* allocate our own, but we need one such buffer in case a packet
* wraps around the DMA ring so that we have to copy it.
*
- * Therefore, define CFG_RX_ETH_BUFFER to 1 in the board-specific
+ * Therefore, define CONFIG_SYS_RX_ETH_BUFFER to 1 in the board-specific
* configuration header. This way, the core allocates one RX buffer
* and one TX buffer, each of which can hold a ethernet packet of
* maximum size.
#include <net.h>
#include <netdev.h>
#include <malloc.h>
+#include <miiphy.h>
#include <linux/mii.h>
#include <asm/io.h>
#include "macb.h"
-#define barrier() asm volatile("" ::: "memory")
-
-#define CFG_MACB_RX_BUFFER_SIZE 4096
-#define CFG_MACB_RX_RING_SIZE (CFG_MACB_RX_BUFFER_SIZE / 128)
-#define CFG_MACB_TX_RING_SIZE 16
-#define CFG_MACB_TX_TIMEOUT 1000
-#define CFG_MACB_AUTONEG_TIMEOUT 5000000
+#define CONFIG_SYS_MACB_RX_BUFFER_SIZE 4096
+#define CONFIG_SYS_MACB_RX_RING_SIZE (CONFIG_SYS_MACB_RX_BUFFER_SIZE / 128)
+#define CONFIG_SYS_MACB_TX_RING_SIZE 16
+#define CONFIG_SYS_MACB_TX_TIMEOUT 1000
+#define CONFIG_SYS_MACB_AUTONEG_TIMEOUT 5000000
struct macb_dma_desc {
u32 addr;
const struct device *dev;
struct eth_device netdev;
unsigned short phy_addr;
+ struct mii_dev *bus;
};
#define to_macb(_nd) container_of(_nd, struct macb_device, netdev)
+static int macb_is_gem(struct macb_device *macb)
+{
+ return MACB_BFEXT(IDNUM, macb_readl(macb, MID)) == 0x2;
+}
+
static void macb_mdio_write(struct macb_device *macb, u8 reg, u16 value)
{
unsigned long netctl;
return MACB_BFEXT(DATA, frame);
}
+void __weak arch_get_mdio_control(const char *name)
+{
+ return;
+}
+
+#if defined(CONFIG_CMD_MII) || defined(CONFIG_PHYLIB)
+
+int macb_miiphy_read(const char *devname, u8 phy_adr, u8 reg, u16 *value)
+{
+ struct eth_device *dev = eth_get_dev_by_name(devname);
+ struct macb_device *macb = to_macb(dev);
+
+ if ( macb->phy_addr != phy_adr )
+ return -1;
+
+ arch_get_mdio_control(devname);
+ *value = macb_mdio_read(macb, reg);
+
+ return 0;
+}
+
+int macb_miiphy_write(const char *devname, u8 phy_adr, u8 reg, u16 value)
+{
+ struct eth_device *dev = eth_get_dev_by_name(devname);
+ struct macb_device *macb = to_macb(dev);
+
+ if ( macb->phy_addr != phy_adr )
+ return -1;
+
+ arch_get_mdio_control(devname);
+ macb_mdio_write(macb, reg, value);
+
+ return 0;
+}
+#endif
+
+
#if defined(CONFIG_CMD_NET)
-static int macb_send(struct eth_device *netdev, volatile void *packet,
- int length)
+static int macb_send(struct eth_device *netdev, void *packet, int length)
{
struct macb_device *macb = to_macb(netdev);
unsigned long paddr, ctrl;
ctrl = length & TXBUF_FRMLEN_MASK;
ctrl |= TXBUF_FRAME_END;
- if (tx_head == (CFG_MACB_TX_RING_SIZE - 1)) {
+ if (tx_head == (CONFIG_SYS_MACB_TX_RING_SIZE - 1)) {
ctrl |= TXBUF_WRAP;
macb->tx_head = 0;
} else
* I guess this is necessary because the networking core may
* re-use the transmit buffer as soon as we return...
*/
- for (i = 0; i <= CFG_MACB_TX_TIMEOUT; i++) {
+ for (i = 0; i <= CONFIG_SYS_MACB_TX_TIMEOUT; i++) {
barrier();
ctrl = macb->tx_ring[tx_head].ctrl;
if (ctrl & TXBUF_USED)
dma_unmap_single(packet, length, paddr);
- if (i <= CFG_MACB_TX_TIMEOUT) {
+ if (i <= CONFIG_SYS_MACB_TX_TIMEOUT) {
if (ctrl & TXBUF_UNDERRUN)
printf("%s: TX underrun\n", netdev->name);
if (ctrl & TXBUF_EXHAUSTED)
while (i > new_tail) {
macb->rx_ring[i].addr &= ~RXADDR_USED;
i++;
- if (i > CFG_MACB_RX_RING_SIZE)
+ if (i > CONFIG_SYS_MACB_RX_RING_SIZE)
i = 0;
}
if (wrapped) {
unsigned int headlen, taillen;
- headlen = 128 * (CFG_MACB_RX_RING_SIZE
+ headlen = 128 * (CONFIG_SYS_MACB_RX_RING_SIZE
- macb->rx_tail);
taillen = length - headlen;
memcpy((void *)NetRxPackets[0],
}
NetReceive(buffer, length);
- if (++rx_tail >= CFG_MACB_RX_RING_SIZE)
+ if (++rx_tail >= CONFIG_SYS_MACB_RX_RING_SIZE)
rx_tail = 0;
reclaim_rx_buffers(macb, rx_tail);
} else {
- if (++rx_tail >= CFG_MACB_RX_RING_SIZE) {
+ if (++rx_tail >= CONFIG_SYS_MACB_RX_RING_SIZE) {
wrapped = 1;
rx_tail = 0;
}
macb_mdio_write(macb, MII_BMCR, (BMCR_ANENABLE
| BMCR_ANRESTART));
- for (i = 0; i < CFG_MACB_AUTONEG_TIMEOUT / 100; i++) {
+ for (i = 0; i < CONFIG_SYS_MACB_AUTONEG_TIMEOUT / 100; i++) {
status = macb_mdio_read(macb, MII_BMSR);
if (status & BMSR_ANEGCOMPLETE)
break;
netdev->name, status);
}
+#ifdef CONFIG_MACB_SEARCH_PHY
+static int macb_phy_find(struct macb_device *macb)
+{
+ int i;
+ u16 phy_id;
+
+ /* Search for PHY... */
+ for (i = 0; i < 32; i++) {
+ macb->phy_addr = i;
+ phy_id = macb_mdio_read(macb, MII_PHYSID1);
+ if (phy_id != 0xffff) {
+ printf("%s: PHY present at %d\n", macb->netdev.name, i);
+ return 1;
+ }
+ }
+
+ /* PHY isn't up to snuff */
+ printf("%s: PHY not found\n", macb->netdev.name);
+
+ return 0;
+}
+#endif /* CONFIG_MACB_SEARCH_PHY */
+
+
static int macb_phy_init(struct macb_device *macb)
{
struct eth_device *netdev = &macb->netdev;
+#ifdef CONFIG_PHYLIB
+ struct phy_device *phydev;
+#endif
u32 ncfgr;
u16 phy_id, status, adv, lpa;
int media, speed, duplex;
int i;
+ arch_get_mdio_control(netdev->name);
+#ifdef CONFIG_MACB_SEARCH_PHY
+ /* Auto-detect phy_addr */
+ if (!macb_phy_find(macb)) {
+ return 0;
+ }
+#endif /* CONFIG_MACB_SEARCH_PHY */
+
/* Check if the PHY is up to snuff... */
phy_id = macb_mdio_read(macb, MII_PHYSID1);
if (phy_id == 0xffff) {
return 0;
}
+#ifdef CONFIG_PHYLIB
+ phydev->bus = macb->bus;
+ phydev->dev = netdev;
+ phydev->addr = macb->phy_addr;
+ phy_config(phydev);
+#endif
+
status = macb_mdio_read(macb, MII_BMSR);
if (!(status & BMSR_LSTATUS)) {
/* Try to re-negotiate if we don't have link already. */
macb_phy_reset(macb);
- for (i = 0; i < CFG_MACB_AUTONEG_TIMEOUT / 100; i++) {
+ for (i = 0; i < CONFIG_SYS_MACB_AUTONEG_TIMEOUT / 100; i++) {
status = macb_mdio_read(macb, MII_BMSR);
if (status & BMSR_LSTATUS)
break;
printf("%s: link down (status: 0x%04x)\n",
netdev->name, status);
return 0;
- } else {
- adv = macb_mdio_read(macb, MII_ADVERTISE);
- lpa = macb_mdio_read(macb, MII_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 (lpa: 0x%04x)\n",
- netdev->name,
- speed ? "100" : "10",
- duplex ? "full" : "half",
- lpa);
-
- ncfgr = macb_readl(macb, NCFGR);
- ncfgr &= ~(MACB_BIT(SPD) | MACB_BIT(FD));
- if (speed)
- ncfgr |= MACB_BIT(SPD);
- if (duplex)
- ncfgr |= MACB_BIT(FD);
- macb_writel(macb, NCFGR, ncfgr);
- return 1;
}
+
+ /* First check for GMAC */
+ if (macb_is_gem(macb)) {
+ lpa = macb_mdio_read(macb, MII_STAT1000);
+ if (lpa & (1 << 11)) {
+ speed = 1000;
+ duplex = 1;
+ } else {
+ if (lpa & (1 << 10)) {
+ speed = 1000;
+ duplex = 1;
+ } else {
+ speed = 0;
+ }
+ }
+
+ if (speed == 1000) {
+ printf("%s: link up, %dMbps %s-duplex (lpa: 0x%04x)\n",
+ netdev->name,
+ speed,
+ duplex ? "full" : "half",
+ lpa);
+
+ ncfgr = macb_readl(macb, NCFGR);
+ ncfgr &= ~(GEM_BIT(GBE) | MACB_BIT(SPD) | MACB_BIT(FD));
+ if (speed)
+ ncfgr |= GEM_BIT(GBE);
+ if (duplex)
+ ncfgr |= MACB_BIT(FD);
+ macb_writel(macb, NCFGR, ncfgr);
+
+ return 1;
+ }
+ }
+
+ /* fall back for EMAC checking */
+ adv = macb_mdio_read(macb, MII_ADVERTISE);
+ lpa = macb_mdio_read(macb, MII_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 (lpa: 0x%04x)\n",
+ netdev->name,
+ speed ? "100" : "10",
+ duplex ? "full" : "half",
+ lpa);
+
+ ncfgr = macb_readl(macb, NCFGR);
+ ncfgr &= ~(MACB_BIT(SPD) | MACB_BIT(FD));
+ if (speed)
+ ncfgr |= MACB_BIT(SPD);
+ if (duplex)
+ ncfgr |= MACB_BIT(FD);
+ macb_writel(macb, NCFGR, ncfgr);
+
+ return 1;
}
static int macb_init(struct eth_device *netdev, bd_t *bd)
{
struct macb_device *macb = to_macb(netdev);
unsigned long paddr;
- u32 hwaddr_bottom;
- u16 hwaddr_top;
int i;
/*
/* initialize DMA descriptors */
paddr = macb->rx_buffer_dma;
- for (i = 0; i < CFG_MACB_RX_RING_SIZE; i++) {
- if (i == (CFG_MACB_RX_RING_SIZE - 1))
+ for (i = 0; i < CONFIG_SYS_MACB_RX_RING_SIZE; i++) {
+ if (i == (CONFIG_SYS_MACB_RX_RING_SIZE - 1))
paddr |= RXADDR_WRAP;
macb->rx_ring[i].addr = paddr;
macb->rx_ring[i].ctrl = 0;
paddr += 128;
}
- for (i = 0; i < CFG_MACB_TX_RING_SIZE; i++) {
+ for (i = 0; i < CONFIG_SYS_MACB_TX_RING_SIZE; i++) {
macb->tx_ring[i].addr = 0;
- if (i == (CFG_MACB_TX_RING_SIZE - 1))
+ if (i == (CONFIG_SYS_MACB_TX_RING_SIZE - 1))
macb->tx_ring[i].ctrl = TXBUF_USED | TXBUF_WRAP;
else
macb->tx_ring[i].ctrl = TXBUF_USED;
macb_writel(macb, RBQP, macb->rx_ring_dma);
macb_writel(macb, TBQP, macb->tx_ring_dma);
- /* set hardware address */
- hwaddr_bottom = cpu_to_le32(*((u32 *)netdev->enetaddr));
- macb_writel(macb, SA1B, hwaddr_bottom);
- hwaddr_top = cpu_to_le16(*((u16 *)(netdev->enetaddr + 4)));
- macb_writel(macb, SA1T, hwaddr_top);
-
+ if (macb_is_gem(macb)) {
+#ifdef CONFIG_RGMII
+ gem_writel(macb, UR, GEM_BIT(RGMII));
+#else
+ gem_writel(macb, UR, 0);
+#endif
+ } else {
/* choose RMII or MII mode. This depends on the board */
#ifdef CONFIG_RMII
-#if defined(CONFIG_AT91CAP9) || defined(CONFIG_AT91SAM9260) || \
- defined(CONFIG_AT91SAM9263)
+#ifdef CONFIG_AT91FAMILY
macb_writel(macb, USRIO, MACB_BIT(RMII) | MACB_BIT(CLKEN));
#else
macb_writel(macb, USRIO, 0);
#endif
#else
-#if defined(CONFIG_AT91CAP9) || defined(CONFIG_AT91SAM9260) || \
- defined(CONFIG_AT91SAM9263)
+#ifdef CONFIG_AT91FAMILY
macb_writel(macb, USRIO, MACB_BIT(CLKEN));
#else
macb_writel(macb, USRIO, MACB_BIT(MII));
#endif
#endif /* CONFIG_RMII */
+ }
if (!macb_phy_init(macb))
return -1;
macb_writel(macb, NCR, MACB_BIT(CLRSTAT));
}
+static int macb_write_hwaddr(struct eth_device *dev)
+{
+ struct macb_device *macb = to_macb(dev);
+ u32 hwaddr_bottom;
+ u16 hwaddr_top;
+
+ /* set hardware address */
+ hwaddr_bottom = dev->enetaddr[0] | dev->enetaddr[1] << 8 |
+ dev->enetaddr[2] << 16 | dev->enetaddr[3] << 24;
+ macb_writel(macb, SA1B, hwaddr_bottom);
+ hwaddr_top = dev->enetaddr[4] | dev->enetaddr[5] << 8;
+ macb_writel(macb, SA1T, hwaddr_top);
+ return 0;
+}
+
+static u32 macb_mdc_clk_div(int id, struct macb_device *macb)
+{
+ u32 config;
+ unsigned long macb_hz = get_macb_pclk_rate(id);
+
+ if (macb_hz < 20000000)
+ config = MACB_BF(CLK, MACB_CLK_DIV8);
+ else if (macb_hz < 40000000)
+ config = MACB_BF(CLK, MACB_CLK_DIV16);
+ else if (macb_hz < 80000000)
+ config = MACB_BF(CLK, MACB_CLK_DIV32);
+ else
+ config = MACB_BF(CLK, MACB_CLK_DIV64);
+
+ return config;
+}
+
+static u32 gem_mdc_clk_div(int id, struct macb_device *macb)
+{
+ u32 config;
+ unsigned long macb_hz = get_macb_pclk_rate(id);
+
+ if (macb_hz < 20000000)
+ config = GEM_BF(CLK, GEM_CLK_DIV8);
+ else if (macb_hz < 40000000)
+ config = GEM_BF(CLK, GEM_CLK_DIV16);
+ else if (macb_hz < 80000000)
+ config = GEM_BF(CLK, GEM_CLK_DIV32);
+ else if (macb_hz < 120000000)
+ config = GEM_BF(CLK, GEM_CLK_DIV48);
+ else if (macb_hz < 160000000)
+ config = GEM_BF(CLK, GEM_CLK_DIV64);
+ else
+ config = GEM_BF(CLK, GEM_CLK_DIV96);
+
+ return config;
+}
+
int macb_eth_initialize(int id, void *regs, unsigned int phy_addr)
{
struct macb_device *macb;
struct eth_device *netdev;
- unsigned long macb_hz;
u32 ncfgr;
macb = malloc(sizeof(struct macb_device));
netdev = &macb->netdev;
- macb->rx_buffer = dma_alloc_coherent(CFG_MACB_RX_BUFFER_SIZE,
+ macb->rx_buffer = dma_alloc_coherent(CONFIG_SYS_MACB_RX_BUFFER_SIZE,
&macb->rx_buffer_dma);
- macb->rx_ring = dma_alloc_coherent(CFG_MACB_RX_RING_SIZE
+ macb->rx_ring = dma_alloc_coherent(CONFIG_SYS_MACB_RX_RING_SIZE
* sizeof(struct macb_dma_desc),
&macb->rx_ring_dma);
- macb->tx_ring = dma_alloc_coherent(CFG_MACB_TX_RING_SIZE
+ macb->tx_ring = dma_alloc_coherent(CONFIG_SYS_MACB_TX_RING_SIZE
* sizeof(struct macb_dma_desc),
&macb->tx_ring_dma);
macb->regs = regs;
macb->phy_addr = phy_addr;
- sprintf(netdev->name, "macb%d", id);
+ if (macb_is_gem(macb))
+ sprintf(netdev->name, "gmac%d", id);
+ else
+ sprintf(netdev->name, "macb%d", id);
+
netdev->init = macb_init;
netdev->halt = macb_halt;
netdev->send = macb_send;
netdev->recv = macb_recv;
+ netdev->write_hwaddr = macb_write_hwaddr;
/*
* Do some basic initialization so that we at least can talk
* to the PHY
*/
- macb_hz = get_macb_pclk_rate(id);
- if (macb_hz < 20000000)
- ncfgr = MACB_BF(CLK, MACB_CLK_DIV8);
- else if (macb_hz < 40000000)
- ncfgr = MACB_BF(CLK, MACB_CLK_DIV16);
- else if (macb_hz < 80000000)
- ncfgr = MACB_BF(CLK, MACB_CLK_DIV32);
- else
- ncfgr = MACB_BF(CLK, MACB_CLK_DIV64);
+ if (macb_is_gem(macb)) {
+ ncfgr = gem_mdc_clk_div(id, macb);
+ ncfgr |= GEM_BF(DBW, 1);
+ } else {
+ ncfgr = macb_mdc_clk_div(id, macb);
+ }
macb_writel(macb, NCFGR, ncfgr);
eth_register(netdev);
- return 0;
-}
-
+#if defined(CONFIG_CMD_MII) || defined(CONFIG_PHYLIB)
+ miiphy_register(netdev->name, macb_miiphy_read, macb_miiphy_write);
+ macb->bus = miiphy_get_dev_by_name(netdev->name);
#endif
-
-#if defined(CONFIG_CMD_MII)
-
-int miiphy_read(unsigned char addr, unsigned char reg, unsigned short *value)
-{
- unsigned long netctl;
- unsigned long netstat;
- unsigned long frame;
- int iflag;
-
- iflag = disable_interrupts();
- netctl = macb_readl(&macb, EMACB_NCR);
- netctl |= MACB_BIT(MPE);
- macb_writel(&macb, EMACB_NCR, netctl);
- if (iflag)
- enable_interrupts();
-
- frame = (MACB_BF(SOF, 1)
- | MACB_BF(RW, 2)
- | MACB_BF(PHYA, addr)
- | MACB_BF(REGA, reg)
- | MACB_BF(CODE, 2));
- macb_writel(&macb, EMACB_MAN, frame);
-
- do {
- netstat = macb_readl(&macb, EMACB_NSR);
- } while (!(netstat & MACB_BIT(IDLE)));
-
- frame = macb_readl(&macb, EMACB_MAN);
- *value = MACB_BFEXT(DATA, frame);
-
- iflag = disable_interrupts();
- netctl = macb_readl(&macb, EMACB_NCR);
- netctl &= ~MACB_BIT(MPE);
- macb_writel(&macb, EMACB_NCR, netctl);
- if (iflag)
- enable_interrupts();
-
- return 0;
-}
-
-int miiphy_write(unsigned char addr, unsigned char reg, unsigned short value)
-{
- unsigned long netctl;
- unsigned long netstat;
- unsigned long frame;
- int iflag;
-
- iflag = disable_interrupts();
- netctl = macb_readl(&macb, EMACB_NCR);
- netctl |= MACB_BIT(MPE);
- macb_writel(&macb, EMACB_NCR, netctl);
- if (iflag)
- enable_interrupts();
-
- frame = (MACB_BF(SOF, 1)
- | MACB_BF(RW, 1)
- | MACB_BF(PHYA, addr)
- | MACB_BF(REGA, reg)
- | MACB_BF(CODE, 2)
- | MACB_BF(DATA, value));
- macb_writel(&macb, EMACB_MAN, frame);
-
- do {
- netstat = macb_readl(&macb, EMACB_NSR);
- } while (!(netstat & MACB_BIT(IDLE)));
-
- iflag = disable_interrupts();
- netctl = macb_readl(&macb, EMACB_NCR);
- netctl &= ~MACB_BIT(MPE);
- macb_writel(&macb, EMACB_NCR, netctl);
- if (iflag)
- enable_interrupts();
-
return 0;
}
projects / karo-tx-uboot.git / blobdiff