[U-Boot] [PATCH 4/5] net: altera_tse: add priv ops to prepare msgdma support
Thomas Chou
thomas at wytron.com.tw
Mon Nov 9 07:37:54 CET 2015
Add priv ops to prepare msgdma support. These ops are dma type
specific.
Signed-off-by: Thomas Chou <thomas at wytron.com.tw>
---
drivers/net/altera_tse.c | 86 ++++++++++++++++++++++++++++++++++++------------
drivers/net/altera_tse.h | 20 ++++++++---
2 files changed, 81 insertions(+), 25 deletions(-)
diff --git a/drivers/net/altera_tse.c b/drivers/net/altera_tse.c
index 8ec0beb..3848530 100644
--- a/drivers/net/altera_tse.c
+++ b/drivers/net/altera_tse.c
@@ -152,13 +152,11 @@ static void tse_adjust_link(struct altera_tse_priv *priv,
writel(refvar, &mac_dev->command_config);
}
-static int altera_tse_send(struct udevice *dev, void *packet, int length)
+static int altera_tse_send_sgdma(struct udevice *dev, void *packet, int length)
{
struct altera_tse_priv *priv = dev_get_priv(dev);
struct alt_sgdma_descriptor *tx_desc = priv->tx_desc;
- unsigned long tx_buf = (unsigned long)packet;
- flush_dcache_range(tx_buf, tx_buf + length);
alt_sgdma_construct_descriptor(
tx_desc,
tx_desc + 1,
@@ -178,7 +176,8 @@ static int altera_tse_send(struct udevice *dev, void *packet, int length)
return tx_desc->actual_bytes_transferred;
}
-static int altera_tse_recv(struct udevice *dev, int flags, uchar **packetp)
+static int altera_tse_recv_sgdma(struct udevice *dev, int flags,
+ uchar **packetp)
{
struct altera_tse_priv *priv = dev_get_priv(dev);
struct alt_sgdma_descriptor *rx_desc = priv->rx_desc;
@@ -197,14 +196,12 @@ static int altera_tse_recv(struct udevice *dev, int flags, uchar **packetp)
return -EAGAIN;
}
-static int altera_tse_free_pkt(struct udevice *dev, uchar *packet,
- int length)
+static int altera_tse_free_pkt_sgdma(struct udevice *dev, uchar *packet,
+ int length)
{
struct altera_tse_priv *priv = dev_get_priv(dev);
struct alt_sgdma_descriptor *rx_desc = priv->rx_desc;
- unsigned long rx_buf = (unsigned long)priv->rx_buf;
- invalidate_dcache_range(rx_buf, rx_buf + PKTSIZE_ALIGN);
alt_sgdma_construct_descriptor(
rx_desc,
rx_desc + 1,
@@ -243,7 +240,7 @@ static void altera_tse_stop_mac(struct altera_tse_priv *priv)
}
}
-static void altera_tse_stop(struct udevice *dev)
+static void altera_tse_stop_sgdma(struct udevice *dev)
{
struct altera_tse_priv *priv = dev_get_priv(dev);
struct alt_sgdma_registers *rx_sgdma = priv->sgdma_rx;
@@ -264,8 +261,6 @@ static void altera_tse_stop(struct udevice *dev)
if (ret == -ETIMEDOUT)
writel(ALT_SGDMA_CONTROL_SOFTWARERESET_MSK,
&tx_sgdma->control);
-
- altera_tse_stop_mac(priv);
}
static int tse_mdio_read(struct mii_dev *bus, int addr, int devad, int reg)
@@ -364,6 +359,42 @@ static int altera_tse_write_hwaddr(struct udevice *dev)
return 0;
}
+static int altera_tse_send(struct udevice *dev, void *packet, int length)
+{
+ struct altera_tse_priv *priv = dev_get_priv(dev);
+ unsigned long tx_buf = (unsigned long)packet;
+
+ flush_dcache_range(tx_buf, tx_buf + length);
+
+ return priv->ops->send(dev, packet, length);
+}
+
+static int altera_tse_recv(struct udevice *dev, int flags, uchar **packetp)
+{
+ struct altera_tse_priv *priv = dev_get_priv(dev);
+
+ return priv->ops->recv(dev, flags, packetp);
+}
+
+static int altera_tse_free_pkt(struct udevice *dev, uchar *packet,
+ int length)
+{
+ struct altera_tse_priv *priv = dev_get_priv(dev);
+ unsigned long rx_buf = (unsigned long)priv->rx_buf;
+
+ invalidate_dcache_range(rx_buf, rx_buf + PKTSIZE_ALIGN);
+
+ return priv->ops->free_pkt(dev, packet, length);
+}
+
+static void altera_tse_stop(struct udevice *dev)
+{
+ struct altera_tse_priv *priv = dev_get_priv(dev);
+
+ priv->ops->stop(dev);
+ altera_tse_stop_mac(priv);
+}
+
static int altera_tse_start(struct udevice *dev)
{
struct altera_tse_priv *priv = dev_get_priv(dev);
@@ -411,6 +442,13 @@ static int altera_tse_start(struct udevice *dev)
return 0;
}
+static const struct tse_ops tse_sgdma_ops = {
+ .send = altera_tse_send_sgdma,
+ .recv = altera_tse_recv_sgdma,
+ .free_pkt = altera_tse_free_pkt_sgdma,
+ .stop = altera_tse_stop_sgdma,
+};
+
static int altera_tse_probe(struct udevice *dev)
{
struct eth_pdata *pdata = dev_get_platdata(dev);
@@ -425,6 +463,9 @@ static int altera_tse_probe(struct udevice *dev)
int len, idx;
int ret;
+ priv->dma_type = dev_get_driver_data(dev);
+ if (priv->dma_type == ALT_SGDMA)
+ priv->ops = &tse_sgdma_ops;
/*
* decode regs. there are multiple reg tuples, and they need to
* match with reg-names.
@@ -468,15 +509,18 @@ static int altera_tse_probe(struct udevice *dev)
priv->phyaddr = fdtdec_get_int(blob, addr,
"reg", 0);
/* init desc */
- len = sizeof(struct alt_sgdma_descriptor) * 4;
- if (!desc_mem) {
- desc_mem = dma_alloc_coherent(len, &addr);
- if (!desc_mem)
- return -ENOMEM;
+ if (priv->dma_type == ALT_SGDMA) {
+ len = sizeof(struct alt_sgdma_descriptor) * 4;
+ if (!desc_mem) {
+ desc_mem = dma_alloc_coherent(len, &addr);
+ if (!desc_mem)
+ return -ENOMEM;
+ }
+ memset(desc_mem, 0, len);
+ priv->tx_desc = desc_mem;
+ priv->rx_desc = priv->tx_desc +
+ 2 * sizeof(struct alt_sgdma_descriptor);
}
- memset(desc_mem, 0, len);
- priv->tx_desc = desc_mem;
- priv->rx_desc = priv->tx_desc + 2;
/* allocate recv packet buffer */
priv->rx_buf = malloc_cache_aligned(PKTSIZE_ALIGN);
if (!priv->rx_buf)
@@ -523,8 +567,8 @@ static const struct eth_ops altera_tse_ops = {
};
static const struct udevice_id altera_tse_ids[] = {
- { .compatible = "altr,tse-1.0", },
- { }
+ { .compatible = "altr,tse-1.0", .data = ALT_SGDMA },
+ {}
};
U_BOOT_DRIVER(altera_tse) = {
diff --git a/drivers/net/altera_tse.h b/drivers/net/altera_tse.h
index 471a880..fae2378 100644
--- a/drivers/net/altera_tse.h
+++ b/drivers/net/altera_tse.h
@@ -13,6 +13,9 @@
#define __packed_1_ __packed __aligned(1)
+/* dma type */
+#define ALT_SGDMA 0
+
/* SGDMA Stuff */
#define ALT_SGDMA_STATUS_BUSY_MSK BIT(4)
@@ -141,19 +144,28 @@ struct alt_tse_mac {
u32 reserved3[0x38];
};
+struct tse_ops {
+ int (*send)(struct udevice *dev, void *packet, int length);
+ int (*recv)(struct udevice *dev, int flags, uchar **packetp);
+ int (*free_pkt)(struct udevice *dev, uchar *packet, int length);
+ void (*stop)(struct udevice *dev);
+};
+
struct altera_tse_priv {
struct alt_tse_mac *mac_dev;
- struct alt_sgdma_registers *sgdma_rx;
- struct alt_sgdma_registers *sgdma_tx;
+ void *sgdma_rx;
+ void *sgdma_tx;
unsigned int rx_fifo_depth;
unsigned int tx_fifo_depth;
- struct alt_sgdma_descriptor *rx_desc;
- struct alt_sgdma_descriptor *tx_desc;
+ void *rx_desc;
+ void *tx_desc;
unsigned char *rx_buf;
unsigned int phyaddr;
unsigned int interface;
struct phy_device *phydev;
struct mii_dev *bus;
+ const struct tse_ops *ops;
+ int dma_type;
};
#endif /* _ALTERA_TSE_H_ */
--
2.5.0
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