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lpc32xx: devkit3250: update of board configuration

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This change adds more peripherals to Timll DevKit3250 board, namely
MAC and SMSC phy, SLC NAND, GPIO, SPI and I2C.

Also the default serial console is changed to UART5, added an option
to pass device tree blob by means of bootm, predefined environment
variables are slightly extended and reserved space on NAND to store
user defined U-boot environment.

Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
This commit is contained in:
Vladimir Zapolskiy
2015-07-18 01:47:10 +03:00
committed by Tom Rini
parent dcfd37e5ef
commit 768ddeeecf
3 changed files with 120 additions and 6 deletions
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31
board/timll/devkit3250/devkit3250.c
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@@ -1,23 +1,52 @@
/*
* Embest/Timll DevKit3250 board support
*
* Copyright (C) 2011 Vladimir Zapolskiy <vz@mleia.com>
* Copyright (C) 2011-2015 Vladimir Zapolskiy <vz@mleia.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <asm/arch/sys_proto.h>
#include <asm/arch/clk.h>
#include <asm/arch/cpu.h>
#include <asm/arch/emc.h>
#include <asm/arch/wdt.h>
#include <asm/io.h>
DECLARE_GLOBAL_DATA_PTR;
static struct emc_regs *emc = (struct emc_regs *)EMC_BASE;
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)
{
/* This function resets peripherals by triggering RESOUT_N */
setbits_le32(&clk->timclk_ctrl, CLK_TIMCLK_WATCHDOG);
writel(WDTIM_MCTRL_RESFRC1, &wdt->mctrl);
udelay(300);
writel(0, &wdt->mctrl);
clrbits_le32(&clk->timclk_ctrl, CLK_TIMCLK_WATCHDOG);
/* Such a long delay is needed to initialize SMSC phy */
udelay(10000);
}
int board_early_init_f(void)
{
lpc32xx_uart_init(CONFIG_SYS_LPC32XX_UART);
lpc32xx_i2c_init(1);
lpc32xx_i2c_init(2);
lpc32xx_ssp_init();
lpc32xx_mac_init();
/*
* nWP may be controlled by GPO19, but unpopulated by default R23
* makes no sense to configure this GPIO level, nWP is always high
*/
lpc32xx_slc_nand_init();
return 0;
}