mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-09 20:56:16 +09:00
83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
68 lines
1.5 KiB
C
68 lines
1.5 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2013 Keymile AG
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* Valentin Longchamp <valentin.longchamp@keymile.com>
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*
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* Copyright 2009-2011 Freescale Semiconductor, Inc.
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*/
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#include <common.h>
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#include <i2c.h>
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#include <hwconfig.h>
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#include <asm/mmu.h>
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#include <fsl_ddr_sdram.h>
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#include <fsl_ddr_dimm_params.h>
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DECLARE_GLOBAL_DATA_PTR;
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void fsl_ddr_board_options(memctl_options_t *popts,
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dimm_params_t *pdimm,
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unsigned int ctrl_num)
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{
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if (ctrl_num) {
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printf("Wrong parameter for controller number %d", ctrl_num);
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return;
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}
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/* automatic calibration for nb of cycles between read and DQS pre */
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popts->cpo_override = 0xFF;
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/* 1/2 clk delay between wr command and data strobe */
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popts->write_data_delay = 4;
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/* clk lauched 1/2 applied cylcle after address command */
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popts->clk_adjust = 4;
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/* 1T timing: command/address held for only 1 cycle */
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popts->twot_en = 0;
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/* we have only one module, half str should be OK */
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popts->half_strength_driver_enable = 1;
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/* wrlvl values overridden as recommended by ddr init func */
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popts->wrlvl_override = 1;
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popts->wrlvl_sample = 0xf;
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popts->wrlvl_start = 0x6;
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/* Enable ZQ calibration */
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popts->zq_en = 1;
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/* DHC_EN =1, ODT = 75 Ohm */
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popts->ddr_cdr1 = DDR_CDR1_DHC_EN | DDR_CDR_ODT_75ohm;
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}
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int dram_init(void)
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{
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phys_size_t dram_size = 0;
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puts("Initializing with SPD\n");
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dram_size = fsl_ddr_sdram();
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dram_size = setup_ddr_tlbs(dram_size / 0x100000);
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dram_size *= 0x100000;
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debug(" DDR: ");
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gd->ram_size = dram_size;
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return 0;
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}
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