From e66587495d75ad82c34e9f04af03d3c5741644d3 Mon Sep 17 00:00:00 2001
From: Michael Burr <michael.burr@logicpd.com>
Date: Mon, 23 Sep 2013 22:35:45 +0000
Subject: i2c: Zynq: Support for TI PCA9548 bus multiplexer

(Interface is not quite the same as Phillips PCA9547.)

Signed-off-by: Michael Burr <michael.burr@logicpd.com>
Cc: Heiko Schocher <hs@denx.de>
Cc: Michal Simek <monstr@monstr.eu>
---
 drivers/i2c/i2c_core.c | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'drivers/i2c')

diff --git a/drivers/i2c/i2c_core.c b/drivers/i2c/i2c_core.c
index d1072e8..b263562 100644
--- a/drivers/i2c/i2c_core.c
+++ b/drivers/i2c/i2c_core.c
@@ -138,6 +138,11 @@ static int i2c_mux_set(struct i2c_adapter *adap, int mux_id, int chip,
 			return -1;
 		buf = (uint8_t)((channel & 0x07) | (1 << 3));
 		break;
+	case I2C_MUX_PCA9548_ID:
+		if (channel > 7)
+			return -1;
+		buf = (uint8_t)(0x01 << channel);
+		break;
 	default:
 		printf("%s: wrong mux id: %d\n", __func__, mux_id);
 		return -1;
-- 
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