mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-30 08:31:03 +00:00
f0aa26f006
According to ARM PrimeCell PL175 documentation WAIT_OEN config value is defined without any additional clocks added to the value set by a client, the change fixes the wrong interface to WAIT_OEN config. The change also touches a single user of LPC32xx EMC and corrects configured "output enable delay" value on its side according to the changed interface. No functional change intended. Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
81 lines
2 KiB
C
81 lines
2 KiB
C
/*
|
|
* Embest/Timll DevKit3250 board support
|
|
*
|
|
* 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;
|
|
}
|
|
|
|
int board_init(void)
|
|
{
|
|
/* adress of boot parameters */
|
|
gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
|
|
|
|
#ifdef CONFIG_SYS_FLASH_CFI
|
|
/* Use 16-bit memory interface for NOR Flash */
|
|
emc->stat[0].config = EMC_STAT_CONFIG_PB | EMC_STAT_CONFIG_16BIT;
|
|
|
|
/* Change the NOR timings to optimum value to get maximum bandwidth */
|
|
emc->stat[0].waitwen = EMC_STAT_WAITWEN(1);
|
|
emc->stat[0].waitoen = EMC_STAT_WAITOEN(0);
|
|
emc->stat[0].waitrd = EMC_STAT_WAITRD(12);
|
|
emc->stat[0].waitpage = EMC_STAT_WAITPAGE(12);
|
|
emc->stat[0].waitwr = EMC_STAT_WAITWR(5);
|
|
emc->stat[0].waitturn = EMC_STAT_WAITTURN(2);
|
|
#endif
|
|
|
|
return 0;
|
|
}
|
|
|
|
int dram_init(void)
|
|
{
|
|
gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE,
|
|
CONFIG_SYS_SDRAM_SIZE);
|
|
|
|
return 0;
|
|
}
|