#include <linux/gpio.h>
#include <linux/spinlock.h>
#include <linux/skbuff.h>
-
-#ifdef CONFIG_RTL8366S_PHY_DEBUG_FS
+#include <linux/of.h>
+#include <linux/of_platform.h>
+#include <linux/of_gpio.h>
+#include <linux/rtl8366.h>
+#include <linux/version.h>
+#include <linux/of_mdio.h>
+
+#ifdef CONFIG_RTL8366_SMI_DEBUG_FS
#include <linux/debugfs.h>
#endif
#include "rtl8366_smi.h"
#define RTL8366_SMI_ACK_RETRY_COUNT 5
-#define RTL8366_SMI_CLK_DELAY 10 /* nsec */
+
+#define RTL8366_SMI_HW_STOP_DELAY 25 /* msecs */
+#define RTL8366_SMI_HW_START_DELAY 100 /* msecs */
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;
}
EXPORT_SYMBOL_GPL(rtl8366_smi_rmwr);
+static int rtl8366_reset(struct rtl8366_smi *smi)
+{
+ if (smi->hw_reset) {
+ smi->hw_reset(true);
+ msleep(RTL8366_SMI_HW_STOP_DELAY);
+ smi->hw_reset(false);
+ msleep(RTL8366_SMI_HW_START_DELAY);
+ return 0;
+ }
+
+ return smi->ops->reset_chip(smi);
+}
+
static int rtl8366_mc_is_used(struct rtl8366_smi *smi, int mc_index, int *used)
{
int err;
return rtl8366_enable_vlan(smi, 1);
}
-#ifdef CONFIG_RTL8366S_PHY_DEBUG_FS
+#ifdef CONFIG_RTL8366_SMI_DEBUG_FS
int rtl8366_debugfs_open(struct inode *inode, struct file *file)
{
file->private_data = inode->i_private;
buf[len - 1] = '\0';
- if (strict_strtoul(buf, 16, &data)) {
+ if (kstrtoul(buf, 16, &data)) {
dev_err(smi->parent, "Invalid reg value %s\n", buf);
} else {
err = rtl8366_smi_write_reg(smi, reg, data);
#else
static inline void rtl8366_debugfs_init(struct rtl8366_smi *smi) {}
static inline void rtl8366_debugfs_remove(struct rtl8366_smi *smi) {}
-#endif /* CONFIG_RTL8366S_PHY_DEBUG_FS */
+#endif /* CONFIG_RTL8366_SMI_DEBUG_FS */
static int rtl8366_smi_mii_init(struct rtl8366_smi *smi)
{
int ret;
- int i;
+
+#ifdef CONFIG_OF
+ struct device_node *np = NULL;
+
+ np = of_get_child_by_name(smi->parent->of_node, "mdio-bus");
+#endif
smi->mii_bus = mdiobus_alloc();
if (smi->mii_bus == NULL) {
dev_name(smi->parent));
smi->mii_bus->parent = smi->parent;
smi->mii_bus->phy_mask = ~(0x1f);
- smi->mii_bus->irq = smi->mii_irq;
- for (i = 0; i < PHY_MAX_ADDR; i++)
- smi->mii_irq[i] = PHY_POLL;
+#if LINUX_VERSION_CODE < KERNEL_VERSION(4,5,0)
+ {
+ int i;
+ smi->mii_bus->irq = smi->mii_irq;
+ for (i = 0; i < PHY_MAX_ADDR; i++)
+ smi->mii_irq[i] = PHY_POLL;
+ }
+#endif
+
+#ifdef CONFIG_OF
+ if (np)
+ ret = of_mdiobus_register(smi->mii_bus, np);
+ else
+#endif
+ ret = mdiobus_register(smi->mii_bus);
- ret = mdiobus_register(smi->mii_bus);
if (ret)
goto err_free;
mdiobus_free(smi->mii_bus);
}
+int rtl8366_sw_reset_switch(struct switch_dev *dev)
+{
+ struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
+ int err;
+
+ err = rtl8366_reset(smi);
+ if (err)
+ return err;
+
+ err = smi->ops->setup(smi);
+ if (err)
+ return err;
+
+ err = rtl8366_reset_vlan(smi);
+ if (err)
+ return err;
+
+ err = rtl8366_enable_vlan(smi, 1);
+ if (err)
+ return err;
+
+ return rtl8366_enable_all_ports(smi, 1);
+}
+EXPORT_SYMBOL_GPL(rtl8366_sw_reset_switch);
+
int rtl8366_sw_get_port_pvid(struct switch_dev *dev, int port, int *val)
{
struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
}
EXPORT_SYMBOL_GPL(rtl8366_sw_get_port_mib);
+int rtl8366_sw_get_port_stats(struct switch_dev *dev, int port,
+ struct switch_port_stats *stats,
+ int txb_id, int rxb_id)
+{
+ struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
+ unsigned long long counter = 0;
+ int ret;
+
+ if (port >= smi->num_ports)
+ return -EINVAL;
+
+ ret = smi->ops->get_mib_counter(smi, txb_id, port, &counter);
+ if (ret)
+ return ret;
+
+ stats->tx_bytes = counter;
+
+ ret = smi->ops->get_mib_counter(smi, rxb_id, port, &counter);
+ if (ret)
+ return ret;
+
+ stats->rx_bytes = counter;
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(rtl8366_sw_get_port_stats);
+
int rtl8366_sw_get_vlan_info(struct switch_dev *dev,
const struct switch_attr *attr,
struct switch_val *val)
port = &val->value.ports[0];
for (i = 0; i < val->len; i++, port++) {
+ int pvid = 0;
member |= BIT(port->id);
if (!(port->flags & BIT(SWITCH_PORT_FLAG_TAGGED)))
* To ensure that we have a valid MC entry for this VLAN,
* initialize the port VLAN ID here.
*/
- err = rtl8366_set_pvid(smi, port->id, val->port_vlan);
+ err = rtl8366_get_pvid(smi, port->id, &pvid);
if (err < 0)
return err;
+ if (pvid == 0) {
+ err = rtl8366_set_pvid(smi, port->id, val->port_vlan);
+ if (err < 0)
+ return err;
+ }
}
return rtl8366_set_vlan(smi, val->port_vlan, member, untag, 0);
}
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);
+ /* start the switch */
+ if (smi->hw_reset) {
+ smi->hw_reset(false);
+ msleep(RTL8366_SMI_HW_START_DELAY);
+ }
+
+ return 0;
+
+ err_free_sda:
+ gpio_free(smi->gpio_sda);
+ err_out:
+ return err;
+}
+
+static void __rtl8366_smi_cleanup(struct rtl8366_smi *smi)
+{
+ if (smi->hw_reset)
+ smi->hw_reset(true);
+
+ 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;
+
dev_info(smi->parent, "using GPIO pins %u (SDA) and %u (SCK)\n",
smi->gpio_sda, smi->gpio_sck);
goto err_free_sck;
}
+ err = rtl8366_reset(smi);
+ if (err)
+ goto err_free_sck;
+
err = smi->ops->setup(smi);
if (err) {
dev_err(smi->parent, "chip setup failed, err=%d\n", err);
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_disable_hw;
+ goto err_free_sck;
err = rtl8366_smi_mii_init(smi);
if (err)
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;
}
{
rtl8366_debugfs_remove(smi);
rtl8366_smi_mii_cleanup(smi);
- gpio_free(smi->gpio_sck);
- gpio_free(smi->gpio_sda);
+ __rtl8366_smi_cleanup(smi);
}
EXPORT_SYMBOL_GPL(rtl8366_smi_cleanup);
+#ifdef CONFIG_OF
+int rtl8366_smi_probe_of(struct platform_device *pdev, struct rtl8366_smi *smi)
+{
+ int sck = of_get_named_gpio(pdev->dev.of_node, "gpio-sck", 0);
+ int sda = of_get_named_gpio(pdev->dev.of_node, "gpio-sda", 0);
+
+ if (!gpio_is_valid(sck) || !gpio_is_valid(sda)) {
+ dev_err(&pdev->dev, "gpios missing in devictree\n");
+ return -EINVAL;
+ }
+
+ smi->gpio_sda = sda;
+ smi->gpio_sck = sck;
+
+ return 0;
+}
+#else
+static inline int rtl8366_smi_probe_of(struct platform_device *pdev, struct rtl8366_smi *smi)
+{
+ return -ENODEV;
+}
+#endif
+
+int rtl8366_smi_probe_plat(struct platform_device *pdev, struct rtl8366_smi *smi)
+{
+ struct rtl8366_platform_data *pdata = pdev->dev.platform_data;
+
+ if (!pdev->dev.platform_data) {
+ dev_err(&pdev->dev, "no platform data specified\n");
+ return -EINVAL;
+ }
+
+ smi->gpio_sda = pdata->gpio_sda;
+ smi->gpio_sck = pdata->gpio_sck;
+ smi->hw_reset = pdata->hw_reset;
+
+ return 0;
+}
+
+
+struct rtl8366_smi *rtl8366_smi_probe(struct platform_device *pdev)
+{
+ struct rtl8366_smi *smi;
+ int err;
+
+ smi = rtl8366_smi_alloc(&pdev->dev);
+ if (!smi)
+ return NULL;
+
+ if (pdev->dev.of_node)
+ err = rtl8366_smi_probe_of(pdev, smi);
+ else
+ err = rtl8366_smi_probe_plat(pdev, smi);
+
+ if (err)
+ goto free_smi;
+
+ return smi;
+
+free_smi:
+ kfree(smi);
+ return NULL;
+}
+EXPORT_SYMBOL_GPL(rtl8366_smi_probe);
+
MODULE_DESCRIPTION("Realtek RTL8366 SMI interface driver");
MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org>");
MODULE_LICENSE("GPL v2");
projects / openwrt / staging / chunkeey.git / blobdiff