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| author | Haavard Skinnemoen <hskinnemoen@atmel.com> | 2006-10-04 16:02:10 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-10-04 10:25:06 -0700 |
| commit | c194588dba968510b5aa7a1818bd2c8b36a416f7 (patch) | |
| tree | 4c9379f6482572340ab701c369e8b01eb2b43493 /arch/avr32/mach-at32ap/at32ap7000.c | |
| parent | acca9b83acfe89fbb7421d5412176dee2ad2959a (diff) | |
| download | linux-c194588dba968510b5aa7a1818bd2c8b36a416f7.tar.gz linux-c194588dba968510b5aa7a1818bd2c8b36a416f7.tar.bz2 linux-c194588dba968510b5aa7a1818bd2c8b36a416f7.zip | |
[PATCH] AVR32: Allow renumbering of serial devices
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 <hskinnemoen@atmel.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/avr32/mach-at32ap/at32ap7000.c')
| -rw-r--r-- | arch/avr32/mach-at32ap/at32ap7000.c | 22 |
1 files changed, 10 insertions, 12 deletions
diff --git a/arch/avr32/mach-at32ap/at32ap7000.c b/arch/avr32/mach-at32ap/at32ap7000.c index 3dd305875087..7ff6ad8bab5f 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(void) 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_usart(unsigned int id) configure_usart3_pins(); break; default: - return NULL; + return; } if (PXSEG(pdev->resource[0].start) == P4SEG) { @@ -622,25 +624,21 @@ static struct platform_device *setup_usart(unsigned int id) 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]; } /* -------------------------------------------------------------------- |