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hw/nand.c: Fix nand erase operation 

Usually, nand erase operation has only 2 or 3 address cycles.
We need to mask s->addr to zero unset stale high-order bytes in the nand address
before using it as the erase address.

This fixes the NAND erase operation in Linux.

[PC: Generalised to work for any number of address cycles rather than just 3]

Signed-off-by: Wendy Liang <jliang@xilinx.com>
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id: 1364967188-26711-1-git-send-email-peter.crosthwaite@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Wendy Liang 2013-04-03 15:33:08 +10:00 committed by Peter Maydell
parent 1db8b5efe0
commit 32aea752f4
1 changed files with 1 additions and 0 deletions
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hw/nand.c
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@ -297,6 +297,7 @@ static void nand_command(NANDFlashState *s)
break; break;
case NAND_CMD_BLOCKERASE2: case NAND_CMD_BLOCKERASE2:
s->addr &= (1ull << s->addrlen * 8) - 1;
if (nand_flash_ids[s->chip_id].options & NAND_SAMSUNG_LP) if (nand_flash_ids[s->chip_id].options & NAND_SAMSUNG_LP)
s->addr <<= 16; s->addr <<= 16;
else else