*/
#include <common.h>
+#include <dm.h>
#include <malloc.h>
+#include <memalign.h>
+#include <miiphy.h>
#include <net.h>
#include <netdev.h>
-#include <miiphy.h>
#include "fec_mxc.h"
-#include <asm/arch/clock.h>
-#include <asm/arch/imx-regs.h>
#include <asm/io.h>
-#include <asm/errno.h>
+#include <linux/errno.h>
#include <linux/compiler.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/imx-regs.h>
+#include <asm/mach-imx/sys_proto.h>
+
DECLARE_GLOBAL_DATA_PTR;
/*
#undef DEBUG
-struct nbuf {
- uint8_t data[1500]; /**< actual data */
- int length; /**< actual length */
- int used; /**< buffer in use or not */
- uint8_t head[16]; /**< MAC header(6 + 6 + 2) + 2(aligned) */
-};
-
#ifdef CONFIG_FEC_MXC_SWAP_PACKET
static void swap_packet(uint32_t *packet, int length)
{
}
#endif
-/*
- * MII-interface related functions
- */
-static int fec_mdio_read(struct ethernet_regs *eth, uint8_t phyAddr,
- uint8_t regAddr)
+/* MII-interface related functions */
+static int fec_mdio_read(struct ethernet_regs *eth, uint8_t phyaddr,
+ uint8_t regaddr)
{
uint32_t reg; /* convenient holder for the PHY register */
uint32_t phy; /* convenient holder for the PHY */
* programming the FEC's MII data register.
*/
writel(FEC_IEVENT_MII, ð->ievent);
- reg = regAddr << FEC_MII_DATA_RA_SHIFT;
- phy = phyAddr << FEC_MII_DATA_PA_SHIFT;
+ reg = regaddr << FEC_MII_DATA_RA_SHIFT;
+ phy = phyaddr << FEC_MII_DATA_PA_SHIFT;
writel(FEC_MII_DATA_ST | FEC_MII_DATA_OP_RD | FEC_MII_DATA_TA |
phy | reg, ð->mii_data);
- /*
- * wait for the related interrupt
- */
+ /* wait for the related interrupt */
start = get_timer(0);
while (!(readl(ð->ievent) & FEC_IEVENT_MII)) {
if (get_timer(start) > (CONFIG_SYS_HZ / 1000)) {
}
}
- /*
- * clear mii interrupt bit
- */
+ /* clear mii interrupt bit */
writel(FEC_IEVENT_MII, ð->ievent);
- /*
- * it's now safe to read the PHY's register
- */
+ /* it's now safe to read the PHY's register */
val = (unsigned short)readl(ð->mii_data);
- debug("%s: phy: %02x reg:%02x val:%#x\n", __func__, phyAddr,
- regAddr, val);
+ debug("%s: phy: %02x reg:%02x val:%#x\n", __func__, phyaddr,
+ regaddr, val);
return val;
}
/*
* Set MII_SPEED = (1/(mii_speed * 2)) * System Clock
* and do not drop the Preamble.
+ *
+ * The i.MX28 and i.MX6 types have another field in the MSCR (aka
+ * MII_SPEED) register that defines the MDIO output hold time. Earlier
+ * versions are RAZ there, so just ignore the difference and write the
+ * register always.
+ * The minimal hold time according to IEE802.3 (clause 22) is 10 ns.
+ * HOLDTIME + 1 is the number of clk cycles the fec is holding the
+ * output.
+ * The HOLDTIME bitfield takes values between 0 and 7 (inclusive).
+ * Given that ceil(clkrate / 5000000) <= 64, the calculation for
+ * holdtime cannot result in a value greater than 3.
*/
- register u32 speed = DIV_ROUND_UP(imx_get_fecclk(), 5000000);
+ u32 pclk = imx_get_fecclk();
+ u32 speed = DIV_ROUND_UP(pclk, 5000000);
+ u32 hold = DIV_ROUND_UP(pclk, 100000000) - 1;
#ifdef FEC_QUIRK_ENET_MAC
speed--;
#endif
- speed <<= 1;
- writel(speed, ð->mii_speed);
+ writel(speed << 1 | hold << 8, ð->mii_speed);
debug("%s: mii_speed %08x\n", __func__, readl(ð->mii_speed));
}
-static int fec_mdio_write(struct ethernet_regs *eth, uint8_t phyAddr,
- uint8_t regAddr, uint16_t data)
+static int fec_mdio_write(struct ethernet_regs *eth, uint8_t phyaddr,
+ uint8_t regaddr, uint16_t data)
{
uint32_t reg; /* convenient holder for the PHY register */
uint32_t phy; /* convenient holder for the PHY */
uint32_t start;
- reg = regAddr << FEC_MII_DATA_RA_SHIFT;
- phy = phyAddr << FEC_MII_DATA_PA_SHIFT;
+ reg = regaddr << FEC_MII_DATA_RA_SHIFT;
+ phy = phyaddr << FEC_MII_DATA_PA_SHIFT;
writel(FEC_MII_DATA_ST | FEC_MII_DATA_OP_WR |
FEC_MII_DATA_TA | phy | reg | data, ð->mii_data);
- /*
- * wait for the MII interrupt
- */
+ /* wait for the MII interrupt */
start = get_timer(0);
while (!(readl(ð->ievent) & FEC_IEVENT_MII)) {
if (get_timer(start) > (CONFIG_SYS_HZ / 1000)) {
}
}
- /*
- * clear MII interrupt bit
- */
+ /* clear MII interrupt bit */
writel(FEC_IEVENT_MII, ð->ievent);
- debug("%s: phy: %02x reg:%02x val:%#x\n", __func__, phyAddr,
- regAddr, data);
+ debug("%s: phy: %02x reg:%02x val:%#x\n", __func__, phyaddr,
+ regaddr, data);
return 0;
}
-static int fec_phy_read(struct mii_dev *bus, int phyAddr, int dev_addr,
- int regAddr)
+static int fec_phy_read(struct mii_dev *bus, int phyaddr, int dev_addr,
+ int regaddr)
{
- return fec_mdio_read(bus->priv, phyAddr, regAddr);
+ return fec_mdio_read(bus->priv, phyaddr, regaddr);
}
-static int fec_phy_write(struct mii_dev *bus, int phyAddr, int dev_addr,
- int regAddr, u16 data)
+static int fec_phy_write(struct mii_dev *bus, int phyaddr, int dev_addr,
+ int regaddr, u16 data)
{
- return fec_mdio_write(bus->priv, phyAddr, regAddr, data);
+ return fec_mdio_write(bus->priv, phyaddr, regaddr, data);
}
#ifndef CONFIG_PHYLIB
fec_mdio_write(eth, fec->phy_id, MII_BMCR, BMCR_RESET);
udelay(1000);
- /*
- * Set the auto-negotiation advertisement register bits
- */
+ /* Set the auto-negotiation advertisement register bits */
fec_mdio_write(eth, fec->phy_id, MII_ADVERTISE,
- LPA_100FULL | LPA_100HALF | LPA_10FULL |
- LPA_10HALF | PHY_ANLPAR_PSB_802_3);
+ LPA_100FULL | LPA_100HALF | LPA_10FULL |
+ LPA_10HALF | PHY_ANLPAR_PSB_802_3);
fec_mdio_write(eth, fec->phy_id, MII_BMCR,
- BMCR_ANENABLE | BMCR_ANRESTART);
+ BMCR_ANENABLE | BMCR_ANRESTART);
if (fec->mii_postcall)
ret = fec->mii_postcall(fec->phy_id);
return ret;
}
+#ifndef CONFIG_FEC_FIXED_SPEED
static int miiphy_wait_aneg(struct eth_device *dev)
{
uint32_t start;
struct fec_priv *fec = (struct fec_priv *)dev->priv;
struct ethernet_regs *eth = fec->bus->priv;
- /*
- * Wait for AN completion
- */
+ /* Wait for AN completion */
start = get_timer(0);
do {
if (get_timer(start) > (CONFIG_SYS_HZ * 5)) {
status = fec_mdio_read(eth, fec->phy_id, MII_BMSR);
if (status < 0) {
printf("%s: Autonegotiation failed. status: %d\n",
- dev->name, status);
+ dev->name, status);
return -1;
}
} while (!(status & BMSR_LSTATUS));
return 0;
}
+#endif /* CONFIG_FEC_FIXED_SPEED */
#endif
static int fec_rx_task_enable(struct fec_priv *fec)
/**
* Mark the given read buffer descriptor as free
* @param[in] last 1 if this is the last buffer descriptor in the chain, else 0
- * @param[in] pRbd buffer descriptor to mark free again
+ * @param[in] prbd buffer descriptor to mark free again
*/
-static void fec_rbd_clean(int last, struct fec_bd *pRbd)
+static void fec_rbd_clean(int last, struct fec_bd *prbd)
{
unsigned short flags = FEC_RBD_EMPTY;
if (last)
flags |= FEC_RBD_WRAP;
- writew(flags, &pRbd->status);
- writew(0, &pRbd->data_length);
+ writew(flags, &prbd->status);
+ writew(0, &prbd->data_length);
}
-static int fec_get_hwaddr(struct eth_device *dev, int dev_id,
- unsigned char *mac)
+static int fec_get_hwaddr(int dev_id, unsigned char *mac)
{
imx_get_mac_from_fuse(dev_id, mac);
return !is_valid_ethaddr(mac);
}
+#ifdef CONFIG_DM_ETH
+static int fecmxc_set_hwaddr(struct udevice *dev)
+#else
static int fec_set_hwaddr(struct eth_device *dev)
+#endif
{
+#ifdef CONFIG_DM_ETH
+ struct fec_priv *fec = dev_get_priv(dev);
+ struct eth_pdata *pdata = dev_get_platdata(dev);
+ uchar *mac = pdata->enetaddr;
+#else
uchar *mac = dev->enetaddr;
struct fec_priv *fec = (struct fec_priv *)dev->priv;
+#endif
writel(0, &fec->eth->iaddr1);
writel(0, &fec->eth->iaddr2);
writel(0, &fec->eth->gaddr1);
writel(0, &fec->eth->gaddr2);
- /*
- * Set physical address
- */
+ /* Set physical address */
writel((mac[0] << 24) + (mac[1] << 16) + (mac[2] << 8) + mac[3],
- &fec->eth->paddr1);
+ &fec->eth->paddr1);
writel((mac[4] << 24) + (mac[5] << 16) + 0x8808, &fec->eth->paddr2);
return 0;
}
-/*
- * Do initial configuration of the FEC registers
- */
+/* Do initial configuration of the FEC registers */
static void fec_reg_setup(struct fec_priv *fec)
{
uint32_t rcntrl;
- /*
- * Set interrupt mask register
- */
+ /* Set interrupt mask register */
writel(0x00000000, &fec->eth->imask);
- /*
- * Clear FEC-Lite interrupt event register(IEVENT)
- */
+ /* Clear FEC-Lite interrupt event register(IEVENT) */
writel(0xffffffff, &fec->eth->ievent);
-
- /*
- * Set FEC-Lite receive control register(R_CNTRL):
- */
+ /* Set FEC-Lite receive control register(R_CNTRL): */
/* Start with frame length = 1518, common for all modes. */
rcntrl = PKTSIZE << FEC_RCNTRL_MAX_FL_SHIFT;
* Start the FEC engine
* @param[in] dev Our device to handle
*/
+#ifdef CONFIG_DM_ETH
+static int fec_open(struct udevice *dev)
+#else
static int fec_open(struct eth_device *edev)
+#endif
{
+#ifdef CONFIG_DM_ETH
+ struct fec_priv *fec = dev_get_priv(dev);
+#else
struct fec_priv *fec = (struct fec_priv *)edev->priv;
+#endif
int speed;
uint32_t addr, size;
int i;
#ifdef FEC_QUIRK_ENET_MAC
/* Enable ENET HW endian SWAP */
writel(readl(&fec->eth->ecntrl) | FEC_ECNTRL_DBSWAP,
- &fec->eth->ecntrl);
+ &fec->eth->ecntrl);
/* Enable ENET store and forward mode */
writel(readl(&fec->eth->x_wmrk) | FEC_X_WMRK_STRFWD,
- &fec->eth->x_wmrk);
+ &fec->eth->x_wmrk);
#endif
- /*
- * Enable FEC-Lite controller
- */
+ /* Enable FEC-Lite controller */
writel(readl(&fec->eth->ecntrl) | FEC_ECNTRL_ETHER_EN,
- &fec->eth->ecntrl);
+ &fec->eth->ecntrl);
+
#if defined(CONFIG_MX25) || defined(CONFIG_MX53) || defined(CONFIG_MX6SL)
udelay(100);
- /*
- * setup the MII gasket for RMII mode
- */
+ /* setup the MII gasket for RMII mode */
/* disable the gasket */
writew(0, &fec->eth->miigsk_enr);
}
speed = fec->phydev->speed;
}
+#elif CONFIG_FEC_FIXED_SPEED
+ speed = CONFIG_FEC_FIXED_SPEED;
#else
miiphy_wait_aneg(edev);
speed = miiphy_speed(edev->name, fec->phy_id);
#endif
debug("%s:Speed=%i\n", __func__, speed);
- /*
- * Enable SmartDMA receive task
- */
+ /* Enable SmartDMA receive task */
fec_rx_task_enable(fec);
udelay(100000);
return 0;
}
-static int fec_init(struct eth_device *dev, bd_t* bd)
+#ifdef CONFIG_DM_ETH
+static int fecmxc_init(struct udevice *dev)
+#else
+static int fec_init(struct eth_device *dev, bd_t *bd)
+#endif
{
+#ifdef CONFIG_DM_ETH
+ struct fec_priv *fec = dev_get_priv(dev);
+#else
struct fec_priv *fec = (struct fec_priv *)dev->priv;
+#endif
uint32_t mib_ptr = (uint32_t)&fec->eth->rmon_t_drop;
int i;
/* Initialize MAC address */
+#ifdef CONFIG_DM_ETH
+ fecmxc_set_hwaddr(dev);
+#else
fec_set_hwaddr(dev);
+#endif
- /*
- * Setup transmit descriptors, there are two in total.
- */
+ /* Setup transmit descriptors, there are two in total. */
fec_tbd_init(fec);
/* Setup receive descriptors. */
if (fec->xcv_type != SEVENWIRE)
fec_mii_setspeed(fec->bus->priv);
- /*
- * Set Opcode/Pause Duration Register
- */
+ /* Set Opcode/Pause Duration Register */
writel(0x00010020, &fec->eth->op_pause); /* FIXME 0xffff0020; */
writel(0x2, &fec->eth->x_wmrk);
- /*
- * Set multicast address filter
- */
+
+ /* Set multicast address filter */
writel(0x00000000, &fec->eth->gaddr1);
writel(0x00000000, &fec->eth->gaddr2);
+ /* Do not access reserved register for i.MX6UL */
+ if (!is_mx6ul() && !is_mx6ull()) {
+ /* clear MIB RAM */
+ for (i = mib_ptr; i <= mib_ptr + 0xfc; i += 4)
+ writel(0, i);
- /* clear MIB RAM */
- for (i = mib_ptr; i <= mib_ptr + 0xfc; i += 4)
- writel(0, i);
-
- /* FIFO receive start register */
- writel(0x520, &fec->eth->r_fstart);
+ /* FIFO receive start register */
+ writel(0x520, &fec->eth->r_fstart);
+ }
/* size and address of each buffer */
writel(FEC_MAX_PKT_SIZE, &fec->eth->emrbr);
* Halt the FEC engine
* @param[in] dev Our device to handle
*/
+#ifdef CONFIG_DM_ETH
+static void fecmxc_halt(struct udevice *dev)
+#else
static void fec_halt(struct eth_device *dev)
+#endif
{
+#ifdef CONFIG_DM_ETH
+ struct fec_priv *fec = dev_get_priv(dev);
+#else
struct fec_priv *fec = (struct fec_priv *)dev->priv;
+#endif
int counter = 0xffff;
- /*
- * issue graceful stop command to the FEC transmitter if necessary
- */
+ /* issue graceful stop command to the FEC transmitter if necessary */
writel(FEC_TCNTRL_GTS | readl(&fec->eth->x_cntrl),
- &fec->eth->x_cntrl);
+ &fec->eth->x_cntrl);
debug("eth_halt: wait for stop regs\n");
- /*
- * wait for graceful stop to register
- */
+ /* wait for graceful stop to register */
while ((counter--) && (!(readl(&fec->eth->ievent) & FEC_IEVENT_GRA)))
udelay(1);
- /*
- * Disable SmartDMA tasks
- */
+ /* Disable SmartDMA tasks */
fec_tx_task_disable(fec);
fec_rx_task_disable(fec);
* Note: this will also reset the BD index counter!
*/
writel(readl(&fec->eth->ecntrl) & ~FEC_ECNTRL_ETHER_EN,
- &fec->eth->ecntrl);
+ &fec->eth->ecntrl);
fec->rbd_index = 0;
fec->tbd_index = 0;
debug("eth_halt: done\n");
* @param[in] length Data count in bytes
* @return 0 on success
*/
+#ifdef CONFIG_DM_ETH
+static int fecmxc_send(struct udevice *dev, void *packet, int length)
+#else
static int fec_send(struct eth_device *dev, void *packet, int length)
+#endif
{
unsigned int status;
uint32_t size, end;
* This routine transmits one frame. This routine only accepts
* 6-byte Ethernet addresses.
*/
+#ifdef CONFIG_DM_ETH
+ struct fec_priv *fec = dev_get_priv(dev);
+#else
struct fec_priv *fec = (struct fec_priv *)dev->priv;
+#endif
/*
* Check for valid length of data.
*/
readl(addr + size - 4);
- /*
- * Enable SmartDMA transmit task
- */
+ /* Enable SmartDMA transmit task */
fec_tx_task_enable(fec);
/*
out:
debug("fec_send: status 0x%x index %d ret %i\n",
- readw(&fec->tbd_base[fec->tbd_index].status),
- fec->tbd_index, ret);
+ readw(&fec->tbd_base[fec->tbd_index].status),
+ fec->tbd_index, ret);
/* for next transmission use the other buffer */
if (fec->tbd_index)
fec->tbd_index = 0;
* @param[in] dev Our ethernet device to handle
* @return Length of packet read
*/
+#ifdef CONFIG_DM_ETH
+static int fecmxc_recv(struct udevice *dev, int flags, uchar **packetp)
+#else
static int fec_recv(struct eth_device *dev)
+#endif
{
+#ifdef CONFIG_DM_ETH
+ struct fec_priv *fec = dev_get_priv(dev);
+#else
struct fec_priv *fec = (struct fec_priv *)dev->priv;
+#endif
struct fec_bd *rbd = &fec->rbd_base[fec->rbd_index];
unsigned long ievent;
int frame_length, len = 0;
- struct nbuf *frame;
uint16_t bd_status;
uint32_t addr, size, end;
int i;
ALLOC_CACHE_ALIGN_BUFFER(uchar, buff, FEC_MAX_PKT_SIZE);
- /*
- * Check if any critical events have happened
- */
+ /* Check if any critical events have happened */
ievent = readl(&fec->eth->ievent);
writel(ievent, &fec->eth->ievent);
debug("fec_recv: ievent 0x%lx\n", ievent);
if (ievent & FEC_IEVENT_BABR) {
+#ifdef CONFIG_DM_ETH
+ fecmxc_halt(dev);
+ fecmxc_init(dev);
+#else
fec_halt(dev);
fec_init(dev, fec->bd);
+#endif
printf("some error: 0x%08lx\n", ievent);
return 0;
}
if (ievent & FEC_IEVENT_HBERR) {
/* Heartbeat error */
writel(0x00000001 | readl(&fec->eth->x_cntrl),
- &fec->eth->x_cntrl);
+ &fec->eth->x_cntrl);
}
if (ievent & FEC_IEVENT_GRA) {
/* Graceful stop complete */
if (readl(&fec->eth->x_cntrl) & 0x00000001) {
+#ifdef CONFIG_DM_ETH
+ fecmxc_halt(dev);
+#else
fec_halt(dev);
+#endif
writel(~0x00000001 & readl(&fec->eth->x_cntrl),
- &fec->eth->x_cntrl);
+ &fec->eth->x_cntrl);
+#ifdef CONFIG_DM_ETH
+ fecmxc_init(dev);
+#else
fec_init(dev, fec->bd);
+#endif
}
}
if (!(bd_status & FEC_RBD_EMPTY)) {
if ((bd_status & FEC_RBD_LAST) && !(bd_status & FEC_RBD_ERR) &&
- ((readw(&rbd->data_length) - 4) > 14)) {
- /*
- * Get buffer address and size
- */
- frame = (struct nbuf *)readl(&rbd->data_pointer);
+ ((readw(&rbd->data_length) - 4) > 14)) {
+ /* Get buffer address and size */
+ addr = readl(&rbd->data_pointer);
frame_length = readw(&rbd->data_length) - 4;
- /*
- * Invalidate data cache over the buffer
- */
- addr = (uint32_t)frame;
+ /* Invalidate data cache over the buffer */
end = roundup(addr + frame_length, ARCH_DMA_MINALIGN);
addr &= ~(ARCH_DMA_MINALIGN - 1);
invalidate_dcache_range(addr, end);
- /*
- * Fill the buffer and pass it to upper layers
- */
+ /* Fill the buffer and pass it to upper layers */
#ifdef CONFIG_FEC_MXC_SWAP_PACKET
- swap_packet((uint32_t *)frame->data, frame_length);
+ swap_packet((uint32_t *)addr, frame_length);
#endif
- memcpy(buff, frame->data, frame_length);
+ memcpy(buff, (char *)addr, frame_length);
net_process_received_packet(buff, frame_length);
len = frame_length;
} else {
if (bd_status & FEC_RBD_ERR)
- printf("error frame: 0x%08lx 0x%08x\n",
- (ulong)rbd->data_pointer,
- bd_status);
+ printf("error frame: 0x%08x 0x%08x\n",
+ addr, bd_status);
}
/*
&fec->rbd_base[i]);
}
flush_dcache_range(addr,
- addr + ARCH_DMA_MINALIGN);
+ addr + ARCH_DMA_MINALIGN);
}
fec_rx_task_enable(fec);
free(fec->tbd_base);
}
+#ifdef CONFIG_DM_ETH
+struct mii_dev *fec_get_miibus(struct udevice *dev, int dev_id)
+#else
+struct mii_dev *fec_get_miibus(uint32_t base_addr, int dev_id)
+#endif
+{
+#ifdef CONFIG_DM_ETH
+ struct fec_priv *priv = dev_get_priv(dev);
+ struct ethernet_regs *eth = priv->eth;
+#else
+ struct ethernet_regs *eth = (struct ethernet_regs *)base_addr;
+#endif
+ struct mii_dev *bus;
+ int ret;
+
+ bus = mdio_alloc();
+ if (!bus) {
+ printf("mdio_alloc failed\n");
+ return NULL;
+ }
+ bus->read = fec_phy_read;
+ bus->write = fec_phy_write;
+ bus->priv = eth;
+ fec_set_dev_name(bus->name, dev_id);
+
+ ret = mdio_register(bus);
+ if (ret) {
+ printf("mdio_register failed\n");
+ free(bus);
+ return NULL;
+ }
+ fec_mii_setspeed(eth);
+ return bus;
+}
+
+#ifndef CONFIG_DM_ETH
#ifdef CONFIG_PHYLIB
int fec_probe(bd_t *bd, int dev_id, uint32_t base_addr,
struct mii_dev *bus, struct phy_device *phydev)
struct eth_device *edev;
struct fec_priv *fec;
unsigned char ethaddr[6];
+ char mac[16];
uint32_t start;
int ret = 0;
start = get_timer(0);
while (readl(&fec->eth->ecntrl) & FEC_ECNTRL_RESET) {
if (get_timer(start) > (CONFIG_SYS_HZ * 5)) {
- printf("FEC MXC: Timeout reseting chip\n");
+ printf("FEC MXC: Timeout resetting chip\n");
goto err4;
}
udelay(10);
fec->phy_id = phy_id;
#endif
eth_register(edev);
+ /* only support one eth device, the index number pointed by dev_id */
+ edev->index = fec->dev_id;
- if (fec_get_hwaddr(edev, dev_id, ethaddr) == 0) {
- debug("got MAC%d address from fuse: %pM\n", dev_id, ethaddr);
+ if (fec_get_hwaddr(fec->dev_id, ethaddr) == 0) {
+ debug("got MAC%d address from fuse: %pM\n", fec->dev_id, ethaddr);
memcpy(edev->enetaddr, ethaddr, 6);
- if (!getenv("ethaddr"))
- eth_setenv_enetaddr("ethaddr", ethaddr);
+ if (fec->dev_id)
+ sprintf(mac, "eth%daddr", fec->dev_id);
+ else
+ strcpy(mac, "ethaddr");
+ if (!env_get(mac))
+ eth_env_set_enetaddr(mac, ethaddr);
}
return ret;
err4:
return ret;
}
-struct mii_dev *fec_get_miibus(uint32_t base_addr, int dev_id)
-{
- struct ethernet_regs *eth = (struct ethernet_regs *)base_addr;
- struct mii_dev *bus;
- int ret;
-
- bus = mdio_alloc();
- if (!bus) {
- printf("mdio_alloc failed\n");
- return NULL;
- }
- bus->read = fec_phy_read;
- bus->write = fec_phy_write;
- bus->priv = eth;
- fec_set_dev_name(bus->name, dev_id);
-
- ret = mdio_register(bus);
- if (ret) {
- printf("mdio_register failed\n");
- free(bus);
- return NULL;
- }
- fec_mii_setspeed(eth);
- return bus;
-}
-
int fecmxc_initialize_multi(bd_t *bd, int dev_id, int phy_id, uint32_t addr)
{
uint32_t base_mii;
#ifdef CONFIG_PHYLIB
phydev = phy_find_by_mask(bus, 1 << phy_id, PHY_INTERFACE_MODE_RGMII);
if (!phydev) {
+ mdio_unregister(bus);
free(bus);
return -ENOMEM;
}
#ifdef CONFIG_PHYLIB
free(phydev);
#endif
+ mdio_unregister(bus);
free(bus);
}
return ret;
return 0;
}
#endif
+
+#else
+
+static int fecmxc_read_rom_hwaddr(struct udevice *dev)
+{
+ struct fec_priv *priv = dev_get_priv(dev);
+ struct eth_pdata *pdata = dev_get_platdata(dev);
+
+ return fec_get_hwaddr(priv->dev_id, pdata->enetaddr);
+}
+
+static const struct eth_ops fecmxc_ops = {
+ .start = fecmxc_init,
+ .send = fecmxc_send,
+ .recv = fecmxc_recv,
+ .stop = fecmxc_halt,
+ .write_hwaddr = fecmxc_set_hwaddr,
+ .read_rom_hwaddr = fecmxc_read_rom_hwaddr,
+};
+
+static int fec_phy_init(struct fec_priv *priv, struct udevice *dev)
+{
+ struct phy_device *phydev;
+ int mask = 0xffffffff;
+
+#ifdef CONFIG_PHYLIB
+ mask = 1 << CONFIG_FEC_MXC_PHYADDR;
+#endif
+
+ phydev = phy_find_by_mask(priv->bus, mask, priv->interface);
+ if (!phydev)
+ return -ENODEV;
+
+ phy_connect_dev(phydev, dev);
+
+ priv->phydev = phydev;
+ phy_config(phydev);
+
+ return 0;
+}
+
+static int fecmxc_probe(struct udevice *dev)
+{
+ struct eth_pdata *pdata = dev_get_platdata(dev);
+ struct fec_priv *priv = dev_get_priv(dev);
+ struct mii_dev *bus = NULL;
+ int dev_id = -1;
+ uint32_t start;
+ int ret;
+
+ ret = fec_alloc_descs(priv);
+ if (ret)
+ return ret;
+
+ /* Reset chip. */
+ writel(readl(&priv->eth->ecntrl) | FEC_ECNTRL_RESET,
+ &priv->eth->ecntrl);
+ start = get_timer(0);
+ while (readl(&priv->eth->ecntrl) & FEC_ECNTRL_RESET) {
+ if (get_timer(start) > (CONFIG_SYS_HZ * 5)) {
+ printf("FEC MXC: Timeout reseting chip\n");
+ goto err_timeout;
+ }
+ udelay(10);
+ }
+
+ fec_reg_setup(priv);
+ priv->dev_id = (dev_id == -1) ? 0 : dev_id;
+
+ bus = fec_get_miibus(dev, dev_id);
+ if (!bus) {
+ ret = -ENOMEM;
+ goto err_mii;
+ }
+
+ priv->bus = bus;
+ priv->xcv_type = CONFIG_FEC_XCV_TYPE;
+ priv->interface = pdata->phy_interface;
+ ret = fec_phy_init(priv, dev);
+ if (ret)
+ goto err_phy;
+
+ return 0;
+
+err_timeout:
+ free(priv->phydev);
+err_phy:
+ mdio_unregister(bus);
+ free(bus);
+err_mii:
+ fec_free_descs(priv);
+ return ret;
+}
+
+static int fecmxc_remove(struct udevice *dev)
+{
+ struct fec_priv *priv = dev_get_priv(dev);
+
+ free(priv->phydev);
+ fec_free_descs(priv);
+ mdio_unregister(priv->bus);
+ mdio_free(priv->bus);
+
+ return 0;
+}
+
+static int fecmxc_ofdata_to_platdata(struct udevice *dev)
+{
+ struct eth_pdata *pdata = dev_get_platdata(dev);
+ struct fec_priv *priv = dev_get_priv(dev);
+ const char *phy_mode;
+
+ pdata->iobase = (phys_addr_t)devfdt_get_addr(dev);
+ priv->eth = (struct ethernet_regs *)pdata->iobase;
+
+ 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;
+ }
+
+ /* TODO
+ * Need to get the reset-gpio and related properties from DT
+ * and implemet the enet reset code on .probe call
+ */
+
+ return 0;
+}
+
+static const struct udevice_id fecmxc_ids[] = {
+ { .compatible = "fsl,imx6q-fec" },
+ { }
+};
+
+U_BOOT_DRIVER(fecmxc_gem) = {
+ .name = "fecmxc",
+ .id = UCLASS_ETH,
+ .of_match = fecmxc_ids,
+ .ofdata_to_platdata = fecmxc_ofdata_to_platdata,
+ .probe = fecmxc_probe,
+ .remove = fecmxc_remove,
+ .ops = &fecmxc_ops,
+ .priv_auto_alloc_size = sizeof(struct fec_priv),
+ .platdata_auto_alloc_size = sizeof(struct eth_pdata),
+};
+#endif
projects / u-boot / blobdiff