1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * Copyright (C) 2016 Compulab, Ltd.
4 */
5
6 #include <common.h>
7 #include <spl.h>
8 #include <i2c.h>
9 #include <asm/arch/clock.h>
10 #include <asm/arch/ddr_defs.h>
11 #include <asm/gpio.h>
12 #include <power/pmic.h>
13 #include <power/tps65218.h>
14 #include "board.h"
15
16 const struct dpll_params dpll_mpu = { 800, 24, 1, -1, -1, -1, -1 };
17 const struct dpll_params dpll_core = { 1000, 24, -1, -1, 10, 8, 4 };
18 const struct dpll_params dpll_per = { 960, 24, 5, -1, -1, -1, -1 };
19 const struct dpll_params dpll_ddr = { 400, 23, 1, -1, 1, -1, -1 };
20
21 const struct ctrl_ioregs ioregs_ddr3 = {
22 .cm0ioctl = DDR3_ADDRCTRL_IOCTRL_VALUE,
23 .cm1ioctl = DDR3_ADDRCTRL_WD0_IOCTRL_VALUE,
24 .cm2ioctl = DDR3_ADDRCTRL_WD1_IOCTRL_VALUE,
25 .dt0ioctl = DDR3_DATA0_IOCTRL_VALUE,
26 .dt1ioctl = DDR3_DATA0_IOCTRL_VALUE,
27 .dt2ioctrl = DDR3_DATA0_IOCTRL_VALUE,
28 .dt3ioctrl = DDR3_DATA0_IOCTRL_VALUE,
29 .emif_sdram_config_ext = 0x0143,
30 };
31
32 /* EMIF DDR3 Configurations are different for production AM43X GP EVMs */
33 struct emif_regs ddr3_emif_regs = {
34 .sdram_config = 0x638413B2,
35 .ref_ctrl = 0x00000C30,
36 .sdram_tim1 = 0xEAAAD4DB,
37 .sdram_tim2 = 0x266B7FDA,
38 .sdram_tim3 = 0x107F8678,
39 .read_idle_ctrl = 0x00050000,
40 .zq_config = 0x50074BE4,
41 .temp_alert_config = 0x0,
42 .emif_ddr_phy_ctlr_1 = 0x0E004008,
43 .emif_ddr_ext_phy_ctrl_1 = 0x08020080,
44 .emif_ddr_ext_phy_ctrl_2 = 0x00000066,
45 .emif_ddr_ext_phy_ctrl_3 = 0x00000091,
46 .emif_ddr_ext_phy_ctrl_4 = 0x000000B9,
47 .emif_ddr_ext_phy_ctrl_5 = 0x000000E6,
48 .emif_rd_wr_exec_thresh = 0x80000405,
49 .emif_prio_class_serv_map = 0x80000001,
50 .emif_connect_id_serv_1_map = 0x80000094,
51 .emif_connect_id_serv_2_map = 0x00000000,
52 .emif_cos_config = 0x000FFFFF
53 };
54
55 const u32 ext_phy_ctrl_const_base_ddr3[] = {
56 0x00000000,
57 0x00000044,
58 0x00000044,
59 0x00000046,
60 0x00000046,
61 0x00000000,
62 0x00000059,
63 0x00000077,
64 0x00000093,
65 0x000000A8,
66 0x00000000,
67 0x00000019,
68 0x00000037,
69 0x00000053,
70 0x00000068,
71 0x00000000,
72 0x0,
73 0x0,
74 0x40000000,
75 0x08102040
76 };
77
emif_get_ext_phy_ctrl_const_regs(const u32 ** regs,u32 * size)78 void emif_get_ext_phy_ctrl_const_regs(const u32 **regs, u32 *size)
79 {
80 *regs = ext_phy_ctrl_const_base_ddr3;
81 *size = ARRAY_SIZE(ext_phy_ctrl_const_base_ddr3);
82 }
83
get_dpll_ddr_params(void)84 const struct dpll_params *get_dpll_ddr_params(void)
85 {
86 return &dpll_ddr;
87 }
88
get_dpll_mpu_params(void)89 const struct dpll_params *get_dpll_mpu_params(void)
90 {
91 return &dpll_mpu;
92 }
93
get_dpll_core_params(void)94 const struct dpll_params *get_dpll_core_params(void)
95 {
96 return &dpll_core;
97 }
98
get_dpll_per_params(void)99 const struct dpll_params *get_dpll_per_params(void)
100 {
101 return &dpll_per;
102 }
103
scale_vcores(void)104 void scale_vcores(void)
105 {
106 set_i2c_pin_mux();
107 i2c_init(CONFIG_SYS_OMAP24_I2C_SPEED, CONFIG_SYS_OMAP24_I2C_SLAVE);
108 if (i2c_probe(TPS65218_CHIP_PM))
109 return;
110
111 tps65218_voltage_update(TPS65218_DCDC1, TPS65218_DCDC_VOLT_SEL_1100MV);
112 tps65218_voltage_update(TPS65218_DCDC2, TPS65218_DCDC_VOLT_SEL_1100MV);
113 }
114
sdram_init(void)115 void sdram_init(void)
116 {
117 unsigned long ram_size;
118
119 config_ddr(0, &ioregs_ddr3, NULL, NULL, &ddr3_emif_regs, 0);
120 ram_size = get_ram_size((long int *)CONFIG_SYS_SDRAM_BASE, 0x80000000);
121 if (ram_size == 0x80000000 ||
122 ram_size == 0x40000000 ||
123 ram_size == 0x20000000)
124 return;
125
126 ddr3_emif_regs.sdram_config = 0x638453B2;
127 config_ddr(0, &ioregs_ddr3, NULL, NULL, &ddr3_emif_regs, 0);
128 ram_size = get_ram_size((long int *)CONFIG_SYS_SDRAM_BASE, 0x80000000);
129 if (ram_size == 0x08000000)
130 return;
131
132 hang();
133 }
134
135