work_92105.c
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/*
* WORK Microwave work_92105 board support
*
* (C) Copyright 2014 DENX Software Engineering GmbH
* Written-by: Albert ARIBAUD <albert.aribaud@3adev.fr>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <asm/io.h>
#include <asm/arch/sys_proto.h>
#include <asm/arch/cpu.h>
#include <asm/arch/clk.h>
#include <asm/arch/emc.h>
#include <asm/arch/wdt.h>
#include <asm/gpio.h>
#include <spl.h>
#include "work_92105_display.h"
DECLARE_GLOBAL_DATA_PTR;
static struct clk_pm_regs *clk = (struct clk_pm_regs *)CLK_PM_BASE;
static struct wdt_regs *wdt = (struct wdt_regs *)WDT_BASE;
void reset_periph(void)
{
setbits_le32(&clk->timclk_ctrl, CLK_TIMCLK_WATCHDOG);
writel(WDTIM_MCTRL_RESFRC1, &wdt->mctrl);
udelay(150);
writel(0, &wdt->mctrl);
clrbits_le32(&clk->timclk_ctrl, CLK_TIMCLK_WATCHDOG);
}
int board_early_init_f(void)
{
/* initialize serial port for console */
lpc32xx_uart_init(CONFIG_SYS_LPC32XX_UART);
/* enable I2C, SSP, MAC, NAND */
lpc32xx_i2c_init(1); /* only I2C1 has devices, I2C2 has none */
lpc32xx_ssp_init();
lpc32xx_mac_init();
lpc32xx_mlc_nand_init();
/* Display must wait until after relocation and devices init */
return 0;
}
#define GPO_19 115
int board_early_init_r(void)
{
/* Set NAND !WP to 1 through GPO_19 */
gpio_request(GPO_19, "NAND_nWP");
gpio_direction_output(GPO_19, 1);
/* initialize display */
work_92105_display_init();
return 0;
}
int board_init(void)
{
reset_periph();
/* adress of boot parameters */
gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
return 0;
}
int dram_init(void)
{
gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE,
CONFIG_SYS_SDRAM_SIZE);
return 0;
}