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authorAnup Patel2022-01-27 11:41:09 +0530
committerLeo Yu-Chi Liang2022-02-10 11:18:13 +0800
commitef19131b800806a129df5468aef1d2c5de9b0a89 (patch)
tree2c0a34eaa1be25dfad02ca9e7c6d169441c8fd52 /board/emulation
parentbe7ce1a81803905c0f81281cafc6fe5b54241d33 (diff)
riscv: qemu: Implement is_flash_available() for MTD NOR
Currently, if MTD NOR is enabled then U-Boot tries to issue flash commands even when CFI flash DT node is not present. This causes access fault on RISC-V emulators or ISS which do not emulate CFI flash. To handle this issue, we implement is_flash_available() for qemu-riscv board which will return 1 only if CFI flash DT node is present. Fixes: d248627f9d42 ("riscv: qemu: Enable MTD NOR flash support") Signed-off-by: Anup Patel <apatel@ventanamicro.com> Reviewed-by: Rick Chen <rick@andestech.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com>
Diffstat (limited to 'board/emulation')
-rw-r--r--board/emulation/qemu-riscv/qemu-riscv.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/board/emulation/qemu-riscv/qemu-riscv.c b/board/emulation/qemu-riscv/qemu-riscv.c
index b0d9dd59b12..ae3b7a3295c 100644
--- a/board/emulation/qemu-riscv/qemu-riscv.c
+++ b/board/emulation/qemu-riscv/qemu-riscv.c
@@ -5,6 +5,7 @@
#include <common.h>
#include <dm.h>
+#include <dm/ofnode.h>
#include <env.h>
#include <fdtdec.h>
#include <image.h>
@@ -16,6 +17,17 @@
DECLARE_GLOBAL_DATA_PTR;
+#if IS_ENABLED(CONFIG_MTD_NOR_FLASH)
+int is_flash_available(void)
+{
+ if (!ofnode_equal(ofnode_by_compatible(ofnode_null(), "cfi-flash"),
+ ofnode_null()))
+ return 1;
+
+ return 0;
+}
+#endif
+
int board_init(void)
{
/*