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Markus Niebelcb07d742014-07-18 16:52:44 +02001/*
2 * Copyright (C) 2012 Freescale Semiconductor, Inc.
3 * Author: Fabio Estevam <fabio.estevam@freescale.com>
4 *
5 * Copyright (C) 2013, 2014 TQ Systems (ported SabreSD to TQMa6x)
6 * Author: Markus Niebel <markus.niebel@tq-group.com>
7 *
8 * SPDX-License-Identifier: GPL-2.0+
9 */
10
11#include <asm/arch/clock.h>
12#include <asm/arch/mx6-pins.h>
13#include <asm/arch/imx-regs.h>
14#include <asm/arch/iomux.h>
15#include <asm/arch/sys_proto.h>
Masahiro Yamada1221ce42016-09-21 11:28:55 +090016#include <linux/errno.h>
Markus Niebelcb07d742014-07-18 16:52:44 +020017#include <asm/gpio.h>
18#include <asm/io.h>
Stefano Babic552a8482017-06-29 10:16:06 +020019#include <asm/mach-imx/mxc_i2c.h>
20#include <asm/mach-imx/spi.h>
Markus Niebelcb07d742014-07-18 16:52:44 +020021#include <common.h>
22#include <fsl_esdhc.h>
23#include <libfdt.h>
24#include <i2c.h>
25#include <mmc.h>
26#include <power/pfuze100_pmic.h>
27#include <power/pmic.h>
Stefan Roese8b8ca0d2015-08-05 10:50:50 +020028#include <spi_flash.h>
Markus Niebelcb07d742014-07-18 16:52:44 +020029
30#include "tqma6_bb.h"
31
32DECLARE_GLOBAL_DATA_PTR;
33
34#define USDHC_CLK_PAD_CTRL (PAD_CTL_PUS_47K_UP | PAD_CTL_SPEED_LOW | \
35 PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS)
36
37#define USDHC_PAD_CTRL (PAD_CTL_PUS_47K_UP | PAD_CTL_SPEED_LOW | \
38 PAD_CTL_DSE_80ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS)
39
40#define GPIO_OUT_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_LOW | \
41 PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
42
43#define GPIO_IN_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_LOW | \
44 PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
45
46#define SPI_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
47 PAD_CTL_DSE_80ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS)
48
49#define I2C_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
Markus Niebel03cfff02017-02-03 16:24:59 +010050 PAD_CTL_DSE_80ohm | PAD_CTL_HYS | \
Markus Niebelcb07d742014-07-18 16:52:44 +020051 PAD_CTL_ODE | PAD_CTL_SRE_FAST)
52
53int dram_init(void)
54{
Markus Niebelb6d78102014-11-18 13:22:57 +010055 gd->ram_size = imx_ddr_size();
Markus Niebelcb07d742014-07-18 16:52:44 +020056
57 return 0;
58}
59
60static const uint16_t tqma6_emmc_dsr = 0x0100;
61
62/* eMMC on USDHCI3 always present */
63static iomux_v3_cfg_t const tqma6_usdhc3_pads[] = {
64 NEW_PAD_CTRL(MX6_PAD_SD3_CLK__SD3_CLK, USDHC_PAD_CTRL),
65 NEW_PAD_CTRL(MX6_PAD_SD3_CMD__SD3_CMD, USDHC_PAD_CTRL),
66 NEW_PAD_CTRL(MX6_PAD_SD3_DAT0__SD3_DATA0, USDHC_PAD_CTRL),
67 NEW_PAD_CTRL(MX6_PAD_SD3_DAT1__SD3_DATA1, USDHC_PAD_CTRL),
68 NEW_PAD_CTRL(MX6_PAD_SD3_DAT2__SD3_DATA2, USDHC_PAD_CTRL),
69 NEW_PAD_CTRL(MX6_PAD_SD3_DAT3__SD3_DATA3, USDHC_PAD_CTRL),
70 NEW_PAD_CTRL(MX6_PAD_SD3_DAT4__SD3_DATA4, USDHC_PAD_CTRL),
71 NEW_PAD_CTRL(MX6_PAD_SD3_DAT5__SD3_DATA5, USDHC_PAD_CTRL),
72 NEW_PAD_CTRL(MX6_PAD_SD3_DAT6__SD3_DATA6, USDHC_PAD_CTRL),
73 NEW_PAD_CTRL(MX6_PAD_SD3_DAT7__SD3_DATA7, USDHC_PAD_CTRL),
74 /* eMMC reset */
75 NEW_PAD_CTRL(MX6_PAD_SD3_RST__SD3_RESET, GPIO_OUT_PAD_CTRL),
76};
77
78/*
79 * According to board_mmc_init() the following map is done:
Bin Menga1875592016-02-05 19:30:11 -080080 * (U-Boot device node) (Physical Port)
Markus Niebelcb07d742014-07-18 16:52:44 +020081 * mmc0 eMMC (SD3) on TQMa6
82 * mmc1 .. n optional slots used on baseboard
83 */
84struct fsl_esdhc_cfg tqma6_usdhc_cfg = {
85 .esdhc_base = USDHC3_BASE_ADDR,
86 .max_bus_width = 8,
87};
88
89int board_mmc_getcd(struct mmc *mmc)
90{
91 struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
92 int ret = 0;
93
94 if (cfg->esdhc_base == USDHC3_BASE_ADDR)
95 /* eMMC/uSDHC3 is always present */
96 ret = 1;
97 else
98 ret = tqma6_bb_board_mmc_getcd(mmc);
99
100 return ret;
101}
102
103int board_mmc_getwp(struct mmc *mmc)
104{
105 struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
106 int ret = 0;
107
108 if (cfg->esdhc_base == USDHC3_BASE_ADDR)
109 /* eMMC/uSDHC3 is always present */
110 ret = 0;
111 else
112 ret = tqma6_bb_board_mmc_getwp(mmc);
113
114 return ret;
115}
116
117int board_mmc_init(bd_t *bis)
118{
119 imx_iomux_v3_setup_multiple_pads(tqma6_usdhc3_pads,
120 ARRAY_SIZE(tqma6_usdhc3_pads));
121 tqma6_usdhc_cfg.sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
122 if (fsl_esdhc_initialize(bis, &tqma6_usdhc_cfg)) {
123 puts("Warning: failed to initialize eMMC dev\n");
124 } else {
125 struct mmc *mmc = find_mmc_device(0);
126 if (mmc)
127 mmc_set_dsr(mmc, tqma6_emmc_dsr);
128 }
129
130 tqma6_bb_board_mmc_init(bis);
131
132 return 0;
133}
134
135static iomux_v3_cfg_t const tqma6_ecspi1_pads[] = {
136 /* SS1 */
137 NEW_PAD_CTRL(MX6_PAD_EIM_D19__GPIO3_IO19, SPI_PAD_CTRL),
138 NEW_PAD_CTRL(MX6_PAD_EIM_D16__ECSPI1_SCLK, SPI_PAD_CTRL),
139 NEW_PAD_CTRL(MX6_PAD_EIM_D17__ECSPI1_MISO, SPI_PAD_CTRL),
140 NEW_PAD_CTRL(MX6_PAD_EIM_D18__ECSPI1_MOSI, SPI_PAD_CTRL),
141};
142
Markus Niebel1719d492014-10-23 15:47:05 +0200143#define TQMA6_SF_CS_GPIO IMX_GPIO_NR(3, 19)
144
Markus Niebelcb07d742014-07-18 16:52:44 +0200145static unsigned const tqma6_ecspi1_cs[] = {
Markus Niebel1719d492014-10-23 15:47:05 +0200146 TQMA6_SF_CS_GPIO,
Markus Niebelcb07d742014-07-18 16:52:44 +0200147};
148
Stefan Roese34ee7862015-03-12 13:34:30 +0100149__weak void tqma6_iomuxc_spi(void)
Markus Niebelcb07d742014-07-18 16:52:44 +0200150{
151 unsigned i;
152
153 for (i = 0; i < ARRAY_SIZE(tqma6_ecspi1_cs); ++i)
154 gpio_direction_output(tqma6_ecspi1_cs[i], 1);
155 imx_iomux_v3_setup_multiple_pads(tqma6_ecspi1_pads,
156 ARRAY_SIZE(tqma6_ecspi1_pads));
157}
158
Markus Niebel1719d492014-10-23 15:47:05 +0200159int board_spi_cs_gpio(unsigned bus, unsigned cs)
160{
161 return ((bus == CONFIG_SF_DEFAULT_BUS) &&
162 (cs == CONFIG_SF_DEFAULT_CS)) ? TQMA6_SF_CS_GPIO : -1;
163}
164
Markus Niebelcb07d742014-07-18 16:52:44 +0200165static struct i2c_pads_info tqma6_i2c3_pads = {
166 /* I2C3: on board LM75, M24C64, */
167 .scl = {
168 .i2c_mode = NEW_PAD_CTRL(MX6_PAD_GPIO_5__I2C3_SCL,
169 I2C_PAD_CTRL),
170 .gpio_mode = NEW_PAD_CTRL(MX6_PAD_GPIO_5__GPIO1_IO05,
171 I2C_PAD_CTRL),
172 .gp = IMX_GPIO_NR(1, 5)
173 },
174 .sda = {
175 .i2c_mode = NEW_PAD_CTRL(MX6_PAD_GPIO_6__I2C3_SDA,
176 I2C_PAD_CTRL),
177 .gpio_mode = NEW_PAD_CTRL(MX6_PAD_GPIO_6__GPIO1_IO06,
178 I2C_PAD_CTRL),
179 .gp = IMX_GPIO_NR(1, 6)
180 }
181};
182
183static void tqma6_setup_i2c(void)
184{
Markus Niebelfd53ec52014-11-18 13:22:56 +0100185 int ret;
186 /*
187 * use logical index for bus, e.g. I2C1 -> 0
188 * warn on error
189 */
190 ret = setup_i2c(2, CONFIG_SYS_I2C_SPEED, 0x7f, &tqma6_i2c3_pads);
191 if (ret)
192 printf("setup I2C3 failed: %d\n", ret);
Markus Niebelcb07d742014-07-18 16:52:44 +0200193}
194
195int board_early_init_f(void)
196{
197 return tqma6_bb_board_early_init_f();
198}
199
200int board_init(void)
201{
202 /* address of boot parameters */
203 gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
204
205 tqma6_iomuxc_spi();
206 tqma6_setup_i2c();
207
208 tqma6_bb_board_init();
209
210 return 0;
211}
212
213static const char *tqma6_get_boardname(void)
214{
215 u32 cpurev = get_cpu_rev();
216
217 switch ((cpurev & 0xFF000) >> 12) {
218 case MXC_CPU_MX6SOLO:
219 return "TQMa6S";
220 break;
221 case MXC_CPU_MX6DL:
222 return "TQMa6DL";
223 break;
224 case MXC_CPU_MX6D:
225 return "TQMa6D";
226 break;
227 case MXC_CPU_MX6Q:
228 return "TQMa6Q";
229 break;
230 default:
231 return "??";
232 };
233}
234
Markus Niebeld7d8e8e2017-02-03 16:24:58 +0100235/* setup board specific PMIC */
236int power_init_board(void)
Markus Niebelcb07d742014-07-18 16:52:44 +0200237{
238 struct pmic *p;
Markus Niebeld7d8e8e2017-02-03 16:24:58 +0100239 u32 reg, rev;
Markus Niebelcb07d742014-07-18 16:52:44 +0200240
Markus Niebelcb07d742014-07-18 16:52:44 +0200241 power_pfuze100_init(TQMA6_PFUZE100_I2C_BUS);
Fabio Estevam676ac242014-08-01 08:50:03 -0300242 p = pmic_get("PFUZE100");
Markus Niebelcb07d742014-07-18 16:52:44 +0200243 if (p && !pmic_probe(p)) {
244 pmic_reg_read(p, PFUZE100_DEVICEID, &reg);
Markus Niebeld7d8e8e2017-02-03 16:24:58 +0100245 pmic_reg_read(p, PFUZE100_REVID, &rev);
246 printf("PMIC: PFUZE100 ID=0x%02x REV=0x%02x\n", reg, rev);
Markus Niebelcb07d742014-07-18 16:52:44 +0200247 }
248
Markus Niebeld7d8e8e2017-02-03 16:24:58 +0100249 return 0;
250}
251
252int board_late_init(void)
253{
Simon Glass382bee52017-08-03 12:22:09 -0600254 env_set("board_name", tqma6_get_boardname());
Markus Niebeld7d8e8e2017-02-03 16:24:58 +0100255
Markus Niebelcb07d742014-07-18 16:52:44 +0200256 tqma6_bb_board_late_init();
257
258 return 0;
259}
260
261int checkboard(void)
262{
263 printf("Board: %s on a %s\n", tqma6_get_boardname(),
264 tqma6_bb_get_boardname());
265 return 0;
266}
267
268/*
269 * Device Tree Support
270 */
271#if defined(CONFIG_OF_BOARD_SETUP) && defined(CONFIG_OF_LIBFDT)
Markus Niebel468fb1e2017-02-28 16:37:33 +0100272#define MODELSTRLEN 32u
Simon Glasse895a4b2014-10-23 18:58:47 -0600273int ft_board_setup(void *blob, bd_t *bd)
Markus Niebelcb07d742014-07-18 16:52:44 +0200274{
Markus Niebel468fb1e2017-02-28 16:37:33 +0100275 char modelstr[MODELSTRLEN];
276
277 snprintf(modelstr, MODELSTRLEN, "TQ %s on %s", tqma6_get_boardname(),
278 tqma6_bb_get_boardname());
279 do_fixup_by_path_string(blob, "/", "model", modelstr);
280 fdt_fixup_memory(blob, (u64)PHYS_SDRAM, (u64)gd->ram_size);
Markus Niebelcb07d742014-07-18 16:52:44 +0200281 /* bring in eMMC dsr settings */
282 do_fixup_by_path_u32(blob,
283 "/soc/aips-bus@02100000/usdhc@02198000",
284 "dsr", tqma6_emmc_dsr, 2);
285 tqma6_bb_ft_board_setup(blob, bd);
Simon Glasse895a4b2014-10-23 18:58:47 -0600286
287 return 0;
Markus Niebelcb07d742014-07-18 16:52:44 +0200288}
289#endif /* defined(CONFIG_OF_BOARD_SETUP) && defined(CONFIG_OF_LIBFDT) */