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39245c8699
Based on the definitive guide to EMIF configuration[1] certain registers that we have been modifying (and are documented registers) should be left in their reset values rather than modified. This has been tested on AM335x GP EVM and Beaglebone White. [1]: http://processors.wiki.ti.com/index.php/AM335x_EMIF_Configuration_tips Cc: Enric Balletbo i Serra <eballetbo@iseebcn.com> Cc: Javier Martinez Canillas <javier@dowhile0.org> Cc: Heiko Schocher <hs@denx.de> Cc: Lars Poeschel <poeschel@lemonage.de> Signed-off-by: Tom Rini <trini@ti.com> Tested-by: Matt Porter <matt.porter@linaro.org>
213 lines
5.3 KiB
C
213 lines
5.3 KiB
C
/*
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* evm.c
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*
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* Copyright (C) 2013, Adeneo Embedded <www.adeneo-embedded.com>
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* Antoine Tenart, <atenart@adeneo-embedded.com>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <spl.h>
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#include <asm/cache.h>
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#include <asm/io.h>
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#include <asm/arch/clock.h>
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#include <asm/arch/cpu.h>
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#include <asm/arch/ddr_defs.h>
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#include <asm/arch/hardware.h>
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#include <asm/arch/sys_proto.h>
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#include <asm/arch/mmc_host_def.h>
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#include <asm/arch/mem.h>
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#include <asm/arch/mux.h>
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DECLARE_GLOBAL_DATA_PTR;
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int board_init(void)
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{
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gd->bd->bi_boot_params = PHYS_DRAM_1 + 0x100;
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return 0;
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}
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#ifdef CONFIG_SPL_BUILD
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static struct module_pin_mux mmc_pin_mux[] = {
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{ OFFSET(pincntl157), PULLDOWN_EN | PULLUDDIS | MODE(0x0) },
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{ OFFSET(pincntl158), PULLDOWN_EN | PULLUDEN | MODE(0x0) },
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{ OFFSET(pincntl159), PULLUP_EN | PULLUDDIS | MODE(0x0) },
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{ OFFSET(pincntl160), PULLUP_EN | PULLUDDIS | MODE(0x0) },
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{ OFFSET(pincntl161), PULLUP_EN | PULLUDDIS | MODE(0x0) },
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{ OFFSET(pincntl162), PULLUP_EN | PULLUDDIS | MODE(0x0) },
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{ OFFSET(pincntl163), PULLUP_EN | PULLUDDIS | MODE(0x0) },
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{ -1 },
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};
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const struct dmm_lisa_map_regs evm_lisa_map_regs = {
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.dmm_lisa_map_0 = 0x00000000,
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.dmm_lisa_map_1 = 0x00000000,
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.dmm_lisa_map_2 = 0x80640300,
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.dmm_lisa_map_3 = 0xC0640320,
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};
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/*
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* DDR2 related definitions
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*/
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#ifdef CONFIG_TI816X_EVM_DDR2
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static struct ddr_data ddr2_data = {
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.datardsratio0 = ((0x40<<10) | (0x40<<0)),
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.datawdsratio0 = ((0x4A<<10) | (0x4A<<0)),
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.datawiratio0 = ((0x0<<10) | (0x0<<0)),
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.datagiratio0 = ((0x0<<10) | (0x0<<0)),
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.datafwsratio0 = ((0x13A<<10) | (0x13A<<0)),
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.datawrsratio0 = ((0x8A<<10) | (0x8A<<0)),
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};
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static struct cmd_control ddr2_ctrl = {
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.cmd0csratio = 0x80,
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.cmd0iclkout = 0x00,
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.cmd1csratio = 0x80,
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.cmd1iclkout = 0x00,
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.cmd2csratio = 0x80,
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.cmd2iclkout = 0x00,
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};
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static struct emif_regs ddr2_emif0_regs = {
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.sdram_config = 0x43801A3A,
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.ref_ctrl = 0x10000C30,
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.sdram_tim1 = 0x0AAB15E2,
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.sdram_tim2 = 0x423631D2,
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.sdram_tim3 = 0x0080032F,
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.emif_ddr_phy_ctlr_1 = 0x0, /* depend on cpu rev, set later */
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};
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static struct emif_regs ddr2_emif1_regs = {
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.sdram_config = 0x43801A3A,
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.ref_ctrl = 0x10000C30,
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.sdram_tim1 = 0x0AAB15E2,
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.sdram_tim2 = 0x423631D2,
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.sdram_tim3 = 0x0080032F,
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.emif_ddr_phy_ctlr_1 = 0x0, /* depend on cpu rev, set later */
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};
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#endif
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/*
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* DDR3 related definitions
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*/
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#if defined(CONFIG_TI816X_DDR_PLL_400)
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#define RD_DQS 0x03B
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#define WR_DQS 0x0A6
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#define RD_DQS_GATE 0x12A
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#define EMIF_SDCFG 0x62A41032
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#define EMIF_SDREF 0x10000C30
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#define EMIF_TIM1 0x0CCCE524
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#define EMIF_TIM2 0x30308023
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#define EMIF_TIM3 0x009F82CF
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#define EMIF_PHYCFG 0x0000010B
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#elif defined(CONFIG_TI816X_DDR_PLL_531)
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#define RD_DQS 0x039
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#define WR_DQS 0x0B4
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#define RD_DQS_GATE 0x13D
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#define EMIF_SDCFG 0x62A51832
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#define EMIF_SDREF 0x1000102E
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#define EMIF_TIM1 0x0EF136AC
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#define EMIF_TIM2 0x30408063
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#define EMIF_TIM3 0x009F83AF
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#define EMIF_PHYCFG 0x0000010C
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#elif defined(CONFIG_TI816X_DDR_PLL_675)
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#define RD_DQS 0x039
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#define WR_DQS 0x091
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#define RD_DQS_GATE 0x196
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#define EMIF_SDCFG 0x62A63032
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#define EMIF_SDREF 0x10001491
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#define EMIF_TIM1 0x13358875
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#define EMIF_TIM2 0x5051806C
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#define EMIF_TIM3 0x009F84AF
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#define EMIF_PHYCFG 0x0000010F
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#elif defined(CONFIG_TI816X_DDR_PLL_796)
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#define RD_DQS 0x035
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#define WR_DQS 0x093
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#define RD_DQS_GATE 0x1B3
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#define EMIF_SDCFG 0x62A73832
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#define EMIF_SDREF 0x10001841
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#define EMIF_TIM1 0x1779C9FE
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#define EMIF_TIM2 0x50608074
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#define EMIF_TIM3 0x009F857F
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#define EMIF_PHYCFG 0x00000110
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#endif
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static struct ddr_data ddr3_data = {
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.datardsratio0 = ((RD_DQS<<10) | (RD_DQS<<0)),
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.datawdsratio0 = ((WR_DQS<<10) | (WR_DQS<<0)),
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.datawiratio0 = ((0x20<<10) | 0x20<<0),
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.datagiratio0 = ((0x20<<10) | 0x20<<0),
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.datafwsratio0 = ((RD_DQS_GATE<<10) | (RD_DQS_GATE<<0)),
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.datawrsratio0 = (((WR_DQS+0x40)<<10) | ((WR_DQS+0x40)<<0)),
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};
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static const struct cmd_control ddr3_ctrl = {
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.cmd0csratio = 0x100,
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.cmd0iclkout = 0x001,
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.cmd1csratio = 0x100,
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.cmd1iclkout = 0x001,
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.cmd2csratio = 0x100,
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.cmd2iclkout = 0x001,
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};
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static const struct emif_regs ddr3_emif0_regs = {
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.sdram_config = EMIF_SDCFG,
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.ref_ctrl = EMIF_SDREF,
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.sdram_tim1 = EMIF_TIM1,
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.sdram_tim2 = EMIF_TIM2,
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.sdram_tim3 = EMIF_TIM3,
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.emif_ddr_phy_ctlr_1 = EMIF_PHYCFG,
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};
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static const struct emif_regs ddr3_emif1_regs = {
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.sdram_config = EMIF_SDCFG,
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.ref_ctrl = EMIF_SDREF,
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.sdram_tim1 = EMIF_TIM1,
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.sdram_tim2 = EMIF_TIM2,
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.sdram_tim3 = EMIF_TIM3,
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.emif_ddr_phy_ctlr_1 = EMIF_PHYCFG,
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};
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void set_uart_mux_conf(void) {}
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void set_mux_conf_regs(void)
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{
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configure_module_pin_mux(mmc_pin_mux);
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}
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void sdram_init(void)
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{
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config_dmm(&evm_lisa_map_regs);
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#ifdef CONFIG_TI816X_EVM_DDR2
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if (CONFIG_TI816X_USE_EMIF0) {
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ddr2_emif0_regs.emif_ddr_phy_ctlr_1 =
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(get_cpu_rev() == 0x1 ? 0x0000010B : 0x0000030B);
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config_ddr(0, 0, &ddr2_data, &ddr2_ctrl, &ddr2_emif0_regs, 0);
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}
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if (CONFIG_TI816X_USE_EMIF1) {
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ddr2_emif1_regs.emif_ddr_phy_ctlr_1 =
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(get_cpu_rev() == 0x1 ? 0x0000010B : 0x0000030B);
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config_ddr(1, 0, &ddr2_data, &ddr2_ctrl, &ddr2_emif1_regs, 1);
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}
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#endif
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#ifdef CONFIG_TI816X_EVM_DDR3
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if (CONFIG_TI816X_USE_EMIF0)
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config_ddr(0, 0, &ddr3_data, &ddr3_ctrl, &ddr3_emif0_regs, 0);
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if (CONFIG_TI816X_USE_EMIF1)
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config_ddr(1, 0, &ddr3_data, &ddr3_ctrl, &ddr3_emif1_regs, 1);
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#endif
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}
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#endif /* CONFIG_SPL_BUILD */
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