This patch expands USB-DMAC channels for R-Car Gen2 SoCs. The SoCs
have 4 channels. If d{2,3}_{t,x}x_id are not set, this driver never
uses the expanded USB-DMAC channels.
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@xxxxxxxxxxx>
---
drivers/usb/renesas_usbhs/common.h | 4 ++++
drivers/usb/renesas_usbhs/fifo.c | 2 ++
drivers/usb/renesas_usbhs/fifo.h | 2 +-
include/linux/usb/renesas_usbhs.h | 4 ++++
4 files changed, 11 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/renesas_usbhs/common.h b/drivers/usb/renesas_usbhs/common.h
index c45667f..0427cdd 100644
--- a/drivers/usb/renesas_usbhs/common.h
+++ b/drivers/usb/renesas_usbhs/common.h
@@ -102,6 +102,10 @@ struct usbhs_priv;
#define DEVADD8 0x00E0
#define DEVADD9 0x00E2
#define DEVADDA 0x00E4
+#define D2FIFOSEL 0x00F0 /* for R-Car Gen2 */
+#define D2FIFOCTR 0x00F2 /* for R-Car Gen2 */
+#define D3FIFOSEL 0x00F4 /* for R-Car Gen2 */
+#define D3FIFOCTR 0x00F6 /* for R-Car Gen2 */
/* SYSCFG */
#define SCKE (1 << 10) /* USB Module Clock Enable */
diff --git a/drivers/usb/renesas_usbhs/fifo.c b/drivers/usb/renesas_usbhs/fifo.c
index bc9a050..f46271c 100644
--- a/drivers/usb/renesas_usbhs/fifo.c
+++ b/drivers/usb/renesas_usbhs/fifo.c
@@ -1234,6 +1234,8 @@ int usbhs_fifo_probe(struct usbhs_priv *priv)
/* DFIFO */
USBHS_DFIFO_INIT(priv, fifo, 0);
USBHS_DFIFO_INIT(priv, fifo, 1);
+ USBHS_DFIFO_INIT_NO_PORT(priv, fifo, 2);
+ USBHS_DFIFO_INIT_NO_PORT(priv, fifo, 3);
return 0;
}
diff --git a/drivers/usb/renesas_usbhs/fifo.h b/drivers/usb/renesas_usbhs/fifo.h
index 899729a..f07037c1 100644
--- a/drivers/usb/renesas_usbhs/fifo.h
+++ b/drivers/usb/renesas_usbhs/fifo.h
@@ -38,7 +38,7 @@ struct usbhs_fifo {
struct sh_dmae_slave rx_slave;
};
-#define USBHS_MAX_NUM_DFIFO 2
+#define USBHS_MAX_NUM_DFIFO 4
struct usbhs_fifo_info {
struct usbhs_fifo cfifo;
struct usbhs_fifo dfifo[USBHS_MAX_NUM_DFIFO];
diff --git a/include/linux/usb/renesas_usbhs.h b/include/linux/usb/renesas_usbhs.h
index d5952bb..9fd9e48 100644
--- a/include/linux/usb/renesas_usbhs.h
+++ b/include/linux/usb/renesas_usbhs.h
@@ -145,6 +145,10 @@ struct renesas_usbhs_driver_param {
int d0_rx_id;
int d1_tx_id;
int d1_rx_id;
+ int d2_tx_id;
+ int d2_rx_id;
+ int d3_tx_id;
+ int d3_rx_id;
/*
* option:
--
1.7.9.5
--
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