mirror of
https://github.com/AsahiLinux/u-boot
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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>
113 lines
2.9 KiB
C
113 lines
2.9 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* SPL specific code for Compulab CM-T335 board
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*
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* Board functions for Compulab CM-T335 board
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*
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* Copyright (C) 2013, Compulab Ltd - http://compulab.co.il/
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*
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* Author: Ilya Ledvich <ilya@compulab.co.il>
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*/
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#include <common.h>
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#include <errno.h>
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#include <asm/arch/ddr_defs.h>
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#include <asm/arch/clock.h>
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#include <asm/arch/clocks_am33xx.h>
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#include <asm/arch/sys_proto.h>
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#include <asm/arch/hardware_am33xx.h>
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#include <linux/sizes.h>
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const struct ctrl_ioregs ioregs = {
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.cm0ioctl = MT41J128MJT125_IOCTRL_VALUE,
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.cm1ioctl = MT41J128MJT125_IOCTRL_VALUE,
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.cm2ioctl = MT41J128MJT125_IOCTRL_VALUE,
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.dt0ioctl = MT41J128MJT125_IOCTRL_VALUE,
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.dt1ioctl = MT41J128MJT125_IOCTRL_VALUE,
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};
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static const struct ddr_data ddr3_data = {
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.datardsratio0 = MT41J128MJT125_RD_DQS,
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.datawdsratio0 = MT41J128MJT125_WR_DQS,
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.datafwsratio0 = MT41J128MJT125_PHY_FIFO_WE,
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.datawrsratio0 = MT41J128MJT125_PHY_WR_DATA,
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};
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static const struct cmd_control ddr3_cmd_ctrl_data = {
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.cmd0csratio = MT41J128MJT125_RATIO,
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.cmd0iclkout = MT41J128MJT125_INVERT_CLKOUT,
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.cmd1csratio = MT41J128MJT125_RATIO,
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.cmd1iclkout = MT41J128MJT125_INVERT_CLKOUT,
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.cmd2csratio = MT41J128MJT125_RATIO,
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.cmd2iclkout = MT41J128MJT125_INVERT_CLKOUT,
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};
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static struct emif_regs ddr3_emif_reg_data = {
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.sdram_config = MT41J128MJT125_EMIF_SDCFG,
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.ref_ctrl = MT41J128MJT125_EMIF_SDREF,
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.sdram_tim1 = MT41J128MJT125_EMIF_TIM1,
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.sdram_tim2 = MT41J128MJT125_EMIF_TIM2,
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.sdram_tim3 = MT41J128MJT125_EMIF_TIM3,
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.zq_config = MT41J128MJT125_ZQ_CFG,
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.emif_ddr_phy_ctlr_1 = MT41J128MJT125_EMIF_READ_LATENCY |
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PHY_EN_DYN_PWRDN,
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};
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const struct dpll_params dpll_ddr = {
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/* M N M2 M3 M4 M5 M6 */
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303, (V_OSCK/1000000) - 1, 1, -1, -1, -1, -1};
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void am33xx_spl_board_init(void)
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{
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struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE;
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/* Get the frequency */
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dpll_mpu_opp100.m = am335x_get_efuse_mpu_max_freq(cdev);
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/* Set CORE Frequencies to OPP100 */
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do_setup_dpll(&dpll_core_regs, &dpll_core_opp100);
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/* Set MPU Frequency to what we detected now that voltages are set */
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do_setup_dpll(&dpll_mpu_regs, &dpll_mpu_opp100);
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}
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const struct dpll_params *get_dpll_ddr_params(void)
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{
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return &dpll_ddr;
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}
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static void probe_sdram_size(long size)
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{
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switch (size) {
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case SZ_512M:
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ddr3_emif_reg_data.sdram_config = MT41J256MJT125_EMIF_SDCFG;
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break;
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case SZ_256M:
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ddr3_emif_reg_data.sdram_config = MT41J128MJT125_EMIF_SDCFG;
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break;
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case SZ_128M:
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ddr3_emif_reg_data.sdram_config = MT41J64MJT125_EMIF_SDCFG;
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break;
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default:
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puts("Failed configuring DRAM, resetting...\n\n");
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reset_cpu(0);
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}
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debug("%s: setting DRAM size to %ldM\n", __func__, size >> 20);
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config_ddr(303, &ioregs, &ddr3_data,
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&ddr3_cmd_ctrl_data, &ddr3_emif_reg_data, 0);
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}
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void sdram_init(void)
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{
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long size = SZ_1G;
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do {
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size = size / 2;
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probe_sdram_size(size);
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} while (get_ram_size((void *)CONFIG_SYS_SDRAM_BASE, size) < size);
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return;
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}
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