Allow the board to remap actual USART peripheral devices to serial
devices by calling at32_map_usart(hw_id, serial_line). This ensures
that even though ATSTK1002 uses USART1 as the first serial port, it
will still have a ttyS0 device.
This also adds a board-specific early setup hook and moves the
at32_setup_serial_console() call there from the platform code.
Signed-off-by: Haavard Skinnemoen <[email protected]>
---
arch/avr32/boards/atstk1000/atstk1002.c | 16 +++++++++++++---
arch/avr32/kernel/setup.c | 1 +
arch/avr32/mach-at32ap/at32ap.c | 3 ---
arch/avr32/mach-at32ap/at32ap7000.c | 22 ++++++++++------------
include/asm-avr32/arch-at32ap/board.h | 1 +
include/asm-avr32/arch-at32ap/init.h | 1 +
6 files changed, 26 insertions(+), 18 deletions(-)
diff --git a/arch/avr32/boards/atstk1000/atstk1002.c b/arch/avr32/boards/atstk1000/atstk1002.c
index 49164e9..cced73c 100644
--- a/arch/avr32/boards/atstk1000/atstk1002.c
+++ b/arch/avr32/boards/atstk1000/atstk1002.c
@@ -10,6 +10,7 @@
#include <linux/init.h>
#include <asm/arch/board.h>
+#include <asm/arch/init.h>
struct eth_platform_data __initdata eth0_data = {
.valid = 1,
@@ -20,13 +21,22 @@ struct eth_platform_data __initdata eth0
extern struct lcdc_platform_data atstk1000_fb0_data;
+void __init setup_board(void)
+{
+ at32_map_usart(1, 0); /* /dev/ttyS0 */
+ at32_map_usart(2, 1); /* /dev/ttyS1 */
+ at32_map_usart(3, 2); /* /dev/ttyS2 */
+
+ at32_setup_serial_console(0);
+}
+
static int __init atstk1002_init(void)
{
at32_add_system_devices();
- at32_add_device_usart(1); /* /dev/ttyS0 */
- at32_add_device_usart(2); /* /dev/ttyS1 */
- at32_add_device_usart(3); /* /dev/ttyS2 */
+ at32_add_device_usart(0);
+ at32_add_device_usart(1);
+ at32_add_device_usart(2);
at32_add_device_eth(0, ð0_data);
at32_add_device_spi(0);
diff --git a/arch/avr32/kernel/setup.c b/arch/avr32/kernel/setup.c
index 5d68f3c..ea2d1ff 100644
--- a/arch/avr32/kernel/setup.c
+++ b/arch/avr32/kernel/setup.c
@@ -292,6 +292,7 @@ void __init setup_arch (char **cmdline_p
setup_processor();
setup_platform();
+ setup_board();
cpu_clk = clk_get(NULL, "cpu");
if (IS_ERR(cpu_clk)) {
diff --git a/arch/avr32/mach-at32ap/at32ap.c b/arch/avr32/mach-at32ap/at32ap.c
index f7cedf5..90f207e 100644
--- a/arch/avr32/mach-at32ap/at32ap.c
+++ b/arch/avr32/mach-at32ap/at32ap.c
@@ -48,9 +48,6 @@ void __init setup_platform(void)
at32_sm_init();
at32_clock_init();
at32_portmux_init();
-
- /* FIXME: This doesn't belong here */
- at32_setup_serial_console(1);
}
static int __init pdc_probe(struct platform_device *pdev)
diff --git a/arch/avr32/mach-at32ap/at32ap7000.c b/arch/avr32/mach-at32ap/at32ap7000.c
index 3dd3058..7ff6ad8 100644
--- a/arch/avr32/mach-at32ap/at32ap7000.c
+++ b/arch/avr32/mach-at32ap/at32ap7000.c
@@ -591,11 +591,13 @@ static inline void configure_usart3_pins
portmux_set_func(PIOB, 17, FUNC_B); /* TXD */
}
-static struct platform_device *setup_usart(unsigned int id)
+static struct platform_device *at32_usarts[4];
+
+void __init at32_map_usart(unsigned int hw_id, unsigned int line)
{
struct platform_device *pdev;
- switch (id) {
+ switch (hw_id) {
case 0:
pdev = &atmel_usart0_device;
configure_usart0_pins();
@@ -613,7 +615,7 @@ static struct platform_device *setup_usa
configure_usart3_pins();
break;
default:
- return NULL;
+ return;
}
if (PXSEG(pdev->resource[0].start) == P4SEG) {
@@ -622,25 +624,21 @@ static struct platform_device *setup_usa
data->regs = (void __iomem *)pdev->resource[0].start;
}
- return pdev;
+ pdev->id = line;
+ at32_usarts[line] = pdev;
}
struct platform_device *__init at32_add_device_usart(unsigned int id)
{
- struct platform_device *pdev;
-
- pdev = setup_usart(id);
- if (pdev)
- platform_device_register(pdev);
-
- return pdev;
+ platform_device_register(at32_usarts[id]);
+ return at32_usarts[id];
}
struct platform_device *atmel_default_console_device;
void __init at32_setup_serial_console(unsigned int usart_id)
{
- atmel_default_console_device = setup_usart(usart_id);
+ atmel_default_console_device = at32_usarts[usart_id];
}
/* --------------------------------------------------------------------
diff --git a/include/asm-avr32/arch-at32ap/board.h b/include/asm-avr32/arch-at32ap/board.h
index 4355072..a39b3e9 100644
--- a/include/asm-avr32/arch-at32ap/board.h
+++ b/include/asm-avr32/arch-at32ap/board.h
@@ -17,6 +17,7 @@ struct atmel_uart_data {
short use_dma_rx; /* use receive DMA? */
void __iomem *regs; /* virtual base address, if any */
};
+void at32_map_usart(unsigned int hw_id, unsigned int line);
struct platform_device *at32_add_device_usart(unsigned int id);
struct eth_platform_data {
diff --git a/include/asm-avr32/arch-at32ap/init.h b/include/asm-avr32/arch-at32ap/init.h
index 4372263..5e75d85 100644
--- a/include/asm-avr32/arch-at32ap/init.h
+++ b/include/asm-avr32/arch-at32ap/init.h
@@ -11,6 +11,7 @@ #ifndef __ASM_AVR32_AT32AP_INIT_H__
#define __ASM_AVR32_AT32AP_INIT_H__
void setup_platform(void);
+void setup_board(void);
/* Called by setup_platform */
void at32_clock_init(void);
--
1.4.1.1
-
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