1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Copyright (C) 2010-2013 Freescale Semiconductor, Inc.
4  * Copyright (C) 2013, Boundary Devices <info@boundarydevices.com>
5  * Copyright (C) 2014-2016, Toradex AG
6  * copied from nitrogen6x
7  */
8 
9 #include <common.h>
10 #include <dm.h>
11 #include <environment.h>
12 #include <asm/arch/clock.h>
13 #include <asm/arch/crm_regs.h>
14 #include <asm/arch/mxc_hdmi.h>
15 #include <asm/arch/imx-regs.h>
16 #include <asm/arch/iomux.h>
17 #include <asm/arch/sys_proto.h>
18 #include <asm/arch/mx6-pins.h>
19 #include <asm/arch/mx6-ddr.h>
20 #include <asm/bootm.h>
21 #include <asm/gpio.h>
22 #include <asm/io.h>
23 #include <asm/mach-imx/iomux-v3.h>
24 #include <asm/mach-imx/mxc_i2c.h>
25 #include <asm/mach-imx/sata.h>
26 #include <asm/mach-imx/boot_mode.h>
27 #include <asm/mach-imx/video.h>
28 #include <dm/platform_data/serial_mxc.h>
29 #include <dm/platdata.h>
30 #include <fsl_esdhc.h>
31 #include <i2c.h>
32 #include <input.h>
33 #include <imx_thermal.h>
34 #include <linux/errno.h>
35 #include <malloc.h>
36 #include <mmc.h>
37 #include <micrel.h>
38 #include <miiphy.h>
39 #include <netdev.h>
40 
41 #include "../common/tdx-cfg-block.h"
42 #ifdef CONFIG_TDX_CMD_IMX_MFGR
43 #include "pf0100.h"
44 #endif
45 
46 DECLARE_GLOBAL_DATA_PTR;
47 
48 #define UART_PAD_CTRL  (PAD_CTL_PUS_100K_UP |			\
49 	PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm |			\
50 	PAD_CTL_SRE_FAST  | PAD_CTL_HYS)
51 
52 #define USDHC_PAD_CTRL (PAD_CTL_PUS_47K_UP |			\
53 	PAD_CTL_SPEED_LOW | PAD_CTL_DSE_80ohm |			\
54 	PAD_CTL_SRE_FAST  | PAD_CTL_HYS)
55 
56 #define ENET_PAD_CTRL  (PAD_CTL_PUS_100K_UP |			\
57 	PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
58 
59 #define SPI_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_SPEED_MED |		\
60 	PAD_CTL_DSE_40ohm     | PAD_CTL_SRE_FAST)
61 
62 #define BUTTON_PAD_CTRL (PAD_CTL_PUS_100K_UP |			\
63 	PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
64 
65 #define I2C_PAD_CTRL	(PAD_CTL_PUS_100K_UP |			\
66 	PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS |	\
67 	PAD_CTL_ODE | PAD_CTL_SRE_FAST)
68 
69 #define WEAK_PULLUP	(PAD_CTL_PUS_100K_UP |			\
70 	PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS |	\
71 	PAD_CTL_SRE_SLOW)
72 
73 #define NO_PULLUP	(					\
74 	PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS |	\
75 	PAD_CTL_SRE_SLOW)
76 
77 #define WEAK_PULLDOWN	(PAD_CTL_PUS_100K_DOWN |		\
78 	PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm |			\
79 	PAD_CTL_HYS | PAD_CTL_SRE_SLOW)
80 
81 #define TRISTATE	(PAD_CTL_HYS | PAD_CTL_SPEED_MED)
82 
83 #define OUTPUT_40OHM (PAD_CTL_SPEED_MED|PAD_CTL_DSE_40ohm)
84 
85 #define OUTPUT_RGB (PAD_CTL_SPEED_MED|PAD_CTL_DSE_60ohm|PAD_CTL_SRE_FAST)
86 
dram_init(void)87 int dram_init(void)
88 {
89 	/* use the DDR controllers configured size */
90 	gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE,
91 				    (ulong)imx_ddr_size());
92 
93 	return 0;
94 }
95 
96 /* Apalis UART1 */
97 iomux_v3_cfg_t const uart1_pads_dce[] = {
98 	MX6_PAD_CSI0_DAT10__UART1_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
99 	MX6_PAD_CSI0_DAT11__UART1_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
100 };
101 iomux_v3_cfg_t const uart1_pads_dte[] = {
102 	MX6_PAD_CSI0_DAT10__UART1_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
103 	MX6_PAD_CSI0_DAT11__UART1_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
104 };
105 
106 #define PC MUX_PAD_CTRL(I2C_PAD_CTRL)
107 /* Apalis I2C1 */
108 struct i2c_pads_info i2c_pad_info1 = {
109 	.scl = {
110 		.i2c_mode = MX6_PAD_CSI0_DAT9__I2C1_SCL | PC,
111 		.gpio_mode = MX6_PAD_CSI0_DAT9__GPIO5_IO27 | PC,
112 		.gp = IMX_GPIO_NR(5, 27)
113 	},
114 	.sda = {
115 		.i2c_mode = MX6_PAD_CSI0_DAT8__I2C1_SDA | PC,
116 		.gpio_mode = MX6_PAD_CSI0_DAT8__GPIO5_IO26 | PC,
117 		.gp = IMX_GPIO_NR(5, 26)
118 	}
119 };
120 
121 /* Apalis local, PMIC, SGTL5000, STMPE811 */
122 struct i2c_pads_info i2c_pad_info_loc = {
123 	.scl = {
124 		.i2c_mode = MX6_PAD_KEY_COL3__I2C2_SCL | PC,
125 		.gpio_mode = MX6_PAD_KEY_COL3__GPIO4_IO12 | PC,
126 		.gp = IMX_GPIO_NR(4, 12)
127 	},
128 	.sda = {
129 		.i2c_mode = MX6_PAD_KEY_ROW3__I2C2_SDA | PC,
130 		.gpio_mode = MX6_PAD_KEY_ROW3__GPIO4_IO13 | PC,
131 		.gp = IMX_GPIO_NR(4, 13)
132 	}
133 };
134 
135 /* Apalis I2C3 / CAM */
136 struct i2c_pads_info i2c_pad_info3 = {
137 	.scl = {
138 		.i2c_mode = MX6_PAD_EIM_D17__I2C3_SCL | PC,
139 		.gpio_mode = MX6_PAD_EIM_D17__GPIO3_IO17 | PC,
140 		.gp = IMX_GPIO_NR(3, 17)
141 	},
142 	.sda = {
143 		.i2c_mode = MX6_PAD_EIM_D18__I2C3_SDA | PC,
144 		.gpio_mode = MX6_PAD_EIM_D18__GPIO3_IO18 | PC,
145 		.gp = IMX_GPIO_NR(3, 18)
146 	}
147 };
148 
149 /* Apalis I2C2 / DDC */
150 struct i2c_pads_info i2c_pad_info_ddc = {
151 	.scl = {
152 		.i2c_mode = MX6_PAD_EIM_EB2__HDMI_TX_DDC_SCL | PC,
153 		.gpio_mode = MX6_PAD_EIM_EB2__GPIO2_IO30 | PC,
154 		.gp = IMX_GPIO_NR(2, 30)
155 	},
156 	.sda = {
157 		.i2c_mode = MX6_PAD_EIM_D16__HDMI_TX_DDC_SDA | PC,
158 		.gpio_mode = MX6_PAD_EIM_D16__GPIO3_IO16 | PC,
159 		.gp = IMX_GPIO_NR(3, 16)
160 	}
161 };
162 
163 /* Apalis MMC1 */
164 iomux_v3_cfg_t const usdhc1_pads[] = {
165 	MX6_PAD_SD1_CLK__SD1_CLK   | MUX_PAD_CTRL(USDHC_PAD_CTRL),
166 	MX6_PAD_SD1_CMD__SD1_CMD   | MUX_PAD_CTRL(USDHC_PAD_CTRL),
167 	MX6_PAD_SD1_DAT0__SD1_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
168 	MX6_PAD_SD1_DAT1__SD1_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
169 	MX6_PAD_SD1_DAT2__SD1_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
170 	MX6_PAD_SD1_DAT3__SD1_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
171 	MX6_PAD_NANDF_D0__SD1_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
172 	MX6_PAD_NANDF_D1__SD1_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
173 	MX6_PAD_NANDF_D2__SD1_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
174 	MX6_PAD_NANDF_D3__SD1_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
175 	MX6_PAD_DI0_PIN4__GPIO4_IO20   | MUX_PAD_CTRL(NO_PAD_CTRL), /* CD */
176 #	define GPIO_MMC_CD IMX_GPIO_NR(4, 20)
177 };
178 
179 /* Apalis SD1 */
180 iomux_v3_cfg_t const usdhc2_pads[] = {
181 	MX6_PAD_SD2_CLK__SD2_CLK    | MUX_PAD_CTRL(USDHC_PAD_CTRL),
182 	MX6_PAD_SD2_CMD__SD2_CMD    | MUX_PAD_CTRL(USDHC_PAD_CTRL),
183 	MX6_PAD_SD2_DAT0__SD2_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
184 	MX6_PAD_SD2_DAT1__SD2_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
185 	MX6_PAD_SD2_DAT2__SD2_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
186 	MX6_PAD_SD2_DAT3__SD2_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
187 	MX6_PAD_NANDF_CS1__GPIO6_IO14  | MUX_PAD_CTRL(NO_PAD_CTRL), /* CD */
188 #	define GPIO_SD_CD IMX_GPIO_NR(6, 14)
189 };
190 
191 /* eMMC */
192 iomux_v3_cfg_t const usdhc3_pads[] = {
193 	MX6_PAD_SD3_CLK__SD3_CLK    | MUX_PAD_CTRL(USDHC_PAD_CTRL),
194 	MX6_PAD_SD3_CMD__SD3_CMD    | MUX_PAD_CTRL(USDHC_PAD_CTRL),
195 	MX6_PAD_SD3_DAT0__SD3_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
196 	MX6_PAD_SD3_DAT1__SD3_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
197 	MX6_PAD_SD3_DAT2__SD3_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
198 	MX6_PAD_SD3_DAT3__SD3_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
199 	MX6_PAD_SD3_DAT4__SD3_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
200 	MX6_PAD_SD3_DAT5__SD3_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
201 	MX6_PAD_SD3_DAT6__SD3_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
202 	MX6_PAD_SD3_DAT7__SD3_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
203 	MX6_PAD_SD3_RST__GPIO7_IO08 | MUX_PAD_CTRL(WEAK_PULLUP),
204 };
205 
mx6_rgmii_rework(struct phy_device * phydev)206 int mx6_rgmii_rework(struct phy_device *phydev)
207 {
208 	/* control data pad skew - devaddr = 0x02, register = 0x04 */
209 	ksz9031_phy_extended_write(phydev, 0x02,
210 				   MII_KSZ9031_EXT_RGMII_CTRL_SIG_SKEW,
211 				   MII_KSZ9031_MOD_DATA_NO_POST_INC, 0x0000);
212 	/* rx data pad skew - devaddr = 0x02, register = 0x05 */
213 	ksz9031_phy_extended_write(phydev, 0x02,
214 				   MII_KSZ9031_EXT_RGMII_RX_DATA_SKEW,
215 				   MII_KSZ9031_MOD_DATA_NO_POST_INC, 0x0000);
216 	/* tx data pad skew - devaddr = 0x02, register = 0x05 */
217 	ksz9031_phy_extended_write(phydev, 0x02,
218 				   MII_KSZ9031_EXT_RGMII_TX_DATA_SKEW,
219 				   MII_KSZ9031_MOD_DATA_NO_POST_INC, 0x0000);
220 	/* gtx and rx clock pad skew - devaddr = 0x02, register = 0x08 */
221 	ksz9031_phy_extended_write(phydev, 0x02,
222 				   MII_KSZ9031_EXT_RGMII_CLOCK_SKEW,
223 				   MII_KSZ9031_MOD_DATA_NO_POST_INC, 0x03FF);
224 	return 0;
225 }
226 
227 iomux_v3_cfg_t const enet_pads[] = {
228 	MX6_PAD_ENET_MDIO__ENET_MDIO		| MUX_PAD_CTRL(ENET_PAD_CTRL),
229 	MX6_PAD_ENET_MDC__ENET_MDC		| MUX_PAD_CTRL(ENET_PAD_CTRL),
230 	MX6_PAD_RGMII_TXC__RGMII_TXC		| MUX_PAD_CTRL(ENET_PAD_CTRL),
231 	MX6_PAD_RGMII_TD0__RGMII_TD0		| MUX_PAD_CTRL(ENET_PAD_CTRL),
232 	MX6_PAD_RGMII_TD1__RGMII_TD1		| MUX_PAD_CTRL(ENET_PAD_CTRL),
233 	MX6_PAD_RGMII_TD2__RGMII_TD2		| MUX_PAD_CTRL(ENET_PAD_CTRL),
234 	MX6_PAD_RGMII_TD3__RGMII_TD3		| MUX_PAD_CTRL(ENET_PAD_CTRL),
235 	MX6_PAD_RGMII_TX_CTL__RGMII_TX_CTL	| MUX_PAD_CTRL(ENET_PAD_CTRL),
236 	MX6_PAD_ENET_REF_CLK__ENET_TX_CLK	| MUX_PAD_CTRL(ENET_PAD_CTRL),
237 	MX6_PAD_RGMII_RXC__RGMII_RXC		| MUX_PAD_CTRL(ENET_PAD_CTRL),
238 	MX6_PAD_RGMII_RD0__RGMII_RD0		| MUX_PAD_CTRL(ENET_PAD_CTRL),
239 	MX6_PAD_RGMII_RD1__RGMII_RD1		| MUX_PAD_CTRL(ENET_PAD_CTRL),
240 	MX6_PAD_RGMII_RD2__RGMII_RD2		| MUX_PAD_CTRL(ENET_PAD_CTRL),
241 	MX6_PAD_RGMII_RD3__RGMII_RD3		| MUX_PAD_CTRL(ENET_PAD_CTRL),
242 	MX6_PAD_RGMII_RX_CTL__RGMII_RX_CTL	| MUX_PAD_CTRL(ENET_PAD_CTRL),
243 	/* KSZ9031 PHY Reset */
244 	MX6_PAD_ENET_CRS_DV__GPIO1_IO25		| MUX_PAD_CTRL(NO_PAD_CTRL),
245 #	define GPIO_ENET_PHY_RESET IMX_GPIO_NR(1, 25)
246 };
247 
setup_iomux_enet(void)248 static void setup_iomux_enet(void)
249 {
250 	imx_iomux_v3_setup_multiple_pads(enet_pads, ARRAY_SIZE(enet_pads));
251 }
252 
reset_enet_phy(struct mii_dev * bus)253 static int reset_enet_phy(struct mii_dev *bus)
254 {
255 	/* Reset KSZ9031 PHY */
256 	gpio_direction_output(GPIO_ENET_PHY_RESET, 0);
257 	mdelay(10);
258 	gpio_set_value(GPIO_ENET_PHY_RESET, 1);
259 
260 	return 0;
261 }
262 
263 /* mux the Apalis GPIO pins, so they can be used from the U-Boot cmdline */
264 iomux_v3_cfg_t const gpio_pads[] = {
265 	/* Apalis GPIO1 - GPIO8 */
266 	MX6_PAD_NANDF_D4__GPIO2_IO04	| MUX_PAD_CTRL(WEAK_PULLUP),
267 	MX6_PAD_NANDF_D5__GPIO2_IO05	| MUX_PAD_CTRL(WEAK_PULLUP),
268 	MX6_PAD_NANDF_D6__GPIO2_IO06	| MUX_PAD_CTRL(WEAK_PULLUP),
269 	MX6_PAD_NANDF_D7__GPIO2_IO07	| MUX_PAD_CTRL(WEAK_PULLUP),
270 	MX6_PAD_NANDF_RB0__GPIO6_IO10	| MUX_PAD_CTRL(WEAK_PULLUP),
271 	MX6_PAD_NANDF_WP_B__GPIO6_IO09	| MUX_PAD_CTRL(WEAK_PULLUP),
272 	MX6_PAD_GPIO_2__GPIO1_IO02	| MUX_PAD_CTRL(WEAK_PULLDOWN),
273 	MX6_PAD_GPIO_6__GPIO1_IO06	| MUX_PAD_CTRL(WEAK_PULLUP),
274 	MX6_PAD_GPIO_4__GPIO1_IO04	| MUX_PAD_CTRL(WEAK_PULLUP),
275 };
276 
setup_iomux_gpio(void)277 static void setup_iomux_gpio(void)
278 {
279 	imx_iomux_v3_setup_multiple_pads(gpio_pads, ARRAY_SIZE(gpio_pads));
280 }
281 
282 iomux_v3_cfg_t const usb_pads[] = {
283 	/* USBH_EN */
284 	MX6_PAD_GPIO_0__GPIO1_IO00 | MUX_PAD_CTRL(NO_PAD_CTRL),
285 #	define GPIO_USBH_EN IMX_GPIO_NR(1, 0)
286 	/* USB_VBUS_DET */
287 	MX6_PAD_EIM_D28__GPIO3_IO28 | MUX_PAD_CTRL(NO_PAD_CTRL),
288 #	define GPIO_USB_VBUS_DET IMX_GPIO_NR(3, 28)
289 	/* USBO1_ID */
290 	MX6_PAD_ENET_RX_ER__USB_OTG_ID	| MUX_PAD_CTRL(WEAK_PULLUP),
291 	/* USBO1_EN */
292 	MX6_PAD_EIM_D22__GPIO3_IO22 | MUX_PAD_CTRL(NO_PAD_CTRL),
293 #	define GPIO_USBO_EN IMX_GPIO_NR(3, 22)
294 };
295 
296 /*
297  * UARTs are used in DTE mode, switch the mode on all UARTs before
298  * any pinmuxing connects a (DCE) output to a transceiver output.
299  */
300 #define UFCR		0x90	/* FIFO Control Register */
301 #define UFCR_DCEDTE	(1<<6)	/* DCE=0 */
302 
setup_dtemode_uart(void)303 static void setup_dtemode_uart(void)
304 {
305 	setbits_le32((u32 *)(UART1_BASE + UFCR), UFCR_DCEDTE);
306 	setbits_le32((u32 *)(UART2_BASE + UFCR), UFCR_DCEDTE);
307 	setbits_le32((u32 *)(UART4_BASE + UFCR), UFCR_DCEDTE);
308 	setbits_le32((u32 *)(UART5_BASE + UFCR), UFCR_DCEDTE);
309 }
setup_dcemode_uart(void)310 static void setup_dcemode_uart(void)
311 {
312 	clrbits_le32((u32 *)(UART1_BASE + UFCR), UFCR_DCEDTE);
313 	clrbits_le32((u32 *)(UART2_BASE + UFCR), UFCR_DCEDTE);
314 	clrbits_le32((u32 *)(UART4_BASE + UFCR), UFCR_DCEDTE);
315 	clrbits_le32((u32 *)(UART5_BASE + UFCR), UFCR_DCEDTE);
316 }
317 
setup_iomux_dte_uart(void)318 static void setup_iomux_dte_uart(void)
319 {
320 	setup_dtemode_uart();
321 	imx_iomux_v3_setup_multiple_pads(uart1_pads_dte,
322 					 ARRAY_SIZE(uart1_pads_dte));
323 }
324 
setup_iomux_dce_uart(void)325 static void setup_iomux_dce_uart(void)
326 {
327 	setup_dcemode_uart();
328 	imx_iomux_v3_setup_multiple_pads(uart1_pads_dce,
329 					 ARRAY_SIZE(uart1_pads_dce));
330 }
331 
332 #ifdef CONFIG_USB_EHCI_MX6
board_ehci_hcd_init(int port)333 int board_ehci_hcd_init(int port)
334 {
335 	imx_iomux_v3_setup_multiple_pads(usb_pads, ARRAY_SIZE(usb_pads));
336 	return 0;
337 }
338 
board_ehci_power(int port,int on)339 int board_ehci_power(int port, int on)
340 {
341 	switch (port) {
342 	case 0:
343 		/* control OTG power */
344 		gpio_direction_output(GPIO_USBO_EN, on);
345 		mdelay(100);
346 		break;
347 	case 1:
348 		/* Control MXM USBH */
349 		gpio_direction_output(GPIO_USBH_EN, on);
350 		mdelay(2);
351 		/* Control onboard USB Hub VBUS */
352 		gpio_direction_output(GPIO_USB_VBUS_DET, on);
353 		mdelay(100);
354 		break;
355 	default:
356 		break;
357 	}
358 	return 0;
359 }
360 #endif
361 
362 #ifdef CONFIG_FSL_ESDHC
363 /* use the following sequence: eMMC, MMC, SD */
364 struct fsl_esdhc_cfg usdhc_cfg[CONFIG_SYS_FSL_USDHC_NUM] = {
365 	{USDHC3_BASE_ADDR},
366 	{USDHC1_BASE_ADDR},
367 	{USDHC2_BASE_ADDR},
368 };
369 
board_mmc_getcd(struct mmc * mmc)370 int board_mmc_getcd(struct mmc *mmc)
371 {
372 	struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
373 	int ret = true; /* default: assume inserted */
374 
375 	switch (cfg->esdhc_base) {
376 	case USDHC1_BASE_ADDR:
377 		gpio_direction_input(GPIO_MMC_CD);
378 		ret = !gpio_get_value(GPIO_MMC_CD);
379 		break;
380 	case USDHC2_BASE_ADDR:
381 		gpio_direction_input(GPIO_SD_CD);
382 		ret = !gpio_get_value(GPIO_SD_CD);
383 		break;
384 	}
385 
386 	return ret;
387 }
388 
board_mmc_init(bd_t * bis)389 int board_mmc_init(bd_t *bis)
390 {
391 #ifndef CONFIG_SPL_BUILD
392 	s32 status = 0;
393 	u32 index = 0;
394 
395 	usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
396 	usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);
397 	usdhc_cfg[2].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK);
398 
399 	usdhc_cfg[0].max_bus_width = 8;
400 	usdhc_cfg[1].max_bus_width = 8;
401 	usdhc_cfg[2].max_bus_width = 4;
402 
403 	for (index = 0; index < CONFIG_SYS_FSL_USDHC_NUM; ++index) {
404 		switch (index) {
405 		case 0:
406 			imx_iomux_v3_setup_multiple_pads(
407 				usdhc3_pads, ARRAY_SIZE(usdhc3_pads));
408 			break;
409 		case 1:
410 			imx_iomux_v3_setup_multiple_pads(
411 				usdhc1_pads, ARRAY_SIZE(usdhc1_pads));
412 			break;
413 		case 2:
414 			imx_iomux_v3_setup_multiple_pads(
415 				usdhc2_pads, ARRAY_SIZE(usdhc2_pads));
416 			break;
417 		default:
418 			printf("Warning: you configured more USDHC controllers (%d) then supported by the board (%d)\n",
419 			       index + 1, CONFIG_SYS_FSL_USDHC_NUM);
420 			return status;
421 		}
422 
423 		status |= fsl_esdhc_initialize(bis, &usdhc_cfg[index]);
424 	}
425 
426 	return status;
427 #else
428 	struct src *psrc = (struct src *)SRC_BASE_ADDR;
429 	unsigned reg = readl(&psrc->sbmr1) >> 11;
430 	/*
431 	 * Upon reading BOOT_CFG register the following map is done:
432 	 * Bit 11 and 12 of BOOT_CFG register can determine the current
433 	 * mmc port
434 	 * 0x1                  SD1
435 	 * 0x2                  SD2
436 	 * 0x3                  SD4
437 	 */
438 
439 	switch (reg & 0x3) {
440 	case 0x0:
441 		imx_iomux_v3_setup_multiple_pads(
442 			usdhc1_pads, ARRAY_SIZE(usdhc1_pads));
443 		usdhc_cfg[0].esdhc_base = USDHC1_BASE_ADDR;
444 		usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);
445 		gd->arch.sdhc_clk = usdhc_cfg[0].sdhc_clk;
446 		break;
447 	case 0x1:
448 		imx_iomux_v3_setup_multiple_pads(
449 			usdhc2_pads, ARRAY_SIZE(usdhc2_pads));
450 		usdhc_cfg[0].esdhc_base = USDHC2_BASE_ADDR;
451 		usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK);
452 		gd->arch.sdhc_clk = usdhc_cfg[0].sdhc_clk;
453 		break;
454 	case 0x2:
455 		imx_iomux_v3_setup_multiple_pads(
456 			usdhc3_pads, ARRAY_SIZE(usdhc3_pads));
457 		usdhc_cfg[0].esdhc_base = USDHC3_BASE_ADDR;
458 		usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
459 		gd->arch.sdhc_clk = usdhc_cfg[0].sdhc_clk;
460 		break;
461 	default:
462 		puts("MMC boot device not available");
463 	}
464 
465 	return fsl_esdhc_initialize(bis, &usdhc_cfg[0]);
466 #endif
467 }
468 #endif
469 
board_phy_config(struct phy_device * phydev)470 int board_phy_config(struct phy_device *phydev)
471 {
472 	mx6_rgmii_rework(phydev);
473 	if (phydev->drv->config)
474 		phydev->drv->config(phydev);
475 
476 	return 0;
477 }
478 
board_eth_init(bd_t * bis)479 int board_eth_init(bd_t *bis)
480 {
481 	uint32_t base = IMX_FEC_BASE;
482 	struct mii_dev *bus = NULL;
483 	struct phy_device *phydev = NULL;
484 	int ret;
485 
486 	setup_iomux_enet();
487 
488 #ifdef CONFIG_FEC_MXC
489 	bus = fec_get_miibus(base, -1);
490 	if (!bus)
491 		return 0;
492 	bus->reset = reset_enet_phy;
493 	/* scan PHY 4,5,6,7 */
494 	phydev = phy_find_by_mask(bus, (0xf << 4), PHY_INTERFACE_MODE_RGMII);
495 	if (!phydev) {
496 		free(bus);
497 		puts("no PHY found\n");
498 		return 0;
499 	}
500 	printf("using PHY at %d\n", phydev->addr);
501 	ret = fec_probe(bis, -1, base, bus, phydev);
502 	if (ret) {
503 		printf("FEC MXC: %s:failed\n", __func__);
504 		free(phydev);
505 		free(bus);
506 	}
507 #endif
508 	return 0;
509 }
510 
511 static iomux_v3_cfg_t const pwr_intb_pads[] = {
512 	/*
513 	 * the bootrom sets the iomux to vselect, potentially connecting
514 	 * two outputs. Set this back to GPIO
515 	 */
516 	MX6_PAD_GPIO_18__GPIO7_IO13 | MUX_PAD_CTRL(NO_PAD_CTRL)
517 };
518 
519 #if defined(CONFIG_VIDEO_IPUV3)
520 
521 static iomux_v3_cfg_t const backlight_pads[] = {
522 	/* Backlight on RGB connector: J15 */
523 	MX6_PAD_EIM_DA13__GPIO3_IO13 | MUX_PAD_CTRL(NO_PAD_CTRL),
524 #define RGB_BACKLIGHT_GP IMX_GPIO_NR(3, 13)
525 	/* additional CPU pin on BKL_PWM, keep in tristate */
526 	MX6_PAD_EIM_DA14__GPIO3_IO14 | MUX_PAD_CTRL(TRISTATE),
527 	/* Backlight PWM, used as GPIO in U-Boot */
528 	MX6_PAD_SD4_DAT2__GPIO2_IO10 | MUX_PAD_CTRL(NO_PAD_CTRL),
529 #define RGB_BACKLIGHTPWM_GP IMX_GPIO_NR(2, 10)
530 	/* buffer output enable 0: buffer enabled */
531 	MX6_PAD_EIM_A25__GPIO5_IO02 | MUX_PAD_CTRL(WEAK_PULLUP),
532 #define RGB_BACKLIGHTPWM_OE IMX_GPIO_NR(5, 2)
533 	/* PSAVE# integrated VDAC */
534 	MX6_PAD_EIM_BCLK__GPIO6_IO31 | MUX_PAD_CTRL(NO_PAD_CTRL),
535 #define VGA_PSAVE_NOT_GP IMX_GPIO_NR(6, 31)
536 };
537 
538 static iomux_v3_cfg_t const rgb_pads[] = {
539 	MX6_PAD_EIM_A16__IPU1_DI1_DISP_CLK | MUX_PAD_CTRL(OUTPUT_RGB),
540 	MX6_PAD_EIM_DA10__IPU1_DI1_PIN15 | MUX_PAD_CTRL(OUTPUT_RGB),
541 	MX6_PAD_EIM_DA11__IPU1_DI1_PIN02 | MUX_PAD_CTRL(OUTPUT_RGB),
542 	MX6_PAD_EIM_DA12__IPU1_DI1_PIN03 | MUX_PAD_CTRL(OUTPUT_RGB),
543 	MX6_PAD_EIM_DA9__IPU1_DISP1_DATA00 | MUX_PAD_CTRL(OUTPUT_RGB),
544 	MX6_PAD_EIM_DA8__IPU1_DISP1_DATA01 | MUX_PAD_CTRL(OUTPUT_RGB),
545 	MX6_PAD_EIM_DA7__IPU1_DISP1_DATA02 | MUX_PAD_CTRL(OUTPUT_RGB),
546 	MX6_PAD_EIM_DA6__IPU1_DISP1_DATA03 | MUX_PAD_CTRL(OUTPUT_RGB),
547 	MX6_PAD_EIM_DA5__IPU1_DISP1_DATA04 | MUX_PAD_CTRL(OUTPUT_RGB),
548 	MX6_PAD_EIM_DA4__IPU1_DISP1_DATA05 | MUX_PAD_CTRL(OUTPUT_RGB),
549 	MX6_PAD_EIM_DA3__IPU1_DISP1_DATA06 | MUX_PAD_CTRL(OUTPUT_RGB),
550 	MX6_PAD_EIM_DA2__IPU1_DISP1_DATA07 | MUX_PAD_CTRL(OUTPUT_RGB),
551 	MX6_PAD_EIM_DA1__IPU1_DISP1_DATA08 | MUX_PAD_CTRL(OUTPUT_RGB),
552 	MX6_PAD_EIM_DA0__IPU1_DISP1_DATA09 | MUX_PAD_CTRL(OUTPUT_RGB),
553 	MX6_PAD_EIM_EB1__IPU1_DISP1_DATA10 | MUX_PAD_CTRL(OUTPUT_RGB),
554 	MX6_PAD_EIM_EB0__IPU1_DISP1_DATA11 | MUX_PAD_CTRL(OUTPUT_RGB),
555 	MX6_PAD_EIM_A17__IPU1_DISP1_DATA12 | MUX_PAD_CTRL(OUTPUT_RGB),
556 	MX6_PAD_EIM_A18__IPU1_DISP1_DATA13 | MUX_PAD_CTRL(OUTPUT_RGB),
557 	MX6_PAD_EIM_A19__IPU1_DISP1_DATA14 | MUX_PAD_CTRL(OUTPUT_RGB),
558 	MX6_PAD_EIM_A20__IPU1_DISP1_DATA15 | MUX_PAD_CTRL(OUTPUT_RGB),
559 	MX6_PAD_EIM_A21__IPU1_DISP1_DATA16 | MUX_PAD_CTRL(OUTPUT_RGB),
560 	MX6_PAD_EIM_A22__IPU1_DISP1_DATA17 | MUX_PAD_CTRL(OUTPUT_RGB),
561 	MX6_PAD_EIM_A23__IPU1_DISP1_DATA18 | MUX_PAD_CTRL(OUTPUT_RGB),
562 	MX6_PAD_EIM_A24__IPU1_DISP1_DATA19 | MUX_PAD_CTRL(OUTPUT_RGB),
563 	MX6_PAD_EIM_D26__IPU1_DISP1_DATA22 | MUX_PAD_CTRL(OUTPUT_RGB),
564 	MX6_PAD_EIM_D27__IPU1_DISP1_DATA23 | MUX_PAD_CTRL(OUTPUT_RGB),
565 	MX6_PAD_EIM_D30__IPU1_DISP1_DATA21 | MUX_PAD_CTRL(OUTPUT_RGB),
566 	MX6_PAD_EIM_D31__IPU1_DISP1_DATA20 | MUX_PAD_CTRL(OUTPUT_RGB),
567 };
568 
do_enable_hdmi(struct display_info_t const * dev)569 static void do_enable_hdmi(struct display_info_t const *dev)
570 {
571 	imx_enable_hdmi_phy();
572 }
573 
detect_i2c(struct display_info_t const * dev)574 static int detect_i2c(struct display_info_t const *dev)
575 {
576 	return (0 == i2c_set_bus_num(dev->bus)) &&
577 	       (0 == i2c_probe(dev->addr));
578 }
579 
enable_lvds(struct display_info_t const * dev)580 static void enable_lvds(struct display_info_t const *dev)
581 {
582 	struct iomuxc *iomux = (struct iomuxc *)
583 				IOMUXC_BASE_ADDR;
584 	u32 reg = readl(&iomux->gpr[2]);
585 	reg |= IOMUXC_GPR2_DATA_WIDTH_CH0_24BIT;
586 	writel(reg, &iomux->gpr[2]);
587 	gpio_direction_output(RGB_BACKLIGHT_GP, 1);
588 	gpio_direction_output(RGB_BACKLIGHTPWM_GP, 0);
589 	gpio_direction_output(RGB_BACKLIGHTPWM_OE, 0);
590 }
591 
enable_rgb(struct display_info_t const * dev)592 static void enable_rgb(struct display_info_t const *dev)
593 {
594 	imx_iomux_v3_setup_multiple_pads(
595 		rgb_pads,
596 		ARRAY_SIZE(rgb_pads));
597 	gpio_direction_output(RGB_BACKLIGHT_GP, 1);
598 	gpio_direction_output(RGB_BACKLIGHTPWM_GP, 0);
599 	gpio_direction_output(RGB_BACKLIGHTPWM_OE, 0);
600 }
601 
detect_default(struct display_info_t const * dev)602 static int detect_default(struct display_info_t const *dev)
603 {
604 	(void) dev;
605 	return 1;
606 }
607 
608 struct display_info_t const displays[] = {{
609 	.bus	= -1,
610 	.addr	= 0,
611 	.pixfmt	= IPU_PIX_FMT_RGB24,
612 	.detect	= detect_hdmi,
613 	.enable	= do_enable_hdmi,
614 	.mode	= {
615 		.name           = "HDMI",
616 		.refresh        = 60,
617 		.xres           = 1024,
618 		.yres           = 768,
619 		.pixclock       = 15385,
620 		.left_margin    = 220,
621 		.right_margin   = 40,
622 		.upper_margin   = 21,
623 		.lower_margin   = 7,
624 		.hsync_len      = 60,
625 		.vsync_len      = 10,
626 		.sync           = FB_SYNC_EXT,
627 		.vmode          = FB_VMODE_NONINTERLACED
628 } }, {
629 	.bus	= -1,
630 	.addr	= 0,
631 	.di	= 1,
632 	.pixfmt	= IPU_PIX_FMT_RGB24,
633 	.detect	= detect_default,
634 	.enable	= enable_rgb,
635 	.mode	= {
636 		.name           = "vga-rgb",
637 		.refresh        = 60,
638 		.xres           = 640,
639 		.yres           = 480,
640 		.pixclock       = 33000,
641 		.left_margin    = 48,
642 		.right_margin   = 16,
643 		.upper_margin   = 31,
644 		.lower_margin   = 11,
645 		.hsync_len      = 96,
646 		.vsync_len      = 2,
647 		.sync           = 0,
648 		.vmode          = FB_VMODE_NONINTERLACED
649 } }, {
650 	.bus	= -1,
651 	.addr	= 0,
652 	.di	= 1,
653 	.pixfmt	= IPU_PIX_FMT_RGB24,
654 	.enable	= enable_rgb,
655 	.mode	= {
656 		.name           = "wvga-rgb",
657 		.refresh        = 60,
658 		.xres           = 800,
659 		.yres           = 480,
660 		.pixclock       = 25000,
661 		.left_margin    = 40,
662 		.right_margin   = 88,
663 		.upper_margin   = 33,
664 		.lower_margin   = 10,
665 		.hsync_len      = 128,
666 		.vsync_len      = 2,
667 		.sync           = 0,
668 		.vmode          = FB_VMODE_NONINTERLACED
669 } }, {
670 	.bus	= -1,
671 	.addr	= 0,
672 	.pixfmt	= IPU_PIX_FMT_LVDS666,
673 	.detect	= detect_i2c,
674 	.enable	= enable_lvds,
675 	.mode	= {
676 		.name           = "wsvga-lvds",
677 		.refresh        = 60,
678 		.xres           = 1024,
679 		.yres           = 600,
680 		.pixclock       = 15385,
681 		.left_margin    = 220,
682 		.right_margin   = 40,
683 		.upper_margin   = 21,
684 		.lower_margin   = 7,
685 		.hsync_len      = 60,
686 		.vsync_len      = 10,
687 		.sync           = FB_SYNC_EXT,
688 		.vmode          = FB_VMODE_NONINTERLACED
689 } } };
690 size_t display_count = ARRAY_SIZE(displays);
691 
setup_display(void)692 static void setup_display(void)
693 {
694 	struct mxc_ccm_reg *mxc_ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
695 	struct iomuxc *iomux = (struct iomuxc *)IOMUXC_BASE_ADDR;
696 	int reg;
697 
698 	enable_ipu_clock();
699 	imx_setup_hdmi();
700 	/* Turn on LDB0,IPU,IPU DI0 clocks */
701 	reg = __raw_readl(&mxc_ccm->CCGR3);
702 	reg |= MXC_CCM_CCGR3_LDB_DI0_MASK;
703 	writel(reg, &mxc_ccm->CCGR3);
704 
705 	/* set LDB0, LDB1 clk select to 011/011 */
706 	reg = readl(&mxc_ccm->cs2cdr);
707 	reg &= ~(MXC_CCM_CS2CDR_LDB_DI0_CLK_SEL_MASK
708 		 |MXC_CCM_CS2CDR_LDB_DI1_CLK_SEL_MASK);
709 	reg |= (3<<MXC_CCM_CS2CDR_LDB_DI0_CLK_SEL_OFFSET)
710 	      |(3<<MXC_CCM_CS2CDR_LDB_DI1_CLK_SEL_OFFSET);
711 	writel(reg, &mxc_ccm->cs2cdr);
712 
713 	reg = readl(&mxc_ccm->cscmr2);
714 	reg |= MXC_CCM_CSCMR2_LDB_DI0_IPU_DIV;
715 	writel(reg, &mxc_ccm->cscmr2);
716 
717 	reg = readl(&mxc_ccm->chsccdr);
718 	reg |= (CHSCCDR_CLK_SEL_LDB_DI0
719 		<<MXC_CCM_CHSCCDR_IPU1_DI0_CLK_SEL_OFFSET);
720 	writel(reg, &mxc_ccm->chsccdr);
721 
722 	reg = IOMUXC_GPR2_BGREF_RRMODE_EXTERNAL_RES
723 	     |IOMUXC_GPR2_DI1_VS_POLARITY_ACTIVE_HIGH
724 	     |IOMUXC_GPR2_DI0_VS_POLARITY_ACTIVE_LOW
725 	     |IOMUXC_GPR2_BIT_MAPPING_CH1_SPWG
726 	     |IOMUXC_GPR2_DATA_WIDTH_CH1_18BIT
727 	     |IOMUXC_GPR2_BIT_MAPPING_CH0_SPWG
728 	     |IOMUXC_GPR2_DATA_WIDTH_CH0_18BIT
729 	     |IOMUXC_GPR2_LVDS_CH1_MODE_DISABLED
730 	     |IOMUXC_GPR2_LVDS_CH0_MODE_ENABLED_DI0;
731 	writel(reg, &iomux->gpr[2]);
732 
733 	reg = readl(&iomux->gpr[3]);
734 	reg = (reg & ~(IOMUXC_GPR3_LVDS0_MUX_CTL_MASK
735 			|IOMUXC_GPR3_HDMI_MUX_CTL_MASK))
736 	    | (IOMUXC_GPR3_MUX_SRC_IPU1_DI0
737 	       <<IOMUXC_GPR3_LVDS0_MUX_CTL_OFFSET);
738 	writel(reg, &iomux->gpr[3]);
739 
740 	/* backlight unconditionally on for now */
741 	imx_iomux_v3_setup_multiple_pads(backlight_pads,
742 					 ARRAY_SIZE(backlight_pads));
743 	/* use 0 for EDT 7", use 1 for LG fullHD panel */
744 	gpio_direction_output(RGB_BACKLIGHTPWM_GP, 0);
745 	gpio_direction_output(RGB_BACKLIGHTPWM_OE, 0);
746 	gpio_direction_output(RGB_BACKLIGHT_GP, 1);
747 }
748 
749 /*
750  * Backlight off before OS handover
751  */
board_preboot_os(void)752 void board_preboot_os(void)
753 {
754 	gpio_direction_output(RGB_BACKLIGHTPWM_GP, 1);
755 	gpio_direction_output(RGB_BACKLIGHT_GP, 0);
756 }
757 #endif /* defined(CONFIG_VIDEO_IPUV3) */
758 
board_early_init_f(void)759 int board_early_init_f(void)
760 {
761 	imx_iomux_v3_setup_multiple_pads(pwr_intb_pads,
762 					 ARRAY_SIZE(pwr_intb_pads));
763 #ifndef CONFIG_TDX_APALIS_IMX6_V1_0
764 	setup_iomux_dte_uart();
765 #else
766 	setup_iomux_dce_uart();
767 #endif
768 	return 0;
769 }
770 
771 /*
772  * Do not overwrite the console
773  * Use always serial for U-Boot console
774  */
overwrite_console(void)775 int overwrite_console(void)
776 {
777 	return 1;
778 }
779 
board_init(void)780 int board_init(void)
781 {
782 	/* address of boot parameters */
783 	gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
784 
785 	setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1);
786 	setup_i2c(1, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info_loc);
787 	setup_i2c(2, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info3);
788 
789 #if defined(CONFIG_VIDEO_IPUV3)
790 	setup_display();
791 #endif
792 
793 #ifdef CONFIG_TDX_CMD_IMX_MFGR
794 	(void) pmic_init();
795 #endif
796 
797 #ifdef CONFIG_SATA
798 	setup_sata();
799 #endif
800 
801 	setup_iomux_gpio();
802 
803 	return 0;
804 }
805 
806 #ifdef CONFIG_BOARD_LATE_INIT
board_late_init(void)807 int board_late_init(void)
808 {
809 #if defined(CONFIG_REVISION_TAG) && \
810     defined(CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG)
811 	char env_str[256];
812 	u32 rev;
813 
814 	rev = get_board_rev();
815 	snprintf(env_str, ARRAY_SIZE(env_str), "%.4x", rev);
816 	env_set("board_rev", env_str);
817 
818 #ifndef CONFIG_TDX_APALIS_IMX6_V1_0
819 	if ((rev & 0xfff0) == 0x0100) {
820 		char *fdt_env;
821 
822 		/* reconfigure the UART to DCE mode dynamically if on V1.0 HW */
823 		setup_iomux_dce_uart();
824 
825 		/* if using the default device tree, use version for V1.0 HW */
826 		fdt_env = env_get("fdt_file");
827 		if ((fdt_env != NULL) && (strcmp(FDT_FILE, fdt_env) == 0)) {
828 			env_set("fdt_file", FDT_FILE_V1_0);
829 			printf("patching fdt_file to " FDT_FILE_V1_0 "\n");
830 #ifndef CONFIG_ENV_IS_NOWHERE
831 			env_save();
832 #endif
833 		}
834 	}
835 #endif /* CONFIG_TDX_APALIS_IMX6_V1_0 */
836 #endif /* CONFIG_REVISION_TAG */
837 
838 	return 0;
839 }
840 #endif /* CONFIG_BOARD_LATE_INIT */
841 
842 #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_SYSTEM_SETUP)
ft_system_setup(void * blob,bd_t * bd)843 int ft_system_setup(void *blob, bd_t *bd)
844 {
845 	return 0;
846 }
847 #endif
848 
checkboard(void)849 int checkboard(void)
850 {
851 	char it[] = " IT";
852 	int minc, maxc;
853 
854 	switch (get_cpu_temp_grade(&minc, &maxc)) {
855 	case TEMP_AUTOMOTIVE:
856 	case TEMP_INDUSTRIAL:
857 		break;
858 	case TEMP_EXTCOMMERCIAL:
859 	default:
860 		it[0] = 0;
861 	};
862 	printf("Model: Toradex Apalis iMX6 %s %s%s\n",
863 	       is_cpu_type(MXC_CPU_MX6D) ? "Dual" : "Quad",
864 	       (gd->ram_size == 0x80000000) ? "2GB" :
865 	       (gd->ram_size == 0x40000000) ? "1GB" : "512MB", it);
866 	return 0;
867 }
868 
869 #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
ft_board_setup(void * blob,bd_t * bd)870 int ft_board_setup(void *blob, bd_t *bd)
871 {
872 	return ft_common_board_setup(blob, bd);
873 }
874 #endif
875 
876 #ifdef CONFIG_CMD_BMODE
877 static const struct boot_mode board_boot_modes[] = {
878 	/* 4-bit bus width */
879 	{"mmc",	MAKE_CFGVAL(0x40, 0x20, 0x00, 0x00)},
880 	{"sd",	MAKE_CFGVAL(0x40, 0x28, 0x00, 0x00)},
881 	{NULL,	0},
882 };
883 #endif
884 
misc_init_r(void)885 int misc_init_r(void)
886 {
887 #ifdef CONFIG_CMD_BMODE
888 	add_board_boot_modes(board_boot_modes);
889 #endif
890 	return 0;
891 }
892 
893 #ifdef CONFIG_LDO_BYPASS_CHECK
894 /* TODO, use external pmic, for now always ldo_enable */
ldo_mode_set(int ldo_bypass)895 void ldo_mode_set(int ldo_bypass)
896 {
897 	return;
898 }
899 #endif
900 
901 #ifdef CONFIG_SPL_BUILD
902 #include <spl.h>
903 #include <linux/libfdt.h>
904 #include "asm/arch/mx6q-ddr.h"
905 #include "asm/arch/iomux.h"
906 #include "asm/arch/crm_regs.h"
907 
908 static int mx6_com_dcd_table[] = {
909 /* ddr-setup.cfg */
910 MX6_IOM_DRAM_SDQS0, 0x00000030,
911 MX6_IOM_DRAM_SDQS1, 0x00000030,
912 MX6_IOM_DRAM_SDQS2, 0x00000030,
913 MX6_IOM_DRAM_SDQS3, 0x00000030,
914 MX6_IOM_DRAM_SDQS4, 0x00000030,
915 MX6_IOM_DRAM_SDQS5, 0x00000030,
916 MX6_IOM_DRAM_SDQS6, 0x00000030,
917 MX6_IOM_DRAM_SDQS7, 0x00000030,
918 
919 MX6_IOM_GRP_B0DS, 0x00000030,
920 MX6_IOM_GRP_B1DS, 0x00000030,
921 MX6_IOM_GRP_B2DS, 0x00000030,
922 MX6_IOM_GRP_B3DS, 0x00000030,
923 MX6_IOM_GRP_B4DS, 0x00000030,
924 MX6_IOM_GRP_B5DS, 0x00000030,
925 MX6_IOM_GRP_B6DS, 0x00000030,
926 MX6_IOM_GRP_B7DS, 0x00000030,
927 MX6_IOM_GRP_ADDDS, 0x00000030,
928 /* 40 Ohm drive strength for cs0/1,sdba2,cke0/1,sdwe */
929 MX6_IOM_GRP_CTLDS, 0x00000030,
930 
931 MX6_IOM_DRAM_DQM0, 0x00020030,
932 MX6_IOM_DRAM_DQM1, 0x00020030,
933 MX6_IOM_DRAM_DQM2, 0x00020030,
934 MX6_IOM_DRAM_DQM3, 0x00020030,
935 MX6_IOM_DRAM_DQM4, 0x00020030,
936 MX6_IOM_DRAM_DQM5, 0x00020030,
937 MX6_IOM_DRAM_DQM6, 0x00020030,
938 MX6_IOM_DRAM_DQM7, 0x00020030,
939 
940 MX6_IOM_DRAM_CAS, 0x00020030,
941 MX6_IOM_DRAM_RAS, 0x00020030,
942 MX6_IOM_DRAM_SDCLK_0, 0x00020030,
943 MX6_IOM_DRAM_SDCLK_1, 0x00020030,
944 
945 MX6_IOM_DRAM_RESET, 0x00020030,
946 MX6_IOM_DRAM_SDCKE0, 0x00003000,
947 MX6_IOM_DRAM_SDCKE1, 0x00003000,
948 
949 MX6_IOM_DRAM_SDODT0, 0x00003030,
950 MX6_IOM_DRAM_SDODT1, 0x00003030,
951 
952 /* (differential input) */
953 MX6_IOM_DDRMODE_CTL, 0x00020000,
954 /* (differential input) */
955 MX6_IOM_GRP_DDRMODE, 0x00020000,
956 /* disable ddr pullups */
957 MX6_IOM_GRP_DDRPKE, 0x00000000,
958 MX6_IOM_DRAM_SDBA2, 0x00000000,
959 /* 40 Ohm drive strength for cs0/1,sdba2,cke0/1,sdwe */
960 MX6_IOM_GRP_DDR_TYPE, 0x000C0000,
961 
962 /* Read data DQ Byte0-3 delay */
963 MX6_MMDC_P0_MPRDDQBY0DL, 0x33333333,
964 MX6_MMDC_P0_MPRDDQBY1DL, 0x33333333,
965 MX6_MMDC_P0_MPRDDQBY2DL, 0x33333333,
966 MX6_MMDC_P0_MPRDDQBY3DL, 0x33333333,
967 MX6_MMDC_P1_MPRDDQBY0DL, 0x33333333,
968 MX6_MMDC_P1_MPRDDQBY1DL, 0x33333333,
969 MX6_MMDC_P1_MPRDDQBY2DL, 0x33333333,
970 MX6_MMDC_P1_MPRDDQBY3DL, 0x33333333,
971 
972 /*
973  * MDMISC	mirroring	interleaved (row/bank/col)
974  */
975 MX6_MMDC_P0_MDMISC, 0x00081740,
976 
977 /*
978  * MDSCR	con_req
979  */
980 MX6_MMDC_P0_MDSCR, 0x00008000,
981 
982 /* 1066mhz_4x128mx16.cfg */
983 
984 MX6_MMDC_P0_MDPDC, 0x00020036,
985 MX6_MMDC_P0_MDCFG0, 0x555A7954,
986 MX6_MMDC_P0_MDCFG1, 0xDB328F64,
987 MX6_MMDC_P0_MDCFG2, 0x01FF00DB,
988 MX6_MMDC_P0_MDRWD, 0x000026D2,
989 MX6_MMDC_P0_MDOR, 0x005A1023,
990 MX6_MMDC_P0_MDOTC, 0x09555050,
991 MX6_MMDC_P0_MDPDC, 0x00025576,
992 MX6_MMDC_P0_MDASP, 0x00000027,
993 MX6_MMDC_P0_MDCTL, 0x831A0000,
994 MX6_MMDC_P0_MDSCR, 0x04088032,
995 MX6_MMDC_P0_MDSCR, 0x00008033,
996 MX6_MMDC_P0_MDSCR, 0x00428031,
997 MX6_MMDC_P0_MDSCR, 0x19308030,
998 MX6_MMDC_P0_MDSCR, 0x04008040,
999 MX6_MMDC_P0_MPZQHWCTRL, 0xA1390003,
1000 MX6_MMDC_P1_MPZQHWCTRL, 0xA1390003,
1001 MX6_MMDC_P0_MDREF, 0x00005800,
1002 MX6_MMDC_P0_MPODTCTRL, 0x00000000,
1003 MX6_MMDC_P1_MPODTCTRL, 0x00000000,
1004 
1005 MX6_MMDC_P0_MPDGCTRL0, 0x432A0338,
1006 MX6_MMDC_P0_MPDGCTRL1, 0x03260324,
1007 MX6_MMDC_P1_MPDGCTRL0, 0x43340344,
1008 MX6_MMDC_P1_MPDGCTRL1, 0x031E027C,
1009 
1010 MX6_MMDC_P0_MPRDDLCTL, 0x33272D2E,
1011 MX6_MMDC_P1_MPRDDLCTL, 0x2F312B37,
1012 
1013 MX6_MMDC_P0_MPWRDLCTL, 0x3A35433C,
1014 MX6_MMDC_P1_MPWRDLCTL, 0x4336453F,
1015 
1016 MX6_MMDC_P0_MPWLDECTRL0, 0x0009000E,
1017 MX6_MMDC_P0_MPWLDECTRL1, 0x0018000B,
1018 MX6_MMDC_P1_MPWLDECTRL0, 0x00060015,
1019 MX6_MMDC_P1_MPWLDECTRL1, 0x0006000E,
1020 
1021 MX6_MMDC_P0_MPMUR0, 0x00000800,
1022 MX6_MMDC_P1_MPMUR0, 0x00000800,
1023 MX6_MMDC_P0_MDSCR, 0x00000000,
1024 MX6_MMDC_P0_MAPSR, 0x00011006,
1025 };
1026 
1027 static int mx6_it_dcd_table[] = {
1028 /* ddr-setup.cfg */
1029 MX6_IOM_DRAM_SDQS0, 0x00000030,
1030 MX6_IOM_DRAM_SDQS1, 0x00000030,
1031 MX6_IOM_DRAM_SDQS2, 0x00000030,
1032 MX6_IOM_DRAM_SDQS3, 0x00000030,
1033 MX6_IOM_DRAM_SDQS4, 0x00000030,
1034 MX6_IOM_DRAM_SDQS5, 0x00000030,
1035 MX6_IOM_DRAM_SDQS6, 0x00000030,
1036 MX6_IOM_DRAM_SDQS7, 0x00000030,
1037 
1038 MX6_IOM_GRP_B0DS, 0x00000030,
1039 MX6_IOM_GRP_B1DS, 0x00000030,
1040 MX6_IOM_GRP_B2DS, 0x00000030,
1041 MX6_IOM_GRP_B3DS, 0x00000030,
1042 MX6_IOM_GRP_B4DS, 0x00000030,
1043 MX6_IOM_GRP_B5DS, 0x00000030,
1044 MX6_IOM_GRP_B6DS, 0x00000030,
1045 MX6_IOM_GRP_B7DS, 0x00000030,
1046 MX6_IOM_GRP_ADDDS, 0x00000030,
1047 /* 40 Ohm drive strength for cs0/1,sdba2,cke0/1,sdwe */
1048 MX6_IOM_GRP_CTLDS, 0x00000030,
1049 
1050 MX6_IOM_DRAM_DQM0, 0x00020030,
1051 MX6_IOM_DRAM_DQM1, 0x00020030,
1052 MX6_IOM_DRAM_DQM2, 0x00020030,
1053 MX6_IOM_DRAM_DQM3, 0x00020030,
1054 MX6_IOM_DRAM_DQM4, 0x00020030,
1055 MX6_IOM_DRAM_DQM5, 0x00020030,
1056 MX6_IOM_DRAM_DQM6, 0x00020030,
1057 MX6_IOM_DRAM_DQM7, 0x00020030,
1058 
1059 MX6_IOM_DRAM_CAS, 0x00020030,
1060 MX6_IOM_DRAM_RAS, 0x00020030,
1061 MX6_IOM_DRAM_SDCLK_0, 0x00020030,
1062 MX6_IOM_DRAM_SDCLK_1, 0x00020030,
1063 
1064 MX6_IOM_DRAM_RESET, 0x00020030,
1065 MX6_IOM_DRAM_SDCKE0, 0x00003000,
1066 MX6_IOM_DRAM_SDCKE1, 0x00003000,
1067 
1068 MX6_IOM_DRAM_SDODT0, 0x00003030,
1069 MX6_IOM_DRAM_SDODT1, 0x00003030,
1070 
1071 /* (differential input) */
1072 MX6_IOM_DDRMODE_CTL, 0x00020000,
1073 /* (differential input) */
1074 MX6_IOM_GRP_DDRMODE, 0x00020000,
1075 /* disable ddr pullups */
1076 MX6_IOM_GRP_DDRPKE, 0x00000000,
1077 MX6_IOM_DRAM_SDBA2, 0x00000000,
1078 /* 40 Ohm drive strength for cs0/1,sdba2,cke0/1,sdwe */
1079 MX6_IOM_GRP_DDR_TYPE, 0x000C0000,
1080 
1081 /* Read data DQ Byte0-3 delay */
1082 MX6_MMDC_P0_MPRDDQBY0DL, 0x33333333,
1083 MX6_MMDC_P0_MPRDDQBY1DL, 0x33333333,
1084 MX6_MMDC_P0_MPRDDQBY2DL, 0x33333333,
1085 MX6_MMDC_P0_MPRDDQBY3DL, 0x33333333,
1086 MX6_MMDC_P1_MPRDDQBY0DL, 0x33333333,
1087 MX6_MMDC_P1_MPRDDQBY1DL, 0x33333333,
1088 MX6_MMDC_P1_MPRDDQBY2DL, 0x33333333,
1089 MX6_MMDC_P1_MPRDDQBY3DL, 0x33333333,
1090 
1091 /*
1092  * MDMISC	mirroring	interleaved (row/bank/col)
1093  */
1094 MX6_MMDC_P0_MDMISC, 0x00081740,
1095 
1096 /*
1097  * MDSCR	con_req
1098  */
1099 MX6_MMDC_P0_MDSCR, 0x00008000,
1100 
1101 /* 1066mhz_4x256mx16.cfg */
1102 
1103 MX6_MMDC_P0_MDPDC, 0x00020036,
1104 MX6_MMDC_P0_MDCFG0, 0x898E78f5,
1105 MX6_MMDC_P0_MDCFG1, 0xff328f64,
1106 MX6_MMDC_P0_MDCFG2, 0x01FF00DB,
1107 MX6_MMDC_P0_MDRWD, 0x000026D2,
1108 MX6_MMDC_P0_MDOR, 0x008E1023,
1109 MX6_MMDC_P0_MDOTC, 0x09444040,
1110 MX6_MMDC_P0_MDPDC, 0x00025576,
1111 MX6_MMDC_P0_MDASP, 0x00000047,
1112 MX6_MMDC_P0_MDCTL, 0x841A0000,
1113 MX6_MMDC_P0_MDSCR, 0x02888032,
1114 MX6_MMDC_P0_MDSCR, 0x00008033,
1115 MX6_MMDC_P0_MDSCR, 0x00048031,
1116 MX6_MMDC_P0_MDSCR, 0x19408030,
1117 MX6_MMDC_P0_MDSCR, 0x04008040,
1118 MX6_MMDC_P0_MPZQHWCTRL, 0xA1390003,
1119 MX6_MMDC_P1_MPZQHWCTRL, 0xA1390003,
1120 MX6_MMDC_P0_MDREF, 0x00007800,
1121 MX6_MMDC_P0_MPODTCTRL, 0x00022227,
1122 MX6_MMDC_P1_MPODTCTRL, 0x00022227,
1123 
1124 MX6_MMDC_P0_MPDGCTRL0, 0x03300338,
1125 MX6_MMDC_P0_MPDGCTRL1, 0x03240324,
1126 MX6_MMDC_P1_MPDGCTRL0, 0x03440350,
1127 MX6_MMDC_P1_MPDGCTRL1, 0x032C0308,
1128 
1129 MX6_MMDC_P0_MPRDDLCTL, 0x40363C3E,
1130 MX6_MMDC_P1_MPRDDLCTL, 0x3C3E3C46,
1131 
1132 MX6_MMDC_P0_MPWRDLCTL, 0x403E463E,
1133 MX6_MMDC_P1_MPWRDLCTL, 0x4A384C46,
1134 
1135 MX6_MMDC_P0_MPWLDECTRL0, 0x0009000E,
1136 MX6_MMDC_P0_MPWLDECTRL1, 0x0018000B,
1137 MX6_MMDC_P1_MPWLDECTRL0, 0x00060015,
1138 MX6_MMDC_P1_MPWLDECTRL1, 0x0006000E,
1139 
1140 MX6_MMDC_P0_MPMUR0, 0x00000800,
1141 MX6_MMDC_P1_MPMUR0, 0x00000800,
1142 MX6_MMDC_P0_MDSCR, 0x00000000,
1143 MX6_MMDC_P0_MAPSR, 0x00011006,
1144 };
1145 
1146 
ccgr_init(void)1147 static void ccgr_init(void)
1148 {
1149 	struct mxc_ccm_reg *ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
1150 
1151 	writel(0x00C03F3F, &ccm->CCGR0);
1152 	writel(0x0030FC03, &ccm->CCGR1);
1153 	writel(0x0FFFFFF3, &ccm->CCGR2);
1154 	writel(0x3FF0300F, &ccm->CCGR3);
1155 	writel(0x00FFF300, &ccm->CCGR4);
1156 	writel(0x0F0000F3, &ccm->CCGR5);
1157 	writel(0x000003FF, &ccm->CCGR6);
1158 
1159 /*
1160  * Setup CCM_CCOSR register as follows:
1161  *
1162  * cko1_en  = 1	   --> CKO1 enabled
1163  * cko1_div = 111  --> divide by 8
1164  * cko1_sel = 1011 --> ahb_clk_root
1165  *
1166  * This sets CKO1 at ahb_clk_root/8 = 132/8 = 16.5 MHz
1167  */
1168 	writel(0x000000FB, &ccm->ccosr);
1169 }
1170 
ddr_init(int * table,int size)1171 static void ddr_init(int *table, int size)
1172 {
1173 	int i;
1174 
1175 	for (i = 0; i < size / 2 ; i++)
1176 		writel(table[2 * i + 1], table[2 * i]);
1177 }
1178 
spl_dram_init(void)1179 static void spl_dram_init(void)
1180 {
1181 	int minc, maxc;
1182 
1183 	switch (get_cpu_temp_grade(&minc, &maxc)) {
1184 	case TEMP_COMMERCIAL:
1185 	case TEMP_EXTCOMMERCIAL:
1186 		puts("Commercial temperature grade DDR3 timings.\n");
1187 		ddr_init(mx6_com_dcd_table, ARRAY_SIZE(mx6_com_dcd_table));
1188 		break;
1189 	case TEMP_INDUSTRIAL:
1190 	case TEMP_AUTOMOTIVE:
1191 	default:
1192 		puts("Industrial temperature grade DDR3 timings.\n");
1193 		ddr_init(mx6_it_dcd_table, ARRAY_SIZE(mx6_it_dcd_table));
1194 		break;
1195 	};
1196 	udelay(100);
1197 }
1198 
board_init_f(ulong dummy)1199 void board_init_f(ulong dummy)
1200 {
1201 	/* setup AIPS and disable watchdog */
1202 	arch_cpu_init();
1203 
1204 	ccgr_init();
1205 	gpr_init();
1206 
1207 	/* iomux and setup of i2c */
1208 	board_early_init_f();
1209 
1210 	/* setup GP timer */
1211 	timer_init();
1212 
1213 	/* UART clocks enabled and gd valid - init serial console */
1214 	preloader_console_init();
1215 
1216 #ifndef CONFIG_TDX_APALIS_IMX6_V1_0
1217 	/* Make sure we use dte mode */
1218 	setup_dtemode_uart();
1219 #endif
1220 
1221 	/* DDR initialization */
1222 	spl_dram_init();
1223 
1224 	/* Clear the BSS. */
1225 	memset(__bss_start, 0, __bss_end - __bss_start);
1226 
1227 	/* load/boot image from boot device */
1228 	board_init_r(NULL, 0);
1229 }
1230 
reset_cpu(ulong addr)1231 void reset_cpu(ulong addr)
1232 {
1233 }
1234 
1235 #endif
1236 
1237 static struct mxc_serial_platdata mxc_serial_plat = {
1238 	.reg = (struct mxc_uart *)UART1_BASE,
1239 	.use_dte = true,
1240 };
1241 
1242 U_BOOT_DEVICE(mxc_serial) = {
1243 	.name = "serial_mxc",
1244 	.platdata = &mxc_serial_plat,
1245 };
1246