1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
|
/*
* Copyright (C) 2012 Freescale Semiconductor, Inc.
* Author: Fabio Estevam <fabio.estevam@freescale.com>
*
* Copyright (C) 2013, 2014 TQ Systems (ported SabreSD to TQMa6x)
* Author: Markus Niebel <markus.niebel@tq-group.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <asm/arch/clock.h>
#include <asm/arch/mx6-pins.h>
#include <asm/arch/imx-regs.h>
#include <asm/arch/iomux.h>
#include <asm/arch/sys_proto.h>
#include <asm/errno.h>
#include <asm/gpio.h>
#include <asm/io.h>
#include <asm/imx-common/mxc_i2c.h>
#include <common.h>
#include <fsl_esdhc.h>
#include <libfdt.h>
#include <i2c.h>
#include <mmc.h>
#include <power/pfuze100_pmic.h>
#include <power/pmic.h>
#include "tqma6_bb.h"
DECLARE_GLOBAL_DATA_PTR;
#define USDHC_CLK_PAD_CTRL (PAD_CTL_PUS_47K_UP | PAD_CTL_SPEED_LOW | \
PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS)
#define USDHC_PAD_CTRL (PAD_CTL_PUS_47K_UP | PAD_CTL_SPEED_LOW | \
PAD_CTL_DSE_80ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS)
#define GPIO_OUT_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_LOW | \
PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
#define GPIO_IN_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_LOW | \
PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
#define SPI_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
PAD_CTL_DSE_80ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS)
#define I2C_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
PAD_CTL_DSE_40ohm | PAD_CTL_HYS | \
PAD_CTL_ODE | PAD_CTL_SRE_FAST)
int dram_init(void)
{
gd->ram_size = get_ram_size((void *)PHYS_SDRAM, PHYS_SDRAM_SIZE);
return 0;
}
static const uint16_t tqma6_emmc_dsr = 0x0100;
/* eMMC on USDHCI3 always present */
static iomux_v3_cfg_t const tqma6_usdhc3_pads[] = {
NEW_PAD_CTRL(MX6_PAD_SD3_CLK__SD3_CLK, USDHC_PAD_CTRL),
NEW_PAD_CTRL(MX6_PAD_SD3_CMD__SD3_CMD, USDHC_PAD_CTRL),
NEW_PAD_CTRL(MX6_PAD_SD3_DAT0__SD3_DATA0, USDHC_PAD_CTRL),
NEW_PAD_CTRL(MX6_PAD_SD3_DAT1__SD3_DATA1, USDHC_PAD_CTRL),
NEW_PAD_CTRL(MX6_PAD_SD3_DAT2__SD3_DATA2, USDHC_PAD_CTRL),
NEW_PAD_CTRL(MX6_PAD_SD3_DAT3__SD3_DATA3, USDHC_PAD_CTRL),
NEW_PAD_CTRL(MX6_PAD_SD3_DAT4__SD3_DATA4, USDHC_PAD_CTRL),
NEW_PAD_CTRL(MX6_PAD_SD3_DAT5__SD3_DATA5, USDHC_PAD_CTRL),
NEW_PAD_CTRL(MX6_PAD_SD3_DAT6__SD3_DATA6, USDHC_PAD_CTRL),
NEW_PAD_CTRL(MX6_PAD_SD3_DAT7__SD3_DATA7, USDHC_PAD_CTRL),
/* eMMC reset */
NEW_PAD_CTRL(MX6_PAD_SD3_RST__SD3_RESET, GPIO_OUT_PAD_CTRL),
};
/*
* According to board_mmc_init() the following map is done:
* (U-boot device node) (Physical Port)
* mmc0 eMMC (SD3) on TQMa6
* mmc1 .. n optional slots used on baseboard
*/
struct fsl_esdhc_cfg tqma6_usdhc_cfg = {
.esdhc_base = USDHC3_BASE_ADDR,
.max_bus_width = 8,
};
int board_mmc_getcd(struct mmc *mmc)
{
struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
int ret = 0;
if (cfg->esdhc_base == USDHC3_BASE_ADDR)
/* eMMC/uSDHC3 is always present */
ret = 1;
else
ret = tqma6_bb_board_mmc_getcd(mmc);
return ret;
}
int board_mmc_getwp(struct mmc *mmc)
{
struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
int ret = 0;
if (cfg->esdhc_base == USDHC3_BASE_ADDR)
/* eMMC/uSDHC3 is always present */
ret = 0;
else
ret = tqma6_bb_board_mmc_getwp(mmc);
return ret;
}
int board_mmc_init(bd_t *bis)
{
imx_iomux_v3_setup_multiple_pads(tqma6_usdhc3_pads,
ARRAY_SIZE(tqma6_usdhc3_pads));
tqma6_usdhc_cfg.sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
if (fsl_esdhc_initialize(bis, &tqma6_usdhc_cfg)) {
puts("Warning: failed to initialize eMMC dev\n");
} else {
struct mmc *mmc = find_mmc_device(0);
if (mmc)
mmc_set_dsr(mmc, tqma6_emmc_dsr);
}
tqma6_bb_board_mmc_init(bis);
return 0;
}
static iomux_v3_cfg_t const tqma6_ecspi1_pads[] = {
/* SS1 */
NEW_PAD_CTRL(MX6_PAD_EIM_D19__GPIO3_IO19, SPI_PAD_CTRL),
NEW_PAD_CTRL(MX6_PAD_EIM_D16__ECSPI1_SCLK, SPI_PAD_CTRL),
NEW_PAD_CTRL(MX6_PAD_EIM_D17__ECSPI1_MISO, SPI_PAD_CTRL),
NEW_PAD_CTRL(MX6_PAD_EIM_D18__ECSPI1_MOSI, SPI_PAD_CTRL),
};
static unsigned const tqma6_ecspi1_cs[] = {
IMX_GPIO_NR(3, 19),
};
static void tqma6_iomuxc_spi(void)
{
unsigned i;
for (i = 0; i < ARRAY_SIZE(tqma6_ecspi1_cs); ++i)
gpio_direction_output(tqma6_ecspi1_cs[i], 1);
imx_iomux_v3_setup_multiple_pads(tqma6_ecspi1_pads,
ARRAY_SIZE(tqma6_ecspi1_pads));
}
static struct i2c_pads_info tqma6_i2c3_pads = {
/* I2C3: on board LM75, M24C64, */
.scl = {
.i2c_mode = NEW_PAD_CTRL(MX6_PAD_GPIO_5__I2C3_SCL,
I2C_PAD_CTRL),
.gpio_mode = NEW_PAD_CTRL(MX6_PAD_GPIO_5__GPIO1_IO05,
I2C_PAD_CTRL),
.gp = IMX_GPIO_NR(1, 5)
},
.sda = {
.i2c_mode = NEW_PAD_CTRL(MX6_PAD_GPIO_6__I2C3_SDA,
I2C_PAD_CTRL),
.gpio_mode = NEW_PAD_CTRL(MX6_PAD_GPIO_6__GPIO1_IO06,
I2C_PAD_CTRL),
.gp = IMX_GPIO_NR(1, 6)
}
};
static void tqma6_setup_i2c(void)
{
/* use logical index for bus, e.g. I2C1 -> 0 */
setup_i2c(2, CONFIG_SYS_I2C_SPEED, 0x7f, &tqma6_i2c3_pads);
}
int board_early_init_f(void)
{
return tqma6_bb_board_early_init_f();
}
int board_init(void)
{
/* address of boot parameters */
gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
tqma6_iomuxc_spi();
tqma6_setup_i2c();
tqma6_bb_board_init();
return 0;
}
static const char *tqma6_get_boardname(void)
{
u32 cpurev = get_cpu_rev();
switch ((cpurev & 0xFF000) >> 12) {
case MXC_CPU_MX6SOLO:
return "TQMa6S";
break;
case MXC_CPU_MX6DL:
return "TQMa6DL";
break;
case MXC_CPU_MX6D:
return "TQMa6D";
break;
case MXC_CPU_MX6Q:
return "TQMa6Q";
break;
default:
return "??";
};
}
int board_late_init(void)
{
struct pmic *p;
u32 reg;
setenv("board_name", tqma6_get_boardname());
/*
* configure PFUZE100 PMIC:
* TODO: should go to power_init_board if bus switching is
* fixed in generic power code
*/
power_pfuze100_init(TQMA6_PFUZE100_I2C_BUS);
p = pmic_get("PFUZE100");
if (p && !pmic_probe(p)) {
pmic_reg_read(p, PFUZE100_DEVICEID, ®);
printf("PMIC: PFUZE100 ID=0x%02x\n", reg);
}
tqma6_bb_board_late_init();
return 0;
}
int checkboard(void)
{
printf("Board: %s on a %s\n", tqma6_get_boardname(),
tqma6_bb_get_boardname());
return 0;
}
/*
* Device Tree Support
*/
#if defined(CONFIG_OF_BOARD_SETUP) && defined(CONFIG_OF_LIBFDT)
void ft_board_setup(void *blob, bd_t *bd)
{
/* bring in eMMC dsr settings */
do_fixup_by_path_u32(blob,
"/soc/aips-bus@02100000/usdhc@02198000",
"dsr", tqma6_emmc_dsr, 2);
tqma6_bb_ft_board_setup(blob, bd);
}
#endif /* defined(CONFIG_OF_BOARD_SETUP) && defined(CONFIG_OF_LIBFDT) */
|
