diff options
Diffstat (limited to 'arch/arm/cpu/arm926ejs/at91')
| -rw-r--r-- | arch/arm/cpu/arm926ejs/at91/at91sam9260_devices.c | 2 | ||||
| -rw-r--r-- | arch/arm/cpu/arm926ejs/at91/at91sam9261_devices.c | 76 | ||||
| -rw-r--r-- | arch/arm/cpu/arm926ejs/at91/at91sam9263_devices.c | 38 | ||||
| -rw-r--r-- | arch/arm/cpu/arm926ejs/at91/at91sam9rl_devices.c | 74 | ||||
| -rw-r--r-- | arch/arm/cpu/arm926ejs/at91/lowlevel_init.S | 2 |
5 files changed, 99 insertions, 93 deletions
diff --git a/arch/arm/cpu/arm926ejs/at91/at91sam9260_devices.c b/arch/arm/cpu/arm926ejs/at91/at91sam9260_devices.c index 6bdc75c70..65b8d516f 100644 --- a/arch/arm/cpu/arm926ejs/at91/at91sam9260_devices.c +++ b/arch/arm/cpu/arm926ejs/at91/at91sam9260_devices.c @@ -138,7 +138,7 @@ void at91_spi1_hw_init(unsigned long cs_mask) at91_set_b_periph(AT91_PIO_PORTC, 4, 1); } if (cs_mask & (1 << 3)) { - at91_set_pio_output(AT91_PIO_PORTC, 3, 1); + at91_set_b_periph(AT91_PIO_PORTC, 3, 1); } if (cs_mask & (1 << 4)) { at91_set_pio_output(AT91_PIO_PORTB, 3, 1); diff --git a/arch/arm/cpu/arm926ejs/at91/at91sam9261_devices.c b/arch/arm/cpu/arm926ejs/at91/at91sam9261_devices.c index b4353ef5c..edc797214 100644 --- a/arch/arm/cpu/arm926ejs/at91/at91sam9261_devices.c +++ b/arch/arm/cpu/arm926ejs/at91/at91sam9261_devices.c @@ -23,77 +23,73 @@ */ #include <common.h> +#include <asm/io.h> #include <asm/arch/at91_common.h> #include <asm/arch/at91_pmc.h> #include <asm/arch/gpio.h> -#include <asm/arch/io.h> + +/* + * if CONFIG_AT91_GPIO_PULLUP ist set, keep pullups on on all + * peripheral pins. Good to have if hardware is soldered optionally + * or in case of SPI no slave is selected. Avoid lines to float + * needlessly. Use a short local PUP define. + * + * Due to errata "TXD floats when CTS is inactive" pullups are always + * on for TXD pins. + */ +#ifdef CONFIG_AT91_GPIO_PULLUP +# define PUP CONFIG_AT91_GPIO_PULLUP +#else +# define PUP 0 +#endif void at91_serial0_hw_init(void) { - at91_pmc_t *pmc = (at91_pmc_t *) AT91_PMC_BASE; + at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC; at91_set_a_periph(AT91_PIO_PORTC, 8, 1); /* TXD0 */ at91_set_a_periph(AT91_PIO_PORTC, 9, 0); /* RXD0 */ - writel(1 << AT91SAM9261_ID_US0, &pmc->pcer); + writel(1 << ATMEL_ID_USART0, &pmc->pcer); } void at91_serial1_hw_init(void) { - at91_pmc_t *pmc = (at91_pmc_t *) AT91_PMC_BASE; + at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC; at91_set_a_periph(AT91_PIO_PORTC, 12, 1); /* TXD1 */ at91_set_a_periph(AT91_PIO_PORTC, 13, 0); /* RXD1 */ - writel(1 << AT91SAM9261_ID_US1, &pmc->pcer); + writel(1 << ATMEL_ID_USART1, &pmc->pcer); } void at91_serial2_hw_init(void) { - at91_pmc_t *pmc = (at91_pmc_t *) AT91_PMC_BASE; + at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC; at91_set_a_periph(AT91_PIO_PORTC, 14, 1); /* TXD2 */ at91_set_a_periph(AT91_PIO_PORTC, 15, 0); /* RXD2 */ - writel(1 << AT91SAM9261_ID_US2, &pmc->pcer); + writel(1 << ATMEL_ID_USART2, &pmc->pcer); } -void at91_serial3_hw_init(void) +void at91_seriald_hw_init(void) { - at91_pmc_t *pmc = (at91_pmc_t *) AT91_PMC_BASE; + at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC; at91_set_a_periph(AT91_PIO_PORTA, 9, 0); /* DRXD */ at91_set_a_periph(AT91_PIO_PORTA, 10, 1); /* DTXD */ - writel(1 << AT91_ID_SYS, &pmc->pcer); -} - -void at91_serial_hw_init(void) -{ -#ifdef CONFIG_USART0 - at91_serial0_hw_init(); -#endif - -#ifdef CONFIG_USART1 - at91_serial1_hw_init(); -#endif - -#ifdef CONFIG_USART2 - at91_serial2_hw_init(); -#endif - -#ifdef CONFIG_USART3 /* DBGU */ - at91_serial3_hw_init(); -#endif + writel(1 << ATMEL_ID_SYS, &pmc->pcer); } -#ifdef CONFIG_HAS_DATAFLASH +#if defined(CONFIG_HAS_DATAFLASH) || defined(CONFIG_ATMEL_SPI) void at91_spi0_hw_init(unsigned long cs_mask) { - at91_pmc_t *pmc = (at91_pmc_t *) AT91_PMC_BASE; + at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC; - at91_set_a_periph(AT91_PIO_PORTA, 0, 0); /* SPI0_MISO */ - at91_set_a_periph(AT91_PIO_PORTA, 1, 0); /* SPI0_MOSI */ - at91_set_a_periph(AT91_PIO_PORTA, 2, 0); /* SPI0_SPCK */ + at91_set_a_periph(AT91_PIO_PORTA, 0, PUP); /* SPI0_MISO */ + at91_set_a_periph(AT91_PIO_PORTA, 1, PUP); /* SPI0_MOSI */ + at91_set_a_periph(AT91_PIO_PORTA, 2, PUP); /* SPI0_SPCK */ /* Enable clock */ - writel(1 << AT91SAM9261_ID_SPI0, &pmc->pcer); + writel(1 << ATMEL_ID_SPI0, &pmc->pcer); if (cs_mask & (1 << 0)) { at91_set_a_periph(AT91_PIO_PORTA, 3, 1); @@ -123,14 +119,14 @@ void at91_spi0_hw_init(unsigned long cs_mask) void at91_spi1_hw_init(unsigned long cs_mask) { - at91_pmc_t *pmc = (at91_pmc_t *) AT91_PMC_BASE; + at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC; - at91_set_a_periph(AT91_PIO_PORTB, 30, 0); /* SPI1_MISO */ - at91_set_a_periph(AT91_PIO_PORTB, 31, 0); /* SPI1_MOSI */ - at91_set_a_periph(AT91_PIO_PORTB, 29, 0); /* SPI1_SPCK */ + at91_set_a_periph(AT91_PIO_PORTB, 30, PUP); /* SPI1_MISO */ + at91_set_a_periph(AT91_PIO_PORTB, 31, PUP); /* SPI1_MOSI */ + at91_set_a_periph(AT91_PIO_PORTB, 29, PUP); /* SPI1_SPCK */ /* Enable clock */ - writel(1 << AT91SAM9261_ID_SPI1, &pmc->pcer); + writel(1 << ATMEL_ID_SPI1, &pmc->pcer); if (cs_mask & (1 << 0)) { at91_set_a_periph(AT91_PIO_PORTB, 28, 1); diff --git a/arch/arm/cpu/arm926ejs/at91/at91sam9263_devices.c b/arch/arm/cpu/arm926ejs/at91/at91sam9263_devices.c index 15e880acc..6eb0f305b 100644 --- a/arch/arm/cpu/arm926ejs/at91/at91sam9263_devices.c +++ b/arch/arm/cpu/arm926ejs/at91/at91sam9263_devices.c @@ -28,17 +28,31 @@ #include <common.h> #include <asm/io.h> -#include <asm/arch/hardware.h> #include <asm/arch/at91_common.h> #include <asm/arch/at91_pmc.h> -#include <asm/arch/at91_pio.h> +#include <asm/arch/gpio.h> + +/* + * if CONFIG_AT91_GPIO_PULLUP ist set, keep pullups on on all + * peripheral pins. Good to have if hardware is soldered optionally + * or in case of SPI no slave is selected. Avoid lines to float + * needlessly. Use a short local PUP define. + * + * Due to errata "TXD floats when CTS is inactive" pullups are always + * on for TXD pins. + */ +#ifdef CONFIG_AT91_GPIO_PULLUP +# define PUP CONFIG_AT91_GPIO_PULLUP +#else +# define PUP 0 +#endif void at91_serial0_hw_init(void) { at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC; at91_set_a_periph(AT91_PIO_PORTA, 26, 1); /* TXD0 */ - at91_set_a_periph(AT91_PIO_PORTA, 27, 0); /* RXD0 */ + at91_set_a_periph(AT91_PIO_PORTA, 27, PUP); /* RXD0 */ writel(1 << ATMEL_ID_USART0, &pmc->pcer); } @@ -47,7 +61,7 @@ void at91_serial1_hw_init(void) at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC; at91_set_a_periph(AT91_PIO_PORTD, 0, 1); /* TXD1 */ - at91_set_a_periph(AT91_PIO_PORTD, 1, 0); /* RXD1 */ + at91_set_a_periph(AT91_PIO_PORTD, 1, PUP); /* RXD1 */ writel(1 << ATMEL_ID_USART1, &pmc->pcer); } @@ -56,7 +70,7 @@ void at91_serial2_hw_init(void) at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC; at91_set_a_periph(AT91_PIO_PORTD, 2, 1); /* TXD2 */ - at91_set_a_periph(AT91_PIO_PORTD, 3, 0); /* RXD2 */ + at91_set_a_periph(AT91_PIO_PORTD, 3, PUP); /* RXD2 */ writel(1 << ATMEL_ID_USART2, &pmc->pcer); } @@ -64,7 +78,7 @@ void at91_seriald_hw_init(void) { at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC; - at91_set_a_periph(AT91_PIO_PORTC, 30, 0); /* DRXD */ + at91_set_a_periph(AT91_PIO_PORTC, 30, PUP); /* DRXD */ at91_set_a_periph(AT91_PIO_PORTC, 31, 1); /* DTXD */ writel(1 << ATMEL_ID_SYS, &pmc->pcer); } @@ -74,9 +88,9 @@ void at91_spi0_hw_init(unsigned long cs_mask) { at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC; - at91_set_b_periph(AT91_PIO_PORTA, 0, 0); /* SPI0_MISO */ - at91_set_b_periph(AT91_PIO_PORTA, 1, 0); /* SPI0_MOSI */ - at91_set_b_periph(AT91_PIO_PORTA, 2, 0); /* SPI0_SPCK */ + at91_set_b_periph(AT91_PIO_PORTA, 0, PUP); /* SPI0_MISO */ + at91_set_b_periph(AT91_PIO_PORTA, 1, PUP); /* SPI0_MOSI */ + at91_set_b_periph(AT91_PIO_PORTA, 2, PUP); /* SPI0_SPCK */ /* Enable clock */ writel(1 << ATMEL_ID_SPI0, &pmc->pcer); @@ -111,9 +125,9 @@ void at91_spi1_hw_init(unsigned long cs_mask) { at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC; - at91_set_a_periph(AT91_PIO_PORTB, 12, 0); /* SPI1_MISO */ - at91_set_a_periph(AT91_PIO_PORTB, 13, 0); /* SPI1_MOSI */ - at91_set_a_periph(AT91_PIO_PORTB, 14, 0); /* SPI1_SPCK */ + at91_set_a_periph(AT91_PIO_PORTB, 12, PUP); /* SPI1_MISO */ + at91_set_a_periph(AT91_PIO_PORTB, 13, PUP); /* SPI1_MOSI */ + at91_set_a_periph(AT91_PIO_PORTB, 14, PUP); /* SPI1_SPCK */ /* Enable clock */ writel(1 << ATMEL_ID_SPI1, &pmc->pcer); diff --git a/arch/arm/cpu/arm926ejs/at91/at91sam9rl_devices.c b/arch/arm/cpu/arm926ejs/at91/at91sam9rl_devices.c index 4f570f4fb..b0a16874d 100644 --- a/arch/arm/cpu/arm926ejs/at91/at91sam9rl_devices.c +++ b/arch/arm/cpu/arm926ejs/at91/at91sam9rl_devices.c @@ -23,77 +23,73 @@ */ #include <common.h> +#include <asm/io.h> #include <asm/arch/at91_common.h> #include <asm/arch/at91_pmc.h> #include <asm/arch/gpio.h> -#include <asm/arch/io.h> + +/* + * if CONFIG_AT91_GPIO_PULLUP ist set, keep pullups on on all + * peripheral pins. Good to have if hardware is soldered optionally + * or in case of SPI no slave is selected. Avoid lines to float + * needlessly. Use a short local PUP define. + * + * Due to errata "TXD floats when CTS is inactive" pullups are always + * on for TXD pins. + */ +#ifdef CONFIG_AT91_GPIO_PULLUP +# define PUP CONFIG_AT91_GPIO_PULLUP +#else +# define PUP 0 +#endif void at91_serial0_hw_init(void) { - at91_pmc_t *pmc = (at91_pmc_t *) AT91_PMC_BASE; + at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC; at91_set_a_periph(AT91_PIO_PORTA, 6, 1); /* TXD0 */ - at91_set_a_periph(AT91_PIO_PORTA, 7, 0); /* RXD0 */ - writel(1 << AT91SAM9RL_ID_US0, &pmc->pcer); + at91_set_a_periph(AT91_PIO_PORTA, 7, PUP); /* RXD0 */ + writel(1 << ATMEL_ID_USART0, &pmc->pcer); } void at91_serial1_hw_init(void) { - at91_pmc_t *pmc = (at91_pmc_t *) AT91_PMC_BASE; + at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC; at91_set_a_periph(AT91_PIO_PORTA, 11, 1); /* TXD1 */ - at91_set_a_periph(AT91_PIO_PORTA, 12, 0); /* RXD1 */ - writel(1 << AT91SAM9RL_ID_US1, &pmc->pcer); + at91_set_a_periph(AT91_PIO_PORTA, 12, PUP); /* RXD1 */ + writel(1 << ATMEL_ID_USART1, &pmc->pcer); } void at91_serial2_hw_init(void) { - at91_pmc_t *pmc = (at91_pmc_t *) AT91_PMC_BASE; + at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC; at91_set_a_periph(AT91_PIO_PORTA, 13, 1); /* TXD2 */ - at91_set_a_periph(AT91_PIO_PORTA, 14, 0); /* RXD2 */ - writel(1 << AT91SAM9RL_ID_US2, &pmc->pcer); + at91_set_a_periph(AT91_PIO_PORTA, 14, PUP); /* RXD2 */ + writel(1 << ATMEL_ID_USART2, &pmc->pcer); } -void at91_serial3_hw_init(void) +void at91_seriald_hw_init(void) { - at91_pmc_t *pmc = (at91_pmc_t *) AT91_PMC_BASE; + at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC; - at91_set_a_periph(AT91_PIO_PORTA, 21, 0); /* DRXD */ + at91_set_a_periph(AT91_PIO_PORTA, 21, PUP); /* DRXD */ at91_set_a_periph(AT91_PIO_PORTA, 22, 1); /* DTXD */ - writel(1 << AT91_ID_SYS, &pmc->pcer); -} - -void at91_serial_hw_init(void) -{ -#ifdef CONFIG_USART0 - at91_serial0_hw_init(); -#endif - -#ifdef CONFIG_USART1 - at91_serial1_hw_init(); -#endif - -#ifdef CONFIG_USART2 - at91_serial2_hw_init(); -#endif - -#ifdef CONFIG_USART3 /* DBGU */ - at91_serial3_hw_init(); -#endif + writel(1 << ATMEL_ID_SYS, &pmc->pcer); } -#ifdef CONFIG_HAS_DATAFLASH +#if defined(CONFIG_HAS_DATAFLASH) || defined(CONFIG_ATMEL_SPI) void at91_spi0_hw_init(unsigned long cs_mask) { - at91_pmc_t *pmc = (at91_pmc_t *) AT91_PMC_BASE; + at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC; - at91_set_a_periph(AT91_PIO_PORTA, 25, 0); /* SPI0_MISO */ - at91_set_a_periph(AT91_PIO_PORTA, 26, 0); /* SPI0_MOSI */ - at91_set_a_periph(AT91_PIO_PORTA, 27, 0); /* SPI0_SPCK */ + at91_set_a_periph(AT91_PIO_PORTA, 25, PUP); /* SPI0_MISO */ + at91_set_a_periph(AT91_PIO_PORTA, 26, PUP); /* SPI0_MOSI */ + at91_set_a_periph(AT91_PIO_PORTA, 27, PUP); /* SPI0_SPCK */ /* Enable clock */ - writel(1 << AT91SAM9RL_ID_SPI, &pmc->pcer); + writel(1 << ATMEL_ID_SPI, &pmc->pcer); if (cs_mask & (1 << 0)) { at91_set_a_periph(AT91_PIO_PORTA, 28, 1); diff --git a/arch/arm/cpu/arm926ejs/at91/lowlevel_init.S b/arch/arm/cpu/arm926ejs/at91/lowlevel_init.S index 17ff0ddc2..d10219527 100644 --- a/arch/arm/cpu/arm926ejs/at91/lowlevel_init.S +++ b/arch/arm/cpu/arm926ejs/at91/lowlevel_init.S @@ -35,7 +35,7 @@ #include <asm/arch/at91sam9_sdramc.h> #include <asm/arch/at91sam9_smc.h> #include <asm/arch/at91_rstc.h> -#ifdef CONFIG_AT91_LEGACY +#ifdef CONFIG_ATMEL_LEGACY #include <asm/arch/at91sam9_matrix.h> #endif #ifndef CONFIG_SYS_MATRIX_EBICSA_VAL |