diff options
Diffstat (limited to 'roms/u-boot/board/freescale/p1_p2_rdb/ddr.c')
| -rw-r--r-- | roms/u-boot/board/freescale/p1_p2_rdb/ddr.c | 227 |
1 files changed, 227 insertions, 0 deletions
diff --git a/roms/u-boot/board/freescale/p1_p2_rdb/ddr.c b/roms/u-boot/board/freescale/p1_p2_rdb/ddr.c new file mode 100644 index 00000000..17d3beac --- /dev/null +++ b/roms/u-boot/board/freescale/p1_p2_rdb/ddr.c @@ -0,0 +1,227 @@ +/* + * Copyright 2009, 2011 Freescale Semiconductor, Inc. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <asm/mmu.h> +#include <asm/immap_85xx.h> +#include <asm/processor.h> +#include <fsl_ddr_sdram.h> +#include <asm/io.h> +#include <asm/fsl_law.h> + +DECLARE_GLOBAL_DATA_PTR; + +#define CONFIG_SYS_DDR_CS0_BNDS 0x0000003F +#define CONFIG_SYS_DDR_CS0_CONFIG 0x80014202 +#define CONFIG_SYS_DDR_CS0_CONFIG_2 0x00000000 +#define CONFIG_SYS_DDR_INIT_ADDR 0x00000000 +#define CONFIG_SYS_DDR_INIT_EXT_ADDR 0x00000000 +#define CONFIG_SYS_DDR_MODE_CONTROL 0x00000000 +#define CONFIG_SYS_DDR_ZQ_CONTROL 0x00000000 +#define CONFIG_SYS_DDR_WRLVL_CONTROL 0x00000000 +#define CONFIG_SYS_DDR_SR_CNTR 0x00000000 +#define CONFIG_SYS_DDR_RCW_1 0x00000000 +#define CONFIG_SYS_DDR_RCW_2 0x00000000 +#define CONFIG_SYS_DDR_CONTROL 0x43000000 /* Type = DDR2*/ +#define CONFIG_SYS_DDR_CONTROL_2 0x24401000 +#define CONFIG_SYS_DDR_TIMING_4 0x00000000 +#define CONFIG_SYS_DDR_TIMING_5 0x00000000 + +#define CONFIG_SYS_DDR_TIMING_3_400 0x00010000 +#define CONFIG_SYS_DDR_TIMING_0_400 0x00260802 +#define CONFIG_SYS_DDR_TIMING_1_400 0x39355322 +#define CONFIG_SYS_DDR_TIMING_2_400 0x1f9048ca +#define CONFIG_SYS_DDR_CLK_CTRL_400 0x02800000 +#define CONFIG_SYS_DDR_MODE_1_400 0x00480432 +#define CONFIG_SYS_DDR_MODE_2_400 0x00000000 +#define CONFIG_SYS_DDR_INTERVAL_400 0x06180100 + +#define CONFIG_SYS_DDR_TIMING_3_533 0x00020000 +#define CONFIG_SYS_DDR_TIMING_0_533 0x00260802 +#define CONFIG_SYS_DDR_TIMING_1_533 0x4c47c432 +#define CONFIG_SYS_DDR_TIMING_2_533 0x0f9848ce +#define CONFIG_SYS_DDR_CLK_CTRL_533 0x02800000 +#define CONFIG_SYS_DDR_MODE_1_533 0x00040642 +#define CONFIG_SYS_DDR_MODE_2_533 0x00000000 +#define CONFIG_SYS_DDR_INTERVAL_533 0x08200100 + +#define CONFIG_SYS_DDR_TIMING_3_667 0x00030000 +#define CONFIG_SYS_DDR_TIMING_0_667 0x55770802 +#define CONFIG_SYS_DDR_TIMING_1_667 0x5f599543 +#define CONFIG_SYS_DDR_TIMING_2_667 0x0fa074d1 +#define CONFIG_SYS_DDR_CLK_CTRL_667 0x03000000 +#define CONFIG_SYS_DDR_MODE_1_667 0x00040852 +#define CONFIG_SYS_DDR_MODE_2_667 0x00000000 +#define CONFIG_SYS_DDR_INTERVAL_667 0x0a280100 + +#define CONFIG_SYS_DDR_TIMING_3_800 0x00040000 +#define CONFIG_SYS_DDR_TIMING_0_800 0x00770802 +#define CONFIG_SYS_DDR_TIMING_1_800 0x6f6b6543 +#define CONFIG_SYS_DDR_TIMING_2_800 0x0fa074d1 +#define CONFIG_SYS_DDR_CLK_CTRL_800 0x02800000 +#define CONFIG_SYS_DDR_MODE_1_800 0x00040852 +#define CONFIG_SYS_DDR_MODE_2_800 0x00000000 +#define CONFIG_SYS_DDR_INTERVAL_800 0x0c300100 + +fsl_ddr_cfg_regs_t ddr_cfg_regs_400 = { + .cs[0].bnds = CONFIG_SYS_DDR_CS0_BNDS, + .cs[0].config = CONFIG_SYS_DDR_CS0_CONFIG, + .cs[0].config_2 = CONFIG_SYS_DDR_CS0_CONFIG_2, + .timing_cfg_3 = CONFIG_SYS_DDR_TIMING_3_400, + .timing_cfg_0 = CONFIG_SYS_DDR_TIMING_0_400, + .timing_cfg_1 = CONFIG_SYS_DDR_TIMING_1_400, + .timing_cfg_2 = CONFIG_SYS_DDR_TIMING_2_400, + .ddr_sdram_cfg = CONFIG_SYS_DDR_CONTROL, + .ddr_sdram_cfg_2 = CONFIG_SYS_DDR_CONTROL_2, + .ddr_sdram_mode = CONFIG_SYS_DDR_MODE_1_400, + .ddr_sdram_mode_2 = CONFIG_SYS_DDR_MODE_2_400, + .ddr_sdram_md_cntl = CONFIG_SYS_DDR_MODE_CONTROL, + .ddr_sdram_interval = CONFIG_SYS_DDR_INTERVAL_400, + .ddr_data_init = CONFIG_MEM_INIT_VALUE, + .ddr_sdram_clk_cntl = CONFIG_SYS_DDR_CLK_CTRL_400, + .ddr_init_addr = CONFIG_SYS_DDR_INIT_ADDR, + .ddr_init_ext_addr = CONFIG_SYS_DDR_INIT_EXT_ADDR, + .timing_cfg_4 = CONFIG_SYS_DDR_TIMING_4, + .timing_cfg_5 = CONFIG_SYS_DDR_TIMING_5, + .ddr_zq_cntl = CONFIG_SYS_DDR_ZQ_CONTROL, + .ddr_wrlvl_cntl = CONFIG_SYS_DDR_WRLVL_CONTROL, + .ddr_sr_cntr = CONFIG_SYS_DDR_SR_CNTR, + .ddr_sdram_rcw_1 = CONFIG_SYS_DDR_RCW_1, + .ddr_sdram_rcw_2 = CONFIG_SYS_DDR_RCW_2 +}; + +fsl_ddr_cfg_regs_t ddr_cfg_regs_533 = { + .cs[0].bnds = CONFIG_SYS_DDR_CS0_BNDS, + .cs[0].config = CONFIG_SYS_DDR_CS0_CONFIG, + .cs[0].config_2 = CONFIG_SYS_DDR_CS0_CONFIG_2, + .timing_cfg_3 = CONFIG_SYS_DDR_TIMING_3_533, + .timing_cfg_0 = CONFIG_SYS_DDR_TIMING_0_533, + .timing_cfg_1 = CONFIG_SYS_DDR_TIMING_1_533, + .timing_cfg_2 = CONFIG_SYS_DDR_TIMING_2_533, + .ddr_sdram_cfg = CONFIG_SYS_DDR_CONTROL, + .ddr_sdram_cfg_2 = CONFIG_SYS_DDR_CONTROL_2, + .ddr_sdram_mode = CONFIG_SYS_DDR_MODE_1_533, + .ddr_sdram_mode_2 = CONFIG_SYS_DDR_MODE_2_533, + .ddr_sdram_md_cntl = CONFIG_SYS_DDR_MODE_CONTROL, + .ddr_sdram_interval = CONFIG_SYS_DDR_INTERVAL_533, + .ddr_data_init = CONFIG_MEM_INIT_VALUE, + .ddr_sdram_clk_cntl = CONFIG_SYS_DDR_CLK_CTRL_533, + .ddr_init_addr = CONFIG_SYS_DDR_INIT_ADDR, + .ddr_init_ext_addr = CONFIG_SYS_DDR_INIT_EXT_ADDR, + .timing_cfg_4 = CONFIG_SYS_DDR_TIMING_4, + .timing_cfg_5 = CONFIG_SYS_DDR_TIMING_5, + .ddr_zq_cntl = CONFIG_SYS_DDR_ZQ_CONTROL, + .ddr_wrlvl_cntl = CONFIG_SYS_DDR_WRLVL_CONTROL, + .ddr_sr_cntr = CONFIG_SYS_DDR_SR_CNTR, + .ddr_sdram_rcw_1 = CONFIG_SYS_DDR_RCW_1, + .ddr_sdram_rcw_2 = CONFIG_SYS_DDR_RCW_2 +}; + +fsl_ddr_cfg_regs_t ddr_cfg_regs_667 = { + .cs[0].bnds = CONFIG_SYS_DDR_CS0_BNDS, + .cs[0].config = CONFIG_SYS_DDR_CS0_CONFIG, + .cs[0].config_2 = CONFIG_SYS_DDR_CS0_CONFIG_2, + .timing_cfg_3 = CONFIG_SYS_DDR_TIMING_3_667, + .timing_cfg_0 = CONFIG_SYS_DDR_TIMING_0_667, + .timing_cfg_1 = CONFIG_SYS_DDR_TIMING_1_667, + .timing_cfg_2 = CONFIG_SYS_DDR_TIMING_2_667, + .ddr_sdram_cfg = CONFIG_SYS_DDR_CONTROL, + .ddr_sdram_cfg_2 = CONFIG_SYS_DDR_CONTROL_2, + .ddr_sdram_mode = CONFIG_SYS_DDR_MODE_1_667, + .ddr_sdram_mode_2 = CONFIG_SYS_DDR_MODE_2_667, + .ddr_sdram_md_cntl = CONFIG_SYS_DDR_MODE_CONTROL, + .ddr_sdram_interval = CONFIG_SYS_DDR_INTERVAL_667, + .ddr_data_init = CONFIG_MEM_INIT_VALUE, + .ddr_sdram_clk_cntl = CONFIG_SYS_DDR_CLK_CTRL_667, + .ddr_init_addr = CONFIG_SYS_DDR_INIT_ADDR, + .ddr_init_ext_addr = CONFIG_SYS_DDR_INIT_EXT_ADDR, + .timing_cfg_4 = CONFIG_SYS_DDR_TIMING_4, + .timing_cfg_5 = CONFIG_SYS_DDR_TIMING_5, + .ddr_zq_cntl = CONFIG_SYS_DDR_ZQ_CONTROL, + .ddr_wrlvl_cntl = CONFIG_SYS_DDR_WRLVL_CONTROL, + .ddr_sr_cntr = CONFIG_SYS_DDR_SR_CNTR, + .ddr_sdram_rcw_1 = CONFIG_SYS_DDR_RCW_1, + .ddr_sdram_rcw_2 = CONFIG_SYS_DDR_RCW_2 +}; + +fsl_ddr_cfg_regs_t ddr_cfg_regs_800 = { + .cs[0].bnds = CONFIG_SYS_DDR_CS0_BNDS, + .cs[0].config = CONFIG_SYS_DDR_CS0_CONFIG, + .cs[0].config_2 = CONFIG_SYS_DDR_CS0_CONFIG_2, + .timing_cfg_3 = CONFIG_SYS_DDR_TIMING_3_800, + .timing_cfg_0 = CONFIG_SYS_DDR_TIMING_0_800, + .timing_cfg_1 = CONFIG_SYS_DDR_TIMING_1_800, + .timing_cfg_2 = CONFIG_SYS_DDR_TIMING_2_800, + .ddr_sdram_cfg = CONFIG_SYS_DDR_CONTROL, + .ddr_sdram_cfg_2 = CONFIG_SYS_DDR_CONTROL_2, + .ddr_sdram_mode = CONFIG_SYS_DDR_MODE_1_800, + .ddr_sdram_mode_2 = CONFIG_SYS_DDR_MODE_2_800, + .ddr_sdram_md_cntl = CONFIG_SYS_DDR_MODE_CONTROL, + .ddr_sdram_interval = CONFIG_SYS_DDR_INTERVAL_800, + .ddr_data_init = CONFIG_MEM_INIT_VALUE, + .ddr_sdram_clk_cntl = CONFIG_SYS_DDR_CLK_CTRL_800, + .ddr_init_addr = CONFIG_SYS_DDR_INIT_ADDR, + .ddr_init_ext_addr = CONFIG_SYS_DDR_INIT_EXT_ADDR, + .timing_cfg_4 = CONFIG_SYS_DDR_TIMING_4, + .timing_cfg_5 = CONFIG_SYS_DDR_TIMING_5, + .ddr_zq_cntl = CONFIG_SYS_DDR_ZQ_CONTROL, + .ddr_wrlvl_cntl = CONFIG_SYS_DDR_WRLVL_CONTROL, + .ddr_sr_cntr = CONFIG_SYS_DDR_SR_CNTR, + .ddr_sdram_rcw_1 = CONFIG_SYS_DDR_RCW_1, + .ddr_sdram_rcw_2 = CONFIG_SYS_DDR_RCW_2 +}; + +/* + * Fixed sdram init -- doesn't use serial presence detect. + */ + +phys_size_t fixed_sdram (void) +{ + char buf[32]; + fsl_ddr_cfg_regs_t ddr_cfg_regs; + size_t ddr_size; + struct cpu_type *cpu; + ulong ddr_freq, ddr_freq_mhz; + + cpu = gd->arch.cpu; + /* P1020 and it's derivatives support max 32bit DDR width */ + if (cpu->soc_ver == SVR_P1020 || cpu->soc_ver == SVR_P1011) { + ddr_size = (CONFIG_SYS_SDRAM_SIZE * 1024 * 1024 / 2); + } else { + ddr_size = CONFIG_SYS_SDRAM_SIZE * 1024 * 1024; + } +#if defined(CONFIG_SYS_RAMBOOT) + return ddr_size; +#endif + ddr_freq = get_ddr_freq(0); + ddr_freq_mhz = ddr_freq / 1000000; + + printf("Configuring DDR for %s MT/s data rate\n", + strmhz(buf, ddr_freq)); + + if(ddr_freq_mhz <= 400) + memcpy(&ddr_cfg_regs, &ddr_cfg_regs_400, sizeof(ddr_cfg_regs)); + else if(ddr_freq_mhz <= 533) + memcpy(&ddr_cfg_regs, &ddr_cfg_regs_533, sizeof(ddr_cfg_regs)); + else if(ddr_freq_mhz <= 667) + memcpy(&ddr_cfg_regs, &ddr_cfg_regs_667, sizeof(ddr_cfg_regs)); + else if(ddr_freq_mhz <= 800) + memcpy(&ddr_cfg_regs, &ddr_cfg_regs_800, sizeof(ddr_cfg_regs)); + else + panic("Unsupported DDR data rate %s MT/s data rate\n", + strmhz(buf, ddr_freq)); + + /* P1020 and it's derivatives support max 32bit DDR width */ + if (cpu->soc_ver == SVR_P1020 || cpu->soc_ver == SVR_P1011) { + ddr_cfg_regs.ddr_sdram_cfg |= SDRAM_CFG_32_BE; + ddr_cfg_regs.cs[0].bnds = 0x0000001F; + } + + fsl_ddr_set_memctl_regs(&ddr_cfg_regs, 0, 0); + + set_ddr_laws(0, ddr_size, LAW_TRGT_IF_DDR_1); + return ddr_size; +} |