am335x_evm: Add SPI environment variables

* Added variables to support SPI booting
* Note that the first 512KiB are reserved for 4 copies of SPL.

Signed-off-by: Chase Maupin <Chase.Maupin@ti.com>
Signed-off-by: Tom Rini <trini@ti.com>

diff --git a/include/configs/am335x_evm.h b/include/configs/am335x_evm.h
index 77bd734..54707d4 100644 (file)
--- a/include/configs/am335x_evm.h
+++ b/include/configs/am335x_evm.h
@@ -75,6 +75,15 @@
                "${optargs} " \
                "root=${nandroot} " \
                "rootfstype=${nandrootfstype}\0" \
+       "spiroot=/dev/mtdblock4 rw\0" \
+       "spirootfstype=jffs2\0" \
+       "spisrcaddr=0xe0000\0" \
+       "spiimgsize=0x362000\0" \
+       "spibusno=0\0" \
+       "spiargs=setenv bootargs console=${console} " \
+               "${optargs} " \
+               "root=${spiroot} " \
+               "rootfstype=${spirootfstype}\0" \
        "bootenv=uEnv.txt\0" \
        "loadbootenv=fatload mmc ${mmcdev} ${loadaddr} ${bootenv}\0" \
        "importbootenv=echo Importing environment from mmc ...; " \
@@ -93,6 +102,11 @@
                "run nandargs; " \
                "nand read ${loadaddr} ${nandsrcaddr} ${nandimgsize}; " \
                "bootm ${loadaddr}\0" \
+       "spiboot=echo Booting from spi ...; " \
+               "run spiargs; " \
+               "sf probe ${spibusno}:0; " \
+               "sf read ${loadaddr} ${spisrcaddr} ${spiimgsize}; " \
+               "bootm ${loadaddr}\0" \
        "ramboot=echo Booting from ramdisk ...; " \
                "run ramargs; " \
                "bootm ${loadaddr}\0" \