Patchwork [U-Boot,v6,3/6] mx28evk: Add support to dynamically choose between fdt use or not

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Submitter Otavio Salvador
Date Jan. 10, 2013, 7:45 p.m.
Message ID <1357847109-3686-4-git-send-email-otavio@ossystems.com.br>
Download mbox | patch
Permalink /patch/211135/
State Awaiting Upstream
Delegated to: Stefano Babic
Headers show

Comments

Otavio Salvador - Jan. 10, 2013, 7:45 p.m.
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
---
Changes in v6: None
Changes in v5:
- Change subject
- Reword the warning

Changes in v4:
- Use a warning, instead of error when failing to fetch fdt
- Drop exit use
- Fix netboot
- Use fdt instead of ftd

Changes in v3:
- Add loadfdt
- Use loadfdt
- Call exit to abort script

Changes in v2:
- Allow use of dynamic/static ip
- Allow force use, or not, of fdt
- Change 'auto' to 'try'

 include/configs/mx28evk.h |   41 ++++++++++++++++++++++++++++++++++++++---
 1 file changed, 38 insertions(+), 3 deletions(-)

Patch

diff --git a/include/configs/mx28evk.h b/include/configs/mx28evk.h
index a13478d..dd0ef21 100644
--- a/include/configs/mx28evk.h
+++ b/include/configs/mx28evk.h
@@ -290,6 +290,10 @@ 
 	"uimage=uImage\0" \
 	"console_fsl=ttyAM0\0" \
 	"console_mainline=ttyAMA0\0" \
+	"fdt_file=imx28-evk.dtb\0" \
+	"fdt_addr=0x41000000\0" \
+	"boot_fdt=try\0" \
+	"ip_dyn=yes\0" \
 	"mmcdev=0\0" \
 	"mmcpart=2\0" \
 	"mmcroot=/dev/mmcblk0p3 rw rootwait\0" \
@@ -300,15 +304,46 @@ 
 	"bootscript=echo Running bootscript from mmc ...; "	\
 		"source\0" \
 	"loaduimage=fatload mmc ${mmcdev}:${mmcpart} ${loadaddr} ${uimage}\0" \
+	"loadfdt=fatload mmc ${mmcdev}:${mmcpart} ${fdt_addr} ${fdt_file}\0" \
 	"mmcboot=echo Booting from mmc ...; " \
-		"run mmcargs; "	\
-		"bootm\0" \
+		"run mmcargs; " \
+		"if test ${boot_fdt} = yes || test ${boot_fdt} = try; then " \
+			"if run loadfdt; then " \
+				"bootm ${loadaddr} - ${fdt_addr}; " \
+			"else " \
+				"if test ${boot_fdt} = try; then " \
+					"bootm; " \
+				"else " \
+					"echo WARN: Cannot load the DT; " \
+				"fi; " \
+			"fi; " \
+		"else " \
+			"bootm; " \
+		"fi;\0" \
 	"netargs=setenv bootargs console=${console_mainline},${baudrate} " \
 		"root=/dev/nfs " \
 		"ip=dhcp nfsroot=${serverip}:${nfsroot},v3,tcp\0" \
 	"netboot=echo Booting from net ...; " \
 		"run netargs; "	\
-		"dhcp ${uimage}; bootm\0"
+		"if test ${ip_dyn} = yes; then " \
+			"setenv get_cmd dhcp; " \
+		"else " \
+			"setenv get_cmd tftp; " \
+		"fi; " \
+		"${get_cmd} ${uimage}; " \
+		"if test ${boot_fdt} = yes; then " \
+			"if ${get_cmd} ${fdt_addr} ${fdt_file}; then " \
+				"bootm ${loadaddr} - ${fdt_addr}; " \
+			"else " \
+				"if test ${boot_fdt} = try; then " \
+					"bootm; " \
+				"else " \
+					"echo WARN: Cannot load the DT; " \
+				"fi;" \
+			"fi; " \
+		"else " \
+			"bootm; " \
+		"fi;\0"
 
 #define CONFIG_BOOTCOMMAND \
 	"mmc dev ${mmcdev}; if mmc rescan; then " \