mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-25 03:18:51 +09:00
![Albert ARIBAUD \(3ADEV\)](/assets/img/avatar_default.png)
Work_92105 from Work Microwave is an LPC3250- based board with the following features: - 64MB or 128MB SDR DRAM - 1 GB SLC NAND, managed through MLC controller. - Ethernet - Ethernet + PHY SMSC8710 - I2C: - EEPROM (24M01-compatible) - RTC (DS1374-compatible) - Temperature sensor (DS620) - DACs (2 x MAX518) - SPI (through SSP interface) - Port expander MAX6957 - LCD display (HD44780-compatible), controlled through the port expander and DACs This board has SPL support, and uses the LPC32XX boot image format. Signed-off-by: Albert ARIBAUD (3ADEV) <albert.aribaud@3adev.fr>
78 lines
1.7 KiB
C
78 lines
1.7 KiB
C
/*
|
|
* 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;
|
|
}
|