1 // SPDX-License-Identifier: GPL-2.0+ 2 /* 3 * Embest/Timll DevKit3250 board support 4 * 5 * Copyright (C) 2011-2015 Vladimir Zapolskiy <vz (at) mleia.com> 6 */ 7 8 #include <common.h> 9 #include <asm/arch/sys_proto.h> 10 #include <asm/arch/clk.h> 11 #include <asm/arch/cpu.h> 12 #include <asm/arch/emc.h> 13 #include <asm/arch/wdt.h> 14 #include <asm/io.h> 15 16 DECLARE_GLOBAL_DATA_PTR; 17 18 static struct emc_regs *emc = (struct emc_regs *)EMC_BASE; 19 static struct clk_pm_regs *clk = (struct clk_pm_regs *)CLK_PM_BASE; 20 static struct wdt_regs *wdt = (struct wdt_regs *)WDT_BASE; 21 22 void reset_periph(void) 23 { 24 /* This function resets peripherals by triggering RESOUT_N */ 25 setbits_le32(&clk->timclk_ctrl, CLK_TIMCLK_WATCHDOG); 26 writel(WDTIM_MCTRL_RESFRC1, &wdt->mctrl); 27 udelay(300); 28 29 writel(0, &wdt->mctrl); 30 clrbits_le32(&clk->timclk_ctrl, CLK_TIMCLK_WATCHDOG); 31 32 /* Such a long delay is needed to initialize SMSC phy */ 33 udelay(10000); 34 } 35 36 int board_early_init_f(void) 37 { 38 lpc32xx_uart_init(CONFIG_SYS_LPC32XX_UART); 39 lpc32xx_i2c_init(1); 40 lpc32xx_i2c_init(2); 41 lpc32xx_ssp_init(); 42 lpc32xx_mac_init(); 43 44 /* 45 * nWP may be controlled by GPO19, but unpopulated by default R23 46 * makes no sense to configure this GPIO level, nWP is always high 47 */ 48 lpc32xx_slc_nand_init(); 49 50 return 0; 51 } 52 53 int board_init(void) 54 { 55 /* adress of boot parameters */ 56 gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100; 57 58 #ifdef CONFIG_SYS_FLASH_CFI 59 /* Use 16-bit memory interface for NOR Flash */ 60 emc->stat[0].config = EMC_STAT_CONFIG_PB | EMC_STAT_CONFIG_16BIT; 61 62 /* Change the NOR timings to optimum value to get maximum bandwidth */ 63 emc->stat[0].waitwen = EMC_STAT_WAITWEN(1); 64 emc->stat[0].waitoen = EMC_STAT_WAITOEN(0); 65 emc->stat[0].waitrd = EMC_STAT_WAITRD(12); 66 emc->stat[0].waitpage = EMC_STAT_WAITPAGE(12); 67 emc->stat[0].waitwr = EMC_STAT_WAITWR(5); 68 emc->stat[0].waitturn = EMC_STAT_WAITTURN(2); 69 #endif 70 71 return 0; 72 } 73 74 int dram_init(void) 75 { 76 gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE, 77 CONFIG_SYS_SDRAM_SIZE); 78 79 return 0; 80 } 81
