diff options
Diffstat (limited to 'drivers/net/ethernet/wiznet/w5100.c')
| -rw-r--r-- | drivers/net/ethernet/wiznet/w5100.c | 243 |
1 files changed, 179 insertions, 64 deletions
diff --git a/drivers/net/ethernet/wiznet/w5100.c b/drivers/net/ethernet/wiznet/w5100.c index 09149c9ebeff..8ed0c7735ee3 100644 --- a/drivers/net/ethernet/wiznet/w5100.c +++ b/drivers/net/ethernet/wiznet/w5100.c @@ -38,7 +38,7 @@ MODULE_ALIAS("platform:"DRV_NAME); MODULE_LICENSE("GPL"); /* - * W5100 and W5100 common registers + * W5100/W5200/W5500 common registers */ #define W5100_COMMON_REGS 0x0000 #define W5100_MR 0x0000 /* Mode Register */ @@ -48,10 +48,6 @@ MODULE_LICENSE("GPL"); #define MR_IND 0x01 /* Indirect mode */ #define W5100_SHAR 0x0009 /* Source MAC address */ #define W5100_IR 0x0015 /* Interrupt Register */ -#define W5100_IMR 0x0016 /* Interrupt Mask Register */ -#define IR_S0 0x01 /* S0 interrupt */ -#define W5100_RTR 0x0017 /* Retry Time-value Register */ -#define RTR_DEFAULT 2000 /* =0x07d0 (2000) */ #define W5100_COMMON_REGS_LEN 0x0040 #define W5100_Sn_MR 0x0000 /* Sn Mode Register */ @@ -64,7 +60,7 @@ MODULE_LICENSE("GPL"); #define W5100_Sn_RX_RSR 0x0026 /* Sn Receive free memory size */ #define W5100_Sn_RX_RD 0x0028 /* Sn Receive memory read pointer */ -#define S0_REGS(priv) (is_w5200(priv) ? W5200_S0_REGS : W5100_S0_REGS) +#define S0_REGS(priv) ((priv)->s0_regs) #define W5100_S0_MR(priv) (S0_REGS(priv) + W5100_Sn_MR) #define S0_MR_MACRAW 0x04 /* MAC RAW mode (promiscuous) */ @@ -88,7 +84,15 @@ MODULE_LICENSE("GPL"); #define W5100_S0_REGS_LEN 0x0040 /* - * W5100 specific registers + * W5100 and W5200 common registers + */ +#define W5100_IMR 0x0016 /* Interrupt Mask Register */ +#define IR_S0 0x01 /* S0 interrupt */ +#define W5100_RTR 0x0017 /* Retry Time-value Register */ +#define RTR_DEFAULT 2000 /* =0x07d0 (2000) */ + +/* + * W5100 specific register and memory */ #define W5100_RMSR 0x001a /* Receive Memory Size */ #define W5100_TMSR 0x001b /* Transmit Memory Size */ @@ -101,13 +105,12 @@ MODULE_LICENSE("GPL"); #define W5100_RX_MEM_SIZE 0x2000 /* - * W5200 specific registers + * W5200 specific register and memory */ #define W5200_S0_REGS 0x4000 #define W5200_Sn_RXMEM_SIZE(n) (0x401e + (n) * 0x0100) /* Sn RX Memory Size */ #define W5200_Sn_TXMEM_SIZE(n) (0x401f + (n) * 0x0100) /* Sn TX Memory Size */ -#define W5200_S0_IMR 0x402c /* S0 Interrupt Mask Register */ #define W5200_TX_MEM_START 0x8000 #define W5200_TX_MEM_SIZE 0x4000 @@ -115,11 +118,44 @@ MODULE_LICENSE("GPL"); #define W5200_RX_MEM_SIZE 0x4000 /* + * W5500 specific register and memory + * + * W5500 register and memory are organized by multiple blocks. Each one is + * selected by 16bits offset address and 5bits block select bits. So we + * encode it into 32bits address. (lower 16bits is offset address and + * upper 16bits is block select bits) + */ +#define W5500_SIMR 0x0018 /* Socket Interrupt Mask Register */ +#define W5500_RTR 0x0019 /* Retry Time-value Register */ + +#define W5500_S0_REGS 0x10000 + +#define W5500_Sn_RXMEM_SIZE(n) \ + (0x1001e + (n) * 0x40000) /* Sn RX Memory Size */ +#define W5500_Sn_TXMEM_SIZE(n) \ + (0x1001f + (n) * 0x40000) /* Sn TX Memory Size */ + +#define W5500_TX_MEM_START 0x20000 +#define W5500_TX_MEM_SIZE 0x04000 +#define W5500_RX_MEM_START 0x30000 +#define W5500_RX_MEM_SIZE 0x04000 + +/* * Device driver private data structure */ struct w5100_priv { const struct w5100_ops *ops; + + /* Socket 0 register offset address */ + u32 s0_regs; + /* Socket 0 TX buffer offset address and size */ + u32 s0_tx_buf; + u16 s0_tx_buf_size; + /* Socket 0 RX buffer offset address and size */ + u32 s0_rx_buf; + u16 s0_rx_buf_size; + int irq; int link_irq; int link_gpio; @@ -172,12 +208,12 @@ static inline void __iomem *w5100_mmio(struct net_device *ndev) * * 0x8000 bytes are required for memory space. */ -static inline int w5100_read_direct(struct net_device *ndev, u16 addr) +static inline int w5100_read_direct(struct net_device *ndev, u32 addr) { return ioread8(w5100_mmio(ndev) + (addr << CONFIG_WIZNET_BUS_SHIFT)); } -static inline int __w5100_write_direct(struct net_device *ndev, u16 addr, +static inline int __w5100_write_direct(struct net_device *ndev, u32 addr, u8 data) { iowrite8(data, w5100_mmio(ndev) + (addr << CONFIG_WIZNET_BUS_SHIFT)); @@ -185,7 +221,7 @@ static inline int __w5100_write_direct(struct net_device *ndev, u16 addr, return 0; } -static inline int w5100_write_direct(struct net_device *ndev, u16 addr, u8 data) +static inline int w5100_write_direct(struct net_device *ndev, u32 addr, u8 data) { __w5100_write_direct(ndev, addr, data); mmiowb(); @@ -193,7 +229,7 @@ static inline int w5100_write_direct(struct net_device *ndev, u16 addr, u8 data) return 0; } -static int w5100_read16_direct(struct net_device *ndev, u16 addr) +static int w5100_read16_direct(struct net_device *ndev, u32 addr) { u16 data; data = w5100_read_direct(ndev, addr) << 8; @@ -201,7 +237,7 @@ static int w5100_read16_direct(struct net_device *ndev, u16 addr) return data; } -static int w5100_write16_direct(struct net_device *ndev, u16 addr, u16 data) +static int w5100_write16_direct(struct net_device *ndev, u32 addr, u16 data) { __w5100_write_direct(ndev, addr, data >> 8); __w5100_write_direct(ndev, addr + 1, data); @@ -210,7 +246,7 @@ static int w5100_write16_direct(struct net_device *ndev, u16 addr, u16 data) return 0; } -static int w5100_readbulk_direct(struct net_device *ndev, u16 addr, u8 *buf, +static int w5100_readbulk_direct(struct net_device *ndev, u32 addr, u8 *buf, int len) { int i; @@ -221,7 +257,7 @@ static int w5100_readbulk_direct(struct net_device *ndev, u16 addr, u8 *buf, return 0; } -static int w5100_writebulk_direct(struct net_device *ndev, u16 addr, +static int w5100_writebulk_direct(struct net_device *ndev, u32 addr, const u8 *buf, int len) { int i; @@ -275,7 +311,7 @@ static const struct w5100_ops w5100_mmio_direct_ops = { #define W5100_IDM_AR 0x01 /* Indirect Mode Address Register */ #define W5100_IDM_DR 0x03 /* Indirect Mode Data Register */ -static int w5100_read_indirect(struct net_device *ndev, u16 addr) +static int w5100_read_indirect(struct net_device *ndev, u32 addr) { struct w5100_mmio_priv *mmio_priv = w5100_mmio_priv(ndev); unsigned long flags; @@ -289,7 +325,7 @@ static int w5100_read_indirect(struct net_device *ndev, u16 addr) return data; } -static int w5100_write_indirect(struct net_device *ndev, u16 addr, u8 data) +static int w5100_write_indirect(struct net_device *ndev, u32 addr, u8 data) { struct w5100_mmio_priv *mmio_priv = w5100_mmio_priv(ndev); unsigned long flags; @@ -302,7 +338,7 @@ static int w5100_write_indirect(struct net_device *ndev, u16 addr, u8 data) return 0; } -static int w5100_read16_indirect(struct net_device *ndev, u16 addr) +static int w5100_read16_indirect(struct net_device *ndev, u32 addr) { struct w5100_mmio_priv *mmio_priv = w5100_mmio_priv(ndev); unsigned long flags; @@ -317,7 +353,7 @@ static int w5100_read16_indirect(struct net_device *ndev, u16 addr) return data; } -static int w5100_write16_indirect(struct net_device *ndev, u16 addr, u16 data) +static int w5100_write16_indirect(struct net_device *ndev, u32 addr, u16 data) { struct w5100_mmio_priv *mmio_priv = w5100_mmio_priv(ndev); unsigned long flags; @@ -331,7 +367,7 @@ static int w5100_write16_indirect(struct net_device *ndev, u16 addr, u16 data) return 0; } -static int w5100_readbulk_indirect(struct net_device *ndev, u16 addr, u8 *buf, +static int w5100_readbulk_indirect(struct net_device *ndev, u32 addr, u8 *buf, int len) { struct w5100_mmio_priv *mmio_priv = w5100_mmio_priv(ndev); @@ -350,7 +386,7 @@ static int w5100_readbulk_indirect(struct net_device *ndev, u16 addr, u8 *buf, return 0; } -static int w5100_writebulk_indirect(struct net_device *ndev, u16 addr, +static int w5100_writebulk_indirect(struct net_device *ndev, u32 addr, const u8 *buf, int len) { struct w5100_mmio_priv *mmio_priv = w5100_mmio_priv(ndev); @@ -392,32 +428,32 @@ static const struct w5100_ops w5100_mmio_indirect_ops = { #if defined(CONFIG_WIZNET_BUS_DIRECT) -static int w5100_read(struct w5100_priv *priv, u16 addr) +static int w5100_read(struct w5100_priv *priv, u32 addr) { return w5100_read_direct(priv->ndev, addr); } -static int w5100_write(struct w5100_priv *priv, u16 addr, u8 data) +static int w5100_write(struct w5100_priv *priv, u32 addr, u8 data) { return w5100_write_direct(priv->ndev, addr, data); } -static int w5100_read16(struct w5100_priv *priv, u16 addr) +static int w5100_read16(struct w5100_priv *priv, u32 addr) { return w5100_read16_direct(priv->ndev, addr); } -static int w5100_write16(struct w5100_priv *priv, u16 addr, u16 data) +static int w5100_write16(struct w5100_priv *priv, u32 addr, u16 data) { return w5100_write16_direct(priv->ndev, addr, data); } -static int w5100_readbulk(struct w5100_priv *priv, u16 addr, u8 *buf, int len) +static int w5100_readbulk(struct w5100_priv *priv, u32 addr, u8 *buf, int len) { return w5100_readbulk_direct(priv->ndev, addr, buf, len); } -static int w5100_writebulk(struct w5100_priv *priv, u16 addr, const u8 *buf, +static int w5100_writebulk(struct w5100_priv *priv, u32 addr, const u8 *buf, int len) { return w5100_writebulk_direct(priv->ndev, addr, buf, len); @@ -425,32 +461,32 @@ static int w5100_writebulk(struct w5100_priv *priv, u16 addr, const u8 *buf, #elif defined(CONFIG_WIZNET_BUS_INDIRECT) -static int w5100_read(struct w5100_priv *priv, u16 addr) +static int w5100_read(struct w5100_priv *priv, u32 addr) { return w5100_read_indirect(priv->ndev, addr); } -static int w5100_write(struct w5100_priv *priv, u16 addr, u8 data) +static int w5100_write(struct w5100_priv *priv, u32 addr, u8 data) { return w5100_write_indirect(priv->ndev, addr, data); } -static int w5100_read16(struct w5100_priv *priv, u16 addr) +static int w5100_read16(struct w5100_priv *priv, u32 addr) { return w5100_read16_indirect(priv->ndev, addr); } -static int w5100_write16(struct w5100_priv *priv, u16 addr, u16 data) +static int w5100_write16(struct w5100_priv *priv, u32 addr, u16 data) { return w5100_write16_indirect(priv->ndev, addr, data); } -static int w5100_readbulk(struct w5100_priv *priv, u16 addr, u8 *buf, int len) +static int w5100_readbulk(struct w5100_priv *priv, u32 addr, u8 *buf, int len) { return w5100_readbulk_indirect(priv->ndev, addr, buf, len); } -static int w5100_writebulk(struct w5100_priv *priv, u16 addr, const u8 *buf, +static int w5100_writebulk(struct w5100_priv *priv, u32 addr, const u8 *buf, int len) { return w5100_writebulk_indirect(priv->ndev, addr, buf, len); @@ -458,32 +494,32 @@ static int w5100_writebulk(struct w5100_priv *priv, u16 addr, const u8 *buf, #else /* CONFIG_WIZNET_BUS_ANY */ -static int w5100_read(struct w5100_priv *priv, u16 addr) +static int w5100_read(struct w5100_priv *priv, u32 addr) { return priv->ops->read(priv->ndev, addr); } -static int w5100_write(struct w5100_priv *priv, u16 addr, u8 data) +static int w5100_write(struct w5100_priv *priv, u32 addr, u8 data) { return priv->ops->write(priv->ndev, addr, data); } -static int w5100_read16(struct w5100_priv *priv, u16 addr) +static int w5100_read16(struct w5100_priv *priv, u32 addr) { return priv->ops->read16(priv->ndev, addr); } -static int w5100_write16(struct w5100_priv *priv, u16 addr, u16 data) +static int w5100_write16(struct w5100_priv *priv, u32 addr, u16 data) { return priv->ops->write16(priv->ndev, addr, data); } -static int w5100_readbulk(struct w5100_priv *priv, u16 addr, u8 *buf, int len) +static int w5100_readbulk(struct w5100_priv *priv, u32 addr, u8 *buf, int len) { return priv->ops->readbulk(priv->ndev, addr, buf, len); } -static int w5100_writebulk(struct w5100_priv *priv, u16 addr, const u8 *buf, +static int w5100_writebulk(struct w5100_priv *priv, u32 addr, const u8 *buf, int len) { return priv->ops->writebulk(priv->ndev, addr, buf, len); @@ -493,13 +529,11 @@ static int w5100_writebulk(struct w5100_priv *priv, u16 addr, const u8 *buf, static int w5100_readbuf(struct w5100_priv *priv, u16 offset, u8 *buf, int len) { - u16 addr; + u32 addr; int remain = 0; int ret; - const u16 mem_start = - is_w5200(priv) ? W5200_RX_MEM_START : W5100_RX_MEM_START; - const u16 mem_size = - is_w5200(priv) ? W5200_RX_MEM_SIZE : W5100_RX_MEM_SIZE; + const u32 mem_start = priv->s0_rx_buf; + const u16 mem_size = priv->s0_rx_buf_size; offset %= mem_size; addr = mem_start + offset; @@ -519,13 +553,11 @@ static int w5100_readbuf(struct w5100_priv *priv, u16 offset, u8 *buf, int len) static int w5100_writebuf(struct w5100_priv *priv, u16 offset, const u8 *buf, int len) { - u16 addr; + u32 addr; int ret; int remain = 0; - const u16 mem_start = - is_w5200(priv) ? W5200_TX_MEM_START : W5100_TX_MEM_START; - const u16 mem_size = - is_w5200(priv) ? W5200_TX_MEM_SIZE : W5100_TX_MEM_SIZE; + const u32 mem_start = priv->s0_tx_buf; + const u16 mem_size = priv->s0_tx_buf_size; offset %= mem_size; addr = mem_start + offset; @@ -578,6 +610,28 @@ static void w5100_write_macaddr(struct w5100_priv *priv) w5100_writebulk(priv, W5100_SHAR, ndev->dev_addr, ETH_ALEN); } +static void w5100_socket_intr_mask(struct w5100_priv *priv, u8 mask) +{ + u32 imr; + + if (priv->ops->chip_id == W5500) + imr = W5500_SIMR; + else + imr = W5100_IMR; + + w5100_write(priv, imr, mask); +} + +static void w5100_enable_intr(struct w5100_priv *priv) +{ + w5100_socket_intr_mask(priv, IR_S0); +} + +static void w5100_disable_intr(struct w5100_priv *priv) +{ + w5100_socket_intr_mask(priv, 0); +} + static void w5100_memory_configure(struct w5100_priv *priv) { /* Configure 16K of internal memory @@ -603,17 +657,52 @@ static void w5200_memory_configure(struct w5100_priv *priv) } } -static void w5100_hw_reset(struct w5100_priv *priv) +static void w5500_memory_configure(struct w5100_priv *priv) { + int i; + + /* Configure internal RX memory as 16K RX buffer and + * internal TX memory as 16K TX buffer + */ + w5100_write(priv, W5500_Sn_RXMEM_SIZE(0), 0x10); + w5100_write(priv, W5500_Sn_TXMEM_SIZE(0), 0x10); + + for (i = 1; i < 8; i++) { + w5100_write(priv, W5500_Sn_RXMEM_SIZE(i), 0); + w5100_write(priv, W5500_Sn_TXMEM_SIZE(i), 0); + } +} + +static int w5100_hw_reset(struct w5100_priv *priv) +{ + u32 rtr; + w5100_reset(priv); - w5100_write(priv, W5100_IMR, 0); + w5100_disable_intr(priv); w5100_write_macaddr(priv); - if (is_w5200(priv)) - w5200_memory_configure(priv); - else + switch (priv->ops->chip_id) { + case W5100: w5100_memory_configure(priv); + rtr = W5100_RTR; + break; + case W5200: + w5200_memory_configure(priv); + rtr = W5100_RTR; + break; + case W5500: + w5500_memory_configure(priv); + rtr = W5500_RTR; + break; + default: + return -EINVAL; + } + + if (w5100_read16(priv, rtr) != RTR_DEFAULT) + return -ENODEV; + + return 0; } static void w5100_hw_start(struct w5100_priv *priv) @@ -621,12 +710,12 @@ static void w5100_hw_start(struct w5100_priv *priv) w5100_write(priv, W5100_S0_MR(priv), priv->promisc ? S0_MR_MACRAW : S0_MR_MACRAW_MF); w5100_command(priv, S0_CR_OPEN); - w5100_write(priv, W5100_IMR, IR_S0); + w5100_enable_intr(priv); } static void w5100_hw_close(struct w5100_priv *priv) { - w5100_write(priv, W5100_IMR, 0); + w5100_disable_intr(priv); w5100_command(priv, S0_CR_CLOSE); } @@ -805,7 +894,7 @@ static void w5100_rx_work(struct work_struct *work) while ((skb = w5100_rx_skb(priv->ndev))) netif_rx_ni(skb); - w5100_write(priv, W5100_IMR, IR_S0); + w5100_enable_intr(priv); } static int w5100_napi_poll(struct napi_struct *napi, int budget) @@ -824,7 +913,7 @@ static int w5100_napi_poll(struct napi_struct *napi, int budget) if (rx_count < budget) { napi_complete(napi); - w5100_write(priv, W5100_IMR, IR_S0); + w5100_enable_intr(priv); } return rx_count; @@ -846,7 +935,7 @@ static irqreturn_t w5100_interrupt(int irq, void *ndev_instance) } if (ir & S0_IR_RECV) { - w5100_write(priv, W5100_IMR, 0); + w5100_disable_intr(priv); if (priv->ops->may_sleep) queue_work(priv->xfer_wq, &priv->rx_work); @@ -1014,6 +1103,34 @@ int w5100_probe(struct device *dev, const struct w5100_ops *ops, SET_NETDEV_DEV(ndev, dev); dev_set_drvdata(dev, ndev); priv = netdev_priv(ndev); + + switch (ops->chip_id) { + case W5100: + priv->s0_regs = W5100_S0_REGS; + priv->s0_tx_buf = W5100_TX_MEM_START; + priv->s0_tx_buf_size = W5100_TX_MEM_SIZE; + priv->s0_rx_buf = W5100_RX_MEM_START; + priv->s0_rx_buf_size = W5100_RX_MEM_SIZE; + break; + case W5200: + priv->s0_regs = W5200_S0_REGS; + priv->s0_tx_buf = W5200_TX_MEM_START; + priv->s0_tx_buf_size = W5200_TX_MEM_SIZE; + priv->s0_rx_buf = W5200_RX_MEM_START; + priv->s0_rx_buf_size = W5200_RX_MEM_SIZE; + break; + case W5500: + priv->s0_regs = W5500_S0_REGS; + priv->s0_tx_buf = W5500_TX_MEM_START; + priv->s0_tx_buf_size = W5500_TX_MEM_SIZE; + priv->s0_rx_buf = W5500_RX_MEM_START; + priv->s0_rx_buf_size = W5500_RX_MEM_SIZE; + break; + default: + err = -EINVAL; + goto err_register; + } + priv->ndev = ndev; priv->ops = ops; priv->irq = irq; @@ -1055,11 +1172,9 @@ int w5100_probe(struct device *dev, const struct w5100_ops *ops, goto err_hw; } - w5100_hw_reset(priv); - if (w5100_read16(priv, W5100_RTR) != RTR_DEFAULT) { - err = -ENODEV; + err = w5100_hw_reset(priv); + if (err) goto err_hw; - } if (ops->may_sleep) { err = request_threaded_irq(priv->irq, NULL, w5100_interrupt, |