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authorMike Frysinger <vapier@gentoo.org>2009-09-28 03:16:01 +0000
committerMike Frysinger <vapier@gentoo.org>2011-01-10 07:18:02 -0500
commitb1524e29e318e79b2d04bcbd651a7af8dff32bb3 (patch)
tree7e138995fa0f8727b61fdada567cbda3f95e1670 /arch/blackfin/mach-bf548
parent709465d6ea0466454ef547e7d1065db2b23033a9 (diff)
downloadlinux-b1524e29e318e79b2d04bcbd651a7af8dff32bb3.tar.bz2
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>
Diffstat (limited to 'arch/blackfin/mach-bf548')
-rw-r--r--arch/blackfin/mach-bf548/include/mach/bfin_serial.h16
-rw-r--r--arch/blackfin/mach-bf548/include/mach/bfin_serial_5xx.h60
-rw-r--r--arch/blackfin/mach-bf548/include/mach/blackfin.h15
-rw-r--r--arch/blackfin/mach-bf548/include/mach/defBF54x_base.h71
4 files changed, 18 insertions, 144 deletions
diff --git a/arch/blackfin/mach-bf548/include/mach/bfin_serial.h b/arch/blackfin/mach-bf548/include/mach/bfin_serial.h
new file mode 100644
index 000000000000..a77109f99720
--- /dev/null
+++ b/arch/blackfin/mach-bf548/include/mach/bfin_serial.h
@@ -0,0 +1,16 @@
+/*
+ * 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 4
+
+#define BFIN_UART_BF54X_STYLE
+
+#endif
diff --git a/arch/blackfin/mach-bf548/include/mach/bfin_serial_5xx.h b/arch/blackfin/mach-bf548/include/mach/bfin_serial_5xx.h
index dd44aa75fe72..0d94edaaaa2e 100644
--- a/arch/blackfin/mach-bf548/include/mach/bfin_serial_5xx.h
+++ b/arch/blackfin/mach-bf548/include/mach/bfin_serial_5xx.h
@@ -4,72 +4,14 @@
* 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_DLH(uart) bfin_read16(((uart)->port.membase + OFFSET_DLH))
-#define UART_GET_IER(uart) bfin_read16(((uart)->port.membase + OFFSET_IER_SET))
-#define UART_GET_LCR(uart) bfin_read16(((uart)->port.membase + OFFSET_LCR))
-#define UART_GET_LSR(uart) bfin_read16(((uart)->port.membase + OFFSET_LSR))
-#define UART_GET_GCTL(uart) bfin_read16(((uart)->port.membase + OFFSET_GCTL))
-#define UART_GET_MSR(uart) bfin_read16(((uart)->port.membase + OFFSET_MSR))
-#define UART_GET_MCR(uart) bfin_read16(((uart)->port.membase + OFFSET_MCR))
-
-#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_SET_IER(uart,v) bfin_write16(((uart)->port.membase + OFFSET_IER_SET),v)
-#define UART_CLEAR_IER(uart,v) bfin_write16(((uart)->port.membase + OFFSET_IER_CLEAR),v)
-#define UART_PUT_DLH(uart,v) bfin_write16(((uart)->port.membase + OFFSET_DLH),v)
-#define UART_PUT_LSR(uart,v) bfin_write16(((uart)->port.membase + OFFSET_LSR),v)
-#define UART_PUT_LCR(uart,v) bfin_write16(((uart)->port.membase + OFFSET_LCR),v)
-#define UART_CLEAR_LSR(uart) bfin_write16(((uart)->port.membase + OFFSET_LSR), -1)
-#define UART_PUT_GCTL(uart,v) bfin_write16(((uart)->port.membase + OFFSET_GCTL),v)
-#define UART_PUT_MCR(uart,v) bfin_write16(((uart)->port.membase + OFFSET_MCR),v)
-#define UART_CLEAR_SCTS(uart) bfin_write16(((uart)->port.membase + OFFSET_MSR),SCTS)
-
-#define UART_SET_DLAB(uart) /* MMRs not muxed on BF54x */
-#define UART_CLEAR_DLAB(uart) /* MMRs not muxed on BF54x */
-
-#define UART_GET_CTS(x) (UART_GET_MSR(x) & CTS)
-#define UART_DISABLE_RTS(x) UART_PUT_MCR(x, UART_GET_MCR(x) & ~(ARTS|MRTS))
-#define UART_ENABLE_RTS(x) UART_PUT_MCR(x, UART_GET_MCR(x) | MRTS | ARTS)
-#define UART_ENABLE_INTS(x, v) UART_SET_IER(x, v)
-#define UART_DISABLE_INTS(x) UART_CLEAR_IER(x, 0xF)
-
#if defined(CONFIG_BFIN_UART0_CTSRTS) || defined(CONFIG_BFIN_UART1_CTSRTS) || \
defined(CONFIG_BFIN_UART2_CTSRTS) || defined(CONFIG_BFIN_UART3_CTSRTS)
# define CONFIG_SERIAL_BFIN_HARD_CTSRTS
#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;
-#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_HARD_CTSRTS
- int scts;
- int cts_pin;
- int rts_pin;
-#endif
-};
-
struct bfin_serial_res {
unsigned long uart_base_addr;
int uart_irq;
@@ -148,3 +90,5 @@ struct bfin_serial_res bfin_serial_resource[] = {
};
#define DRIVER_NAME "bfin-uart"
+
+#include <asm/bfin_serial.h>
diff --git a/arch/blackfin/mach-bf548/include/mach/blackfin.h b/arch/blackfin/mach-bf548/include/mach/blackfin.h
index 5684030ccc21..bbdcde48d050 100644
--- a/arch/blackfin/mach-bf548/include/mach/blackfin.h
+++ b/arch/blackfin/mach-bf548/include/mach/blackfin.h
@@ -49,19 +49,4 @@
#endif
-#define BFIN_UART_NR_PORTS 4
-
-#define OFFSET_DLL 0x00 /* Divisor Latch (Low-Byte) */
-#define OFFSET_DLH 0x04 /* Divisor Latch (High-Byte) */
-#define OFFSET_GCTL 0x08 /* Global Control 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_IER_SET 0x20 /* Set Interrupt Enable Register */
-#define OFFSET_IER_CLEAR 0x24 /* Clear Interrupt Enable Register */
-#define OFFSET_THR 0x28 /* Transmit Holding register */
-#define OFFSET_RBR 0x2C /* Receive Buffer register */
-
#endif
diff --git a/arch/blackfin/mach-bf548/include/mach/defBF54x_base.h b/arch/blackfin/mach-bf548/include/mach/defBF54x_base.h
index 78f91103f175..3d751f134b7e 100644
--- a/arch/blackfin/mach-bf548/include/mach/defBF54x_base.h
+++ b/arch/blackfin/mach-bf548/include/mach/defBF54x_base.h
@@ -2172,68 +2172,6 @@
#define RCVDATA16 0xffff /* Receive FIFO 16-Bit Data */
-/* Bit masks for UARTx_LCR */
-
-#if 0
-/* conflicts with legacy one in last section */
-#define WLS 0x3 /* Word Length Select */
-#endif
-#define STB 0x4 /* Stop Bits */
-#define PEN 0x8 /* Parity Enable */
-#define EPS 0x10 /* Even Parity Select */
-#define STP 0x20 /* Sticky Parity */
-#define SB 0x40 /* Set Break */
-
-/* Bit masks for UARTx_MCR */
-
-#define XOFF 0x1 /* Transmitter Off */
-#define MRTS 0x2 /* Manual Request To Send */
-#define RFIT 0x4 /* Receive FIFO IRQ Threshold */
-#define RFRT 0x8 /* Receive FIFO RTS Threshold */
-#define LOOP_ENA 0x10 /* Loopback Mode Enable */
-#define FCPOL 0x20 /* Flow Control Pin Polarity */
-#define ARTS 0x40 /* Automatic Request To Send */
-#define ACTS 0x80 /* Automatic Clear To Send */
-
-/* Bit masks for UARTx_LSR */
-
-#define DR 0x1 /* Data Ready */
-#define OE 0x2 /* Overrun Error */
-#define PE 0x4 /* Parity Error */
-#define FE 0x8 /* Framing Error */
-#define BI 0x10 /* Break Interrupt */
-#define THRE 0x20 /* THR Empty */
-#define TEMT 0x40 /* Transmitter Empty */
-#define TFI 0x80 /* Transmission Finished Indicator */
-
-/* Bit masks for UARTx_MSR */
-
-#define SCTS 0x1 /* Sticky CTS */
-#define CTS 0x10 /* Clear To Send */
-#define RFCS 0x20 /* Receive FIFO Count Status */
-
-/* Bit masks for UARTx_IER_SET & UARTx_IER_CLEAR */
-
-#define ERBFI 0x1 /* Enable Receive Buffer Full Interrupt */
-#define ETBEI 0x2 /* Enable Transmit Buffer Empty Interrupt */
-#define ELSI 0x4 /* Enable Receive Status Interrupt */
-#define EDSSI 0x8 /* Enable Modem Status Interrupt */
-#define EDTPTI 0x10 /* Enable DMA Transmit PIRQ Interrupt */
-#define ETFI 0x20 /* Enable Transmission Finished Interrupt */
-#define ERFCI 0x40 /* Enable Receive FIFO Count Interrupt */
-
-/* Bit masks for UARTx_GCTL */
-
-#define UCEN 0x1 /* UART Enable */
-#define IREN 0x2 /* IrDA Mode Enable */
-#define TPOLC 0x4 /* IrDA TX Polarity Change */
-#define RPOLC 0x8 /* IrDA RX Polarity Change */
-#define FPE 0x10 /* Force Parity Error */
-#define FFE 0x20 /* Force Framing Error */
-#define EDBO 0x40 /* Enable Divide-by-One */
-#define EGLSI 0x80 /* Enable Global LS Interrupt */
-
-
/* ******************************************* */
/* MULTI BIT MACRO ENUMERATIONS */
/* ******************************************* */
@@ -2251,13 +2189,6 @@
#define WDTH_CAP 0x0002
#define EXT_CLK 0x0003
-/* UARTx_LCR bit field options */
-
-#define WLS_5 0x0000 /* 5 data bits */
-#define WLS_6 0x0001 /* 6 data bits */
-#define WLS_7 0x0002 /* 7 data bits */
-#define WLS_8 0x0003 /* 8 data bits */
-
/* PINTx Register Bit Definitions */
#define PIQ0 0x00000001
@@ -2706,8 +2637,6 @@ PORTJ_FER registers
/* for legacy compatibility */
-#define WLS(x) (((x)-5) & 0x03) /* Word Length Select */
-#define W1LMAX_MAX W1LMAX_MIN
#define EBIU_AMCBCTL0 EBIU_AMBCTL0
#define EBIU_AMCBCTL1 EBIU_AMBCTL1
#define PINT0_IRQ PINT0_REQUEST