1 /*
2  * Copyright (C) 2015 Freescale Semiconductor, Inc.
3  *
4  * SPDX-License-Identifier:	GPL-2.0+
5  */
6 
7 #include <asm/arch/clock.h>
8 #include <asm/arch/imx-regs.h>
9 #include <asm/arch/mx7-pins.h>
10 #include <asm/arch/sys_proto.h>
11 #include <asm/gpio.h>
12 #include <asm/mach-imx/iomux-v3.h>
13 #include <asm/io.h>
14 #include <linux/sizes.h>
15 #include <common.h>
16 #include <fsl_esdhc.h>
17 #include <mmc.h>
18 #include <miiphy.h>
19 #include <netdev.h>
20 #include <power/pmic.h>
21 #include <power/pfuze3000_pmic.h>
22 #include "../common/pfuze.h"
23 #include <i2c.h>
24 #include <asm/mach-imx/mxc_i2c.h>
25 #include <asm/arch/crm_regs.h>
26 
27 DECLARE_GLOBAL_DATA_PTR;
28 
29 #define UART_PAD_CTRL  (PAD_CTL_DSE_3P3V_49OHM | \
30 	PAD_CTL_PUS_PU100KOHM | PAD_CTL_HYS)
31 
32 #define ENET_PAD_CTRL  (PAD_CTL_PUS_PU100KOHM | PAD_CTL_DSE_3P3V_49OHM)
33 #define ENET_PAD_CTRL_MII  (PAD_CTL_DSE_3P3V_32OHM)
34 
35 #define ENET_RX_PAD_CTRL  (PAD_CTL_PUS_PU100KOHM | PAD_CTL_DSE_3P3V_49OHM)
36 
37 #define LCD_PAD_CTRL    (PAD_CTL_HYS | PAD_CTL_PUS_PU100KOHM | \
38 	PAD_CTL_DSE_3P3V_49OHM)
39 
40 #define QSPI_PAD_CTRL	\
41 	(PAD_CTL_DSE_3P3V_49OHM | PAD_CTL_PUE | PAD_CTL_PUS_PU47KOHM)
42 
43 #define NAND_PAD_CTRL (PAD_CTL_DSE_3P3V_49OHM | PAD_CTL_SRE_SLOW | PAD_CTL_HYS)
44 
45 #define SPI_PAD_CTRL \
46   (PAD_CTL_HYS | PAD_CTL_DSE_3P3V_49OHM | PAD_CTL_SRE_FAST)
47 
48 #define NAND_PAD_READY0_CTRL (PAD_CTL_DSE_3P3V_49OHM | PAD_CTL_PUS_PU5KOHM)
49 
50 #ifdef CONFIG_MXC_SPI
51 static iomux_v3_cfg_t const ecspi3_pads[] = {
52     MX7D_PAD_SAI2_RX_DATA__ECSPI3_SCLK | MUX_PAD_CTRL(SPI_PAD_CTRL),
53     MX7D_PAD_SAI2_TX_SYNC__ECSPI3_MISO | MUX_PAD_CTRL(SPI_PAD_CTRL),
54     MX7D_PAD_SAI2_TX_BCLK__ECSPI3_MOSI | MUX_PAD_CTRL(SPI_PAD_CTRL),
55     MX7D_PAD_SAI2_TX_DATA__GPIO6_IO22 | MUX_PAD_CTRL(NO_PAD_CTRL),
56 };
57 
58 int board_spi_cs_gpio(unsigned bus, unsigned cs)
59 {
60          return (bus == 2 && cs == 0) ? (IMX_GPIO_NR(6, 22)) : -1;
61 }
62 
63 static void setup_spi(void)
64 {
65          imx_iomux_v3_setup_multiple_pads(ecspi3_pads, ARRAY_SIZE(ecspi3_pads));
66 }
67 #endif
68 
69 int dram_init(void)
70 {
71 	gd->ram_size = PHYS_SDRAM_SIZE;
72 
73 	return 0;
74 }
75 
76 static iomux_v3_cfg_t const wdog_pads[] = {
77 	MX7D_PAD_GPIO1_IO00__WDOG1_WDOG_B | MUX_PAD_CTRL(NO_PAD_CTRL),
78 };
79 
80 static iomux_v3_cfg_t const uart1_pads[] = {
81 	MX7D_PAD_UART1_TX_DATA__UART1_DCE_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
82 	MX7D_PAD_UART1_RX_DATA__UART1_DCE_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
83 };
84 
85 #ifdef CONFIG_NAND_MXS
86 static iomux_v3_cfg_t const gpmi_pads[] = {
87 	MX7D_PAD_SD3_DATA0__NAND_DATA00 | MUX_PAD_CTRL(NAND_PAD_CTRL),
88 	MX7D_PAD_SD3_DATA1__NAND_DATA01 | MUX_PAD_CTRL(NAND_PAD_CTRL),
89 	MX7D_PAD_SD3_DATA2__NAND_DATA02 | MUX_PAD_CTRL(NAND_PAD_CTRL),
90 	MX7D_PAD_SD3_DATA3__NAND_DATA03 | MUX_PAD_CTRL(NAND_PAD_CTRL),
91 	MX7D_PAD_SD3_DATA4__NAND_DATA04 | MUX_PAD_CTRL(NAND_PAD_CTRL),
92 	MX7D_PAD_SD3_DATA5__NAND_DATA05 | MUX_PAD_CTRL(NAND_PAD_CTRL),
93 	MX7D_PAD_SD3_DATA6__NAND_DATA06 | MUX_PAD_CTRL(NAND_PAD_CTRL),
94 	MX7D_PAD_SD3_DATA7__NAND_DATA07 | MUX_PAD_CTRL(NAND_PAD_CTRL),
95 	MX7D_PAD_SD3_CLK__NAND_CLE	| MUX_PAD_CTRL(NAND_PAD_CTRL),
96 	MX7D_PAD_SD3_CMD__NAND_ALE	| MUX_PAD_CTRL(NAND_PAD_CTRL),
97 	MX7D_PAD_SD3_STROBE__NAND_RE_B	| MUX_PAD_CTRL(NAND_PAD_CTRL),
98 	MX7D_PAD_SD3_RESET_B__NAND_WE_B	| MUX_PAD_CTRL(NAND_PAD_CTRL),
99 	MX7D_PAD_SAI1_MCLK__NAND_WP_B	| MUX_PAD_CTRL(NAND_PAD_CTRL),
100 	MX7D_PAD_SAI1_RX_BCLK__NAND_CE3_B	| MUX_PAD_CTRL(NAND_PAD_CTRL),
101 	MX7D_PAD_SAI1_RX_SYNC__NAND_CE2_B	| MUX_PAD_CTRL(NAND_PAD_CTRL),
102 	MX7D_PAD_SAI1_RX_DATA__NAND_CE1_B	| MUX_PAD_CTRL(NAND_PAD_CTRL),
103 	MX7D_PAD_SAI1_TX_BCLK__NAND_CE0_B	| MUX_PAD_CTRL(NAND_PAD_CTRL),
104 	MX7D_PAD_SAI1_TX_SYNC__NAND_DQS	| MUX_PAD_CTRL(NAND_PAD_CTRL),
105 	MX7D_PAD_SAI1_TX_DATA__NAND_READY_B	| MUX_PAD_CTRL(NAND_PAD_READY0_CTRL),
106 };
107 
108 static void setup_gpmi_nand(void)
109 {
110 	imx_iomux_v3_setup_multiple_pads(gpmi_pads, ARRAY_SIZE(gpmi_pads));
111 
112 	/* NAND_USDHC_BUS_CLK is set in rom */
113 	set_clk_nand();
114 }
115 #endif
116 
117 #ifdef CONFIG_VIDEO_MXS
118 static iomux_v3_cfg_t const lcd_pads[] = {
119 	MX7D_PAD_LCD_CLK__LCD_CLK | MUX_PAD_CTRL(LCD_PAD_CTRL),
120 	MX7D_PAD_LCD_ENABLE__LCD_ENABLE | MUX_PAD_CTRL(LCD_PAD_CTRL),
121 	MX7D_PAD_LCD_HSYNC__LCD_HSYNC | MUX_PAD_CTRL(LCD_PAD_CTRL),
122 	MX7D_PAD_LCD_VSYNC__LCD_VSYNC | MUX_PAD_CTRL(LCD_PAD_CTRL),
123 	MX7D_PAD_LCD_DATA00__LCD_DATA0 | MUX_PAD_CTRL(LCD_PAD_CTRL),
124 	MX7D_PAD_LCD_DATA01__LCD_DATA1 | MUX_PAD_CTRL(LCD_PAD_CTRL),
125 	MX7D_PAD_LCD_DATA02__LCD_DATA2 | MUX_PAD_CTRL(LCD_PAD_CTRL),
126 	MX7D_PAD_LCD_DATA03__LCD_DATA3 | MUX_PAD_CTRL(LCD_PAD_CTRL),
127 	MX7D_PAD_LCD_DATA04__LCD_DATA4 | MUX_PAD_CTRL(LCD_PAD_CTRL),
128 	MX7D_PAD_LCD_DATA05__LCD_DATA5 | MUX_PAD_CTRL(LCD_PAD_CTRL),
129 	MX7D_PAD_LCD_DATA06__LCD_DATA6 | MUX_PAD_CTRL(LCD_PAD_CTRL),
130 	MX7D_PAD_LCD_DATA07__LCD_DATA7 | MUX_PAD_CTRL(LCD_PAD_CTRL),
131 	MX7D_PAD_LCD_DATA08__LCD_DATA8 | MUX_PAD_CTRL(LCD_PAD_CTRL),
132 	MX7D_PAD_LCD_DATA09__LCD_DATA9 | MUX_PAD_CTRL(LCD_PAD_CTRL),
133 	MX7D_PAD_LCD_DATA10__LCD_DATA10 | MUX_PAD_CTRL(LCD_PAD_CTRL),
134 	MX7D_PAD_LCD_DATA11__LCD_DATA11 | MUX_PAD_CTRL(LCD_PAD_CTRL),
135 	MX7D_PAD_LCD_DATA12__LCD_DATA12 | MUX_PAD_CTRL(LCD_PAD_CTRL),
136 	MX7D_PAD_LCD_DATA13__LCD_DATA13 | MUX_PAD_CTRL(LCD_PAD_CTRL),
137 	MX7D_PAD_LCD_DATA14__LCD_DATA14 | MUX_PAD_CTRL(LCD_PAD_CTRL),
138 	MX7D_PAD_LCD_DATA15__LCD_DATA15 | MUX_PAD_CTRL(LCD_PAD_CTRL),
139 	MX7D_PAD_LCD_DATA16__LCD_DATA16 | MUX_PAD_CTRL(LCD_PAD_CTRL),
140 	MX7D_PAD_LCD_DATA17__LCD_DATA17 | MUX_PAD_CTRL(LCD_PAD_CTRL),
141 	MX7D_PAD_LCD_DATA18__LCD_DATA18 | MUX_PAD_CTRL(LCD_PAD_CTRL),
142 	MX7D_PAD_LCD_DATA19__LCD_DATA19 | MUX_PAD_CTRL(LCD_PAD_CTRL),
143 	MX7D_PAD_LCD_DATA20__LCD_DATA20 | MUX_PAD_CTRL(LCD_PAD_CTRL),
144 	MX7D_PAD_LCD_DATA21__LCD_DATA21 | MUX_PAD_CTRL(LCD_PAD_CTRL),
145 	MX7D_PAD_LCD_DATA22__LCD_DATA22 | MUX_PAD_CTRL(LCD_PAD_CTRL),
146 	MX7D_PAD_LCD_DATA23__LCD_DATA23 | MUX_PAD_CTRL(LCD_PAD_CTRL),
147 
148 	MX7D_PAD_LCD_RESET__GPIO3_IO4	| MUX_PAD_CTRL(LCD_PAD_CTRL),
149 };
150 
151 static iomux_v3_cfg_t const pwm_pads[] = {
152 	/* Use GPIO for Brightness adjustment, duty cycle = period */
153 	MX7D_PAD_GPIO1_IO01__GPIO1_IO1 | MUX_PAD_CTRL(NO_PAD_CTRL),
154 };
155 
156 static int setup_lcd(void)
157 {
158 	imx_iomux_v3_setup_multiple_pads(lcd_pads, ARRAY_SIZE(lcd_pads));
159 
160 	imx_iomux_v3_setup_multiple_pads(pwm_pads, ARRAY_SIZE(pwm_pads));
161 
162 	/* Reset LCD */
163 	gpio_request(IMX_GPIO_NR(3, 4), "lcd reset");
164 	gpio_direction_output(IMX_GPIO_NR(3, 4) , 0);
165 	udelay(500);
166 	gpio_direction_output(IMX_GPIO_NR(3, 4) , 1);
167 
168 	/* Set Brightness to high */
169 	gpio_request(IMX_GPIO_NR(1, 1), "lcd backlight");
170 	gpio_direction_output(IMX_GPIO_NR(1, 1) , 1);
171 
172 	return 0;
173 }
174 #endif
175 
176 #ifdef CONFIG_FEC_MXC
177 static iomux_v3_cfg_t const fec1_pads[] = {
178 	MX7D_PAD_ENET1_RGMII_RX_CTL__ENET1_RGMII_RX_CTL | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
179 	MX7D_PAD_ENET1_RGMII_RD0__ENET1_RGMII_RD0 | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
180 	MX7D_PAD_ENET1_RGMII_RD1__ENET1_RGMII_RD1 | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
181 	MX7D_PAD_ENET1_RGMII_RD2__ENET1_RGMII_RD2 | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
182 	MX7D_PAD_ENET1_RGMII_RD3__ENET1_RGMII_RD3 | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
183 	MX7D_PAD_ENET1_RGMII_RXC__ENET1_RGMII_RXC | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
184 	MX7D_PAD_ENET1_RGMII_TX_CTL__ENET1_RGMII_TX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL),
185 	MX7D_PAD_ENET1_RGMII_TD0__ENET1_RGMII_TD0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
186 	MX7D_PAD_ENET1_RGMII_TD1__ENET1_RGMII_TD1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
187 	MX7D_PAD_ENET1_RGMII_TD2__ENET1_RGMII_TD2 | MUX_PAD_CTRL(ENET_PAD_CTRL),
188 	MX7D_PAD_ENET1_RGMII_TD3__ENET1_RGMII_TD3 | MUX_PAD_CTRL(ENET_PAD_CTRL),
189 	MX7D_PAD_ENET1_RGMII_TXC__ENET1_RGMII_TXC | MUX_PAD_CTRL(ENET_PAD_CTRL),
190 	MX7D_PAD_GPIO1_IO10__ENET1_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL_MII),
191 	MX7D_PAD_GPIO1_IO11__ENET1_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL_MII),
192 };
193 
194 static void setup_iomux_fec(void)
195 {
196 	imx_iomux_v3_setup_multiple_pads(fec1_pads, ARRAY_SIZE(fec1_pads));
197 }
198 #endif
199 
200 static void setup_iomux_uart(void)
201 {
202 	imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
203 }
204 
205 int board_mmc_get_env_dev(int devno)
206 {
207 	if (devno == 2)
208 		devno--;
209 
210 	return devno;
211 }
212 
213 int mmc_map_to_kernel_blk(int dev_no)
214 {
215 	if (dev_no == 1)
216 		dev_no++;
217 
218 	return dev_no;
219 }
220 
221 #ifdef CONFIG_FEC_MXC
222 int board_eth_init(bd_t *bis)
223 {
224 	int ret;
225 	unsigned int gpio;
226 
227 	ret = gpio_lookup_name("gpio_spi@0_5", NULL, NULL, &gpio);
228 	if (ret) {
229 		printf("GPIO: 'gpio_spi@0_5' not found\n");
230 		return -ENODEV;
231 	}
232 
233 	ret = gpio_request(gpio, "fec_rst");
234 	if (ret && ret != -EBUSY) {
235 		printf("gpio: requesting pin %u failed\n", gpio);
236 		return ret;
237 	}
238 
239 	gpio_direction_output(gpio, 0);
240 	udelay(500);
241 	gpio_direction_output(gpio, 1);
242 
243 	setup_iomux_fec();
244 
245 	ret = fecmxc_initialize_multi(bis, 0,
246 		CONFIG_FEC_MXC_PHYADDR, IMX_FEC_BASE);
247 	if (ret)
248 		printf("FEC1 MXC: %s:failed\n", __func__);
249 
250 	return ret;
251 }
252 
253 static int setup_fec(void)
254 {
255 	struct iomuxc_gpr_base_regs *const iomuxc_gpr_regs
256 		= (struct iomuxc_gpr_base_regs *) IOMUXC_GPR_BASE_ADDR;
257 
258 	/* Use 125M anatop REF_CLK1 for ENET1, clear gpr1[13], gpr1[17]*/
259 	clrsetbits_le32(&iomuxc_gpr_regs->gpr[1],
260 		(IOMUXC_GPR_GPR1_GPR_ENET1_TX_CLK_SEL_MASK |
261 		 IOMUXC_GPR_GPR1_GPR_ENET1_CLK_DIR_MASK), 0);
262 
263 	return set_clk_enet(ENET_125MHZ);
264 }
265 
266 
267 int board_phy_config(struct phy_device *phydev)
268 {
269 	/* enable rgmii rxc skew and phy mode select to RGMII copper */
270 	phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x21);
271 	phy_write(phydev, MDIO_DEVAD_NONE, 0x1f, 0x7ea8);
272 	phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x2f);
273 	phy_write(phydev, MDIO_DEVAD_NONE, 0x1f, 0x71b7);
274 
275 	if (phydev->drv->config)
276 		phydev->drv->config(phydev);
277 	return 0;
278 }
279 #endif
280 
281 #ifdef CONFIG_FSL_QSPI
282 static iomux_v3_cfg_t const quadspi_pads[] = {
283 	MX7D_PAD_EPDC_DATA00__QSPI_A_DATA0 | MUX_PAD_CTRL(QSPI_PAD_CTRL),
284 	MX7D_PAD_EPDC_DATA01__QSPI_A_DATA1 | MUX_PAD_CTRL(QSPI_PAD_CTRL),
285 	MX7D_PAD_EPDC_DATA02__QSPI_A_DATA2 | MUX_PAD_CTRL(QSPI_PAD_CTRL),
286 	MX7D_PAD_EPDC_DATA03__QSPI_A_DATA3 | MUX_PAD_CTRL(QSPI_PAD_CTRL),
287 	MX7D_PAD_EPDC_DATA05__QSPI_A_SCLK  | MUX_PAD_CTRL(QSPI_PAD_CTRL),
288 	MX7D_PAD_EPDC_DATA06__QSPI_A_SS0_B | MUX_PAD_CTRL(QSPI_PAD_CTRL),
289 };
290 
291 int board_qspi_init(void)
292 {
293 	/* Set the iomux */
294 	imx_iomux_v3_setup_multiple_pads(quadspi_pads,
295 					 ARRAY_SIZE(quadspi_pads));
296 
297 	/* Set the clock */
298 	set_clk_qspi();
299 
300 	return 0;
301 }
302 #endif
303 
304 int board_early_init_f(void)
305 {
306 	setup_iomux_uart();
307 
308 	return 0;
309 }
310 
311 int board_init(void)
312 {
313 	/* address of boot parameters */
314 	gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
315 
316 #ifdef CONFIG_FEC_MXC
317 	setup_fec();
318 #endif
319 
320 #ifdef CONFIG_NAND_MXS
321 	setup_gpmi_nand();
322 #endif
323 
324 #ifdef CONFIG_VIDEO_MXS
325 	setup_lcd();
326 #endif
327 
328 #ifdef CONFIG_FSL_QSPI
329 	board_qspi_init();
330 #endif
331 
332 #ifdef CONFIG_MXC_SPI
333        setup_spi();
334 #endif
335 
336 	return 0;
337 }
338 
339 #ifdef CONFIG_DM_PMIC
340 int power_init_board(void)
341 {
342 	struct udevice *dev;
343 	int ret, dev_id, rev_id;
344 
345 	ret = pmic_get("pfuze3000", &dev);
346 	if (ret == -ENODEV)
347 		return 0;
348 	if (ret != 0)
349 		return ret;
350 
351 	dev_id = pmic_reg_read(dev, PFUZE3000_DEVICEID);
352 	rev_id = pmic_reg_read(dev, PFUZE3000_REVID);
353 	printf("PMIC: PFUZE3000 DEV_ID=0x%x REV_ID=0x%x\n", dev_id, rev_id);
354 
355 	pmic_clrsetbits(dev, PFUZE3000_LDOGCTL, 0, 1);
356 
357 	/*
358 	 * Set the voltage of VLDO4 output to 2.8V which feeds
359 	 * the MIPI DSI and MIPI CSI inputs.
360 	 */
361 	pmic_clrsetbits(dev, PFUZE3000_VLD4CTL, 0xF, 0xA);
362 
363 	return 0;
364 }
365 #endif
366 
367 int board_late_init(void)
368 {
369 	struct wdog_regs *wdog = (struct wdog_regs *)WDOG1_BASE_ADDR;
370 
371 	imx_iomux_v3_setup_multiple_pads(wdog_pads, ARRAY_SIZE(wdog_pads));
372 
373 	set_wdog_reset(wdog);
374 
375 	/*
376 	 * Do not assert internal WDOG_RESET_B_DEB(controlled by bit 4),
377 	 * since we use PMIC_PWRON to reset the board.
378 	 */
379 	clrsetbits_le16(&wdog->wcr, 0, 0x10);
380 
381 	return 0;
382 }
383 
384 int checkboard(void)
385 {
386 	char *mode;
387 
388 	if (IS_ENABLED(CONFIG_ARMV7_BOOT_SEC_DEFAULT))
389 		mode = "secure";
390 	else
391 		mode = "non-secure";
392 
393 	printf("Board: i.MX7D SABRESD in %s mode\n", mode);
394 
395 	return 0;
396 }
397