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https://github.com/brain-hackers/u-boot-brain
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8efc243741
Because KS2 u-boot works in 32 bit address space the existing ram_size global data field cannot be used. The maximum, which the get_ram_size() can detect is 2GB only. The ft_board_setup() needs the actual ddr3 size to fix up dtb. This commit introduces the ddr3_get_size() which uses SPD data to calculate the ddr3 size. This function replaces the "ddr3_size" environment variable, which was used to get the SODIMM size. For platforms, which don't have SODIMM with SPD and ddr3 is populated to a board a simple ddr3_get_size function that returns ddr3 size has to be implemented. See hardware-k2l.h Signed-off-by: Vitaly Andrianov <vitalya@ti.com> Signed-off-by: Nishanth Menon <nm@ti.com> Reviewed-by: Tom Rini <trini@konsulko.com>
72 lines
1.5 KiB
C
72 lines
1.5 KiB
C
/*
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* DDR3
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*
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* (C) Copyright 2014
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* Texas Instruments Incorporated, <www.ti.com>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#ifndef _DDR3_H_
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#define _DDR3_H_
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#include <asm/arch/hardware.h>
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struct ddr3_phy_config {
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unsigned int pllcr;
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unsigned int pgcr1_mask;
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unsigned int pgcr1_val;
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unsigned int ptr0;
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unsigned int ptr1;
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unsigned int ptr2;
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unsigned int ptr3;
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unsigned int ptr4;
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unsigned int dcr_mask;
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unsigned int dcr_val;
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unsigned int dtpr0;
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unsigned int dtpr1;
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unsigned int dtpr2;
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unsigned int mr0;
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unsigned int mr1;
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unsigned int mr2;
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unsigned int dtcr;
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unsigned int pgcr2;
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unsigned int zq0cr1;
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unsigned int zq1cr1;
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unsigned int zq2cr1;
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unsigned int pir_v1;
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unsigned int pir_v2;
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};
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struct ddr3_emif_config {
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unsigned int sdcfg;
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unsigned int sdtim1;
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unsigned int sdtim2;
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unsigned int sdtim3;
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unsigned int sdtim4;
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unsigned int zqcfg;
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unsigned int sdrfc;
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};
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struct ddr3_spd_cb {
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char dimm_name[32];
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struct ddr3_phy_config phy_cfg;
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struct ddr3_emif_config emif_cfg;
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unsigned int ddrspdclock;
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int ddr_size_gbyte;
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};
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u32 ddr3_init(void);
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void ddr3_reset_ddrphy(void);
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void ddr3_init_ecc(u32 base, u32 ddr3_size);
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void ddr3_disable_ecc(u32 base);
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void ddr3_check_ecc_int(u32 base);
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int ddr3_ecc_support_rmw(u32 base);
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void ddr3_err_reset_workaround(void);
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void ddr3_enable_ecc(u32 base, int test);
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void ddr3_init_ddrphy(u32 base, struct ddr3_phy_config *phy_cfg);
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void ddr3_init_ddremif(u32 base, struct ddr3_emif_config *emif_cfg);
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int ddr3_get_size(void);
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#endif
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