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https://github.com/brain-hackers/u-boot-brain
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132 lines
4.1 KiB
C
132 lines
4.1 KiB
C
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/*
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* Timing and Organization details of the Elpida parts used in OMAP4
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* SDPs and Panda
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*
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* (C) Copyright 2010
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* Texas Instruments, <www.ti.com>
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*
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* Aneesh V <aneesh@ti.com>
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <asm/arch/emif.h>
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#include <asm/arch/sys_proto.h>
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/*
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* This file provides details of the LPDDR2 SDRAM parts used on OMAP4430
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* SDP and Panda. Since the parts used and geometry are identical for
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* SDP and Panda for a given OMAP4 revision, this information is kept
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* here instead of being in board directory. However the key functions
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* exported are weakly linked so that they can be over-ridden in the board
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* directory if there is a OMAP4 board in the future that uses a different
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* memory device or geometry.
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*
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* For any new board with different memory devices over-ride one or more
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* of the following functions as per the CONFIG flags you intend to enable:
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* - emif_get_reg_dump()
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* - emif_get_dmm_regs()
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* - emif_get_device_details()
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* - emif_get_device_timings()
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*/
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static const struct emif_regs emif_regs_elpida_200_mhz_2cs = {
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.sdram_config_init = 0x80000eb9,
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.sdram_config = 0x80001ab9,
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.ref_ctrl = 0x0000030c,
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.sdram_tim1 = 0x08648311,
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.sdram_tim2 = 0x101b06ca,
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.sdram_tim3 = 0x0048a19f,
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.read_idle_ctrl = 0x000501ff,
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.zq_config = 0x500b3214,
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.temp_alert_config = 0xd8016893,
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.emif_ddr_phy_ctlr_1_init = 0x049ffff5,
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.emif_ddr_phy_ctlr_1 = 0x049ff808
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};
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static const struct emif_regs emif_regs_elpida_380_mhz_1cs = {
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.sdram_config_init = 0x80000eb1,
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.sdram_config = 0x80001ab1,
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.ref_ctrl = 0x000005cd,
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.sdram_tim1 = 0x10cb0622,
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.sdram_tim2 = 0x20350d52,
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.sdram_tim3 = 0x00b1431f,
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.read_idle_ctrl = 0x000501ff,
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.zq_config = 0x500b3214,
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.temp_alert_config = 0x58016893,
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.emif_ddr_phy_ctlr_1_init = 0x049ffff5,
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.emif_ddr_phy_ctlr_1 = 0x049ff418
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};
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const struct emif_regs emif_regs_elpida_400_mhz_2cs = {
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.sdram_config_init = 0x80000eb9,
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.sdram_config = 0x80001ab9,
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.ref_ctrl = 0x00000618,
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.sdram_tim1 = 0x10eb0662,
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.sdram_tim2 = 0x20370dd2,
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.sdram_tim3 = 0x00b1c33f,
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.read_idle_ctrl = 0x000501ff,
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.zq_config = 0xd00b3214,
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.temp_alert_config = 0xd8016893,
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.emif_ddr_phy_ctlr_1_init = 0x049ffff5,
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.emif_ddr_phy_ctlr_1 = 0x049ff418
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};
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const struct dmm_lisa_map_regs lisa_map_2G_x_1_x_2 = {
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.dmm_lisa_map_0 = 0xFF020100,
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.dmm_lisa_map_1 = 0,
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.dmm_lisa_map_2 = 0,
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.dmm_lisa_map_3 = 0x80540300
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};
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const struct dmm_lisa_map_regs lisa_map_2G_x_2_x_2 = {
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.dmm_lisa_map_0 = 0xFF020100,
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.dmm_lisa_map_1 = 0,
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.dmm_lisa_map_2 = 0,
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.dmm_lisa_map_3 = 0x80640300
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};
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static void emif_get_reg_dump_sdp(u32 emif_nr, const struct emif_regs **regs)
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{
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u32 omap4_rev = omap_revision();
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/* Same devices and geometry on both EMIFs */
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if (omap4_rev == OMAP4430_ES1_0)
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*regs = &emif_regs_elpida_380_mhz_1cs;
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else if (omap4_rev == OMAP4430_ES2_0)
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*regs = &emif_regs_elpida_200_mhz_2cs;
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else
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*regs = &emif_regs_elpida_400_mhz_2cs;
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}
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void emif_get_reg_dump(u32 emif_nr, const struct emif_regs **regs)
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__attribute__((weak, alias("emif_get_reg_dump_sdp")));
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static void emif_get_dmm_regs_sdp(const struct dmm_lisa_map_regs
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**dmm_lisa_regs)
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{
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u32 omap_rev = omap_revision();
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if (omap_rev == OMAP4430_ES1_0)
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*dmm_lisa_regs = &lisa_map_2G_x_1_x_2;
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else
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*dmm_lisa_regs = &lisa_map_2G_x_2_x_2;
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}
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void emif_get_dmm_regs(const struct dmm_lisa_map_regs **dmm_lisa_regs)
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__attribute__((weak, alias("emif_get_dmm_regs_sdp")));
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