From bd3980cc095af1728b994cdd8bf1ac430b6289e6 Mon Sep 17 00:00:00 2001 From: Nobuhiro Iwamatsu Date: Fri, 21 Nov 2008 12:04:18 +0900 Subject: sh: sh_eth: Change new network API sh_eth used old network API. This patch changed new API. Signed-off-by: Nobuhiro Iwamatsu Signed-off-by: Ben Warren --- drivers/net/sh_eth.c | 355 ++++++++++++++++++++++++++++++++------------------- 1 file changed, 225 insertions(+), 130 deletions(-) (limited to 'drivers/net/sh_eth.c') diff --git a/drivers/net/sh_eth.c b/drivers/net/sh_eth.c index 9e3cf98..ebe8588 100644 --- a/drivers/net/sh_eth.c +++ b/drivers/net/sh_eth.c @@ -24,6 +24,7 @@ #include #include #include +#include #include #include @@ -36,12 +37,7 @@ # error "Please define CONFIG_SH_ETHER_PHY_ADDR" #endif -extern int eth_init(bd_t *bd); -extern void eth_halt(void); -extern int eth_rx(void); -extern int eth_send(volatile void *packet, int length); - -static struct dev_info_s *dev; +#define SH_ETH_PHY_DELAY 50000 /* * Bits are written to the PHY serially using the @@ -89,7 +85,7 @@ static void sh_eth_mii_ind_bus_release(int port) udelay(1); } -static int sh_eth_mii_read_phy_bits(int port, u32 * val, int len) +static void sh_eth_mii_read_phy_bits(int port, u32 *val, int len) { int i; u32 pir; @@ -106,8 +102,6 @@ static int sh_eth_mii_read_phy_bits(int port, u32 * val, int len) outl(0, PIR(port)); udelay(1); } - - return 0; } #define PHY_INIT 0xFFFFFFFF @@ -183,26 +177,23 @@ static void sh_eth_mii_write_phy_reg(int port, u8 phy_addr, int reg, u16 val) sh_eth_mii_ind_bus_release(port); } -void eth_halt(void) -{ -} - -int eth_send(volatile void *packet, int len) +int sh_eth_send(struct eth_device *dev, volatile void *packet, int len) { - int port = dev->port; - struct port_info_s *port_info = &dev->port_info[port]; - int timeout; - int rc = 0; + struct sh_eth_dev *eth = dev->priv; + int port = eth->port, ret = 0, timeout; + struct sh_eth_info *port_info = ð->port_info[port]; if (!packet || len > 0xffff) { - printf("eth_send: Invalid argument\n"); - return -EINVAL; + printf(SHETHER_NAME ": %s: Invalid argument\n", __func__); + ret = -EINVAL; + goto err; } /* packet must be a 4 byte boundary */ if ((int)packet & (4 - 1)) { - printf("eth_send: packet not 4 byte alligned\n"); - return -EFAULT; + printf(SHETHER_NAME ": %s: packet not 4 byte alligned\n", __func__); + ret = -EFAULT; + goto err; } /* Update tx descriptor */ @@ -224,24 +215,25 @@ int eth_send(volatile void *packet, int len) udelay(100); if (timeout < 0) { - printf("eth_send: transmit timeout\n"); - rc = -1; + printf(SHETHER_NAME ": transmit timeout\n"); + ret = -ETIMEDOUT; goto err; } -err: port_info->tx_desc_cur++; if (port_info->tx_desc_cur >= port_info->tx_desc_base + NUM_TX_DESC) port_info->tx_desc_cur = port_info->tx_desc_base; - return rc; + return ret; +err: + return ret; } -int eth_rx(void) +int sh_eth_recv(struct eth_device *dev) { - int port = dev->port; - struct port_info_s *port_info = &dev->port_info[port]; - int len = 0; + struct sh_eth_dev *eth = dev->priv; + int port = eth->port, len = 0; + struct sh_eth_info *port_info = ð->port_info[port]; volatile u8 *packet; /* Check if the rx descriptor is ready */ @@ -275,10 +267,10 @@ int eth_rx(void) } #define EDMR_INIT_CNT 1000 -static int sh_eth_reset(struct dev_info_s *dev) +static int sh_eth_reset(struct sh_eth_dev *eth) { - int port = dev->port; - int i; + int port = eth->port; + int ret = 0, i; /* Start e-dmac transmitter and receiver */ outl(EDSR_ENALL, EDSR(port)); @@ -292,33 +284,36 @@ static int sh_eth_reset(struct dev_info_s *dev) } if (i == EDMR_INIT_CNT) { - printf("Error: Software reset timeout\n"); - return -1; + printf(SHETHER_NAME ": Software reset timeout\n"); + ret = -EIO; } - return 0; + + return ret; } -static int sh_eth_tx_desc_init(struct dev_info_s *dev) +static int sh_eth_tx_desc_init(struct sh_eth_dev *eth) { - int port = dev->port; - struct port_info_s *port_info = &dev->port_info[port]; + int port = eth->port, i, ret = 0; u32 tmp_addr; + struct sh_eth_info *port_info = ð->port_info[port]; struct tx_desc_s *cur_tx_desc; - int i; - /* Allocate tx descriptors. They must be TX_DESC_SIZE bytes - aligned */ - if (!(port_info->tx_desc_malloc = malloc(NUM_TX_DESC * + /* + * Allocate tx descriptors. They must be TX_DESC_SIZE bytes aligned + */ + port_info->tx_desc_malloc = malloc(NUM_TX_DESC * sizeof(struct tx_desc_s) + - TX_DESC_SIZE - 1))) { - printf("Error: malloc failed\n"); - return -ENOMEM; + TX_DESC_SIZE - 1); + if (!port_info->tx_desc_malloc) { + printf(SHETHER_NAME ": malloc failed\n"); + ret = -ENOMEM; + goto err; } + tmp_addr = (u32) (((int)port_info->tx_desc_malloc + TX_DESC_SIZE - 1) & ~(TX_DESC_SIZE - 1)); /* Make sure we use a P2 address (non-cacheable) */ port_info->tx_desc_base = (struct tx_desc_s *)ADDR_TO_P2(tmp_addr); - port_info->tx_desc_cur = port_info->tx_desc_base; /* Initialize all descriptors */ @@ -340,26 +335,30 @@ static int sh_eth_tx_desc_init(struct dev_info_s *dev) outl(ADDR_TO_PHY(cur_tx_desc), TDFXR(port)); outl(0x01, TDFFR(port));/* Last discriptor bit */ - return 0; +err: + return ret; } -static int sh_eth_rx_desc_init(struct dev_info_s *dev) +static int sh_eth_rx_desc_init(struct sh_eth_dev *eth) { - int port = dev->port; - struct port_info_s *port_info = &dev->port_info[port]; - u32 tmp_addr; + int port = eth->port, i , ret = 0; + struct sh_eth_info *port_info = ð->port_info[port]; struct rx_desc_s *cur_rx_desc; + u32 tmp_addr; u8 *rx_buf; - int i; - /* Allocate rx descriptors. They must be RX_DESC_SIZE bytes - aligned */ - if (!(port_info->rx_desc_malloc = malloc(NUM_RX_DESC * + /* + * Allocate rx descriptors. They must be RX_DESC_SIZE bytes aligned + */ + port_info->rx_desc_malloc = malloc(NUM_RX_DESC * sizeof(struct rx_desc_s) + - RX_DESC_SIZE - 1))) { - printf("Error: malloc failed\n"); - return -ENOMEM; + RX_DESC_SIZE - 1); + if (!port_info->rx_desc_malloc) { + printf(SHETHER_NAME ": malloc failed\n"); + ret = -ENOMEM; + goto err; } + tmp_addr = (u32) (((int)port_info->rx_desc_malloc + RX_DESC_SIZE - 1) & ~(RX_DESC_SIZE - 1)); /* Make sure we use a P2 address (non-cacheable) */ @@ -367,15 +366,17 @@ static int sh_eth_rx_desc_init(struct dev_info_s *dev) port_info->rx_desc_cur = port_info->rx_desc_base; - /* Allocate rx data buffers. They must be 32 bytes aligned and in - P2 area */ - if (!(port_info->rx_buf_malloc = malloc(NUM_RX_DESC * MAX_BUF_SIZE + - 31))) { - printf("Error: malloc failed\n"); - free(port_info->rx_desc_malloc); - port_info->rx_desc_malloc = NULL; - return -ENOMEM; + /* + * Allocate rx data buffers. They must be 32 bytes aligned and in + * P2 area + */ + port_info->rx_buf_malloc = malloc(NUM_RX_DESC * MAX_BUF_SIZE + 31); + if (!port_info->rx_buf_malloc) { + printf(SHETHER_NAME ": malloc failed\n"); + ret = -ENOMEM; + goto err_buf_malloc; } + tmp_addr = (u32)(((int)port_info->rx_buf_malloc + (32 - 1)) & ~(32 - 1)); port_info->rx_buf_base = (u8 *)ADDR_TO_P2(tmp_addr); @@ -399,18 +400,31 @@ static int sh_eth_rx_desc_init(struct dev_info_s *dev) outl(ADDR_TO_PHY(cur_rx_desc), RDFXR(port)); outl(RDFFR_RDLF, RDFFR(port)); - return 0; + return ret; + +err_buf_malloc: + free(port_info->rx_desc_malloc); + port_info->rx_desc_malloc = NULL; + +err: + return ret; } -static void sh_eth_desc_free(struct dev_info_s *dev) +static void sh_eth_tx_desc_free(struct sh_eth_dev *eth) { - int port = dev->port; - struct port_info_s *port_info = &dev->port_info[port]; + int port = eth->port; + struct sh_eth_info *port_info = ð->port_info[port]; if (port_info->tx_desc_malloc) { free(port_info->tx_desc_malloc); port_info->tx_desc_malloc = NULL; } +} + +static void sh_eth_rx_desc_free(struct sh_eth_dev *eth) +{ + int port = eth->port; + struct sh_eth_info *port_info = ð->port_info[port]; if (port_info->rx_desc_malloc) { free(port_info->rx_desc_malloc); @@ -423,36 +437,48 @@ static void sh_eth_desc_free(struct dev_info_s *dev) } } -static int sh_eth_desc_init(struct dev_info_s *dev) +static int sh_eth_desc_init(struct sh_eth_dev *eth) { - int rc; + int ret = 0; - if ((rc = sh_eth_tx_desc_init(dev)) || (rc = sh_eth_rx_desc_init(dev))) { - sh_eth_desc_free(dev); - return rc; - } + ret = sh_eth_tx_desc_init(eth); + if (ret) + goto err_tx_init; - return 0; + ret = sh_eth_rx_desc_init(eth); + if (ret) + goto err_rx_init; + + return ret; +err_rx_init: + sh_eth_tx_desc_free(eth); + +err_tx_init: + return ret; } -static int sh_eth_phy_config(struct dev_info_s *dev) +static int sh_eth_phy_config(struct sh_eth_dev *eth) { - int port = dev->port; - struct port_info_s *port_info = &dev->port_info[port]; - int timeout; + int port = eth->port, timeout, ret = 0; + struct sh_eth_info *port_info = ð->port_info[port]; u32 val; + /* Reset phy */ - sh_eth_mii_write_phy_reg(port, port_info->phy_addr, PHY_CTRL, PHY_C_RESET); + sh_eth_mii_write_phy_reg + (port, port_info->phy_addr, PHY_CTRL, PHY_C_RESET); timeout = 10; while (timeout--) { - val = sh_eth_mii_read_phy_reg(port, port_info->phy_addr, PHY_CTRL); + val = sh_eth_mii_read_phy_reg(port, + port_info->phy_addr, PHY_CTRL); if (!(val & PHY_C_RESET)) break; - udelay(50000); + udelay(SH_ETH_PHY_DELAY); } + if (timeout < 0) { - printf("%s phy reset timeout\n", __func__); - return -1; + printf(SHETHER_NAME ": phy reset timeout\n"); + ret = -EIO; + goto err_tout; } /* Advertise 100/10 baseT full/half duplex */ @@ -467,23 +493,27 @@ static int sh_eth_phy_config(struct dev_info_s *dev) val = sh_eth_mii_read_phy_reg(port, port_info->phy_addr, 1); if (val & PHY_S_ANEGC) break; - udelay(50000); + + udelay(SH_ETH_PHY_DELAY); } + if (timeout < 0) { - printf("sh_eth_phy_config() phy auto-negotiation failed\n"); - return -1; + printf(SHETHER_NAME ": phy auto-negotiation failed\n"); + ret = -ETIMEDOUT; + goto err_tout; } - return 0; + return ret; + +err_tout: + return ret; } -static int sh_eth_config(struct dev_info_s *dev, bd_t * bd) +static int sh_eth_config(struct sh_eth_dev *eth, bd_t *bd) { - int port = dev->port; - struct port_info_s *port_info = &dev->port_info[port]; - u32 val; - u32 phy_status; - int rc; + int port = eth->port, ret = 0; + u32 val, phy_status; + struct sh_eth_info *port_info = ð->port_info[port]; /* Configure e-dmac registers */ outl((inl(EDMR(port)) & ~EMDR_DESC_R) | EDMR_EL, EDMR(port)); @@ -513,20 +543,20 @@ static int sh_eth_config(struct dev_info_s *dev, bd_t * bd) outl(TPAUSER_TPAUSE, TPAUSER(port)); /* Configure phy */ - if ((rc = sh_eth_phy_config(dev))) - return rc; - + ret = sh_eth_phy_config(eth); + if (ret) { + printf(SHETHER_NAME ":i phy config timeout\n"); + goto err_phy_cfg; + } /* Read phy status to finish configuring the e-mac */ - phy_status = sh_eth_mii_read_phy_reg(dev->port, - dev->port_info[dev->port].phy_addr, - 1); + phy_status = sh_eth_mii_read_phy_reg(port, port_info->phy_addr, 1); /* Set the transfer speed */ if (phy_status & (PHY_S_100X_F|PHY_S_100X_H)) { - printf("100Base/"); + printf(SHETHER_NAME ": 100Base/"); outl(GECMR_100B, GECMR(port)); } else { - printf("10Base/"); + printf(SHETHER_NAME ": 10Base/"); outl(GECMR_10B, GECMR(port)); } @@ -538,27 +568,34 @@ static int sh_eth_config(struct dev_info_s *dev, bd_t * bd) printf("Half\n"); outl((ECMR_CHG_DM|ECMR_RE|ECMR_TE), ECMR(port)); } - return 0; + + return ret; + +err_phy_cfg: + return ret; } -static int sh_eth_start(struct dev_info_s *dev) +static void sh_eth_start(struct sh_eth_dev *eth) { /* * Enable the e-dmac receiver only. The transmitter will be enabled when * we have something to transmit */ - outl(EDRRR_R, EDRRR(dev->port)); + outl(EDRRR_R, EDRRR(eth->port)); +} - return 0; +static void sh_eth_stop(struct sh_eth_dev *eth) +{ + outl(~EDRRR_R, EDRRR(eth->port)); } static int sh_eth_get_mac(bd_t *bd) { char *s, *e; - int i; s = getenv("ethaddr"); if (s != NULL) { + int i; for (i = 0; i < 6; ++i) { bd->bi_enetaddr[i] = s ? simple_strtoul(s, &e, 16) : 0; if (s) @@ -570,34 +607,92 @@ static int sh_eth_get_mac(bd_t *bd) return 0; } -int eth_init(bd_t *bd) +int sh_eth_init(struct eth_device *dev, bd_t *bd) { - int rc; - /* Allocate main device information structure */ - if (!(dev = malloc(sizeof(*dev)))) { - printf("eth_init: malloc failed\n"); - return -ENOMEM; - } + int ret = 0; + struct sh_eth_dev *eth = dev->priv; - memset(dev, 0, sizeof(*dev)); + ret = sh_eth_reset(eth); + if (ret) + goto err; - dev->port = CONFIG_SH_ETHER_USE_PORT; - dev->port_info[dev->port].phy_addr = CONFIG_SH_ETHER_PHY_ADDR; + ret = sh_eth_desc_init(eth); + if (ret) + goto err; - sh_eth_get_mac(bd); + ret = sh_eth_config(eth, bd); + if (ret) + goto err_config; + + sh_eth_start(eth); + + return ret; - if ((rc = sh_eth_reset(dev)) || (rc = sh_eth_desc_init(dev))) +err_config: + sh_eth_tx_desc_free(eth); + sh_eth_rx_desc_free(eth); + +err: + return ret; +} + +void sh_eth_halt(struct eth_device *dev) +{ + struct sh_eth_dev *eth = dev->priv; + + sh_eth_reset(eth); + sh_eth_stop(eth); +} + +int sh_eth_initialize(bd_t *bd) +{ + int ret = 0; + struct sh_eth_dev *eth = NULL; + struct eth_device *dev = NULL; + + eth = (struct sh_eth_dev *)malloc(sizeof(struct sh_eth_dev)); + if (!eth) { + printf(SHETHER_NAME ": %s: malloc failed\n", __func__); + ret = -ENOMEM; goto err; + } - if ((rc = sh_eth_config(dev, bd)) || (rc = sh_eth_start(dev))) - goto err_desc; + dev = (struct eth_device *)malloc(sizeof(struct eth_device)); + if (!dev) { + printf(SHETHER_NAME ": %s: malloc failed\n", __func__); + ret = -ENOMEM; + goto err; + } + memset(dev, 0, sizeof(struct eth_device)); + memset(eth, 0, sizeof(struct sh_eth_dev)); - return 0; + eth->port = CONFIG_SH_ETHER_USE_PORT; + eth->port_info[eth->port].phy_addr = CONFIG_SH_ETHER_PHY_ADDR; + + dev->priv = (void *)eth; + dev->iobase = 0; + dev->init = sh_eth_init; + dev->halt = sh_eth_halt; + dev->send = sh_eth_send; + dev->recv = sh_eth_recv; + eth->port_info[eth->port].dev = dev; + + sprintf(dev->name, SHETHER_NAME); + + /* Register Device to EtherNet subsystem */ + eth_register(dev); + + sh_eth_get_mac(bd); + + return ret; -err_desc: - sh_eth_desc_free(dev); err: - free(dev); - printf("eth_init: Failed\n"); - return rc; + if (dev) + free(dev); + + if (eth) + free(eth); + + printf(SHETHER_NAME ": Failed\n"); + return ret; } -- cgit v1.1