299 lines
		
	
	
		
			7.6 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			299 lines
		
	
	
		
			7.6 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
// SPDX-License-Identifier: GPL-2.0+
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/*
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 * Copyright (C) 2014 Wandboard
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 * Author: Tungyi Lin <tungyilin1127@gmail.com>
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 *         Richard Hu <hakahu@gmail.com>
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 */
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#include <asm/arch/clock.h>
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#include <asm/arch/imx-regs.h>
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#include <asm/arch/iomux.h>
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#include <asm/arch/mx6-pins.h>
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#include <errno.h>
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#include <asm/gpio.h>
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#include <asm/mach-imx/iomux-v3.h>
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#include <asm/mach-imx/video.h>
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#include <mmc.h>
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#include <fsl_esdhc.h>
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#include <asm/arch/crm_regs.h>
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#include <asm/io.h>
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#include <asm/arch/sys_proto.h>
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#include <spl.h>
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#if defined(CONFIG_SPL_BUILD)
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#include <asm/arch/mx6-ddr.h>
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/*
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 * Driving strength:
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 *   0x30 == 40 Ohm
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 *   0x28 == 48 Ohm
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 */
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#define IMX6DQ_DRIVE_STRENGTH		0x30
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#define IMX6SDL_DRIVE_STRENGTH		0x28
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/* configure MX6Q/DUAL mmdc DDR io registers */
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static struct mx6dq_iomux_ddr_regs mx6dq_ddr_ioregs = {
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	.dram_sdclk_0 = IMX6DQ_DRIVE_STRENGTH,
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	.dram_sdclk_1 = IMX6DQ_DRIVE_STRENGTH,
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	.dram_cas = IMX6DQ_DRIVE_STRENGTH,
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	.dram_ras = IMX6DQ_DRIVE_STRENGTH,
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	.dram_reset = IMX6DQ_DRIVE_STRENGTH,
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	.dram_sdcke0 = IMX6DQ_DRIVE_STRENGTH,
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	.dram_sdcke1 = IMX6DQ_DRIVE_STRENGTH,
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	.dram_sdba2 = 0x00000000,
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	.dram_sdodt0 = IMX6DQ_DRIVE_STRENGTH,
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	.dram_sdodt1 = IMX6DQ_DRIVE_STRENGTH,
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	.dram_sdqs0 = IMX6DQ_DRIVE_STRENGTH,
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	.dram_sdqs1 = IMX6DQ_DRIVE_STRENGTH,
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	.dram_sdqs2 = IMX6DQ_DRIVE_STRENGTH,
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	.dram_sdqs3 = IMX6DQ_DRIVE_STRENGTH,
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	.dram_sdqs4 = IMX6DQ_DRIVE_STRENGTH,
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	.dram_sdqs5 = IMX6DQ_DRIVE_STRENGTH,
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	.dram_sdqs6 = IMX6DQ_DRIVE_STRENGTH,
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	.dram_sdqs7 = IMX6DQ_DRIVE_STRENGTH,
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	.dram_dqm0 = IMX6DQ_DRIVE_STRENGTH,
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	.dram_dqm1 = IMX6DQ_DRIVE_STRENGTH,
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	.dram_dqm2 = IMX6DQ_DRIVE_STRENGTH,
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	.dram_dqm3 = IMX6DQ_DRIVE_STRENGTH,
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	.dram_dqm4 = IMX6DQ_DRIVE_STRENGTH,
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	.dram_dqm5 = IMX6DQ_DRIVE_STRENGTH,
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	.dram_dqm6 = IMX6DQ_DRIVE_STRENGTH,
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	.dram_dqm7 = IMX6DQ_DRIVE_STRENGTH,
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};
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/* configure MX6Q/DUAL mmdc GRP io registers */
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static struct mx6dq_iomux_grp_regs mx6dq_grp_ioregs = {
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	.grp_ddr_type = 0x000c0000,
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	.grp_ddrmode_ctl = 0x00020000,
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	.grp_ddrpke = 0x00000000,
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	.grp_addds = IMX6DQ_DRIVE_STRENGTH,
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	.grp_ctlds = IMX6DQ_DRIVE_STRENGTH,
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	.grp_ddrmode = 0x00020000,
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	.grp_b0ds = IMX6DQ_DRIVE_STRENGTH,
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	.grp_b1ds = IMX6DQ_DRIVE_STRENGTH,
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	.grp_b2ds = IMX6DQ_DRIVE_STRENGTH,
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	.grp_b3ds = IMX6DQ_DRIVE_STRENGTH,
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	.grp_b4ds = IMX6DQ_DRIVE_STRENGTH,
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	.grp_b5ds = IMX6DQ_DRIVE_STRENGTH,
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	.grp_b6ds = IMX6DQ_DRIVE_STRENGTH,
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	.grp_b7ds = IMX6DQ_DRIVE_STRENGTH,
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};
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/* configure MX6SOLO/DUALLITE mmdc DDR io registers */
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struct mx6sdl_iomux_ddr_regs mx6sdl_ddr_ioregs = {
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	.dram_sdclk_0 = IMX6SDL_DRIVE_STRENGTH,
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	.dram_sdclk_1 = IMX6SDL_DRIVE_STRENGTH,
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	.dram_cas = IMX6SDL_DRIVE_STRENGTH,
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	.dram_ras = IMX6SDL_DRIVE_STRENGTH,
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	.dram_reset = IMX6SDL_DRIVE_STRENGTH,
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	.dram_sdcke0 = IMX6SDL_DRIVE_STRENGTH,
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	.dram_sdcke1 = IMX6SDL_DRIVE_STRENGTH,
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	.dram_sdba2 = 0x00000000,
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	.dram_sdodt0 = IMX6SDL_DRIVE_STRENGTH,
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	.dram_sdodt1 = IMX6SDL_DRIVE_STRENGTH,
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	.dram_sdqs0 = IMX6SDL_DRIVE_STRENGTH,
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	.dram_sdqs1 = IMX6SDL_DRIVE_STRENGTH,
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	.dram_sdqs2 = IMX6SDL_DRIVE_STRENGTH,
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	.dram_sdqs3 = IMX6SDL_DRIVE_STRENGTH,
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	.dram_sdqs4 = IMX6SDL_DRIVE_STRENGTH,
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	.dram_sdqs5 = IMX6SDL_DRIVE_STRENGTH,
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	.dram_sdqs6 = IMX6SDL_DRIVE_STRENGTH,
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	.dram_sdqs7 = IMX6SDL_DRIVE_STRENGTH,
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	.dram_dqm0 = IMX6SDL_DRIVE_STRENGTH,
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	.dram_dqm1 = IMX6SDL_DRIVE_STRENGTH,
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	.dram_dqm2 = IMX6SDL_DRIVE_STRENGTH,
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	.dram_dqm3 = IMX6SDL_DRIVE_STRENGTH,
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	.dram_dqm4 = IMX6SDL_DRIVE_STRENGTH,
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	.dram_dqm5 = IMX6SDL_DRIVE_STRENGTH,
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	.dram_dqm6 = IMX6SDL_DRIVE_STRENGTH,
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	.dram_dqm7 = IMX6SDL_DRIVE_STRENGTH,
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};
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/* configure MX6SOLO/DUALLITE mmdc GRP io registers */
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struct mx6sdl_iomux_grp_regs mx6sdl_grp_ioregs = {
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	.grp_ddr_type = 0x000c0000,
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	.grp_ddrmode_ctl = 0x00020000,
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	.grp_ddrpke = 0x00000000,
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	.grp_addds = IMX6SDL_DRIVE_STRENGTH,
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	.grp_ctlds = IMX6SDL_DRIVE_STRENGTH,
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	.grp_ddrmode = 0x00020000,
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	.grp_b0ds = IMX6SDL_DRIVE_STRENGTH,
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	.grp_b1ds = IMX6SDL_DRIVE_STRENGTH,
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	.grp_b2ds = IMX6SDL_DRIVE_STRENGTH,
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	.grp_b3ds = IMX6SDL_DRIVE_STRENGTH,
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	.grp_b4ds = IMX6SDL_DRIVE_STRENGTH,
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	.grp_b5ds = IMX6SDL_DRIVE_STRENGTH,
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	.grp_b6ds = IMX6SDL_DRIVE_STRENGTH,
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	.grp_b7ds = IMX6SDL_DRIVE_STRENGTH,
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};
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/* H5T04G63AFR-PB */
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static struct mx6_ddr3_cfg h5t04g63afr = {
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	.mem_speed = 1600,
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	.density = 4,
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	.width = 16,
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	.banks = 8,
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	.rowaddr = 15,
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	.coladdr = 10,
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	.pagesz = 2,
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	.trcd = 1375,
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	.trcmin = 4875,
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	.trasmin = 3500,
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};
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/* H5TQ2G63DFR-H9 */
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static struct mx6_ddr3_cfg h5tq2g63dfr = {
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	.mem_speed = 1333,
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	.density = 2,
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	.width = 16,
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	.banks = 8,
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	.rowaddr = 14,
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	.coladdr = 10,
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	.pagesz = 2,
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	.trcd = 1350,
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	.trcmin = 4950,
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	.trasmin = 3600,
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};
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static struct mx6_mmdc_calibration mx6q_2g_mmdc_calib = {
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	.p0_mpwldectrl0 = 0x001f001f,
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	.p0_mpwldectrl1 = 0x001f001f,
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	.p1_mpwldectrl0 = 0x001f001f,
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	.p1_mpwldectrl1 = 0x001f001f,
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	.p0_mpdgctrl0 = 0x4301030d,
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	.p0_mpdgctrl1 = 0x03020277,
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	.p1_mpdgctrl0 = 0x4300030a,
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	.p1_mpdgctrl1 = 0x02780248,
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	.p0_mprddlctl = 0x4536393b,
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	.p1_mprddlctl = 0x36353441,
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	.p0_mpwrdlctl = 0x41414743,
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	.p1_mpwrdlctl = 0x462f453f,
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};
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/* DDR 64bit 2GB */
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static struct mx6_ddr_sysinfo mem_q = {
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	.dsize		= 2,
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	.cs1_mirror	= 0,
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	/* config for full 4GB range so that get_mem_size() works */
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	.cs_density	= 32,
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	.ncs		= 1,
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	.bi_on		= 1,
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	.rtt_nom	= 1,
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	.rtt_wr		= 0,
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	.ralat		= 5,
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	.walat		= 0,
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	.mif3_mode	= 3,
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	.rst_to_cke	= 0x23,
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	.sde_to_rst	= 0x10,
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};
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static struct mx6_mmdc_calibration mx6dl_1g_mmdc_calib = {
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	.p0_mpwldectrl0 = 0x001f001f,
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	.p0_mpwldectrl1 = 0x001f001f,
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	.p1_mpwldectrl0 = 0x001f001f,
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	.p1_mpwldectrl1 = 0x001f001f,
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	.p0_mpdgctrl0 = 0x420e020e,
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	.p0_mpdgctrl1 = 0x02000200,
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	.p1_mpdgctrl0 = 0x42020202,
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	.p1_mpdgctrl1 = 0x01720172,
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	.p0_mprddlctl = 0x494c4f4c,
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	.p1_mprddlctl = 0x4a4c4c49,
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	.p0_mpwrdlctl = 0x3f3f3133,
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	.p1_mpwrdlctl = 0x39373f2e,
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};
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static struct mx6_mmdc_calibration mx6s_512m_mmdc_calib = {
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	.p0_mpwldectrl0 = 0x0040003c,
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	.p0_mpwldectrl1 = 0x0032003e,
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	.p0_mpdgctrl0 = 0x42350231,
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	.p0_mpdgctrl1 = 0x021a0218,
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	.p0_mprddlctl = 0x4b4b4e49,
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	.p0_mpwrdlctl = 0x3f3f3035,
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};
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/* DDR 64bit 1GB */
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static struct mx6_ddr_sysinfo mem_dl = {
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	.dsize		= 2,
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	.cs1_mirror	= 0,
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	/* config for full 4GB range so that get_mem_size() works */
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	.cs_density	= 32,
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	.ncs		= 1,
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	.bi_on		= 1,
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	.rtt_nom	= 1,
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	.rtt_wr		= 0,
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	.ralat		= 5,
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	.walat		= 0,
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	.mif3_mode	= 3,
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	.rst_to_cke	= 0x23,
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	.sde_to_rst	= 0x10,
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};
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/* DDR 32bit 512MB */
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static struct mx6_ddr_sysinfo mem_s = {
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	.dsize		= 1,
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	.cs1_mirror	= 0,
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	/* config for full 4GB range so that get_mem_size() works */
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	.cs_density	= 32,
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	.ncs		= 1,
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	.bi_on		= 1,
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	.rtt_nom	= 1,
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	.rtt_wr		= 0,
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	.ralat		= 5,
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	.walat		= 0,
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	.mif3_mode	= 3,
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	.rst_to_cke	= 0x23,
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	.sde_to_rst	= 0x10,
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};
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static void ccgr_init(void)
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{
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	struct mxc_ccm_reg *ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
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	writel(0x00C03F3F, &ccm->CCGR0);
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	writel(0x0030FC03, &ccm->CCGR1);
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	writel(0x0FFFC000, &ccm->CCGR2);
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	writel(0x3FF00000, &ccm->CCGR3);
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	writel(0x00FFF300, &ccm->CCGR4);
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	writel(0x0F0000C3, &ccm->CCGR5);
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	writel(0x000003FF, &ccm->CCGR6);
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}
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static void spl_dram_init(void)
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{
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	if (is_cpu_type(MXC_CPU_MX6SOLO)) {
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		mx6sdl_dram_iocfg(32, &mx6sdl_ddr_ioregs, &mx6sdl_grp_ioregs);
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		mx6_dram_cfg(&mem_s, &mx6s_512m_mmdc_calib, &h5tq2g63dfr);
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	} else if (is_cpu_type(MXC_CPU_MX6DL)) {
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		mx6sdl_dram_iocfg(64, &mx6sdl_ddr_ioregs, &mx6sdl_grp_ioregs);
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		mx6_dram_cfg(&mem_dl, &mx6dl_1g_mmdc_calib, &h5tq2g63dfr);
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	} else if (is_cpu_type(MXC_CPU_MX6Q)) {
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		mx6dq_dram_iocfg(64, &mx6dq_ddr_ioregs, &mx6dq_grp_ioregs);
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		mx6_dram_cfg(&mem_q, &mx6q_2g_mmdc_calib, &h5t04g63afr);
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	}
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	udelay(100);
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}
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void board_init_f(ulong dummy)
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{
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	ccgr_init();
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	/* setup AIPS and disable watchdog */
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	arch_cpu_init();
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	gpr_init();
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	/* iomux */
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	board_early_init_f();
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	/* setup GP timer */
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	timer_init();
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	/* UART clocks enabled and gd valid - init serial console */
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	preloader_console_init();
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	/* DDR initialization */
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	spl_dram_init();
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}
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#endif
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