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km/common: add support for second flash

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Add support for a second flash.
By default, a single flash chip is set up:
- called 'boot'
- mtd name for ubi 'ubi0'
MTDIDS and MTDPARTS may be overwritten to add a second flash.
The 'ubiattach' command is featured in two versions:
- if CONFIG_KM_UBI_PARTITION_NAME_APP is not defined:
  this is the version as up to now
- if CONFIG_KM_UBI_PARTITION_NAME_APP is defined:
  a check on 'actual_bank' will be done to determine the flash to boot
  from.

Use CONFIG_KM_UBI_PARTITION_NAME_BOOT and
CONFIG_KM_UBI_PARTITION_NAME_APP to define where to put the bootloader
and the applications.

Example:
In the board config do:
... snip ...

       "boot:"                                                 \
               "768k(u-boot),"                                 \
               "128k(env),"                                    \
               "128k(envred),"                                 \
               "-(" CONFIG_KM_UBI_PARTITION_NAME_BOOT ");"     \
       "app:"                                                  \
               "-(" CONFIG_KM_UBI_PARTITION_NAME_APP ");"

... snap ...

You may also need to enable the second flash:
... snip ...
/* additional featured for COGE5 */
... snap ...

Signed-off-by: Andreas Huber <andreas.huber@keymile.com>
cc: Kim Phillips <kim.phillips@freescale.com>
cc: Valentin Longchamp <valentin.longchamp@keymile.com>
cc: Gerlando Falauto <gerlando.falauto@keymile.com>
Signed-off-by: Holger Brunck <holger.brunck@keymile.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
This commit is contained in:
Andreas Huber 2012-05-04 10:30:16 +02:00 committed by Kim Phillips
parent 7ba1c870da
commit cf73639d32
4 changed files with 43 additions and 19 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

34
include/configs/km/keymile-common.h
View File

@ -126,12 +126,29 @@
"netdev=eth0\0"
#endif
#ifndef CONFIG_KM_UBI_PARTITION_NAME
#define CONFIG_KM_UBI_PARTITION_NAME "ubi0"
#endif
#ifndef CONFIG_KM_UBI_LINUX_MTD_NAME
#define CONFIG_KM_UBI_LINUX_MTD_NAME "ubi0"
#endif
#ifndef CONFIG_KM_UBI_PARTITION_NAME_BOOT
#define CONFIG_KM_UBI_PARTITION_NAME_BOOT "ubi0"
#endif /* CONFIG_KM_UBI_PARTITION_NAME_BOOT */
#ifndef CONFIG_KM_UBI_PARTITION_NAME_APP
/* one flash chip only called boot */
/* boot: CONFIG_KM_UBI_PARTITION_NAME_BOOT */
# define CONFIG_KM_UBI_LINUX_MTD \
"ubi.mtd=" CONFIG_KM_UBI_PARTITION_NAME_BOOT
# define CONFIG_KM_DEV_ENV_FLASH_BOOT_UBI \
"ubiattach=ubi part " CONFIG_KM_UBI_PARTITION_NAME_BOOT "\0"
#else /* CONFIG_KM_UBI_PARTITION_NAME_APP */
/* two flash chips called boot and app */
/* boot: CONFIG_KM_UBI_PARTITION_NAME_BOOT */
/* app: CONFIG_KM_UBI_PARTITION_NAME_APP */
# define CONFIG_KM_UBI_LINUX_MTD \
"ubi.mtd=" CONFIG_KM_UBI_PARTITION_NAME_BOOT " " \
"ubi.mtd=" CONFIG_KM_UBI_PARTITION_NAME_APP
# define CONFIG_KM_DEV_ENV_FLASH_BOOT_UBI \
"ubiattach=if test ${boot_bank} -eq 0; then; " \
"ubi part " CONFIG_KM_UBI_PARTITION_NAME_BOOT "; else; " \
"ubi part " CONFIG_KM_UBI_PARTITION_NAME_APP "; fi\0"
#endif /* CONFIG_KM_UBI_PARTITION_NAME_APP */
#define xstr(s) str(s)
#define str(s) #s
@ -173,7 +190,7 @@
" console=" CONFIG_KM_CONSOLE_TTY ",${baudrate}" \
" mem=${kernelmem} init=${init}" \
" phram.phram=phvar,${varaddr}," xstr(CONFIG_KM_PHRAM) \
" ubi.mtd=" CONFIG_KM_UBI_LINUX_MTD_NAME " " \
" " CONFIG_KM_UBI_LINUX_MTD " " \
CONFIG_KM_DEF_BOOT_ARGS_CPU \
"\0" \
"addpanic=" \
@ -199,10 +216,9 @@
#define CONFIG_KM_DEF_ENV_FLASH_BOOT \
"cramfsaddr=" xstr(CONFIG_KM_CRAMFS_ADDR) "\0" \
"cramfsloadkernel=cramfsload ${load_addr_r} uImage\0" \
"ubiattach=ubi part " CONFIG_KM_UBI_PARTITION_NAME "\0" \
"ubicopy=ubi read "xstr(CONFIG_KM_CRAMFS_ADDR) \
" bootfs${boot_bank}\0" \
""
CONFIG_KM_DEV_ENV_FLASH_BOOT_UBI
/*
* constants

2
include/configs/km/km82xx-common.h
View File

@ -73,7 +73,7 @@
"128k(env)," \
"128k(envred)," \
"3072k(free)," \
"-(" CONFIG_KM_UBI_PARTITION_NAME ")"
"-(" CONFIG_KM_UBI_PARTITION_NAME_BOOT ")"
/*
* Default environment settings

11
include/configs/km/km83xx-common.h
View File

@ -15,13 +15,18 @@
#include "keymile-common.h"
#include "km-powerpc.h"
#define MTDIDS_DEFAULT "nor0=boot"
#define MTDPARTS_DEFAULT "mtdparts=" \
#ifndef MTDIDS_DEFAULT
# define MTDIDS_DEFAULT "nor0=boot"
#endif /* MTDIDS_DEFAULT */
#ifndef MTDPARTS_DEFAULT
# define MTDPARTS_DEFAULT "mtdparts=" \
"boot:" \
"768k(u-boot)," \
"128k(env)," \
"128k(envred)," \
"-(" CONFIG_KM_UBI_PARTITION_NAME ")"
"-(" CONFIG_KM_UBI_PARTITION_NAME_BOOT ");"
#endif /* MTDPARTS_DEFAULT */
#define CONFIG_MISC_INIT_R
/*

15
include/configs/km/km_arm.h
View File

@ -229,11 +229,15 @@ int get_scl(void);
#define FLASH_GPIO_PIN 0x00010000
#define MTDIDS_DEFAULT "nand0=orion_nand"
/* test-only: partitioning needs some tuning, this is just for tests */
#define MTDPARTS_DEFAULT "mtdparts=" \
"orion_nand:" \
"-(" CONFIG_KM_UBI_PARTITION_NAME ")"
#ifndef MTDIDS_DEFAULT
# define MTDIDS_DEFAULT "nand0=orion_nand"
#endif /* MTDIDS_DEFAULT */
#ifndef MTDPARTS_DEFAULT
# define MTDPARTS_DEFAULT "mtdparts=" \
"orion_nand:" \
"-(" CONFIG_KM_UBI_PARTITION_NAME_BOOT ");"
#endif /* MTDPARTS_DEFAULT */
#define CONFIG_KM_DEF_ENV_UPDATE \
"update=" \
@ -257,7 +261,6 @@ int get_scl(void);
""
#if defined(CONFIG_SYS_NO_FLASH)
#define CONFIG_KM_UBI_PARTITION_NAME "ubi0"
#undef CONFIG_FLASH_CFI_MTD
#undef CONFIG_JFFS2_CMDLINE
#endif