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Tom Rini83d290c2018-05-06 17:58:06 -04001// SPDX-License-Identifier: GPL-2.0+
Hannes Petermaier072cefe2014-02-07 14:06:50 +01002/*
3 * board.c
4 *
Hannes Schmelzera4d79992016-06-22 12:36:14 +02005 * Board functions for B&R BRXRE1 Board
Hannes Petermaier072cefe2014-02-07 14:06:50 +01006 *
Hannes Schmelzer4c302b92015-05-28 15:41:12 +02007 * Copyright (C) 2013 Hannes Schmelzer <oe5hpm@oevsv.at>
Hannes Petermaier072cefe2014-02-07 14:06:50 +01008 * Bernecker & Rainer Industrieelektronik GmbH - http://www.br-automation.com
9 *
Hannes Petermaier072cefe2014-02-07 14:06:50 +010010 */
11#include <common.h>
Simon Glass9eef56d2019-08-01 09:46:48 -060012#include <env.h>
Hannes Petermaier072cefe2014-02-07 14:06:50 +010013#include <errno.h>
Simon Glass52559322019-11-14 12:57:46 -070014#include <init.h>
Hannes Petermaier072cefe2014-02-07 14:06:50 +010015#include <spl.h>
16#include <asm/arch/cpu.h>
17#include <asm/arch/hardware.h>
18#include <asm/arch/omap.h>
19#include <asm/arch/ddr_defs.h>
20#include <asm/arch/clock.h>
21#include <asm/arch/gpio.h>
22#include <asm/arch/sys_proto.h>
23#include <asm/arch/mem.h>
Simon Glass401d1c42020-10-30 21:38:53 -060024#include <asm/global_data.h>
Hannes Petermaier072cefe2014-02-07 14:06:50 +010025#include <asm/io.h>
26#include <asm/emif.h>
27#include <asm/gpio.h>
Hannes Schmelzereaba7df2019-02-06 13:25:59 +010028#include <dm.h>
Hannes Petermaier072cefe2014-02-07 14:06:50 +010029#include <power/tps65217.h>
30#include "../common/bur_common.h"
Hannes Schmelzer1d260732019-04-10 14:13:16 +020031#include "../common/br_resetc.h"
Hannes Petermaier072cefe2014-02-07 14:06:50 +010032
33/* -------------------------------------------------------------------------*/
34/* -- defines for used GPIO Hardware -- */
Hannes Schmelzer2b1e2422019-04-10 14:13:15 +020035#define ESC_KEY (0 + 19)
36#define LCD_PWR (0 + 5)
Hannes Petermaier072cefe2014-02-07 14:06:50 +010037
Hannes Schmelzer1d260732019-04-10 14:13:16 +020038#define RSTCTRL_FORCE_PWR_NEN 0x04
39#define RSTCTRL_CAN_STB 0x40
Hannes Petermaier072cefe2014-02-07 14:06:50 +010040
Hannes Petermaiera9642922015-02-03 13:22:42 +010041DECLARE_GLOBAL_DATA_PTR;
42
Hannes Petermaier072cefe2014-02-07 14:06:50 +010043#if defined(CONFIG_SPL_BUILD)
Hannes Petermaier072cefe2014-02-07 14:06:50 +010044static const struct ddr_data ddr3_data = {
45 .datardsratio0 = MT41K256M16HA125E_RD_DQS,
46 .datawdsratio0 = MT41K256M16HA125E_WR_DQS,
47 .datafwsratio0 = MT41K256M16HA125E_PHY_FIFO_WE,
48 .datawrsratio0 = MT41K256M16HA125E_PHY_WR_DATA,
49};
Hannes Schmelzer2b1e2422019-04-10 14:13:15 +020050
Hannes Petermaier072cefe2014-02-07 14:06:50 +010051static const struct cmd_control ddr3_cmd_ctrl_data = {
52 .cmd0csratio = MT41K256M16HA125E_RATIO,
53 .cmd0iclkout = MT41K256M16HA125E_INVERT_CLKOUT,
54
55 .cmd1csratio = MT41K256M16HA125E_RATIO,
56 .cmd1iclkout = MT41K256M16HA125E_INVERT_CLKOUT,
57
58 .cmd2csratio = MT41K256M16HA125E_RATIO,
59 .cmd2iclkout = MT41K256M16HA125E_INVERT_CLKOUT,
60};
Hannes Schmelzer2b1e2422019-04-10 14:13:15 +020061
Hannes Petermaier072cefe2014-02-07 14:06:50 +010062static struct emif_regs ddr3_emif_reg_data = {
63 .sdram_config = MT41K256M16HA125E_EMIF_SDCFG,
64 .ref_ctrl = MT41K256M16HA125E_EMIF_SDREF,
65 .sdram_tim1 = MT41K256M16HA125E_EMIF_TIM1,
66 .sdram_tim2 = MT41K256M16HA125E_EMIF_TIM2,
67 .sdram_tim3 = MT41K256M16HA125E_EMIF_TIM3,
68 .zq_config = MT41K256M16HA125E_ZQ_CFG,
69 .emif_ddr_phy_ctlr_1 = MT41K256M16HA125E_EMIF_READ_LATENCY,
70};
71
72static const struct ctrl_ioregs ddr3_ioregs = {
73 .cm0ioctl = MT41K256M16HA125E_IOCTRL_VALUE,
74 .cm1ioctl = MT41K256M16HA125E_IOCTRL_VALUE,
75 .cm2ioctl = MT41K256M16HA125E_IOCTRL_VALUE,
76 .dt0ioctl = MT41K256M16HA125E_IOCTRL_VALUE,
77 .dt1ioctl = MT41K256M16HA125E_IOCTRL_VALUE,
78};
79
Hannes Schmelzer2b1e2422019-04-10 14:13:15 +020080#define OSC (V_OSCK / 1000000)
81const struct dpll_params dpll_ddr3 = { 400, OSC - 1, 1, -1, -1, -1, -1};
Hannes Petermaier072cefe2014-02-07 14:06:50 +010082
83void am33xx_spl_board_init(void)
84{
Hannes Schmelzereaba7df2019-02-06 13:25:59 +010085 int rc;
Hannes Petermaier072cefe2014-02-07 14:06:50 +010086
87 struct cm_perpll *const cmper = (struct cm_perpll *)CM_PER;
88 struct cm_wkuppll *const cmwkup = (struct cm_wkuppll *)CM_WKUP;
89 /*
90 * enable additional clocks of modules which are accessed later from
91 * VxWorks OS
92 */
93 u32 *const clk_domains[] = { 0 };
94
Hannes Schmelzera4d79992016-06-22 12:36:14 +020095 u32 *const clk_modules_xre1specific[] = {
Hannes Petermaier072cefe2014-02-07 14:06:50 +010096 &cmwkup->wkup_adctscctrl,
97 &cmper->spi1clkctrl,
98 &cmper->dcan0clkctrl,
99 &cmper->dcan1clkctrl,
100 &cmper->epwmss0clkctrl,
101 &cmper->epwmss1clkctrl,
102 &cmper->epwmss2clkctrl,
Hannes Petermaiercf630f22015-02-03 13:22:39 +0100103 &cmper->lcdclkctrl,
104 &cmper->lcdcclkstctrl,
Hannes Petermaier072cefe2014-02-07 14:06:50 +0100105 0
106 };
Hannes Schmelzera4d79992016-06-22 12:36:14 +0200107 do_enable_clocks(clk_domains, clk_modules_xre1specific, 1);
Hannes Petermaier072cefe2014-02-07 14:06:50 +0100108 /* power-OFF LCD-Display */
Hannes Schmelzereaba7df2019-02-06 13:25:59 +0100109 if (gpio_request(LCD_PWR, "LCD_PWR") != 0)
110 printf("cannot request gpio for LCD_PWR!\n");
111 else if (gpio_direction_output(LCD_PWR, 0) != 0)
112 printf("cannot set direction output on LCD_PWR!\n");
Hannes Petermaier072cefe2014-02-07 14:06:50 +0100113
114 /* setup I2C */
Hannes Petermaier2b5b2be2015-03-19 10:43:15 +0100115 enable_i2c_pin_mux();
Hannes Petermaier072cefe2014-02-07 14:06:50 +0100116
Hannes Schmelzereaba7df2019-02-06 13:25:59 +0100117 /* power-ON 3V3 via Resetcontroller */
Hannes Schmelzer1d260732019-04-10 14:13:16 +0200118 rc = br_resetc_regset(RSTCTRL_CTRLREG,
119 RSTCTRL_FORCE_PWR_NEN | RSTCTRL_CAN_STB);
Hannes Schmelzereaba7df2019-02-06 13:25:59 +0100120 if (rc != 0)
Hannes Schmelzer1d260732019-04-10 14:13:16 +0200121 printf("ERROR: cannot write to resetc (turn on PWR_nEN)!\n");
Hannes Petermaier072cefe2014-02-07 14:06:50 +0100122
Hannes Schmelzera9484aa2019-01-31 09:24:45 +0100123 pmicsetup(0, 0);
Hannes Petermaier072cefe2014-02-07 14:06:50 +0100124}
125
126const struct dpll_params *get_dpll_ddr_params(void)
127{
128 return &dpll_ddr3;
129}
130
131void sdram_init(void)
132{
133 config_ddr(400, &ddr3_ioregs,
134 &ddr3_data,
135 &ddr3_cmd_ctrl_data,
136 &ddr3_emif_reg_data, 0);
137}
138#endif /* CONFIG_SPL_BUILD */
139/*
140 * Basic board specific setup. Pinmux has been handled already.
141 */
142int board_init(void)
143{
Hannes Schmelzer1d260732019-04-10 14:13:16 +0200144 /* request common used gpios */
145 gpio_request(ESC_KEY, "boot-key");
146
Hannes Schmelzereaba7df2019-02-06 13:25:59 +0100147 if (power_tps65217_init(0))
148 printf("WARN: cannot setup PMIC 0x24 @ bus #0, not found!.\n");
149
Hannes Petermaier072cefe2014-02-07 14:06:50 +0100150 return 0;
151}
152
153#ifdef CONFIG_BOARD_LATE_INIT
Hannes Schmelzer1d260732019-04-10 14:13:16 +0200154
155int board_boot_key(void)
156{
157 return gpio_get_value(ESC_KEY);
158}
159
Hannes Petermaier072cefe2014-02-07 14:06:50 +0100160int board_late_init(void)
161{
Hannes Schmelzer1d260732019-04-10 14:13:16 +0200162 char othbootargs[128];
Hannes Petermaier072cefe2014-02-07 14:06:50 +0100163
Hannes Schmelzer1d260732019-04-10 14:13:16 +0200164 br_resetc_bmode();
Hannes Schmelzereaba7df2019-02-06 13:25:59 +0100165
Hannes Petermaier91931f72015-09-29 08:43:33 +0200166 /* setup othbootargs for bootvx-command (vxWorks bootline) */
Anatolij Gustschinac36dc72021-05-24 17:19:56 +0200167 snprintf(othbootargs, sizeof(othbootargs),
168 "u=vxWorksFTP pw=vxWorks o=0x%08x;0x%08x;0x%08x;0x%08x",
169 (u32)gd->relocaddr,
170 (u32)env_get_ulong("vx_memtop", 16, gd->relocaddr),
171 (u32)env_get_ulong("vx_romfsbase", 16, 0),
172 (u32)env_get_ulong("vx_romfssize", 16, 0));
Simon Glass382bee52017-08-03 12:22:09 -0600173 env_set("othbootargs", othbootargs);
Hannes Petermaier072cefe2014-02-07 14:06:50 +0100174 /*
175 * reset VBAR registers to its reset location, VxWorks 6.9.3.2 does
176 * expect that vectors are there, original u-boot moves them to _start
177 */
178 __asm__("ldr r0,=0x20000");
179 __asm__("mcr p15, 0, r0, c12, c0, 0"); /* Set VBAR */
180
181 return 0;
182}
183#endif /* CONFIG_BOARD_LATE_INIT */