On Thu, Jul 11, 2013 at 4:52 PM, Nishanth Menon nm@ti.com wrote:
For folks not using concatenated device tree with uImage, having an handy function to find and load device tree is very handy.
So introduce findfdt and loadfdt and run findfdt by default to make it easier on user scripts.
Signed-off-by: Nishanth Menon nm@ti.com
include/configs/omap3_beagle.h | 17 +++++++++++++++++ 1 file changed, 17 insertions(+)
diff --git a/include/configs/omap3_beagle.h b/include/configs/omap3_beagle.h index bdeee17..7833208 100644 --- a/include/configs/omap3_beagle.h +++ b/include/configs/omap3_beagle.h @@ -210,6 +210,8 @@ #define CONFIG_EXTRA_ENV_SETTINGS \ "loadaddr=0x80200000\0" \ "rdaddr=0x81000000\0" \
"fdt_high=0xffffffff\0" \"fdtaddr=0x80f80000\0" \ "usbtty=cdc_acm\0" \ "bootfile=uImage\0" \ "ramdisk=ramdisk.gz\0" \@@ -250,6 +252,19 @@ "omapdss.def_disp=${defaultdisplay} " \ "root=${nandroot} " \ "rootfstype=${nandrootfstype}\0" \
"findfdt=" \"if test $beaglerev = AxBx; then " \"setenv fdtfile omap3-beagle.dtb; fi; " \"if test $beaglerev = Cx; then " \"setenv fdtfile omap3-beagle.dtb; fi; " \"if test $beaglerev = xMA; then " \"setenv fdtfile omap3-beagle-xm.dtb; fi; " \"if test $beaglerev = xMB; then " \"setenv fdtfile omap3-beagle-xm.dtb; fi; " \
There is no need for the "xMB" variant, as the gpio pins used for identification where never changed from the xMA when the newer silcon was used for the xMB (i guess if we look at the omap's es revision, we could figure out which are xMB's, but right now that isn't done in u-boot....)
"if test $beaglerev = xMC; then " \"setenv fdtfile omap3-beagle-xm.dtb; fi; " \"if test $fdtfile = undefined; then " \"echo WARNING: Could not determine device tree to use; fi; \0" \ "bootenv=uEnv.txt\0" \ "loadbootenv=fatload mmc ${mmcdev} ${loadaddr} ${bootenv}\0" \ "importbootenv=echo Importing environment from mmc ...; " \@@ -265,6 +280,7 @@ "rootfstype=${ramrootfstype}\0" \ "loadramdisk=load mmc ${bootpart} ${rdaddr} ${bootdir}/${ramdisk}\0" \ "loadimage=load mmc ${bootpart} ${loadaddr} ${bootdir}/${bootfile}\0" \
"loadfdt=load mmc ${bootpart} ${fdtaddr} ${bootdir}/${fdtfile}\0" \ "mmcboot=echo Booting from mmc ...; " \ "run mmcargs; " \ "bootm ${loadaddr}\0" \@@ -281,6 +297,7 @@ "userbutton_nonxm=gpio input 7;\0" /* "run userbutton" will return 1 (false) if pressed and 0 (true) if not */ #define CONFIG_BOOTCOMMAND \
"run findfdt; " \ "mmc dev ${mmcdev}; if mmc rescan; then " \ "if run userbutton; then " \ "setenv bootenv uEnv.txt;" \--
Regards,