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-rw-r--r--arch/arm/mach-at91rm9200/devices.c1
-rw-r--r--arch/avr32/mach-at32ap/at32ap7000.c33
-rw-r--r--drivers/serial/atmel_serial.c5
-rw-r--r--include/asm-arm/arch-at91rm9200/board.h1
-rw-r--r--include/asm-avr32/arch-at32ap/board.h5
5 files changed, 37 insertions, 8 deletions
diff --git a/arch/arm/mach-at91rm9200/devices.c b/arch/arm/mach-at91rm9200/devices.c
index 5a3919f..0598243 100644
--- a/arch/arm/mach-at91rm9200/devices.c
+++ b/arch/arm/mach-at91rm9200/devices.c
@@ -561,6 +561,7 @@ static struct resource dbgu_resources[] = {
static struct atmel_uart_data dbgu_data = {
.use_dma_tx = 0,
.use_dma_rx = 0, /* DBGU not capable of receive DMA */
+ .regs = (void __iomem *)(AT91_VA_BASE_SYS + AT91_DBGU),
};
static struct platform_device at91rm9200_dbgu_device = {
diff --git a/arch/avr32/mach-at32ap/at32ap7000.c b/arch/avr32/mach-at32ap/at32ap7000.c
index 05d1296..3dd3058 100644
--- a/arch/avr32/mach-at32ap/at32ap7000.c
+++ b/arch/avr32/mach-at32ap/at32ap7000.c
@@ -523,32 +523,48 @@ void __init at32_add_system_devices(void)
* USART
* -------------------------------------------------------------------- */
+static struct atmel_uart_data atmel_usart0_data = {
+ .use_dma_tx = 1,
+ .use_dma_rx = 1,
+};
static struct resource atmel_usart0_resource[] = {
PBMEM(0xffe00c00),
IRQ(7),
};
-DEFINE_DEV(atmel_usart, 0);
+DEFINE_DEV_DATA(atmel_usart, 0);
DEV_CLK(usart, atmel_usart0, pba, 4);
+static struct atmel_uart_data atmel_usart1_data = {
+ .use_dma_tx = 1,
+ .use_dma_rx = 1,
+};
static struct resource atmel_usart1_resource[] = {
PBMEM(0xffe01000),
IRQ(7),
};
-DEFINE_DEV(atmel_usart, 1);
+DEFINE_DEV_DATA(atmel_usart, 1);
DEV_CLK(usart, atmel_usart1, pba, 4);
+static struct atmel_uart_data atmel_usart2_data = {
+ .use_dma_tx = 1,
+ .use_dma_rx = 1,
+};
static struct resource atmel_usart2_resource[] = {
PBMEM(0xffe01400),
IRQ(8),
};
-DEFINE_DEV(atmel_usart, 2);
+DEFINE_DEV_DATA(atmel_usart, 2);
DEV_CLK(usart, atmel_usart2, pba, 5);
+static struct atmel_uart_data atmel_usart3_data = {
+ .use_dma_tx = 1,
+ .use_dma_rx = 1,
+};
static struct resource atmel_usart3_resource[] = {
PBMEM(0xffe01800),
IRQ(9),
};
-DEFINE_DEV(atmel_usart, 3);
+DEFINE_DEV_DATA(atmel_usart, 3);
DEV_CLK(usart, atmel_usart3, pba, 6);
static inline void configure_usart0_pins(void)
@@ -597,8 +613,13 @@ static struct platform_device *setup_usart(unsigned int id)
configure_usart3_pins();
break;
default:
- pdev = NULL;
- break;
+ return NULL;
+ }
+
+ if (PXSEG(pdev->resource[0].start) == P4SEG) {
+ /* Addresses in the P4 segment are permanently mapped 1:1 */
+ struct atmel_uart_data *data = pdev->dev.platform_data;
+ data->regs = (void __iomem *)pdev->resource[0].start;
}
return pdev;
diff --git a/drivers/serial/atmel_serial.c b/drivers/serial/atmel_serial.c
index 2f9d99b..34212df 100644
--- a/drivers/serial/atmel_serial.c
+++ b/drivers/serial/atmel_serial.c
@@ -694,8 +694,9 @@ static void __devinit atmel_init_port(struct atmel_uart_port *atmel_port, struct
port->mapbase = pdev->resource[0].start;
port->irq = pdev->resource[1].start;
- if (port->mapbase == AT91_VA_BASE_SYS + AT91_DBGU) /* Part of system perpherals - already mapped */
- port->membase = (void __iomem *) port->mapbase;
+ if (data->regs)
+ /* Already mapped by setup code */
+ port->membase = data->regs;
else {
port->flags |= UPF_IOREMAP;
port->membase = NULL;
diff --git a/include/asm-arm/arch-at91rm9200/board.h b/include/asm-arm/arch-at91rm9200/board.h
index d565270..3cc9aec 100644
--- a/include/asm-arm/arch-at91rm9200/board.h
+++ b/include/asm-arm/arch-at91rm9200/board.h
@@ -103,6 +103,7 @@ extern void __init at91_init_serial(struct at91_uart_config *config);
struct atmel_uart_data {
short use_dma_tx; /* use transmit DMA? */
short use_dma_rx; /* use receive DMA? */
+ void __iomem *regs; /* virtual base address, if any */
};
extern void __init at91_add_device_serial(void);
diff --git a/include/asm-avr32/arch-at32ap/board.h b/include/asm-avr32/arch-at32ap/board.h
index 82e5404..4355072 100644
--- a/include/asm-avr32/arch-at32ap/board.h
+++ b/include/asm-avr32/arch-at32ap/board.h
@@ -12,6 +12,11 @@ void at32_add_system_devices(void);
#define ATMEL_MAX_UART 4
extern struct platform_device *atmel_default_console_device;
+struct atmel_uart_data {
+ short use_dma_tx; /* use transmit DMA? */
+ short use_dma_rx; /* use receive DMA? */
+ void __iomem *regs; /* virtual base address, if any */
+};
struct platform_device *at32_add_device_usart(unsigned int id);
struct eth_platform_data {
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