1 // SPDX-License-Identifier: GPL-2.0+
5 * Board functions for B&R BRPPT1
7 * Copyright (C) 2013 Hannes Schmelzer <oe5hpm@oevsv.at>
8 * Bernecker & Rainer Industrieelektronik GmbH - http://www.br-automation.com
15 #include <asm/arch/cpu.h>
16 #include <asm/arch/hardware.h>
17 #include <asm/arch/omap.h>
18 #include <asm/arch/ddr_defs.h>
19 #include <asm/arch/clock.h>
20 #include <asm/arch/gpio.h>
21 #include <asm/arch/sys_proto.h>
22 #include <asm/arch/mem.h>
27 #include <power/tps65217.h>
28 #include "../common/bur_common.h"
31 DECLARE_GLOBAL_DATA_PTR;
33 /* --------------------------------------------------------------------------*/
34 /* -- defines for GPIO -- */
35 #define REPSWITCH (0+20) /* GPIO0_20 */
37 #if defined(CONFIG_SPL_BUILD)
38 /* TODO: check ram-timing ! */
39 static const struct ddr_data ddr3_data = {
40 .datardsratio0 = MT41K256M16HA125E_RD_DQS,
41 .datawdsratio0 = MT41K256M16HA125E_WR_DQS,
42 .datafwsratio0 = MT41K256M16HA125E_PHY_FIFO_WE,
43 .datawrsratio0 = MT41K256M16HA125E_PHY_WR_DATA,
46 static const struct cmd_control ddr3_cmd_ctrl_data = {
47 .cmd0csratio = MT41K256M16HA125E_RATIO,
48 .cmd0iclkout = MT41K256M16HA125E_INVERT_CLKOUT,
50 .cmd1csratio = MT41K256M16HA125E_RATIO,
51 .cmd1iclkout = MT41K256M16HA125E_INVERT_CLKOUT,
53 .cmd2csratio = MT41K256M16HA125E_RATIO,
54 .cmd2iclkout = MT41K256M16HA125E_INVERT_CLKOUT,
57 static struct emif_regs ddr3_emif_reg_data = {
58 .sdram_config = MT41K256M16HA125E_EMIF_SDCFG,
59 .ref_ctrl = MT41K256M16HA125E_EMIF_SDREF,
60 .sdram_tim1 = MT41K256M16HA125E_EMIF_TIM1,
61 .sdram_tim2 = MT41K256M16HA125E_EMIF_TIM2,
62 .sdram_tim3 = MT41K256M16HA125E_EMIF_TIM3,
63 .zq_config = MT41K256M16HA125E_ZQ_CFG,
64 .emif_ddr_phy_ctlr_1 = MT41K256M16HA125E_EMIF_READ_LATENCY,
67 static const struct ctrl_ioregs ddr3_ioregs = {
68 .cm0ioctl = MT41K256M16HA125E_IOCTRL_VALUE,
69 .cm1ioctl = MT41K256M16HA125E_IOCTRL_VALUE,
70 .cm2ioctl = MT41K256M16HA125E_IOCTRL_VALUE,
71 .dt0ioctl = MT41K256M16HA125E_IOCTRL_VALUE,
72 .dt1ioctl = MT41K256M16HA125E_IOCTRL_VALUE,
75 #define OSC (V_OSCK/1000000)
76 static const struct dpll_params dpll_ddr3 = { 400, OSC-1, 1, -1, -1, -1, -1};
78 void am33xx_spl_board_init(void)
80 struct cm_perpll *const cmper = (struct cm_perpll *)CM_PER;
81 /*struct cm_wkuppll *const cmwkup = (struct cm_wkuppll *)CM_WKUP;*/
82 struct cm_dpll *const cmdpll = (struct cm_dpll *)CM_DPLL;
85 * in TRM they write a reset value of 1 (=CLK_M_OSC) for the
86 * CLKSEL_TIMER6_CLK Register, in fact reset value is 0, so we need set
87 * the source of timer6 clk to CLK_M_OSC
89 writel(0x01, &cmdpll->clktimer6clk);
91 /* enable additional clocks of modules which are accessed later */
92 u32 *const clk_domains[] = {
93 &cmper->lcdcclkstctrl,
97 u32 *const clk_modules_tsspecific[] = {
99 &cmper->timer5clkctrl,
100 &cmper->timer6clkctrl,
103 do_enable_clocks(clk_domains, clk_modules_tsspecific, 1);
106 enable_i2c_pin_mux();
108 i2c_init(CONFIG_SYS_OMAP24_I2C_SPEED, CONFIG_SYS_OMAP24_I2C_SLAVE);
111 gpio_direction_output(64+29, 1); /* switch NAND_RnB to GPMC_WAIT1 */
112 gpio_direction_output(64+28, 1); /* switch MII2_CRS to GPMC_WAIT0 */
115 const struct dpll_params *get_dpll_ddr_params(void)
120 void sdram_init(void)
122 config_ddr(400, &ddr3_ioregs,
125 &ddr3_emif_reg_data, 0);
127 #endif /* CONFIG_SPL_BUILD */
129 /* Basic board specific setup. Pinmux has been handled already. */
132 #if defined(CONFIG_HW_WATCHDOG)
135 gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
142 #ifdef CONFIG_BOARD_LATE_INIT
143 int board_late_init(void)
145 if (0 == gpio_get_value(REPSWITCH)) {
146 env_set("bootcmd", "run netconsole");
150 #endif /* CONFIG_BOARD_LATE_INIT */