#include <rt305x_regs.h>
#include <rt305x_esw_platform.h>
-#define GPIO_PRUPOSE 0x60
-#define GPIO_MDIO_BIT (1<<7)
-#define RT305X_ESW_PHY_WRITE (1 << 13)
-#define RT305X_ESW_PHY_TOUT (5 * HZ)
-#define RT305X_ESW_PHY_CONTROL_0 0xC0
-#define RT305X_ESW_PHY_CONTROL_1 0xC4
+#define RT305X_ESW_REG_FCT0 0x08
+#define RT305X_ESW_REG_PFC1 0x14
+#define RT305X_ESW_REG_PVIDC(_n) (0x40 + 4 * (_n))
+#define RT305X_ESW_REG_VLANI(_n) (0x50 + 4 * (_n))
+#define RT305X_ESW_REG_VMSC(_n) (0x70 + 4 * (_n))
+#define RT305X_ESW_REG_FPA 0x84
+#define RT305X_ESW_REG_SOCPC 0x8c
+#define RT305X_ESW_REG_POC1 0x90
+#define RT305X_ESW_REG_POC2 0x94
+#define RT305X_ESW_REG_POC3 0x98
+#define RT305X_ESW_REG_SGC 0x9c
+#define RT305X_ESW_REG_PCR0 0xc0
+#define RT305X_ESW_REG_PCR1 0xc4
+#define RT305X_ESW_REG_FPA2 0xc8
+#define RT305X_ESW_REG_FCT2 0xcc
+#define RT305X_ESW_REG_SGC2 0xe4
+
+#define RT305X_ESW_PCR0_WT_NWAY_DATA_S 16
+#define RT305X_ESW_PCR0_WT_PHY_CMD BIT(13)
+#define RT305X_ESW_PCR0_CPU_PHY_REG_S 8
+
+#define RT305X_ESW_PCR1_WT_DONE BIT(0)
+
+#define RT305X_ESW_PHY_TIMEOUT (5 * HZ)
+
+#define RT305X_ESW_PVIDC_PVID_M 0xfff
+#define RT305X_ESW_PVIDC_PVID_S 12
+
+#define RT305X_ESW_VLANI_VID_M 0xfff
+#define RT305X_ESW_VLANI_VID_S 12
+
+#define RT305X_ESW_VMSC_MSC_M 0xff
+#define RT305X_ESW_VMSC_MSC_S 8
+
+#define RT305X_ESW_SOCPC_DISUN2CPU_S 0
+#define RT305X_ESW_SOCPC_DISMC2CPU_S 8
+#define RT305X_ESW_SOCPC_DISBC2CPU_S 16
+#define RT305X_ESW_SOCPC_CRC_PADDING BIT(25)
+
+#define RT305X_ESW_POC1_EN_BP_S 0
+#define RT305X_ESW_POC1_EN_FC_S 8
+#define RT305X_ESW_POC1_DIS_RMC2CPU_S 16
+#define RT305X_ESW_POC1_DIS_PORT_S 23
+
+#define RT305X_ESW_POC3_UNTAG_EN_S 0
+#define RT305X_ESW_POC3_ENAGING_S 8
+#define RT305X_ESW_POC3_DIS_UC_PAUSE_S 16
+
+#define RT305X_ESW_PORT0 0
+#define RT305X_ESW_PORT1 1
+#define RT305X_ESW_PORT2 2
+#define RT305X_ESW_PORT3 3
+#define RT305X_ESW_PORT4 4
+#define RT305X_ESW_PORT5 5
+#define RT305X_ESW_PORT6 6
+
+#define RT305X_ESW_PORTS_INTERNAL \
+ (BIT(RT305X_ESW_PORT0) | BIT(RT305X_ESW_PORT1) | \
+ BIT(RT305X_ESW_PORT2) | BIT(RT305X_ESW_PORT3) | \
+ BIT(RT305X_ESW_PORT4))
+
+#define RT305X_ESW_PORTS_NOCPU \
+ (RT305X_ESW_PORTS_INTERNAL | BIT(RT305X_ESW_PORT5))
+
+#define RT305X_ESW_PORTS_CPU BIT(RT305X_ESW_PORT6)
+
+#define RT305X_ESW_PORTS_ALL \
+ (RT305X_ESW_PORTS_NOCPU | RT305X_ESW_PORTS_CPU)
struct rt305x_esw {
void __iomem *base;
struct rt305x_esw_platform_data *pdata;
+ spinlock_t reg_rw_lock;
};
static inline void
-ramips_esw_wr(struct rt305x_esw *esw, u32 val, unsigned reg)
+rt305x_esw_wr(struct rt305x_esw *esw, u32 val, unsigned reg)
{
__raw_writel(val, esw->base + reg);
}
static inline u32
-ramips_esw_rr(struct rt305x_esw *esw, unsigned reg)
+rt305x_esw_rr(struct rt305x_esw *esw, unsigned reg)
{
return __raw_readl(esw->base + reg);
}
+static inline void
+rt305x_esw_rmw_raw(struct rt305x_esw *esw, unsigned reg, unsigned long mask,
+ unsigned long val)
+{
+ unsigned long t;
+
+ t = __raw_readl(esw->base + reg) & ~mask;
+ __raw_writel(t | val, esw->base + reg);
+}
+
static void
-ramips_enable_mdio(int s)
+rt305x_esw_rmw(struct rt305x_esw *esw, unsigned reg, unsigned long mask,
+ unsigned long val)
{
- u32 gpio = rt305x_sysc_rr(GPIO_PRUPOSE);
- if(s)
- gpio &= ~GPIO_MDIO_BIT;
- else
- gpio |= GPIO_MDIO_BIT;
- rt305x_sysc_wr(gpio, GPIO_PRUPOSE);
+ unsigned long flags;
+
+ spin_lock_irqsave(&esw->reg_rw_lock, flags);
+ rt305x_esw_rmw_raw(esw, reg, mask, val);
+ spin_unlock_irqrestore(&esw->reg_rw_lock, flags);
}
-u32
-mii_mgr_write(struct rt305x_esw *esw, u32 phy_addr, u32 phy_register,
- u32 write_data)
+static u32
+rt305x_mii_write(struct rt305x_esw *esw, u32 phy_addr, u32 phy_register,
+ u32 write_data)
{
- unsigned long volatile t_start = jiffies;
+ unsigned long t_start = jiffies;
int ret = 0;
- ramips_enable_mdio(1);
- while(1)
- {
- if(!(ramips_esw_rr(esw, RT305X_ESW_PHY_CONTROL_1) & (0x1 << 0)))
+ while (1) {
+ if (!(rt305x_esw_rr(esw, RT305X_ESW_REG_PCR1) &
+ RT305X_ESW_PCR1_WT_DONE))
break;
- if(time_after(jiffies, t_start + RT305X_ESW_PHY_TOUT))
- {
+ if (time_after(jiffies, t_start + RT305X_ESW_PHY_TIMEOUT)) {
ret = 1;
goto out;
}
}
- ramips_esw_wr(esw, ((write_data & 0xFFFF) << 16) | (phy_register << 8) |
- (phy_addr) | RT305X_ESW_PHY_WRITE, RT305X_ESW_PHY_CONTROL_0);
+
+ write_data &= 0xffff;
+ rt305x_esw_wr(esw,
+ (write_data << RT305X_ESW_PCR0_WT_NWAY_DATA_S) |
+ (phy_register << RT305X_ESW_PCR0_CPU_PHY_REG_S) |
+ (phy_addr) | RT305X_ESW_PCR0_WT_PHY_CMD,
+ RT305X_ESW_REG_PCR0);
+
t_start = jiffies;
- while(1)
- {
- if(ramips_esw_rr(esw, RT305X_ESW_PHY_CONTROL_1) & (0x1 << 0))
+ while (1) {
+ if (rt305x_esw_rr(esw, RT305X_ESW_REG_PCR1) &
+ RT305X_ESW_PCR1_WT_DONE)
break;
- if(time_after(jiffies, t_start + RT305X_ESW_PHY_TOUT))
- {
+
+ if (time_after(jiffies, t_start + RT305X_ESW_PHY_TIMEOUT)) {
ret = 1;
break;
}
}
out:
- ramips_enable_mdio(0);
- if(ret)
+ if (ret)
printk(KERN_ERR "ramips_eth: MDIO timeout\n");
return ret;
}
+static void
+rt305x_esw_set_vlan_id(struct rt305x_esw *esw, unsigned vlan, unsigned vid)
+{
+ unsigned s;
+
+ s = RT305X_ESW_VLANI_VID_S * (vlan % 2);
+ rt305x_esw_rmw(esw,
+ RT305X_ESW_REG_VLANI(vlan / 2),
+ RT305X_ESW_VLANI_VID_M << s,
+ (vid & RT305X_ESW_VLANI_VID_M) << s);
+}
+
+static void
+rt305x_esw_set_pvid(struct rt305x_esw *esw, unsigned port, unsigned pvid)
+{
+ unsigned s;
+
+ s = RT305X_ESW_PVIDC_PVID_S * (port % 2);
+ rt305x_esw_rmw(esw,
+ RT305X_ESW_REG_PVIDC(port / 2),
+ RT305X_ESW_PVIDC_PVID_M << s,
+ (pvid & RT305X_ESW_PVIDC_PVID_M) << s);
+}
+
+static void
+rt305x_esw_set_vmsc(struct rt305x_esw *esw, unsigned vlan, unsigned msc)
+{
+ unsigned s;
+
+ s = RT305X_ESW_VMSC_MSC_S * (vlan % 4);
+ rt305x_esw_rmw(esw,
+ RT305X_ESW_REG_VMSC(vlan / 4),
+ RT305X_ESW_VMSC_MSC_M << s,
+ (msc & RT305X_ESW_VMSC_MSC_M) << s);
+}
+
static void
rt305x_esw_hw_init(struct rt305x_esw *esw)
{
int i;
/* vodoo from original driver */
- ramips_esw_wr(esw, 0xC8A07850, 0x08);
- ramips_esw_wr(esw, 0x00000000, 0xe4);
- ramips_esw_wr(esw, 0x00405555, 0x14);
- ramips_esw_wr(esw, 0x00002001, 0x50);
- ramips_esw_wr(esw, 0x00007f7f, 0x90);
- ramips_esw_wr(esw, 0x00007f3f, 0x98);
- ramips_esw_wr(esw, 0x00d6500c, 0xcc);
- ramips_esw_wr(esw, 0x0008a301, 0x9c);
- ramips_esw_wr(esw, 0x02404040, 0x8c);
- ramips_esw_wr(esw, 0x00001002, 0x48);
- ramips_esw_wr(esw, 0x3f502b28, 0xc8);
- ramips_esw_wr(esw, 0x00000000, 0x84);
-
- mii_mgr_write(esw, 0, 31, 0x8000);
- for(i = 0; i < 5; i++)
- {
- mii_mgr_write(esw, i, 0, 0x3100); //TX10 waveform coefficient
- mii_mgr_write(esw, i, 26, 0x1601); //TX10 waveform coefficient
- mii_mgr_write(esw, i, 29, 0x7058); //TX100/TX10 AD/DA current bias
- mii_mgr_write(esw, i, 30, 0x0018); //TX100 slew rate control
+ rt305x_esw_wr(esw, 0xC8A07850, RT305X_ESW_REG_FCT0);
+ rt305x_esw_wr(esw, 0x00000000, RT305X_ESW_REG_SGC2);
+ rt305x_esw_wr(esw, 0x00405555, RT305X_ESW_REG_PFC1);
+
+ /* Enable Back Pressure, and Flow Control */
+ rt305x_esw_wr(esw,
+ ((RT305X_ESW_PORTS_ALL << RT305X_ESW_POC1_EN_BP_S) |
+ (RT305X_ESW_PORTS_ALL << RT305X_ESW_POC1_EN_FC_S)),
+ RT305X_ESW_REG_POC1);
+
+ /* Enable Aging, and VLAN TAG removal */
+ rt305x_esw_wr(esw,
+ ((RT305X_ESW_PORTS_ALL << RT305X_ESW_POC3_ENAGING_S) |
+ (RT305X_ESW_PORTS_NOCPU << RT305X_ESW_POC3_UNTAG_EN_S)),
+ RT305X_ESW_REG_POC3);
+
+ rt305x_esw_wr(esw, 0x00d6500c, RT305X_ESW_REG_FCT2);
+ rt305x_esw_wr(esw, 0x0008a301, RT305X_ESW_REG_SGC);
+
+ /* Setup SoC Port control register */
+ rt305x_esw_wr(esw,
+ (RT305X_ESW_SOCPC_CRC_PADDING |
+ (RT305X_ESW_PORTS_CPU << RT305X_ESW_SOCPC_DISUN2CPU_S) |
+ (RT305X_ESW_PORTS_CPU << RT305X_ESW_SOCPC_DISMC2CPU_S) |
+ (RT305X_ESW_PORTS_CPU << RT305X_ESW_SOCPC_DISBC2CPU_S)),
+ RT305X_ESW_REG_SOCPC);
+
+ rt305x_esw_set_pvid(esw, RT305X_ESW_PORT4, 2);
+ rt305x_esw_set_pvid(esw, RT305X_ESW_PORT5, 1);
+ rt305x_esw_wr(esw, 0x3f502b28, RT305X_ESW_REG_FPA2);
+ rt305x_esw_wr(esw, 0x00000000, RT305X_ESW_REG_FPA);
+
+ rt305x_mii_write(esw, 0, 31, 0x8000);
+ for (i = 0; i < 5; i++) {
+ /* TX10 waveform coefficient */
+ rt305x_mii_write(esw, i, 0, 0x3100);
+ /* TX10 waveform coefficient */
+ rt305x_mii_write(esw, i, 26, 0x1601);
+ /* TX100/TX10 AD/DA current bias */
+ rt305x_mii_write(esw, i, 29, 0x7058);
+ /* TX100 slew rate control */
+ rt305x_mii_write(esw, i, 30, 0x0018);
}
+
/* PHY IOT */
- mii_mgr_write(esw, 0, 31, 0x0); //select global register
- mii_mgr_write(esw, 0, 22, 0x052f); //tune TP_IDL tail and head waveform
- mii_mgr_write(esw, 0, 17, 0x0fe0); //set TX10 signal amplitude threshold to minimum
- mii_mgr_write(esw, 0, 18, 0x40ba); //set squelch amplitude to higher threshold
- mii_mgr_write(esw, 0, 14, 0x65); //longer TP_IDL tail length
- mii_mgr_write(esw, 0, 31, 0x8000); //select local register
-
- /* Port 5 Disabled */
- rt305x_sysc_wr(rt305x_sysc_rr(0x60) | (1 << 9), 0x60); //set RGMII to GPIO mode (GPIO41-GPIO50)
- rt305x_sysc_wr(0xfff, 0x674); //GPIO41-GPIO50 output mode
- rt305x_sysc_wr(0x0, 0x670); //GPIO41-GPIO50 output low
+ /* select global register */
+ rt305x_mii_write(esw, 0, 31, 0x0);
+ /* tune TP_IDL tail and head waveform */
+ rt305x_mii_write(esw, 0, 22, 0x052f);
+ /* set TX10 signal amplitude threshold to minimum */
+ rt305x_mii_write(esw, 0, 17, 0x0fe0);
+ /* set squelch amplitude to higher threshold */
+ rt305x_mii_write(esw, 0, 18, 0x40ba);
+ /* longer TP_IDL tail length */
+ rt305x_mii_write(esw, 0, 14, 0x65);
+ /* select local register */
+ rt305x_mii_write(esw, 0, 31, 0x8000);
/* set default vlan */
- ramips_esw_wr(esw, 0x2001, 0x50);
- ramips_esw_wr(esw, 0x504f, 0x70);
+ rt305x_esw_set_vlan_id(esw, 0, 1);
+ rt305x_esw_set_vlan_id(esw, 1, 2);
+ rt305x_esw_set_vmsc(esw, 0,
+ (BIT(RT305X_ESW_PORT0) | BIT(RT305X_ESW_PORT1) |
+ BIT(RT305X_ESW_PORT2) | BIT(RT305X_ESW_PORT3) |
+ BIT(RT305X_ESW_PORT6)));
+ rt305x_esw_set_vmsc(esw, 1,
+ (BIT(RT305X_ESW_PORT4) | BIT(RT305X_ESW_PORT6)));
+ rt305x_esw_set_vmsc(esw, 2, 0);
+ rt305x_esw_set_vmsc(esw, 3, 0);
}
static int
return -ENOMEM;
}
- esw = kzalloc(sizeof (struct rt305x_esw), GFP_KERNEL);
+ esw = kzalloc(sizeof(struct rt305x_esw), GFP_KERNEL);
if (!esw) {
dev_err(&pdev->dev, "no memory for private data\n");
return -ENOMEM;
platform_set_drvdata(pdev, esw);
esw->pdata = pdata;
+ spin_lock_init(&esw->reg_rw_lock);
rt305x_esw_hw_init(esw);
return 0;
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