2007-04-07 03:19:43 +09:00
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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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2013-07-08 16:37:19 +09:00
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* SPDX-License-Identifier: GPL-2.0+
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2007-04-07 03:19:43 +09:00
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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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2013-02-08 09:49:54 +09:00
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#include <libfdt.h>
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2007-04-07 03:19:43 +09:00
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2014-04-12 00:09:40 +09:00
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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 18:09:44 +09:00
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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 19:01:53 +09:00
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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 18:27:03 +09:00
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int fdt_root(void *fdt);
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2015-05-24 19:01:53 +09:00
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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 17:41:00 +09:00
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int fdt_chosen(void *fdt);
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2015-05-24 19:01:53 +09:00
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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 17:40:59 +09:00
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int fdt_initrd(void *fdt, ulong initrd_start, ulong initrd_end);
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2015-05-24 19:01:53 +09:00
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2007-11-04 09:46:28 +09:00
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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 11:36:32 +09:00
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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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2007-11-22 04:30:15 +09:00
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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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2015-06-21 08:29:54 +09:00
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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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2007-11-27 05:57:45 +09:00
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int fdt_fixup_memory(void *blob, u64 start, u64 size);
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2015-06-21 08:29:54 +09:00
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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 11:02:10 +09:00
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#ifdef CONFIG_ARCH_FIXUP_FDT_MEMORY
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2010-10-14 04:57:33 +09:00
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int fdt_fixup_memory_banks(void *blob, u64 start[], u64 size[], int banks);
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2016-11-26 11:02:10 +09:00
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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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2015-06-21 08:29:54 +09:00
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2008-08-20 05:41:18 +09:00
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void fdt_fixup_ethernet(void *fdt);
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2007-12-28 19:56:30 +09:00
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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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2008-01-08 04:31:19 +09:00
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void fdt_fixup_qe_firmware(void *fdt);
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2007-04-07 03:19:43 +09:00
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2015-04-09 03:45:39 +09:00
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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 18:11:21 +09:00
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#if defined(CONFIG_USB_EHCI_FSL) || defined(CONFIG_USB_XHCI_FSL)
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2016-09-16 20:42:15 +09:00
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void fsl_fdt_fixup_dr_usb(void *blob, bd_t *bd);
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2008-03-15 05:20:18 +09:00
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#else
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2016-09-16 20:42:15 +09:00
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static inline void fsl_fdt_fixup_dr_usb(void *blob, bd_t *bd) {}
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2016-04-05 18:11:21 +09:00
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#endif /* defined(CONFIG_USB_EHCI_FSL) || defined(CONFIG_USB_XHCI_FSL) */
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2008-03-15 05:20:18 +09:00
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2010-06-02 02:24:27 +09:00
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#if defined(CONFIG_SYS_FSL_SEC_COMPAT)
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2008-06-17 05:55:53 +09:00
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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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2008-10-23 13:33:56 +09:00
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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 09:58:49 +09:00
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int fdt_find_or_add_subnode(void *fdt, int parentoffset, const char *name);
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2014-10-24 09:58:47 +09:00
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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 09:58:53 +09:00
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* This function is called if CONFIG_OF_BOARD_SETUP is defined
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2014-10-24 09:58:47 +09:00
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*
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* @param blob FDT blob to update
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* @param bd_t Pointer to board data
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* @return 0 if ok, or -FDT_ERR_... on error
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*/
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int ft_board_setup(void *blob, bd_t *bd);
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2014-04-05 02:16:47 +09:00
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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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void ft_board_setup_ex(void *blob, bd_t *bd);
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2007-07-11 09:40:39 +09:00
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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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2014-10-24 09:58:54 +09:00
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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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* @param bd_t Pointer to board data
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* @return 0 if ok, or -FDT_ERR_... on error
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*/
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int ft_system_setup(void *blob, bd_t *bd);
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2015-02-05 12:56:53 +09:00
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void set_working_fdt_addr(ulong addr);
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2016-09-21 01:10:43 +09:00
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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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2011-05-04 03:35:10 +09:00
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int fdt_increase_size(void *fdt, int add_len);
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2008-08-15 22:24:39 +09:00
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2010-09-16 21:01:53 +09:00
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int fdt_fixup_nor_flash_size(void *blob);
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2009-10-21 18:59:52 +09:00
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2016-07-13 06:37:35 +09:00
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#if defined(CONFIG_FDT_FIXUP_PARTITIONS)
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2010-03-17 01:10:05 +09:00
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void fdt_fixup_mtdparts(void *fdt, void *node_info, int node_info_size);
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2016-07-13 06:37:35 +09:00
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#else
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static inline void fdt_fixup_mtdparts(void *fdt, void *node_info,
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int node_info_size) {}
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#endif
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2010-03-31 00:19:26 +09:00
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void fdt_del_node_and_alias(void *blob, const char *alias);
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2016-08-06 00:47:50 +09:00
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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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2010-07-05 02:48:21 +09:00
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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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2010-07-10 06:18:58 +09:00
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int fdt_alloc_phandle(void *blob);
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2011-08-01 14:23:23 +09:00
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int fdt_set_phandle(void *fdt, int nodeoffset, uint32_t phandle);
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2011-09-21 08:24:34 +09:00
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unsigned int fdt_create_phandle(void *fdt, int nodeoffset);
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2010-08-18 18:25:20 +09:00
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int fdt_add_edid(void *blob, const char *compat, unsigned char *buf);
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2010-03-17 01:10:05 +09:00
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2011-05-04 03:24:07 +09:00
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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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2017-05-19 11:09:00 +09:00
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u64 fdt_get_base_address(const void *fdt, int node);
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2014-04-12 00:09:41 +09:00
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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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2011-05-04 03:24:07 +09:00
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2011-10-14 17:26:05 +09:00
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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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2014-06-24 07:15:55 +09:00
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static inline int fdt_status_fail(void *fdt, int nodeoffset)
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{
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return fdt_set_node_status(fdt, nodeoffset, FDT_STATUS_FAIL, 0);
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}
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2011-10-14 17:26:05 +09:00
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2014-06-24 07:15:55 +09:00
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int fdt_set_status_by_alias(void *fdt, const char *alias,
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2011-10-14 17:26:05 +09:00
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enum fdt_status status, unsigned int error_code);
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2014-06-24 07:15:55 +09:00
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static inline int fdt_status_okay_by_alias(void *fdt, const char *alias)
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2011-10-14 17:26:05 +09:00
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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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2014-06-24 07:15:55 +09:00
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static inline int fdt_status_disabled_by_alias(void *fdt, const char *alias)
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2011-10-14 17:26:05 +09:00
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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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2014-06-24 07:15:55 +09:00
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static inline int fdt_status_fail_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_FAIL, 0);
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}
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2011-10-14 17:26:05 +09:00
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2014-09-09 04:19:58 +09:00
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/* Helper to read a big number; size is in cells (not bytes) */
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static inline u64 of_read_number(const fdt32_t *cell, int size)
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{
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u64 r = 0;
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while (size--)
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r = (r << 32) | fdt32_to_cpu(*(cell++));
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return r;
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}
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2016-08-06 00:47:50 +09:00
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void of_bus_default_count_cells(const void *blob, int parentoffset,
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2014-09-09 04:19:59 +09:00
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int *addrc, int *sizec);
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2014-10-09 05:58:02 +09:00
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int ft_verify_fdt(void *fdt);
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int arch_fixup_memory_node(void *blob);
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2014-09-09 04:19:59 +09:00
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2014-11-17 23:29:11 +09:00
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int fdt_setup_simplefb_node(void *fdt, int node, u64 base_address, u32 width,
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u32 height, u32 stride, const char *format);
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2007-04-07 03:19:43 +09:00
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#endif /* ifdef CONFIG_OF_LIBFDT */
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2014-03-03 20:19:30 +09:00
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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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2007-04-07 03:19:43 +09:00
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#endif /* ifndef __FDT_SUPPORT_H */
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