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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-bf537/include/mach/bfin_serial_5xx.h
parent709465d6ea0466454ef547e7d1065db2b23033a9 (diff)
downloadlinux-2.6.38-lt-ux500-b1524e29e318e79b2d04bcbd651a7af8dff32bb3.tar.gz
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-bf537/include/mach/bfin_serial_5xx.h')
-rw-r--r--arch/blackfin/mach-bf537/include/mach/bfin_serial_5xx.h72
1 files changed, 2 insertions, 70 deletions
diff --git a/arch/blackfin/mach-bf537/include/mach/bfin_serial_5xx.h b/arch/blackfin/mach-bf537/include/mach/bfin_serial_5xx.h
index 635c91c526a..3e955dba895 100644
--- a/arch/blackfin/mach-bf537/include/mach/bfin_serial_5xx.h
+++ b/arch/blackfin/mach-bf537/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
@@ -54,49 +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
- 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;
@@ -145,3 +75,5 @@ struct bfin_serial_res bfin_serial_resource[] = {
};
#define DRIVER_NAME "bfin-uart"
+
+#include <asm/bfin_serial.h>