diff options
author | Wolfgang Denk <wd@denx.de> | 2011-12-02 00:17:49 +0100 |
---|---|---|
committer | Wolfgang Denk <wd@denx.de> | 2011-12-02 00:17:49 +0100 |
commit | 7708d8b352e9e595f6f08afd3206af6495c7dc09 (patch) | |
tree | fb9811040b2b1f55c44fc7274473f2ef0847c19b /board/freescale/p3060qds/ddr.c | |
parent | d887ad54ca74063338bc3108beed0aa4f15d1f6b (diff) | |
parent | f008b17f8c2995996b5d100b71f8851d6f74a136 (diff) |
Merge branch 'master' of ssh://gemini/home/wd/git/u-boot/master
* 'master' of ssh://gemini/home/wd/git/u-boot/master:
board/emk/top860/top860.c: Fix GCC 4.6 build warning
board/sbc405/strataflash.c: Fix GCC 4.6 build warning
arch/powerpc/cpu/mpc86xx/cpu.c: Fix GCC 4.6 build warning
board/freescale/mpc8610hpcd/mpc8610hpcd.c: Fix GCC 4.6 build warning
board/mpl/common/flash.c: Fix GCC 4.6 build warning
post/board/lwmon5/gdc.c: Fix GCC 4.6 build warning
drivers/usb/host/sl811-hcd.c: Fix GCC 4.6 build warning
board/sandburst/common/flash.c: Fix GCC 4.6 build warning
DB64460: Fix GCC 4.6 build warnings
DB64360: Fix GCC 4.6 build warnings
board/cray/L1/flash.c: Fix GCC 4.6 build warning
drivers/block/sata_dwc.c: Fix GCC 4.6 build warning
board/amirix/ap1000/flash.c: Fix GCC 4.6 build warning
alpr board: Fix GCC 4.6 build warnings
image: Don't detect XIP images as overlapping.
image: Implement IH_TYPE_KERNEL_NOLOAD
ppc4xx: Add Io64 board support
ppc4xx: fix PMC440 painit command
ppc4xx: remove invalid access to PCI_BRDGOPT2 register
ppc4xx: use CONFIG_PCI_BOOTDELAY instead of private implementation
mpc85xx: support for Freescale COM Express P2020
arch/powerpc/cpu/mpc8xxx/ddr/interactive.c: Fix GCC 4.6 build warning
mpc85xx: support board-specific reset function
powerpc/85xx: verify the localbus device tree address before booting the OS
mpc8xxx: update module_type values from JEDEC DDR3 SPD Specification
powerpc/p3060qds: Add board related support for P3060QDS platform
powerpc/85xx: clean up and document the QE/FMAN microcode macros
powerpc/85xx: always implement the work-around for Erratum SATA_A001
powerpc/85xx: CONFIG_FSL_SATA_V2 should be defined in config_mpc85xx.h
powerpc/85xx: Add workaround for erratum A-003474
powerpc/85xx: fixup flexcan device tree clock-frequency
powerpc/85xx: Add workaround for erratum CPU-A003999
x86: Fix some bugs in the i8402 driver when no controller is present
x86: Make the i8042 driver checkpatch clean
x86: Wrap small helper functions from libgcc to avoid an ABI mismatch
x86: Import the glibc memset implementation
x86: Fix a few recently added bugs
x86: Don't relocate symbols which point to things that aren't relocated
x86: Fix how the location of the realmode and bios blobs are calculated
x86: Misc cleanups
x86: Misc PCI touchups
x86: Ensure IDT and GDT remain 16-byte aligned post relocation
x86: Provide more configuration granularity
x86: Add multiboot header
sc520: Create arch asm-offsets
x86: Punt cold- and warm-boot flags
cosmetic: checkpatch cleanup of board/eNET/*.c
cosmetic: checkpatch cleanup of arch/x86/lib/*.c
cosmetic: checkpatch cleanup of arch/x86/cpu/sc520/*.c
cosmetic: checkpatch cleanup of arch/x86/cpu/*.c
x86: Call hang() on unrecoverable exception
menu.c: use puts() instead of printf() where possible
MAKEALL: drop obsolete mx31pdk_nand target
dataflash: fix parameters order in write_dataflash()
hawkboard: Replace HAWKBOARD_KICK{0, 1}_UNLOCK defines
davinci_sonata: define CONFIG_MACH_TYPE for davinci_sonata board
davinci_schmoogie: define CONFIG_MACH_TYPE for davinci_schmoogie board
arm: a320evb: define mach-type in board config file
OMAP3: Use sdelay from arch/arm/cpu/armv7/syslib.c instead of cloning that.
Fix Stelian's email address
DIU: 1080P and 720P support
CFB: Fix font rendering on mx5 framebuffer
Diffstat (limited to 'board/freescale/p3060qds/ddr.c')
-rw-r--r-- | board/freescale/p3060qds/ddr.c | 248 |
1 files changed, 248 insertions, 0 deletions
diff --git a/board/freescale/p3060qds/ddr.c b/board/freescale/p3060qds/ddr.c new file mode 100644 index 0000000000..9affbf09f7 --- /dev/null +++ b/board/freescale/p3060qds/ddr.c @@ -0,0 +1,248 @@ +/* + * Copyright 2009-2011 Freescale Semiconductor, Inc. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * Version 2 as published by the Free Software Foundation. + */ + +#include <common.h> +#include <i2c.h> +#include <hwconfig.h> +#include <asm/mmu.h> +#include <asm/fsl_ddr_sdram.h> +#include <asm/fsl_ddr_dimm_params.h> +#include <asm/fsl_law.h> + +#include "p3060qds.h" + +/* + * Fixed sdram init -- doesn't use serial presence detect. + */ + +phys_size_t fixed_sdram(void) +{ + int i; + char buf[32]; + fsl_ddr_cfg_regs_t ddr_cfg_regs; + phys_size_t ddr_size; + unsigned int lawbar1_target_id; + ulong ddr_freq, ddr_freq_mhz; + + 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)); + + for (i = 0; fixed_ddr_parm_0[i].max_freq > 0; i++) { + if ((ddr_freq_mhz > fixed_ddr_parm_0[i].min_freq) && + (ddr_freq_mhz <= fixed_ddr_parm_0[i].max_freq)) { + memcpy(&ddr_cfg_regs, + fixed_ddr_parm_0[i].ddr_settings, + sizeof(ddr_cfg_regs)); + break; + } + } + + if (fixed_ddr_parm_0[i].max_freq == 0) + panic("Unsupported DDR data rate %s MT/s data rate\n", + strmhz(buf, ddr_freq)); + + ddr_size = (phys_size_t) CONFIG_SYS_SDRAM_SIZE * 1024 * 1024; + ddr_cfg_regs.ddr_cdr1 = DDR_CDR1_DHC_EN; + fsl_ddr_set_memctl_regs(&ddr_cfg_regs, 0); + + /* + * setup laws for DDR. If not interleaving, presuming half memory on + * DDR1 and the other half on DDR2 + */ + if (fixed_ddr_parm_0[i].ddr_settings->cs[0].config & 0x20000000) { + if (set_ddr_laws(CONFIG_SYS_DDR_SDRAM_BASE, + ddr_size, + LAW_TRGT_IF_DDR_INTRLV) < 0) { + printf("ERROR setting Local Access Windows for DDR\n"); + return 0; + } + } else { + lawbar1_target_id = LAW_TRGT_IF_DDR_1; + if (set_ddr_laws(CONFIG_SYS_DDR_SDRAM_BASE, + ddr_size, + lawbar1_target_id) < 0) { + printf("ERROR setting Local Access Windows for DDR\n"); + return 0; + } + } + return ddr_size; +} + +struct board_specific_params { + u32 n_ranks; + u32 datarate_mhz_high; + u32 clk_adjust; + u32 wrlvl_start; + u32 cpo; + u32 write_data_delay; + u32 force_2T; +}; + +/* + * This table contains all valid speeds we want to override with board + * specific parameters. datarate_mhz_high values need to be in ascending order + * for each n_ranks group. + */ +static const struct board_specific_params udimm[] = { + /* + * memory controller 0 + * num| hi| clk| wrlvl | cpo |wrdata|2T + * ranks| mhz|adjst| start | |delay | + */ + {4, 850, 4, 6, 0xff, 2, 0}, + {4, 950, 5, 7, 0xff, 2, 0}, + {4, 1050, 5, 8, 0xff, 2, 0}, + {4, 1250, 5, 10, 0xff, 2, 0}, + {4, 1350, 5, 11, 0xff, 2, 0}, + {4, 1666, 5, 12, 0xff, 2, 0}, + {2, 850, 5, 6, 0xff, 2, 0}, + {2, 950, 5, 7, 0xff, 2, 0}, + {2, 1250, 4, 6, 0xff, 2, 0}, + {2, 1350, 5, 7, 0xff, 2, 0}, + {2, 1666, 5, 8, 0xff, 2, 0}, + {1, 850, 4, 5, 0xff, 2, 0}, + {1, 950, 4, 7, 0xff, 2, 0}, + {1, 1666, 4, 8, 0xff, 2, 0}, + {} +}; + +static const struct board_specific_params rdimm[] = { + /* + * memory controller 0 + * num| hi| clk| wrlvl | cpo |wrdata|2T + * ranks| mhz|adjst| start | |delay | + */ + {4, 850, 4, 6, 0xff, 2, 0}, + {4, 950, 5, 7, 0xff, 2, 0}, + {4, 1050, 5, 8, 0xff, 2, 0}, + {4, 1250, 5, 10, 0xff, 2, 0}, + {4, 1350, 5, 11, 0xff, 2, 0}, + {4, 1666, 5, 12, 0xff, 2, 0}, + {2, 850, 4, 6, 0xff, 2, 0}, + {2, 1050, 4, 7, 0xff, 2, 0}, + {2, 1666, 4, 8, 0xff, 2, 0}, + {1, 850, 4, 5, 0xff, 2, 0}, + {1, 950, 4, 7, 0xff, 2, 0}, + {1, 1666, 4, 8, 0xff, 2, 0}, + {} +}; + +void fsl_ddr_board_options(memctl_options_t *popts, + dimm_params_t *pdimm, + unsigned int ctrl_num) +{ + const struct board_specific_params *pbsp, *pbsp_highest = NULL; + ulong ddr_freq; + + if (ctrl_num) { + printf("Wrong parameter for controller number %d", ctrl_num); + return; + } + if (!pdimm->n_ranks) + return; + + if (popts->registered_dimm_en) + pbsp = rdimm; + else + pbsp = udimm; + + /* Get clk_adjust, cpo, write_data_delay,2T, according to the board ddr + * freqency and n_banks specified in board_specific_parameters table. + */ + ddr_freq = get_ddr_freq(0) / 1000000; + while (pbsp->datarate_mhz_high) { + if (pbsp->n_ranks == pdimm->n_ranks) { + if (ddr_freq <= pbsp->datarate_mhz_high) { + popts->cpo_override = pbsp->cpo; + popts->write_data_delay = + pbsp->write_data_delay; + popts->clk_adjust = pbsp->clk_adjust; + popts->wrlvl_start = pbsp->wrlvl_start; + popts->twoT_en = pbsp->force_2T; + goto found; + } + pbsp_highest = pbsp; + } + pbsp++; + } + + if (pbsp_highest) { + printf("Error: board specific timing not found " + "for data rate %lu MT/s!\n" + "Trying to use the highest speed (%u) parameters\n", + ddr_freq, pbsp_highest->datarate_mhz_high); + popts->cpo_override = pbsp_highest->cpo; + popts->write_data_delay = pbsp_highest->write_data_delay; + popts->clk_adjust = pbsp_highest->clk_adjust; + popts->wrlvl_start = pbsp_highest->wrlvl_start; + popts->twoT_en = pbsp_highest->force_2T; + } else { + panic("DIMM is not supported by this board"); + } + + +found: + + /* + * The datasheet of HMT125U7BFR8C-H9 blocks CL=7 as reservered. + * However SPD still claims CL=7 is supported. Extensive tests + * confirmed this board cannot work stably with CL=7 with this + * particular DIMM. + */ + if (ddr_freq >= 800 && ddr_freq < 1066 && \ + !strncmp(pdimm[0].mpart, "HMT125U7BFR8C-H9", 16)) { + popts->cas_latency_override = 1; + popts->cas_latency_override_value = 8; + debug("Override CL to 8\n"); + } + /* + * Factors to consider for half-strength driver enable: + * - number of DIMMs installed + */ + popts->half_strength_driver_enable = 0; + /* + * Write leveling override + */ + popts->wrlvl_override = 1; + popts->wrlvl_sample = 0xf; + + /* + * Rtt and Rtt_WR override + */ + popts->rtt_override = 0; + + /* Enable ZQ calibration */ + popts->zq_en = 1; + + /* DHC_EN =1, ODT = 60 Ohm */ + popts->ddr_cdr1 = DDR_CDR1_DHC_EN; +} + +phys_size_t initdram(int board_type) +{ + phys_size_t dram_size; + + puts("Initializing...."); + + if (fsl_use_spd()) { + puts("using SPD\n"); + dram_size = fsl_ddr_sdram(); + } else { + puts("using fixed parameters\n"); + dram_size = fixed_sdram(); + } + + dram_size = setup_ddr_tlbs(dram_size / 0x100000); + dram_size *= 0x100000; + + debug(" DDR: "); + return dram_size; +} |