u-boot/board/pxa255_idp/pxa_idp.c

/*
 * (C) Copyright 2002
 * Kyle Harris, Nexus Technologies, Inc. kharris@nexus-tech.net
 *
 * (C) Copyright 2002
 * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
 * Marius Groeger <mgroeger@sysgo.de>
 *
 * (C) Copyright 2004
 * BEC Systems <http://bec-systems.com>
 * Cliff Brake <cliff.brake@gmail.com>
 * Support for Accelent/Vibren PXA255 IDP
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */

#include <common.h>
#include <netdev.h>
#include <command.h>
#include <asm/io.h>
#include <asm/arch/pxa.h>
#include <asm/arch/regs-mmc.h>

DECLARE_GLOBAL_DATA_PTR;

/*
 * Miscelaneous platform dependent initialisations
 */

int board_init (void)
{
	/* We have RAM, disable cache */
	dcache_disable();
	icache_disable();

	/* arch number of Lubbock-Board */
	gd->bd->bi_arch_number = MACH_TYPE_PXA_IDP;

	/* adress of boot parameters */
	gd->bd->bi_boot_params = 0xa0000100;

	/* turn on serial ports */
	*(volatile unsigned int *)(PXA_CS5_PHYS + 0x03C0002c) = 0x13;

	/* set PWM for LCD */
	/* a value that works is 60Hz, 77% duty cycle */
	writel(readl(CKEN) | CKEN0_PWM0, CKEN);
	writel(0x3f, PWM_CTRL0);
	writel(0x3ff, PWM_PERVAL0);
	writel(792, PWM_PWDUTY0);

	/* clear reset to AC97 codec */
	writel(readl(CKEN) | CKEN2_AC97, CKEN);
	writel(GCR_COLD_RST, GCR);

	/* enable LCD backlight */
	/* *(volatile unsigned int *)(PXA_CS5_PHYS + 0x03C00030) = 0x7; */

	/* test display */
	/* lcd_puts("This is a test\nTest #2\n"); */

	return 0;
}

#ifdef CONFIG_CMD_MMC
int board_mmc_init(bd_t *bis)
{
	pxa_mmc_register(0);
	return 0;
}
#endif

int board_late_init(void)
{
	setenv("stdout", "serial");
	setenv("stderr", "serial");
	return 0;
}

int dram_init(void)
{
	pxa2xx_dram_init();
	gd->ram_size = PHYS_SDRAM_1_SIZE;
	return 0;
}

void dram_init_banksize(void)
{
	gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
	gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
}

#ifdef DEBUG_BLINKC_ENABLE

void delay_c(void)
{
	/* reset OSCR to 0 */
	writel(0, OSCR);
	while (readl(OSCR) > 0x10000)
		;

	while (readl(OSCR) < 0xd4000)
		;
}

void blink_c(void)
{
	int led_bit = (1<<10);

	writel(led_bit, GPDR0);
	writel(led_bit, GPCR0);
	delay_c();
	writel(led_bit, GPSR0);
	delay_c();
	writel(led_bit, GPCR0);
}

int do_idpcmd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
	printf("IDPCMD started\n");
	return 0;
}

U_BOOT_CMD(idpcmd, CONFIG_SYS_MAXARGS, 0, do_idpcmd,
	   "custom IDP command",
	   "no args at this time"
);

#endif

#ifdef CONFIG_CMD_NET
int board_eth_init(bd_t *bis)
{
	int rc = 0;
#ifdef CONFIG_SMC91111
	rc = smc91111_initialize(0, CONFIG_SMC91111_BASE);
#endif
	return rc;
}
#endif