Fix some typos, add information about setup_omap_atag, remove old suff about ONENAND_SUPPORT and update guide for UBIFS.
Signed-off-by: Pali Rohár pali@kernel.org --- doc/README.nokia_rx51 | 32 +++++++++++++++----------------- 1 file changed, 15 insertions(+), 17 deletions(-)
diff --git a/doc/README.nokia_rx51 b/doc/README.nokia_rx51 index 586ed7c1cc..33c275b416 100644 --- a/doc/README.nokia_rx51 +++ b/doc/README.nokia_rx51 @@ -19,7 +19,7 @@ stored ATAGs (see boot order). There is support for hardware watchdog. Hardware watchdog is started by NOLO so u-boot must kick watchdog to prevent reboot device (but not very often, max every 2 seconds). There is also support for framebuffer display -output with ANSI espace codes and the N900 HW keyboard input. USB tty works +output with ANSI escape codes and the N900 HW keyboard input. USB tty works but is disabled because it prevents the current Maemo kernel from booting.
When U-Boot is starting it enable IBE bit in Auxiliary Control Register, @@ -36,7 +36,7 @@ Boot from SD or eMMC in this order:
* 1. * 1.1 find boot.scr on first fat partition - * 1.2 find uImage on first fat parition + * 1.2 find uImage on first fat partition * 1.3 same order for 2. - 4. fat partition * 2. same as 1. but for ext2/3 partition * 3. same as 1. but for ext4 partition @@ -62,21 +62,26 @@ Available additional commands/variables: * run trymmcscriptboot - Try to load and boot script ${mmcscriptfile} * run trymmckernboot - Try to load and boot kernel image ${mmckernfile} * run trymmckerninitrdboot - Try to load and boot kernel image ${mmckernfile} - with initrd image ${mmcinitrdfile} + with initrd image ${mmcinitrdfile}
Additional variables for loading files from mmc:
* mmc ${mmcnum} (0 - external, 1 - internal) * partition number ${mmcpart} (1 - 4) - * parition type ${mmctype} (fat, ext2) + * parition type ${mmctype} (fat, ext2, ext4)
-Additional varuables for booting kernel: +Additional variables for booting kernel:
* setup_omap_atag - Add OMAP table into atags structure (needs maemo kernel) * setup_console_atag - Enable serial console in OMAP table * setup_boot_reason_atag - Change boot reason in OMAP table * setup_boot_mode_atag - Change boot mode in OMAP table
+ Variable setup_omap_atag is automatically set when booting attached kernel. + When variable setup_omap_atag is set, variable setup_console_atag is unset + and u-boot standard output is set to serial then setup_console_atag is + automatically set to 1. So output from Maemo kernel would go to serial port. + USB TTY:
Maemo kernel 2.6.28 will crash if u-boot enable usb tty. So USB TTY is disabled. @@ -85,20 +90,13 @@ USB TTY: #define CONFIG_USB_TTY
-ONENAND support: - - ONENAND support is disabled because not working yet and cause linux kernel to - crash or no access to mtd. For enabling ONENAND support add this line at begin - of file include/configs/nokia_rx51.h - - #define ONENAND_SUPPORT - - UBIFS support:
UBIFS support is disabled, because U-Boot image is too big and cannot be flashed with attached zImage to RX-51 kernel nand area. For enabling UBIFS - support first enable ONENAND support and then add this line at begin of file - include/configs/nokia_rx51.h + support add following lines into file configs/nokia_rx51_defconfig
- #define UBIFS_SUPPORT + CONFIG_CMD_UBI=y + CONFIG_CMD_UBIFS=y + CONFIG_MTD_UBI_FASTMAP=y + CONFIG_MTD_UBI_FASTMAP_AUTOCONVERT=1