fec_mxc: add support for MX51 processor
The patch add support for the Freescale mx51 processor
to the FEC ethernet driver.
Signed-off-by: Stefano Babic <sbabic@denx.de>
Signed-off-by: Ben Warren <biggerbadderben@gmail.com>
diff --git a/drivers/net/fec_mxc.c b/drivers/net/fec_mxc.c
index 19116f2..446076f 100644
--- a/drivers/net/fec_mxc.c
+++ b/drivers/net/fec_mxc.c
@@ -108,6 +108,17 @@
return 0;
}
+static void fec_mii_setspeed(struct fec_priv *fec)
+{
+ /*
+ * Set MII_SPEED = (1/(mii_speed * 2)) * System Clock
+ * and do not drop the Preamble.
+ */
+ writel((((imx_get_fecclk() / 1000000) + 2) / 5) << 1,
+ &fec->eth->mii_speed);
+ debug("fec_init: mii_speed %#lx\n",
+ fec->eth->mii_speed);
+}
static int fec_miiphy_write(char *dev, uint8_t phyAddr, uint8_t regAddr,
uint16_t data)
{
@@ -236,7 +247,7 @@
fec->rdb_ptr = malloc(size * count + DB_DATA_ALIGNMENT);
p = (uint32_t)fec->rdb_ptr;
if (!p) {
- puts("fec_imx27: not enough malloc memory!\n");
+ puts("fec_mxc: not enough malloc memory\n");
return -ENOMEM;
}
memset((void *)p, 0, size * count + DB_DATA_ALIGNMENT);
@@ -299,6 +310,13 @@
static int fec_get_hwaddr(struct eth_device *dev, unsigned char *mac)
{
+/*
+ * The MX27 can store the mac address in internal eeprom
+ * This mechanism is not supported now by MX51
+ */
+#ifdef CONFIG_MX51
+ return -1;
+#else
struct iim_regs *iim = (struct iim_regs *)IMX_IIM_BASE;
int i;
@@ -306,10 +324,12 @@
mac[6-1-i] = readl(&iim->iim_bank_area0[IIM0_MAC + i]);
return is_valid_ether_addr(mac);
+#endif
}
-static int fec_set_hwaddr(struct eth_device *dev, unsigned char *mac)
+static int fec_set_hwaddr(struct eth_device *dev)
{
+ uchar *mac = dev->enetaddr;
struct fec_priv *fec = (struct fec_priv *)dev->priv;
writel(0, &fec->eth->iaddr1);
@@ -373,7 +393,7 @@
sizeof(struct fec_bd) + DB_ALIGNMENT);
base = (uint32_t)fec->base_ptr;
if (!base) {
- puts("fec_imx27: not enough malloc memory!\n");
+ puts("fec_mxc: not enough malloc memory\n");
return -ENOMEM;
}
memset((void *)base, 0, (2 + FEC_RBD_NUM) *
@@ -411,14 +431,8 @@
* Frame length=1518; MII mode;
*/
writel(0x05ee0024, &fec->eth->r_cntrl); /* FIXME 0x05ee0004 */
- /*
- * Set MII_SPEED = (1/(mii_speed * 2)) * System Clock
- * and do not drop the Preamble.
- */
- writel((((imx_get_ahbclk() / 1000000) + 2) / 5) << 1,
- &fec->eth->mii_speed);
- debug("fec_init: mii_speed %#lx\n",
- (((imx_get_ahbclk() / 1000000) + 2) / 5) << 1);
+
+ fec_mii_setspeed(fec);
}
/*
* Set Opcode/Pause Duration Register
@@ -460,6 +474,7 @@
miiphy_restart_aneg(dev);
fec_open(dev);
+ fec_set_hwaddr(dev);
return 0;
}
@@ -522,7 +537,7 @@
* Check for valid length of data.
*/
if ((length > 1500) || (length <= 0)) {
- printf("Payload (%d) to large!\n", length);
+ printf("Payload (%d) too large\n", length);
return -1;
}
@@ -651,22 +666,14 @@
static int fec_probe(bd_t *bd)
{
- struct pll_regs *pll = (struct pll_regs *)IMX_PLL_BASE;
struct eth_device *edev;
struct fec_priv *fec = &gfec;
- unsigned char ethaddr_str[20];
unsigned char ethaddr[6];
- char *tmp = getenv("ethaddr");
- char *end;
-
- /* enable FEC clock */
- writel(readl(&pll->pccr1) | PCCR1_HCLK_FEC, &pll->pccr1);
- writel(readl(&pll->pccr0) | PCCR0_FEC_EN, &pll->pccr0);
/* create and fill edev struct */
edev = (struct eth_device *)malloc(sizeof(struct eth_device));
if (!edev) {
- puts("fec_imx27: not enough malloc memory!\n");
+ puts("fec_mxc: not enough malloc memory\n");
return -ENOMEM;
}
edev->priv = fec;
@@ -702,14 +709,7 @@
* Frame length=1518; MII mode;
*/
writel(0x05ee0024, &fec->eth->r_cntrl); /* FIXME 0x05ee0004 */
- /*
- * Set MII_SPEED = (1/(mii_speed * 2)) * System Clock
- * and do not drop the Preamble.
- */
- writel((((imx_get_ahbclk() / 1000000) + 2) / 5) << 1,
- &fec->eth->mii_speed);
- debug("fec_init: mii_speed %#lx\n",
- (((imx_get_ahbclk() / 1000000) + 2) / 5) << 1);
+ fec_mii_setspeed(fec);
sprintf(edev->name, "FEC_MXC");
@@ -717,20 +717,11 @@
eth_register(edev);
- if ((NULL != tmp) && (12 <= strlen(tmp))) {
- int i;
- /* convert MAC from string to int */
- for (i = 0; i < 6; i++) {
- ethaddr[i] = tmp ? simple_strtoul(tmp, &end, 16) : 0;
- if (tmp)
- tmp = (*end) ? end + 1 : end;
- }
- } else if (fec_get_hwaddr(edev, ethaddr) == 0) {
+ if (fec_get_hwaddr(edev, ethaddr) == 0) {
printf("got MAC address from EEPROM: %pM\n", ethaddr);
- setenv("ethaddr", (char *)ethaddr_str);
+ memcpy(edev->enetaddr, ethaddr, 6);
+ fec_set_hwaddr(edev);
}
- memcpy(edev->enetaddr, ethaddr, 6);
- fec_set_hwaddr(edev, ethaddr);
return 0;
}