board/esd/otc570/otc570.c

/*
 * (C) Copyright 2010
 * Daniel Gorsulowski <daniel.gorsulowski@esd.eu>
 * esd electronic system design gmbh <www.esd.eu>
 *
 * (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/at91sam9263.h>
#include <asm/arch/at91sam9_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/clk.h>
#include <asm/arch/gpio.h>
#include <asm/arch/hardware.h>
#include <asm/arch/io.h>
#include <atmel_lcdc.h>
#include <lcd.h>
#include <netdev.h>
#ifdef CONFIG_LCD_INFO
#include <nand.h>
#include <version.h>
#endif

DECLARE_GLOBAL_DATA_PTR;

/*
 * Miscelaneous platform dependent initialisations
 */

static int hw_rev = -1;	/* hardware revision */

int get_hw_rev(void)
{
	if (hw_rev >= 0)
		return hw_rev;

	hw_rev = at91_get_gpio_value(AT91_PIN_PB19);
	hw_rev |= at91_get_gpio_value(AT91_PIN_PB20) << 1;
	hw_rev |= at91_get_gpio_value(AT91_PIN_PB21) << 2;
	hw_rev |= at91_get_gpio_value(AT91_PIN_PB22) << 3;

	if (hw_rev == 15)
		hw_rev = 0;

	return hw_rev;
}

#ifdef CONFIG_CMD_NAND
static void otc570_nand_hw_init(void)
{
	unsigned long csa;

	/* Enable CS3 */
	csa = at91_sys_read(AT91_MATRIX_EBI0CSA);
	at91_sys_write(AT91_MATRIX_EBI0CSA,
		csa | AT91_MATRIX_EBI0_CS3A_SMC_SMARTMEDIA);

	/* Configure SMC CS3 for NAND/SmartMedia */
	at91_sys_write(AT91_SMC_SETUP(3),
		AT91_SMC_NWESETUP_(1) | AT91_SMC_NCS_WRSETUP_(0) |
		AT91_SMC_NRDSETUP_(1) | AT91_SMC_NCS_RDSETUP_(0));
	at91_sys_write(AT91_SMC_PULSE(3),
		AT91_SMC_NWEPULSE_(3) | AT91_SMC_NCS_WRPULSE_(3) |
		AT91_SMC_NRDPULSE_(3) | AT91_SMC_NCS_RDPULSE_(3));
	at91_sys_write(AT91_SMC_CYCLE(3),
		AT91_SMC_NWECYCLE_(5) | AT91_SMC_NRDCYCLE_(5));
	at91_sys_write(AT91_SMC_MODE(3),
		AT91_SMC_READMODE | AT91_SMC_WRITEMODE |
		AT91_SMC_EXNWMODE_DISABLE |
		AT91_SMC_DBW_8 |
		AT91_SMC_TDF_(2));

	/* 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);
}
#endif /* CONFIG_CMD_NAND */

#ifdef CONFIG_MACB
static void otc570_macb_hw_init(void)
{
	/* Enable clock */
	at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9263_ID_EMAC);
	at91_macb_hw_init();
}
#endif

/*
 * Static memory controller initialization to enable Beckhoff ET1100 EtherCAT
 * controller debugging
 * The ET1100 is located at physical address 0x70000000
 * Its process memory is located at physical address 0x70001000
 */
static void otc570_ethercat_hw_init(void)
{
	/* Configure SMC EBI1_CS0 for EtherCAT */
	at91_sys_write(AT91_SMC1_SETUP(0),
		AT91_SMC_NWESETUP_(0) | AT91_SMC_NCS_WRSETUP_(0) |
		AT91_SMC_NRDSETUP_(0) | AT91_SMC_NCS_RDSETUP_(0));
	at91_sys_write(AT91_SMC1_PULSE(0),
		AT91_SMC_NWEPULSE_(4) | AT91_SMC_NCS_WRPULSE_(9) |
		AT91_SMC_NRDPULSE_(5) | AT91_SMC_NCS_RDPULSE_(9));
	at91_sys_write(AT91_SMC1_CYCLE(0),
		AT91_SMC_NWECYCLE_(10) | AT91_SMC_NRDCYCLE_(6));
	/*
	 * Configure behavior at external wait signal, byte-select mode, 16 bit
	 * data bus width, none data float wait states and TDF optimization
	 */
	at91_sys_write(AT91_SMC1_MODE(0),
		AT91_SMC_READMODE | AT91_SMC_EXNWMODE_READY |
		AT91_SMC_BAT_SELECT | AT91_SMC_DBW_16 | AT91_SMC_TDF_(0) |
		AT91_SMC_TDFMODE);

	/* Configure RDY/BSY */
	at91_set_B_periph(AT91_PIN_PE20, 0);	/* EBI1_NWAIT */
}

#ifdef CONFIG_LCD
/* Number of columns and rows, pixel clock in Hz and hsync/vsync polarity */
vidinfo_t panel_info = {
	.vl_col =		640,
	.vl_row =		480,
	.vl_clk =		25175000,
	.vl_sync =		ATMEL_LCDC_INVLINE_INVERTED |
				ATMEL_LCDC_INVFRAME_INVERTED,

	.vl_bpix =		3,	/* Bits per pixel, 0 = 1bit, 3 = 8bit */
	.vl_tft =		1,	/* 0 = passive, 1 = TFT */
	.vl_vsync_len =		1,	/* Length of vertical sync in NOL */
	.vl_upper_margin =	35,	/* Idle lines at the frame start */
	.vl_lower_margin =	5,	/* Idle lines at the end of the frame */
	.vl_hsync_len =		5,	/* Width of the LCDHSYNC pulse */
	.vl_left_margin =	112,	/* Idle cycles at the line beginning */
	.vl_right_margin =	1,	/* Idle cycles at the end of the line */

	.mmio =			AT91SAM9263_LCDC_BASE,
};

void lcd_enable(void)
{
	at91_set_gpio_value(AT91_PIN_PA30, 0);	/* power up */
}

void lcd_disable(void)
{
	at91_set_gpio_value(AT91_PIN_PA30, 1);	/* power down */
}

static void otc570_lcd_hw_init(void)
{
	at91_set_A_periph(AT91_PIN_PC0, 0);	/* LCDVSYNC */
	at91_set_A_periph(AT91_PIN_PC1, 0);	/* LCDHSYNC */
	at91_set_A_periph(AT91_PIN_PC2, 0);	/* LCDDOTCK */
	at91_set_A_periph(AT91_PIN_PC3, 0);	/* LCDDEN */
	at91_set_B_periph(AT91_PIN_PB9, 0);	/* LCDCC */
	at91_set_A_periph(AT91_PIN_PC6, 0);	/* LCDD2 */
	at91_set_A_periph(AT91_PIN_PC7, 0);	/* LCDD3 */
	at91_set_A_periph(AT91_PIN_PC8, 0);	/* LCDD4 */
	at91_set_A_periph(AT91_PIN_PC9, 0);	/* LCDD5 */
	at91_set_A_periph(AT91_PIN_PC10, 0);	/* LCDD6 */
	at91_set_A_periph(AT91_PIN_PC11, 0);	/* LCDD7 */
	at91_set_A_periph(AT91_PIN_PC14, 0);	/* LCDD10 */
	at91_set_A_periph(AT91_PIN_PC15, 0);	/* LCDD11 */
	at91_set_A_periph(AT91_PIN_PC16, 0);	/* LCDD12 */
	at91_set_B_periph(AT91_PIN_PC12, 0);	/* LCDD13 */
	at91_set_A_periph(AT91_PIN_PC18, 0);	/* LCDD14 */
	at91_set_A_periph(AT91_PIN_PC19, 0);	/* LCDD15 */
	at91_set_A_periph(AT91_PIN_PC22, 0);	/* LCDD18 */
	at91_set_A_periph(AT91_PIN_PC23, 0);	/* LCDD19 */
	at91_set_A_periph(AT91_PIN_PC24, 0);	/* LCDD20 */
	at91_set_B_periph(AT91_PIN_PC17, 0);	/* LCDD21 */
	at91_set_A_periph(AT91_PIN_PC26, 0);	/* LCDD22 */
	at91_set_A_periph(AT91_PIN_PC27, 0);	/* LCDD23 */
	at91_set_gpio_output(AT91_PIN_PA30, 1);	/* PCI */

	at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9263_ID_LCDC);

	gd->fb_base = CONFIG_OTC570_LCD_BASE;
}

#ifdef CONFIG_LCD_INFO
void lcd_show_board_info(void)
{
	ulong dram_size, nand_size;
	int i;
	char temp[32];

	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("\n%s\n", U_BOOT_VERSION);
	lcd_printf("%s CPU at %s MHz\n", CONFIG_SYS_AT91_CPU_NAME,
					strmhz(temp, get_cpu_clk_rate()));
	lcd_printf("  %ld MB SDRAM, %ld MB NAND\n",
		dram_size >> 20,
		nand_size >> 20 );
	lcd_printf("  Board            : esd ARM9 HMI Panel - OTC570\n");
	lcd_printf("  Hardware-revision: 1.%d\n", get_hw_rev());
	lcd_printf("  Mach-type        : %lu\n", gd->bd->bi_arch_number);
}
#endif /* CONFIG_LCD_INFO */
#endif /* CONFIG_LCD */

int dram_init(void)
{
	gd->bd->bi_dram[0].start = PHYS_SDRAM;
	gd->bd->bi_dram[0].size = get_ram_size((long *) PHYS_SDRAM, (1 << 27));
	return 0;
}

int board_eth_init(bd_t *bis)
{
	int rc = 0;
#ifdef CONFIG_MACB
	rc = macb_eth_initialize(0, (void *)AT91SAM9263_BASE_EMAC, 0x00);
#endif
	return rc;
}

int checkboard(void)
{
	char str[32];

	puts("Board: esd ARM9 HMI Panel - OTC570");
	if (getenv_r("serial#", str, sizeof(str)) > 0) {
		puts(", serial# ");
		puts(str);
	}
	printf("\nHardware-revision: 1.%d\n", get_hw_rev());
	printf("Mach-type: %lu\n", gd->bd->bi_arch_number);
	return 0;
}

#ifdef CONFIG_SERIAL_TAG
void get_board_serial(struct tag_serialnr *serialnr)
{
	char *str;

	char *serial = getenv("serial#");
	if (serial) {
		str = strchr(serial, '_');
		if (str && (strlen(str) >= 4)) {
			serialnr->high = (*(str + 1) << 8) | *(str + 2);
			serialnr->low = simple_strtoul(str + 3, NULL, 16);
		}
	} else {
		serialnr->high = 0;
		serialnr->low = 0;
	}
}
#endif

#ifdef CONFIG_REVISION_TAG
u32 get_board_rev(void)
{
	return hw_rev | 0x100;
}
#endif

#ifdef CONFIG_MISC_INIT_R
int misc_init_r(void)
{
	char str[64];

	at91_set_gpio_output(AT91_PIN_PA29, 1);
	at91_set_A_periph(AT91_PIN_PA26, 1);			/* TXD0 */
	at91_set_A_periph(AT91_PIN_PA27, 0);			/* RXD0 */
	at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9263_ID_US0);
	/* Set USART_MODE = 1 (RS485) */
	at91_sys_write((0xFFF8C004 - AT91_BASE_SYS), 1);

	printf("USART0: ");

	if (getenv_r("usart0", str, sizeof(str)) == -1) {
		printf("No entry - assuming 1-wire\n");
		/* CTS pin, works as mode select pin (0 = 1-wire; 1 = RS485) */
		at91_set_gpio_output(AT91_PIN_PA29, 0);
	} else {
		if (strcmp(str, "1-wire") == 0) {
			printf("%s\n", str);
			at91_set_gpio_output(AT91_PIN_PA29, 0);
		} else if (strcmp(str, "rs485") == 0) {
			printf("%s\n", str);
			at91_set_gpio_output(AT91_PIN_PA29, 1);
		} else {
			printf("Wrong entry - assuming 1-wire ");
			printf("(valid values are '1-wire' or 'rs485')\n");
			at91_set_gpio_output(AT91_PIN_PA29, 0);
		}
	}
	printf("Display memory address: 0x%08lX\n", gd->fb_base);

	return 0;
}
#endif /* CONFIG_MISC_INIT_R */

int board_init(void)
{
	/* Peripheral Clock Enable Register */
	at91_sys_write(AT91_PMC_PCER,	1 << AT91SAM9263_ID_PIOA |
					1 << AT91SAM9263_ID_PIOB |
					1 << AT91SAM9263_ID_PIOCDE |
					1 << AT91SAM9263_ID_TWI |
					1 << AT91SAM9263_ID_SPI0 |
					1 << AT91SAM9263_ID_LCDC |
					1 << AT91SAM9263_ID_UHP);

	/* arch number of OTC570-Board */
	gd->bd->bi_arch_number = MACH_TYPE_OTC570;

	/* adress of boot parameters */
	gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;

	at91_serial_hw_init();
#ifdef CONFIG_CMD_NAND
	otc570_nand_hw_init();
#endif
	otc570_ethercat_hw_init();
#ifdef CONFIG_HAS_DATAFLASH
	at91_spi0_hw_init(1 << 0);
#endif
#ifdef CONFIG_MACB
	otc570_macb_hw_init();
#endif
#ifdef CONFIG_AT91_CAN
	at91_can_hw_init();
#endif
#ifdef CONFIG_USB_OHCI_NEW
	at91_uhp_hw_init();
#endif
#ifdef CONFIG_LCD
	otc570_lcd_hw_init();
#endif
	return 0;
}