diff options
Diffstat (limited to 'arch/blackfin/mach-bf527')
4 files changed, 16 insertions, 131 deletions
diff --git a/arch/blackfin/mach-bf527/include/mach/bfin_serial.h b/arch/blackfin/mach-bf527/include/mach/bfin_serial.h new file mode 100644 index 0000000..00c603f --- /dev/null +++ b/arch/blackfin/mach-bf527/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-bf527/include/mach/bfin_serial_5xx.h b/arch/blackfin/mach-bf527/include/mach/bfin_serial_5xx.h index c1d55b8..960e089 100644 --- a/arch/blackfin/mach-bf527/include/mach/bfin_serial_5xx.h +++ b/arch/blackfin/mach-bf527/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-bf527/include/mach/blackfin.h b/arch/blackfin/mach-bf527/include/mach/blackfin.h index f714c5d..1ede5e1 100644 --- a/arch/blackfin/mach-bf527/include/mach/blackfin.h +++ b/arch/blackfin/mach-bf527/include/mach/blackfin.h @@ -31,19 +31,4 @@ #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-bf527/include/mach/defBF52x_base.h b/arch/blackfin/mach-bf527/include/mach/defBF52x_base.h index 0947503..d2594f3 100644 --- a/arch/blackfin/mach-bf527/include/mach/defBF52x_base.h +++ b/arch/blackfin/mach-bf527/include/mach/defBF52x_base.h @@ -704,51 +704,6 @@ #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 */ |