diff options
Diffstat (limited to 'cpu')
| -rw-r--r-- | cpu/arm926ejs/at91/Makefile | 2 | ||||
| -rw-r--r-- | cpu/arm926ejs/at91/at91sam9m10g45_devices.c | 175 | ||||
| -rw-r--r-- | cpu/arm926ejs/at91/clock.c | 12 |
3 files changed, 187 insertions, 2 deletions
diff --git a/cpu/arm926ejs/at91/Makefile b/cpu/arm926ejs/at91/Makefile index 3da89f4..69051c1 100644 --- a/cpu/arm926ejs/at91/Makefile +++ b/cpu/arm926ejs/at91/Makefile @@ -31,6 +31,8 @@ COBJS-$(CONFIG_AT91SAM9G20) += at91sam9260_devices.o COBJS-$(CONFIG_AT91SAM9261) += at91sam9261_devices.o COBJS-$(CONFIG_AT91SAM9263) += at91sam9263_devices.o COBJS-$(CONFIG_AT91SAM9RL) += at91sam9rl_devices.o +COBJS-$(CONFIG_AT91SAM9M10G45) += at91sam9m10g45_devices.o +COBJS-$(CONFIG_AT91SAM9G45) += at91sam9m10g45_devices.o COBJS-$(CONFIG_AT91_LED) += led.o COBJS-y += clock.o COBJS-y += cpu.o diff --git a/cpu/arm926ejs/at91/at91sam9m10g45_devices.c b/cpu/arm926ejs/at91/at91sam9m10g45_devices.c new file mode 100644 index 0000000..98d90f2 --- /dev/null +++ b/cpu/arm926ejs/at91/at91sam9m10g45_devices.c @@ -0,0 +1,175 @@ +/* + * (C) Copyright 2007-2008 + * Stelian Pop <stelian.pop@leadtechdesign.com> + * Lead Tech Design <www.leadtechdesign.com> + * + * 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/arch/at91_common.h> +#include <asm/arch/at91_pmc.h> +#include <asm/arch/gpio.h> +#include <asm/arch/io.h> + +void at91_serial0_hw_init(void) +{ + at91_set_A_periph(AT91_PIN_PB19, 1); /* TXD0 */ + at91_set_A_periph(AT91_PIN_PB18, 0); /* RXD0 */ + at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9G45_ID_US0); +} + +void at91_serial1_hw_init(void) +{ + at91_set_A_periph(AT91_PIN_PB4, 1); /* TXD1 */ + at91_set_A_periph(AT91_PIN_PB5, 0); /* RXD1 */ + at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9G45_ID_US1); +} + +void at91_serial2_hw_init(void) +{ + at91_set_A_periph(AT91_PIN_PD6, 1); /* TXD2 */ + at91_set_A_periph(AT91_PIN_PD7, 0); /* RXD2 */ + at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9G45_ID_US2); +} + +void at91_serial3_hw_init(void) +{ + at91_set_A_periph(AT91_PIN_PB12, 0); /* DRXD */ + at91_set_A_periph(AT91_PIN_PB13, 1); /* DTXD */ + at91_sys_write(AT91_PMC_PCER, 1 << AT91_ID_SYS);; +} + +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 +} + +#ifdef CONFIG_ATMEL_SPI +void at91_spi0_hw_init(unsigned long cs_mask) +{ + at91_set_A_periph(AT91_PIN_PB0, 0); /* SPI0_MISO */ + at91_set_A_periph(AT91_PIN_PB1, 0); /* SPI0_MOSI */ + at91_set_A_periph(AT91_PIN_PB2, 0); /* SPI0_SPCK */ + + /* Enable clock */ + at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9G45_ID_SPI0); + + if (cs_mask & (1 << 0)) { + at91_set_A_periph(AT91_PIN_PB3, 0); + } + if (cs_mask & (1 << 1)) { + at91_set_B_periph(AT91_PIN_PB18, 0); + } + if (cs_mask & (1 << 2)) { + at91_set_B_periph(AT91_PIN_PB19, 0); + } + if (cs_mask & (1 << 3)) { + at91_set_B_periph(AT91_PIN_PD27, 0); + } + if (cs_mask & (1 << 4)) { + at91_set_gpio_output(AT91_PIN_PB3, 0); + } + if (cs_mask & (1 << 5)) { + at91_set_gpio_output(AT91_PIN_PB18, 0); + } + if (cs_mask & (1 << 6)) { + at91_set_gpio_output(AT91_PIN_PB19, 0); + } + if (cs_mask & (1 << 7)) { + at91_set_gpio_output(AT91_PIN_PD27, 0); + } +} + +void at91_spi1_hw_init(unsigned long cs_mask) +{ + at91_set_A_periph(AT91_PIN_PB14, 0); /* SPI1_MISO */ + at91_set_A_periph(AT91_PIN_PB15, 0); /* SPI1_MOSI */ + at91_set_A_periph(AT91_PIN_PB16, 0); /* SPI1_SPCK */ + + /* Enable clock */ + at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9G45_ID_SPI1); + + if (cs_mask & (1 << 0)) { + at91_set_A_periph(AT91_PIN_PB17, 0); + } + if (cs_mask & (1 << 1)) { + at91_set_B_periph(AT91_PIN_PD28, 0); + } + if (cs_mask & (1 << 2)) { + at91_set_A_periph(AT91_PIN_PD18, 0); + } + if (cs_mask & (1 << 3)) { + at91_set_A_periph(AT91_PIN_PD19, 0); + } + if (cs_mask & (1 << 4)) { + at91_set_gpio_output(AT91_PIN_PB17, 0); + } + if (cs_mask & (1 << 5)) { + at91_set_gpio_output(AT91_PIN_PD28, 0); + } + if (cs_mask & (1 << 6)) { + at91_set_gpio_output(AT91_PIN_PD18, 0); + } + if (cs_mask & (1 << 7)) { + at91_set_gpio_output(AT91_PIN_PD19, 0); + } + +} +#endif + +#ifdef CONFIG_MACB +void at91_macb_hw_init(void) +{ + at91_set_A_periph(AT91_PIN_PA17, 0); /* ETXCK_EREFCK */ + at91_set_A_periph(AT91_PIN_PA15, 0); /* ERXDV */ + at91_set_A_periph(AT91_PIN_PA12, 0); /* ERX0 */ + at91_set_A_periph(AT91_PIN_PA13, 0); /* ERX1 */ + at91_set_A_periph(AT91_PIN_PA16, 0); /* ERXER */ + at91_set_A_periph(AT91_PIN_PA14, 0); /* ETXEN */ + at91_set_A_periph(AT91_PIN_PA10, 0); /* ETX0 */ + at91_set_A_periph(AT91_PIN_PA11, 0); /* ETX1 */ + at91_set_A_periph(AT91_PIN_PA19, 0); /* EMDIO */ + at91_set_A_periph(AT91_PIN_PA18, 0); /* EMDC */ +#ifndef CONFIG_RMII + at91_set_B_periph(AT91_PIN_PA29, 0); /* ECRS */ + at91_set_B_periph(AT91_PIN_PA30, 0); /* ECOL */ + at91_set_B_periph(AT91_PIN_PA8, 0); /* ERX2 */ + at91_set_B_periph(AT91_PIN_PA9, 0); /* ERX3 */ + at91_set_B_periph(AT91_PIN_PA28, 0); /* ERXCK */ + at91_set_B_periph(AT91_PIN_PA6, 0); /* ETX2 */ + at91_set_B_periph(AT91_PIN_PA7, 0); /* ETX3 */ + at91_set_B_periph(AT91_PIN_PA27, 0); /* ETXER */ +#endif +} +#endif diff --git a/cpu/arm926ejs/at91/clock.c b/cpu/arm926ejs/at91/clock.c index 9f03468..574f488 100644 --- a/cpu/arm926ejs/at91/clock.c +++ b/cpu/arm926ejs/at91/clock.c @@ -183,15 +183,23 @@ int at91_clock_init(unsigned long main_clock) * For now, assume this parentage won't change. */ mckr = at91_sys_read(AT91_PMC_MCKR); +#if defined(CONFIG_AT91SAM9G45) || defined(CONFIG_AT91SAM9M10G45) + /* plla divisor by 2 */ + plla_rate_hz /= (1 << ((mckr & 1 << 12) >> 12)); +#endif freq = mck_rate_hz = at91_css_to_rate(mckr & AT91_PMC_CSS); + freq /= (1 << ((mckr & AT91_PMC_PRES) >> 2)); /* prescale */ #if defined(CONFIG_AT91RM9200) mck_rate_hz = freq / (1 + ((mckr & AT91_PMC_MDIV) >> 8)); /* mdiv */ #elif defined(CONFIG_AT91SAM9G20) mck_rate_hz = (mckr & AT91_PMC_MDIV) ? - freq / ((mckr & AT91_PMC_MDIV) >> 7) : freq; /* mdiv ; (x >> 7) = ((x >> 8) * 2) */ + freq / ((mckr & AT91_PMC_MDIV) >> 7) : freq; /* mdiv ; (x >> 7) = ((x >> 8) * 2) */ if (mckr & AT91_PMC_PDIV) - freq /= 2; /* processor clock division */ + freq /= 2; /* processor clock division */ +#elif defined(CONFIG_AT91SAM9G45) || defined(CONFIG_AT91SAM9M10G45) + mck_rate_hz = (mckr & AT91_PMC_MDIV) == AT91SAM9_PMC_MDIV_3 ? + freq / 3 : freq / (1 << ((mckr & AT91_PMC_MDIV) >> 8)); /* mdiv */ #else mck_rate_hz = freq / (1 << ((mckr & AT91_PMC_MDIV) >> 8)); /* mdiv */ #endif |