[PATCH 3/7] at91/serial: switch to "struct resource"
Jean-Christophe PLAGNIOL-VILLARD
plagnioj at jcrosoft.com
Sat Jul 16 06:45:28 EDT 2011
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj at jcrosoft.com>
Cc: Nicolas Ferre <nicolas.ferre at atmel.com>
Cc: Patrice Vilchez <patrice.vilchez at atmel.com>
---
drivers/serial/atmel.c | 27 ++++++++++++++-------------
1 files changed, 14 insertions(+), 13 deletions(-)
diff --git a/drivers/serial/atmel.c b/drivers/serial/atmel.c
index 1098952..d8713b3 100644
--- a/drivers/serial/atmel.c
+++ b/drivers/serial/atmel.c
@@ -313,6 +313,7 @@
* We wrap our port structure around the generic console_device.
*/
struct atmel_uart_port {
+ void __iomem *base;
struct console_device uart; /* uart */
struct clk *clk; /* uart clock */
u32 uartclk;
@@ -326,31 +327,30 @@ to_atmel_uart_port(struct console_device *uart)
static void atmel_serial_putc(struct console_device *cdev, char c)
{
- struct device_d *dev = cdev->dev;
+ struct atmel_uart_port *uart = to_atmel_uart_port(cdev);
- while (!(readl(dev->map_base + USART3_CSR) & USART3_BIT(TXRDY)));
+ while (!(readl(uart->base + USART3_CSR) & USART3_BIT(TXRDY)));
- writel(c, dev->map_base + USART3_THR);
+ writel(c, uart->base + USART3_THR);
}
static int atmel_serial_tstc(struct console_device *cdev)
{
- struct device_d *dev = cdev->dev;
+ struct atmel_uart_port *uart = to_atmel_uart_port(cdev);
- return (readl(dev->map_base + USART3_CSR) & USART3_BIT(RXRDY)) != 0;
+ return (readl(uart->base + USART3_CSR) & USART3_BIT(RXRDY)) != 0;
}
static int atmel_serial_getc(struct console_device *cdev)
{
- struct device_d *dev = cdev->dev;
+ struct atmel_uart_port *uart = to_atmel_uart_port(cdev);
- while (!(readl(dev->map_base + USART3_CSR) & USART3_BIT(RXRDY))) ;
- return readl(dev->map_base + USART3_RHR);
+ while (!(readl(uart->base + USART3_CSR) & USART3_BIT(RXRDY))) ;
+ return readl(uart->base + USART3_RHR);
}
static int atmel_serial_setbaudrate(struct console_device *cdev, int baudrate)
{
- struct device_d *dev = cdev->dev;
struct atmel_uart_port *uart = to_atmel_uart_port(cdev);
unsigned long divisor;
@@ -360,7 +360,7 @@ static int atmel_serial_setbaudrate(struct console_device *cdev, int baudrate)
* 16 * CD
*/
divisor = (uart->uartclk / 16 + baudrate / 2) / baudrate;
- writel(USART3_BF(CD, divisor), dev->map_base + USART3_BRGR);
+ writel(USART3_BF(CD, divisor), uart->base + USART3_BRGR);
return 0;
}
@@ -375,20 +375,21 @@ static int atmel_serial_init_port(struct console_device *cdev)
struct device_d *dev = cdev->dev;
struct atmel_uart_port *uart = to_atmel_uart_port(cdev);
+ uart->base = (void __iomem *)dev->resource[0].start;
uart->clk = clk_get(dev, "usart");
clk_enable(uart->clk);
uart->uartclk = clk_get_rate(uart->clk);
- writel(USART3_BIT(RSTRX) | USART3_BIT(RSTTX), dev->map_base + USART3_CR);
+ writel(USART3_BIT(RSTRX) | USART3_BIT(RSTTX), uart->base + USART3_CR);
atmel_serial_setbaudrate(cdev, 115200);
- writel(USART3_BIT(RXEN) | USART3_BIT(TXEN), dev->map_base + USART3_CR);
+ writel(USART3_BIT(RXEN) | USART3_BIT(TXEN), uart->base + USART3_CR);
writel((USART3_BF(USART_MODE, USART3_USART_MODE_NORMAL)
| USART3_BF(USCLKS, USART3_USCLKS_MCK)
| USART3_BF(CHRL, USART3_CHRL_8)
| USART3_BF(PAR, USART3_PAR_NONE)
- | USART3_BF(NBSTOP, USART3_NBSTOP_1)), dev->map_base + USART3_MR);
+ | USART3_BF(NBSTOP, USART3_NBSTOP_1)), uart->base + USART3_MR);
return 0;
}
--
1.7.5.4
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