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@@ -151,7 +151,7 @@ struct lpc32xx_eth_registers {
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#define SUPP_SPEED 0x00000100
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/* MCFG register bitfields/masks and offsets (see Table 292) */
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-#define MCFG_CLOCK_SELECT_MASK 0x0000001C
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+#define MCFG_RESET_MII_MGMT 0x00008000
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/* divide clock by 28 (see Table 293) */
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#define MCFG_CLOCK_SELECT_DIV28 0x0000001C
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@@ -168,9 +168,10 @@ struct lpc32xx_eth_registers {
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#define COMMAND_RXENABLE 0x00000001
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#define COMMAND_TXENABLE 0x00000002
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#define COMMAND_PASSRUNTFRAME 0x00000040
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+#define COMMAND_RMII 0x00000200
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#define COMMAND_FULL_DUPLEX 0x00000400
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/* Helper: general reset */
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-#define COMMAND_RESETS 0x0000001C
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+#define COMMAND_RESETS 0x00000038
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/* STATUS register bitfields/masks and offsets (see Table 283) */
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#define STATUS_RXSTATUS 0x00000001
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@@ -201,6 +202,7 @@ struct lpc32xx_eth_device {
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struct eth_device dev;
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struct lpc32xx_eth_registers *regs;
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struct lpc32xx_eth_buffers *bufs;
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+ bool phy_rmii;
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};
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#define LPC32XX_ETH_DEVICE_SIZE (sizeof(struct lpc32xx_eth_device))
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@@ -359,7 +361,10 @@ int lpc32xx_eth_phy_write(struct mii_dev *bus, int phy_addr, int dev_addr,
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static struct lpc32xx_eth_device lpc32xx_eth = {
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.regs = (struct lpc32xx_eth_registers *)LPC32XX_ETH_BASE,
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- .bufs = (struct lpc32xx_eth_buffers *)LPC32XX_ETH_BUFS
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+ .bufs = (struct lpc32xx_eth_buffers *)LPC32XX_ETH_BUFS,
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+#if defined(CONFIG_RMII)
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+ .phy_rmii = true,
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+#endif
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};
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#define TX_TIMEOUT 10000
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@@ -459,8 +464,22 @@ static int lpc32xx_eth_init(struct eth_device *dev)
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struct lpc32xx_eth_buffers *bufs = lpc32xx_eth_device->bufs;
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int index;
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- /* Release SOFT reset to let MII talk to PHY */
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- clrbits_le32(®s->mac1, MAC1_SOFT_RESET);
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+ /* Initial MAC initialization */
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+ writel(MAC1_PASS_ALL_RX_FRAMES, ®s->mac1);
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+ writel(MAC2_PAD_CRC_ENABLE | MAC2_CRC_ENABLE, ®s->mac2);
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+ writel(PKTSIZE_ALIGN, ®s->maxf);
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+
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+ /* Retries: 15 (0xF). Collision window: 57 (0x37). */
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+ writel(0x370F, ®s->clrt);
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+
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+ /* Set IP gap pt 2 to default 0x12 but pt 1 to non-default 0 */
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+ writel(0x0012, ®s->ipgr);
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+
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+ /* pass runt (smaller than 64 bytes) frames */
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+ if (lpc32xx_eth_device->phy_rmii)
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+ writel(COMMAND_PASSRUNTFRAME | COMMAND_RMII, ®s->command);
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+ else
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+ writel(COMMAND_PASSRUNTFRAME, ®s->command);
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/* Configure Full/Half Duplex mode */
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if (miiphy_duplex(dev->name, CONFIG_PHY_ADDR) == FULL) {
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@@ -477,20 +496,6 @@ static int lpc32xx_eth_init(struct eth_device *dev)
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else
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writel(0, ®s->supp);
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- /* Initial MAC initialization */
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- writel(MAC1_PASS_ALL_RX_FRAMES, ®s->mac1);
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- writel(MAC2_PAD_CRC_ENABLE | MAC2_CRC_ENABLE, ®s->mac2);
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- writel(PKTSIZE_ALIGN, ®s->maxf);
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-
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- /* Retries: 15 (0xF). Collision window: 57 (0x37). */
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- writel(0x370F, ®s->clrt);
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-
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- /* Set IP gap pt 2 to default 0x12 but pt 1 to non-default 0 */
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- writel(0x0012, ®s->ipgr);
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-
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- /* pass runt (smaller than 64 bytes) frames */
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- writel(COMMAND_PASSRUNTFRAME, ®s->command);
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-
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/* Save station address */
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writel((unsigned long) (dev->enetaddr[0] |
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(dev->enetaddr[1] << 8)), ®s->sa2);
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@@ -562,6 +567,8 @@ static int lpc32xx_eth_halt(struct eth_device *dev)
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#if defined(CONFIG_PHYLIB)
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int lpc32xx_eth_phylib_init(struct eth_device *dev, int phyid)
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{
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+ struct lpc32xx_eth_device *lpc32xx_eth_device =
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+ container_of(dev, struct lpc32xx_eth_device, dev);
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struct mii_dev *bus;
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struct phy_device *phydev;
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int ret;
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@@ -582,7 +589,11 @@ int lpc32xx_eth_phylib_init(struct eth_device *dev, int phyid)
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return -ENOMEM;
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}
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- phydev = phy_connect(bus, phyid, dev, PHY_INTERFACE_MODE_MII);
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+ if (lpc32xx_eth_device->phy_rmii)
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+ phydev = phy_connect(bus, phyid, dev, PHY_INTERFACE_MODE_RMII);
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+ else
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+ phydev = phy_connect(bus, phyid, dev, PHY_INTERFACE_MODE_MII);
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+
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if (!phydev) {
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printf("phy_connect failed\n");
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return -ENODEV;
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@@ -604,7 +615,7 @@ int lpc32xx_eth_initialize(bd_t *bis)
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* Set RMII management clock rate. With HCLK at 104 MHz and
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* a divider of 28, this will be 3.72 MHz.
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*/
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-
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+ writel(MCFG_RESET_MII_MGMT, ®s->mcfg);
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writel(MCFG_CLOCK_SELECT_DIV28, ®s->mcfg);
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/* Reset all MAC logic */
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@@ -630,7 +641,7 @@ int lpc32xx_eth_initialize(bd_t *bis)
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eth_register(dev);
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#if defined(CONFIG_PHYLIB)
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- lpc32xx_eth_phylib_init(dev, 0);
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+ lpc32xx_eth_phylib_init(dev, CONFIG_PHY_ADDR);
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#elif defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
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miiphy_register(dev->name, mii_reg_read, mii_reg_write);
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#endif
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