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

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Gitweb:     http://git.infradead.org/?p=mtd-2.6.git;a=commit;h=ce0268f650ad26e103d82ce5a58379737adc2ab9
Commit:     ce0268f650ad26e103d82ce5a58379737adc2ab9
Parent:     d14231f1985f31441777a2dbda055dc8499f6c93
Author:     Ezequiel Garcia <ezequiel.garcia at free-electrons.com>
AuthorDate: Tue May 14 08:15:25 2013 -0300
Committer:  David Woodhouse <David.Woodhouse at intel.com>
CommitDate: Mon Aug 5 20:58:23 2013 +0100

    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 at free-electrons.com>
    Tested-by: Nikita Kiryanov <nikita at compulab.co.il>
    Acked-by: Igor Grinberg <grinberg at compulab.co.il>
    Reviewed-by: Haojian Zhuang <haojian.zhuang at gmail.com>
    Signed-off-by: Artem Bityutskiy <artem.bityutskiy at linux.intel.com>
    Signed-off-by: David Woodhouse <David.Woodhouse at intel.com>
---
 drivers/mtd/nand/pxa3xx_nand.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

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;