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![Sean Anderson](/assets/img/avatar_default.png)
dev_read_addr_ptr had different semantics depending on whether OF_LIVE was enabled. This patch converts both implementations to return NULL on error, and converts all call sites which check for FDT_ADDR_T_NONE to check for NULL instead. This patch also removes the call to map_physmem, since we have dev_remap_addr* for those semantics. Signed-off-by: Sean Anderson <seanga2@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
362 lines
8.7 KiB
C
362 lines
8.7 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (c) 2017 Google, Inc
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* Written by Simon Glass <sjg@chromium.org>
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*/
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#include <common.h>
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#include <dm.h>
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#include <dm/of_access.h>
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#include <mapmem.h>
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#include <asm/types.h>
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#include <asm/io.h>
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int dev_read_u32(const struct udevice *dev, const char *propname, u32 *outp)
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{
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return ofnode_read_u32(dev_ofnode(dev), propname, outp);
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}
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int dev_read_u32_default(const struct udevice *dev, const char *propname,
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int def)
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{
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return ofnode_read_u32_default(dev_ofnode(dev), propname, def);
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}
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int dev_read_u32_index(struct udevice *dev, const char *propname, int index,
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u32 *outp)
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{
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return ofnode_read_u32_index(dev_ofnode(dev), propname, index, outp);
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}
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u32 dev_read_u32_index_default(struct udevice *dev, const char *propname,
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int index, u32 def)
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{
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return ofnode_read_u32_index_default(dev_ofnode(dev), propname, index,
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def);
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}
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int dev_read_s32(const struct udevice *dev, const char *propname, s32 *outp)
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{
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return ofnode_read_u32(dev_ofnode(dev), propname, (u32 *)outp);
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}
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int dev_read_s32_default(const struct udevice *dev, const char *propname,
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int def)
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{
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return ofnode_read_u32_default(dev_ofnode(dev), propname, def);
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}
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int dev_read_u32u(const struct udevice *dev, const char *propname, uint *outp)
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{
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u32 val;
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int ret;
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ret = ofnode_read_u32(dev_ofnode(dev), propname, &val);
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if (ret)
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return ret;
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*outp = val;
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return 0;
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}
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int dev_read_u64(const struct udevice *dev, const char *propname, u64 *outp)
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{
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return ofnode_read_u64(dev_ofnode(dev), propname, outp);
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}
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u64 dev_read_u64_default(const struct udevice *dev, const char *propname,
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u64 def)
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{
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return ofnode_read_u64_default(dev_ofnode(dev), propname, def);
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}
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const char *dev_read_string(const struct udevice *dev, const char *propname)
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{
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return ofnode_read_string(dev_ofnode(dev), propname);
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}
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bool dev_read_bool(const struct udevice *dev, const char *propname)
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{
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return ofnode_read_bool(dev_ofnode(dev), propname);
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}
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ofnode dev_read_subnode(const struct udevice *dev, const char *subnode_name)
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{
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return ofnode_find_subnode(dev_ofnode(dev), subnode_name);
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}
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ofnode dev_read_first_subnode(const struct udevice *dev)
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{
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return ofnode_first_subnode(dev_ofnode(dev));
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}
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ofnode dev_read_next_subnode(ofnode node)
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{
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return ofnode_next_subnode(node);
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}
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int dev_read_size(const struct udevice *dev, const char *propname)
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{
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return ofnode_read_size(dev_ofnode(dev), propname);
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}
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fdt_addr_t dev_read_addr_index(const struct udevice *dev, int index)
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{
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if (ofnode_is_np(dev_ofnode(dev)))
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return ofnode_get_addr_index(dev_ofnode(dev), index);
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else
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return devfdt_get_addr_index(dev, index);
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}
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fdt_addr_t dev_read_addr_size_index(const struct udevice *dev, int index,
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fdt_size_t *size)
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{
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if (ofnode_is_np(dev_ofnode(dev)))
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return ofnode_get_addr_size_index(dev_ofnode(dev), index, size);
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else
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return devfdt_get_addr_size_index(dev, index, size);
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}
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void *dev_remap_addr_index(const struct udevice *dev, int index)
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{
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fdt_addr_t addr = dev_read_addr_index(dev, index);
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if (addr == FDT_ADDR_T_NONE)
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return NULL;
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return map_physmem(addr, 0, MAP_NOCACHE);
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}
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fdt_addr_t dev_read_addr_name(const struct udevice *dev, const char *name)
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{
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int index = dev_read_stringlist_search(dev, "reg-names", name);
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if (index < 0)
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return FDT_ADDR_T_NONE;
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else
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return dev_read_addr_index(dev, index);
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}
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fdt_addr_t dev_read_addr_size_name(const struct udevice *dev, const char *name,
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fdt_size_t *size)
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{
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int index = dev_read_stringlist_search(dev, "reg-names", name);
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if (index < 0)
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return FDT_ADDR_T_NONE;
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else
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return dev_read_addr_size_index(dev, index, size);
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}
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void *dev_remap_addr_name(const struct udevice *dev, const char *name)
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{
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fdt_addr_t addr = dev_read_addr_name(dev, name);
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if (addr == FDT_ADDR_T_NONE)
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return NULL;
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return map_physmem(addr, 0, MAP_NOCACHE);
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}
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fdt_addr_t dev_read_addr(const struct udevice *dev)
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{
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return dev_read_addr_index(dev, 0);
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}
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void *dev_read_addr_ptr(const struct udevice *dev)
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{
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fdt_addr_t addr = dev_read_addr(dev);
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return (addr == FDT_ADDR_T_NONE) ? NULL : (void *)(uintptr_t)addr;
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}
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void *dev_remap_addr(const struct udevice *dev)
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{
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return dev_remap_addr_index(dev, 0);
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}
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fdt_addr_t dev_read_addr_size(const struct udevice *dev, const char *property,
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fdt_size_t *sizep)
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{
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return ofnode_get_addr_size(dev_ofnode(dev), property, sizep);
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}
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const char *dev_read_name(const struct udevice *dev)
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{
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return ofnode_get_name(dev_ofnode(dev));
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}
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int dev_read_stringlist_search(const struct udevice *dev, const char *property,
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const char *string)
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{
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return ofnode_stringlist_search(dev_ofnode(dev), property, string);
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}
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int dev_read_string_index(const struct udevice *dev, const char *propname,
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int index, const char **outp)
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{
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return ofnode_read_string_index(dev_ofnode(dev), propname, index, outp);
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}
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int dev_read_string_count(const struct udevice *dev, const char *propname)
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{
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return ofnode_read_string_count(dev_ofnode(dev), propname);
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}
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int dev_read_phandle_with_args(const struct udevice *dev, const char *list_name,
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const char *cells_name, int cell_count,
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int index, struct ofnode_phandle_args *out_args)
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{
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return ofnode_parse_phandle_with_args(dev_ofnode(dev), list_name,
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cells_name, cell_count, index,
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out_args);
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}
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int dev_count_phandle_with_args(const struct udevice *dev,
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const char *list_name, const char *cells_name)
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{
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return ofnode_count_phandle_with_args(dev_ofnode(dev), list_name,
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cells_name);
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}
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int dev_read_addr_cells(const struct udevice *dev)
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{
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return ofnode_read_addr_cells(dev_ofnode(dev));
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}
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int dev_read_size_cells(const struct udevice *dev)
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{
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return ofnode_read_size_cells(dev_ofnode(dev));
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}
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int dev_read_simple_addr_cells(const struct udevice *dev)
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{
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return ofnode_read_simple_addr_cells(dev_ofnode(dev));
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}
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int dev_read_simple_size_cells(const struct udevice *dev)
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{
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return ofnode_read_simple_size_cells(dev_ofnode(dev));
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}
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int dev_read_phandle(const struct udevice *dev)
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{
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ofnode node = dev_ofnode(dev);
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if (ofnode_is_np(node))
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return ofnode_to_np(node)->phandle;
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else
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return fdt_get_phandle(gd->fdt_blob, ofnode_to_offset(node));
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}
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const void *dev_read_prop(const struct udevice *dev, const char *propname,
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int *lenp)
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{
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return ofnode_get_property(dev_ofnode(dev), propname, lenp);
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}
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int dev_read_first_prop(const struct udevice *dev, struct ofprop *prop)
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{
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return ofnode_get_first_property(dev_ofnode(dev), prop);
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}
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int dev_read_next_prop(struct ofprop *prop)
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{
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return ofnode_get_next_property(prop);
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}
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const void *dev_read_prop_by_prop(struct ofprop *prop,
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const char **propname, int *lenp)
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{
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return ofnode_get_property_by_prop(prop, propname, lenp);
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}
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int dev_read_alias_seq(const struct udevice *dev, int *devnump)
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{
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ofnode node = dev_ofnode(dev);
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const char *uc_name = dev->uclass->uc_drv->name;
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int ret = -ENOTSUPP;
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if (ofnode_is_np(node)) {
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ret = of_alias_get_id(ofnode_to_np(node), uc_name);
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if (ret >= 0)
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*devnump = ret;
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} else {
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#if CONFIG_IS_ENABLED(OF_CONTROL)
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ret = fdtdec_get_alias_seq(gd->fdt_blob, uc_name,
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ofnode_to_offset(node), devnump);
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#endif
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}
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return ret;
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}
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int dev_read_u32_array(const struct udevice *dev, const char *propname,
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u32 *out_values, size_t sz)
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{
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return ofnode_read_u32_array(dev_ofnode(dev), propname, out_values, sz);
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}
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const uint8_t *dev_read_u8_array_ptr(const struct udevice *dev,
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const char *propname, size_t sz)
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{
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return ofnode_read_u8_array_ptr(dev_ofnode(dev), propname, sz);
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}
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int dev_read_enabled(const struct udevice *dev)
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{
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ofnode node = dev_ofnode(dev);
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if (ofnode_is_np(node))
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return of_device_is_available(ofnode_to_np(node));
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else
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return fdtdec_get_is_enabled(gd->fdt_blob,
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ofnode_to_offset(node));
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}
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int dev_read_resource(const struct udevice *dev, uint index,
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struct resource *res)
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{
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return ofnode_read_resource(dev_ofnode(dev), index, res);
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}
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int dev_read_resource_byname(const struct udevice *dev, const char *name,
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struct resource *res)
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{
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return ofnode_read_resource_byname(dev_ofnode(dev), name, res);
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}
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u64 dev_translate_address(const struct udevice *dev, const fdt32_t *in_addr)
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{
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return ofnode_translate_address(dev_ofnode(dev), in_addr);
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}
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u64 dev_translate_dma_address(const struct udevice *dev, const fdt32_t *in_addr)
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{
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return ofnode_translate_dma_address(dev_ofnode(dev), in_addr);
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}
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int dev_read_alias_highest_id(const char *stem)
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{
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if (of_live_active())
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return of_alias_get_highest_id(stem);
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return fdtdec_get_alias_highest_id(gd->fdt_blob, stem);
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}
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fdt_addr_t dev_read_addr_pci(const struct udevice *dev)
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{
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ulong addr;
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addr = dev_read_addr(dev);
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if (addr == FDT_ADDR_T_NONE && !of_live_active())
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addr = devfdt_get_addr_pci(dev);
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return addr;
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}
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int dev_get_child_count(const struct udevice *dev)
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{
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return ofnode_get_child_count(dev_ofnode(dev));
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}
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