[U-Boot] [PATCH v2 5/6] x86: ich-spi: Set the rx operation mode for ich 7

Jagannadha Sutradharudu Teki jagannadh.teki at gmail.com
Fri Dec 12 15:06:15 CET 2014


From: Bin Meng <bmeng.cn at gmail.com>

ICH 7 SPI controller only supports array read command (03h).
Fast array read command (0Bh) is not supported.

Signed-off-by: Bin Meng <bmeng.cn at gmail.com>
Acked-by: Simon Glass <sjg at chromium.org>
Tested-by: Simon Glass <sjg at chromium.org>
Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki at gmail.com>
---
 drivers/spi/ich.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/spi/ich.c b/drivers/spi/ich.c
index f5c6f3e..0ef8bd4 100644
--- a/drivers/spi/ich.c
+++ b/drivers/spi/ich.c
@@ -141,6 +141,10 @@ 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->slave.op_mode_rx = SPI_OPM_RX_AS;
+
 	return &ich->slave;
 }
 
-- 
1.9.1



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