From: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Date: Tue, 14 May 2013 11:15:25 +0000 (-0300)
Subject: mtd: nand: pxa3xx: Add support for Read parameter page command
X-Git-Tag: upstream/snapshot3+hdmi~4372^2~134
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=ce0268f650ad26e103d82ce5a58379737adc2ab9;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git

mtd: nand: pxa3xx: Add support for Read parameter page command

This command is required to identify ONFI-compliant devices.

Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Tested-by: Nikita Kiryanov <nikita@compulab.co.il>
Acked-by: Igor Grinberg <grinberg@compulab.co.il>
Reviewed-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
---

diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c
index 36780e2..d63d378 100644
--- a/drivers/mtd/nand/pxa3xx_nand.c
+++ b/drivers/mtd/nand/pxa3xx_nand.c
@@ -590,6 +590,16 @@ static int prepare_command_pool(struct pxa3xx_nand_info *info, int command,
 				| addr_cycle;
 		break;
 
+	case NAND_CMD_PARAM:
+		cmd = NAND_CMD_PARAM;
+		info->buf_count = 256;
+		info->ndcb0 |= NDCB0_CMD_TYPE(0)
+				| NDCB0_ADDR_CYC(1)
+				| cmd;
+		info->ndcb1 = (column & 0xFF);
+		info->data_size = 256;
+		break;
+
 	case NAND_CMD_READID:
 		cmd = host->cmdset->read_id;
 		info->buf_count = host->read_id_bytes;