Hello U-Boot users,
This is my first patch, so any suggestions would be welcome.
I have an AMCC Yosemite board, which I recently updated to use the
recent ARCH=powerpc work from mainline Linux. Without this patch, trying
to boot from a uImage does not work. The kernel panics while trying to
parse the device tree blob. Note that a cuImage works fine previous to
this patch.
Also, I noticed that when I started booting with a uImage and dtb, that
eth0 had a MAC address of 00:00:00:00:00:00. Adding
#define CONFIG_HAS_ETH0 1 fixed this issue, by setting the MAC address
via the eth0addr variable in U-Boot.
I tested the following setups:
1) Old ARCH=ppc 2.6.13 kernel
2) New ARCH=powerpc 2.6.26rc0 kernel (cuImage)
3) New ARCH=powerpc 2.6.26rc0 kernel (uImage + dtb)
I ran MAKEALL both with and without the patch. The only changes in output
were a ~20kB increase in image size for the yellowstone and yosemite boards.
Thanks for all of the great work.
Ira
--
>From d76d560b1f61126c63320cec18d5b436f4bb10c0 Mon Sep 17 00:00:00 2001
From: Ira W. Snyder <[EMAIL PROTECTED]>
Date: Sat, 26 Apr 2008 16:06:26 -0700
Subject: [PATCH] PPC-44x: Add Open Firmware support to AMCC Yosemite
Add support for booting with a device tree blob. This is needed to boot
ARCH=powerpc kernels. Also add support for setting the eth0 mac address
via the eth0addr variable.
Signed-off-by: Ira W. Snyder <[EMAIL PROTECTED]>
---
board/amcc/yosemite/yosemite.c | 11 +++++++++++
include/configs/yosemite.h | 9 +++++++++
2 files changed, 20 insertions(+), 0 deletions(-)
diff --git a/board/amcc/yosemite/yosemite.c b/board/amcc/yosemite/yosemite.c
index 6ec922a..fa610c3 100644
--- a/board/amcc/yosemite/yosemite.c
+++ b/board/amcc/yosemite/yosemite.c
@@ -26,6 +26,9 @@
#include <asm/processor.h>
#include <asm/io.h>
#include <spd_sdram.h>
+#if defined(CONFIG_OF_LIBFDT)
+ #include <libfdt.h>
+#endif
DECLARE_GLOBAL_DATA_PTR;
@@ -554,3 +557,11 @@ void board_reset(void)
/* give reset to BCSR */
*(unsigned char *)(CFG_BCSR_BASE | 0x06) = 0x09;
}
+
+#if defined(CONFIG_OF_BOARD_SETUP)
+void ft_board_setup(void *blob, bd_t *bd)
+{
+ ft_cpu_setup(blob, bd);
+
+}
+#endif
diff --git a/include/configs/yosemite.h b/include/configs/yosemite.h
index c9323f6..7dcd4e6 100644
--- a/include/configs/yosemite.h
+++ b/include/configs/yosemite.h
@@ -141,6 +141,14 @@
/*-----------------------------------------------------------------------
+ * Open Firmware (Linux-2.6.26+)
+ *----------------------------------------------------------------------*/
+
+/* pass open firmware flat tree */
+#define CONFIG_OF_LIBFDT 1
+#define CONFIG_OF_BOARD_SETUP 1
+
+/*-----------------------------------------------------------------------
* I2C
*----------------------------------------------------------------------*/
#define CONFIG_HARD_I2C 1 /* I2C with hardware
support */
@@ -227,6 +235,7 @@
#define CONFIG_MII 1 /* MII PHY management */
#define CONFIG_NET_MULTI 1 /* required for netconsole */
#define CONFIG_PHY1_ADDR 3
+#define CONFIG_HAS_ETH0 1 /* add support for "eth0addr"
*/
#define CONFIG_HAS_ETH1 1 /* add support for "eth1addr"
*/
#define CONFIG_PHY_ADDR 1 /* PHY address, See schematics
*/
--
1.5.4.3
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