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author | Tom Rini <trini@konsulko.com> | 2016-11-07 21:34:54 -0500 |
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committer | Tom Rini <trini@konsulko.com> | 2016-11-21 14:07:29 -0500 |
commit | 983e37007da506e8145f9b3a9e1dce5c11116fb0 (patch) | |
tree | c1d5449e1c56e17f22bb4f75b6f11336abca41a4 /arch/arm/mach-omap2/omap4/sdram_elpida.c | |
parent | 272686eb7576c02df4616bcf893fde993e7ba57e (diff) | |
download | u-boot-imx-983e37007da506e8145f9b3a9e1dce5c11116fb0.zip u-boot-imx-983e37007da506e8145f9b3a9e1dce5c11116fb0.tar.gz u-boot-imx-983e37007da506e8145f9b3a9e1dce5c11116fb0.tar.bz2 |
arm: Introduce arch/arm/mach-omap2 for OMAP2 derivative platforms
This moves what was in arch/arm/cpu/armv7/omap-common in to
arch/arm/mach-omap2 and moves
arch/arm/cpu/armv7/{am33xx,omap3,omap4,omap5} in to arch/arm/mach-omap2
as subdirectories. All refernces to the former locations are updated to
the current locations. For the logic to decide what our outputs are,
consolidate the tests into a single config.mk rather than including 4.
Signed-off-by: Tom Rini <trini@konsulko.com>
Diffstat (limited to 'arch/arm/mach-omap2/omap4/sdram_elpida.c')
-rw-r--r-- | arch/arm/mach-omap2/omap4/sdram_elpida.c | 324 |
1 files changed, 324 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/omap4/sdram_elpida.c b/arch/arm/mach-omap2/omap4/sdram_elpida.c new file mode 100644 index 0000000..78b4f09 --- /dev/null +++ b/arch/arm/mach-omap2/omap4/sdram_elpida.c @@ -0,0 +1,324 @@ +/* + * Timing and Organization details of the Elpida parts used in OMAP4 + * SDPs and Panda + * + * (C) Copyright 2010 + * Texas Instruments, <www.ti.com> + * + * Aneesh V <aneesh@ti.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <asm/emif.h> +#include <asm/arch/sys_proto.h> + +/* + * This file provides details of the LPDDR2 SDRAM parts used on OMAP4430 + * SDP and Panda. Since the parts used and geometry are identical for + * SDP and Panda for a given OMAP4 revision, this information is kept + * here instead of being in board directory. However the key functions + * exported are weakly linked so that they can be over-ridden in the board + * directory if there is a OMAP4 board in the future that uses a different + * memory device or geometry. + * + * For any new board with different memory devices over-ride one or more + * of the following functions as per the CONFIG flags you intend to enable: + * - emif_get_reg_dump() + * - emif_get_dmm_regs() + * - emif_get_device_details() + * - emif_get_device_timings() + */ + +#ifdef CONFIG_SYS_EMIF_PRECALCULATED_TIMING_REGS + +const struct emif_regs emif_regs_elpida_200_mhz_2cs = { + .sdram_config_init = 0x80000eb9, + .sdram_config = 0x80001ab9, + .ref_ctrl = 0x0000030c, + .sdram_tim1 = 0x08648311, + .sdram_tim2 = 0x101b06ca, + .sdram_tim3 = 0x0048a19f, + .read_idle_ctrl = 0x000501ff, + .zq_config = 0x500b3214, + .temp_alert_config = 0xd8016893, + .emif_ddr_phy_ctlr_1_init = 0x049ffff5, + .emif_ddr_phy_ctlr_1 = 0x049ff808 +}; + +const struct emif_regs emif_regs_elpida_380_mhz_1cs = { + .sdram_config_init = 0x80000eb1, + .sdram_config = 0x80001ab1, + .ref_ctrl = 0x000005cd, + .sdram_tim1 = 0x10cb0622, + .sdram_tim2 = 0x20350d52, + .sdram_tim3 = 0x00b1431f, + .read_idle_ctrl = 0x000501ff, + .zq_config = 0x500b3214, + .temp_alert_config = 0x58016893, + .emif_ddr_phy_ctlr_1_init = 0x049ffff5, + .emif_ddr_phy_ctlr_1 = 0x049ff418 +}; + +const struct emif_regs emif_regs_elpida_400_mhz_1cs = { + .sdram_config_init = 0x80800eb2, + .sdram_config = 0x80801ab2, + .ref_ctrl = 0x00000618, + .sdram_tim1 = 0x10eb0662, + .sdram_tim2 = 0x20370dd2, + .sdram_tim3 = 0x00b1c33f, + .read_idle_ctrl = 0x000501ff, + .zq_config = 0x500b3215, + .temp_alert_config = 0x58016893, + .emif_ddr_phy_ctlr_1_init = 0x049ffff5, + .emif_ddr_phy_ctlr_1 = 0x049ff418 +}; + +const struct emif_regs emif_regs_elpida_400_mhz_2cs = { + .sdram_config_init = 0x80000eb9, + .sdram_config = 0x80001ab9, + .ref_ctrl = 0x00000618, + .sdram_tim1 = 0x10eb0662, + .sdram_tim2 = 0x20370dd2, + .sdram_tim3 = 0x00b1c33f, + .read_idle_ctrl = 0x000501ff, + .zq_config = 0xd00b3214, + .temp_alert_config = 0xd8016893, + .emif_ddr_phy_ctlr_1_init = 0x049ffff5, + .emif_ddr_phy_ctlr_1 = 0x049ff418 +}; + +const struct dmm_lisa_map_regs lisa_map_2G_x_1_x_2 = { + .dmm_lisa_map_0 = 0xFF020100, + .dmm_lisa_map_1 = 0, + .dmm_lisa_map_2 = 0, + .dmm_lisa_map_3 = 0x80540300, + .is_ma_present = 0x0 +}; + +const struct dmm_lisa_map_regs lisa_map_2G_x_2_x_2 = { + .dmm_lisa_map_0 = 0xFF020100, + .dmm_lisa_map_1 = 0, + .dmm_lisa_map_2 = 0, + .dmm_lisa_map_3 = 0x80640300, + .is_ma_present = 0x0 +}; + +const struct dmm_lisa_map_regs ma_lisa_map_2G_x_2_x_2 = { + .dmm_lisa_map_0 = 0xFF020100, + .dmm_lisa_map_1 = 0, + .dmm_lisa_map_2 = 0, + .dmm_lisa_map_3 = 0x80640300, + .is_ma_present = 0x1 +}; + +static void emif_get_reg_dump_sdp(u32 emif_nr, const struct emif_regs **regs) +{ + u32 omap4_rev = omap_revision(); + + /* Same devices and geometry on both EMIFs */ + if (omap4_rev == OMAP4430_ES1_0) + *regs = &emif_regs_elpida_380_mhz_1cs; + else if (omap4_rev == OMAP4430_ES2_0) + *regs = &emif_regs_elpida_200_mhz_2cs; + else if (omap4_rev < OMAP4470_ES1_0) + *regs = &emif_regs_elpida_400_mhz_2cs; + else + *regs = &emif_regs_elpida_400_mhz_1cs; +} +void emif_get_reg_dump(u32 emif_nr, const struct emif_regs **regs) + __attribute__((weak, alias("emif_get_reg_dump_sdp"))); + +static void emif_get_dmm_regs_sdp(const struct dmm_lisa_map_regs + **dmm_lisa_regs) +{ + u32 omap_rev = omap_revision(); + + if (omap_rev == OMAP4430_ES1_0) + *dmm_lisa_regs = &lisa_map_2G_x_1_x_2; + else if (omap_rev < OMAP4460_ES1_0) + *dmm_lisa_regs = &lisa_map_2G_x_2_x_2; + else + *dmm_lisa_regs = &ma_lisa_map_2G_x_2_x_2; +} + +void emif_get_dmm_regs(const struct dmm_lisa_map_regs **dmm_lisa_regs) + __attribute__((weak, alias("emif_get_dmm_regs_sdp"))); + +#else + +const struct lpddr2_device_details elpida_2G_S4_details = { + .type = LPDDR2_TYPE_S4, + .density = LPDDR2_DENSITY_2Gb, + .io_width = LPDDR2_IO_WIDTH_32, + .manufacturer = LPDDR2_MANUFACTURER_ELPIDA +}; + +const struct lpddr2_device_details elpida_4G_S4_details = { + .type = LPDDR2_TYPE_S4, + .density = LPDDR2_DENSITY_4Gb, + .io_width = LPDDR2_IO_WIDTH_32, + .manufacturer = LPDDR2_MANUFACTURER_ELPIDA +}; + +struct lpddr2_device_details *emif_get_device_details_sdp(u32 emif_nr, u8 cs, + struct lpddr2_device_details *lpddr2_dev_details) +{ + u32 omap_rev = omap_revision(); + + /* EMIF1 & EMIF2 have identical configuration */ + if (((omap_rev == OMAP4430_ES1_0) || (omap_rev == OMAP4470_ES1_0)) + && (cs == CS1)) { + /* Nothing connected on CS1 for 4430/4470 ES1.0 */ + return NULL; + } else if (omap_rev < OMAP4470_ES1_0) { + /* In all other 4430/4460 cases Elpida 2G device */ + *lpddr2_dev_details = elpida_2G_S4_details; + } else { + /* 4470: 4G device */ + *lpddr2_dev_details = elpida_4G_S4_details; + } + return lpddr2_dev_details; +} + +struct lpddr2_device_details *emif_get_device_details(u32 emif_nr, u8 cs, + struct lpddr2_device_details *lpddr2_dev_details) + __attribute__((weak, alias("emif_get_device_details_sdp"))); + +#endif /* CONFIG_SYS_EMIF_PRECALCULATED_TIMING_REGS */ + +#ifndef CONFIG_SYS_DEFAULT_LPDDR2_TIMINGS +static const struct lpddr2_ac_timings timings_elpida_400_mhz = { + .max_freq = 400000000, + .RL = 6, + .tRPab = 21, + .tRCD = 18, + .tWR = 15, + .tRASmin = 42, + .tRRD = 10, + .tWTRx2 = 15, + .tXSR = 140, + .tXPx2 = 15, + .tRFCab = 130, + .tRTPx2 = 15, + .tCKE = 3, + .tCKESR = 15, + .tZQCS = 90, + .tZQCL = 360, + .tZQINIT = 1000, + .tDQSCKMAXx2 = 11, + .tRASmax = 70, + .tFAW = 50 +}; + +static const struct lpddr2_ac_timings timings_elpida_333_mhz = { + .max_freq = 333000000, + .RL = 5, + .tRPab = 21, + .tRCD = 18, + .tWR = 15, + .tRASmin = 42, + .tRRD = 10, + .tWTRx2 = 15, + .tXSR = 140, + .tXPx2 = 15, + .tRFCab = 130, + .tRTPx2 = 15, + .tCKE = 3, + .tCKESR = 15, + .tZQCS = 90, + .tZQCL = 360, + .tZQINIT = 1000, + .tDQSCKMAXx2 = 11, + .tRASmax = 70, + .tFAW = 50 +}; + +static const struct lpddr2_ac_timings timings_elpida_200_mhz = { + .max_freq = 200000000, + .RL = 3, + .tRPab = 21, + .tRCD = 18, + .tWR = 15, + .tRASmin = 42, + .tRRD = 10, + .tWTRx2 = 20, + .tXSR = 140, + .tXPx2 = 15, + .tRFCab = 130, + .tRTPx2 = 15, + .tCKE = 3, + .tCKESR = 15, + .tZQCS = 90, + .tZQCL = 360, + .tZQINIT = 1000, + .tDQSCKMAXx2 = 11, + .tRASmax = 70, + .tFAW = 50 +}; + +static const struct lpddr2_min_tck min_tck_elpida = { + .tRL = 3, + .tRP_AB = 3, + .tRCD = 3, + .tWR = 3, + .tRAS_MIN = 3, + .tRRD = 2, + .tWTR = 2, + .tXP = 2, + .tRTP = 2, + .tCKE = 3, + .tCKESR = 3, + .tFAW = 8 +}; + +static const struct lpddr2_ac_timings *elpida_ac_timings[MAX_NUM_SPEEDBINS] = { + &timings_elpida_200_mhz, + &timings_elpida_333_mhz, + &timings_elpida_400_mhz +}; + +const struct lpddr2_device_timings elpida_2G_S4_timings = { + .ac_timings = elpida_ac_timings, + .min_tck = &min_tck_elpida, +}; + +void emif_get_device_timings_sdp(u32 emif_nr, + const struct lpddr2_device_timings **cs0_device_timings, + const struct lpddr2_device_timings **cs1_device_timings) +{ + u32 omap_rev = omap_revision(); + + /* Identical devices on EMIF1 & EMIF2 */ + *cs0_device_timings = &elpida_2G_S4_timings; + + if ((omap_rev == OMAP4430_ES1_0) || (omap_rev == OMAP4470_ES1_0)) + *cs1_device_timings = NULL; + else + *cs1_device_timings = &elpida_2G_S4_timings; +} + +void emif_get_device_timings(u32 emif_nr, + const struct lpddr2_device_timings **cs0_device_timings, + const struct lpddr2_device_timings **cs1_device_timings) + __attribute__((weak, alias("emif_get_device_timings_sdp"))); + +#endif /* CONFIG_SYS_DEFAULT_LPDDR2_TIMINGS */ + +const struct lpddr2_mr_regs mr_regs = { + .mr1 = MR1_BL_8_BT_SEQ_WRAP_EN_NWR_3, + .mr2 = 0x4, + .mr3 = -1, + .mr10 = MR10_ZQ_ZQINIT, + .mr16 = MR16_REF_FULL_ARRAY +}; + +void get_lpddr2_mr_regs(const struct lpddr2_mr_regs **regs) +{ + *regs = &mr_regs; +} + +__weak const struct read_write_regs *get_bug_regs(u32 *iterations) +{ + return 0; +} |