ARM: tegra: implement bootcmd_pxe
This retrieves a PXE config file over the network, and executes it. This
allows an extlinux config file to be retrieved over the network and
executed, whereas the existing bootcmd_dhcp retrieves a U-Boot script.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
diff --git a/include/configs/tegra20-common.h b/include/configs/tegra20-common.h
index 5501c6e..21bf977 100644
--- a/include/configs/tegra20-common.h
+++ b/include/configs/tegra20-common.h
@@ -44,6 +44,9 @@
* scriptaddr can be pretty much anywhere that doesn't conflict with something
* else. Put it above BOOTMAPSZ to eliminate conflicts.
*
+ * pxefile_addr_r can be pretty much anywhere that doesn't conflict with
+ * something else. Put it above BOOTMAPSZ to eliminate conflicts.
+ *
* kernel_addr_r must be within the first 128M of RAM in order for the
* kernel's CONFIG_AUTO_ZRELADDR option to work. Since the kernel will
* decompress itself to 0x8000 after the start of RAM, kernel_addr_r
@@ -61,6 +64,7 @@
*/
#define MEM_LAYOUT_ENV_SETTINGS \
"scriptaddr=0x10000000\0" \
+ "pxefile_addr_r=0x10100000\0" \
"kernel_addr_r=0x01000000\0" \
"fdt_addr_r=0x02000000\0" \
"ramdisk_addr_r=0x02100000\0"