LED Blinker running on TMS570LS31x Hercules Development Kit (HDK) (TMS570LS3137ZWT)

[arc.git] / arch / arm / arm_cr4 / drivers / Port.c

diff --git a/arch/arm/arm_cr4/drivers/Port.c b/arch/arm/arm_cr4/drivers/Port.c
index dfe86b2db0144b187fb6da8e701c68bb62014a53..fb764f08186c81bcc556c576f17a122a3a78daf4 100644 (file)
--- a/arch/arm/arm_cr4/drivers/Port.c
+++ b/arch/arm/arm_cr4/drivers/Port.c
@@ -46,17 +46,17 @@ typedef volatile struct
 \r
 #define PORT_NOT_CONFIGURED 0x00000000\r
 \r
-#define PORT_0_BASE ((Port_RegisterType *)0xFFF7BC30)\r
-#define PORT_1_BASE ((Port_RegisterType *)0xFFF7BC50)\r
-#define PORT_2_BASE ((Port_RegisterType *)PORT_NOT_CONFIGURED)\r
+#define PORT_0_BASE ((Port_RegisterType *)0xFFF7BC30)                  // GIO Emulation B register\r
+#define PORT_1_BASE ((Port_RegisterType *)0xFFF7BC50)                  // GIO Pull Select Register A ??\r
+#define PORT_2_BASE ((Port_RegisterType *)0xFFF7B848)                  // N2HET1\r
 #define PORT_3_BASE ((Port_RegisterType *)PORT_NOT_CONFIGURED)\r
 #define PORT_4_BASE ((Port_RegisterType *)PORT_NOT_CONFIGURED)\r
 #define PORT_5_BASE ((Port_RegisterType *)PORT_NOT_CONFIGURED)\r
 #define PORT_6_BASE ((Port_RegisterType *)PORT_NOT_CONFIGURED)\r
 #define PORT_7_BASE ((Port_RegisterType *)PORT_NOT_CONFIGURED)\r
-#define PORT_8_BASE ((Port_RegisterType *)0xFFF7DDE0)\r
-#define PORT_9_BASE ((Port_RegisterType *)0xFFF7DFE0)\r
-#define PORT_10_BASE ((Port_RegisterType *)0xFFF7E1E0)\r
+#define PORT_8_BASE ((Port_RegisterType *)0xFFF7DDE0)                  // DCAN1 TX IO Control Register\r
+#define PORT_9_BASE ((Port_RegisterType *)0xFFF7DFE0)                  // DCAN2 TX IO Control Register\r
+#define PORT_10_BASE ((Port_RegisterType *)0xFFF7E1E0)                 // DCAN3 TX IO Control Register\r
 #define PORT_NUMBER_OF_PORTS 11\r
 \r
 static Port_RegisterType * const Port_Base[] =\r
@@ -169,6 +169,10 @@ void Port_Init(const Port_ConfigType *configType) {
        // Bring GIO register out of reset.\r
        gioREG->GCR0 = 1;\r
 \r
+       /* Hack to connect N2HET1[27] (function 2) to pin A9 */\r
+       *(volatile uint32*)0xFFFFEB10 &= ~0xFF000000;\r
+       *(volatile uint32*)0xFFFFEB10 |= ~0x04000000;\r
+\r
        for (uint16 i = 0; i < PORT_NUMBER_OF_PINS; i++) {\r
                Port_RefreshPin(i);\r
        }\r