diff options
Diffstat (limited to 'drivers/net/designware.c')
| -rw-r--r-- | drivers/net/designware.c | 167 |
1 files changed, 151 insertions, 16 deletions
diff --git a/drivers/net/designware.c b/drivers/net/designware.c index 98e9c6dc7a..07281a6ce9 100644 --- a/drivers/net/designware.c +++ b/drivers/net/designware.c @@ -10,6 +10,7 @@ */ #include <common.h> +#include <dm.h> #include <errno.h> #include <miiphy.h> #include <malloc.h> @@ -18,6 +19,8 @@ #include <asm/io.h> #include "designware.h" +DECLARE_GLOBAL_DATA_PTR; + #if !defined(CONFIG_PHYLIB) # error "DesignWare Ether MAC requires PHYLIB - missing CONFIG_PHYLIB" #endif @@ -343,11 +346,11 @@ static int _dw_eth_send(struct dw_eth_dev *priv, void *packet, int length) return 0; } -static int _dw_eth_recv(struct dw_eth_dev *priv) +static int _dw_eth_recv(struct dw_eth_dev *priv, uchar **packetp) { u32 status, desc_num = priv->rx_currdescnum; struct dmamacdescr *desc_p = &priv->rx_mac_descrtable[desc_num]; - int length = 0; + int length = -EAGAIN; uint32_t desc_start = (uint32_t)desc_p; uint32_t desc_end = desc_start + roundup(sizeof(*desc_p), ARCH_DMA_MINALIGN); @@ -368,26 +371,35 @@ static int _dw_eth_recv(struct dw_eth_dev *priv) /* Invalidate received data */ data_end = data_start + roundup(length, ARCH_DMA_MINALIGN); invalidate_dcache_range(data_start, data_end); + *packetp = desc_p->dmamac_addr; + } - net_process_received_packet(desc_p->dmamac_addr, length); + return length; +} - /* - * Make the current descriptor valid again and go to - * the next one - */ - desc_p->txrx_status |= DESC_RXSTS_OWNBYDMA; +static int _dw_free_pkt(struct dw_eth_dev *priv) +{ + u32 desc_num = priv->rx_currdescnum; + struct dmamacdescr *desc_p = &priv->rx_mac_descrtable[desc_num]; + uint32_t desc_start = (uint32_t)desc_p; + uint32_t desc_end = desc_start + + roundup(sizeof(*desc_p), ARCH_DMA_MINALIGN); - /* Flush only status field - others weren't changed */ - flush_dcache_range(desc_start, desc_end); + /* + * Make the current descriptor valid again and go to + * the next one + */ + desc_p->txrx_status |= DESC_RXSTS_OWNBYDMA; - /* Test the wrap-around condition. */ - if (++desc_num >= CONFIG_RX_DESCR_NUM) - desc_num = 0; - } + /* Flush only status field - others weren't changed */ + flush_dcache_range(desc_start, desc_end); + /* Test the wrap-around condition. */ + if (++desc_num >= CONFIG_RX_DESCR_NUM) + desc_num = 0; priv->rx_currdescnum = desc_num; - return length; + return 0; } static int dw_phy_init(struct dw_eth_dev *priv, void *dev) @@ -414,6 +426,7 @@ static int dw_phy_init(struct dw_eth_dev *priv, void *dev) return 0; } +#ifndef CONFIG_DM_ETH static int dw_eth_init(struct eth_device *dev, bd_t *bis) { return _dw_eth_init(dev->priv, dev->enetaddr); @@ -426,7 +439,17 @@ static int dw_eth_send(struct eth_device *dev, void *packet, int length) static int dw_eth_recv(struct eth_device *dev) { - return _dw_eth_recv(dev->priv); + uchar *packet; + int length; + + length = _dw_eth_recv(dev->priv, &packet); + if (length == -EAGAIN) + return 0; + net_process_received_packet(packet, length); + + _dw_free_pkt(dev->priv); + + return 0; } static void dw_eth_halt(struct eth_device *dev) @@ -486,3 +509,115 @@ int designware_initialize(ulong base_addr, u32 interface) return dw_phy_init(priv, dev); } +#endif + +#ifdef CONFIG_DM_ETH +static int designware_eth_start(struct udevice *dev) +{ + struct eth_pdata *pdata = dev_get_platdata(dev); + + return _dw_eth_init(dev->priv, pdata->enetaddr); +} + +static int designware_eth_send(struct udevice *dev, void *packet, int length) +{ + struct dw_eth_dev *priv = dev_get_priv(dev); + + return _dw_eth_send(priv, packet, length); +} + +static int designware_eth_recv(struct udevice *dev, uchar **packetp) +{ + struct dw_eth_dev *priv = dev_get_priv(dev); + + return _dw_eth_recv(priv, packetp); +} + +static int designware_eth_free_pkt(struct udevice *dev, uchar *packet, + int length) +{ + struct dw_eth_dev *priv = dev_get_priv(dev); + + return _dw_free_pkt(priv); +} + +static void designware_eth_stop(struct udevice *dev) +{ + struct dw_eth_dev *priv = dev_get_priv(dev); + + return _dw_eth_halt(priv); +} + +static int designware_eth_write_hwaddr(struct udevice *dev) +{ + struct eth_pdata *pdata = dev_get_platdata(dev); + struct dw_eth_dev *priv = dev_get_priv(dev); + + return _dw_write_hwaddr(priv, pdata->enetaddr); +} + +static int designware_eth_probe(struct udevice *dev) +{ + struct eth_pdata *pdata = dev_get_platdata(dev); + struct dw_eth_dev *priv = dev_get_priv(dev); + int ret; + + debug("%s, iobase=%lx, priv=%p\n", __func__, pdata->iobase, priv); + priv->mac_regs_p = (struct eth_mac_regs *)pdata->iobase; + priv->dma_regs_p = (struct eth_dma_regs *)(pdata->iobase + + DW_DMA_BASE_OFFSET); + priv->interface = pdata->phy_interface; + + dw_mdio_init(dev->name, priv->mac_regs_p); + priv->bus = miiphy_get_dev_by_name(dev->name); + + ret = dw_phy_init(priv, dev); + debug("%s, ret=%d\n", __func__, ret); + + return ret; +} + +static const struct eth_ops designware_eth_ops = { + .start = designware_eth_start, + .send = designware_eth_send, + .recv = designware_eth_recv, + .free_pkt = designware_eth_free_pkt, + .stop = designware_eth_stop, + .write_hwaddr = designware_eth_write_hwaddr, +}; + +static int designware_eth_ofdata_to_platdata(struct udevice *dev) +{ + struct eth_pdata *pdata = dev_get_platdata(dev); + const char *phy_mode; + + pdata->iobase = dev_get_addr(dev); + pdata->phy_interface = -1; + phy_mode = fdt_getprop(gd->fdt_blob, dev->of_offset, "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; + } + + return 0; +} + +static const struct udevice_id designware_eth_ids[] = { + { .compatible = "allwinner,sun7i-a20-gmac" }, + { } +}; + +U_BOOT_DRIVER(eth_sandbox) = { + .name = "eth_designware", + .id = UCLASS_ETH, + .of_match = designware_eth_ids, + .ofdata_to_platdata = designware_eth_ofdata_to_platdata, + .probe = designware_eth_probe, + .ops = &designware_eth_ops, + .priv_auto_alloc_size = sizeof(struct dw_eth_dev), + .platdata_auto_alloc_size = sizeof(struct eth_pdata), + .flags = DM_FLAG_ALLOC_PRIV_DMA, +}; +#endif |
