altera_qspi: fix erase and write error code

Fix erase and write error code, which should be "protected".

From the "Embedded Peripherals IP User Guide" of Altera,

The "Illegal write" flag indicates that a write instruction is
targeting a protected sector on the flash memory. This bit is
set to indicate that the IP has cancelled a write instruction.

The "Illegal erase" flag indicates that an erase instruction has
been set to a protected sector on the flash memory. This bit is
set to indicate that the IP has cancelled the erase instruction.

Signed-off-by: Thomas Chou <thomas@wytron.com.tw>
Acked-by: Chin Liang See <clsee@altera.com>
Reviewed-by: Marek Vasut <marex@denx.de>

diff --git a/drivers/mtd/altera_qspi.c b/drivers/mtd/altera_qspi.c
index 61a6a5ed9d4b06cbc143ceb7f95687dd711170b3..617bf5d72de36b8f8353c8791e3d16ce9da1b917 100644 (file)
--- a/drivers/mtd/altera_qspi.c
+++ b/drivers/mtd/altera_qspi.c
@@ -85,7 +85,7 @@ int flash_erase(flash_info_t *info, int s_first, int s_last)
        instr.len = mtd->erasesize * (s_last + 1 - s_first);
        ret = mtd_erase(mtd, &instr);
        if (ret)
-               return ERR_NOT_ERASED;
+               return ERR_PROTECTED;
 
        return 0;
 }
@@ -102,7 +102,7 @@ int write_buff(flash_info_t *info, uchar *src, ulong addr, ulong cnt)
 
        ret = mtd_write(mtd, to, cnt, &retlen, src);
        if (ret)
-               return ERR_NOT_ERASED;
+               return ERR_PROTECTED;
 
        return 0;
 }