+// SPDX-License-Identifier: GPL-2.0+
/*
* Faraday FTGMAC100 Ethernet
*
* (C) Copyright 2010 Andes Technology
* Macpaul Lin <macpaul@andestech.com>
*
- * SPDX-License-Identifier: GPL-2.0+
+ * Copyright (C) 2018, IBM Corporation.
*/
-#include <config.h>
#include <common.h>
+#include <clk.h>
+#include <cpu_func.h>
+#include <dm.h>
+#include <log.h>
#include <malloc.h>
+#include <miiphy.h>
#include <net.h>
-#include <asm/io.h>
-#include <asm/dma-mapping.h>
-#include <linux/mii.h>
+#include <wait_bit.h>
+#include <asm/cache.h>
+#include <dm/device_compat.h>
+#include <linux/bitops.h>
+#include <linux/io.h>
+#include <linux/iopoll.h>
#include "ftgmac100.h"
-#define ETH_ZLEN 60
-#define CFG_XBUF_SIZE 1536
+/* Min frame ethernet frame size without FCS */
+#define ETH_ZLEN 60
-/* RBSR - hw default init value is also 0x640 */
-#define RBSR_DEFAULT_VALUE 0x640
+/* Receive Buffer Size Register - HW default is 0x640 */
+#define FTGMAC100_RBSR_DEFAULT 0x640
/* PKTBUFSTX/PKTBUFSRX must both be power of 2 */
#define PKTBUFSTX 4 /* must be power of 2 */
+/* Timeout for transmit */
+#define FTGMAC100_TX_TIMEOUT_MS 1000
+
+/* Timeout for a mdio read/write operation */
+#define FTGMAC100_MDIO_TIMEOUT_USEC 10000
+
+/*
+ * MDC clock cycle threshold
+ *
+ * 20us * 100 = 2ms > (1 / 2.5Mhz) * 0x34
+ */
+#define MDC_CYCTHR 0x34
+
+/*
+ * ftgmac100 model variants
+ */
+enum ftgmac100_model {
+ FTGMAC100_MODEL_FARADAY,
+ FTGMAC100_MODEL_ASPEED,
+};
+
+/**
+ * struct ftgmac100_data - private data for the FTGMAC100 driver
+ *
+ * @iobase: The base address of the hardware registers
+ * @txdes: The array of transmit descriptors
+ * @rxdes: The array of receive descriptors
+ * @tx_index: Transmit descriptor index in @txdes
+ * @rx_index: Receive descriptor index in @rxdes
+ * @phy_addr: The PHY interface address to use
+ * @phydev: The PHY device backing the MAC
+ * @bus: The mdio bus
+ * @phy_mode: The mode of the PHY interface (rgmii, rmii, ...)
+ * @max_speed: Maximum speed of Ethernet connection supported by MAC
+ * @clks: The bulk of clocks assigned to the device in the DT
+ * @rxdes0_edorr_mask: The bit number identifying the end of the RX ring buffer
+ * @txdes0_edotr_mask: The bit number identifying the end of the TX ring buffer
+ */
struct ftgmac100_data {
- ulong txdes_dma;
- struct ftgmac100_txdes *txdes;
- ulong rxdes_dma;
- struct ftgmac100_rxdes *rxdes;
+ struct ftgmac100 *iobase;
+
+ struct ftgmac100_txdes txdes[PKTBUFSTX] __aligned(ARCH_DMA_MINALIGN);
+ struct ftgmac100_rxdes rxdes[PKTBUFSRX] __aligned(ARCH_DMA_MINALIGN);
int tx_index;
int rx_index;
- int phy_addr;
+
+ u32 phy_addr;
+ struct phy_device *phydev;
+ struct mii_dev *bus;
+ u32 phy_mode;
+ u32 max_speed;
+
+ struct clk_bulk clks;
+
+ /* End of RX/TX ring buffer bits. Depend on model */
+ u32 rxdes0_edorr_mask;
+ u32 txdes0_edotr_mask;
};
/*
* struct mii_bus functions
*/
-static int ftgmac100_mdiobus_read(struct eth_device *dev, int phy_addr,
- int regnum)
+static int ftgmac100_mdio_read(struct mii_dev *bus, int phy_addr, int dev_addr,
+ int reg_addr)
{
- struct ftgmac100 *ftgmac100 = (struct ftgmac100 *)dev->iobase;
+ struct ftgmac100_data *priv = bus->priv;
+ struct ftgmac100 *ftgmac100 = priv->iobase;
int phycr;
- int i;
-
- phycr = readl(&ftgmac100->phycr);
-
- /* preserve MDC cycle threshold */
- phycr &= FTGMAC100_PHYCR_MDC_CYCTHR_MASK;
-
- phycr |= FTGMAC100_PHYCR_PHYAD(phy_addr)
- | FTGMAC100_PHYCR_REGAD(regnum)
- | FTGMAC100_PHYCR_MIIRD;
+ int data;
+ int ret;
+ phycr = FTGMAC100_PHYCR_MDC_CYCTHR(MDC_CYCTHR) |
+ FTGMAC100_PHYCR_PHYAD(phy_addr) |
+ FTGMAC100_PHYCR_REGAD(reg_addr) |
+ FTGMAC100_PHYCR_MIIRD;
writel(phycr, &ftgmac100->phycr);
- for (i = 0; i < 10; i++) {
- phycr = readl(&ftgmac100->phycr);
-
- if ((phycr & FTGMAC100_PHYCR_MIIRD) == 0) {
- int data;
-
- data = readl(&ftgmac100->phydata);
- return FTGMAC100_PHYDATA_MIIRDATA(data);
- }
-
- mdelay(10);
+ ret = readl_poll_timeout(&ftgmac100->phycr, phycr,
+ !(phycr & FTGMAC100_PHYCR_MIIRD),
+ FTGMAC100_MDIO_TIMEOUT_USEC);
+ if (ret) {
+ pr_err("%s: mdio read failed (phy:%d reg:%x)\n",
+ priv->phydev->dev->name, phy_addr, reg_addr);
+ return ret;
}
- debug("mdio read timed out\n");
- return -1;
+ data = readl(&ftgmac100->phydata);
+
+ return FTGMAC100_PHYDATA_MIIRDATA(data);
}
-static int ftgmac100_mdiobus_write(struct eth_device *dev, int phy_addr,
- int regnum, u16 value)
+static int ftgmac100_mdio_write(struct mii_dev *bus, int phy_addr, int dev_addr,
+ int reg_addr, u16 value)
{
- struct ftgmac100 *ftgmac100 = (struct ftgmac100 *)dev->iobase;
+ struct ftgmac100_data *priv = bus->priv;
+ struct ftgmac100 *ftgmac100 = priv->iobase;
int phycr;
int data;
- int i;
-
- phycr = readl(&ftgmac100->phycr);
-
- /* preserve MDC cycle threshold */
- phycr &= FTGMAC100_PHYCR_MDC_CYCTHR_MASK;
-
- phycr |= FTGMAC100_PHYCR_PHYAD(phy_addr)
- | FTGMAC100_PHYCR_REGAD(regnum)
- | FTGMAC100_PHYCR_MIIWR;
+ int ret;
+ phycr = FTGMAC100_PHYCR_MDC_CYCTHR(MDC_CYCTHR) |
+ FTGMAC100_PHYCR_PHYAD(phy_addr) |
+ FTGMAC100_PHYCR_REGAD(reg_addr) |
+ FTGMAC100_PHYCR_MIIWR;
data = FTGMAC100_PHYDATA_MIIWDATA(value);
writel(data, &ftgmac100->phydata);
writel(phycr, &ftgmac100->phycr);
- for (i = 0; i < 10; i++) {
- phycr = readl(&ftgmac100->phycr);
-
- if ((phycr & FTGMAC100_PHYCR_MIIWR) == 0) {
- debug("(phycr & FTGMAC100_PHYCR_MIIWR) == 0: " \
- "phy_addr: %x\n", phy_addr);
- return 0;
- }
-
- mdelay(1);
+ ret = readl_poll_timeout(&ftgmac100->phycr, phycr,
+ !(phycr & FTGMAC100_PHYCR_MIIWR),
+ FTGMAC100_MDIO_TIMEOUT_USEC);
+ if (ret) {
+ pr_err("%s: mdio write failed (phy:%d reg:%x)\n",
+ priv->phydev->dev->name, phy_addr, reg_addr);
}
- debug("mdio write timed out\n");
- return -1;
-}
-
-int ftgmac100_phy_read(struct eth_device *dev, int addr, int reg, u16 *value)
-{
- *value = ftgmac100_mdiobus_read(dev , addr, reg);
-
- if (*value == -1)
- return -1;
-
- return 0;
-}
-
-int ftgmac100_phy_write(struct eth_device *dev, int addr, int reg, u16 value)
-{
- if (ftgmac100_mdiobus_write(dev, addr, reg, value) == -1)
- return -1;
-
- return 0;
+ return ret;
}
-static int ftgmac100_phy_reset(struct eth_device *dev)
+static int ftgmac100_mdio_init(struct udevice *dev)
{
- struct ftgmac100_data *priv = dev->priv;
- int i;
- u16 status, adv;
-
- adv = ADVERTISE_CSMA | ADVERTISE_ALL;
-
- ftgmac100_phy_write(dev, priv->phy_addr, MII_ADVERTISE, adv);
-
- printf("%s: Starting autonegotiation...\n", dev->name);
-
- ftgmac100_phy_write(dev, priv->phy_addr,
- MII_BMCR, (BMCR_ANENABLE | BMCR_ANRESTART));
-
- for (i = 0; i < 100000 / 100; i++) {
- ftgmac100_phy_read(dev, priv->phy_addr, MII_BMSR, &status);
-
- if (status & BMSR_ANEGCOMPLETE)
- break;
- mdelay(1);
+ struct ftgmac100_data *priv = dev_get_priv(dev);
+ struct mii_dev *bus;
+ int ret;
+
+ bus = mdio_alloc();
+ if (!bus)
+ return -ENOMEM;
+
+ bus->read = ftgmac100_mdio_read;
+ bus->write = ftgmac100_mdio_write;
+ bus->priv = priv;
+
+ ret = mdio_register_seq(bus, dev->seq);
+ if (ret) {
+ free(bus);
+ return ret;
}
- if (status & BMSR_ANEGCOMPLETE) {
- printf("%s: Autonegotiation complete\n", dev->name);
- } else {
- printf("%s: Autonegotiation timed out (status=0x%04x)\n",
- dev->name, status);
- return 0;
- }
+ priv->bus = bus;
- return 1;
+ return 0;
}
-static int ftgmac100_phy_init(struct eth_device *dev)
+static int ftgmac100_phy_adjust_link(struct ftgmac100_data *priv)
{
- struct ftgmac100_data *priv = dev->priv;
-
- int phy_addr;
- u16 phy_id, status, adv, lpa, stat_ge;
- int media, speed, duplex;
- int i;
+ struct ftgmac100 *ftgmac100 = priv->iobase;
+ struct phy_device *phydev = priv->phydev;
+ u32 maccr;
- /* Check if the PHY is up to snuff... */
- for (phy_addr = 0; phy_addr < CONFIG_PHY_MAX_ADDR; phy_addr++) {
-
- ftgmac100_phy_read(dev, phy_addr, MII_PHYSID1, &phy_id);
-
- /*
- * When it is unable to found PHY,
- * the interface usually return 0xffff or 0x0000
- */
- if (phy_id != 0xffff && phy_id != 0x0) {
- printf("%s: found PHY at 0x%02x\n",
- dev->name, phy_addr);
- priv->phy_addr = phy_addr;
- break;
- }
+ if (!phydev->link) {
+ dev_err(phydev->dev, "No link\n");
+ return -EREMOTEIO;
}
- if (phy_id == 0xffff || phy_id == 0x0) {
- printf("%s: no PHY present\n", dev->name);
- return 0;
- }
-
- ftgmac100_phy_read(dev, priv->phy_addr, MII_BMSR, &status);
-
- if (!(status & BMSR_LSTATUS)) {
- /* Try to re-negotiate if we don't have link already. */
- ftgmac100_phy_reset(dev);
-
- for (i = 0; i < 100000 / 100; i++) {
- ftgmac100_phy_read(dev, priv->phy_addr,
- MII_BMSR, &status);
- if (status & BMSR_LSTATUS)
- break;
- udelay(100);
- }
- }
-
- if (!(status & BMSR_LSTATUS)) {
- printf("%s: link down\n", dev->name);
- return 0;
- }
-
-#ifdef CONFIG_FTGMAC100_EGIGA
- /* 1000 Base-T Status Register */
- ftgmac100_phy_read(dev, priv->phy_addr,
- MII_STAT1000, &stat_ge);
-
- speed = (stat_ge & (LPA_1000FULL | LPA_1000HALF)
- ? 1 : 0);
-
- duplex = ((stat_ge & LPA_1000FULL)
- ? 1 : 0);
-
- if (speed) { /* Speed is 1000 */
- printf("%s: link up, 1000bps %s-duplex\n",
- dev->name, duplex ? "full" : "half");
- return 0;
- }
-#endif
-
- ftgmac100_phy_read(dev, priv->phy_addr, MII_ADVERTISE, &adv);
- ftgmac100_phy_read(dev, priv->phy_addr, MII_LPA, &lpa);
-
- media = mii_nway_result(lpa & adv);
- speed = (media & (ADVERTISE_100FULL | ADVERTISE_100HALF) ? 1 : 0);
- duplex = (media & ADVERTISE_FULL) ? 1 : 0;
-
- printf("%s: link up, %sMbps %s-duplex\n",
- dev->name, speed ? "100" : "10", duplex ? "full" : "half");
-
- return 1;
-}
-
-static int ftgmac100_update_link_speed(struct eth_device *dev)
-{
- struct ftgmac100 *ftgmac100 = (struct ftgmac100 *)dev->iobase;
- struct ftgmac100_data *priv = dev->priv;
-
- unsigned short stat_fe;
- unsigned short stat_ge;
- unsigned int maccr;
-
-#ifdef CONFIG_FTGMAC100_EGIGA
- /* 1000 Base-T Status Register */
- ftgmac100_phy_read(dev, priv->phy_addr, MII_STAT1000, &stat_ge);
-#endif
-
- ftgmac100_phy_read(dev, priv->phy_addr, MII_BMSR, &stat_fe);
-
- if (!(stat_fe & BMSR_LSTATUS)) /* link status up? */
- return 0;
-
/* read MAC control register and clear related bits */
maccr = readl(&ftgmac100->maccr) &
~(FTGMAC100_MACCR_GIGA_MODE |
FTGMAC100_MACCR_FAST_MODE |
FTGMAC100_MACCR_FULLDUP);
-#ifdef CONFIG_FTGMAC100_EGIGA
- if (stat_ge & LPA_1000FULL) {
- /* set gmac for 1000BaseTX and Full Duplex */
- maccr |= FTGMAC100_MACCR_GIGA_MODE | FTGMAC100_MACCR_FULLDUP;
- }
-
- if (stat_ge & LPA_1000HALF) {
- /* set gmac for 1000BaseTX and Half Duplex */
+ if (phy_interface_is_rgmii(phydev) && phydev->speed == 1000)
maccr |= FTGMAC100_MACCR_GIGA_MODE;
- }
-#endif
-
- if (stat_fe & BMSR_100FULL) {
- /* set MII for 100BaseTX and Full Duplex */
- maccr |= FTGMAC100_MACCR_FAST_MODE | FTGMAC100_MACCR_FULLDUP;
- }
- if (stat_fe & BMSR_10FULL) {
- /* set MII for 10BaseT and Full Duplex */
- maccr |= FTGMAC100_MACCR_FULLDUP;
- }
-
- if (stat_fe & BMSR_100HALF) {
- /* set MII for 100BaseTX and Half Duplex */
+ if (phydev->speed == 100)
maccr |= FTGMAC100_MACCR_FAST_MODE;
- }
- if (stat_fe & BMSR_10HALF) {
- /* set MII for 10BaseT and Half Duplex */
- /* we have already clear these bits, do nothing */
- ;
- }
+ if (phydev->duplex)
+ maccr |= FTGMAC100_MACCR_FULLDUP;
/* update MII config into maccr */
writel(maccr, &ftgmac100->maccr);
- return 1;
+ return 0;
+}
+
+static int ftgmac100_phy_init(struct udevice *dev)
+{
+ struct ftgmac100_data *priv = dev_get_priv(dev);
+ struct phy_device *phydev;
+ int ret;
+
+ phydev = phy_connect(priv->bus, priv->phy_addr, dev, priv->phy_mode);
+ if (!phydev)
+ return -ENODEV;
+
+ phydev->supported &= PHY_GBIT_FEATURES;
+ if (priv->max_speed) {
+ ret = phy_set_supported(phydev, priv->max_speed);
+ if (ret)
+ return ret;
+ }
+ phydev->advertising = phydev->supported;
+ priv->phydev = phydev;
+ phy_config(phydev);
+
+ return 0;
}
/*
* Reset MAC
*/
-static void ftgmac100_reset(struct eth_device *dev)
+static void ftgmac100_reset(struct ftgmac100_data *priv)
{
- struct ftgmac100 *ftgmac100 = (struct ftgmac100 *)dev->iobase;
+ struct ftgmac100 *ftgmac100 = priv->iobase;
debug("%s()\n", __func__);
- writel(FTGMAC100_MACCR_SW_RST, &ftgmac100->maccr);
+ setbits_le32(&ftgmac100->maccr, FTGMAC100_MACCR_SW_RST);
while (readl(&ftgmac100->maccr) & FTGMAC100_MACCR_SW_RST)
;
/*
* Set MAC address
*/
-static void ftgmac100_set_mac(struct eth_device *dev,
- const unsigned char *mac)
+static int ftgmac100_set_mac(struct ftgmac100_data *priv,
+ const unsigned char *mac)
{
- struct ftgmac100 *ftgmac100 = (struct ftgmac100 *)dev->iobase;
+ struct ftgmac100 *ftgmac100 = priv->iobase;
unsigned int maddr = mac[0] << 8 | mac[1];
unsigned int laddr = mac[2] << 24 | mac[3] << 16 | mac[4] << 8 | mac[5];
writel(maddr, &ftgmac100->mac_madr);
writel(laddr, &ftgmac100->mac_ladr);
-}
-
-static void ftgmac100_set_mac_from_env(struct eth_device *dev)
-{
- eth_getenv_enetaddr("ethaddr", dev->enetaddr);
- ftgmac100_set_mac(dev, dev->enetaddr);
+ return 0;
}
/*
* disable transmitter, receiver
*/
-static void ftgmac100_halt(struct eth_device *dev)
+static void ftgmac100_stop(struct udevice *dev)
{
- struct ftgmac100 *ftgmac100 = (struct ftgmac100 *)dev->iobase;
+ struct ftgmac100_data *priv = dev_get_priv(dev);
+ struct ftgmac100 *ftgmac100 = priv->iobase;
debug("%s()\n", __func__);
writel(0, &ftgmac100->maccr);
+
+ phy_shutdown(priv->phydev);
}
-static int ftgmac100_init(struct eth_device *dev, bd_t *bd)
+static int ftgmac100_start(struct udevice *dev)
{
- struct ftgmac100 *ftgmac100 = (struct ftgmac100 *)dev->iobase;
- struct ftgmac100_data *priv = dev->priv;
- struct ftgmac100_txdes *txdes;
- struct ftgmac100_rxdes *rxdes;
+ struct eth_pdata *plat = dev_get_platdata(dev);
+ struct ftgmac100_data *priv = dev_get_priv(dev);
+ struct ftgmac100 *ftgmac100 = priv->iobase;
+ struct phy_device *phydev = priv->phydev;
unsigned int maccr;
- void *buf;
+ ulong start, end;
+ int ret;
int i;
debug("%s()\n", __func__);
- if (!priv->txdes) {
- txdes = dma_alloc_coherent(
- sizeof(*txdes) * PKTBUFSTX, &priv->txdes_dma);
- if (!txdes)
- panic("ftgmac100: out of memory\n");
- memset(txdes, 0, sizeof(*txdes) * PKTBUFSTX);
- priv->txdes = txdes;
- }
- txdes = priv->txdes;
-
- if (!priv->rxdes) {
- rxdes = dma_alloc_coherent(
- sizeof(*rxdes) * PKTBUFSRX, &priv->rxdes_dma);
- if (!rxdes)
- panic("ftgmac100: out of memory\n");
- memset(rxdes, 0, sizeof(*rxdes) * PKTBUFSRX);
- priv->rxdes = rxdes;
- }
- rxdes = priv->rxdes;
+ ftgmac100_reset(priv);
/* set the ethernet address */
- ftgmac100_set_mac_from_env(dev);
+ ftgmac100_set_mac(priv, plat->enetaddr);
/* disable all interrupts */
writel(0, &ftgmac100->ier);
priv->tx_index = 0;
priv->rx_index = 0;
- txdes[PKTBUFSTX - 1].txdes0 = FTGMAC100_TXDES0_EDOTR;
- rxdes[PKTBUFSRX - 1].rxdes0 = FTGMAC100_RXDES0_EDORR;
-
for (i = 0; i < PKTBUFSTX; i++) {
- /* TXBUF_BADR */
- if (!txdes[i].txdes2) {
- buf = memalign(ARCH_DMA_MINALIGN, CFG_XBUF_SIZE);
- if (!buf)
- panic("ftgmac100: out of memory\n");
- txdes[i].txdes3 = virt_to_phys(buf);
- txdes[i].txdes2 = (uint)buf;
- }
- txdes[i].txdes1 = 0;
+ priv->txdes[i].txdes3 = 0;
+ priv->txdes[i].txdes0 = 0;
}
+ priv->txdes[PKTBUFSTX - 1].txdes0 = priv->txdes0_edotr_mask;
+
+ start = ((ulong)&priv->txdes[0]) & ~(ARCH_DMA_MINALIGN - 1);
+ end = start + roundup(sizeof(priv->txdes), ARCH_DMA_MINALIGN);
+ flush_dcache_range(start, end);
for (i = 0; i < PKTBUFSRX; i++) {
- /* RXBUF_BADR */
- if (!rxdes[i].rxdes2) {
- buf = NetRxPackets[i];
- rxdes[i].rxdes3 = virt_to_phys(buf);
- rxdes[i].rxdes2 = (uint)buf;
- }
- rxdes[i].rxdes0 &= ~FTGMAC100_RXDES0_RXPKT_RDY;
+ priv->rxdes[i].rxdes3 = (unsigned int)net_rx_packets[i];
+ priv->rxdes[i].rxdes0 = 0;
}
+ priv->rxdes[PKTBUFSRX - 1].rxdes0 = priv->rxdes0_edorr_mask;
+
+ start = ((ulong)&priv->rxdes[0]) & ~(ARCH_DMA_MINALIGN - 1);
+ end = start + roundup(sizeof(priv->rxdes), ARCH_DMA_MINALIGN);
+ flush_dcache_range(start, end);
/* transmit ring */
- writel(priv->txdes_dma, &ftgmac100->txr_badr);
+ writel((u32)priv->txdes, &ftgmac100->txr_badr);
/* receive ring */
- writel(priv->rxdes_dma, &ftgmac100->rxr_badr);
+ writel((u32)priv->rxdes, &ftgmac100->rxr_badr);
/* poll receive descriptor automatically */
writel(FTGMAC100_APTC_RXPOLL_CNT(1), &ftgmac100->aptc);
/* config receive buffer size register */
- writel(FTGMAC100_RBSR_SIZE(RBSR_DEFAULT_VALUE), &ftgmac100->rbsr);
+ writel(FTGMAC100_RBSR_SIZE(FTGMAC100_RBSR_DEFAULT), &ftgmac100->rbsr);
/* enable transmitter, receiver */
maccr = FTGMAC100_MACCR_TXMAC_EN |
writel(maccr, &ftgmac100->maccr);
- if (!ftgmac100_phy_init(dev)) {
- if (!ftgmac100_update_link_speed(dev))
- return -1;
+ ret = phy_startup(phydev);
+ if (ret) {
+ dev_err(phydev->dev, "Could not start PHY\n");
+ return ret;
}
+ ret = ftgmac100_phy_adjust_link(priv);
+ if (ret) {
+ dev_err(phydev->dev, "Could not adjust link\n");
+ return ret;
+ }
+
+ printf("%s: link up, %d Mbps %s-duplex mac:%pM\n", phydev->dev->name,
+ phydev->speed, phydev->duplex ? "full" : "half", plat->enetaddr);
+
+ return 0;
+}
+
+static int ftgmac100_free_pkt(struct udevice *dev, uchar *packet, int length)
+{
+ struct ftgmac100_data *priv = dev_get_priv(dev);
+ struct ftgmac100_rxdes *curr_des = &priv->rxdes[priv->rx_index];
+ ulong des_start = ((ulong)curr_des) & ~(ARCH_DMA_MINALIGN - 1);
+ ulong des_end = des_start +
+ roundup(sizeof(*curr_des), ARCH_DMA_MINALIGN);
+
+ /* Release buffer to DMA and flush descriptor */
+ curr_des->rxdes0 &= ~FTGMAC100_RXDES0_RXPKT_RDY;
+ flush_dcache_range(des_start, des_end);
+
+ /* Move to next descriptor */
+ priv->rx_index = (priv->rx_index + 1) % PKTBUFSRX;
+
return 0;
}
/*
* Get a data block via Ethernet
*/
-static int ftgmac100_recv(struct eth_device *dev)
+static int ftgmac100_recv(struct udevice *dev, int flags, uchar **packetp)
{
- struct ftgmac100_data *priv = dev->priv;
- struct ftgmac100_rxdes *curr_des;
+ struct ftgmac100_data *priv = dev_get_priv(dev);
+ struct ftgmac100_rxdes *curr_des = &priv->rxdes[priv->rx_index];
unsigned short rxlen;
+ ulong des_start = ((ulong)curr_des) & ~(ARCH_DMA_MINALIGN - 1);
+ ulong des_end = des_start +
+ roundup(sizeof(*curr_des), ARCH_DMA_MINALIGN);
+ ulong data_start = curr_des->rxdes3;
+ ulong data_end;
- curr_des = &priv->rxdes[priv->rx_index];
+ invalidate_dcache_range(des_start, des_end);
if (!(curr_des->rxdes0 & FTGMAC100_RXDES0_RXPKT_RDY))
- return -1;
+ return -EAGAIN;
if (curr_des->rxdes0 & (FTGMAC100_RXDES0_RX_ERR |
FTGMAC100_RXDES0_CRC_ERR |
FTGMAC100_RXDES0_FTL |
FTGMAC100_RXDES0_RUNT |
FTGMAC100_RXDES0_RX_ODD_NB)) {
- return -1;
+ return -EAGAIN;
}
rxlen = FTGMAC100_RXDES0_VDBC(curr_des->rxdes0);
debug("%s(): RX buffer %d, %x received\n",
__func__, priv->rx_index, rxlen);
- /* invalidate d-cache */
- dma_map_single((void *)curr_des->rxdes2, rxlen, DMA_FROM_DEVICE);
+ /* Invalidate received data */
+ data_end = data_start + roundup(rxlen, ARCH_DMA_MINALIGN);
+ invalidate_dcache_range(data_start, data_end);
+ *packetp = (uchar *)data_start;
- /* pass the packet up to the protocol layers. */
- NetReceive((void *)curr_des->rxdes2, rxlen);
+ return rxlen;
+}
- /* release buffer to DMA */
- curr_des->rxdes0 &= ~FTGMAC100_RXDES0_RXPKT_RDY;
+static u32 ftgmac100_read_txdesc(const void *desc)
+{
+ const struct ftgmac100_txdes *txdes = desc;
+ ulong des_start = ((ulong)txdes) & ~(ARCH_DMA_MINALIGN - 1);
+ ulong des_end = des_start + roundup(sizeof(*txdes), ARCH_DMA_MINALIGN);
- priv->rx_index = (priv->rx_index + 1) % PKTBUFSRX;
+ invalidate_dcache_range(des_start, des_end);
- return 0;
+ return txdes->txdes0;
}
+BUILD_WAIT_FOR_BIT(ftgmac100_txdone, u32, ftgmac100_read_txdesc)
+
/*
* Send a data block via Ethernet
*/
-static int ftgmac100_send(struct eth_device *dev, void *packet, int length)
+static int ftgmac100_send(struct udevice *dev, void *packet, int length)
{
- struct ftgmac100 *ftgmac100 = (struct ftgmac100 *)dev->iobase;
- struct ftgmac100_data *priv = dev->priv;
+ struct ftgmac100_data *priv = dev_get_priv(dev);
+ struct ftgmac100 *ftgmac100 = priv->iobase;
struct ftgmac100_txdes *curr_des = &priv->txdes[priv->tx_index];
+ ulong des_start = ((ulong)curr_des) & ~(ARCH_DMA_MINALIGN - 1);
+ ulong des_end = des_start +
+ roundup(sizeof(*curr_des), ARCH_DMA_MINALIGN);
+ ulong data_start;
+ ulong data_end;
+ int rc;
+
+ invalidate_dcache_range(des_start, des_end);
if (curr_des->txdes0 & FTGMAC100_TXDES0_TXDMA_OWN) {
- debug("%s(): no TX descriptor available\n", __func__);
- return -1;
+ dev_err(dev, "no TX descriptor available\n");
+ return -EPERM;
}
debug("%s(%x, %x)\n", __func__, (int)packet, length);
length = (length < ETH_ZLEN) ? ETH_ZLEN : length;
- memcpy((void *)curr_des->txdes2, (void *)packet, length);
- dma_map_single((void *)curr_des->txdes2, length, DMA_TO_DEVICE);
+ curr_des->txdes3 = (unsigned int)packet;
- /* only one descriptor on TXBUF */
- curr_des->txdes0 &= FTGMAC100_TXDES0_EDOTR;
+ /* Flush data to be sent */
+ data_start = curr_des->txdes3;
+ data_end = data_start + roundup(length, ARCH_DMA_MINALIGN);
+ flush_dcache_range(data_start, data_end);
+
+ /* Only one segment on TXBUF */
+ curr_des->txdes0 &= priv->txdes0_edotr_mask;
curr_des->txdes0 |= FTGMAC100_TXDES0_FTS |
FTGMAC100_TXDES0_LTS |
FTGMAC100_TXDES0_TXBUF_SIZE(length) |
FTGMAC100_TXDES0_TXDMA_OWN ;
- /* start transmit */
+ /* Flush modified buffer descriptor */
+ flush_dcache_range(des_start, des_end);
+
+ /* Start transmit */
writel(1, &ftgmac100->txpd);
+ rc = wait_for_bit_ftgmac100_txdone(curr_des,
+ FTGMAC100_TXDES0_TXDMA_OWN, false,
+ FTGMAC100_TX_TIMEOUT_MS, true);
+ if (rc)
+ return rc;
+
debug("%s(): packet sent\n", __func__);
+ /* Move to next descriptor */
priv->tx_index = (priv->tx_index + 1) % PKTBUFSTX;
return 0;
}
-int ftgmac100_initialize(bd_t *bd)
+static int ftgmac100_write_hwaddr(struct udevice *dev)
{
- struct eth_device *dev;
- struct ftgmac100_data *priv;
+ struct eth_pdata *pdata = dev_get_platdata(dev);
+ struct ftgmac100_data *priv = dev_get_priv(dev);
- dev = malloc(sizeof *dev);
- if (!dev) {
- printf("%s(): failed to allocate dev\n", __func__);
- goto out;
+ return ftgmac100_set_mac(priv, pdata->enetaddr);
+}
+
+static int ftgmac100_ofdata_to_platdata(struct udevice *dev)
+{
+ struct eth_pdata *pdata = dev_get_platdata(dev);
+ struct ftgmac100_data *priv = dev_get_priv(dev);
+ const char *phy_mode;
+
+ pdata->iobase = devfdt_get_addr(dev);
+ pdata->phy_interface = -1;
+ phy_mode = dev_read_string(dev, "phy-mode");
+ if (phy_mode)
+ pdata->phy_interface = phy_get_interface_by_name(phy_mode);
+ if (pdata->phy_interface == -1) {
+ dev_err(dev, "Invalid PHY interface '%s'\n", phy_mode);
+ return -EINVAL;
}
- /* Transmit and receive descriptors should align to 16 bytes */
- priv = memalign(16, sizeof(struct ftgmac100_data));
- if (!priv) {
- printf("%s(): failed to allocate priv\n", __func__);
- goto free_dev;
+ pdata->max_speed = dev_read_u32_default(dev, "max-speed", 0);
+
+ if (dev_get_driver_data(dev) == FTGMAC100_MODEL_ASPEED) {
+ priv->rxdes0_edorr_mask = BIT(30);
+ priv->txdes0_edotr_mask = BIT(30);
+ } else {
+ priv->rxdes0_edorr_mask = BIT(15);
+ priv->txdes0_edotr_mask = BIT(15);
}
- memset(dev, 0, sizeof(*dev));
- memset(priv, 0, sizeof(*priv));
+ return clk_get_bulk(dev, &priv->clks);
+}
- sprintf(dev->name, "FTGMAC100");
- dev->iobase = CONFIG_FTGMAC100_BASE;
- dev->init = ftgmac100_init;
- dev->halt = ftgmac100_halt;
- dev->send = ftgmac100_send;
- dev->recv = ftgmac100_recv;
- dev->priv = priv;
+static int ftgmac100_probe(struct udevice *dev)
+{
+ struct eth_pdata *pdata = dev_get_platdata(dev);
+ struct ftgmac100_data *priv = dev_get_priv(dev);
+ int ret;
+
+ priv->iobase = (struct ftgmac100 *)pdata->iobase;
+ priv->phy_mode = pdata->phy_interface;
+ priv->max_speed = pdata->max_speed;
+ priv->phy_addr = 0;
- eth_register(dev);
+ ret = clk_enable_bulk(&priv->clks);
+ if (ret)
+ goto out;
- ftgmac100_reset(dev);
+ ret = ftgmac100_mdio_init(dev);
+ if (ret) {
+ dev_err(dev, "Failed to initialize mdiobus: %d\n", ret);
+ goto out;
+ }
- return 1;
+ ret = ftgmac100_phy_init(dev);
+ if (ret) {
+ dev_err(dev, "Failed to initialize PHY: %d\n", ret);
+ goto out;
+ }
-free_dev:
- free(dev);
out:
+ if (ret)
+ clk_release_bulk(&priv->clks);
+
+ return ret;
+}
+
+static int ftgmac100_remove(struct udevice *dev)
+{
+ struct ftgmac100_data *priv = dev_get_priv(dev);
+
+ free(priv->phydev);
+ mdio_unregister(priv->bus);
+ mdio_free(priv->bus);
+ clk_release_bulk(&priv->clks);
+
return 0;
}
+
+static const struct eth_ops ftgmac100_ops = {
+ .start = ftgmac100_start,
+ .send = ftgmac100_send,
+ .recv = ftgmac100_recv,
+ .stop = ftgmac100_stop,
+ .free_pkt = ftgmac100_free_pkt,
+ .write_hwaddr = ftgmac100_write_hwaddr,
+};
+
+static const struct udevice_id ftgmac100_ids[] = {
+ { .compatible = "faraday,ftgmac100", .data = FTGMAC100_MODEL_FARADAY },
+ { .compatible = "aspeed,ast2500-mac", .data = FTGMAC100_MODEL_ASPEED },
+ { }
+};
+
+U_BOOT_DRIVER(ftgmac100) = {
+ .name = "ftgmac100",
+ .id = UCLASS_ETH,
+ .of_match = ftgmac100_ids,
+ .ofdata_to_platdata = ftgmac100_ofdata_to_platdata,
+ .probe = ftgmac100_probe,
+ .remove = ftgmac100_remove,
+ .ops = &ftgmac100_ops,
+ .priv_auto_alloc_size = sizeof(struct ftgmac100_data),
+ .platdata_auto_alloc_size = sizeof(struct eth_pdata),
+ .flags = DM_FLAG_ALLOC_PRIV_DMA,
+};
projects / oweals / u-boot.git / blobdiff