[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/bsp/lk/platform/microblaze/uartlite.c b/src/bsp/lk/platform/microblaze/uartlite.c
new file mode 100644
index 0000000..e63bb60
--- /dev/null
+++ b/src/bsp/lk/platform/microblaze/uartlite.c
@@ -0,0 +1,113 @@
+/*
+ * Copyright (c) 2015 Travis Geiselbrecht
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files
+ * (the "Software"), to deal in the Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge,
+ * publish, distribute, sublicense, and/or sell copies of the Software,
+ * and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+#include <reg.h>
+#include <trace.h>
+#include <lib/cbuf.h>
+#include <lk/init.h>
+#include <kernel/thread.h>
+#include <platform.h>
+#include <platform/interrupts.h>
+#include <sys/types.h>
+#include <target/microblaze-config.h>
+
+#define LOCAL_TRACE 0
+
+#define R_RX 0
+#define R_TX 1
+#define R_STATUS 2
+#define R_CTRL 3
+#define R_MAX 4
+
+#define STATUS_RXVALID 0x01
+#define STATUS_RXFULL 0x02
+#define STATUS_TXEMPTY 0x04
+#define STATUS_TXFULL 0x08
+#define STATUS_IE 0x10
+#define STATUS_OVERRUN 0x20
+#define STATUS_FRAME 0x40
+#define STATUS_PARITY 0x80
+
+#define CONTROL_RST_TX 0x01
+#define CONTROL_RST_RX 0x02
+#define CONTROL_IE 0x10
+
+#define UART_REG(reg) (*REG32(UARTLITE_BASEADDR + (reg) * 4))
+
+#define RXBUF_SIZE 128
+static cbuf_t uart_rx_buf;
+
+void uartlite_putc(char c)
+{
+ while (UART_REG(R_STATUS) & STATUS_TXFULL)
+ ;
+ UART_REG(R_TX) = c;
+}
+
+int uartlite_getc(bool wait)
+{
+#if 0
+ char c;
+ if (cbuf_read_char(&uart_rx_buf, &c, wait) == 1)
+ return c;
+#else
+ do {
+ if (UART_REG(R_STATUS) & STATUS_RXVALID) {
+ char c = UART_REG(R_RX);
+ return c;
+ }
+ } while (wait);
+#endif
+
+ return -1;
+}
+
+enum handler_return uartlite_irq(void *arg)
+{
+ bool resched = false;
+
+ /* while receive fifo not empty, read a char */
+ while (UART_REG(R_STATUS) & STATUS_RXVALID) {
+ char c = UART_REG(R_RX);
+ cbuf_write_char(&uart_rx_buf, c, false);
+
+ resched = true;
+ }
+
+ return resched ? INT_RESCHEDULE : INT_NO_RESCHEDULE;
+}
+
+static void uartlite_init(uint level)
+{
+ TRACE;
+
+ //UART_REG(R_CTRL) = CONTROL_RST_TX | CONTROL_RST_RX;
+// UART_REG(R_CTRL) |= CONTROL_IE;
+
+ cbuf_initialize(&uart_rx_buf, RXBUF_SIZE);
+
+// register_int_handler(UARTLITE_IRQ, uartlite_irq, NULL);
+// unmask_interrupt(UARTLITE_IRQ);
+}
+
+LK_INIT_HOOK(uartlite, uartlite_init, LK_INIT_LEVEL_PLATFORM);
+