void usb_phy_recover(void)
{
//usb phy initial sequence
USB_PHY_Write_Register8(0x00, 0xFF);
USB_PHY_Write_Register8(0x04, 0x61);
USB_PHY_Write_Register8(0x00, 0x68);
USB_PHY_Write_Register8(0x00, 0x6a);
USB_PHY_Write_Register8(0x6e, 0x00);
USB_PHY_Write_Register8(0x0c, 0x1b);
USB_PHY_Write_Register8(0x44, 0x08);
USB_PHY_Write_Register8(0x55, 0x11);
USB_PHY_Write_Register8(0x68, 0x1a);
USBPHY_CLR8(0x6a, 0xff);
printk("[MUSB]addr: 0xFF, value: %x\n", USB_PHY_Read_Register8(0xFF));
printk("[MUSB]addr: 0x61, value: %x\n", USB_PHY_Read_Register8(0x61));
printk("[MUSB]addr: 0x68, value: %x\n", USB_PHY_Read_Register8(0x68));
printk("[MUSB]addr: 0x6a, value: %x\n", USB_PHY_Read_Register8(0x6a));
printk("[MUSB]addr: 0x00, value: %x\n", USB_PHY_Read_Register8(0x00));
printk("[MUSB]addr: 0x1b, value: %x\n", USB_PHY_Read_Register8(0x1b));
printk("[MUSB]addr: 0x08, value: %x\n", USB_PHY_Read_Register8(0x08));
printk("[MUSB]addr: 0x11, value: %x\n", USB_PHY_Read_Register8(0x11));
printk("[MUSB]addr: 0x1a, value: %x\n", USB_PHY_Read_Register8(0x1a));
printk("[MUSB]usb_phy_recover \n");
}
void usb_phy_switch_to_usb(void)
{
int var;
/* Set RG_UART_EN to 0 */
var = USB_PHY_Read_Register8(0x6E);
DBG(0, "[MUSB]addr: 0x6E, value: %x\n", var);
USB_PHY_Write_Register8(var & ~0x01, 0x6E);
DBG(0, "[MUSB]addr: 0x6E, value after: %x\n", USB_PHY_Read_Register8(0x6E));
/* Set RG_USB20_DM_100K_EN to 0 */
var = USB_PHY_Read_Register8(0x22);
DBG(0, "[MUSB]addr: 0x22, value: %x\n", var);
USB_PHY_Write_Register8(var & ~0x02, 0x22);
DBG(0, "[MUSB]addr: 0x22, value after: %x\n", USB_PHY_Read_Register8(0x22));
var = DRV_Reg8(UART1_BASE + 0x90);
DBG(0, "[MUSB]addr: 0x11002090 (UART1), value: %x\n", var);
DRV_WriteReg8(UART1_BASE + 0x90, var & ~0x01);
DBG(0, "[MUSB]addr: 0x11002090 (UART1), value after: %x\n\n", DRV_Reg8(UART1_BASE + 0x90));
#if 0
/* SW connect */
var = USB_PHY_Read_Register8(0x68);
DBG(0, "[MUSB]addr: 0x68, value: %x\n", var);
USB_PHY_Write_Register8(0x0, 0x68);
DBG(0, "[MUSB]addr: 0x68, value after: %x\n", USB_PHY_Read_Register8(0x68));
var = USB_PHY_Read_Register8(0x6A);
DBG(0, "[MUSB]addr: 0x6A, value: %x\n", var);
USB_PHY_Write_Register8(0x0, 0x6A);
DBG(0, "[MUSB]addr: 0x6A, value after: %x\n", USB_PHY_Read_Register8(0x6A));
/* SW connect */
#endif
/* SW connect */
mt_usb_connect();
}
void usb_phy_switch_to_uart(void)
{
int var;
#if 0
/* SW disconnect */
var = USB_PHY_Read_Register8(0x68);
DBG(0, "[MUSB]addr: 0x68, value: %x\n", var);
USB_PHY_Write_Register8(0x15, 0x68);
DBG(0, "[MUSB]addr: 0x68, value after: %x\n", USB_PHY_Read_Register8(0x68));
var = USB_PHY_Read_Register8(0x6A);
DBG(0, "[MUSB]addr: 0x6A, value: %x\n", var);
USB_PHY_Write_Register8(0x0, 0x6A);
DBG(0, "[MUSB]addr: 0x6A, value after: %x\n", USB_PHY_Read_Register8(0x6A));
/* SW disconnect */
#endif
/* Set ru_uart_mode to 2'b01 */
var = USB_PHY_Read_Register8(0x6B);
DBG(0, "[MUSB]addr: 0x6B, value: %x\n", var);
USB_PHY_Write_Register8(var | 0x7C, 0x6B);
DBG(0, "[MUSB]addr: 0x6B, value after: %x\n", USB_PHY_Read_Register8(0x6B));
/* Set RG_UART_EN to 1 */
var = USB_PHY_Read_Register8(0x6E);
DBG(0, "[MUSB]addr: 0x6E, value: %x\n", var);
USB_PHY_Write_Register8(var | 0x07, 0x6E);
DBG(0, "[MUSB]addr: 0x6E, value after: %x\n", USB_PHY_Read_Register8(0x6E));
/* Set RG_USB20_DM_100K_EN to 1 */
var = USB_PHY_Read_Register8(0x22);
DBG(0, "[MUSB]addr: 0x22, value: %x\n", var);
USB_PHY_Write_Register8(var | 0x02, 0x22);
DBG(0, "[MUSB]addr: 0x22, value after: %x\n", USB_PHY_Read_Register8(0x22));
var = DRV_Reg8(UART1_BASE + 0x90);
DBG(0, "[MUSB]addr: 0x11002090 (UART1), value: %x\n", var);
DRV_WriteReg8(UART1_BASE + 0x90, var | 0x01);
DBG(0, "[MUSB]addr: 0x11002090 (UART1), value after: %x\n\n", DRV_Reg8(UART1_BASE + 0x90));
/* SW disconnect */
mt_usb_disconnect();
}
bool usb_phy_check_in_uart_mode(void)
{
UINT8 usb_port_mode;
usb_enable_clock(true);
udelay(50);
usb_port_mode = USB_PHY_Read_Register8(0x6B);
usb_enable_clock(false);
if ((usb_port_mode == 0x5C) || (usb_port_mode == 0x5E))
return true;
else
return false;
}
static int usb_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id)
{
printk("usb_i2c_probe, start\n");
usb_i2c_client = client;
//disable usb mac suspend
DRV_WriteReg8(0xF126086a, 0x00);
//usb phy initial sequence
USB_PHY_Write_Register8(0x00, 0xFF);
USB_PHY_Write_Register8(0x04, 0x61);
USB_PHY_Write_Register8(0x00, 0x68);
USB_PHY_Write_Register8(0x00, 0x6a);
USB_PHY_Write_Register8(0x6e, 0x00);
USB_PHY_Write_Register8(0x0c, 0x1b);
USB_PHY_Write_Register8(0x44, 0x08);
USB_PHY_Write_Register8(0x55, 0x11);
USB_PHY_Write_Register8(0x68, 0x1a);
printk("addr: 0xFF, value: %x\n", USB_PHY_Read_Register8(0xFF));
printk("addr: 0x61, value: %x\n", USB_PHY_Read_Register8(0x61));
printk("addr: 0x68, value: %x\n", USB_PHY_Read_Register8(0x68));
printk("addr: 0x6a, value: %x\n", USB_PHY_Read_Register8(0x6a));
printk("addr: 0x00, value: %x\n", USB_PHY_Read_Register8(0x00));
printk("addr: 0x1b, value: %x\n", USB_PHY_Read_Register8(0x1b));
printk("addr: 0x08, value: %x\n", USB_PHY_Read_Register8(0x08));
printk("addr: 0x11, value: %x\n", USB_PHY_Read_Register8(0x11));
printk("addr: 0x1a, value: %x\n", USB_PHY_Read_Register8(0x1a));
printk("usb_i2c_probe, end\n");
return 0;
}
