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Blackfin Serial Driver: macro away the IER differences between processors

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Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
This commit is contained in:
Mike Frysinger
2008-05-07 11:41:26 +08:00
committed by Bryan Wu
parent 56f8771302
commit 89bf6dc51a
5 changed files with 12 additions and 54 deletions
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58
drivers/serial/bfin_5xx.c
View File

@@ -65,9 +65,6 @@ static void bfin_serial_stop_tx(struct uart_port *port)
{ {
struct bfin_serial_port *uart = (struct bfin_serial_port *)port; struct bfin_serial_port *uart = (struct bfin_serial_port *)port;
struct circ_buf *xmit = &uart->port.info->xmit; struct circ_buf *xmit = &uart->port.info->xmit;
#if !defined(CONFIG_BF54x) && !defined(CONFIG_SERIAL_BFIN_DMA)
unsigned short ier;
#endif
while (!(UART_GET_LSR(uart) & TEMT)) while (!(UART_GET_LSR(uart) & TEMT))
cpu_relax(); cpu_relax();
@@ -82,12 +79,8 @@ static void bfin_serial_stop_tx(struct uart_port *port)
#ifdef CONFIG_BF54x #ifdef CONFIG_BF54x
/* Clear TFI bit */ /* Clear TFI bit */
UART_PUT_LSR(uart, TFI); UART_PUT_LSR(uart, TFI);
UART_CLEAR_IER(uart, ETBEI);
#else
ier = UART_GET_IER(uart);
ier &= ~ETBEI;
UART_PUT_IER(uart, ier);
#endif #endif
UART_CLEAR_IER(uart, ETBEI);
#endif #endif
} }
@@ -102,14 +95,7 @@ static void bfin_serial_start_tx(struct uart_port *port)
if (uart->tx_done) if (uart->tx_done)
bfin_serial_dma_tx_chars(uart); bfin_serial_dma_tx_chars(uart);
#else #else
#ifdef CONFIG_BF54x
UART_SET_IER(uart, ETBEI); UART_SET_IER(uart, ETBEI);
#else
unsigned short ier;
ier = UART_GET_IER(uart);
ier |= ETBEI;
UART_PUT_IER(uart, ier);
#endif
bfin_serial_tx_chars(uart); bfin_serial_tx_chars(uart);
#endif #endif
} }
@@ -120,21 +106,10 @@ static void bfin_serial_start_tx(struct uart_port *port)
static void bfin_serial_stop_rx(struct uart_port *port) static void bfin_serial_stop_rx(struct uart_port *port)
{ {
struct bfin_serial_port *uart = (struct bfin_serial_port *)port; struct bfin_serial_port *uart = (struct bfin_serial_port *)port;
#ifdef CONFIG_KGDB_UART #ifdef CONFIG_KGDB_UART
if (uart->port.line != CONFIG_KGDB_UART_PORT) { if (uart->port.line != CONFIG_KGDB_UART_PORT)
#endif #endif
#ifdef CONFIG_BF54x
UART_CLEAR_IER(uart, ERBFI); UART_CLEAR_IER(uart, ERBFI);
#else
unsigned short ier;
ier = UART_GET_IER(uart);
ier &= ~ERBFI;
UART_PUT_IER(uart, ier);
#endif
#ifdef CONFIG_KGDB_UART
}
#endif
} }
/* /*
@@ -208,9 +183,6 @@ static void bfin_serial_rx_chars(struct bfin_serial_port *uart)
struct tty_struct *tty = uart->port.info->tty; struct tty_struct *tty = uart->port.info->tty;
unsigned int status, ch, flg; unsigned int status, ch, flg;
static struct timeval anomaly_start = { .tv_sec = 0 }; static struct timeval anomaly_start = { .tv_sec = 0 };
#ifdef CONFIG_KGDB_UART
struct pt_regs *regs = get_irq_regs();
#endif
status = UART_GET_LSR(uart); status = UART_GET_LSR(uart);
UART_CLEAR_LSR(uart); UART_CLEAR_LSR(uart);
@@ -220,6 +192,7 @@ static void bfin_serial_rx_chars(struct bfin_serial_port *uart)
#ifdef CONFIG_KGDB_UART #ifdef CONFIG_KGDB_UART
if (uart->port.line == CONFIG_KGDB_UART_PORT) { if (uart->port.line == CONFIG_KGDB_UART_PORT) {
struct pt_regs *regs = get_irq_regs();
if (uart->port.cons->index == CONFIG_KGDB_UART_PORT && ch == 0x1) { /* Ctrl + A */ if (uart->port.cons->index == CONFIG_KGDB_UART_PORT && ch == 0x1) { /* Ctrl + A */
kgdb_breakkey_pressed(regs); kgdb_breakkey_pressed(regs);
return; return;
@@ -391,7 +364,6 @@ static void bfin_serial_do_work(struct work_struct *work)
static void bfin_serial_dma_tx_chars(struct bfin_serial_port *uart) static void bfin_serial_dma_tx_chars(struct bfin_serial_port *uart)
{ {
struct circ_buf *xmit = &uart->port.info->xmit; struct circ_buf *xmit = &uart->port.info->xmit;
unsigned short ier;
uart->tx_done = 0; uart->tx_done = 0;
@@ -429,13 +401,7 @@ static void bfin_serial_dma_tx_chars(struct bfin_serial_port *uart)
set_dma_x_modify(uart->tx_dma_channel, 1); set_dma_x_modify(uart->tx_dma_channel, 1);
enable_dma(uart->tx_dma_channel); enable_dma(uart->tx_dma_channel);
#ifdef CONFIG_BF54x
UART_SET_IER(uart, ETBEI); UART_SET_IER(uart, ETBEI);
#else
ier = UART_GET_IER(uart);
ier |= ETBEI;
UART_PUT_IER(uart, ier);
#endif
} }
static void bfin_serial_dma_rx_chars(struct bfin_serial_port *uart) static void bfin_serial_dma_rx_chars(struct bfin_serial_port *uart)
@@ -513,19 +479,12 @@ static irqreturn_t bfin_serial_dma_tx_int(int irq, void *dev_id)
{ {
struct bfin_serial_port *uart = dev_id; struct bfin_serial_port *uart = dev_id;
struct circ_buf *xmit = &uart->port.info->xmit; struct circ_buf *xmit = &uart->port.info->xmit;
unsigned short ier;
spin_lock(&uart->port.lock); spin_lock(&uart->port.lock);
if (!(get_dma_curr_irqstat(uart->tx_dma_channel)&DMA_RUN)) { if (!(get_dma_curr_irqstat(uart->tx_dma_channel)&DMA_RUN)) {
disable_dma(uart->tx_dma_channel); disable_dma(uart->tx_dma_channel);
clear_dma_irqstat(uart->tx_dma_channel); clear_dma_irqstat(uart->tx_dma_channel);
#ifdef CONFIG_BF54x
UART_CLEAR_IER(uart, ETBEI); UART_CLEAR_IER(uart, ETBEI);
#else
ier = UART_GET_IER(uart);
ier &= ~ETBEI;
UART_PUT_IER(uart, ier);
#endif
xmit->tail = (xmit->tail + uart->tx_count) & (UART_XMIT_SIZE - 1); xmit->tail = (xmit->tail + uart->tx_count) & (UART_XMIT_SIZE - 1);
uart->port.icount.tx += uart->tx_count; uart->port.icount.tx += uart->tx_count;
@@ -701,7 +660,6 @@ static int bfin_serial_startup(struct uart_port *port)
# endif # endif
} }
if (request_irq if (request_irq
(uart->port.irq+1, bfin_serial_tx_int, IRQF_DISABLED, (uart->port.irq+1, bfin_serial_tx_int, IRQF_DISABLED,
"BFIN_UART_TX", uart)) { "BFIN_UART_TX", uart)) {
@@ -710,11 +668,7 @@ static int bfin_serial_startup(struct uart_port *port)
return -EBUSY; return -EBUSY;
} }
#endif #endif
#ifdef CONFIG_BF54x
UART_SET_IER(uart, ERBFI); UART_SET_IER(uart, ERBFI);
#else
UART_PUT_IER(uart, UART_GET_IER(uart) | ERBFI);
#endif
return 0; return 0;
} }
@@ -1290,11 +1244,7 @@ static int __init bfin_serial_init(void)
request_irq(uart->port.irq, bfin_serial_rx_int, request_irq(uart->port.irq, bfin_serial_rx_int,
IRQF_DISABLED, "BFIN_UART_RX", uart); IRQF_DISABLED, "BFIN_UART_RX", uart);
pr_info("Request irq for kgdb uart port\n"); pr_info("Request irq for kgdb uart port\n");
#ifdef CONFIG_BF54x
UART_SET_IER(uart, ERBFI); UART_SET_IER(uart, ERBFI);
#else
UART_PUT_IER(uart, UART_GET_IER(uart) | ERBFI);
#endif
SSYNC(); SSYNC();
t.c_cflag = CS8|B57600; t.c_cflag = CS8|B57600;
t.c_iflag = 0; t.c_iflag = 0;

2
include/asm-blackfin/mach-bf527/bfin_serial_5xx.h
View File

@@ -44,6 +44,8 @@
#define UART_PUT_CHAR(uart, v) bfin_write16(((uart)->port.membase + OFFSET_THR), v) #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_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_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_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_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_PUT_GCTL(uart, v) bfin_write16(((uart)->port.membase + OFFSET_GCTL), v)

2
include/asm-blackfin/mach-bf533/bfin_serial_5xx.h
View File

@@ -44,6 +44,8 @@
#define UART_PUT_CHAR(uart,v) bfin_write16(((uart)->port.membase + OFFSET_THR),v) #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_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_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_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_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_PUT_GCTL(uart,v) bfin_write16(((uart)->port.membase + OFFSET_GCTL),v)

2
include/asm-blackfin/mach-bf537/bfin_serial_5xx.h
View File

@@ -44,6 +44,8 @@
#define UART_PUT_CHAR(uart,v) bfin_write16(((uart)->port.membase + OFFSET_THR),v) #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_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_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_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_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_PUT_GCTL(uart,v) bfin_write16(((uart)->port.membase + OFFSET_GCTL),v)

2
include/asm-blackfin/mach-bf561/bfin_serial_5xx.h
View File

@@ -44,6 +44,8 @@
#define UART_PUT_CHAR(uart,v) bfin_write16(((uart)->port.membase + OFFSET_THR),v) #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_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_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_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_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_PUT_GCTL(uart,v) bfin_write16(((uart)->port.membase + OFFSET_GCTL),v)