USB: support RK3188 usb bypass uart function

[firefly-linux-kernel-4.4.55.git] / arch / arm / mach-rk30 / common.c

diff --git a/arch/arm/mach-rk30/common.c b/arch/arm/mach-rk30/common.c
index f5148b95487acb462100922bed723f30b9d143c5..3ca82ba813b0f05c6107b863474e5750870c6cfd 100755 (executable)
--- a/arch/arm/mach-rk30/common.c
+++ b/arch/arm/mach-rk30/common.c
@@ -151,6 +151,30 @@ void __init rk30_init_irq(void)
 void __init rk30_map_io(void)
 {
        rk30_map_common_io();
+#ifdef DEBUG_UART_BASE
+#ifdef CONFIG_RK_USB_UART
+       if(!(readl_relaxed(RK30_GRF_BASE + GRF_SOC_STATUS0) & (1 << 13))){//detect id
+               writel_relaxed((0x0300 << 16), RK30_GRF_BASE + GRF_UOC0_CON0);
+       }else{
+               if(!(readl_relaxed(RK30_GRF_BASE + GRF_SOC_STATUS0) & (1 << 10))){//detect vbus
+                       writel_relaxed(((0x01 << 2) | ((0x01 << 2) << 16)), RK30_GRF_BASE + GRF_UOC0_CON2); //software control usb phy enable 
+                       writel_relaxed((0x2A | (0x3F << 16)), RK30_GRF_BASE + GRF_UOC0_CON3);  //usb phy enter suspend
+                       writel_relaxed((0x0300 | (0x0300 << 16)), RK30_GRF_BASE + GRF_UOC0_CON0);
+               }else{
+                       writel_relaxed((0x0300 << 16), RK30_GRF_BASE + GRF_UOC0_CON0);
+               }
+       }
+#else
+       writel_relaxed((0x0300 << 16), RK30_GRF_BASE + GRF_UOC0_CON0);
+#endif
+       writel_relaxed(0x07, DEBUG_UART_BASE + 0x88);
+       writel_relaxed(0x07, DEBUG_UART_BASE + 0x88);
+       writel_relaxed(0x00, DEBUG_UART_BASE + 0x04);                                                                               
+       writel_relaxed(0x83, DEBUG_UART_BASE + 0x0c);
+       writel_relaxed(0x0d, DEBUG_UART_BASE + 0x00);
+       writel_relaxed(0x00, DEBUG_UART_BASE + 0x04);
+       writel_relaxed(0x03, DEBUG_UART_BASE + 0x0c);
+#endif
        rk29_setup_early_printk();
        rk30_cpu_axi_init();
        rk30_io_drive_strength_init();