summaryrefslogtreecommitdiff
path: root/include/mtd/cfi_flash.h
diff options
context:
space:
mode:
authorStefan Roese <sr@denx.de>2010-08-31 10:00:10 +0200
committerStefan Roese <sr@denx.de>2010-09-20 15:08:51 +0200
commitca5def3f30860a97cc76453eb846fffbde997035 (patch)
tree132a5e8730901525b6d4eea0cda055a703eb5d84 /include/mtd/cfi_flash.h
parentb00e19cc6b99fdd0a2b2760f225465d0998ef88f (diff)
downloadu-boot-imx-ca5def3f30860a97cc76453eb846fffbde997035.zip
u-boot-imx-ca5def3f30860a97cc76453eb846fffbde997035.tar.gz
u-boot-imx-ca5def3f30860a97cc76453eb846fffbde997035.tar.bz2
cfi_flash: Simplify dynamic flash bank number detection
This patch simplifies the use of CONFIG_SYS_MAX_FLASH_BANKS_DETECT. By moving these optional variables and defines into the common code, board specific code is minimized. Currently only the following board use this feature: APC405, IDS8247, TQM834x And IDS8247 doesn't seem to really need this feature, since its not updating the bank number variable at all. So this patch removes the definition of CONFIG_SYS_MAX_FLASH_BANKS_DETECT from this board port. This new framework will be used by the upcoming lwmon5 update as well. Signed-off-by: Stefan Roese <sr@denx.de> Acked-by: Heiko Schocher <hs@denx.de> Cc: Matthias Fuchs <matthias.fuchs@esd.eu>
Diffstat (limited to 'include/mtd/cfi_flash.h')
-rw-r--r--include/mtd/cfi_flash.h18
1 files changed, 18 insertions, 0 deletions
diff --git a/include/mtd/cfi_flash.h b/include/mtd/cfi_flash.h
index 2aa6911..2ff00f2 100644
--- a/include/mtd/cfi_flash.h
+++ b/include/mtd/cfi_flash.h
@@ -151,6 +151,24 @@ struct cfi_pri_hdr {
u8 minor_version;
} __attribute__((packed));
+#ifndef CONFIG_SYS_FLASH_BANKS_LIST
+#define CONFIG_SYS_FLASH_BANKS_LIST { CONFIG_SYS_FLASH_BASE }
+#endif
+
+/*
+ * CFI_MAX_FLASH_BANKS only used for flash_info struct declaration.
+ *
+ * Use CONFIG_SYS_MAX_FLASH_BANKS_DETECT if defined
+ */
+#if defined(CONFIG_SYS_MAX_FLASH_BANKS_DETECT)
+#define CONFIG_SYS_MAX_FLASH_BANKS (cfi_flash_num_flash_banks)
+#define CFI_MAX_FLASH_BANKS CONFIG_SYS_MAX_FLASH_BANKS_DETECT
+/* board code can update this variable before CFI detection */
+extern int cfi_flash_num_flash_banks;
+#else
+#define CFI_MAX_FLASH_BANKS CONFIG_SYS_MAX_FLASH_BANKS
+#endif
+
void flash_write_cmd(flash_info_t * info, flash_sect_t sect,
uint offset, u32 cmd);