cfi_flash: Add weak default for cfi_flash_bank_addr()

cfi_flash_bank_addr(int bank_nr) returns the base addresses of the
requested bank. Introducing this weak default enables boards to override
this functions with a board specific version when required.

This feature will be used in the lwmon5 board update, supporting runtime
detection of 2 board revisions with different flash layouts.

Signed-off-by: Stefan Roese <sr@denx.de>

diff --git a/drivers/mtd/cfi_flash.c b/drivers/mtd/cfi_flash.c
index b4a09dc1c2ca59fa4e67f9367fce8c2d8dfddd7e..49a2b5ea747f0aa8932e2c775f9e2a81d24da98b 100644 (file)
--- a/drivers/mtd/cfi_flash.c
+++ b/drivers/mtd/cfi_flash.c
@@ -85,6 +85,13 @@ flash_info_t flash_info[CFI_MAX_FLASH_BANKS];        /* FLASH chips info */
 #define CONFIG_SYS_FLASH_CFI_WIDTH     FLASH_CFI_8BIT
 #endif
 
+static phys_addr_t __cfi_flash_bank_addr(int i)
+{
+       return ((phys_addr_t [])CONFIG_SYS_FLASH_BANKS_LIST)[i];
+}
+phys_addr_t cfi_flash_bank_addr(int i)
+       __attribute__((weak, alias("__cfi_flash_bank_addr")));
+
 static void __flash_write8(u8 value, void *addr)
 {
        __raw_writeb(value, addr);
@@ -2021,14 +2028,12 @@ unsigned long flash_init (void)
        getenv_f("unlock", s, sizeof(s));
 #endif
 
-#define BANK_BASE(i)   (((phys_addr_t [CFI_MAX_FLASH_BANKS])CONFIG_SYS_FLASH_BANKS_LIST)[i])
-
        /* Init: no FLASHes known */
        for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; ++i) {
                flash_info[i].flash_id = FLASH_UNKNOWN;
 
-               if (!flash_detect_legacy (BANK_BASE(i), i))
-                       flash_get_size (BANK_BASE(i), i);
+               if (!flash_detect_legacy(cfi_flash_bank_addr(i), i))
+                       flash_get_size(cfi_flash_bank_addr(i), i);
                size += flash_info[i].size;
                if (flash_info[i].flash_id == FLASH_UNKNOWN) {
 #ifndef CONFIG_SYS_FLASH_QUIET_TEST