1 files changed, 86 insertions, 0 deletions
diff --git a/plat/layerscape/common/include/ls_16550.h b/plat/layerscape/common/include/ls_16550.h
new file mode 100644
index 00000000..503a01df
--- /dev/null
+++ b/plat/layerscape/common/include/ls_16550.h
@@ -0,0 +1,86 @@
+/*
+ * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef __LS_16550_H__
+#define __LS_16550_H__
+
+#include <console.h>
+
+/* UART16550 Registers */
+#define UARTTX			0x0
+#define UARTRX			0x0
+#define UARTDLL			0x0
+#define UARTIER			0x1
+#define UARTDLLM		0x1
+#define UARTFCR			0x2
+#define UARTLCR			0x3
+#define UARTLSR			0x5
+#define UARTMCR                 0x4
+
+/* 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 */
+#define UARTFCR_64FIFO          (1 << 5)
+
+/* 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_RXFIFOEMT	(1 << 9)	/* Rx Fifo Empty */
+#define UARTLSR_TXFIFOFULL	(1 << 8)	/* Tx Fifo Full */
+#define UARTLSR_RXFIFOERR	(1 << 7)	/* Rx Fifo Error */
+#define UARTLSR_TEMT		(1 << 6)	/* Tx Shift Register Empty */
+#define UARTLSR_THRE		(1 << 5)	/* Tx Holding Register Empty */
+#define UARTLSR_BRK		(1 << 4)	/* Break Condition Detected */
+#define UARTLSR_FERR		(1 << 3)	/* Framing Error */
+#define UARTLSR_PERR		(1 << 3)	/* Parity Error */
+#define UARTLSR_OVRF		(1 << 2)	/* Rx Overrun Error */
+#define UARTLSR_RDR		(1 << 2)	/* Rx Data Ready */
+
+#define CONSOLE_T_16550_BASE	CONSOLE_T_DRVDATA
+
+#ifndef __ASSEMBLY__
+
+#include <types.h>
+
+typedef struct {
+	console_t console;
+	uintptr_t base;
+} console_ls_16550_t;
+
+/*
+ * Initialize a new 16550 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_ls_16550_register(uintptr_t baseaddr, uint32_t clock, uint32_t baud,
+			   console_ls_16550_t *console);
+
+#endif /*__ASSEMBLY__*/
+
+#endif	/* __LS_16550_H__ */