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/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/device.h>
#include <linux/delay.h>
#include <linux/of_mdio.h>
#include <linux/of_platform.h>
#include <linux/of_gpio.h>
#include "./rtl8367c/include/rtk_switch.h"
#include "./rtl8367c/include/port.h"
#include "./rtl8367c/include/vlan.h"
#include "./rtl8367c/include/rtl8367c_asicdrv_port.h"
struct rtk_gsw {
struct device *dev;
struct mii_bus *bus;
int reset_pin;
};
static struct rtk_gsw *_gsw;
extern int gsw_debug_proc_init(void);
extern void gsw_debug_proc_exit(void);
#ifdef CONFIG_SWCONFIG
extern int rtl8367s_swconfig_init( void (*reset_func)(void) );
#endif
/*mii_mgr_read/mii_mgr_write is the callback API for rtl8367 driver*/
unsigned int mii_mgr_read(unsigned int phy_addr,unsigned int phy_register,unsigned int *read_data)
{
struct mii_bus *bus = _gsw->bus;
mutex_lock_nested(&bus->mdio_lock, MDIO_MUTEX_NESTED);
*read_data = bus->read(bus, phy_addr, phy_register);
mutex_unlock(&bus->mdio_lock);
return 0;
}
unsigned int mii_mgr_write(unsigned int phy_addr,unsigned int phy_register,unsigned int write_data)
{
struct mii_bus *bus = _gsw->bus;
mutex_lock_nested(&bus->mdio_lock, MDIO_MUTEX_NESTED);
bus->write(bus, phy_addr, phy_register, write_data);
mutex_unlock(&bus->mdio_lock);
return 0;
}
static int rtl8367s_hw_reset(void)
{
struct rtk_gsw *gsw = _gsw;
int ret;
if (gsw->reset_pin < 0)
return 0;
ret = devm_gpio_request(gsw->dev, gsw->reset_pin, "mediatek,reset-pin");
if (ret)
printk("fail to devm_gpio_request\n");
gpio_direction_output(gsw->reset_pin, 0);
usleep_range(1000, 1100);
gpio_set_value(gsw->reset_pin, 1);
mdelay(500);
devm_gpio_free(gsw->dev, gsw->reset_pin);
return 0;
}
static int rtl8367s_vlan_config(int want_at_p0)
{
rtk_vlan_cfg_t vlan1, vlan2;
/* Set LAN/WAN VLAN partition */
memset(&vlan1, 0x00, sizeof(rtk_vlan_cfg_t));
RTK_PORTMASK_PORT_SET(vlan1.mbr, EXT_PORT0);
RTK_PORTMASK_PORT_SET(vlan1.mbr, UTP_PORT1);
RTK_PORTMASK_PORT_SET(vlan1.mbr, UTP_PORT2);
RTK_PORTMASK_PORT_SET(vlan1.mbr, UTP_PORT3);
RTK_PORTMASK_PORT_SET(vlan1.untag, EXT_PORT0);
RTK_PORTMASK_PORT_SET(vlan1.untag, UTP_PORT1);
RTK_PORTMASK_PORT_SET(vlan1.untag, UTP_PORT2);
RTK_PORTMASK_PORT_SET(vlan1.untag, UTP_PORT3);
if (want_at_p0) {
RTK_PORTMASK_PORT_SET(vlan1.mbr, UTP_PORT4);
RTK_PORTMASK_PORT_SET(vlan1.untag, UTP_PORT4);
} else {
RTK_PORTMASK_PORT_SET(vlan1.mbr, UTP_PORT0);
RTK_PORTMASK_PORT_SET(vlan1.untag, UTP_PORT0);
}
vlan1.ivl_en = 1;
rtk_vlan_set(1, &vlan1);
memset(&vlan2, 0x00, sizeof(rtk_vlan_cfg_t));
RTK_PORTMASK_PORT_SET(vlan2.mbr, EXT_PORT1);
RTK_PORTMASK_PORT_SET(vlan2.untag, EXT_PORT1);
if (want_at_p0) {
RTK_PORTMASK_PORT_SET(vlan2.mbr, UTP_PORT0);
RTK_PORTMASK_PORT_SET(vlan2.untag, UTP_PORT0);
} else {
RTK_PORTMASK_PORT_SET(vlan2.mbr, UTP_PORT4);
RTK_PORTMASK_PORT_SET(vlan2.untag, UTP_PORT4);
}
vlan2.ivl_en = 1;
rtk_vlan_set(2, &vlan2);
rtk_vlan_portPvid_set(EXT_PORT0, 1, 0);
rtk_vlan_portPvid_set(UTP_PORT1, 1, 0);
rtk_vlan_portPvid_set(UTP_PORT2, 1, 0);
rtk_vlan_portPvid_set(UTP_PORT3, 1, 0);
rtk_vlan_portPvid_set(EXT_PORT1, 2, 0);
if (want_at_p0) {
rtk_vlan_portPvid_set(UTP_PORT0, 2, 0);
rtk_vlan_portPvid_set(UTP_PORT4, 1, 0);
} else {
rtk_vlan_portPvid_set(UTP_PORT0, 1, 0);
rtk_vlan_portPvid_set(UTP_PORT4, 2, 0);
}
return 0;
}
static int rtl8367s_hw_init(void)
{
rtl8367s_hw_reset();
if(rtk_switch_init())
return -1;
mdelay(500);
if (rtk_vlan_reset())
return -1;
if (rtk_vlan_init())
return -1;
return 0;
}
static void set_rtl8367s_sgmii(void)
{
rtk_port_mac_ability_t mac_cfg;
rtk_mode_ext_t mode;
mode = MODE_EXT_HSGMII;
mac_cfg.forcemode = MAC_FORCE;
mac_cfg.speed = PORT_SPEED_2500M;
mac_cfg.duplex = PORT_FULL_DUPLEX;
mac_cfg.link = PORT_LINKUP;
mac_cfg.nway = DISABLED;
mac_cfg.txpause = ENABLED;
mac_cfg.rxpause = ENABLED;
rtk_port_macForceLinkExt_set(EXT_PORT0, mode, &mac_cfg);
rtk_port_sgmiiNway_set(EXT_PORT0, DISABLED);
rtk_port_phyEnableAll_set(ENABLED);
}
static void set_rtl8367s_rgmii(void)
{
rtk_port_mac_ability_t mac_cfg;
rtk_mode_ext_t mode;
mode = MODE_EXT_RGMII;
mac_cfg.forcemode = MAC_FORCE;
mac_cfg.speed = PORT_SPEED_1000M;
mac_cfg.duplex = PORT_FULL_DUPLEX;
mac_cfg.link = PORT_LINKUP;
mac_cfg.nway = DISABLED;
mac_cfg.txpause = ENABLED;
mac_cfg.rxpause = ENABLED;
rtk_port_macForceLinkExt_set(EXT_PORT1, mode, &mac_cfg);
rtk_port_rgmiiDelayExt_set(EXT_PORT1, 1, 3);
rtk_port_phyEnableAll_set(ENABLED);
}
void init_gsw(void)
{
rtl8367s_hw_init();
set_rtl8367s_sgmii();
set_rtl8367s_rgmii();
}
// bleow are platform driver
static const struct of_device_id rtk_gsw_match[] = {
{ .compatible = "mediatek,rtk-gsw" },
{},
};
MODULE_DEVICE_TABLE(of, rtk_gsw_match);
static int rtk_gsw_probe(struct platform_device *pdev)
{
struct device_node *np = pdev->dev.of_node;
struct device_node *mdio;
struct mii_bus *mdio_bus;
struct rtk_gsw *gsw;
const char *pm;
mdio = of_parse_phandle(np, "mediatek,mdio", 0);
if (!mdio)
return -EINVAL;
mdio_bus = of_mdio_find_bus(mdio);
if (!mdio_bus)
return -EPROBE_DEFER;
gsw = devm_kzalloc(&pdev->dev, sizeof(struct rtk_gsw), GFP_KERNEL);
if (!gsw)
return -ENOMEM;
gsw->dev = &pdev->dev;
gsw->bus = mdio_bus;
gsw->reset_pin = of_get_named_gpio(np, "mediatek,reset-pin", 0);
_gsw = gsw;
init_gsw();
//init default vlan or init swocnfig
if(!of_property_read_string(pdev->dev.of_node,
"mediatek,port_map", &pm)) {
if (!strcasecmp(pm, "wllll"))
rtl8367s_vlan_config(1);
else
rtl8367s_vlan_config(0);
} else {
#ifdef CONFIG_SWCONFIG
rtl8367s_swconfig_init(&init_gsw);
#else
rtl8367s_vlan_config(0);
#endif
}
gsw_debug_proc_init();
platform_set_drvdata(pdev, gsw);
return 0;
}
static int rtk_gsw_remove(struct platform_device *pdev)
{
platform_set_drvdata(pdev, NULL);
gsw_debug_proc_exit();
return 0;
}
static struct platform_driver gsw_driver = {
.probe = rtk_gsw_probe,
.remove = rtk_gsw_remove,
.driver = {
.name = "rtk-gsw",
.owner = THIS_MODULE,
.of_match_table = rtk_gsw_match,
},
};
module_platform_driver(gsw_driver);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Mark Lee <marklee0201@gmail.com>");
MODULE_DESCRIPTION("rtl8367c switch driver for MT7622");
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