[U-Boot] [PATCH v6 4/6] mx53loco: Add support to dynamically choose between fdt use or not

Otavio Salvador
2013-01-10T19:45:07Z

The CONFIG_SYS_CBSIZE has been change to 512 to avoid runtime errors as:

,---[ Runtime error ]
| Hit any key to stop autoboot: 0
| MX53LOCO U-Boot > pri netboot
| netboot=echo Booting from net ...; run netargs; if test ...
| prefetch abort
| pc : [<20747368>] lr : [<20747365>]
| sp : af566e20 ip : 00000000 fp : 00000000
| r10: 00000002 r9 : af6dfc28 r8 : af566f58
| r7 : af6dfc10 r6 : 00000001 r5 : 00000002 r4 : 74206669
| r3 : 00000000 r2 : 00000060 r1 : 00000020 r0 : 0000018e
| Flags: nZCv IRQs off FIQs off Mode SVC_32
| Resetting CPU ...
|
| resetting ...
`---

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
---
Changes in v6:
- Fix mmcargs set
- Fix netboot fdt
- Raise SYS_CBSIZE to 512 to fix a runtime error

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/mx53loco.h | 44 ++++++++++++++++++++++++++++++++++++++++----
1 file changed, 40 insertions(+), 4 deletions(-)

diff --git a/include/configs/mx53loco.h b/include/configs/mx53loco.h
index 996396b..a4b610f 100644
--- a/include/configs/mx53loco.h
+++ b/include/configs/mx53loco.h
@@ -119,24 +119,60 @@
#define CONFIG_EXTRA_ENV_SETTINGS \
"script=boot.scr\0" \
"uimage=uImage\0" \
+ "fdt_file=imx53-qsb.dtb\0" \
+ "fdt_addr=0x71000000\0" \
+ "boot_fdt=try\0" \
+ "ip_dyn=yes\0" \
"mmcdev=0\0" \
"mmcpart=2\0" \
"mmcroot=/dev/mmcblk0p3 rw rootwait\0" \
- "mmcargs=setenv bootargs console=ttymxc0,${baudrate} root=${mmcroot} " \
+ "mmcargs=setenv bootargs console=ttymxc0,${baudrate} root=${mmcroot}\0" \
"loadbootscript=" \
"fatload mmc ${mmcdev}:${mmcpart} ${loadaddr} ${script};\0" \
"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" \
+ "if test ${boot_fdt} = yes || test ${boot_fdt} = try; then " \
+ "if run loadfdt; then " \
+ "bootm ${loadaddr} - ${fdt_addr}; " \
+ "else " \
+ "if test ${boot_fdt} = try; then " \
+ "bootm; " \
+ "else " \
+ "echo WARN: Cannot load the DT; " \
+ "fi; " \
+ "fi; " \
+ "else " \
+ "bootm; " \
+ "fi;\0" \
"netargs=setenv bootargs console=ttymxc0,${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 || test ${boot_fdt} = try; then " \
+ "if ${get_cmd} ${fdt_addr} ${fdt_file}; then " \
+ "bootm ${loadaddr} - ${fdt_addr}; " \
+ "else " \
+ "if test ${boot_fdt} = try; then " \
+ "bootm; " \
+ "else " \
+ "echo ERROR: Cannot load the DT; " \
+ "exit; " \
+ "fi; " \
+ "fi; " \
+ "else " \
+ "bootm; " \
+ "fi;\0"

#define CONFIG_BOOTCOMMAND \
"mmc dev ${mmcdev}; if mmc rescan; then " \
@@ -157,7 +193,7 @@
#define CONFIG_SYS_HUSH_PARSER /* use "hush" command parser */
#define CONFIG_SYS_PROMPT "MX53LOCO U-Boot > "
#define CONFIG_AUTO_COMPLETE
-#define CONFIG_SYS_CBSIZE 256 /* Console I/O Buffer Size */
+#define CONFIG_SYS_CBSIZE 512 /* Console I/O Buffer Size */

/* Print Buffer Size */
#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE + sizeof(CONFIG_SYS_PROMPT) + 16)
--
1.7.10.4