summaryrefslogtreecommitdiffstats
path: root/include/drivers/marvell/uart/a3700_console.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/drivers/marvell/uart/a3700_console.h')
-rw-r--r--include/drivers/marvell/uart/a3700_console.h74
1 files changed, 74 insertions, 0 deletions
diff --git a/include/drivers/marvell/uart/a3700_console.h b/include/drivers/marvell/uart/a3700_console.h
new file mode 100644
index 0000000..ce673a1
--- /dev/null
+++ b/include/drivers/marvell/uart/a3700_console.h
@@ -0,0 +1,74 @@
+/*
+ * Copyright (C) 2016 Marvell International Ltd.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ * https://spdx.org/licenses
+ */
+
+#ifndef A3700_CONSOLE_H
+#define A3700_CONSOLE_H
+
+#include <drivers/console.h>
+#include <platform_def.h>
+
+/* MVEBU UART Registers */
+#define UART_RX_REG 0x00
+#define UART_TX_REG 0x04
+#define UART_CTRL_REG 0x08
+#define UART_STATUS_REG 0x0c
+#define UART_BAUD_REG 0x10
+#define UART_POSSR_REG 0x14
+
+/* FIFO Control Register bits */
+#define UARTFCR_FIFOMD_16450 (0 << 6)
+#define UARTFCR_FIFOMD_16550 (1 << 6)
+#define UARTFCR_RXTRIG_1 (0 << 6)
+#define UARTFCR_RXTRIG_4 (1 << 6)
+#define UARTFCR_RXTRIG_8 (2 << 6)
+#define UARTFCR_RXTRIG_16 (3 << 6)
+#define UARTFCR_TXTRIG_1 (0 << 4)
+#define UARTFCR_TXTRIG_4 (1 << 4)
+#define UARTFCR_TXTRIG_8 (2 << 4)
+#define UARTFCR_TXTRIG_16 (3 << 4)
+#define UARTFCR_DMAEN (1 << 3) /* Enable DMA mode */
+#define UARTFCR_TXCLR (1 << 2) /* Clear contents of Tx FIFO */
+#define UARTFCR_RXCLR (1 << 1) /* Clear contents of Rx FIFO */
+#define UARTFCR_FIFOEN (1 << 0) /* Enable the Tx/Rx FIFO */
+
+/* Line Control Register bits */
+#define UARTLCR_DLAB (1 << 7) /* Divisor Latch Access */
+#define UARTLCR_SETB (1 << 6) /* Set BREAK Condition */
+#define UARTLCR_SETP (1 << 5) /* Set Parity to LCR[4] */
+#define UARTLCR_EVEN (1 << 4) /* Even Parity Format */
+#define UARTLCR_PAR (1 << 3) /* Parity */
+#define UARTLCR_STOP (1 << 2) /* Stop Bit */
+#define UARTLCR_WORDSZ_5 0 /* Word Length of 5 */
+#define UARTLCR_WORDSZ_6 1 /* Word Length of 6 */
+#define UARTLCR_WORDSZ_7 2 /* Word Length of 7 */
+#define UARTLCR_WORDSZ_8 3 /* Word Length of 8 */
+
+/* Line Status Register bits */
+#define UARTLSR_TXFIFOFULL (1 << 11) /* Tx Fifo Full */
+#define UARTLSR_TXEMPTY (1 << 6) /* Tx Empty */
+#define UARTLSR_RXRDY (1 << 4) /* Rx Ready */
+
+/* UART Control Register bits */
+#define UART_CTRL_RXFIFO_RESET (1 << 14)
+#define UART_CTRL_TXFIFO_RESET (1 << 15)
+
+#ifndef __ASSEMBLER__
+
+#include <stdint.h>
+
+/*
+ * Initialize a new a3700 console instance and register it with the console
+ * framework. The |console| pointer must point to storage that will be valid
+ * for the lifetime of the console, such as a global or static local variable.
+ * Its contents will be reinitialized from scratch.
+ */
+int console_a3700_register(uintptr_t baseaddr, uint32_t clock, uint32_t baud,
+ console_t *console);
+
+#endif /*__ASSEMBLER__*/
+
+#endif /* A3700_CONSOLE_H */