diff options
Diffstat (limited to 'board/atmel/at91sam9x5ek/at91sam9x5ek.c')
| -rw-r--r-- | board/atmel/at91sam9x5ek/at91sam9x5ek.c | 295 | 
1 files changed, 295 insertions, 0 deletions
| diff --git a/board/atmel/at91sam9x5ek/at91sam9x5ek.c b/board/atmel/at91sam9x5ek/at91sam9x5ek.c new file mode 100644 index 000000000..ae408bc9d --- /dev/null +++ b/board/atmel/at91sam9x5ek/at91sam9x5ek.c @@ -0,0 +1,295 @@ +/* + * Copyright (C) 2012 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/at91sam9x5_matrix.h> +#include <asm/arch/at91sam9_smc.h> +#include <asm/arch/at91_common.h> +#include <asm/arch/at91_pmc.h> +#include <asm/arch/at91_rstc.h> +#include <asm/arch/gpio.h> +#include <asm/arch/clk.h> +#include <lcd.h> +#include <atmel_hlcdc.h> +#ifdef CONFIG_MACB +#include <net.h> +#endif +#include <netdev.h> +#ifdef CONFIG_LCD_INFO +#include <nand.h> +#include <version.h> +#endif +#ifdef CONFIG_ATMEL_SPI +#include <spi.h> +#endif + +DECLARE_GLOBAL_DATA_PTR; + +/* ------------------------------------------------------------------------- */ +/* + * Miscelaneous platform dependent initialisations + */ +#ifdef CONFIG_CMD_NAND +static void at91sam9x5ek_nand_hw_init(void) +{ +	struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC; +	struct at91_matrix *matrix = (struct at91_matrix *)ATMEL_BASE_MATRIX; +	struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC; +	unsigned long csa; + +	/* Enable CS3 */ +	csa = readl(&matrix->ebicsa); +	csa |= AT91_MATRIX_EBI_CS3A_SMC_SMARTMEDIA; +	/* NAND flash on D16 */ +	csa |= AT91_MATRIX_NFD0_ON_D16; +	writel(csa, &matrix->ebicsa); + +	/* Configure SMC CS3 for NAND/SmartMedia */ +	writel(AT91_SMC_SETUP_NWE(1) | AT91_SMC_SETUP_NCS_WR(0) | +		AT91_SMC_SETUP_NRD(1) | AT91_SMC_SETUP_NCS_RD(0), +		&smc->cs[3].setup); +	writel(AT91_SMC_PULSE_NWE(3) | AT91_SMC_PULSE_NCS_WR(5) | +		AT91_SMC_PULSE_NRD(4) | AT91_SMC_PULSE_NCS_RD(6), +		&smc->cs[3].pulse); +	writel(AT91_SMC_CYCLE_NWE(5) | AT91_SMC_CYCLE_NRD(6), +		&smc->cs[3].cycle); +	writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE | +		AT91_SMC_MODE_EXNW_DISABLE | +#ifdef CONFIG_SYS_NAND_DBW_16 +		AT91_SMC_MODE_DBW_16 | +#else /* CONFIG_SYS_NAND_DBW_8 */ +		AT91_SMC_MODE_DBW_8 | +#endif +		AT91_SMC_MODE_TDF_CYCLE(1), +		&smc->cs[3].mode); + +	writel(1 << ATMEL_ID_PIOCD, &pmc->pcer); + +	/* Configure RDY/BSY */ +	at91_set_gpio_input(CONFIG_SYS_NAND_READY_PIN, 1); +	/* Enable NandFlash */ +	at91_set_gpio_output(CONFIG_SYS_NAND_ENABLE_PIN, 1); + +	at91_set_a_periph(AT91_PIO_PORTD, 0, 1);	/* NAND OE */ +	at91_set_a_periph(AT91_PIO_PORTD, 1, 1);	/* NAND WE */ +	at91_set_a_periph(AT91_PIO_PORTD, 2, 1);	/* NAND ALE */ +	at91_set_a_periph(AT91_PIO_PORTD, 3, 1);	/* NAND CLE */ +	at91_set_a_periph(AT91_PIO_PORTD, 6, 1); +	at91_set_a_periph(AT91_PIO_PORTD, 7, 1); +	at91_set_a_periph(AT91_PIO_PORTD, 8, 1); +	at91_set_a_periph(AT91_PIO_PORTD, 9, 1); +	at91_set_a_periph(AT91_PIO_PORTD, 10, 1); +	at91_set_a_periph(AT91_PIO_PORTD, 11, 1); +	at91_set_a_periph(AT91_PIO_PORTD, 12, 1); +	at91_set_a_periph(AT91_PIO_PORTD, 13, 1); +} +#endif + +int board_eth_init(bd_t *bis) +{ +	int rc = 0; + +#ifdef CONFIG_MACB +	if (has_emac0()) +		rc = macb_eth_initialize(0, +			(void *)ATMEL_BASE_EMAC0, 0x00); +	if (has_emac1()) +		rc = macb_eth_initialize(1, +			(void *)ATMEL_BASE_EMAC1, 0x00); +#endif +	return rc; +} + +#ifdef CONFIG_LCD +vidinfo_t panel_info = { +	.vl_col	= 800, +	.vl_row = 480, +	.vl_clk = 24000000, +	.vl_sync = LCDC_LCDCFG5_HSPOL | LCDC_LCDCFG5_VSPOL, +	.vl_bpix = LCD_BPP, +	.vl_tft = 1, +	.vl_clk_pol = 1, +	.vl_hsync_len = 128, +	.vl_left_margin = 64, +	.vl_right_margin = 64, +	.vl_vsync_len = 2, +	.vl_upper_margin = 22, +	.vl_lower_margin = 21, +	.mmio = ATMEL_BASE_LCDC, +}; + +void lcd_enable(void) +{ +	if (has_lcdc()) +		at91_set_a_periph(AT91_PIO_PORTC, 29, 1);	/* power up */ +} + +void lcd_disable(void) +{ +	if (has_lcdc()) +		at91_set_a_periph(AT91_PIO_PORTC, 29, 0);	/* power down */ +} + +static void at91sam9x5ek_lcd_hw_init(void) +{ +	struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC; + +	if (has_lcdc()) { +		at91_set_a_periph(AT91_PIO_PORTC, 26, 0);	/* LCDPWM */ +		at91_set_a_periph(AT91_PIO_PORTC, 27, 0);	/* LCDVSYNC */ +		at91_set_a_periph(AT91_PIO_PORTC, 28, 0);	/* LCDHSYNC */ +		at91_set_a_periph(AT91_PIO_PORTC, 24, 0);	/* LCDDISP */ +		at91_set_a_periph(AT91_PIO_PORTC, 29, 0);	/* LCDDEN */ +		at91_set_a_periph(AT91_PIO_PORTC, 30, 0);	/* LCDPCK */ + +		at91_set_a_periph(AT91_PIO_PORTC, 0, 0);	/* LCDD0 */ +		at91_set_a_periph(AT91_PIO_PORTC, 1, 0);	/* LCDD1 */ +		at91_set_a_periph(AT91_PIO_PORTC, 2, 0);	/* LCDD2 */ +		at91_set_a_periph(AT91_PIO_PORTC, 3, 0);	/* LCDD3 */ +		at91_set_a_periph(AT91_PIO_PORTC, 4, 0);	/* LCDD4 */ +		at91_set_a_periph(AT91_PIO_PORTC, 5, 0);	/* LCDD5 */ +		at91_set_a_periph(AT91_PIO_PORTC, 6, 0);	/* LCDD6 */ +		at91_set_a_periph(AT91_PIO_PORTC, 7, 0);	/* LCDD7 */ +		at91_set_a_periph(AT91_PIO_PORTC, 8, 0);	/* LCDD8 */ +		at91_set_a_periph(AT91_PIO_PORTC, 9, 0);	/* LCDD9 */ +		at91_set_a_periph(AT91_PIO_PORTC, 10, 0);	/* LCDD10 */ +		at91_set_a_periph(AT91_PIO_PORTC, 11, 0);	/* LCDD11 */ +		at91_set_a_periph(AT91_PIO_PORTC, 12, 0);	/* LCDD12 */ +		at91_set_a_periph(AT91_PIO_PORTC, 13, 0);	/* LCDD13 */ +		at91_set_a_periph(AT91_PIO_PORTC, 14, 0);	/* LCDD14 */ +		at91_set_a_periph(AT91_PIO_PORTC, 15, 0);	/* LCDD15 */ +		at91_set_a_periph(AT91_PIO_PORTC, 16, 0);	/* LCDD16 */ +		at91_set_a_periph(AT91_PIO_PORTC, 17, 0);	/* LCDD17 */ +		at91_set_a_periph(AT91_PIO_PORTC, 18, 0);	/* LCDD18 */ +		at91_set_a_periph(AT91_PIO_PORTC, 19, 0);	/* LCDD19 */ +		at91_set_a_periph(AT91_PIO_PORTC, 20, 0);	/* LCDD20 */ +		at91_set_a_periph(AT91_PIO_PORTC, 21, 0);	/* LCDD21 */ +		at91_set_a_periph(AT91_PIO_PORTC, 22, 0);	/* LCDD22 */ +		at91_set_a_periph(AT91_PIO_PORTC, 23, 0);	/* LCDD23 */ + +		writel(1 << ATMEL_ID_LCDC, &pmc->pcer); +	} +} + +#ifdef CONFIG_LCD_INFO +void lcd_show_board_info(void) +{ +	ulong dram_size, nand_size; +	int i; +	char temp[32]; + +	if (has_lcdc()) { +		lcd_printf("%s\n", U_BOOT_VERSION); +		lcd_printf("(C) 2012 ATMEL Corp\n"); +		lcd_printf("at91support@atmel.com\n"); +		lcd_printf("%s CPU at %s MHz\n", +			get_cpu_name(), +			strmhz(temp, get_cpu_clk_rate())); + +		dram_size = 0; +		for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) +			dram_size += gd->bd->bi_dram[i].size; +		nand_size = 0; +		for (i = 0; i < CONFIG_SYS_MAX_NAND_DEVICE; i++) +			nand_size += nand_info[i].size; +		lcd_printf("  %ld MB SDRAM, %ld MB NAND\n", +			dram_size >> 20, +			nand_size >> 20); +	} +} +#endif /* CONFIG_LCD_INFO */ +#endif /* CONFIG_LCD */ + +/* SPI chip select control */ +#ifdef CONFIG_ATMEL_SPI +int spi_cs_is_valid(unsigned int bus, unsigned int cs) +{ +	return bus == 0 && cs < 2; +} + +void spi_cs_activate(struct spi_slave *slave) +{ +	switch (slave->cs) { +	case 1: +		at91_set_pio_output(AT91_PIO_PORTA, 7, 0); +		break; +	case 0: +	default: +		at91_set_pio_output(AT91_PIO_PORTA, 14, 0); +		break; +	} +} + +void spi_cs_deactivate(struct spi_slave *slave) +{ +	switch (slave->cs) { +	case 1: +		at91_set_pio_output(AT91_PIO_PORTA, 7, 1); +		break; +	case 0: +	default: +		at91_set_pio_output(AT91_PIO_PORTA, 14, 1); +		break; +	} +} +#endif /* CONFIG_ATMEL_SPI */ + +int board_early_init_f(void) +{ +	at91_seriald_hw_init(); +	return 0; +} + +int board_init(void) +{ +	/* arch number of AT91SAM9X5EK-Board */ +	gd->bd->bi_arch_number = MACH_TYPE_AT91SAM9X5EK; + +	/* adress of boot parameters */ +	gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100; + +#ifdef CONFIG_CMD_NAND +	at91sam9x5ek_nand_hw_init(); +#endif + +#ifdef CONFIG_ATMEL_SPI +	at91_spi0_hw_init(1 << 0); +	at91_spi0_hw_init(1 << 4); +#endif + +#ifdef CONFIG_MACB +	at91_macb_hw_init(); +#endif + +#ifdef CONFIG_LCD +	at91sam9x5ek_lcd_hw_init(); +#endif +	return 0; +} + +int dram_init(void) +{ +	gd->ram_size = get_ram_size((void *) CONFIG_SYS_SDRAM_BASE, +					CONFIG_SYS_SDRAM_SIZE); +	return 0; +} |