#include <linux/gpio.h>
#include <linux/spinlock.h>
#include <linux/skbuff.h>
+#include <linux/rtl8366.h>
#ifdef CONFIG_RTL8366S_PHY_DEBUG_FS
#include <linux/debugfs.h>
#include "rtl8366_smi.h"
#define RTL8366_SMI_ACK_RETRY_COUNT 5
-#define RTL8366_SMI_CLK_DELAY 10 /* nsec */
static inline void rtl8366_smi_clk_delay(struct rtl8366_smi *smi)
{
- ndelay(RTL8366_SMI_CLK_DELAY);
+ ndelay(smi->clk_delay);
}
static void rtl8366_smi_start(struct rtl8366_smi *smi)
if (ack == 0)
break;
- if (++retry_cnt > RTL8366_SMI_ACK_RETRY_COUNT)
- return -EIO;
+ if (++retry_cnt > RTL8366_SMI_ACK_RETRY_COUNT) {
+ dev_err(smi->parent, "ACK timeout\n");
+ return -ETIMEDOUT;
+ }
} while (1);
return 0;
return rtl8366_smi_wait_for_ack(smi);
}
+static int rtl8366_smi_write_byte_noack(struct rtl8366_smi *smi, u8 data)
+{
+ rtl8366_smi_write_bits(smi, data, 8);
+ return 0;
+}
+
static int rtl8366_smi_read_byte0(struct rtl8366_smi *smi, u8 *data)
{
u32 t;
rtl8366_smi_start(smi);
/* send READ command */
- ret = rtl8366_smi_write_byte(smi, 0x0a << 4 | 0x04 << 1 | 0x01);
+ ret = rtl8366_smi_write_byte(smi, smi->cmd_read);
if (ret)
goto out;
}
EXPORT_SYMBOL_GPL(rtl8366_smi_read_reg);
-int rtl8366_smi_write_reg(struct rtl8366_smi *smi, u32 addr, u32 data)
+static int __rtl8366_smi_write_reg(struct rtl8366_smi *smi,
+ u32 addr, u32 data, bool ack)
{
unsigned long flags;
int ret;
rtl8366_smi_start(smi);
/* send WRITE command */
- ret = rtl8366_smi_write_byte(smi, 0x0a << 4 | 0x04 << 1 | 0x00);
+ ret = rtl8366_smi_write_byte(smi, smi->cmd_write);
if (ret)
goto out;
goto out;
/* write DATA[15:8] */
- ret = rtl8366_smi_write_byte(smi, data >> 8);
+ if (ack)
+ ret = rtl8366_smi_write_byte(smi, data >> 8);
+ else
+ ret = rtl8366_smi_write_byte_noack(smi, data >> 8);
if (ret)
goto out;
return ret;
}
+
+int rtl8366_smi_write_reg(struct rtl8366_smi *smi, u32 addr, u32 data)
+{
+ return __rtl8366_smi_write_reg(smi, addr, data, true);
+}
EXPORT_SYMBOL_GPL(rtl8366_smi_write_reg);
+int rtl8366_smi_write_reg_noack(struct rtl8366_smi *smi, u32 addr, u32 data)
+{
+ return __rtl8366_smi_write_reg(smi, addr, data, false);
+}
+EXPORT_SYMBOL_GPL(rtl8366_smi_write_reg_noack);
+
int rtl8366_smi_rmwr(struct rtl8366_smi *smi, u32 addr, u32 mask, u32 data)
{
u32 t;
return -ENOSPC;
}
-static int rtl8366_enable_vlan(struct rtl8366_smi *smi, int enable)
+int rtl8366_enable_vlan(struct rtl8366_smi *smi, int enable)
{
int err;
return err;
}
+EXPORT_SYMBOL_GPL(rtl8366_enable_vlan);
static int rtl8366_enable_vlan4k(struct rtl8366_smi *smi, int enable)
{
return 0;
}
+int rtl8366_enable_all_ports(struct rtl8366_smi *smi, int enable)
+{
+ int port;
+ int err;
+
+ for (port = 0; port < smi->num_ports; port++) {
+ err = smi->ops->enable_port(smi, port, enable);
+ if (err)
+ return err;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(rtl8366_enable_all_ports);
+
int rtl8366_reset_vlan(struct rtl8366_smi *smi)
{
struct rtl8366_vlan_mc vlanmc;
}
EXPORT_SYMBOL_GPL(rtl8366_smi_alloc);
-int rtl8366_smi_init(struct rtl8366_smi *smi)
+static int __rtl8366_smi_init(struct rtl8366_smi *smi, const char *name)
{
int err;
- if (!smi->ops)
- return -EINVAL;
-
- err = gpio_request(smi->gpio_sda, dev_name(smi->parent));
+ err = gpio_request(smi->gpio_sda, name);
if (err) {
- dev_err(smi->parent, "gpio_request failed for %u, err=%d\n",
+ printk(KERN_ERR "rtl8366_smi: gpio_request failed for %u, err=%d\n",
smi->gpio_sda, err);
goto err_out;
}
- err = gpio_request(smi->gpio_sck, dev_name(smi->parent));
+ err = gpio_request(smi->gpio_sck, name);
if (err) {
- dev_err(smi->parent, "gpio_request failed for %u, err=%d\n",
+ printk(KERN_ERR "rtl8366_smi: gpio_request failed for %u, err=%d\n",
smi->gpio_sck, err);
goto err_free_sda;
}
+ spin_lock_init(&smi->lock);
+ return 0;
+
+ err_free_sda:
+ gpio_free(smi->gpio_sda);
+ err_out:
+ return err;
+}
+
+static void __rtl8366_smi_cleanup(struct rtl8366_smi *smi)
+{
+ gpio_free(smi->gpio_sck);
+ gpio_free(smi->gpio_sda);
+}
+
+enum rtl8366_type rtl8366_smi_detect(struct rtl8366_platform_data *pdata)
+{
+ static struct rtl8366_smi smi;
+ enum rtl8366_type type = RTL8366_TYPE_UNKNOWN;
+ u32 reg = 0;
+
+ memset(&smi, 0, sizeof(smi));
+ smi.gpio_sda = pdata->gpio_sda;
+ smi.gpio_sck = pdata->gpio_sck;
+ smi.clk_delay = 10;
+ smi.cmd_read = 0xa9;
+ smi.cmd_write = 0xa8;
+
+ if (__rtl8366_smi_init(&smi, "rtl8366"))
+ goto out;
+
+ if (rtl8366_smi_read_reg(&smi, 0x5c, ®))
+ goto cleanup;
+
+ switch(reg) {
+ case 0x6027:
+ printk("Found an RTL8366S switch\n");
+ type = RTL8366_TYPE_S;
+ break;
+ case 0x5937:
+ printk("Found an RTL8366RB switch\n");
+ type = RTL8366_TYPE_RB;
+ break;
+ default:
+ printk("Found an Unknown RTL8366 switch (id=0x%04x)\n", reg);
+ break;
+ }
+
+cleanup:
+ __rtl8366_smi_cleanup(&smi);
+out:
+ return type;
+}
+
+int rtl8366_smi_init(struct rtl8366_smi *smi)
+{
+ int err;
+
+ if (!smi->ops)
+ return -EINVAL;
+
+ err = __rtl8366_smi_init(smi, dev_name(smi->parent));
+ if (err)
+ goto err_out;
+
spin_lock_init(&smi->lock);
dev_info(smi->parent, "using GPIO pins %u (SDA) and %u (SCK)\n",
if (err) {
dev_err(smi->parent, "VLAN initialization failed, err=%d\n",
err);
- goto err_disable_hw;
+ goto err_free_sck;
}
+ err = rtl8366_enable_all_ports(smi, 1);
+ if (err)
+ goto err_free_sck;
+
err = rtl8366_smi_mii_init(smi);
if (err)
goto err_free_sck;
return 0;
err_free_sck:
- gpio_free(smi->gpio_sck);
- err_free_sda:
- gpio_free(smi->gpio_sda);
+ __rtl8366_smi_cleanup(smi);
err_out:
return err;
}
projects / openwrt.git / blobdiff