| // SPDX-License-Identifier: GPL-2.0+ |
| /* |
| * Copyright 2013 Freescale Semiconductor, Inc. |
| */ |
| |
| #include <common.h> |
| #include <init.h> |
| #include <ns16550.h> |
| #include <asm/io.h> |
| #include <nand.h> |
| #include <linux/compiler.h> |
| #include <asm/fsl_law.h> |
| #include <fsl_ddr_sdram.h> |
| #include <asm/global_data.h> |
| #include <linux/delay.h> |
| |
| DECLARE_GLOBAL_DATA_PTR; |
| |
| static void sdram_init(void) |
| { |
| struct ccsr_ddr __iomem *ddr = |
| (struct ccsr_ddr __iomem *)CONFIG_SYS_FSL_DDR_ADDR; |
| #if CONFIG_DDR_CLK_FREQ == 100000000 |
| __raw_writel(CONFIG_SYS_DDR_CS0_BNDS, &ddr->cs0_bnds); |
| __raw_writel(CONFIG_SYS_DDR_CS0_CONFIG, &ddr->cs0_config); |
| __raw_writel(CONFIG_SYS_DDR_CONTROL_800 | SDRAM_CFG_32_BE, &ddr->sdram_cfg); |
| __raw_writel(CONFIG_SYS_DDR_CONTROL_2_800, &ddr->sdram_cfg_2); |
| __raw_writel(CONFIG_SYS_DDR_DATA_INIT, &ddr->sdram_data_init); |
| |
| __raw_writel(CONFIG_SYS_DDR_TIMING_3_800, &ddr->timing_cfg_3); |
| __raw_writel(CONFIG_SYS_DDR_TIMING_0_800, &ddr->timing_cfg_0); |
| __raw_writel(CONFIG_SYS_DDR_TIMING_1_800, &ddr->timing_cfg_1); |
| __raw_writel(CONFIG_SYS_DDR_TIMING_2_800, &ddr->timing_cfg_2); |
| __raw_writel(CONFIG_SYS_DDR_MODE_1_800, &ddr->sdram_mode); |
| __raw_writel(CONFIG_SYS_DDR_MODE_2_800, &ddr->sdram_mode_2); |
| __raw_writel(CONFIG_SYS_DDR_INTERVAL_800, &ddr->sdram_interval); |
| __raw_writel(CONFIG_SYS_DDR_CLK_CTRL_800, &ddr->sdram_clk_cntl); |
| __raw_writel(CONFIG_SYS_DDR_WRLVL_CONTROL_800, &ddr->ddr_wrlvl_cntl); |
| |
| __raw_writel(CONFIG_SYS_DDR_TIMING_4_800, &ddr->timing_cfg_4); |
| __raw_writel(CONFIG_SYS_DDR_TIMING_5_800, &ddr->timing_cfg_5); |
| __raw_writel(CONFIG_SYS_DDR_ZQ_CONTROL, &ddr->ddr_zq_cntl); |
| #elif CONFIG_DDR_CLK_FREQ == 133000000 |
| __raw_writel(CONFIG_SYS_DDR_CS0_BNDS, &ddr->cs0_bnds); |
| __raw_writel(CONFIG_SYS_DDR_CS0_CONFIG, &ddr->cs0_config); |
| __raw_writel(CONFIG_SYS_DDR_CONTROL_1333 | SDRAM_CFG_32_BE, &ddr->sdram_cfg); |
| __raw_writel(CONFIG_SYS_DDR_CONTROL_2_1333, &ddr->sdram_cfg_2); |
| __raw_writel(CONFIG_SYS_DDR_DATA_INIT, &ddr->sdram_data_init); |
| |
| __raw_writel(CONFIG_SYS_DDR_TIMING_3_1333, &ddr->timing_cfg_3); |
| __raw_writel(CONFIG_SYS_DDR_TIMING_0_1333, &ddr->timing_cfg_0); |
| __raw_writel(CONFIG_SYS_DDR_TIMING_1_1333, &ddr->timing_cfg_1); |
| __raw_writel(CONFIG_SYS_DDR_TIMING_2_1333, &ddr->timing_cfg_2); |
| __raw_writel(CONFIG_SYS_DDR_MODE_1_1333, &ddr->sdram_mode); |
| __raw_writel(CONFIG_SYS_DDR_MODE_2_1333, &ddr->sdram_mode_2); |
| __raw_writel(CONFIG_SYS_DDR_INTERVAL_1333, &ddr->sdram_interval); |
| __raw_writel(CONFIG_SYS_DDR_CLK_CTRL_1333, &ddr->sdram_clk_cntl); |
| __raw_writel(CONFIG_SYS_DDR_WRLVL_CONTROL_1333, &ddr->ddr_wrlvl_cntl); |
| |
| __raw_writel(CONFIG_SYS_DDR_TIMING_4_1333, &ddr->timing_cfg_4); |
| __raw_writel(CONFIG_SYS_DDR_TIMING_5_1333, &ddr->timing_cfg_5); |
| __raw_writel(CONFIG_SYS_DDR_ZQ_CONTROL, &ddr->ddr_zq_cntl); |
| #else |
| puts("Not a valid DDR Freq Found! Please Reset\n"); |
| #endif |
| asm volatile("sync;isync"); |
| udelay(500); |
| |
| /* Let the controller go */ |
| out_be32(&ddr->sdram_cfg, in_be32(&ddr->sdram_cfg) | SDRAM_CFG_MEM_EN); |
| |
| set_next_law(CONFIG_SYS_NAND_DDR_LAW, LAW_SIZE_1G, LAW_TRGT_IF_DDR_1); |
| } |
| |
| void board_init_f(ulong bootflag) |
| { |
| u32 plat_ratio; |
| ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR; |
| |
| /* initialize selected port with appropriate baud rate */ |
| plat_ratio = in_be32(&gur->porpllsr) & MPC85xx_PORPLLSR_PLAT_RATIO; |
| plat_ratio >>= 1; |
| gd->bus_clk = CONFIG_SYS_CLK_FREQ * plat_ratio; |
| |
| NS16550_init((NS16550_t)CONFIG_SYS_NS16550_COM1, |
| gd->bus_clk / 16 / CONFIG_BAUDRATE); |
| |
| puts("\nNAND boot... "); |
| |
| /* Initialize the DDR3 */ |
| sdram_init(); |
| |
| /* copy code to RAM and jump to it - this should not return */ |
| /* NOTE - code has to be copied out of NAND buffer before |
| * other blocks can be read. |
| */ |
| relocate_code(CONFIG_SPL_RELOC_STACK, 0, CONFIG_SPL_RELOC_TEXT_BASE); |
| } |
| |
| void board_init_r(gd_t *gd, ulong dest_addr) |
| { |
| nand_boot(); |
| } |
| |
| void putc(char c) |
| { |
| if (c == '\n') |
| NS16550_putc((NS16550_t)CONFIG_SYS_NS16550_COM1, '\r'); |
| |
| NS16550_putc((NS16550_t)CONFIG_SYS_NS16550_COM1, c); |
| } |
| |
| void puts(const char *str) |
| { |
| while (*str) |
| putc(*str++); |
| } |