initial commit

include/lcpu_mmio.h

@@ -0,0 +1,36 @@
+/* LCPU MMIO device access */
+
+#ifndef LCPU_MMIO_H
+#define LCPU_MMIO_H
+
+typedef struct { /* Header registers for the Wire device */
+	uint32_t nrInputs;
+	uint32_t nrOutputs;
+} LCPU_WireDevice_Header;
+
+#define LCPU_WIRE_BASE 0x11310000
+#define LCPU_WIRE_IO_BASE WIRE_BASE + sizeof(LCPU_WireDevice_Header)
+#define LCPU_WIRE_OUTPUT_BASE WIRE_IO_BASE + (WIRE_HEADER->nrInputs * sizeof(uint32_t)) 
+
+#define LCPU_WIRE_HEADER ((volatile LCPU_WireDevice_Header*)WIRE_BASE)
+
+/* retrieve wire input [i] */
+#define LCPU_WIRE_INPUT(i) *(volatile const uint32_t*)(WIRE_IO_BASE + (i * sizeof(uint32_t)))
+
+/* set wire output [i] */
+#define LCPU_WIRE_OUTPUT(i) *(volatile uint32_t*)(WIRE_OUTPUT_BASE + (i * sizeof(uint32_t)))
+
+/* syscon device */
+#define LCPU_SYSCON *(volatile uint32_t*)0x11100000
+
+/* UART device */
+#define LCPU_UART_BASE 0x10000000
+#define LCPU_UART_DATA *(volatile uint32_t*)UART_BASE
+#define LCPU_UART_STATUS UART_DATA
+
+
+/* syscon helpers */
+#define LCPU_REBOOT() LCPU_SYSCON = 0x7777;
+#define LCPU_SHUTDOWN() LCPU_SYSCON = 0x5555;
+
+#endif