From: XAQ IP Librarian <abq_iplib@xaqiptest40.(none)>
Byte accesses for I/O devices in Xilinx IP is going to be less
desired in the future such that the driver is being changed to
use 32 bit accesses.
Signed-off-by: John Linn <john.linn@xxxxxxxxxx>
---
drivers/serial/uartlite.c | 36 ++++++++++++++++++------------------
1 files changed, 18 insertions(+), 18 deletions(-)
diff --git a/drivers/serial/uartlite.c b/drivers/serial/uartlite.c
index 377f271..9f83949 100644
--- a/drivers/serial/uartlite.c
+++ b/drivers/serial/uartlite.c
@@ -86,7 +86,7 @@ static int ulite_receive(struct uart_port *port, int stat)
/* stats */
if (stat & ULITE_STATUS_RXVALID) {
port->icount.rx++;
- ch = readb(port->membase + ULITE_RX);
+ ch = (u8)in_be32(port->membase + ULITE_RX);
if (stat & ULITE_STATUS_PARITY)
port->icount.parity++;
@@ -131,7 +131,7 @@ static int ulite_transmit(struct uart_port *port, int stat)
return 0;
if (port->x_char) {
- writeb(port->x_char, port->membase + ULITE_TX);
+ out_be32(port->membase + ULITE_TX, (u32)port->x_char);
port->x_char = 0;
port->icount.tx++;
return 1;
@@ -140,7 +140,7 @@ static int ulite_transmit(struct uart_port *port, int stat)
if (uart_circ_empty(xmit) || uart_tx_stopped(port))
return 0;
- writeb(xmit->buf[xmit->tail], port->membase + ULITE_TX);
+ out_be32(port->membase + ULITE_TX, (u32)xmit->buf[xmit->tail]);
xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE-1);
port->icount.tx++;
@@ -157,7 +157,7 @@ static irqreturn_t ulite_isr(int irq, void *dev_id)
int busy, n = 0;
do {
- int stat = readb(port->membase + ULITE_STATUS);
+ int stat = in_be32(port->membase + ULITE_STATUS);
busy = ulite_receive(port, stat);
busy |= ulite_transmit(port, stat);
n++;
@@ -178,7 +178,7 @@ static unsigned int ulite_tx_empty(struct uart_port *port)
unsigned int ret;
spin_lock_irqsave(&port->lock, flags);
- ret = readb(port->membase + ULITE_STATUS);
+ ret = in_be32(port->membase + ULITE_STATUS);
spin_unlock_irqrestore(&port->lock, flags);
return ret & ULITE_STATUS_TXEMPTY ? TIOCSER_TEMT : 0;
@@ -201,7 +201,7 @@ static void ulite_stop_tx(struct uart_port *port)
static void ulite_start_tx(struct uart_port *port)
{
- ulite_transmit(port, readb(port->membase + ULITE_STATUS));
+ ulite_transmit(port, (u8)in_be32(port->membase + ULITE_STATUS));
}
static void ulite_stop_rx(struct uart_port *port)
@@ -230,17 +230,17 @@ static int ulite_startup(struct uart_port *port)
if (ret)
return ret;
- writeb(ULITE_CONTROL_RST_RX | ULITE_CONTROL_RST_TX,
- port->membase + ULITE_CONTROL);
- writeb(ULITE_CONTROL_IE, port->membase + ULITE_CONTROL);
+ out_be32(port->membase + ULITE_CONTROL,
+ ULITE_CONTROL_RST_RX | ULITE_CONTROL_RST_TX);
+ out_be32(port->membase + ULITE_CONTROL, ULITE_CONTROL_IE);
return 0;
}
static void ulite_shutdown(struct uart_port *port)
{
- writeb(0, port->membase + ULITE_CONTROL);
- readb(port->membase + ULITE_CONTROL); /* dummy */
+ out_be32(port->membase + ULITE_CONTROL, 0);
+ in_be32(port->membase + ULITE_CONTROL); /* dummy */
free_irq(port->irq, port);
}
@@ -348,11 +348,11 @@ static struct uart_ops ulite_ops = {
static void ulite_console_wait_tx(struct uart_port *port)
{
int i;
- u8 val;
+ u32 val;
/* Spin waiting for TX fifo to have space available */
for (i = 0; i < 100000; i++) {
- val = readb(port->membase + ULITE_STATUS);
+ val = in_be32(port->membase + ULITE_STATUS);
if ((val & ULITE_STATUS_TXFULL) == 0)
break;
cpu_relax();
@@ -362,7 +362,7 @@ static void ulite_console_wait_tx(struct uart_port *port)
static void ulite_console_putchar(struct uart_port *port, int ch)
{
ulite_console_wait_tx(port);
- writeb(ch, port->membase + ULITE_TX);
+ out_be32(port->membase + ULITE_TX, (u32)ch);
}
static void ulite_console_write(struct console *co, const char *s,
@@ -379,8 +379,8 @@ static void ulite_console_write(struct console *co, const char *s,
spin_lock_irqsave(&port->lock, flags);
/* save and disable interrupt */
- ier = readb(port->membase + ULITE_STATUS) & ULITE_STATUS_IE;
- writeb(0, port->membase + ULITE_CONTROL);
+ ier = in_be32(port->membase + ULITE_STATUS) & ULITE_STATUS_IE;
+ out_be32(port->membase + ULITE_CONTROL, 0);
uart_console_write(port, s, count, ulite_console_putchar);
@@ -388,7 +388,7 @@ static void ulite_console_write(struct console *co, const char *s,
/* restore interrupt state */
if (ier)
- writeb(ULITE_CONTROL_IE, port->membase + ULITE_CONTROL);
+ out_be32(port->membase + ULITE_CONTROL, ULITE_CONTROL_IE);
if (locked)
spin_unlock_irqrestore(&port->lock, flags);
@@ -601,7 +601,7 @@ ulite_of_probe(struct of_device *op, const struct of_device_id *match)
id = of_get_property(op->node, "port-number", NULL);
- return ulite_assign(&op->dev, id ? *id : -1, res.start+3, irq);
+ return ulite_assign(&op->dev, id ? *id : -1, res.start, irq);
}
static int __devexit ulite_of_remove(struct of_device *op)
--
1.6.2.1
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