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authorMarek Vasut <marek.vasut@gmail.com>2011-09-16 01:13:47 +0200
committerAlbert ARIBAUD <albert.u.boot@aribaud.net>2011-09-30 22:01:01 +0200
commit9e27e9dca14a3bca74a5dcc87231769bc6a7117f (patch)
treef4fe8829171ff3c74cb0b5e95fb9c2f35a3bf376 /drivers/net/fec_mxc.c
parentd133b881b9ed24c416cd1f2d7c147eb42e7956cd (diff)
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FEC: Allow multiple FECes
This patch allows user to register multiple FEC controllers. To preserve compatibility with older boards, the mxcfec_register() call is still in place. To use multiple controllers, new macro is in place, the mxcfec_register_multi(), which takes more arguments. The syntax is: mxcfec_register_multi(bd, FEC ID, FEC PHY ID on the MII bus, base address); To disable the fecmxc_register() compatibility stuff, define the macro CONFIG_FEC_MXC_MULTI. This will remove the requirement for defining IMX_FEC_BASE and CONFIG_FEC_MXC_PHYADDR. Signed-off-by: Marek Vasut <marek.vasut@gmail.com> Cc: Ben Warren <biggerbadderben@gmail.com> Cc: Stefano Babic <sbabic@denx.de> Cc: Wolfgang Denk <wd@denx.de> Cc: Detlev Zundel <dzu@denx.de>
Diffstat (limited to 'drivers/net/fec_mxc.c')
-rw-r--r--drivers/net/fec_mxc.c79
1 files changed, 49 insertions, 30 deletions
diff --git a/drivers/net/fec_mxc.c b/drivers/net/fec_mxc.c
index d448496..3c593aa 100644
--- a/drivers/net/fec_mxc.c
+++ b/drivers/net/fec_mxc.c
@@ -51,18 +51,6 @@ struct nbuf {
uint8_t head[16]; /**< MAC header(6 + 6 + 2) + 2(aligned) */
};
-struct fec_priv gfec = {
- .eth = (struct ethernet_regs *)IMX_FEC_BASE,
- .xcv_type = MII100,
- .rbd_base = NULL,
- .rbd_index = 0,
- .tbd_base = NULL,
- .tbd_index = 0,
- .bd = NULL,
- .rdb_ptr = NULL,
- .base_ptr = NULL,
-};
-
/*
* MII-interface related functions
*/
@@ -164,26 +152,27 @@ static int fec_miiphy_write(const char *dev, uint8_t phyAddr, uint8_t regAddr,
static int miiphy_restart_aneg(struct eth_device *dev)
{
+ struct fec_priv *fec = (struct fec_priv *)dev->priv;
+
/*
* Wake up from sleep if necessary
* Reset PHY, then delay 300ns
*/
#ifdef CONFIG_MX27
- miiphy_write(dev->name, CONFIG_FEC_MXC_PHYADDR, MII_DCOUNTER, 0x00FF);
+ miiphy_write(dev->name, fec->phy_id, MII_DCOUNTER, 0x00FF);
#endif
- miiphy_write(dev->name, CONFIG_FEC_MXC_PHYADDR, MII_BMCR,
+ miiphy_write(dev->name, fec->phy_id, MII_BMCR,
BMCR_RESET);
udelay(1000);
/*
* Set the auto-negotiation advertisement register bits
*/
- miiphy_write(dev->name, CONFIG_FEC_MXC_PHYADDR, MII_ADVERTISE,
+ miiphy_write(dev->name, fec->phy_id, MII_ADVERTISE,
LPA_100FULL | LPA_100HALF | LPA_10FULL |
LPA_10HALF | PHY_ANLPAR_PSB_802_3);
- miiphy_write(dev->name, CONFIG_FEC_MXC_PHYADDR, MII_BMCR,
+ miiphy_write(dev->name, fec->phy_id, MII_BMCR,
BMCR_ANENABLE | BMCR_ANRESTART);
-
return 0;
}
@@ -191,6 +180,7 @@ static int miiphy_wait_aneg(struct eth_device *dev)
{
uint32_t start;
uint16_t status;
+ struct fec_priv *fec = (struct fec_priv *)dev->priv;
/*
* Wait for AN completion
@@ -202,7 +192,7 @@ static int miiphy_wait_aneg(struct eth_device *dev)
return -1;
}
- if (miiphy_read(dev->name, CONFIG_FEC_MXC_PHYADDR,
+ if (miiphy_read(dev->name, fec->phy_id,
MII_BMSR, &status)) {
printf("%s: Autonegotiation failed. status: 0x%04x\n",
dev->name, status);
@@ -390,8 +380,8 @@ static int fec_open(struct eth_device *edev)
#endif
miiphy_wait_aneg(edev);
- miiphy_speed(edev->name, CONFIG_FEC_MXC_PHYADDR);
- miiphy_duplex(edev->name, CONFIG_FEC_MXC_PHYADDR);
+ miiphy_speed(edev->name, fec->phy_id);
+ miiphy_duplex(edev->name, fec->phy_id);
/*
* Enable SmartDMA receive task
@@ -406,7 +396,9 @@ static int fec_init(struct eth_device *dev, bd_t* bd)
{
uint32_t base;
struct fec_priv *fec = (struct fec_priv *)dev->priv;
+ uint32_t mib_ptr = (uint32_t)&fec->eth->rmon_t_drop;
uint32_t rcntrl;
+ int i;
/* Initialize MAC address */
fec_set_hwaddr(dev);
@@ -477,9 +469,8 @@ static int fec_init(struct eth_device *dev, bd_t* bd)
/* clear MIB RAM */
- long *mib_ptr = (long *)(IMX_FEC_BASE + 0x200);
- while (mib_ptr <= (long *)(IMX_FEC_BASE + 0x2FC))
- *mib_ptr++ = 0;
+ for (i = mib_ptr; i <= mib_ptr + 0xfc; i += 4)
+ writel(0, i);
/* FIFO receive start register */
writel(0x520, &fec->eth->r_fstart);
@@ -513,7 +504,7 @@ static int fec_init(struct eth_device *dev, bd_t* bd)
*/
static void fec_halt(struct eth_device *dev)
{
- struct fec_priv *fec = &gfec;
+ struct fec_priv *fec = (struct fec_priv *)dev->priv;
int counter = 0xffff;
/*
@@ -694,19 +685,28 @@ static int fec_recv(struct eth_device *dev)
return len;
}
-static int fec_probe(bd_t *bd)
+static int fec_probe(bd_t *bd, int dev_id, int phy_id, uint32_t base_addr)
{
struct eth_device *edev;
- struct fec_priv *fec = &gfec;
+ struct fec_priv *fec;
unsigned char ethaddr[6];
/* create and fill edev struct */
edev = (struct eth_device *)malloc(sizeof(struct eth_device));
if (!edev) {
- puts("fec_mxc: not enough malloc memory\n");
+ puts("fec_mxc: not enough malloc memory for eth_device\n");
+ return -ENOMEM;
+ }
+
+ fec = (struct fec_priv *)malloc(sizeof(struct fec_priv));
+ if (!fec) {
+ puts("fec_mxc: not enough malloc memory for fec_priv\n");
return -ENOMEM;
}
+
memset(edev, 0, sizeof(*edev));
+ memset(fec, 0, sizeof(*fec));
+
edev->priv = fec;
edev->init = fec_init;
edev->send = fec_send;
@@ -714,7 +714,7 @@ static int fec_probe(bd_t *bd)
edev->halt = fec_halt;
edev->write_hwaddr = fec_set_hwaddr;
- fec->eth = (struct ethernet_regs *)IMX_FEC_BASE;
+ fec->eth = (struct ethernet_regs *)base_addr;
fec->bd = bd;
fec->xcv_type = CONFIG_FEC_XCV_TYPE;
@@ -744,7 +744,14 @@ static int fec_probe(bd_t *bd)
FEC_RCNTRL_MII_MODE, &fec->eth->r_cntrl);
fec_mii_setspeed(fec);
- sprintf(edev->name, "FEC");
+ if (dev_id == -1) {
+ sprintf(edev->name, "FEC");
+ fec->dev_id = 0;
+ } else {
+ sprintf(edev->name, "FEC%i", dev_id);
+ fec->dev_id = dev_id;
+ }
+ fec->phy_id = phy_id;
miiphy_register(edev->name, fec_miiphy_read, fec_miiphy_write);
@@ -758,12 +765,24 @@ static int fec_probe(bd_t *bd)
return 0;
}
+#ifndef CONFIG_FEC_MXC_MULTI
int fecmxc_initialize(bd_t *bd)
{
int lout = 1;
debug("eth_init: fec_probe(bd)\n");
- lout = fec_probe(bd);
+ lout = fec_probe(bd, -1, CONFIG_FEC_MXC_PHYADDR, IMX_FEC_BASE);
+
+ return lout;
+}
+#endif
+
+int fecmxc_initialize_multi(bd_t *bd, int dev_id, int phy_id, uint32_t addr)
+{
+ int lout = 1;
+
+ debug("eth_init: fec_probe(bd, %i, %i) @ %08x\n", dev_id, phy_id, addr);
+ lout = fec_probe(bd, dev_id, phy_id, addr);
return lout;
}