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ar71xx: ag71xx: detect the built-in switch of the AR934X SoCs

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@29551 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
juhosg 2011-12-15 22:25:28 +00:00
parent e61b2d1ed9
commit f97a00297e
1 changed files with 36 additions and 12 deletions
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48
target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_ar7240.c
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@ -25,6 +25,8 @@
#define AR7240_MASK_CTRL_REVISION_M BITM(8)
#define AR7240_MASK_CTRL_VERSION_M BITM(8)
#define AR7240_MASK_CTRL_VERSION_S 8
#define AR7240_MASK_CTRL_VERSION_AR7240 0x01
#define AR7240_MASK_CTRL_VERSION_AR934X 0x02
#define AR7240_MASK_CTRL_SOFT_RESET BIT(31)
#define AR7240_REG_MAC_ADDR0 0x20
@ -192,6 +194,9 @@
#define AR7240_PHY_ID1 0x004d
#define AR7240_PHY_ID2 0xd041
#define AR934X_PHY_ID1 0x004d
#define AR934X_PHY_ID2 0xd042
#define AR7240_MAX_VLANS 16
#define sw_to_ar7240(_dev) container_of(_dev, struct ar7240sw, swdev)
@ -201,6 +206,7 @@ struct ar7240sw {
struct ag71xx_switch_platform_data *swdata;
struct switch_dev swdev;
int num_ports;
u8 ver;
bool vlan;
u16 vlan_id[AR7240_MAX_VLANS];
u8 vlan_table[AR7240_MAX_VLANS];
@ -217,6 +223,16 @@ struct ar7240sw_hw_stat {
static DEFINE_MUTEX(reg_mutex);
static inline int sw_is_ar7240(struct ar7240sw *as)
{
return as->ver == AR7240_MASK_CTRL_VERSION_AR7240;
}
static inline int sw_is_ar934x(struct ar7240sw *as)
{
return as->ver == AR7240_MASK_CTRL_VERSION_AR934X;
}
static inline u32 ar7240sw_port_mask(struct ar7240sw *as, int port)
{
return BIT(port);
@ -851,12 +867,12 @@ static struct ar7240sw *ar7240_probe(struct ag71xx *ag)
u32 ctrl;
u16 phy_id1;
u16 phy_id2;
u8 ver;
int i;
phy_id1 = ar7240sw_phy_read(mii, 0, MII_PHYSID1);
phy_id2 = ar7240sw_phy_read(mii, 0, MII_PHYSID2);
if (phy_id1 != AR7240_PHY_ID1 || phy_id2 != AR7240_PHY_ID2) {
if ((phy_id1 != AR7240_PHY_ID1 || phy_id2 != AR7240_PHY_ID2) &&
(phy_id1 != AR934X_PHY_ID1 || phy_id2 != AR934X_PHY_ID2)) {
pr_err("%s: unknown phy id '%04x:%04x'\n",
ag->dev->name, phy_id1, phy_id2);
return NULL;
@ -869,27 +885,31 @@ static struct ar7240sw *ar7240_probe(struct ag71xx *ag)
as->mii_bus = mii;
as->swdata = pdata->switch_data;
swdev = &as->swdev;
ctrl = ar7240sw_reg_read(mii, AR7240_REG_MASK_CTRL);
ver = (ctrl >> AR7240_MASK_CTRL_VERSION_S) & AR7240_MASK_CTRL_VERSION_M;
if (ver != 1) {
as->ver = (ctrl >> AR7240_MASK_CTRL_VERSION_S) &
AR7240_MASK_CTRL_VERSION_M;
if (sw_is_ar7240(as)) {
swdev->name = "AR7240/AR9330 built-in switch";
} else if (sw_is_ar934x(as)) {
swdev->name = "AR934X built-in switch";
} else {
pr_err("%s: unsupported chip, ctrl=%08x\n",
ag->dev->name, ctrl);
return NULL;
goto err_free;
}
swdev = &as->swdev;
swdev->name = "AR7240 built-in switch";
swdev->ports = AR7240_NUM_PORTS - 1;
swdev->cpu_port = AR7240_PORT_CPU;
swdev->vlans = AR7240_MAX_VLANS;
swdev->ops = &ar7240_ops;
if (register_switch(&as->swdev, ag->dev) < 0) {
kfree(as);
return NULL;
}
if (register_switch(&as->swdev, ag->dev) < 0)
goto err_free;
pr_info("%s: Found an AR7240 built-in switch\n", ag->dev->name);
pr_info("%s: Found an %s\n", ag->dev->name, swdev->name);
/* initialize defaults */
for (i = 0; i < AR7240_MAX_VLANS; i++)
@ -898,6 +918,10 @@ static struct ar7240sw *ar7240_probe(struct ag71xx *ag)
as->vlan_table[0] = ar7240sw_port_mask_all(as);
return as;
err_free:
kfree(as);
return NULL;
}
static void link_function(struct work_struct *work) {