Mirrors/u-boot
2
0
Fork 0
mirror of https://github.com/AsahiLinux/u-boot synced 2024-11-10 23:24:38 +00:00
Code Issues Projects Releases Packages Wiki Activity

fec_mxc: add support for MX51 processor

Browse source 
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>
This commit is contained in:
Stefano Babic 2010-02-01 14:51:30 +01:00 committed by Ben Warren
parent e66b19ce6d
commit 4294b2485b
1 changed files with 32 additions and 41 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

73
drivers/net/fec_mxc.c
View file

@ -108,6 +108,17 @@ static int fec_miiphy_read(char *dev, uint8_t phyAddr, uint8_t regAddr,
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 @@ static int fec_rbd_init(struct fec_priv *fec, int count, int size)
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 void fec_rbd_clean(int last, struct fec_bd *pRbd)
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 @@ static int fec_get_hwaddr(struct eth_device *dev, unsigned char *mac)
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 @@ static int fec_init(struct eth_device *dev, bd_t* bd)
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 @@ static int fec_init(struct eth_device *dev, bd_t* bd)
* 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 @@ static int fec_init(struct eth_device *dev, bd_t* bd)
miiphy_restart_aneg(dev);
fec_open(dev);
fec_set_hwaddr(dev);
return 0;
}
@ -522,7 +537,7 @@ static int fec_send(struct eth_device *dev, volatile void* packet, int length)
* 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_recv(struct eth_device *dev)
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 @@ static int fec_probe(bd_t *bd)
* 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 @@ static int fec_probe(bd_t *bd)
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;
}