diff options
Diffstat (limited to 'cpu')
| -rw-r--r-- | cpu/at32ap/Makefile | 2 | ||||
| -rw-r--r-- | cpu/at32ap/at32ap700x/Makefile | 2 | ||||
| -rw-r--r-- | cpu/at32ap/at32ap700x/gpio.c | 199 | ||||
| -rw-r--r-- | cpu/at32ap/at32ap700x/portmux.c | 204 | ||||
| -rw-r--r-- | cpu/at32ap/pio.c | 116 | ||||
| -rw-r--r-- | cpu/at32ap/portmux-pio.c | 92 |
6 files changed, 298 insertions, 317 deletions
diff --git a/cpu/at32ap/Makefile b/cpu/at32ap/Makefile index 33dc427681..100cf3e74a 100644 --- a/cpu/at32ap/Makefile +++ b/cpu/at32ap/Makefile @@ -34,7 +34,7 @@ COBJS-y += hsdramc.o COBJS-y += exception.o COBJS-y += cache.o COBJS-y += interrupts.o -COBJS-y += pio.o +COBJS-$(CONFIG_PORTMUX_PIO) += portmux-pio.o SRCS := $(START-y:.o=.S) $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c) OBJS := $(addprefix $(obj),$(SOBJS-y) $(COBJS-y)) diff --git a/cpu/at32ap/at32ap700x/Makefile b/cpu/at32ap/at32ap700x/Makefile index 740423563e..46e6ef661a 100644 --- a/cpu/at32ap/at32ap700x/Makefile +++ b/cpu/at32ap/at32ap700x/Makefile @@ -24,7 +24,7 @@ include $(TOPDIR)/config.mk LIB := $(obj)lib$(SOC).a -COBJS := gpio.o clk.o +COBJS := portmux.o clk.o SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c) OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS)) diff --git a/cpu/at32ap/at32ap700x/gpio.c b/cpu/at32ap/at32ap700x/gpio.c deleted file mode 100644 index 56ba2f90c6..0000000000 --- a/cpu/at32ap/at32ap700x/gpio.c +++ /dev/null @@ -1,199 +0,0 @@ -/* - * Copyright (C) 2006 Atmel Corporation - * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ -#include <common.h> - -#include <asm/io.h> - -#include <asm/arch/chip-features.h> -#include <asm/arch/gpio.h> -#include <asm/arch/memory-map.h> - -/* - * Lots of small functions here. We depend on --gc-sections getting - * rid of the ones we don't need. - */ -void gpio_enable_ebi(void) -{ -#ifdef CFG_HSDRAMC -#ifndef CFG_SDRAM_16BIT - gpio_select_periph_A(GPIO_PIN_PE0, 0); - gpio_select_periph_A(GPIO_PIN_PE1, 0); - gpio_select_periph_A(GPIO_PIN_PE2, 0); - gpio_select_periph_A(GPIO_PIN_PE3, 0); - gpio_select_periph_A(GPIO_PIN_PE4, 0); - gpio_select_periph_A(GPIO_PIN_PE5, 0); - gpio_select_periph_A(GPIO_PIN_PE6, 0); - gpio_select_periph_A(GPIO_PIN_PE7, 0); - gpio_select_periph_A(GPIO_PIN_PE8, 0); - gpio_select_periph_A(GPIO_PIN_PE9, 0); - gpio_select_periph_A(GPIO_PIN_PE10, 0); - gpio_select_periph_A(GPIO_PIN_PE11, 0); - gpio_select_periph_A(GPIO_PIN_PE12, 0); - gpio_select_periph_A(GPIO_PIN_PE13, 0); - gpio_select_periph_A(GPIO_PIN_PE14, 0); - gpio_select_periph_A(GPIO_PIN_PE15, 0); -#endif - gpio_select_periph_A(GPIO_PIN_PE26, 0); -#endif -} - -#ifdef AT32AP700x_CHIP_HAS_USART -void gpio_enable_usart0(void) -{ - gpio_select_periph_B(GPIO_PIN_PA8, 0); - gpio_select_periph_B(GPIO_PIN_PA9, 0); -} - -void gpio_enable_usart1(void) -{ - gpio_select_periph_A(GPIO_PIN_PA17, 0); - gpio_select_periph_A(GPIO_PIN_PA18, 0); -} - -void gpio_enable_usart2(void) -{ - gpio_select_periph_B(GPIO_PIN_PB26, 0); - gpio_select_periph_B(GPIO_PIN_PB27, 0); -} - -void gpio_enable_usart3(void) -{ - gpio_select_periph_B(GPIO_PIN_PB17, 0); - gpio_select_periph_B(GPIO_PIN_PB18, 0); -} -#endif - -#ifdef AT32AP700x_CHIP_HAS_MACB -void gpio_enable_macb0(void) -{ - gpio_select_periph_A(GPIO_PIN_PC3, 0); /* TXD0 */ - gpio_select_periph_A(GPIO_PIN_PC4, 0); /* TXD1 */ - gpio_select_periph_A(GPIO_PIN_PC7, 0); /* TXEN */ - gpio_select_periph_A(GPIO_PIN_PC8, 0); /* TXCK */ - gpio_select_periph_A(GPIO_PIN_PC9, 0); /* RXD0 */ - gpio_select_periph_A(GPIO_PIN_PC10, 0); /* RXD1 */ - gpio_select_periph_A(GPIO_PIN_PC13, 0); /* RXER */ - gpio_select_periph_A(GPIO_PIN_PC15, 0); /* RXDV */ - gpio_select_periph_A(GPIO_PIN_PC16, 0); /* MDC */ - gpio_select_periph_A(GPIO_PIN_PC17, 0); /* MDIO */ -#if !defined(CONFIG_RMII) - gpio_select_periph_A(GPIO_PIN_PC0, 0); /* COL */ - gpio_select_periph_A(GPIO_PIN_PC1, 0); /* CRS */ - gpio_select_periph_A(GPIO_PIN_PC2, 0); /* TXER */ - gpio_select_periph_A(GPIO_PIN_PC5, 0); /* TXD2 */ - gpio_select_periph_A(GPIO_PIN_PC6, 0); /* TXD3 */ - gpio_select_periph_A(GPIO_PIN_PC11, 0); /* RXD2 */ - gpio_select_periph_A(GPIO_PIN_PC12, 0); /* RXD3 */ - gpio_select_periph_A(GPIO_PIN_PC14, 0); /* RXCK */ - gpio_select_periph_A(GPIO_PIN_PC18, 0); /* SPD */ -#endif -} - -void gpio_enable_macb1(void) -{ - gpio_select_periph_B(GPIO_PIN_PD13, 0); /* TXD0 */ - gpio_select_periph_B(GPIO_PIN_PD14, 0); /* TXD1 */ - gpio_select_periph_B(GPIO_PIN_PD11, 0); /* TXEN */ - gpio_select_periph_B(GPIO_PIN_PD12, 0); /* TXCK */ - gpio_select_periph_B(GPIO_PIN_PD10, 0); /* RXD0 */ - gpio_select_periph_B(GPIO_PIN_PD6, 0); /* RXD1 */ - gpio_select_periph_B(GPIO_PIN_PD5, 0); /* RXER */ - gpio_select_periph_B(GPIO_PIN_PD4, 0); /* RXDV */ - gpio_select_periph_B(GPIO_PIN_PD3, 0); /* MDC */ - gpio_select_periph_B(GPIO_PIN_PD2, 0); /* MDIO */ -#if !defined(CONFIG_RMII) - gpio_select_periph_B(GPIO_PIN_PC19, 0); /* COL */ - gpio_select_periph_B(GPIO_PIN_PC23, 0); /* CRS */ - gpio_select_periph_B(GPIO_PIN_PC26, 0); /* TXER */ - gpio_select_periph_B(GPIO_PIN_PC27, 0); /* TXD2 */ - gpio_select_periph_B(GPIO_PIN_PC28, 0); /* TXD3 */ - gpio_select_periph_B(GPIO_PIN_PC29, 0); /* RXD2 */ - gpio_select_periph_B(GPIO_PIN_PC30, 0); /* RXD3 */ - gpio_select_periph_B(GPIO_PIN_PC24, 0); /* RXCK */ - gpio_select_periph_B(GPIO_PIN_PD15, 0); /* SPD */ -#endif -} -#endif - -#ifdef AT32AP700x_CHIP_HAS_MMCI -void gpio_enable_mmci(void) -{ - gpio_select_periph_A(GPIO_PIN_PA10, 0); /* CLK */ - gpio_select_periph_A(GPIO_PIN_PA11, 0); /* CMD */ - gpio_select_periph_A(GPIO_PIN_PA12, 0); /* DATA0 */ - gpio_select_periph_A(GPIO_PIN_PA13, 0); /* DATA1 */ - gpio_select_periph_A(GPIO_PIN_PA14, 0); /* DATA2 */ - gpio_select_periph_A(GPIO_PIN_PA15, 0); /* DATA3 */ -} -#endif - -#ifdef AT32AP700x_CHIP_HAS_SPI -void gpio_enable_spi0(unsigned long cs_mask) -{ - gpio_select_periph_A(GPIO_PIN_PA0, 0); /* MISO */ - gpio_select_periph_A(GPIO_PIN_PA1, 0); /* MOSI */ - gpio_select_periph_A(GPIO_PIN_PA2, 0); /* SCK */ - - /* Set up NPCSx as GPIO outputs, initially high */ - if (cs_mask & (1 << 0)) { - gpio_set_value(GPIO_PIN_PA3, 1); - gpio_select_pio(GPIO_PIN_PA3, GPIOF_OUTPUT); - } - if (cs_mask & (1 << 1)) { - gpio_set_value(GPIO_PIN_PA4, 1); - gpio_select_pio(GPIO_PIN_PA4, GPIOF_OUTPUT); - } - if (cs_mask & (1 << 2)) { - gpio_set_value(GPIO_PIN_PA5, 1); - gpio_select_pio(GPIO_PIN_PA5, GPIOF_OUTPUT); - } - if (cs_mask & (1 << 3)) { - gpio_set_value(GPIO_PIN_PA20, 1); - gpio_select_pio(GPIO_PIN_PA20, GPIOF_OUTPUT); - } -} - -void gpio_enable_spi1(unsigned long cs_mask) -{ - gpio_select_periph_B(GPIO_PIN_PA0, 0); /* MISO */ - gpio_select_periph_B(GPIO_PIN_PB1, 0); /* MOSI */ - gpio_select_periph_B(GPIO_PIN_PB5, 0); /* SCK */ - - /* Set up NPCSx as GPIO outputs, initially high */ - if (cs_mask & (1 << 0)) { - gpio_set_value(GPIO_PIN_PB2, 1); - gpio_select_pio(GPIO_PIN_PB2, GPIOF_OUTPUT); - } - if (cs_mask & (1 << 1)) { - gpio_set_value(GPIO_PIN_PB3, 1); - gpio_select_pio(GPIO_PIN_PB3, GPIOF_OUTPUT); - } - if (cs_mask & (1 << 2)) { - gpio_set_value(GPIO_PIN_PB4, 1); - gpio_select_pio(GPIO_PIN_PB4, GPIOF_OUTPUT); - } - if (cs_mask & (1 << 3)) { - gpio_set_value(GPIO_PIN_PA27, 1); - gpio_select_pio(GPIO_PIN_PA27, GPIOF_OUTPUT); - } -} -#endif diff --git a/cpu/at32ap/at32ap700x/portmux.c b/cpu/at32ap/at32ap700x/portmux.c new file mode 100644 index 0000000000..2a3b004b04 --- /dev/null +++ b/cpu/at32ap/at32ap700x/portmux.c @@ -0,0 +1,204 @@ +/* + * Copyright (C) 2006, 2008 Atmel Corporation + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ +#include <common.h> + +#include <asm/io.h> + +#include <asm/arch/chip-features.h> +#include <asm/arch/memory-map.h> +#include <asm/arch/portmux.h> + +/* + * Lots of small functions here. We depend on --gc-sections getting + * rid of the ones we don't need. + */ +void portmux_enable_ebi(unsigned int bus_width, unsigned int addr_width, + unsigned long flags, unsigned long drive_strength) +{ + unsigned long porte_mask = 0; + + if (bus_width > 16) + portmux_select_peripheral(PORTMUX_PORT_E, 0xffff, + PORTMUX_FUNC_A, PORTMUX_BUSKEEPER); + if (addr_width > 23) + porte_mask |= (((1 << (addr_width - 23)) - 1) & 7) << 16; + if (flags & PORTMUX_EBI_CS(2)) + porte_mask |= 1 << 25; + if (flags & PORTMUX_EBI_CS(4)) + porte_mask |= 1 << 21; + if (flags & PORTMUX_EBI_CS(5)) + porte_mask |= 1 << 22; + if (flags & (PORTMUX_EBI_CF(0) | PORTMUX_EBI_CF(1))) + porte_mask |= (1 << 19) | (1 << 20) | (1 << 23); + + portmux_select_peripheral(PORTMUX_PORT_E, porte_mask, + PORTMUX_FUNC_A, 0); + + if (flags & PORTMUX_EBI_NWAIT) + portmux_select_peripheral(PORTMUX_PORT_E, 1 << 24, + PORTMUX_FUNC_A, PORTMUX_PULL_UP); +} + +#ifdef AT32AP700x_CHIP_HAS_MACB +void portmux_enable_macb0(unsigned long flags, unsigned long drive_strength) +{ + unsigned long portc_mask; + + portc_mask = (1 << 3) /* TXD0 */ + | (1 << 4) /* TXD1 */ + | (1 << 7) /* TXEN */ + | (1 << 8) /* TXCK */ + | (1 << 9) /* RXD0 */ + | (1 << 10) /* RXD1 */ + | (1 << 13) /* RXER */ + | (1 << 15) /* RXDV */ + | (1 << 16) /* MDC */ + | (1 << 17); /* MDIO */ + + if (flags & PORTMUX_MACB_MII) + portc_mask |= (1 << 0) /* COL */ + | (1 << 1) /* CRS */ + | (1 << 2) /* TXER */ + | (1 << 5) /* TXD2 */ + | (1 << 6) /* TXD3 */ + | (1 << 11) /* RXD2 */ + | (1 << 12) /* RXD3 */ + | (1 << 14); /* RXCK */ + + if (flags & PORTMUX_MACB_SPEED) + portc_mask |= (1 << 18);/* SPD */ + + /* REVISIT: Some pins are probably pure outputs */ + portmux_select_peripheral(PORTMUX_PORT_C, portc_mask, + PORTMUX_FUNC_A, PORTMUX_BUSKEEPER); +} + +void portmux_enable_macb1(unsigned long flags, unsigned long drive_strength) +{ + unsigned long portc_mask = 0; + unsigned long portd_mask; + + portd_mask = (1 << 13) /* TXD0 */ + | (1 << 14) /* TXD1 */ + | (1 << 11) /* TXEN */ + | (1 << 12) /* TXCK */ + | (1 << 10) /* RXD0 */ + | (1 << 6) /* RXD1 */ + | (1 << 5) /* RXER */ + | (1 << 4) /* RXDV */ + | (1 << 3) /* MDC */ + | (1 << 2); /* MDIO */ + + if (flags & PORTMUX_MACB_MII) + portc_mask = (1 << 19) /* COL */ + | (1 << 23) /* CRS */ + | (1 << 26) /* TXER */ + | (1 << 27) /* TXD2 */ + | (1 << 28) /* TXD3 */ + | (1 << 29) /* RXD2 */ + | (1 << 30) /* RXD3 */ + | (1 << 24); /* RXCK */ + + if (flags & PORTMUX_MACB_SPEED) + portd_mask |= (1 << 15);/* SPD */ + + /* REVISIT: Some pins are probably pure outputs */ + portmux_select_peripheral(PORTMUX_PORT_D, portc_mask, + PORTMUX_FUNC_B, PORTMUX_BUSKEEPER); + portmux_select_peripheral(PORTMUX_PORT_C, portc_mask, + PORTMUX_FUNC_B, PORTMUX_BUSKEEPER); +} +#endif + +#ifdef AT32AP700x_CHIP_HAS_MMCI +void portmux_enable_mmci(unsigned int slot, unsigned long flags, + unsigned long drive_strength) +{ + unsigned long mask; + unsigned long portmux_flags = PORTMUX_PULL_UP; + + /* First, the common CLK signal. It doesn't need a pull-up */ + portmux_select_peripheral(PORTMUX_PORT_A, 1 << 10, + PORTMUX_FUNC_A, 0); + + if (flags & PORTMUX_MMCI_EXT_PULLUP) + portmux_flags = 0; + + /* Then, the per-slot signals */ + switch (slot) { + case 0: + mask = (1 << 11) | (1 << 12); /* CMD and DATA0 */ + if (flags & PORTMUX_MMCI_4BIT) + /* DATA1..DATA3 */ + mask |= (1 << 13) | (1 << 14) | (1 << 15); + portmux_select_peripheral(PORTMUX_PORT_A, mask, + PORTMUX_FUNC_A, portmux_flags); + break; + case 1: + mask = (1 << 6) | (1 << 7); /* CMD and DATA0 */ + if (flags & PORTMUX_MMCI_4BIT) + /* DATA1..DATA3 */ + mask |= (1 << 8) | (1 << 9) | (1 << 10); + portmux_select_peripheral(PORTMUX_PORT_B, mask, + PORTMUX_FUNC_B, portmux_flags); + break; + } +} +#endif + +#ifdef AT32AP700x_CHIP_HAS_SPI +void portmux_enable_spi0(unsigned long cs_mask, unsigned long drive_strength) +{ + unsigned long pin_mask; + + /* MOSI and SCK */ + portmux_select_peripheral(PORTMUX_PORT_A, (1 << 1) | (1 << 2), + PORTMUX_FUNC_A, 0); + /* MISO may float */ + portmux_select_peripheral(PORTMUX_PORT_A, 1 << 0, + PORTMUX_FUNC_A, PORTMUX_BUSKEEPER); + + /* Set up NPCSx as GPIO outputs, initially high */ + pin_mask = (cs_mask & 7) << 3; + if (cs_mask & (1 << 3)) + pin_mask |= 1 << 20; + + portmux_select_gpio(PORTMUX_PORT_A, pin_mask, + PORTMUX_DIR_OUTPUT | PORTMUX_INIT_HIGH); +} + +void portmux_enable_spi1(unsigned long cs_mask, unsigned long drive_strength) +{ + /* MOSI and SCK */ + portmux_select_peripheral(PORTMUX_PORT_B, (1 << 1) | (1 << 5), + PORTMUX_FUNC_B, 0); + /* MISO may float */ + portmux_select_peripheral(PORTMUX_PORT_B, 1 << 0, + PORTMUX_FUNC_B, PORTMUX_BUSKEEPER); + + /* Set up NPCSx as GPIO outputs, initially high */ + portmux_select_gpio(PORTMUX_PORT_B, (cs_mask & 7) << 2, + PORTMUX_DIR_OUTPUT | PORTMUX_INIT_HIGH); + portmux_select_gpio(PORTMUX_PORT_A, (cs_mask & 8) << (27 - 3), + PORTMUX_DIR_OUTPUT | PORTMUX_INIT_HIGH); +} +#endif diff --git a/cpu/at32ap/pio.c b/cpu/at32ap/pio.c deleted file mode 100644 index f64004b659..0000000000 --- a/cpu/at32ap/pio.c +++ /dev/null @@ -1,116 +0,0 @@ -/* - * Copyright (C) 2006 Atmel Corporation - * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ -#include <common.h> - -#include <asm/io.h> -#include <asm/arch/gpio.h> -#include <asm/arch/memory-map.h> - -#include "pio2.h" - -void gpio_select_periph_A(unsigned int pin, int use_pullup) -{ - void *base = gpio_pin_to_addr(pin); - uint32_t mask = 1 << (pin & 0x1f); - - if (!base) - panic("Invalid GPIO pin %u\n", pin); - - pio2_writel(base, ASR, mask); - pio2_writel(base, PDR, mask); - if (use_pullup) - pio2_writel(base, PUER, mask); - else - pio2_writel(base, PUDR, mask); -} - -void gpio_select_periph_B(unsigned int pin, int use_pullup) -{ - void *base = gpio_pin_to_addr(pin); - uint32_t mask = 1 << (pin & 0x1f); - - if (!base) - panic("Invalid GPIO pin %u\n", pin); - - pio2_writel(base, BSR, mask); - pio2_writel(base, PDR, mask); - if (use_pullup) - pio2_writel(base, PUER, mask); - else - pio2_writel(base, PUDR, mask); -} - -void gpio_select_pio(unsigned int pin, unsigned long gpiof_flags) -{ - void *base = gpio_pin_to_addr(pin); - uint32_t mask = 1 << (pin & 0x1f); - - if (!base) - panic("Invalid GPIO pin %u\n", pin); - - if (gpiof_flags & GPIOF_OUTPUT) { - if (gpiof_flags & GPIOF_MULTIDRV) - pio2_writel(base, MDER, mask); - else - pio2_writel(base, MDDR, mask); - pio2_writel(base, PUDR, mask); - pio2_writel(base, OER, mask); - } else { - if (gpiof_flags & GPIOF_PULLUP) - pio2_writel(base, PUER, mask); - else - pio2_writel(base, PUDR, mask); - if (gpiof_flags & GPIOF_DEGLITCH) - pio2_writel(base, IFER, mask); - else - pio2_writel(base, IFDR, mask); - pio2_writel(base, ODR, mask); - } - - pio2_writel(base, PER, mask); -} - -void gpio_set_value(unsigned int pin, int value) -{ - void *base = gpio_pin_to_addr(pin); - uint32_t mask = 1 << (pin & 0x1f); - - if (!base) - panic("Invalid GPIO pin %u\n", pin); - - if (value) - pio2_writel(base, SODR, mask); - else - pio2_writel(base, CODR, mask); -} - -int gpio_get_value(unsigned int pin) -{ - void *base = gpio_pin_to_addr(pin); - int value; - - if (!base) - panic("Invalid GPIO pin %u\n", pin); - - value = pio2_readl(base, PDSR); - return (value >> (pin & 0x1f)) & 1; -} diff --git a/cpu/at32ap/portmux-pio.c b/cpu/at32ap/portmux-pio.c new file mode 100644 index 0000000000..a29f94e3ba --- /dev/null +++ b/cpu/at32ap/portmux-pio.c @@ -0,0 +1,92 @@ +/* + * Copyright (C) 2006, 2008 Atmel Corporation + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ +#include <common.h> + +#include <asm/io.h> +#include <asm/arch/memory-map.h> +#include <asm/arch/gpio.h> + +void portmux_select_peripheral(void *port, unsigned long pin_mask, + enum portmux_function func, unsigned long flags) +{ + if (flags & PORTMUX_PULL_UP) + pio_writel(port, PUER, pin_mask); + else + pio_writel(port, PUDR, pin_mask); + + switch (func) { + case PORTMUX_FUNC_A: + pio_writel(port, ASR, pin_mask); + break; + case PORTMUX_FUNC_B: + pio_writel(port, BSR, pin_mask); + break; + } + + pio_writel(port, PDR, pin_mask); +} + +void portmux_select_gpio(void *port, unsigned long pin_mask, + unsigned long flags) +{ + if (flags & PORTMUX_PULL_UP) + pio_writel(port, PUER, pin_mask); + else + pio_writel(port, PUDR, pin_mask); + + if (flags & PORTMUX_OPEN_DRAIN) + pio_writel(port, MDER, pin_mask); + else + pio_writel(port, MDDR, pin_mask); + + if (flags & PORTMUX_DIR_OUTPUT) { + if (flags & PORTMUX_INIT_HIGH) + pio_writel(port, SODR, pin_mask); + else + pio_writel(port, CODR, pin_mask); + pio_writel(port, OER, pin_mask); + } else { + pio_writel(port, ODR, pin_mask); + } + + pio_writel(port, PER, pin_mask); +} + +void pio_set_output_value(unsigned int pin, int value) +{ + void *port = pio_pin_to_port(pin); + + if (!port) + panic("Invalid GPIO pin %u\n", pin); + + __pio_set_output_value(port, pin & 0x1f, value); +} + +int pio_get_input_value(unsigned int pin) +{ + void *port = pio_pin_to_port(pin); + + if (!port) + panic("Invalid GPIO pin %u\n", pin); + + return __pio_get_input_value(port, pin & 0x1f); +} |
