diff options
author | Alex Raimondi <raimondi@miromico.ch> | 2008-11-04 22:37:10 (GMT) |
---|---|---|
committer | Haavard Skinnemoen <haavard.skinnemoen@atmel.com> | 2009-01-05 11:16:13 (GMT) |
commit | adde42b5834ed367ef7455d465bd9610190ad2a0 (patch) | |
tree | 77300eed45fbe2f67f458bbd3b1ab022b7f82894 /arch/avr32 | |
parent | 45f926912fb960c7c09c12906143b9dbaddf58cb (diff) | |
download | linux-fsl-qoriq-adde42b5834ed367ef7455d465bd9610190ad2a0.tar.xz |
avr32: Allow reserving multiple pins at once
at32_reserve_pin now takes an u32 bitmask rather than a single pin.
This allows to reserve multiple pins at once.
Remove (undocumented) SDCS (pin PE26) from reservation in board
setup code.
Signed-off-by: Alex Raimondi <raimondi@miromico.ch>
Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Diffstat (limited to 'arch/avr32')
-rw-r--r-- | arch/avr32/boards/atstk1000/atstk1002.c | 18 | ||||
-rw-r--r-- | arch/avr32/boards/atstk1000/atstk1003.c | 18 | ||||
-rw-r--r-- | arch/avr32/boards/favr-32/setup.c | 18 | ||||
-rw-r--r-- | arch/avr32/mach-at32ap/include/mach/at32ap700x.h | 3 | ||||
-rw-r--r-- | arch/avr32/mach-at32ap/include/mach/portmux.h | 2 | ||||
-rw-r--r-- | arch/avr32/mach-at32ap/pio.c | 19 |
6 files changed, 20 insertions, 58 deletions
diff --git a/arch/avr32/boards/atstk1000/atstk1002.c b/arch/avr32/boards/atstk1000/atstk1002.c index 5c5cdf3..11e7800 100644 --- a/arch/avr32/boards/atstk1000/atstk1002.c +++ b/arch/avr32/boards/atstk1000/atstk1002.c @@ -287,23 +287,7 @@ static int __init atstk1002_init(void) * ATSTK1000 uses 32-bit SDRAM interface. Reserve the * SDRAM-specific pins so that nobody messes with them. */ - at32_reserve_pin(GPIO_PIN_PE(0)); /* DATA[16] */ - at32_reserve_pin(GPIO_PIN_PE(1)); /* DATA[17] */ - at32_reserve_pin(GPIO_PIN_PE(2)); /* DATA[18] */ - at32_reserve_pin(GPIO_PIN_PE(3)); /* DATA[19] */ - at32_reserve_pin(GPIO_PIN_PE(4)); /* DATA[20] */ - at32_reserve_pin(GPIO_PIN_PE(5)); /* DATA[21] */ - at32_reserve_pin(GPIO_PIN_PE(6)); /* DATA[22] */ - at32_reserve_pin(GPIO_PIN_PE(7)); /* DATA[23] */ - at32_reserve_pin(GPIO_PIN_PE(8)); /* DATA[24] */ - at32_reserve_pin(GPIO_PIN_PE(9)); /* DATA[25] */ - at32_reserve_pin(GPIO_PIN_PE(10)); /* DATA[26] */ - at32_reserve_pin(GPIO_PIN_PE(11)); /* DATA[27] */ - at32_reserve_pin(GPIO_PIN_PE(12)); /* DATA[28] */ - at32_reserve_pin(GPIO_PIN_PE(13)); /* DATA[29] */ - at32_reserve_pin(GPIO_PIN_PE(14)); /* DATA[30] */ - at32_reserve_pin(GPIO_PIN_PE(15)); /* DATA[31] */ - at32_reserve_pin(GPIO_PIN_PE(26)); /* SDCS */ + at32_reserve_pin(GPIO_PIOE_BASE, ATMEL_EBI_PE_DATA_ALL); #ifdef CONFIG_BOARD_ATSTK1006 smc_set_timing(&nand_config, &nand_timing); diff --git a/arch/avr32/boards/atstk1000/atstk1003.c b/arch/avr32/boards/atstk1000/atstk1003.c index 134b566..ac31666 100644 --- a/arch/avr32/boards/atstk1000/atstk1003.c +++ b/arch/avr32/boards/atstk1000/atstk1003.c @@ -131,23 +131,7 @@ static int __init atstk1003_init(void) * ATSTK1000 uses 32-bit SDRAM interface. Reserve the * SDRAM-specific pins so that nobody messes with them. */ - at32_reserve_pin(GPIO_PIN_PE(0)); /* DATA[16] */ - at32_reserve_pin(GPIO_PIN_PE(1)); /* DATA[17] */ - at32_reserve_pin(GPIO_PIN_PE(2)); /* DATA[18] */ - at32_reserve_pin(GPIO_PIN_PE(3)); /* DATA[19] */ - at32_reserve_pin(GPIO_PIN_PE(4)); /* DATA[20] */ - at32_reserve_pin(GPIO_PIN_PE(5)); /* DATA[21] */ - at32_reserve_pin(GPIO_PIN_PE(6)); /* DATA[22] */ - at32_reserve_pin(GPIO_PIN_PE(7)); /* DATA[23] */ - at32_reserve_pin(GPIO_PIN_PE(8)); /* DATA[24] */ - at32_reserve_pin(GPIO_PIN_PE(9)); /* DATA[25] */ - at32_reserve_pin(GPIO_PIN_PE(10)); /* DATA[26] */ - at32_reserve_pin(GPIO_PIN_PE(11)); /* DATA[27] */ - at32_reserve_pin(GPIO_PIN_PE(12)); /* DATA[28] */ - at32_reserve_pin(GPIO_PIN_PE(13)); /* DATA[29] */ - at32_reserve_pin(GPIO_PIN_PE(14)); /* DATA[30] */ - at32_reserve_pin(GPIO_PIN_PE(15)); /* DATA[31] */ - at32_reserve_pin(GPIO_PIN_PE(26)); /* SDCS */ + at32_reserve_pin(GPIO_PIOE_BASE, ATMEL_EBI_PE_DATA_ALL); #ifdef CONFIG_BOARD_ATSTK100X_SW2_CUSTOM at32_add_device_usart(1); diff --git a/arch/avr32/boards/favr-32/setup.c b/arch/avr32/boards/favr-32/setup.c index ff8235a..006a04e 100644 --- a/arch/avr32/boards/favr-32/setup.c +++ b/arch/avr32/boards/favr-32/setup.c @@ -307,23 +307,7 @@ static int __init favr32_init(void) * Favr-32 uses 32-bit SDRAM interface. Reserve the SDRAM-specific * pins so that nobody messes with them. */ - at32_reserve_pin(GPIO_PIN_PE(0)); /* DATA[16] */ - at32_reserve_pin(GPIO_PIN_PE(1)); /* DATA[17] */ - at32_reserve_pin(GPIO_PIN_PE(2)); /* DATA[18] */ - at32_reserve_pin(GPIO_PIN_PE(3)); /* DATA[19] */ - at32_reserve_pin(GPIO_PIN_PE(4)); /* DATA[20] */ - at32_reserve_pin(GPIO_PIN_PE(5)); /* DATA[21] */ - at32_reserve_pin(GPIO_PIN_PE(6)); /* DATA[22] */ - at32_reserve_pin(GPIO_PIN_PE(7)); /* DATA[23] */ - at32_reserve_pin(GPIO_PIN_PE(8)); /* DATA[24] */ - at32_reserve_pin(GPIO_PIN_PE(9)); /* DATA[25] */ - at32_reserve_pin(GPIO_PIN_PE(10)); /* DATA[26] */ - at32_reserve_pin(GPIO_PIN_PE(11)); /* DATA[27] */ - at32_reserve_pin(GPIO_PIN_PE(12)); /* DATA[28] */ - at32_reserve_pin(GPIO_PIN_PE(13)); /* DATA[29] */ - at32_reserve_pin(GPIO_PIN_PE(14)); /* DATA[30] */ - at32_reserve_pin(GPIO_PIN_PE(15)); /* DATA[31] */ - at32_reserve_pin(GPIO_PIN_PE(26)); /* SDCS */ + at32_reserve_pin(GPIO_PIOE_BASE, ATMEL_EBI_PE_DATA_ALL); at32_select_gpio(GPIO_PIN_PB(3), 0); /* IRQ from ADS7843 */ diff --git a/arch/avr32/mach-at32ap/include/mach/at32ap700x.h b/arch/avr32/mach-at32ap/include/mach/at32ap700x.h index a77d372..5c4c971 100644 --- a/arch/avr32/mach-at32ap/include/mach/at32ap700x.h +++ b/arch/avr32/mach-at32ap/include/mach/at32ap700x.h @@ -211,4 +211,7 @@ #define ATMEL_LCDC_ALT_15BIT (ATMEL_LCDC_CONTROL | ATMEL_LCDC_ALT_15B_DATA) +/* Bitmask for all EBI data (D16..D31) pins on port E */ +#define ATMEL_EBI_PE_DATA_ALL (0x0000FFFF) + #endif /* __ASM_ARCH_AT32AP700X_H__ */ diff --git a/arch/avr32/mach-at32ap/include/mach/portmux.h b/arch/avr32/mach-at32ap/include/mach/portmux.h index 21c7937..4873024 100644 --- a/arch/avr32/mach-at32ap/include/mach/portmux.h +++ b/arch/avr32/mach-at32ap/include/mach/portmux.h @@ -25,6 +25,6 @@ void at32_select_periph(unsigned int port, unsigned int pin, unsigned int periph, unsigned long flags); void at32_select_gpio(unsigned int pin, unsigned long flags); void at32_deselect_pin(unsigned int pin); -void at32_reserve_pin(unsigned int pin); +void at32_reserve_pin(unsigned int port, u32 pin_mask); #endif /* __ASM_ARCH_PORTMUX_H__ */ diff --git a/arch/avr32/mach-at32ap/pio.c b/arch/avr32/mach-at32ap/pio.c index ed81a8b..09a274c 100644 --- a/arch/avr32/mach-at32ap/pio.c +++ b/arch/avr32/mach-at32ap/pio.c @@ -167,22 +167,29 @@ void at32_deselect_pin(unsigned int pin) } /* Reserve a pin, preventing anyone else from changing its configuration. */ -void __init at32_reserve_pin(unsigned int pin) +void __init at32_reserve_pin(unsigned int port, u32 pin_mask) { struct pio_device *pio; - unsigned int pin_index = pin & 0x1f; - pio = gpio_to_pio(pin); + /* assign and verify pio */ + pio = gpio_to_pio(port); if (unlikely(!pio)) { - printk("pio: invalid pin %u\n", pin); + printk(KERN_WARNING "pio: invalid port %u\n", port); goto fail; } - if (unlikely(test_and_set_bit(pin_index, &pio->pinmux_mask))) { - printk("%s: pin %u is busy\n", pio->name, pin_index); + /* Test if any of the requested pins is already muxed */ + spin_lock(&pio_lock); + if (unlikely(pio->pinmux_mask & pin_mask)) { + printk(KERN_WARNING "%s: pin(s) busy (req. 0x%x, busy 0x%x)\n", + pio->name, pin_mask, pio->pinmux_mask & pin_mask); + spin_unlock(&pio_lock); goto fail; } + /* Reserve pins */ + pio->pinmux_mask |= pin_mask; + spin_unlock(&pio_lock); return; fail: |