diff options
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/ravb.c | 2 | ||||
| -rw-r--r-- | drivers/net/sh_eth.c | 507 | ||||
| -rw-r--r-- | drivers/net/sh_eth.h | 6 |
3 files changed, 419 insertions, 96 deletions
diff --git a/drivers/net/ravb.c b/drivers/net/ravb.c index 26bd915291..093288b639 100644 --- a/drivers/net/ravb.c +++ b/drivers/net/ravb.c @@ -438,7 +438,7 @@ static int ravb_config(struct udevice *dev) return 0; } -int ravb_start(struct udevice *dev) +static int ravb_start(struct udevice *dev) { struct ravb_priv *eth = dev_get_priv(dev); int ret; diff --git a/drivers/net/sh_eth.c b/drivers/net/sh_eth.c index 6edb51e12f..5a5c6bc39e 100644 --- a/drivers/net/sh_eth.c +++ b/drivers/net/sh_eth.c @@ -18,6 +18,13 @@ #include <linux/errno.h> #include <asm/io.h> +#ifdef CONFIG_DM_ETH +#include <clk.h> +#include <dm.h> +#include <linux/mii.h> +#include <asm/gpio.h> +#endif + #include "sh_eth.h" #ifndef CONFIG_SH_ETHER_USE_PORT @@ -54,9 +61,8 @@ #define TIMEOUT_CNT 1000 -int sh_eth_send(struct eth_device *dev, void *packet, int len) +static int sh_eth_send_common(struct sh_eth_dev *eth, void *packet, int len) { - struct sh_eth_dev *eth = dev->priv; int port = eth->port, ret = 0, timeout; struct sh_eth_info *port_info = ð->port_info[port]; @@ -112,48 +118,45 @@ err: return ret; } -int sh_eth_recv(struct eth_device *dev) +static int sh_eth_recv_start(struct sh_eth_dev *eth) { - struct sh_eth_dev *eth = dev->priv; int port = eth->port, len = 0; struct sh_eth_info *port_info = ð->port_info[port]; - uchar *packet; /* Check if the rx descriptor is ready */ invalidate_cache(port_info->rx_desc_cur, sizeof(struct rx_desc_s)); - if (!(port_info->rx_desc_cur->rd0 & RD_RACT)) { - /* Check for errors */ - if (!(port_info->rx_desc_cur->rd0 & RD_RFE)) { - len = port_info->rx_desc_cur->rd1 & 0xffff; - packet = (uchar *) - ADDR_TO_P2(port_info->rx_desc_cur->rd2); - invalidate_cache(packet, len); - net_process_received_packet(packet, len); - } - - /* Make current descriptor available again */ - if (port_info->rx_desc_cur->rd0 & RD_RDLE) - port_info->rx_desc_cur->rd0 = RD_RACT | RD_RDLE; - else - port_info->rx_desc_cur->rd0 = RD_RACT; - - flush_cache_wback(port_info->rx_desc_cur, - sizeof(struct rx_desc_s)); - - /* Point to the next descriptor */ - port_info->rx_desc_cur++; - if (port_info->rx_desc_cur >= - port_info->rx_desc_base + NUM_RX_DESC) - port_info->rx_desc_cur = port_info->rx_desc_base; - } + if (port_info->rx_desc_cur->rd0 & RD_RACT) + return -EINVAL; - /* Restart the receiver if disabled */ - if (!(sh_eth_read(port_info, EDRRR) & EDRRR_R)) - sh_eth_write(port_info, EDRRR_R, EDRRR); + /* Check for errors */ + if (port_info->rx_desc_cur->rd0 & RD_RFE) + return -EINVAL; + + len = port_info->rx_desc_cur->rd1 & 0xffff; return len; } +static void sh_eth_recv_finish(struct sh_eth_dev *eth) +{ + struct sh_eth_info *port_info = ð->port_info[eth->port]; + + /* Make current descriptor available again */ + if (port_info->rx_desc_cur->rd0 & RD_RDLE) + port_info->rx_desc_cur->rd0 = RD_RACT | RD_RDLE; + else + port_info->rx_desc_cur->rd0 = RD_RACT; + + flush_cache_wback(port_info->rx_desc_cur, + sizeof(struct rx_desc_s)); + + /* Point to the next descriptor */ + port_info->rx_desc_cur++; + if (port_info->rx_desc_cur >= + port_info->rx_desc_base + NUM_RX_DESC) + port_info->rx_desc_cur = port_info->rx_desc_base; +} + static int sh_eth_reset(struct sh_eth_dev *eth) { struct sh_eth_info *port_info = ð->port_info[eth->port]; @@ -360,29 +363,21 @@ err_tx_init: return ret; } -static int sh_eth_phy_config(struct sh_eth_dev *eth) +static void sh_eth_write_hwaddr(struct sh_eth_info *port_info, + unsigned char *mac) { - int port = eth->port, ret = 0; - struct sh_eth_info *port_info = ð->port_info[port]; - struct eth_device *dev = port_info->dev; - struct phy_device *phydev; + u32 val; - phydev = phy_connect( - miiphy_get_dev_by_name(dev->name), - port_info->phy_addr, dev, CONFIG_SH_ETHER_PHY_MODE); - port_info->phydev = phydev; - phy_config(phydev); + val = (mac[0] << 24) | (mac[1] << 16) | (mac[2] << 8) | mac[3]; + sh_eth_write(port_info, val, MAHR); - return ret; + val = (mac[4] << 8) | mac[5]; + sh_eth_write(port_info, val, MALR); } -static int sh_eth_config(struct sh_eth_dev *eth) +static void sh_eth_mac_regs_config(struct sh_eth_dev *eth, unsigned char *mac) { - int port = eth->port, ret = 0; - u32 val; - struct sh_eth_info *port_info = ð->port_info[port]; - struct eth_device *dev = port_info->dev; - struct phy_device *phy; + struct sh_eth_info *port_info = ð->port_info[eth->port]; /* Configure e-dmac registers */ sh_eth_write(port_info, (sh_eth_read(port_info, EDMR) & ~EMDR_DESC_R) | @@ -402,12 +397,7 @@ static int sh_eth_config(struct sh_eth_dev *eth) sh_eth_write(port_info, 0, ECSIPR); /* Set Mac address */ - val = dev->enetaddr[0] << 24 | dev->enetaddr[1] << 16 | - dev->enetaddr[2] << 8 | dev->enetaddr[3]; - sh_eth_write(port_info, val, MAHR); - - val = dev->enetaddr[4] << 8 | dev->enetaddr[5]; - sh_eth_write(port_info, val, MALR); + sh_eth_write_hwaddr(port_info, mac); sh_eth_write(port_info, RFLR_RFL_MIN, RFLR); #if defined(SH_ETH_TYPE_GETHER) @@ -421,24 +411,17 @@ static int sh_eth_config(struct sh_eth_dev *eth) #if defined(CONFIG_CPU_SH7734) || defined(CONFIG_R8A7740) sh_eth_write(port_info, CONFIG_SH_ETHER_SH7734_MII, RMII_MII); -#elif defined(CONFIG_R8A7790) || defined(CONFIG_R8A7791) || \ - defined(CONFIG_R8A7793) || defined(CONFIG_R8A7794) +#elif defined(CONFIG_RCAR_GEN2) sh_eth_write(port_info, sh_eth_read(port_info, RMIIMR) | 0x1, RMIIMR); #endif - /* Configure phy */ - ret = sh_eth_phy_config(eth); - if (ret) { - printf(SHETHER_NAME ": phy config timeout\n"); - goto err_phy_cfg; - } - phy = port_info->phydev; - ret = phy_startup(phy); - if (ret) { - printf(SHETHER_NAME ": phy startup failure\n"); - return ret; - } +} - val = 0; +static int sh_eth_phy_regs_config(struct sh_eth_dev *eth) +{ + struct sh_eth_info *port_info = ð->port_info[eth->port]; + struct phy_device *phy = port_info->phydev; + int ret = 0; + u32 val = 0; /* Set the transfer speed */ if (phy->speed == 100) { @@ -447,9 +430,7 @@ static int sh_eth_config(struct sh_eth_dev *eth) sh_eth_write(port_info, GECMR_100B, GECMR); #elif defined(CONFIG_CPU_SH7757) || defined(CONFIG_CPU_SH7752) sh_eth_write(port_info, 1, RTRATE); -#elif defined(CONFIG_CPU_SH7724) || defined(CONFIG_R8A7790) || \ - defined(CONFIG_R8A7791) || defined(CONFIG_R8A7793) || \ - defined(CONFIG_R8A7794) +#elif defined(CONFIG_CPU_SH7724) || defined(CONFIG_RCAR_GEN2) val = ECMR_RTM; #endif } else if (phy->speed == 10) { @@ -481,9 +462,6 @@ static int sh_eth_config(struct sh_eth_dev *eth) } return ret; - -err_phy_cfg: - return ret; } static void sh_eth_start(struct sh_eth_dev *eth) @@ -504,36 +482,123 @@ static void sh_eth_stop(struct sh_eth_dev *eth) sh_eth_write(port_info, ~EDRRR_R, EDRRR); } -int sh_eth_init(struct eth_device *dev, bd_t *bd) +static int sh_eth_init_common(struct sh_eth_dev *eth, unsigned char *mac) { int ret = 0; - struct sh_eth_dev *eth = dev->priv; ret = sh_eth_reset(eth); if (ret) - goto err; + return ret; ret = sh_eth_desc_init(eth); if (ret) - goto err; + return ret; + + sh_eth_mac_regs_config(eth, mac); + + return 0; +} + +static int sh_eth_start_common(struct sh_eth_dev *eth) +{ + struct sh_eth_info *port_info = ð->port_info[eth->port]; + int ret; - ret = sh_eth_config(eth); + ret = phy_startup(port_info->phydev); + if (ret) { + printf(SHETHER_NAME ": phy startup failure\n"); + return ret; + } + + ret = sh_eth_phy_regs_config(eth); if (ret) - goto err_config; + return ret; sh_eth_start(eth); + return 0; +} + +#ifndef CONFIG_DM_ETH +static int sh_eth_phy_config_legacy(struct sh_eth_dev *eth) +{ + int port = eth->port, ret = 0; + struct sh_eth_info *port_info = ð->port_info[port]; + struct eth_device *dev = port_info->dev; + struct phy_device *phydev; + + phydev = phy_connect( + miiphy_get_dev_by_name(dev->name), + port_info->phy_addr, dev, CONFIG_SH_ETHER_PHY_MODE); + port_info->phydev = phydev; + phy_config(phydev); + return ret; +} + +static int sh_eth_send_legacy(struct eth_device *dev, void *packet, int len) +{ + struct sh_eth_dev *eth = dev->priv; + + return sh_eth_send_common(eth, packet, len); +} + +static int sh_eth_recv_common(struct sh_eth_dev *eth) +{ + int port = eth->port, len = 0; + struct sh_eth_info *port_info = ð->port_info[port]; + uchar *packet = (uchar *)ADDR_TO_P2(port_info->rx_desc_cur->rd2); + + len = sh_eth_recv_start(eth); + if (len > 0) { + invalidate_cache(packet, len); + net_process_received_packet(packet, len); + sh_eth_recv_finish(eth); + } else + len = 0; -err_config: + /* Restart the receiver if disabled */ + if (!(sh_eth_read(port_info, EDRRR) & EDRRR_R)) + sh_eth_write(port_info, EDRRR_R, EDRRR); + + return len; +} + +static int sh_eth_recv_legacy(struct eth_device *dev) +{ + struct sh_eth_dev *eth = dev->priv; + + return sh_eth_recv_common(eth); +} + +static int sh_eth_init_legacy(struct eth_device *dev, bd_t *bd) +{ + struct sh_eth_dev *eth = dev->priv; + int ret; + + ret = sh_eth_init_common(eth, dev->enetaddr); + if (ret) + return ret; + + ret = sh_eth_phy_config_legacy(eth); + if (ret) { + printf(SHETHER_NAME ": phy config timeout\n"); + goto err_start; + } + + ret = sh_eth_start_common(eth); + if (ret) + goto err_start; + + return 0; + +err_start: sh_eth_tx_desc_free(eth); sh_eth_rx_desc_free(eth); - -err: return ret; } -void sh_eth_halt(struct eth_device *dev) +void sh_eth_halt_legacy(struct eth_device *dev) { struct sh_eth_dev *eth = dev->priv; @@ -570,10 +635,10 @@ int sh_eth_initialize(bd_t *bd) 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; + dev->init = sh_eth_init_legacy; + dev->halt = sh_eth_halt_legacy; + dev->send = sh_eth_send_legacy; + dev->recv = sh_eth_recv_legacy; eth->port_info[eth->port].dev = dev; strcpy(dev->name, SHETHER_NAME); @@ -609,6 +674,266 @@ err: return ret; } +#else /* CONFIG_DM_ETH */ + +struct sh_ether_priv { + struct sh_eth_dev shdev; + + struct mii_dev *bus; + void __iomem *iobase; + struct clk clk; + struct gpio_desc reset_gpio; +}; + +static int sh_ether_send(struct udevice *dev, void *packet, int len) +{ + struct sh_ether_priv *priv = dev_get_priv(dev); + struct sh_eth_dev *eth = &priv->shdev; + + return sh_eth_send_common(eth, packet, len); +} + +static int sh_ether_recv(struct udevice *dev, int flags, uchar **packetp) +{ + struct sh_ether_priv *priv = dev_get_priv(dev); + struct sh_eth_dev *eth = &priv->shdev; + struct sh_eth_info *port_info = ð->port_info[eth->port]; + uchar *packet = (uchar *)ADDR_TO_P2(port_info->rx_desc_cur->rd2); + int len; + + len = sh_eth_recv_start(eth); + if (len > 0) { + invalidate_cache(packet, len); + *packetp = packet; + + return len; + } else { + len = 0; + + /* Restart the receiver if disabled */ + if (!(sh_eth_read(port_info, EDRRR) & EDRRR_R)) + sh_eth_write(port_info, EDRRR_R, EDRRR); + + return -EAGAIN; + } +} + +static int sh_ether_free_pkt(struct udevice *dev, uchar *packet, int length) +{ + struct sh_ether_priv *priv = dev_get_priv(dev); + struct sh_eth_dev *eth = &priv->shdev; + struct sh_eth_info *port_info = ð->port_info[eth->port]; + + sh_eth_recv_finish(eth); + + /* Restart the receiver if disabled */ + if (!(sh_eth_read(port_info, EDRRR) & EDRRR_R)) + sh_eth_write(port_info, EDRRR_R, EDRRR); + + return 0; +} + +static int sh_ether_write_hwaddr(struct udevice *dev) +{ + struct sh_ether_priv *priv = dev_get_priv(dev); + struct sh_eth_dev *eth = &priv->shdev; + struct sh_eth_info *port_info = ð->port_info[eth->port]; + struct eth_pdata *pdata = dev_get_platdata(dev); + + sh_eth_write_hwaddr(port_info, pdata->enetaddr); + + return 0; +} + +static int sh_eth_phy_config(struct udevice *dev) +{ + struct sh_ether_priv *priv = dev_get_priv(dev); + struct eth_pdata *pdata = dev_get_platdata(dev); + struct sh_eth_dev *eth = &priv->shdev; + int port = eth->port, ret = 0; + struct sh_eth_info *port_info = ð->port_info[port]; + struct phy_device *phydev; + int mask = 0xffffffff; + + phydev = phy_find_by_mask(priv->bus, mask, pdata->phy_interface); + if (!phydev) + return -ENODEV; + + phy_connect_dev(phydev, dev); + + port_info->phydev = phydev; + phy_config(phydev); + + return ret; +} + +static int sh_ether_start(struct udevice *dev) +{ + struct sh_ether_priv *priv = dev_get_priv(dev); + struct eth_pdata *pdata = dev_get_platdata(dev); + struct sh_eth_dev *eth = &priv->shdev; + int ret; + + ret = clk_enable(&priv->clk); + if (ret) + return ret; + + ret = sh_eth_init_common(eth, pdata->enetaddr); + if (ret) + goto err_clk; + + ret = sh_eth_phy_config(dev); + if (ret) { + printf(SHETHER_NAME ": phy config timeout\n"); + goto err_start; + } + + ret = sh_eth_start_common(eth); + if (ret) + goto err_start; + + return 0; + +err_start: + sh_eth_tx_desc_free(eth); + sh_eth_rx_desc_free(eth); +err_clk: + clk_disable(&priv->clk); + return ret; +} + +static void sh_ether_stop(struct udevice *dev) +{ + struct sh_ether_priv *priv = dev_get_priv(dev); + + sh_eth_stop(&priv->shdev); + clk_disable(&priv->clk); +} + +static int sh_ether_probe(struct udevice *udev) +{ + struct eth_pdata *pdata = dev_get_platdata(udev); + struct sh_ether_priv *priv = dev_get_priv(udev); + struct sh_eth_dev *eth = &priv->shdev; + struct mii_dev *mdiodev; + void __iomem *iobase; + int ret; + + iobase = map_physmem(pdata->iobase, 0x1000, MAP_NOCACHE); + priv->iobase = iobase; + + ret = clk_get_by_index(udev, 0, &priv->clk); + if (ret < 0) + goto err_mdio_alloc; + + gpio_request_by_name(udev, "reset-gpios", 0, &priv->reset_gpio, + GPIOD_IS_OUT); + + mdiodev = mdio_alloc(); + if (!mdiodev) { + ret = -ENOMEM; + goto err_mdio_alloc; + } + + mdiodev->read = bb_miiphy_read; + mdiodev->write = bb_miiphy_write; + bb_miiphy_buses[0].priv = eth; + snprintf(mdiodev->name, sizeof(mdiodev->name), udev->name); + + ret = mdio_register(mdiodev); + if (ret < 0) + goto err_mdio_register; + + priv->bus = miiphy_get_dev_by_name(udev->name); + + eth->port = CONFIG_SH_ETHER_USE_PORT; + eth->port_info[eth->port].phy_addr = CONFIG_SH_ETHER_PHY_ADDR; + eth->port_info[eth->port].iobase = + (void __iomem *)(BASE_IO_ADDR + 0x800 * eth->port); + + return 0; + +err_mdio_register: + mdio_free(mdiodev); +err_mdio_alloc: + unmap_physmem(priv->iobase, MAP_NOCACHE); + return ret; +} + +static int sh_ether_remove(struct udevice *udev) +{ + struct sh_ether_priv *priv = dev_get_priv(udev); + struct sh_eth_dev *eth = &priv->shdev; + struct sh_eth_info *port_info = ð->port_info[eth->port]; + + free(port_info->phydev); + mdio_unregister(priv->bus); + mdio_free(priv->bus); + + if (dm_gpio_is_valid(&priv->reset_gpio)) + dm_gpio_free(udev, &priv->reset_gpio); + + unmap_physmem(priv->iobase, MAP_NOCACHE); + + return 0; +} + +static const struct eth_ops sh_ether_ops = { + .start = sh_ether_start, + .send = sh_ether_send, + .recv = sh_ether_recv, + .free_pkt = sh_ether_free_pkt, + .stop = sh_ether_stop, + .write_hwaddr = sh_ether_write_hwaddr, +}; + +int sh_ether_ofdata_to_platdata(struct udevice *dev) +{ + struct eth_pdata *pdata = dev_get_platdata(dev); + const char *phy_mode; + const fdt32_t *cell; + int ret = 0; + + pdata->iobase = devfdt_get_addr(dev); + pdata->phy_interface = -1; + phy_mode = fdt_getprop(gd->fdt_blob, dev_of_offset(dev), "phy-mode", + NULL); + if (phy_mode) + pdata->phy_interface = phy_get_interface_by_name(phy_mode); + if (pdata->phy_interface == -1) { + debug("%s: Invalid PHY interface '%s'\n", __func__, phy_mode); + return -EINVAL; + } + + pdata->max_speed = 1000; + cell = fdt_getprop(gd->fdt_blob, dev_of_offset(dev), "max-speed", NULL); + if (cell) + pdata->max_speed = fdt32_to_cpu(*cell); + + sprintf(bb_miiphy_buses[0].name, dev->name); + + return ret; +} + +static const struct udevice_id sh_ether_ids[] = { + { .compatible = "renesas,ether-r8a7791" }, + { } +}; + +U_BOOT_DRIVER(eth_sh_ether) = { + .name = "sh_ether", + .id = UCLASS_ETH, + .of_match = sh_ether_ids, + .ofdata_to_platdata = sh_ether_ofdata_to_platdata, + .probe = sh_ether_probe, + .remove = sh_ether_remove, + .ops = &sh_ether_ops, + .priv_auto_alloc_size = sizeof(struct sh_ether_priv), + .platdata_auto_alloc_size = sizeof(struct eth_pdata), + .flags = DM_FLAG_ALLOC_PRIV_DMA, +}; +#endif + /******* for bb_miiphy *******/ static int sh_eth_bb_init(struct bb_miiphy_bus *bus) { diff --git a/drivers/net/sh_eth.h b/drivers/net/sh_eth.h index a0dcfcae09..ea4aa105bc 100644 --- a/drivers/net/sh_eth.h +++ b/drivers/net/sh_eth.h @@ -302,8 +302,7 @@ static const u16 sh_eth_offset_fast_sh4[SH_ETH_MAX_REGISTER_OFFSET] = { #elif defined(CONFIG_R8A7740) #define SH_ETH_TYPE_GETHER #define BASE_IO_ADDR 0xE9A00000 -#elif defined(CONFIG_R8A7790) || defined(CONFIG_R8A7791) || \ - defined(CONFIG_R8A7793) || defined(CONFIG_R8A7794) +#elif defined(CONFIG_RCAR_GEN2) #define SH_ETH_TYPE_ETHER #define BASE_IO_ADDR 0xEE700200 #elif defined(CONFIG_R7S72100) @@ -514,8 +513,7 @@ enum FELIC_MODE_BIT { ECMR_PRM = 0x00000001, #ifdef CONFIG_CPU_SH7724 ECMR_RTM = 0x00000010, -#elif defined(CONFIG_R8A7790) || defined(CONFIG_R8A7791) || \ - defined(CONFIG_R8A7793) || defined(CONFIG_R8A7794) +#elif defined(CONFIG_RCAR_GEN2) ECMR_RTM = 0x00000004, #endif |