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net: altera_tse: add priv ops to prepare msgdma support

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Add priv ops to prepare msgdma support. These ops are dma type
specific.

Signed-off-by: Thomas Chou <thomas@wytron.com.tw>
Reviewed-by: Marek Vasut <marex@denx.de>
This commit is contained in:
Thomas Chou 2015-11-09 11:02:15 +08:00
parent 577662f084
commit 38fa4aca8a
2 changed files with 81 additions and 25 deletions
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68
drivers/net/altera_tse.c
View file

@ -152,13 +152,11 @@ static void tse_adjust_link(struct altera_tse_priv *priv,
writel(refvar, &mac_dev->command_config); 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 altera_tse_priv *priv = dev_get_priv(dev);
struct alt_sgdma_descriptor *tx_desc = priv->tx_desc; 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( alt_sgdma_construct_descriptor(
tx_desc, tx_desc,
tx_desc + 1, 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; 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 altera_tse_priv *priv = dev_get_priv(dev);
struct alt_sgdma_descriptor *rx_desc = priv->rx_desc; 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; return -EAGAIN;
} }
static int altera_tse_free_pkt(struct udevice *dev, uchar *packet, static int altera_tse_free_pkt_sgdma(struct udevice *dev, uchar *packet,
int length) int length)
{ {
struct altera_tse_priv *priv = dev_get_priv(dev); struct altera_tse_priv *priv = dev_get_priv(dev);
struct alt_sgdma_descriptor *rx_desc = priv->rx_desc; 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( alt_sgdma_construct_descriptor(
rx_desc, rx_desc,
rx_desc + 1, 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 altera_tse_priv *priv = dev_get_priv(dev);
struct alt_sgdma_registers *rx_sgdma = priv->sgdma_rx; struct alt_sgdma_registers *rx_sgdma = priv->sgdma_rx;
@ -264,8 +261,6 @@ static void altera_tse_stop(struct udevice *dev)
if (ret == -ETIMEDOUT) if (ret == -ETIMEDOUT)
writel(ALT_SGDMA_CONTROL_SOFTWARERESET_MSK, writel(ALT_SGDMA_CONTROL_SOFTWARERESET_MSK,
&tx_sgdma->control); &tx_sgdma->control);
altera_tse_stop_mac(priv);
} }
static int tse_mdio_read(struct mii_dev *bus, int addr, int devad, int reg) 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; 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) static int altera_tse_start(struct udevice *dev)
{ {
struct altera_tse_priv *priv = dev_get_priv(dev); struct altera_tse_priv *priv = dev_get_priv(dev);
@ -411,6 +442,13 @@ static int altera_tse_start(struct udevice *dev)
return 0; 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) static int altera_tse_probe(struct udevice *dev)
{ {
struct eth_pdata *pdata = dev_get_platdata(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 len, idx;
int ret; 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 * decode regs. there are multiple reg tuples, and they need to
* match with reg-names. * match with reg-names.
@ -468,6 +509,7 @@ static int altera_tse_probe(struct udevice *dev)
priv->phyaddr = fdtdec_get_int(blob, addr, priv->phyaddr = fdtdec_get_int(blob, addr,
"reg", 0); "reg", 0);
/* init desc */ /* init desc */
if (priv->dma_type == ALT_SGDMA) {
len = sizeof(struct alt_sgdma_descriptor) * 4; len = sizeof(struct alt_sgdma_descriptor) * 4;
if (!desc_mem) { if (!desc_mem) {
desc_mem = dma_alloc_coherent(len, &addr); desc_mem = dma_alloc_coherent(len, &addr);
@ -476,7 +518,9 @@ static int altera_tse_probe(struct udevice *dev)
} }
memset(desc_mem, 0, len); memset(desc_mem, 0, len);
priv->tx_desc = desc_mem; priv->tx_desc = desc_mem;
priv->rx_desc = priv->tx_desc + 2; priv->rx_desc = priv->tx_desc +
2 * sizeof(struct alt_sgdma_descriptor);
}
/* allocate recv packet buffer */ /* allocate recv packet buffer */
priv->rx_buf = malloc_cache_aligned(PKTSIZE_ALIGN); priv->rx_buf = malloc_cache_aligned(PKTSIZE_ALIGN);
if (!priv->rx_buf) if (!priv->rx_buf)
@ -523,7 +567,7 @@ static const struct eth_ops altera_tse_ops = {
}; };
static const struct udevice_id altera_tse_ids[] = { static const struct udevice_id altera_tse_ids[] = {
{ .compatible = "altr,tse-1.0", }, { .compatible = "altr,tse-1.0", .data = ALT_SGDMA },
{} {}
}; };

20
drivers/net/altera_tse.h
View file

@ -13,6 +13,9 @@
#define __packed_1_ __packed __aligned(1) #define __packed_1_ __packed __aligned(1)
/* dma type */
#define ALT_SGDMA 0
/* SGDMA Stuff */ /* SGDMA Stuff */
#define ALT_SGDMA_STATUS_BUSY_MSK BIT(4) #define ALT_SGDMA_STATUS_BUSY_MSK BIT(4)
@ -141,19 +144,28 @@ struct alt_tse_mac {
u32 reserved3[0x38]; 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 altera_tse_priv {
struct alt_tse_mac *mac_dev; struct alt_tse_mac *mac_dev;
struct alt_sgdma_registers *sgdma_rx; void *sgdma_rx;
struct alt_sgdma_registers *sgdma_tx; void *sgdma_tx;
unsigned int rx_fifo_depth; unsigned int rx_fifo_depth;
unsigned int tx_fifo_depth; unsigned int tx_fifo_depth;
struct alt_sgdma_descriptor *rx_desc; void *rx_desc;
struct alt_sgdma_descriptor *tx_desc; void *tx_desc;
unsigned char *rx_buf; unsigned char *rx_buf;
unsigned int phyaddr; unsigned int phyaddr;
unsigned int interface; unsigned int interface;
struct phy_device *phydev; struct phy_device *phydev;
struct mii_dev *bus; struct mii_dev *bus;
const struct tse_ops *ops;
int dma_type;
}; };
#endif /* _ALTERA_TSE_H_ */ #endif /* _ALTERA_TSE_H_ */