64 size[], int banks);
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2019-12-03 12:04:46 +00:00
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int fdt_set_usable_memory(void *blob, u64 start[], u64 size[], int banks);
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2016-11-26 02:02:10 +00:00
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#else
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static inline int fdt_fixup_memory_banks(void *blob, u64 start[], u64 size[],
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int banks)
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{
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return 0;
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}
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#endif
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2015-06-20 23:29:54 +00:00
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2008-08-19 20:41:18 +00:00
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void fdt_fixup_ethernet(void *fdt);
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2007-12-28 10:56:30 +00:00
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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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2008-01-07 19:31:19 +00:00
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void fdt_fixup_qe_firmware(void *fdt);
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2007-04-06 18:19:43 +00:00
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2015-04-08 18:45:39 +00:00
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/**
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* Update native-mode property of display-timings node to the phandle
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* of the timings matching a display by name (case insensitive).
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*
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* see kernel Documentation/devicetree/bindings/video/display-timing.txt
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*
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* @param blob FDT blob to update
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* @param path path within dt
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* @param display name of display timing to match
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* @return 0 if ok, or -FDT_ERR_... on error
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*/
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int fdt_fixup_display(void *blob, const char *path, const char *display);
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2016-04-05 09:11:21 +00:00
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#if defined(CONFIG_USB_EHCI_FSL) || defined(CONFIG_USB_XHCI_FSL)
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2020-06-26 06:13:33 +00:00
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void fsl_fdt_fixup_dr_usb(void *blob, struct bd_info *bd);
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2008-03-14 20:20:18 +00:00
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#else
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2020-06-26 06:13:33 +00:00
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static inline void fsl_fdt_fixup_dr_usb(void *blob, struct bd_info *bd) {}
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2016-04-05 09:11:21 +00:00
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#endif /* defined(CONFIG_USB_EHCI_FSL) || defined(CONFIG_USB_XHCI_FSL) */
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2008-03-14 20:20:18 +00:00
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2010-06-01 17:24:27 +00:00
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#if defined(CONFIG_SYS_FSL_SEC_COMPAT)
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2008-06-16 20:55:53 +00:00
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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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2017-09-13 19:29:33 +00:00
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/**
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* Record information about a processed loadable in /fit-images (creating
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* /fit-images if necessary).
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*
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* @param blob FDT blob to update
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* @param index index of this loadable
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* @param name name of the loadable
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* @param load_addr address the loadable was loaded to
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* @param size number of bytes loaded
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* @param entry_point entry point (if specified, otherwise pass -1)
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* @param type type (if specified, otherwise pass NULL)
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* @param os os-type (if specified, otherwise pass NULL)
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2021-05-27 09:40:09 +00:00
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* @param arch architecture (if specified, otherwise pass NULL)
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2017-09-13 19:29:33 +00:00
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* @return 0 if ok, or -1 or -FDT_ERR_... on error
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*/
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int fdt_record_loadable(void *blob, u32 index, const char *name,
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uintptr_t load_addr, u32 size, uintptr_t entry_point,
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2021-05-27 09:40:09 +00:00
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const char *type, const char *os, const char *arch);
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2017-09-13 19:29:33 +00:00
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2008-10-23 04:33:56 +00:00
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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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2014-10-24 00:58:49 +00:00
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int fdt_find_or_add_subnode(void *fdt, int parentoffset, const char *name);
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2014-10-24 00:58:47 +00:00
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/**
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* Add board-specific data to the FDT before booting the OS.
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*
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* Use CONFIG_SYS_FDT_PAD to ensure there is sufficient space.
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2014-10-24 00:58:53 +00:00
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* This function is called if CONFIG_OF_BOARD_SETUP is defined
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2014-10-24 00:58:47 +00:00
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*
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* @param blob FDT blob to update
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2020-06-26 06:13:34 +00:00
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* @param bd Pointer to board data
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2014-10-24 00:58:47 +00:00
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* @return 0 if ok, or -FDT_ERR_... on error
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*/
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2020-06-26 06:13:33 +00:00
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int ft_board_setup(void *blob, struct bd_info *bd);
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2014-10-24 00:58:47 +00:00
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2021-02-22 19:18:51 +00:00
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/**
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* board_fdt_chosen_bootargs() - Arbitrarily amend fdt kernel command line
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*
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* This is used for late modification of kernel command line arguments just
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* before they are added into the /chosen node in flat device tree.
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*
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* @return: pointer to kernel command line arguments in memory
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*/
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char *board_fdt_chosen_bootargs(void);
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2014-04-04 17:16:47 +00:00
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/*
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* The keystone2 SOC requires all 32 bit aliased addresses to be converted
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* to their 36 physical format. This has to happen after all fdt nodes
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* are added or modified by the image_setup_libfdt(). The ft_board_setup_ex()
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* called at the end of the image_setup_libfdt() is to do that convertion.
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*/
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2020-06-26 06:13:33 +00:00
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void ft_board_setup_ex(void *blob, struct bd_info *bd);
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2007-07-11 00:40:39 +00:00
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2014-10-24 00:58:54 +00:00
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/**
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* Add system-specific data to the FDT before booting the OS.
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*
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* Use CONFIG_SYS_FDT_PAD to ensure there is sufficient space.
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* This function is called if CONFIG_OF_SYSTEM_SETUP is defined
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*
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* @param blob FDT blob to update
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2020-06-26 06:13:34 +00:00
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* @param bd Pointer to board data
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2014-10-24 00:58:54 +00:00
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* @return 0 if ok, or -FDT_ERR_... on error
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*/
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2020-06-26 06:13:33 +00:00
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int ft_system_setup(void *blob, struct bd_info *bd);
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2014-10-24 00:58:54 +00:00
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2015-02-05 03:56:53 +00:00
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void set_working_fdt_addr(ulong addr);
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2016-09-20 16:10:43 +00:00
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/**
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* shrink down the given blob to minimum size + some extrasize if required
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*
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* @param blob FDT blob to update
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* @param extrasize additional bytes needed
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* @return 0 if ok, or -FDT_ERR_... on error
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*/
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int fdt_shrink_to_minimum(void *blob, uint extrasize);
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2011-05-03 18:35:10 +00:00
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int fdt_increase_size(void *fdt, int add_len);
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2008-08-15 13:24:39 +00:00
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2010-09-16 12:01:53 +00:00
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int fdt_fixup_nor_flash_size(void *blob);
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2009-10-21 09:59:52 +00:00
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2018-07-19 07:28:22 +00:00
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struct node_info;
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2016-07-12 21:37:35 +00:00
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#if defined(CONFIG_FDT_FIXUP_PARTITIONS)
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2018-07-19 07:28:22 +00:00
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void fdt_fixup_mtdparts(void *fdt, const struct node_info *node_info,
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int node_info_size);
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2016-07-12 21:37:35 +00:00
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#else
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2018-07-19 07:28:22 +00:00
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static inline void fdt_fixup_mtdparts(void *fdt,
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const struct node_info *node_info,
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int node_info_size)
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{
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}
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2016-07-12 21:37:35 +00:00
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#endif
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2010-03-30 15:19:26 +00:00
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void fdt_del_node_and_alias(void *blob, const char *alias);
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2019-05-31 13:11:30 +00:00
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/**
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* Translate an address from the DT into a CPU physical address
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*
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* The translation relies on the "ranges" property.
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*
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* @param blob Pointer to device tree blob
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* @param node_offset Node DT offset
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* @param in_addr Pointer to the address to translate
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* @return translated address or OF_BAD_ADDR on error
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*/
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2016-08-05 15:47:50 +00:00
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u64 fdt_translate_address(const void *blob, int node_offset,
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const __be32 *in_addr);
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2019-05-31 13:11:30 +00:00
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/**
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* Translate a DMA address from the DT into a CPU physical address
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*
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* The translation relies on the "dma-ranges" property.
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*
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* @param blob Pointer to device tree blob
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* @param node_offset Node DT offset
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* @param in_addr Pointer to the DMA address to translate
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* @return translated DMA address or OF_BAD_ADDR on error
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*/
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u64 fdt_translate_dma_address(const void *blob, int node_offset,
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const __be32 *in_addr);
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2021-01-12 12:55:22 +00:00
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/**
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* Get DMA ranges for a specifc node, this is useful to perform bus->cpu and
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* cpu->bus address translations
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*
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* @param blob Pointer to device tree blob
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* @param node_offset Node DT offset
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* @param cpu Pointer to variable storing the range's cpu address
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* @param bus Pointer to variable storing the range's bus address
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* @param size Pointer to variable storing the range's size
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* @return translated DMA address or OF_BAD_ADDR on error
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*/
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int fdt_get_dma_range(const void *blob, int node_offset, phys_addr_t *cpu,
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dma_addr_t *bus, u64 *size);
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2010-07-04 17:48:21 +00:00
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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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2010-07-09 21:18:58 +00:00
|
|
|
int fdt_alloc_phandle(void *blob);
|
2011-08-01 05:23:23 +00:00
|
|
|
int fdt_set_phandle(void *fdt, int nodeoffset, uint32_t phandle);
|
2011-09-20 23:24:34 +00:00
|
|
|
unsigned int fdt_create_phandle(void *fdt, int nodeoffset);
|
2010-08-18 09:25:20 +00:00
|
|
|
int fdt_add_edid(void *blob, const char *compat, unsigned char *buf);
|
2010-03-16 16:10:05 +00:00
|
|
|
|
2011-05-03 18:24:07 +00:00
|
|
|
int fdt_verify_alias_address(void *fdt, int anode, const char *alias,
|
|
|
|
u64 addr);
|
2017-05-19 02:09:00 +00:00
|
|
|
u64 fdt_get_base_address(const void *fdt, int node);
|
2014-04-11 15:09:41 +00:00
|
|
|
int fdt_read_range(void *fdt, int node, int n, uint64_t *child_addr,
|
|
|
|
uint64_t *addr, uint64_t *len);
|
2011-05-03 18:24:07 +00:00
|
|
|
|
2011-10-14 08:26:05 +00:00
|
|
|
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);
|
|
|
|
static inline int fdt_status_okay(void *fdt, int nodeoffset)
|
|
|
|
{
|
|
|
|
return fdt_set_node_status(fdt, nodeoffset, FDT_STATUS_OKAY, 0);
|
|
|
|
}
|
|
|
|
static inline int fdt_status_disabled(void *fdt, int nodeoffset)
|
|
|
|
{
|
|
|
|
return fdt_set_node_status(fdt, nodeoffset, FDT_STATUS_DISABLED, 0);
|
|
|
|
}
|
2014-06-23 22:15:55 +00:00
|
|
|
static inline int fdt_status_fail(void *fdt, int nodeoffset)
|
|
|
|
{
|
|
|
|
return fdt_set_node_status(fdt, nodeoffset, FDT_STATUS_FAIL, 0);
|
|
|
|
}
|
2011-10-14 08:26:05 +00:00
|
|
|
|
2014-06-23 22:15:55 +00:00
|
|
|
int fdt_set_status_by_alias(void *fdt, const char *alias,
|
2011-10-14 08:26:05 +00:00
|
|
|
enum fdt_status status, unsigned int error_code);
|
2014-06-23 22:15:55 +00:00
|
|
|
static inline int fdt_status_okay_by_alias(void *fdt, const char *alias)
|
2011-10-14 08:26:05 +00:00
|
|
|
{
|
|
|
|
return fdt_set_status_by_alias(fdt, alias, FDT_STATUS_OKAY, 0);
|
|
|
|
}
|
2014-06-23 22:15:55 +00:00
|
|
|
static inline int fdt_status_disabled_by_alias(void *fdt, const char *alias)
|
2011-10-14 08:26:05 +00:00
|
|
|
{
|
|
|
|
return fdt_set_status_by_alias(fdt, alias, FDT_STATUS_DISABLED, 0);
|
|
|
|
}
|
2014-06-23 22:15:55 +00:00
|
|
|
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);
|
|
|
|
}
|
2011-10-14 08:26:05 +00:00
|
|
|
|
2014-09-08 19:19:58 +00:00
|
|
|
/* Helper to read a big number; size is in cells (not bytes) */
|
2017-05-19 02:09:26 +00:00
|
|
|
static inline u64 fdt_read_number(const fdt32_t *cell, int size)
|
2014-09-08 19:19:58 +00:00
|
|
|
{
|
|
|
|
u64 r = 0;
|
|
|
|
while (size--)
|
|
|
|
r = (r << 32) | fdt32_to_cpu(*(cell++));
|
|
|
|
return r;
|
|
|
|
}
|
|
|
|
|
2017-05-19 02:09:26 +00:00
|
|
|
void fdt_support_default_count_cells(const void *blob, int parentoffset,
|
2014-09-08 19:19:59 +00:00
|
|
|
int *addrc, int *sizec);
|
2014-10-08 20:58:02 +00:00
|
|
|
int ft_verify_fdt(void *fdt);
|
|
|
|
int arch_fixup_memory_node(void *blob);
|
2014-09-08 19:19:59 +00:00
|
|
|
|
2014-11-17 14:29:11 +00:00
|
|
|
int fdt_setup_simplefb_node(void *fdt, int node, u64 base_address, u32 width,
|
|
|
|
u32 height, u32 stride, const char *format);
|
|
|
|
|
2017-09-04 20:12:11 +00:00
|
|
|
int fdt_overlay_apply_verbose(void *fdt, void *fdto);
|
|
|
|
|
2021-05-04 17:31:21 +00:00
|
|
|
int fdt_valid(struct fdt_header **blobp);
|
|
|
|
|
2018-06-11 19:07:09 +00:00
|
|
|
/**
|
|
|
|
* fdt_get_cells_len() - Get the length of a type of cell in top-level nodes
|
|
|
|
*
|
|
|
|
* Returns the length of the cell type in bytes (4 or 8).
|
|
|
|
*
|
|
|
|
* @blob: Pointer to device tree blob
|
|
|
|
* @nr_cells_name: Name to lookup, e.g. "#address-cells"
|
|
|
|
*/
|
|
|
|
int fdt_get_cells_len(const void *blob, char *nr_cells_name);
|
|
|
|
|
2007-04-06 18:19:43 +00:00
|
|
|
#endif /* ifdef CONFIG_OF_LIBFDT */
|
2014-03-03 11:19:30 +00:00
|
|
|
|
|
|
|
#ifdef USE_HOSTCC
|
|
|
|
int fdtdec_get_int(const void *blob, int node, const char *prop_name,
|
|
|
|
int default_val);
|
2020-03-30 03:56:23 +00:00
|
|
|
|
|
|
|
/*
|
|
|
|
* Count child nodes of one parent node.
|
|
|
|
*
|
|
|
|
* @param blob FDT blob
|
|
|
|
* @param node parent node
|
|
|
|
* @return number of child node; 0 if there is not child node
|
|
|
|
*/
|
|
|
|
int fdtdec_get_child_count(const void *blob, int node);
|
2014-03-03 11:19:30 +00:00
|
|
|
#endif
|
2017-11-23 11:21:41 +00:00
|
|
|
#ifdef CONFIG_FMAN_ENET
|
|
|
|
int fdt_update_ethernet_dt(void *blob);
|
|
|
|
#endif
|
2018-01-16 04:38:24 +00:00
|
|
|
#ifdef CONFIG_FSL_MC_ENET
|
|
|
|
void fdt_fixup_board_enet(void *blob);
|
|
|
|
#endif
|
2020-03-20 09:59:24 +00:00
|
|
|
#ifdef CONFIG_CMD_PSTORE
|
|
|
|
void fdt_fixup_pstore(void *blob);
|
|
|
|
#endif
|
2007-04-06 18:19:43 +00:00
|
|
|
#endif /* ifndef __FDT_SUPPORT_H */
|