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https://github.com/brain-hackers/u-boot-brain
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54d022e76c
When core power domain hits oswr, then DDR3 memories does not come back while resuming. This is because when EMIF registers are lost, then the controller takes care of copying the values from the shadow registers. If the shadow registers are not updated with the right values, then this results in incorrect settings while resuming. So updating the shadow registers with the corresponding status registers here during the boot. Signed-off-by: Sricharan R <r.sricharan@ti.com>
329 lines
8.3 KiB
C
329 lines
8.3 KiB
C
/*
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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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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <asm/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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#ifdef CONFIG_SYS_EMIF_PRECALCULATED_TIMING_REGS
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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_1cs = {
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.sdram_config_init = 0x80800eb2,
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.sdram_config = 0x80801ab2,
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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 = 0x500b3215,
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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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.is_ma_present = 0x0
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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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.is_ma_present = 0x0
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};
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const struct dmm_lisa_map_regs ma_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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.is_ma_present = 0x1
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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 if (omap4_rev == OMAP4430_ES2_3)
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*regs = &emif_regs_elpida_400_mhz_1cs;
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else if (omap4_rev < OMAP4470_ES1_0)
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*regs = &emif_regs_elpida_400_mhz_2cs;
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else
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*regs = &emif_regs_elpida_400_mhz_1cs;
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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 if (omap_rev == OMAP4430_ES2_3)
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*dmm_lisa_regs = &lisa_map_2G_x_2_x_2;
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else if (omap_rev < OMAP4460_ES1_0)
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*dmm_lisa_regs = &lisa_map_2G_x_2_x_2;
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else
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*dmm_lisa_regs = &ma_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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#else
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static const struct lpddr2_device_details elpida_2G_S4_details = {
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.type = LPDDR2_TYPE_S4,
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.density = LPDDR2_DENSITY_2Gb,
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.io_width = LPDDR2_IO_WIDTH_32,
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.manufacturer = LPDDR2_MANUFACTURER_ELPIDA
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};
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static const struct lpddr2_device_details elpida_4G_S4_details = {
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.type = LPDDR2_TYPE_S4,
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.density = LPDDR2_DENSITY_4Gb,
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.io_width = LPDDR2_IO_WIDTH_32,
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.manufacturer = LPDDR2_MANUFACTURER_ELPIDA
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};
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struct lpddr2_device_details *emif_get_device_details_sdp(u32 emif_nr, u8 cs,
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struct lpddr2_device_details *lpddr2_dev_details)
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{
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u32 omap_rev = omap_revision();
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/* EMIF1 & EMIF2 have identical configuration */
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if (((omap_rev == OMAP4430_ES1_0) || (omap_rev == OMAP4470_ES1_0))
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&& (cs == CS1)) {
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/* Nothing connected on CS1 for 4430/4470 ES1.0 */
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return NULL;
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} else if (omap_rev < OMAP4470_ES1_0) {
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/* In all other 4430/4460 cases Elpida 2G device */
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*lpddr2_dev_details = elpida_2G_S4_details;
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} else {
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/* 4470: 4G device */
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*lpddr2_dev_details = elpida_4G_S4_details;
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}
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return lpddr2_dev_details;
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}
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struct lpddr2_device_details *emif_get_device_details(u32 emif_nr, u8 cs,
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struct lpddr2_device_details *lpddr2_dev_details)
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__attribute__((weak, alias("emif_get_device_details_sdp")));
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#endif /* CONFIG_SYS_EMIF_PRECALCULATED_TIMING_REGS */
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#ifndef CONFIG_SYS_DEFAULT_LPDDR2_TIMINGS
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static const struct lpddr2_ac_timings timings_elpida_400_mhz = {
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.max_freq = 400000000,
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.RL = 6,
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.tRPab = 21,
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.tRCD = 18,
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.tWR = 15,
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.tRASmin = 42,
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.tRRD = 10,
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.tWTRx2 = 15,
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.tXSR = 140,
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.tXPx2 = 15,
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.tRFCab = 130,
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.tRTPx2 = 15,
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.tCKE = 3,
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.tCKESR = 15,
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.tZQCS = 90,
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.tZQCL = 360,
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.tZQINIT = 1000,
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.tDQSCKMAXx2 = 11,
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.tRASmax = 70,
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.tFAW = 50
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};
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static const struct lpddr2_ac_timings timings_elpida_333_mhz = {
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.max_freq = 333000000,
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.RL = 5,
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.tRPab = 21,
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.tRCD = 18,
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.tWR = 15,
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.tRASmin = 42,
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.tRRD = 10,
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.tWTRx2 = 15,
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.tXSR = 140,
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.tXPx2 = 15,
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.tRFCab = 130,
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.tRTPx2 = 15,
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.tCKE = 3,
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.tCKESR = 15,
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.tZQCS = 90,
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.tZQCL = 360,
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.tZQINIT = 1000,
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.tDQSCKMAXx2 = 11,
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.tRASmax = 70,
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.tFAW = 50
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};
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static const struct lpddr2_ac_timings timings_elpida_200_mhz = {
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.max_freq = 200000000,
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.RL = 3,
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.tRPab = 21,
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.tRCD = 18,
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.tWR = 15,
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.tRASmin = 42,
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.tRRD = 10,
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.tWTRx2 = 20,
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.tXSR = 140,
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.tXPx2 = 15,
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.tRFCab = 130,
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.tRTPx2 = 15,
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.tCKE = 3,
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.tCKESR = 15,
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.tZQCS = 90,
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.tZQCL = 360,
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.tZQINIT = 1000,
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.tDQSCKMAXx2 = 11,
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.tRASmax = 70,
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.tFAW = 50
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};
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static const struct lpddr2_min_tck min_tck_elpida = {
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.tRL = 3,
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.tRP_AB = 3,
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.tRCD = 3,
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.tWR = 3,
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.tRAS_MIN = 3,
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.tRRD = 2,
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.tWTR = 2,
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.tXP = 2,
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.tRTP = 2,
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.tCKE = 3,
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.tCKESR = 3,
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.tFAW = 8
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};
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static const struct lpddr2_ac_timings *elpida_ac_timings[MAX_NUM_SPEEDBINS] = {
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&timings_elpida_200_mhz,
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&timings_elpida_333_mhz,
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&timings_elpida_400_mhz
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};
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static const struct lpddr2_device_timings elpida_2G_S4_timings = {
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.ac_timings = elpida_ac_timings,
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.min_tck = &min_tck_elpida,
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};
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void emif_get_device_timings_sdp(u32 emif_nr,
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const struct lpddr2_device_timings **cs0_device_timings,
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const struct lpddr2_device_timings **cs1_device_timings)
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{
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u32 omap_rev = omap_revision();
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/* Identical devices on EMIF1 & EMIF2 */
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*cs0_device_timings = &elpida_2G_S4_timings;
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if ((omap_rev == OMAP4430_ES1_0) || (omap_rev == OMAP4470_ES1_0))
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*cs1_device_timings = NULL;
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else
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*cs1_device_timings = &elpida_2G_S4_timings;
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}
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void emif_get_device_timings(u32 emif_nr,
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const struct lpddr2_device_timings **cs0_device_timings,
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const struct lpddr2_device_timings **cs1_device_timings)
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__attribute__((weak, alias("emif_get_device_timings_sdp")));
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#endif /* CONFIG_SYS_DEFAULT_LPDDR2_TIMINGS */
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const struct lpddr2_mr_regs mr_regs = {
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.mr1 = MR1_BL_8_BT_SEQ_WRAP_EN_NWR_3,
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.mr2 = 0x4,
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.mr3 = -1,
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.mr10 = MR10_ZQ_ZQINIT,
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.mr16 = MR16_REF_FULL_ARRAY
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};
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void get_lpddr2_mr_regs(const struct lpddr2_mr_regs **regs)
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{
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*regs = &mr_regs;
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}
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__weak const struct read_write_regs *get_bug_regs(u32 *iterations)
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{
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return 0;
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}
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