From 996467172e29e28247d8e9a35ada43a1376b5883 Mon Sep 17 00:00:00 2001
From: Bin Meng <bmeng.cn@gmail.com>
Date: Fri, 12 Dec 2014 19:36:16 +0530
Subject: [PATCH] x86: ich-spi: Set the tx operation mode for ich 7
ICH 7 SPI controller only supports byte program (02h) for SST flash.
Word program (ADh) is not supported.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>
---
drivers/spi/ich.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/drivers/spi/ich.c b/drivers/spi/ich.c
index b356411c36..16730ec33f 100644
--- a/drivers/spi/ich.c
+++ b/drivers/spi/ich.c
@@ -141,9 +141,14 @@ struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
ich->slave.max_write_size = ctlr.databytes;
ich->speed = max_hz;
- /* ICH 7 SPI controller only supports array read command */
- if (ctlr.ich_version == 7)
+ /*
+ * ICH 7 SPI controller only supports array read command
+ * and byte program command for SST flash
+ */
+ if (ctlr.ich_version == 7) {
ich->slave.op_mode_rx = SPI_OPM_RX_AS;
+ ich->slave.op_mode_tx = SPI_OPM_TX_BP;
+ }
return &ich->slave;
}
--
2.39.5