sh: add romImage MMCIF boot for sh7724 and Ecovec V2
This patch is V2 of the MMCIF romImage boot support
for sh7724 and the Ecovec board. With this patch
applied and CONFIG_ROMIMAGE_MMCIF selected the
romImage kernel image can be written to a MMC card
and booted directly by the sh7724 cpu.
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index c5ee4ce..22d2511 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -776,6 +776,17 @@
default "0x00010000" if PAGE_SIZE_64KB
default "0x00000000"
+config ROMIMAGE_MMCIF
+ bool "Include MMCIF loader in romImage (EXPERIMENTAL)"
+ depends on CPU_SUBTYPE_SH7724 && EXPERIMENTAL
+ help
+ Say Y here to include experimental MMCIF loading code in
+ romImage. With this enabled it is possible to write the romImage
+ kernel image to an MMC card and boot the kernel straight from
+ the reset vector. At reset the processor Mask ROM will load the
+ first part of the romImage which in turn loads the rest the kernel
+ image to RAM using the MMCIF hardware block.
+
choice
prompt "Kernel command line"
optional
