From a65f51b97886f0b1d911eb1ea951fce9efd1700f Mon Sep 17 00:00:00 2001
From: huang lin <hl@rock-chips.com>
Date: Tue, 17 Nov 2015 14:20:22 +0800
Subject: mmc: dw_mmc: support fifo mode in dwc mmc driver

some soc(rk3036 etc) use dw_mmc but do not have internal dma,
so we implement fifo mode to read and write data.

Signed-off-by: Lin Huang <hl@rock-chips.com>
Acked-by: Simon Glass <sjg@chromium.org>
---
 include/dwmmc.h | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'include/dwmmc.h')

diff --git a/include/dwmmc.h b/include/dwmmc.h
index 25cf42c606..05b0817fe1 100644
--- a/include/dwmmc.h
+++ b/include/dwmmc.h
@@ -105,6 +105,8 @@
 
 /* Status Register */
 #define DWMCI_BUSY		(1 << 9)
+#define DWMCI_FIFO_MASK		0x1ff
+#define DWMCI_FIFO_SHIFT	17
 
 /* FIFOTH Register */
 #define MSIZE(x)		((x) << 28)
@@ -180,6 +182,9 @@ struct dwmci_host {
 	unsigned int (*get_mmc_clk)(struct dwmci_host *host, uint freq);
 
 	struct mmc_config cfg;
+
+	/* use fifo mode to read and write data */
+	bool fifo_mode;
 };
 
 struct dwmci_idmac {
-- 
cgit v1.2.1