diff options
Diffstat (limited to 'arch/avr32')
| -rw-r--r-- | arch/avr32/mach-at32ap/at32ap7000.c | 144 | ||||
| -rw-r--r-- | arch/avr32/mach-at32ap/pio.c | 85 |
2 files changed, 146 insertions, 83 deletions
diff --git a/arch/avr32/mach-at32ap/at32ap7000.c b/arch/avr32/mach-at32ap/at32ap7000.c index 7ff6ad8..ada7930 100644 --- a/arch/avr32/mach-at32ap/at32ap7000.c +++ b/arch/avr32/mach-at32ap/at32ap7000.c @@ -11,6 +11,7 @@ #include <asm/io.h> +#include <asm/arch/at32ap7000.h> #include <asm/arch/board.h> #include <asm/arch/portmux.h> #include <asm/arch/sm.h> @@ -57,6 +58,9 @@ static struct platform_device _name##_id##_device = { \ .num_resources = ARRAY_SIZE(_name##_id##_resource), \ } +#define select_peripheral(pin, periph, flags) \ + at32_select_periph(GPIO_PIN_##pin, GPIO_##periph, flags) + #define DEV_CLK(_name, devname, bus, _index) \ static struct clk devname##_##_name = { \ .name = #_name, \ @@ -67,18 +71,6 @@ static struct clk devname##_##_name = { \ .index = _index, \ } -enum { - PIOA, - PIOB, - PIOC, - PIOD, -}; - -enum { - FUNC_A, - FUNC_B, -}; - unsigned long at32ap7000_osc_rates[3] = { [0] = 32768, /* FIXME: these are ATSTK1002-specific */ @@ -569,26 +561,26 @@ DEV_CLK(usart, atmel_usart3, pba, 6); static inline void configure_usart0_pins(void) { - portmux_set_func(PIOA, 8, FUNC_B); /* RXD */ - portmux_set_func(PIOA, 9, FUNC_B); /* TXD */ + select_peripheral(PA(8), PERIPH_B, 0); /* RXD */ + select_peripheral(PA(9), PERIPH_B, 0); /* TXD */ } static inline void configure_usart1_pins(void) { - portmux_set_func(PIOA, 17, FUNC_A); /* RXD */ - portmux_set_func(PIOA, 18, FUNC_A); /* TXD */ + select_peripheral(PA(17), PERIPH_A, 0); /* RXD */ + select_peripheral(PA(18), PERIPH_A, 0); /* TXD */ } static inline void configure_usart2_pins(void) { - portmux_set_func(PIOB, 26, FUNC_B); /* RXD */ - portmux_set_func(PIOB, 27, FUNC_B); /* TXD */ + select_peripheral(PB(26), PERIPH_B, 0); /* RXD */ + select_peripheral(PB(27), PERIPH_B, 0); /* TXD */ } static inline void configure_usart3_pins(void) { - portmux_set_func(PIOB, 18, FUNC_B); /* RXD */ - portmux_set_func(PIOB, 17, FUNC_B); /* TXD */ + select_peripheral(PB(18), PERIPH_B, 0); /* RXD */ + select_peripheral(PB(17), PERIPH_B, 0); /* TXD */ } static struct platform_device *at32_usarts[4]; @@ -663,27 +655,27 @@ at32_add_device_eth(unsigned int id, struct eth_platform_data *data) case 0: pdev = &macb0_device; - portmux_set_func(PIOC, 3, FUNC_A); /* TXD0 */ - portmux_set_func(PIOC, 4, FUNC_A); /* TXD1 */ - portmux_set_func(PIOC, 7, FUNC_A); /* TXEN */ - portmux_set_func(PIOC, 8, FUNC_A); /* TXCK */ - portmux_set_func(PIOC, 9, FUNC_A); /* RXD0 */ - portmux_set_func(PIOC, 10, FUNC_A); /* RXD1 */ - portmux_set_func(PIOC, 13, FUNC_A); /* RXER */ - portmux_set_func(PIOC, 15, FUNC_A); /* RXDV */ - portmux_set_func(PIOC, 16, FUNC_A); /* MDC */ - portmux_set_func(PIOC, 17, FUNC_A); /* MDIO */ + select_peripheral(PC(3), PERIPH_A, 0); /* TXD0 */ + select_peripheral(PC(4), PERIPH_A, 0); /* TXD1 */ + select_peripheral(PC(7), PERIPH_A, 0); /* TXEN */ + select_peripheral(PC(8), PERIPH_A, 0); /* TXCK */ + select_peripheral(PC(9), PERIPH_A, 0); /* RXD0 */ + select_peripheral(PC(10), PERIPH_A, 0); /* RXD1 */ + select_peripheral(PC(13), PERIPH_A, 0); /* RXER */ + select_peripheral(PC(15), PERIPH_A, 0); /* RXDV */ + select_peripheral(PC(16), PERIPH_A, 0); /* MDC */ + select_peripheral(PC(17), PERIPH_A, 0); /* MDIO */ if (!data->is_rmii) { - portmux_set_func(PIOC, 0, FUNC_A); /* COL */ - portmux_set_func(PIOC, 1, FUNC_A); /* CRS */ - portmux_set_func(PIOC, 2, FUNC_A); /* TXER */ - portmux_set_func(PIOC, 5, FUNC_A); /* TXD2 */ - portmux_set_func(PIOC, 6, FUNC_A); /* TXD3 */ - portmux_set_func(PIOC, 11, FUNC_A); /* RXD2 */ - portmux_set_func(PIOC, 12, FUNC_A); /* RXD3 */ - portmux_set_func(PIOC, 14, FUNC_A); /* RXCK */ - portmux_set_func(PIOC, 18, FUNC_A); /* SPD */ + select_peripheral(PC(0), PERIPH_A, 0); /* COL */ + select_peripheral(PC(1), PERIPH_A, 0); /* CRS */ + select_peripheral(PC(2), PERIPH_A, 0); /* TXER */ + select_peripheral(PC(5), PERIPH_A, 0); /* TXD2 */ + select_peripheral(PC(6), PERIPH_A, 0); /* TXD3 */ + select_peripheral(PC(11), PERIPH_A, 0); /* RXD2 */ + select_peripheral(PC(12), PERIPH_A, 0); /* RXD3 */ + select_peripheral(PC(14), PERIPH_A, 0); /* RXCK */ + select_peripheral(PC(18), PERIPH_A, 0); /* SPD */ } break; @@ -714,12 +706,12 @@ struct platform_device *__init at32_add_device_spi(unsigned int id) switch (id) { case 0: pdev = &spi0_device; - portmux_set_func(PIOA, 0, FUNC_A); /* MISO */ - portmux_set_func(PIOA, 1, FUNC_A); /* MOSI */ - portmux_set_func(PIOA, 2, FUNC_A); /* SCK */ - portmux_set_func(PIOA, 3, FUNC_A); /* NPCS0 */ - portmux_set_func(PIOA, 4, FUNC_A); /* NPCS1 */ - portmux_set_func(PIOA, 5, FUNC_A); /* NPCS2 */ + select_peripheral(PA(0), PERIPH_A, 0); /* MISO */ + select_peripheral(PA(1), PERIPH_A, 0); /* MOSI */ + select_peripheral(PA(2), PERIPH_A, 0); /* SCK */ + select_peripheral(PA(3), PERIPH_A, 0); /* NPCS0 */ + select_peripheral(PA(4), PERIPH_A, 0); /* NPCS1 */ + select_peripheral(PA(5), PERIPH_A, 0); /* NPCS2 */ break; default: @@ -762,37 +754,37 @@ at32_add_device_lcdc(unsigned int id, struct lcdc_platform_data *data) switch (id) { case 0: pdev = &lcdc0_device; - portmux_set_func(PIOC, 19, FUNC_A); /* CC */ - portmux_set_func(PIOC, 20, FUNC_A); /* HSYNC */ - portmux_set_func(PIOC, 21, FUNC_A); /* PCLK */ - portmux_set_func(PIOC, 22, FUNC_A); /* VSYNC */ - portmux_set_func(PIOC, 23, FUNC_A); /* DVAL */ - portmux_set_func(PIOC, 24, FUNC_A); /* MODE */ - portmux_set_func(PIOC, 25, FUNC_A); /* PWR */ - portmux_set_func(PIOC, 26, FUNC_A); /* DATA0 */ - portmux_set_func(PIOC, 27, FUNC_A); /* DATA1 */ - portmux_set_func(PIOC, 28, FUNC_A); /* DATA2 */ - portmux_set_func(PIOC, 29, FUNC_A); /* DATA3 */ - portmux_set_func(PIOC, 30, FUNC_A); /* DATA4 */ - portmux_set_func(PIOC, 31, FUNC_A); /* DATA5 */ - portmux_set_func(PIOD, 0, FUNC_A); /* DATA6 */ - portmux_set_func(PIOD, 1, FUNC_A); /* DATA7 */ - portmux_set_func(PIOD, 2, FUNC_A); /* DATA8 */ - portmux_set_func(PIOD, 3, FUNC_A); /* DATA9 */ - portmux_set_func(PIOD, 4, FUNC_A); /* DATA10 */ - portmux_set_func(PIOD, 5, FUNC_A); /* DATA11 */ - portmux_set_func(PIOD, 6, FUNC_A); /* DATA12 */ - portmux_set_func(PIOD, 7, FUNC_A); /* DATA13 */ - portmux_set_func(PIOD, 8, FUNC_A); /* DATA14 */ - portmux_set_func(PIOD, 9, FUNC_A); /* DATA15 */ - portmux_set_func(PIOD, 10, FUNC_A); /* DATA16 */ - portmux_set_func(PIOD, 11, FUNC_A); /* DATA17 */ - portmux_set_func(PIOD, 12, FUNC_A); /* DATA18 */ - portmux_set_func(PIOD, 13, FUNC_A); /* DATA19 */ - portmux_set_func(PIOD, 14, FUNC_A); /* DATA20 */ - portmux_set_func(PIOD, 15, FUNC_A); /* DATA21 */ - portmux_set_func(PIOD, 16, FUNC_A); /* DATA22 */ - portmux_set_func(PIOD, 17, FUNC_A); /* DATA23 */ + select_peripheral(PC(19), PERIPH_A, 0); /* CC */ + select_peripheral(PC(20), PERIPH_A, 0); /* HSYNC */ + select_peripheral(PC(21), PERIPH_A, 0); /* PCLK */ + select_peripheral(PC(22), PERIPH_A, 0); /* VSYNC */ + select_peripheral(PC(23), PERIPH_A, 0); /* DVAL */ + select_peripheral(PC(24), PERIPH_A, 0); /* MODE */ + select_peripheral(PC(25), PERIPH_A, 0); /* PWR */ + select_peripheral(PC(26), PERIPH_A, 0); /* DATA0 */ + select_peripheral(PC(27), PERIPH_A, 0); /* DATA1 */ + select_peripheral(PC(28), PERIPH_A, 0); /* DATA2 */ + select_peripheral(PC(29), PERIPH_A, 0); /* DATA3 */ + select_peripheral(PC(30), PERIPH_A, 0); /* DATA4 */ + select_peripheral(PC(31), PERIPH_A, 0); /* DATA5 */ + select_peripheral(PD(0), PERIPH_A, 0); /* DATA6 */ + select_peripheral(PD(1), PERIPH_A, 0); /* DATA7 */ + select_peripheral(PD(2), PERIPH_A, 0); /* DATA8 */ + select_peripheral(PD(3), PERIPH_A, 0); /* DATA9 */ + select_peripheral(PD(4), PERIPH_A, 0); /* DATA10 */ + select_peripheral(PD(5), PERIPH_A, 0); /* DATA11 */ + select_peripheral(PD(6), PERIPH_A, 0); /* DATA12 */ + select_peripheral(PD(7), PERIPH_A, 0); /* DATA13 */ + select_peripheral(PD(8), PERIPH_A, 0); /* DATA14 */ + select_peripheral(PD(9), PERIPH_A, 0); /* DATA15 */ + select_peripheral(PD(10), PERIPH_A, 0); /* DATA16 */ + select_peripheral(PD(11), PERIPH_A, 0); /* DATA17 */ + select_peripheral(PD(12), PERIPH_A, 0); /* DATA18 */ + select_peripheral(PD(13), PERIPH_A, 0); /* DATA19 */ + select_peripheral(PD(14), PERIPH_A, 0); /* DATA20 */ + select_peripheral(PD(15), PERIPH_A, 0); /* DATA21 */ + select_peripheral(PD(16), PERIPH_A, 0); /* DATA22 */ + select_peripheral(PD(17), PERIPH_A, 0); /* DATA23 */ clk_set_parent(&lcdc0_pixclk, &pll0); clk_set_rate(&lcdc0_pixclk, clk_get_rate(&pll0)); diff --git a/arch/avr32/mach-at32ap/pio.c b/arch/avr32/mach-at32ap/pio.c index d3aabfc..f1280ed 100644 --- a/arch/avr32/mach-at32ap/pio.c +++ b/arch/avr32/mach-at32ap/pio.c @@ -25,27 +25,98 @@ struct pio_device { void __iomem *regs; const struct platform_device *pdev; struct clk *clk; - u32 alloc_mask; + u32 pinmux_mask; char name[32]; }; static struct pio_device pio_dev[MAX_NR_PIO_DEVICES]; -void portmux_set_func(unsigned int portmux_id, unsigned int pin_id, - unsigned int function_id) +static struct pio_device *gpio_to_pio(unsigned int gpio) { struct pio_device *pio; - u32 mask = 1 << pin_id; + unsigned int index; - BUG_ON(portmux_id >= MAX_NR_PIO_DEVICES); + index = gpio >> 5; + if (index >= MAX_NR_PIO_DEVICES) + return NULL; + pio = &pio_dev[index]; + if (!pio->regs) + return NULL; - pio = &pio_dev[portmux_id]; + return pio; +} + +/* Pin multiplexing API */ + +void __init at32_select_periph(unsigned int pin, unsigned int periph, + unsigned long flags) +{ + struct pio_device *pio; + unsigned int pin_index = pin & 0x1f; + u32 mask = 1 << pin_index; + + pio = gpio_to_pio(pin); + if (unlikely(!pio)) { + printk("pio: invalid pin %u\n", pin); + goto fail; + } - if (function_id) + if (unlikely(test_and_set_bit(pin_index, &pio->pinmux_mask))) { + printk("%s: pin %u is busy\n", pio->name, pin_index); + goto fail; + } + + pio_writel(pio, PUER, mask); + if (periph) pio_writel(pio, BSR, mask); else pio_writel(pio, ASR, mask); + pio_writel(pio, PDR, mask); + if (!(flags & AT32_GPIOF_PULLUP)) + pio_writel(pio, PUDR, mask); + + return; + +fail: + dump_stack(); +} + +void __init at32_select_gpio(unsigned int pin, unsigned long flags) +{ + struct pio_device *pio; + unsigned int pin_index = pin & 0x1f; + u32 mask = 1 << pin_index; + + pio = gpio_to_pio(pin); + if (unlikely(!pio)) { + printk("pio: invalid pin %u\n", pin); + goto fail; + } + + if (unlikely(test_and_set_bit(pin_index, &pio->pinmux_mask))) { + printk("%s: pin %u is busy\n", pio->name, pin_index); + goto fail; + } + + pio_writel(pio, PUER, mask); + if (flags & AT32_GPIOF_HIGH) + pio_writel(pio, SODR, mask); + else + pio_writel(pio, CODR, mask); + if (flags & AT32_GPIOF_OUTPUT) + pio_writel(pio, OER, mask); + else + pio_writel(pio, ODR, mask); + + pio_writel(pio, PER, mask); + if (!(flags & AT32_GPIOF_PULLUP)) + pio_writel(pio, PUDR, mask); + + return; + +fail: + dump_stack(); } static int __init pio_probe(struct platform_device *pdev) |
