Blackfin: bfin_serial.h: unify heavily duplicated serial code

Each Blackfin port has been duplicating UART structures and defines when
there really is no need for it.  So start a new bfin_serial.h header to
unify all these pieces and give ourselves a fresh start.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

4 files changed, 16 insertions, 131 deletions

diff --git a/arch/blackfin/mach-bf518/include/mach/bfin_serial.h b/arch/blackfin/mach-bf518/include/mach/bfin_serial.h
new file mode 100644
index 0000000..00c603f
--- /dev/null
+++ b/arch/blackfin/mach-bf518/include/mach/bfin_serial.h
@@ -0,0 +1,14 @@
+/*
+ * mach/bfin_serial.h - Blackfin UART/Serial definitions
+ *
+ * Copyright 2006-2010 Analog Devices Inc.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#ifndef __BFIN_MACH_SERIAL_H__
+#define __BFIN_MACH_SERIAL_H__
+
+#define BFIN_UART_NR_PORTS	2
+
+#endif
diff --git a/arch/blackfin/mach-bf518/include/mach/bfin_serial_5xx.h b/arch/blackfin/mach-bf518/include/mach/bfin_serial_5xx.h
index 970d310..f6d924a 100644
--- a/arch/blackfin/mach-bf518/include/mach/bfin_serial_5xx.h
+++ b/arch/blackfin/mach-bf518/include/mach/bfin_serial_5xx.h
@@ -4,36 +4,9 @@
  * Licensed under the GPL-2 or later
  */
 
-#include <linux/serial.h>
 #include <asm/dma.h>
 #include <asm/portmux.h>
 
-#define UART_GET_CHAR(uart)     bfin_read16(((uart)->port.membase + OFFSET_RBR))
-#define UART_GET_DLL(uart)	bfin_read16(((uart)->port.membase + OFFSET_DLL))
-#define UART_GET_IER(uart)      bfin_read16(((uart)->port.membase + OFFSET_IER))
-#define UART_GET_DLH(uart)	bfin_read16(((uart)->port.membase + OFFSET_DLH))
-#define UART_GET_IIR(uart)      bfin_read16(((uart)->port.membase + OFFSET_IIR))
-#define UART_GET_LCR(uart)      bfin_read16(((uart)->port.membase + OFFSET_LCR))
-#define UART_GET_GCTL(uart)     bfin_read16(((uart)->port.membase + OFFSET_GCTL))
-
-#define UART_PUT_CHAR(uart, v)   bfin_write16(((uart)->port.membase + OFFSET_THR), v)
-#define UART_PUT_DLL(uart, v)    bfin_write16(((uart)->port.membase + OFFSET_DLL), v)
-#define UART_PUT_IER(uart, v)    bfin_write16(((uart)->port.membase + OFFSET_IER), v)
-#define UART_SET_IER(uart, v)    UART_PUT_IER(uart, UART_GET_IER(uart) | (v))
-#define UART_CLEAR_IER(uart, v)  UART_PUT_IER(uart, UART_GET_IER(uart) & ~(v))
-#define UART_PUT_DLH(uart, v)    bfin_write16(((uart)->port.membase + OFFSET_DLH), v)
-#define UART_PUT_LCR(uart, v)    bfin_write16(((uart)->port.membase + OFFSET_LCR), v)
-#define UART_PUT_GCTL(uart, v)   bfin_write16(((uart)->port.membase + OFFSET_GCTL), v)
-
-#define UART_SET_DLAB(uart)     do { UART_PUT_LCR(uart, UART_GET_LCR(uart) | DLAB); SSYNC(); } while (0)
-#define UART_CLEAR_DLAB(uart)   do { UART_PUT_LCR(uart, UART_GET_LCR(uart) & ~DLAB); SSYNC(); } while (0)
-
-#define UART_GET_CTS(x) gpio_get_value(x->cts_pin)
-#define UART_DISABLE_RTS(x) gpio_set_value(x->rts_pin, 1)
-#define UART_ENABLE_RTS(x) gpio_set_value(x->rts_pin, 0)
-#define UART_ENABLE_INTS(x, v) UART_PUT_IER(x, v)
-#define UART_DISABLE_INTS(x) UART_PUT_IER(x, 0)
-
 #if defined(CONFIG_BFIN_UART0_CTSRTS) || defined(CONFIG_BFIN_UART1_CTSRTS)
 # define CONFIG_SERIAL_BFIN_CTSRTS
 
@@ -54,50 +27,6 @@
 # endif
 #endif
 
-#define BFIN_UART_TX_FIFO_SIZE	2
-
-/*
- * The pin configuration is different from schematic
- */
-struct bfin_serial_port {
-	struct uart_port port;
-	unsigned int old_status;
-	int status_irq;
-	unsigned int lsr;
-#ifdef CONFIG_SERIAL_BFIN_DMA
-	int tx_done;
-	int tx_count;
-	struct circ_buf rx_dma_buf;
-	struct timer_list rx_dma_timer;
-	int rx_dma_nrows;
-	unsigned int tx_dma_channel;
-	unsigned int rx_dma_channel;
-	struct work_struct tx_dma_workqueue;
-#endif
-#ifdef CONFIG_SERIAL_BFIN_CTSRTS
-	struct timer_list cts_timer;
-	int cts_pin;
-	int rts_pin;
-#endif
-};
-
-/* The hardware clears the LSR bits upon read, so we need to cache
- * some of the more fun bits in software so they don't get lost
- * when checking the LSR in other code paths (TX).
- */
-static inline unsigned int UART_GET_LSR(struct bfin_serial_port *uart)
-{
-	unsigned int lsr = bfin_read16(uart->port.membase + OFFSET_LSR);
-	uart->lsr |= (lsr & (BI|FE|PE|OE));
-	return lsr | uart->lsr;
-}
-
-static inline void UART_CLEAR_LSR(struct bfin_serial_port *uart)
-{
-	uart->lsr = 0;
-	bfin_write16(uart->port.membase + OFFSET_LSR, -1);
-}
-
 struct bfin_serial_res {
 	unsigned long uart_base_addr;
 	int uart_irq;
@@ -146,3 +75,5 @@ struct bfin_serial_res bfin_serial_resource[] = {
 };
 
 #define DRIVER_NAME "bfin-uart"
+
+#include <asm/bfin_serial.h>
diff --git a/arch/blackfin/mach-bf518/include/mach/blackfin.h b/arch/blackfin/mach-bf518/include/mach/blackfin.h
index 9053462..3ddc978 100644
--- a/arch/blackfin/mach-bf518/include/mach/blackfin.h
+++ b/arch/blackfin/mach-bf518/include/mach/blackfin.h
@@ -43,19 +43,4 @@
 #endif
 #endif
 
-#define BFIN_UART_NR_PORTS	2
-
-#define OFFSET_THR              0x00	/* Transmit Holding register            */
-#define OFFSET_RBR              0x00	/* Receive Buffer register              */
-#define OFFSET_DLL              0x00	/* Divisor Latch (Low-Byte)             */
-#define OFFSET_IER              0x04	/* Interrupt Enable Register            */
-#define OFFSET_DLH              0x04	/* Divisor Latch (High-Byte)            */
-#define OFFSET_IIR              0x08	/* Interrupt Identification Register    */
-#define OFFSET_LCR              0x0C	/* Line Control Register                */
-#define OFFSET_MCR              0x10	/* Modem Control Register               */
-#define OFFSET_LSR              0x14	/* Line Status Register                 */
-#define OFFSET_MSR              0x18	/* Modem Status Register                */
-#define OFFSET_SCR              0x1C	/* SCR Scratch Register                 */
-#define OFFSET_GCTL             0x24	/* Global Control Register              */
-
 #endif
diff --git a/arch/blackfin/mach-bf518/include/mach/defBF51x_base.h b/arch/blackfin/mach-bf518/include/mach/defBF51x_base.h
index 5f84913..e816c63 100644
--- a/arch/blackfin/mach-bf518/include/mach/defBF51x_base.h
+++ b/arch/blackfin/mach-bf518/include/mach/defBF51x_base.h
@@ -703,51 +703,6 @@
 #define IWR_ENABLE(x)	(1 << ((x)&0x1F))					/* Wakeup Enable Peripheral #x		*/
 #define IWR_DISABLE(x)	(0xFFFFFFFF ^ (1 << ((x)&0x1F))) 	/* Wakeup Disable Peripheral #x		*/
 
-
-/* ************** UART CONTROLLER MASKS *************************/
-/* UARTx_LCR Masks												*/
-#define WLS(x)		(((x)-5) & 0x03)	/* Word Length Select */
-#define STB			0x04				/* Stop Bits			*/
-#define PEN			0x08				/* Parity Enable		*/
-#define EPS			0x10				/* Even Parity Select	*/
-#define STP			0x20				/* Stick Parity			*/
-#define SB			0x40				/* Set Break			*/
-#define DLAB		0x80				/* Divisor Latch Access	*/
-
-/* UARTx_MCR Mask										*/
-#define LOOP_ENA	0x10	/* Loopback Mode Enable */
-#define LOOP_ENA_P	0x04
-
-/* UARTx_LSR Masks										*/
-#define DR			0x01	/* Data Ready				*/
-#define OE			0x02	/* Overrun Error			*/
-#define PE			0x04	/* Parity Error				*/
-#define FE			0x08	/* Framing Error			*/
-#define BI			0x10	/* Break Interrupt			*/
-#define THRE		0x20	/* THR Empty				*/
-#define TEMT		0x40	/* TSR and UART_THR Empty	*/
-
-/* UARTx_IER Masks															*/
-#define ERBFI		0x01		/* Enable Receive Buffer Full Interrupt		*/
-#define ETBEI		0x02		/* Enable Transmit Buffer Empty Interrupt	*/
-#define ELSI		0x04		/* Enable RX Status Interrupt				*/
-
-/* UARTx_IIR Masks														*/
-#define NINT		0x01		/* Pending Interrupt					*/
-#define IIR_TX_READY    0x02		/* UART_THR empty                               */
-#define IIR_RX_READY    0x04		/* Receive data ready                           */
-#define IIR_LINE_CHANGE 0x06		/* Receive line status    			*/
-#define IIR_STATUS	0x06		/* Highest Priority Pending Interrupt	*/
-
-/* UARTx_GCTL Masks													*/
-#define UCEN		0x01		/* Enable UARTx Clocks				*/
-#define IREN		0x02		/* Enable IrDA Mode					*/
-#define TPOLC		0x04		/* IrDA TX Polarity Change			*/
-#define RPOLC		0x08		/* IrDA RX Polarity Change			*/
-#define FPE			0x10		/* Force Parity Error On Transmit	*/
-#define FFE			0x20		/* Force Framing Error On Transmit	*/
-
-
 /*  ****************  GENERAL PURPOSE TIMER MASKS  **********************/
 /* TIMER_ENABLE Masks													*/
 #define TIMEN0			0x0001		/* Enable Timer 0					*/