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device_tree: Use be32dec/be32enc where appropriate 

This patch rewrites some of the device tree code to use the new
be32dec/be32enc helpers where they can make the code cleaner.

Change-Id: I437bbd6645a556ae9a0cfe6ea14638098e4c3606
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32860
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Julius Werner 2019-05-07 17:38:12 -07:00 committed by Patrick Georgi
parent b3f852fba3
commit a5ea3a271b
1 changed files with 8 additions and 8 deletions
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16
src/lib/device_tree.c
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@ -56,7 +56,7 @@ int fdt_next_property(const void *blob, uint32_t offset,
int fdt_node_name(const void *blob, uint32_t offset, const char **name)
{
uint8_t *ptr = ((uint8_t *)blob) + offset;
if (be32toh(*(uint32_t *)ptr) != FDT_TOKEN_BEGIN_NODE)
if (be32dec(ptr) != FDT_TOKEN_BEGIN_NODE)
return 0;
ptr += 4;
@ -358,14 +358,14 @@ static void dt_flatten_prop(struct device_tree_property *prop,
uint8_t *dstruct = (uint8_t *)*struct_start;
uint8_t *dstrings = (uint8_t *)*strings_start;
*((uint32_t *)dstruct) = htobe32(FDT_TOKEN_PROPERTY);
be32enc(dstruct, FDT_TOKEN_PROPERTY);
dstruct += sizeof(uint32_t);
*((uint32_t *)dstruct) = htobe32(prop->prop.size);
be32enc(dstruct, prop->prop.size);
dstruct += sizeof(uint32_t);
uint32_t name_offset = (uintptr_t)dstrings - (uintptr_t)strings_base;
*((uint32_t *)dstruct) = htobe32(name_offset);
be32enc(dstruct, name_offset);
dstruct += sizeof(uint32_t);
strcpy((char *)dstrings, prop->prop.name);
@ -385,7 +385,7 @@ static void dt_flatten_node(const struct device_tree_node *node,
uint8_t *dstruct = (uint8_t *)*struct_start;
uint8_t *dstrings = (uint8_t *)*strings_start;
*((uint32_t *)dstruct) = htobe32(FDT_TOKEN_BEGIN_NODE);
be32enc(dstruct, FDT_TOKEN_BEGIN_NODE);
dstruct += sizeof(uint32_t);
strcpy((char *)dstruct, node->name);
@ -401,7 +401,7 @@ static void dt_flatten_node(const struct device_tree_node *node,
dt_flatten_node(child, (void **)&dstruct, strings_base,
(void **)&dstrings);
*((uint32_t *)dstruct) = htobe32(FDT_TOKEN_END_NODE);
be32enc(dstruct, FDT_TOKEN_END_NODE);
dstruct += sizeof(uint32_t);
*struct_start = dstruct;
@ -489,9 +489,9 @@ void dt_read_cell_props(const struct device_tree_node *node, u32 *addrcp,
struct device_tree_property *prop;
list_for_each(prop, node->properties, list_node) {
if (addrcp && !strcmp("#address-cells", prop->prop.name))
*addrcp = be32toh(*(u32 *)prop->prop.data);
*addrcp = be32dec(prop->prop.data);
if (sizecp && !strcmp("#size-cells", prop->prop.name))
*sizecp = be32toh(*(u32 *)prop->prop.data);
*sizecp = be32dec(prop->prop.data);
}
}