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authorMark Brown <broonie@kernel.org>2014-10-20 17:55:07 +0100
committerMark Brown <broonie@kernel.org>2014-10-20 18:27:32 +0100
commitb7a40242c82cd73cfcea305f23e67d068dd8401a (patch)
tree251b49d19cd7c371847ae1f951e1b537ca0e1c15 /drivers/firmware/efi/libstub/fdt.c
parentd26833bfce5e56017bea9f1f50838f20e18e7b7e (diff)
parent9c6de47d53a3ce8df1642ae67823688eb98a190a (diff)
Merge branch 'fix/dw' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi into spi-dw
Conflicts: drivers/spi/spi-dw-mid.c
Diffstat (limited to 'drivers/firmware/efi/libstub/fdt.c')
-rw-r--r--drivers/firmware/efi/libstub/fdt.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/firmware/efi/libstub/fdt.c b/drivers/firmware/efi/libstub/fdt.c
index a56bb3528755..c846a9608cbd 100644
--- a/drivers/firmware/efi/libstub/fdt.c
+++ b/drivers/firmware/efi/libstub/fdt.c
@@ -22,7 +22,7 @@ efi_status_t update_fdt(efi_system_table_t *sys_table, void *orig_fdt,
unsigned long map_size, unsigned long desc_size,
u32 desc_ver)
{
- int node, prev;
+ int node, prev, num_rsv;
int status;
u32 fdt_val32;
u64 fdt_val64;
@@ -73,6 +73,14 @@ efi_status_t update_fdt(efi_system_table_t *sys_table, void *orig_fdt,
prev = node;
}
+ /*
+ * Delete all memory reserve map entries. When booting via UEFI,
+ * kernel will use the UEFI memory map to find reserved regions.
+ */
+ num_rsv = fdt_num_mem_rsv(fdt);
+ while (num_rsv-- > 0)
+ fdt_del_mem_rsv(fdt, num_rsv);
+
node = fdt_subnode_offset(fdt, 0, "chosen");
if (node < 0) {
node = fdt_add_subnode(fdt, 0, "chosen");