From 426337455e06c2d05c40f48e488b95a12e4aa056 Mon Sep 17 00:00:00 2001
From: York Sun <york.sun@nxp.com>
Date: Mon, 6 Mar 2017 09:02:27 -0800
Subject: [PATCH] efi: Add a hook to allow adding memory mapping
Instead of adding all memory banks, add a hook so individual SoC/board
can has its own implementation.
Signed-off-by: York Sun <york.sun@nxp.com>
CC: Alexander Graf <agraf@suse.de>
Reviewed-by: Alexander Graf <agraf@suse.de>
---
lib/efi_loader/efi_memory.c | 14 ++++++++++----
1 file changed, 10 insertions(+), 4 deletions(-)
diff --git a/lib/efi_loader/efi_memory.c b/lib/efi_loader/efi_memory.c
index 95aa590c8af..db2ae19f590 100644
--- a/lib/efi_loader/efi_memory.c
+++ b/lib/efi_loader/efi_memory.c
@@ -431,11 +431,8 @@ efi_status_t efi_get_memory_map(unsigned long *memory_map_size,
return EFI_SUCCESS;
}
-int efi_memory_init(void)
+__weak void efi_add_known_memory(void)
{
- unsigned long runtime_start, runtime_end, runtime_pages;
- unsigned long uboot_start, uboot_pages;
- unsigned long uboot_stack_size = 16 * 1024 * 1024;
int i;
/* Add RAM */
@@ -448,6 +445,15 @@ int efi_memory_init(void)
efi_add_memory_map(start, pages, EFI_CONVENTIONAL_MEMORY,
false);
}
+}
+
+int efi_memory_init(void)
+{
+ unsigned long runtime_start, runtime_end, runtime_pages;
+ unsigned long uboot_start, uboot_pages;
+ unsigned long uboot_stack_size = 16 * 1024 * 1024;
+
+ efi_add_known_memory();
/* Add U-Boot */
uboot_start = (gd->start_addr_sp - uboot_stack_size) & ~EFI_PAGE_MASK;
--
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