Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu...@renesas.com>
---
doc/README.sh7757lcr | 14 ++++++++++++++
1 files changed, 14 insertions(+), 0 deletions(-)
diff --git a/doc/README.sh7757lcr b/doc/README.sh7757lcr
index 49fea50..78a9b8f 100644
--- a/doc/README.sh7757lcr
+++ b/doc/README.sh7757lcr
@@ -61,3 +61,17 @@ You can write MAC address to SPI ROM.
ETHERC ch1 = 00:00:87:6c:21:81
GETHERC ch0 = 00:00:87:6c:21:82
GETHERC ch1 = 00:00:87:6c:21:83
+
+
+Update SPI ROM:
+============================
+
+1. Copy u-boot image to RAM area.
+2. Probe SPI device.
+ => sf probe 0
+ 8192 KiB M25P64 at 0:0 is now current device
+3. Erase SPI ROM.
+ => sf erase 0 80000
+4. Write u-boot image to SPI ROM.
+ => sf write 0x89000000 0 80000
+
--
1.7.7
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