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vexpress64: juno: add optional initrd

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Some OS images require an initrd on Juno.

If the file ramdisk.img exists in NOR flash, then we load it and pass
the address to the kernel.  Otherwise, we pass the "-" parameter as
before.

Signed-off-by: Ryan Harkin <ryan.harkin@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Ryan Harkin 2015-10-09 17:18:06 +01:00 committed by Tom Rini
parent 6607d397c2
commit 4a6bdb59e1
1 changed files with 8 additions and 1 deletions
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9
include/configs/vexpress_aemv8a.h
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@ -189,6 +189,8 @@
#define CONFIG_EXTRA_ENV_SETTINGS \
"kernel_name=Image\0" \
"kernel_addr=0x80000000\0" \
"initrd_name=ramdisk.img\0" \
"initrd_addr=0x84000000\0" \
"fdt_name=juno\0" \
"fdt_addr=0x83000000\0" \
"fdt_high=0xffffffffffffffff\0" \
@ -207,7 +209,12 @@
#define CONFIG_BOOTCOMMAND "afs load ${kernel_name} ${kernel_addr} ; " \
"afs load ${fdt_name} ${fdt_addr} ; " \
"fdt addr ${fdt_addr}; fdt resize; " \
"booti ${kernel_addr} - ${fdt_addr}"
"if afs load ${initrd_name} ${initrd_addr} ; "\
"then "\
" setenv initrd_param ${initrd_addr}; "\
" else setenv initrd_param -; "\
"fi ; " \
"booti ${kernel_addr} ${initrd_param} ${fdt_addr}"
#define CONFIG_BOOTDELAY 1