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, 163 deletions

diff --git a/arch/blackfin/mach-bf538/include/mach/bfin_serial.h b/arch/blackfin/mach-bf538/include/mach/bfin_serial.h
new file mode 100644
index 0000000..c66e276
--- /dev/null
+++ b/arch/blackfin/mach-bf538/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	3
+
+#endif
diff --git a/arch/blackfin/mach-bf538/include/mach/bfin_serial_5xx.h b/arch/blackfin/mach-bf538/include/mach/bfin_serial_5xx.h
index 5c14814..beb502e 100644
--- a/arch/blackfin/mach-bf538/include/mach/bfin_serial_5xx.h
+++ b/arch/blackfin/mach-bf538/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;
@@ -160,3 +89,5 @@ struct bfin_serial_res bfin_serial_resource[] = {
 };
 
 #define DRIVER_NAME "bfin-uart"
+
+#include <asm/bfin_serial.h>
diff --git a/arch/blackfin/mach-bf538/include/mach/blackfin.h b/arch/blackfin/mach-bf538/include/mach/blackfin.h
index 08b5eab..b82cb02 100644
--- a/arch/blackfin/mach-bf538/include/mach/blackfin.h
+++ b/arch/blackfin/mach-bf538/include/mach/blackfin.h
@@ -22,19 +22,4 @@
 #endif
 #endif
 
-#define BFIN_UART_NR_PORTS	3
-
-#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-bf538/include/mach/defBF539.h b/arch/blackfin/mach-bf538/include/mach/defBF539.h
index 7a8ac5f..0ef05c9 100644
--- a/arch/blackfin/mach-bf538/include/mach/defBF539.h
+++ b/arch/blackfin/mach-bf538/include/mach/defBF539.h
@@ -1534,83 +1534,6 @@
 #define	IWR_DISABLE(x)	(0xFFFFFFFF ^ (1 << ((x)&0x1F)))	/* Wakeup Disable Peripheral #x */
 #endif /* _MISRA_RULES */
 
-
-/* ***************************** UART CONTROLLER MASKS ********************** */
-/* UARTx_LCR Register */
-#ifdef _MISRA_RULES
-#define	WLS(x)		(((x)-5u) & 0x03u)	/* Word	Length Select */
-#else
-#define	WLS(x)		(((x)-5) & 0x03)	/* Word	Length Select */
-#endif /* _MISRA_RULES */
-#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 */
-
-#define	DLAB_P		0x07
-#define	SB_P		0x06
-#define	STP_P		0x05
-#define	EPS_P		0x04
-#define	PEN_P		0x03
-#define	STB_P		0x02
-#define	WLS_P1		0x01
-#define	WLS_P0		0x00
-
-/* UARTx_MCR Register */
-#define	LOOP_ENA	0x10	/* Loopback Mode Enable */
-#define	LOOP_ENA_P	0x04
-/* Deprecated UARTx_MCR	Mask			 */
-
-/* UARTx_LSR Register */
-#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 */
-
-#define	TEMP_P		0x06
-#define	THRE_P		0x05
-#define	BI_P		0x04
-#define	FE_P		0x03
-#define	PE_P		0x02
-#define	OE_P		0x01
-#define	DR_P		0x00
-
-/* UARTx_IER Register */
-#define	ERBFI		0x01		/* Enable Receive Buffer Full Interrupt */
-#define	ETBEI		0x02		/* Enable Transmit Buffer Empty	Interrupt */
-#define	ELSI		0x04		/* Enable RX Status Interrupt */
-
-#define	ELSI_P		0x02
-#define	ETBEI_P		0x01
-#define	ERBFI_P		0x00
-
-/* UARTx_IIR Register */
-#define	NINT		0x01
-#define	STATUS_P1	0x02
-#define	STATUS_P0	0x01
-#define	NINT_P		0x00
-
-/* UARTx_GCTL Register */
-#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 */
-
-#define	FFE_P		0x05
-#define	FPE_P		0x04
-#define	RPOLC_P		0x03
-#define	TPOLC_P		0x02
-#define	IREN_P		0x01
-#define	UCEN_P		0x00
-
-
 /*  *********  PARALLEL	PERIPHERAL INTERFACE (PPI) MASKS ****************   */
 /*  PPI_CONTROL	Masks	      */
 #define	PORT_EN		0x0001	/* PPI Port Enable  */