1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Copyright (C) 2010-2011 Freescale Semiconductor, Inc.
4  * Based on mx6qsabrelite.c file
5  * Copyright (C) 2013, Adeneo Embedded <www.adeneo-embedded.com>
6  * Leo Sartre, <lsartre@adeneo-embedded.com>
7  */
8 
9 #include <common.h>
10 #include <asm/io.h>
11 #include <asm/arch/clock.h>
12 #include <asm/arch/imx-regs.h>
13 #include <asm/arch/iomux.h>
14 #include <asm/arch/mx6-pins.h>
15 #include <asm/gpio.h>
16 #include <asm/mach-imx/iomux-v3.h>
17 #include <asm/mach-imx/sata.h>
18 #include <asm/mach-imx/boot_mode.h>
19 #include <asm/mach-imx/mxc_i2c.h>
20 #include <asm/arch/sys_proto.h>
21 #include <asm/arch/mxc_hdmi.h>
22 #include <asm/arch/crm_regs.h>
23 #include <mmc.h>
24 #include <fsl_esdhc.h>
25 #include <i2c.h>
26 #include <input.h>
27 #include <power/pmic.h>
28 #include <power/pfuze100_pmic.h>
29 #include <linux/fb.h>
30 #include <ipu_pixfmt.h>
31 #include <malloc.h>
32 #include <miiphy.h>
33 #include <netdev.h>
34 #include <micrel.h>
35 #include <spi_flash.h>
36 #include <spi.h>
37 
38 DECLARE_GLOBAL_DATA_PTR;
39 
40 #define UART_PAD_CTRL  (PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED |\
41 	PAD_CTL_DSE_40ohm   | PAD_CTL_SRE_FAST  | PAD_CTL_HYS)
42 
43 #define USDHC_PAD_CTRL (PAD_CTL_PUS_47K_UP  | PAD_CTL_SPEED_LOW |\
44 	PAD_CTL_DSE_80ohm   | PAD_CTL_SRE_FAST  | PAD_CTL_HYS)
45 
46 #define I2C_PAD_CTRL	(PAD_CTL_PKE | PAD_CTL_PUE |		\
47 	PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED |		\
48 	PAD_CTL_DSE_40ohm | PAD_CTL_HYS |			\
49 	PAD_CTL_ODE | PAD_CTL_SRE_FAST)
50 
51 #define SPI_PAD_CTRL (PAD_CTL_HYS |				\
52 	PAD_CTL_SPEED_MED |		\
53 	PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST)
54 
55 #define MX6Q_QMX6_PFUZE_MUX		IMX_GPIO_NR(6, 9)
56 
57 
58 #define ENET_PAD_CTRL  (PAD_CTL_PKE | PAD_CTL_PUE |		\
59 	PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED   |		\
60 	PAD_CTL_DSE_40ohm   | PAD_CTL_HYS)
61 
dram_init(void)62 int dram_init(void)
63 {
64 	gd->ram_size = imx_ddr_size();
65 
66 	return 0;
67 }
68 
69 static iomux_v3_cfg_t const uart2_pads[] = {
70 	IOMUX_PADS(PAD_EIM_D26__UART2_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL)),
71 	IOMUX_PADS(PAD_EIM_D27__UART2_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL)),
72 };
73 
74 #ifndef CONFIG_SPL_BUILD
75 static iomux_v3_cfg_t const usdhc2_pads[] = {
76 	IOMUX_PADS(PAD_SD2_CLK__SD2_CLK   | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
77 	IOMUX_PADS(PAD_SD2_CMD__SD2_CMD   | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
78 	IOMUX_PADS(PAD_SD2_DAT0__SD2_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
79 	IOMUX_PADS(PAD_SD2_DAT1__SD2_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
80 	IOMUX_PADS(PAD_SD2_DAT2__SD2_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
81 	IOMUX_PADS(PAD_SD2_DAT3__SD2_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
82 	IOMUX_PADS(PAD_GPIO_4__GPIO1_IO04      | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
83 };
84 
85 static iomux_v3_cfg_t const usdhc3_pads[] = {
86 	IOMUX_PADS(PAD_SD3_CLK__SD3_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
87 	IOMUX_PADS(PAD_SD3_CMD__SD3_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
88 	IOMUX_PADS(PAD_SD3_DAT0__SD3_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
89 	IOMUX_PADS(PAD_SD3_DAT1__SD3_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
90 	IOMUX_PADS(PAD_SD3_DAT2__SD3_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
91 	IOMUX_PADS(PAD_SD3_DAT3__SD3_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
92 	IOMUX_PADS(PAD_SD3_DAT4__SD3_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
93 	IOMUX_PADS(PAD_SD3_DAT5__SD3_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
94 	IOMUX_PADS(PAD_SD3_DAT6__SD3_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
95 	IOMUX_PADS(PAD_SD3_DAT7__SD3_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
96 	IOMUX_PADS(PAD_SD3_RST__SD3_RESET | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
97 };
98 #endif
99 
100 static iomux_v3_cfg_t const usdhc4_pads[] = {
101 	IOMUX_PADS(PAD_SD4_CLK__SD4_CLK   | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
102 	IOMUX_PADS(PAD_SD4_CMD__SD4_CMD   | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
103 	IOMUX_PADS(PAD_SD4_DAT0__SD4_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
104 	IOMUX_PADS(PAD_SD4_DAT1__SD4_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
105 	IOMUX_PADS(PAD_SD4_DAT2__SD4_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
106 	IOMUX_PADS(PAD_SD4_DAT3__SD4_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
107 	IOMUX_PADS(PAD_SD4_DAT4__SD4_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
108 	IOMUX_PADS(PAD_SD4_DAT5__SD4_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
109 	IOMUX_PADS(PAD_SD4_DAT6__SD4_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
110 	IOMUX_PADS(PAD_SD4_DAT7__SD4_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
111 	IOMUX_PADS(PAD_NANDF_D6__GPIO2_IO06    | MUX_PAD_CTRL(NO_PAD_CTRL)),
112 };
113 
114 static iomux_v3_cfg_t const usb_otg_pads[] = {
115 	IOMUX_PADS(PAD_EIM_D22__USB_OTG_PWR | MUX_PAD_CTRL(NO_PAD_CTRL)),
116 	IOMUX_PADS(PAD_GPIO_1__USB_OTG_ID | MUX_PAD_CTRL(NO_PAD_CTRL)),
117 };
118 
119 static iomux_v3_cfg_t enet_pads_ksz9031[] = {
120 	IOMUX_PADS(PAD_ENET_MDIO__ENET_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL)),
121 	IOMUX_PADS(PAD_ENET_MDC__ENET_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL)),
122 	IOMUX_PADS(PAD_RGMII_TXC__RGMII_TXC | MUX_PAD_CTRL(ENET_PAD_CTRL)),
123 	IOMUX_PADS(PAD_RGMII_TD0__RGMII_TD0 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
124 	IOMUX_PADS(PAD_RGMII_TD1__RGMII_TD1 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
125 	IOMUX_PADS(PAD_RGMII_TD2__RGMII_TD2 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
126 	IOMUX_PADS(PAD_RGMII_TD3__RGMII_TD3 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
127 	IOMUX_PADS(PAD_RGMII_TX_CTL__RGMII_TX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL)),
128 	IOMUX_PADS(PAD_ENET_REF_CLK__ENET_TX_CLK | MUX_PAD_CTRL(ENET_PAD_CTRL)),
129 	IOMUX_PADS(PAD_RGMII_RXC__GPIO6_IO30 | MUX_PAD_CTRL(NO_PAD_CTRL)),
130 	IOMUX_PADS(PAD_RGMII_RD0__GPIO6_IO25 | MUX_PAD_CTRL(NO_PAD_CTRL)),
131 	IOMUX_PADS(PAD_RGMII_RD1__GPIO6_IO27 | MUX_PAD_CTRL(NO_PAD_CTRL)),
132 	IOMUX_PADS(PAD_RGMII_RD2__GPIO6_IO28 | MUX_PAD_CTRL(NO_PAD_CTRL)),
133 	IOMUX_PADS(PAD_RGMII_RD3__GPIO6_IO29 | MUX_PAD_CTRL(NO_PAD_CTRL)),
134 	IOMUX_PADS(PAD_RGMII_RX_CTL__GPIO6_IO24 | MUX_PAD_CTRL(NO_PAD_CTRL)),
135 };
136 
137 static iomux_v3_cfg_t enet_pads_final_ksz9031[] = {
138 	IOMUX_PADS(PAD_RGMII_RXC__RGMII_RXC | MUX_PAD_CTRL(ENET_PAD_CTRL)),
139 	IOMUX_PADS(PAD_RGMII_RD0__RGMII_RD0 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
140 	IOMUX_PADS(PAD_RGMII_RD1__RGMII_RD1 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
141 	IOMUX_PADS(PAD_RGMII_RD2__RGMII_RD2 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
142 	IOMUX_PADS(PAD_RGMII_RD3__RGMII_RD3 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
143 	IOMUX_PADS(PAD_RGMII_RX_CTL__RGMII_RX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL)),
144 };
145 
146 static iomux_v3_cfg_t enet_pads_ar8035[] = {
147 	IOMUX_PADS(PAD_ENET_MDIO__ENET_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL)),
148 	IOMUX_PADS(PAD_ENET_MDC__ENET_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL)),
149 	IOMUX_PADS(PAD_RGMII_TXC__RGMII_TXC | MUX_PAD_CTRL(ENET_PAD_CTRL)),
150 	IOMUX_PADS(PAD_RGMII_TD0__RGMII_TD0 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
151 	IOMUX_PADS(PAD_RGMII_TD1__RGMII_TD1 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
152 	IOMUX_PADS(PAD_RGMII_TD2__RGMII_TD2 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
153 	IOMUX_PADS(PAD_RGMII_TD3__RGMII_TD3 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
154 	IOMUX_PADS(PAD_RGMII_TX_CTL__RGMII_TX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL)),
155 	IOMUX_PADS(PAD_ENET_REF_CLK__ENET_TX_CLK | MUX_PAD_CTRL(ENET_PAD_CTRL)),
156 	IOMUX_PADS(PAD_RGMII_RXC__RGMII_RXC | MUX_PAD_CTRL(ENET_PAD_CTRL)),
157 	IOMUX_PADS(PAD_RGMII_RD0__RGMII_RD0 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
158 	IOMUX_PADS(PAD_RGMII_RD1__RGMII_RD1 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
159 	IOMUX_PADS(PAD_RGMII_RD2__RGMII_RD2 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
160 	IOMUX_PADS(PAD_RGMII_RD3__RGMII_RD3 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
161 	IOMUX_PADS(PAD_RGMII_RX_CTL__RGMII_RX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL)),
162 };
163 
164 static iomux_v3_cfg_t const ecspi1_pads[] = {
165 	IOMUX_PADS(PAD_EIM_D16__ECSPI1_SCLK | MUX_PAD_CTRL(SPI_PAD_CTRL)),
166 	IOMUX_PADS(PAD_EIM_D17__ECSPI1_MISO | MUX_PAD_CTRL(SPI_PAD_CTRL)),
167 	IOMUX_PADS(PAD_EIM_D18__ECSPI1_MOSI | MUX_PAD_CTRL(SPI_PAD_CTRL)),
168 	IOMUX_PADS(PAD_EIM_D19__GPIO3_IO19 | MUX_PAD_CTRL(NO_PAD_CTRL)),
169 };
170 
171 #define PC MUX_PAD_CTRL(I2C_PAD_CTRL)
172 struct i2c_pads_info mx6q_i2c_pad_info1 = {
173 	.scl = {
174 		.i2c_mode = MX6Q_PAD_KEY_COL3__I2C2_SCL | PC,
175 		.gpio_mode = MX6Q_PAD_KEY_COL3__GPIO4_IO12 | PC,
176 		.gp = IMX_GPIO_NR(4, 12)
177 	},
178 	.sda = {
179 		.i2c_mode = MX6Q_PAD_KEY_ROW3__I2C2_SDA | PC,
180 		.gpio_mode = MX6Q_PAD_KEY_ROW3__GPIO4_IO13 | PC,
181 		.gp = IMX_GPIO_NR(4, 13)
182 	}
183 };
184 
185 struct i2c_pads_info mx6dl_i2c_pad_info1 = {
186 	.scl = {
187 		.i2c_mode = MX6DL_PAD_KEY_COL3__I2C2_SCL | PC,
188 		.gpio_mode = MX6DL_PAD_KEY_COL3__GPIO4_IO12 | PC,
189 		.gp = IMX_GPIO_NR(4, 12)
190 	},
191 	.sda = {
192 		.i2c_mode = MX6DL_PAD_KEY_ROW3__I2C2_SDA | PC,
193 		.gpio_mode = MX6DL_PAD_KEY_ROW3__GPIO4_IO13 | PC,
194 		.gp = IMX_GPIO_NR(4, 13)
195 	}
196 };
197 
198 #define I2C_PMIC	1	/* I2C2 port is used to connect to the PMIC */
199 
200 struct interface_level {
201 	char *name;
202 	uchar value;
203 };
204 
205 static struct interface_level mipi_levels[] = {
206 	{"0V0", 0x00},
207 	{"2V5", 0x17},
208 };
209 
210 /* setup board specific PMIC */
power_init_board(void)211 int power_init_board(void)
212 {
213 	struct pmic *p;
214 	u32 id1, id2, i;
215 	int ret;
216 	char const *lv_mipi;
217 
218 	/* configure I2C multiplexer */
219 	gpio_direction_output(MX6Q_QMX6_PFUZE_MUX, 1);
220 
221 	power_pfuze100_init(I2C_PMIC);
222 	p = pmic_get("PFUZE100");
223 	if (!p)
224 		return -EINVAL;
225 
226 	ret = pmic_probe(p);
227 	if (ret)
228 		return ret;
229 
230 	pmic_reg_read(p, PFUZE100_DEVICEID, &id1);
231 	pmic_reg_read(p, PFUZE100_REVID, &id2);
232 	printf("PFUZE100 Rev. [%02x/%02x] detected\n", id1, id2);
233 
234 	if (id2 >= 0x20)
235 		return 0;
236 
237 	/* set level of MIPI if specified */
238 	lv_mipi = env_get("lv_mipi");
239 	if (lv_mipi)
240 		return 0;
241 
242 	for (i = 0; i < ARRAY_SIZE(mipi_levels); i++) {
243 		if (!strcmp(mipi_levels[i].name, lv_mipi)) {
244 			printf("set MIPI level %s\n", mipi_levels[i].name);
245 			ret = pmic_reg_write(p, PFUZE100_VGEN4VOL,
246 					     mipi_levels[i].value);
247 			if (ret)
248 				return ret;
249 		}
250 	}
251 
252 	return 0;
253 }
254 
board_eth_init(bd_t * bis)255 int board_eth_init(bd_t *bis)
256 {
257 	struct phy_device *phydev;
258 	struct mii_dev *bus;
259 	unsigned short id1, id2;
260 	int ret;
261 
262 	/* check whether KSZ9031 or AR8035 has to be configured */
263 	SETUP_IOMUX_PADS(enet_pads_ar8035);
264 
265 	/* phy reset */
266 	gpio_direction_output(IMX_GPIO_NR(3, 23), 0);
267 	udelay(2000);
268 	gpio_set_value(IMX_GPIO_NR(3, 23), 1);
269 	udelay(500);
270 
271 	bus = fec_get_miibus(IMX_FEC_BASE, -1);
272 	if (!bus)
273 		return -EINVAL;
274 	phydev = phy_find_by_mask(bus, (0xf << 4), PHY_INTERFACE_MODE_RGMII);
275 	if (!phydev) {
276 		printf("Error: phy device not found.\n");
277 		ret = -ENODEV;
278 		goto free_bus;
279 	}
280 
281 	/* get the PHY id */
282 	id1 = phy_read(phydev, MDIO_DEVAD_NONE, 2);
283 	id2 = phy_read(phydev, MDIO_DEVAD_NONE, 3);
284 
285 	if ((id1 == 0x22) && ((id2 & 0xFFF0) == 0x1620)) {
286 		/* re-configure for Micrel KSZ9031 */
287 		printf("configure Micrel KSZ9031 Ethernet Phy at address %d\n",
288 		       phydev->addr);
289 
290 		/* phy reset: gpio3-23 */
291 		gpio_set_value(IMX_GPIO_NR(3, 23), 0);
292 		gpio_set_value(IMX_GPIO_NR(6, 30), (phydev->addr >> 2));
293 		gpio_set_value(IMX_GPIO_NR(6, 25), 1);
294 		gpio_set_value(IMX_GPIO_NR(6, 27), 1);
295 		gpio_set_value(IMX_GPIO_NR(6, 28), 1);
296 		gpio_set_value(IMX_GPIO_NR(6, 29), 1);
297 		SETUP_IOMUX_PADS(enet_pads_ksz9031);
298 		gpio_set_value(IMX_GPIO_NR(6, 24), 1);
299 		udelay(500);
300 		gpio_set_value(IMX_GPIO_NR(3, 23), 1);
301 		SETUP_IOMUX_PADS(enet_pads_final_ksz9031);
302 	} else if ((id1 == 0x004d) && (id2 == 0xd072)) {
303 		/* configure Atheros AR8035 - actually nothing to do */
304 		printf("configure Atheros AR8035 Ethernet Phy at address %d\n",
305 		       phydev->addr);
306 	} else {
307 		printf("Unknown Ethernet-Phy: 0x%04x 0x%04x\n", id1, id2);
308 		ret = -EINVAL;
309 		goto free_phydev;
310 	}
311 
312 	ret = fec_probe(bis, -1, IMX_FEC_BASE, bus, phydev);
313 	if (ret)
314 		goto free_phydev;
315 
316 	return 0;
317 
318 free_phydev:
319 	free(phydev);
320 free_bus:
321 	free(bus);
322 	return ret;
323 }
324 
mx6_rgmii_rework(struct phy_device * phydev)325 int mx6_rgmii_rework(struct phy_device *phydev)
326 {
327 	unsigned short id1, id2;
328 	unsigned short val;
329 
330 	/* check whether KSZ9031 or AR8035 has to be configured */
331 	id1 = phy_read(phydev, MDIO_DEVAD_NONE, 2);
332 	id2 = phy_read(phydev, MDIO_DEVAD_NONE, 3);
333 
334 	if ((id1 == 0x22) && ((id2 & 0xFFF0) == 0x1620)) {
335 		/* finalize phy configuration for Micrel KSZ9031 */
336 		phy_write(phydev, MDIO_DEVAD_NONE, MMD_ACCESS_CONTROL, 2);
337 		phy_write(phydev, MDIO_DEVAD_NONE, MMD_ACCESS_REG_DATA, 4);
338 		phy_write(phydev, MDIO_DEVAD_NONE, MMD_ACCESS_CONTROL, MII_KSZ9031_MOD_DATA_POST_INC_W | 0x2);
339 		phy_write(phydev, MDIO_DEVAD_NONE, MMD_ACCESS_REG_DATA, 0x0000);
340 
341 		phy_write(phydev, MDIO_DEVAD_NONE, MMD_ACCESS_CONTROL, 2);
342 		phy_write(phydev, MDIO_DEVAD_NONE, MMD_ACCESS_REG_DATA, 5);
343 		phy_write(phydev, MDIO_DEVAD_NONE, MMD_ACCESS_CONTROL, MII_KSZ9031_MOD_DATA_POST_INC_W | 0x2);
344 		phy_write(phydev, MDIO_DEVAD_NONE, MMD_ACCESS_REG_DATA, MII_KSZ9031_MOD_REG);
345 
346 		phy_write(phydev, MDIO_DEVAD_NONE, MMD_ACCESS_CONTROL, 2);
347 		phy_write(phydev, MDIO_DEVAD_NONE, MMD_ACCESS_REG_DATA, 6);
348 		phy_write(phydev, MDIO_DEVAD_NONE, MMD_ACCESS_CONTROL, MII_KSZ9031_MOD_DATA_POST_INC_W | 0x2);
349 		phy_write(phydev, MDIO_DEVAD_NONE, MMD_ACCESS_REG_DATA, 0xFFFF);
350 
351 		phy_write(phydev, MDIO_DEVAD_NONE, MMD_ACCESS_CONTROL, 2);
352 		phy_write(phydev, MDIO_DEVAD_NONE, MMD_ACCESS_REG_DATA, 8);
353 		phy_write(phydev, MDIO_DEVAD_NONE, MMD_ACCESS_CONTROL, MII_KSZ9031_MOD_DATA_POST_INC_W | 0x2);
354 		phy_write(phydev, MDIO_DEVAD_NONE, MMD_ACCESS_REG_DATA, 0x3FFF);
355 
356 		/* fix KSZ9031 link up issue */
357 		phy_write(phydev, MDIO_DEVAD_NONE, MMD_ACCESS_CONTROL, 0x0);
358 		phy_write(phydev, MDIO_DEVAD_NONE, MMD_ACCESS_REG_DATA, 0x4);
359 		phy_write(phydev, MDIO_DEVAD_NONE, MMD_ACCESS_CONTROL, MII_KSZ9031_MOD_DATA_NO_POST_INC);
360 		phy_write(phydev, MDIO_DEVAD_NONE, MMD_ACCESS_REG_DATA, 0x6);
361 		phy_write(phydev, MDIO_DEVAD_NONE, MMD_ACCESS_CONTROL, MII_KSZ9031_MOD_REG);
362 		phy_write(phydev, MDIO_DEVAD_NONE, MMD_ACCESS_REG_DATA, 0x3);
363 		phy_write(phydev, MDIO_DEVAD_NONE, MMD_ACCESS_CONTROL, MII_KSZ9031_MOD_DATA_NO_POST_INC);
364 		phy_write(phydev, MDIO_DEVAD_NONE, MMD_ACCESS_REG_DATA, 0x1A80);
365 	}
366 
367 	if ((id1 == 0x004d) && (id2 == 0xd072)) {
368 		/* enable AR8035 ouput a 125MHz clk from CLK_25M */
369 		phy_write(phydev, MDIO_DEVAD_NONE, MMD_ACCESS_CONTROL, 0x7);
370 		phy_write(phydev, MDIO_DEVAD_NONE, MMD_ACCESS_REG_DATA, MII_KSZ9031_MOD_DATA_POST_INC_RW | 0x16);
371 		phy_write(phydev, MDIO_DEVAD_NONE, MMD_ACCESS_CONTROL, MII_KSZ9031_MOD_DATA_NO_POST_INC | 0x7);
372 		val = phy_read(phydev, MDIO_DEVAD_NONE, MMD_ACCESS_REG_DATA);
373 		val &= 0xfe63;
374 		val |= 0x18;
375 		phy_write(phydev, MDIO_DEVAD_NONE, MMD_ACCESS_REG_DATA, val);
376 
377 		/* introduce tx clock delay */
378 		phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x5);
379 		val = phy_read(phydev, MDIO_DEVAD_NONE, 0x1e);
380 		val |= 0x0100;
381 		phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, val);
382 
383 		/* disable hibernation */
384 		phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0xb);
385 		val = phy_read(phydev, MDIO_DEVAD_NONE, 0x1e);
386 		phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x3c40);
387 	}
388 	return 0;
389 }
390 
board_phy_config(struct phy_device * phydev)391 int board_phy_config(struct phy_device *phydev)
392 {
393 	mx6_rgmii_rework(phydev);
394 
395 	if (phydev->drv->config)
396 		phydev->drv->config(phydev);
397 
398 	return 0;
399 }
400 
setup_iomux_uart(void)401 static void setup_iomux_uart(void)
402 {
403 	SETUP_IOMUX_PADS(uart2_pads);
404 }
405 
406 #ifdef CONFIG_MXC_SPI
setup_spi(void)407 static void setup_spi(void)
408 {
409 	SETUP_IOMUX_PADS(ecspi1_pads);
410 	gpio_direction_output(IMX_GPIO_NR(3, 19), 0);
411 }
412 #endif
413 
414 #ifdef CONFIG_FSL_ESDHC
415 static struct fsl_esdhc_cfg usdhc_cfg[] = {
416 	{USDHC2_BASE_ADDR},
417 	{USDHC3_BASE_ADDR},
418 	{USDHC4_BASE_ADDR},
419 };
420 
board_mmc_getcd(struct mmc * mmc)421 int board_mmc_getcd(struct mmc *mmc)
422 {
423 	struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
424 	int ret = 0;
425 
426 	switch (cfg->esdhc_base) {
427 	case USDHC2_BASE_ADDR:
428 		gpio_direction_input(IMX_GPIO_NR(1, 4));
429 		ret = !gpio_get_value(IMX_GPIO_NR(1, 4));
430 		break;
431 	case USDHC3_BASE_ADDR:
432 		ret = 1;	/* eMMC is always present */
433 		break;
434 	case USDHC4_BASE_ADDR:
435 		gpio_direction_input(IMX_GPIO_NR(2, 6));
436 		ret = !gpio_get_value(IMX_GPIO_NR(2, 6));
437 		break;
438 	default:
439 		printf("Bad USDHC interface\n");
440 	}
441 
442 	return ret;
443 }
444 
board_mmc_init(bd_t * bis)445 int board_mmc_init(bd_t *bis)
446 {
447 #ifndef CONFIG_SPL_BUILD
448 	s32 status = 0;
449 	int i;
450 
451 	usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK);
452 	usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
453 	usdhc_cfg[2].sdhc_clk = mxc_get_clock(MXC_ESDHC4_CLK);
454 
455 	SETUP_IOMUX_PADS(usdhc2_pads);
456 	SETUP_IOMUX_PADS(usdhc3_pads);
457 	SETUP_IOMUX_PADS(usdhc4_pads);
458 
459 	for (i = 0; i < ARRAY_SIZE(usdhc_cfg); i++) {
460 		status = fsl_esdhc_initialize(bis, &usdhc_cfg[i]);
461 		if (status)
462 			return status;
463 	}
464 
465 	return 0;
466 #else
467 	SETUP_IOMUX_PADS(usdhc4_pads);
468 	usdhc_cfg[0].esdhc_base = USDHC4_BASE_ADDR;
469 	usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC4_CLK);
470 	gd->arch.sdhc_clk = usdhc_cfg[0].sdhc_clk;
471 
472 	return fsl_esdhc_initialize(bis, &usdhc_cfg[0]);
473 #endif
474 }
475 #endif
476 
board_ehci_hcd_init(int port)477 int board_ehci_hcd_init(int port)
478 {
479 	switch (port) {
480 	case 0:
481 		SETUP_IOMUX_PADS(usb_otg_pads);
482 		/*
483 		 * set daisy chain for otg_pin_id on 6q.
484 		 * for 6dl, this bit is reserved
485 		 */
486 		imx_iomux_set_gpr_register(1, 13, 1, 1);
487 		break;
488 	case 1:
489 		/* nothing to do */
490 		break;
491 	default:
492 		printf("Invalid USB port: %d\n", port);
493 		return -EINVAL;
494 	}
495 
496 	return 0;
497 }
498 
board_ehci_power(int port,int on)499 int board_ehci_power(int port, int on)
500 {
501 	switch (port) {
502 	case 0:
503 		break;
504 	case 1:
505 		gpio_direction_output(IMX_GPIO_NR(5, 5), on);
506 		break;
507 	default:
508 		printf("Invalid USB port: %d\n", port);
509 		return -EINVAL;
510 	}
511 
512 	return 0;
513 }
514 
515 struct display_info_t {
516 	int bus;
517 	int addr;
518 	int pixfmt;
519 	int (*detect)(struct display_info_t const *dev);
520 	void (*enable)(struct display_info_t const *dev);
521 	struct fb_videomode mode;
522 };
523 
disable_lvds(struct display_info_t const * dev)524 static void disable_lvds(struct display_info_t const *dev)
525 {
526 	struct iomuxc *iomux = (struct iomuxc *)IOMUXC_BASE_ADDR;
527 
528 	clrbits_le32(&iomux->gpr[2], IOMUXC_GPR2_LVDS_CH0_MODE_MASK |
529 		     IOMUXC_GPR2_LVDS_CH1_MODE_MASK);
530 }
531 
do_enable_hdmi(struct display_info_t const * dev)532 static void do_enable_hdmi(struct display_info_t const *dev)
533 {
534 	disable_lvds(dev);
535 	imx_enable_hdmi_phy();
536 }
537 
538 static struct display_info_t const displays[] = {
539 {
540 	.bus = -1,
541 	.addr = 0,
542 	.pixfmt = IPU_PIX_FMT_RGB666,
543 	.detect = NULL,
544 	.enable = NULL,
545 	.mode = {
546 		.name =
547 		"Hannstar-XGA",
548 		.refresh = 60,
549 		.xres = 1024,
550 		.yres = 768,
551 		.pixclock = 15385,
552 		.left_margin = 220,
553 		.right_margin = 40,
554 		.upper_margin = 21,
555 		.lower_margin = 7,
556 		.hsync_len = 60,
557 		.vsync_len = 10,
558 		.sync = FB_SYNC_EXT,
559 		.vmode = FB_VMODE_NONINTERLACED } },
560 {
561 	.bus = -1,
562 	.addr = 0,
563 	.pixfmt = IPU_PIX_FMT_RGB24,
564 	.detect = NULL,
565 	.enable = do_enable_hdmi,
566 	.mode = {
567 		.name = "HDMI",
568 		.refresh = 60,
569 		.xres = 1024,
570 		.yres = 768,
571 		.pixclock = 15385,
572 		.left_margin = 220,
573 		.right_margin = 40,
574 		.upper_margin = 21,
575 		.lower_margin = 7,
576 		.hsync_len = 60,
577 		.vsync_len = 10,
578 		.sync = FB_SYNC_EXT,
579 		.vmode = FB_VMODE_NONINTERLACED } }
580 };
581 
board_video_skip(void)582 int board_video_skip(void)
583 {
584 	int i;
585 	int ret;
586 	char const *panel = env_get("panel");
587 	if (!panel) {
588 		for (i = 0; i < ARRAY_SIZE(displays); i++) {
589 			struct display_info_t const *dev = displays + i;
590 			if (dev->detect && dev->detect(dev)) {
591 				panel = dev->mode.name;
592 				printf("auto-detected panel %s\n", panel);
593 				break;
594 			}
595 		}
596 		if (!panel) {
597 			panel = displays[0].mode.name;
598 			printf("No panel detected: default to %s\n", panel);
599 			i = 0;
600 		}
601 	} else {
602 		for (i = 0; i < ARRAY_SIZE(displays); i++) {
603 			if (!strcmp(panel, displays[i].mode.name))
604 				break;
605 		}
606 	}
607 	if (i < ARRAY_SIZE(displays)) {
608 		ret = ipuv3_fb_init(&displays[i].mode, 0, displays[i].pixfmt);
609 		if (!ret) {
610 			if (displays[i].enable)
611 				displays[i].enable(displays + i);
612 			printf("Display: %s (%ux%u)\n",
613 			       displays[i].mode.name, displays[i].mode.xres,
614 			       displays[i].mode.yres);
615 		} else
616 			printf("LCD %s cannot be configured: %d\n",
617 			       displays[i].mode.name, ret);
618 	} else {
619 		printf("unsupported panel %s\n", panel);
620 		return -EINVAL;
621 	}
622 
623 	return 0;
624 }
625 
setup_display(void)626 static void setup_display(void)
627 {
628 	struct mxc_ccm_reg *mxc_ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
629 	struct iomuxc *iomux = (struct iomuxc *)IOMUXC_BASE_ADDR;
630 	int reg;
631 
632 	enable_ipu_clock();
633 	imx_setup_hdmi();
634 
635 	/* Turn on LDB0, LDB1, IPU,IPU DI0 clocks */
636 	setbits_le32(&mxc_ccm->CCGR3, MXC_CCM_CCGR3_LDB_DI0_MASK |
637 		     MXC_CCM_CCGR3_LDB_DI1_MASK);
638 
639 	/* set LDB0, LDB1 clk select to 011/011 */
640 	reg = readl(&mxc_ccm->cs2cdr);
641 	reg &= ~(MXC_CCM_CS2CDR_LDB_DI0_CLK_SEL_MASK |
642 		 MXC_CCM_CS2CDR_LDB_DI1_CLK_SEL_MASK);
643 	reg |= (3 << MXC_CCM_CS2CDR_LDB_DI0_CLK_SEL_OFFSET) |
644 		(3 << MXC_CCM_CS2CDR_LDB_DI1_CLK_SEL_OFFSET);
645 	writel(reg, &mxc_ccm->cs2cdr);
646 
647 	setbits_le32(&mxc_ccm->cscmr2, MXC_CCM_CSCMR2_LDB_DI0_IPU_DIV |
648 		     MXC_CCM_CSCMR2_LDB_DI1_IPU_DIV);
649 
650 	setbits_le32(&mxc_ccm->chsccdr, CHSCCDR_CLK_SEL_LDB_DI0 <<
651 		     MXC_CCM_CHSCCDR_IPU1_DI0_CLK_SEL_OFFSET |
652 		     CHSCCDR_CLK_SEL_LDB_DI0 <<
653 		     MXC_CCM_CHSCCDR_IPU1_DI1_CLK_SEL_OFFSET);
654 
655 	reg = IOMUXC_GPR2_BGREF_RRMODE_EXTERNAL_RES
656 		| IOMUXC_GPR2_DI1_VS_POLARITY_ACTIVE_LOW
657 		| IOMUXC_GPR2_DI0_VS_POLARITY_ACTIVE_LOW
658 		| IOMUXC_GPR2_BIT_MAPPING_CH1_SPWG
659 		| IOMUXC_GPR2_DATA_WIDTH_CH1_18BIT
660 		| IOMUXC_GPR2_BIT_MAPPING_CH0_SPWG
661 		| IOMUXC_GPR2_DATA_WIDTH_CH0_18BIT
662 		| IOMUXC_GPR2_LVDS_CH0_MODE_DISABLED
663 		| IOMUXC_GPR2_LVDS_CH1_MODE_ENABLED_DI0;
664 	writel(reg, &iomux->gpr[2]);
665 
666 	reg = readl(&iomux->gpr[3]);
667 	reg = (reg & ~(IOMUXC_GPR3_LVDS1_MUX_CTL_MASK |
668 		       IOMUXC_GPR3_HDMI_MUX_CTL_MASK)) |
669 		(IOMUXC_GPR3_MUX_SRC_IPU1_DI0 <<
670 		 IOMUXC_GPR3_LVDS1_MUX_CTL_OFFSET);
671 	writel(reg, &iomux->gpr[3]);
672 }
673 
674 /*
675  * Do not overwrite the console
676  * Use always serial for U-Boot console
677  */
overwrite_console(void)678 int overwrite_console(void)
679 {
680 	return 1;
681 }
682 
board_early_init_f(void)683 int board_early_init_f(void)
684 {
685 	setup_iomux_uart();
686 #ifdef CONFIG_MXC_SPI
687 	setup_spi();
688 #endif
689 	return 0;
690 }
691 
board_init(void)692 int board_init(void)
693 {
694 	/* address of boot parameters */
695 	gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
696 
697 
698 	if (is_mx6dq())
699 		setup_i2c(1, CONFIG_SYS_I2C_SPEED, 0x7f, &mx6q_i2c_pad_info1);
700 	else
701 		setup_i2c(1, CONFIG_SYS_I2C_SPEED, 0x7f, &mx6dl_i2c_pad_info1);
702 
703 	setup_display();
704 
705 #ifdef CONFIG_SATA
706 	setup_sata();
707 #endif
708 
709 	return 0;
710 }
711 
checkboard(void)712 int checkboard(void)
713 {
714 	char *type = "unknown";
715 
716 	if (is_cpu_type(MXC_CPU_MX6Q))
717 		type = "Quad";
718 	else if (is_cpu_type(MXC_CPU_MX6D))
719 		type = "Dual";
720 	else if (is_cpu_type(MXC_CPU_MX6DL))
721 		type = "Dual-Lite";
722 	else if (is_cpu_type(MXC_CPU_MX6SOLO))
723 		type = "Solo";
724 
725 	printf("Board: conga-QMX6 %s\n", type);
726 
727 	return 0;
728 }
729 
730 #ifdef CONFIG_MXC_SPI
board_spi_cs_gpio(unsigned bus,unsigned cs)731 int board_spi_cs_gpio(unsigned bus, unsigned cs)
732 {
733 	return (bus == 0 && cs == 0) ? (IMX_GPIO_NR(3, 19)) : -EINVAL;
734 }
735 #endif
736 
737 #ifdef CONFIG_CMD_BMODE
738 static const struct boot_mode board_boot_modes[] = {
739 	/* 4 bit bus width */
740 	{"mmc0",	MAKE_CFGVAL(0x50, 0x20, 0x00, 0x00)},
741 	{"mmc1",	MAKE_CFGVAL(0x50, 0x38, 0x00, 0x00)},
742 	{NULL,		0},
743 };
744 #endif
745 
misc_init_r(void)746 int misc_init_r(void)
747 {
748 #ifdef CONFIG_CMD_BMODE
749 	add_board_boot_modes(board_boot_modes);
750 #endif
751 	return 0;
752 }
753 
board_late_init(void)754 int board_late_init(void)
755 {
756 #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
757 	if (is_mx6dq())
758 		env_set("board_rev", "MX6Q");
759 	else
760 		env_set("board_rev", "MX6DL");
761 #endif
762 
763 	return 0;
764 }
765 
766 #ifdef CONFIG_SPL_BUILD
767 #include <asm/arch/mx6-ddr.h>
768 #include <spl.h>
769 #include <linux/libfdt.h>
770 #include <spi_flash.h>
771 #include <spi.h>
772 
773 const struct mx6dq_iomux_ddr_regs mx6q_ddr_ioregs = {
774 	.dram_sdclk_0 =  0x00000030,
775 	.dram_sdclk_1 =  0x00000030,
776 	.dram_cas =  0x00000030,
777 	.dram_ras =  0x00000030,
778 	.dram_reset =  0x00000030,
779 	.dram_sdcke0 =  0x00003000,
780 	.dram_sdcke1 =  0x00003000,
781 	.dram_sdba2 =  0x00000000,
782 	.dram_sdodt0 =  0x00000030,
783 	.dram_sdodt1 =  0x00000030,
784 	.dram_sdqs0 =  0x00000030,
785 	.dram_sdqs1 =  0x00000030,
786 	.dram_sdqs2 =  0x00000030,
787 	.dram_sdqs3 =  0x00000030,
788 	.dram_sdqs4 =  0x00000030,
789 	.dram_sdqs5 =  0x00000030,
790 	.dram_sdqs6 =  0x00000030,
791 	.dram_sdqs7 =  0x00000030,
792 	.dram_dqm0 =  0x00000030,
793 	.dram_dqm1 =  0x00000030,
794 	.dram_dqm2 =  0x00000030,
795 	.dram_dqm3 =  0x00000030,
796 	.dram_dqm4 =  0x00000030,
797 	.dram_dqm5 =  0x00000030,
798 	.dram_dqm6 =  0x00000030,
799 	.dram_dqm7 =  0x00000030,
800 };
801 
802 static const struct mx6sdl_iomux_ddr_regs mx6dl_ddr_ioregs = {
803 	.dram_sdclk_0 = 0x00000030,
804 	.dram_sdclk_1 = 0x00000030,
805 	.dram_cas =	0x00000030,
806 	.dram_ras =	0x00000030,
807 	.dram_reset =	0x00000030,
808 	.dram_sdcke0 =	0x00003000,
809 	.dram_sdcke1 =	0x00003000,
810 	.dram_sdba2 =	0x00000000,
811 	.dram_sdodt0 =	0x00000030,
812 	.dram_sdodt1 =	0x00000030,
813 	.dram_sdqs0 =	0x00000030,
814 	.dram_sdqs1 =	0x00000030,
815 	.dram_sdqs2 =	0x00000030,
816 	.dram_sdqs3 =	0x00000030,
817 	.dram_sdqs4 =	0x00000030,
818 	.dram_sdqs5 =	0x00000030,
819 	.dram_sdqs6 =	0x00000030,
820 	.dram_sdqs7 =	0x00000030,
821 	.dram_dqm0 =	0x00000030,
822 	.dram_dqm1 =	0x00000030,
823 	.dram_dqm2 =	0x00000030,
824 	.dram_dqm3 =	0x00000030,
825 	.dram_dqm4 =	0x00000030,
826 	.dram_dqm5 =	0x00000030,
827 	.dram_dqm6 =	0x00000030,
828 	.dram_dqm7 =	0x00000030,
829 };
830 
831 const struct mx6dq_iomux_grp_regs mx6q_grp_ioregs = {
832 	.grp_ddr_type =  0x000C0000,
833 	.grp_ddrmode_ctl =  0x00020000,
834 	.grp_ddrpke =  0x00000000,
835 	.grp_addds =  0x00000030,
836 	.grp_ctlds =  0x00000030,
837 	.grp_ddrmode =  0x00020000,
838 	.grp_b0ds =  0x00000030,
839 	.grp_b1ds =  0x00000030,
840 	.grp_b2ds =  0x00000030,
841 	.grp_b3ds =  0x00000030,
842 	.grp_b4ds =  0x00000030,
843 	.grp_b5ds =  0x00000030,
844 	.grp_b6ds =  0x00000030,
845 	.grp_b7ds =  0x00000030,
846 };
847 
848 static const struct mx6sdl_iomux_grp_regs mx6sdl_grp_ioregs = {
849 	.grp_ddr_type = 0x000c0000,
850 	.grp_ddrmode_ctl = 0x00020000,
851 	.grp_ddrpke = 0x00000000,
852 	.grp_addds = 0x00000030,
853 	.grp_ctlds = 0x00000030,
854 	.grp_ddrmode = 0x00020000,
855 	.grp_b0ds = 0x00000030,
856 	.grp_b1ds = 0x00000030,
857 	.grp_b2ds = 0x00000030,
858 	.grp_b3ds = 0x00000030,
859 	.grp_b4ds = 0x00000030,
860 	.grp_b5ds = 0x00000030,
861 	.grp_b6ds = 0x00000030,
862 	.grp_b7ds = 0x00000030,
863 };
864 
865 const struct mx6_mmdc_calibration mx6q_mmcd_calib = {
866 	.p0_mpwldectrl0 =  0x0016001A,
867 	.p0_mpwldectrl1 =  0x0023001C,
868 	.p1_mpwldectrl0 =  0x0028003A,
869 	.p1_mpwldectrl1 =  0x001F002C,
870 	.p0_mpdgctrl0 =  0x43440354,
871 	.p0_mpdgctrl1 =  0x033C033C,
872 	.p1_mpdgctrl0 =  0x43300368,
873 	.p1_mpdgctrl1 =  0x03500330,
874 	.p0_mprddlctl =  0x3228242E,
875 	.p1_mprddlctl =  0x2C2C2636,
876 	.p0_mpwrdlctl =  0x36323A38,
877 	.p1_mpwrdlctl =  0x42324440,
878 };
879 
880 const struct mx6_mmdc_calibration mx6q_2g_mmcd_calib = {
881 	.p0_mpwldectrl0 =  0x00080016,
882 	.p0_mpwldectrl1 =  0x001D0016,
883 	.p1_mpwldectrl0 =  0x0018002C,
884 	.p1_mpwldectrl1 =  0x000D001D,
885 	.p0_mpdgctrl0 =    0x43200334,
886 	.p0_mpdgctrl1 =    0x0320031C,
887 	.p1_mpdgctrl0 =    0x0344034C,
888 	.p1_mpdgctrl1 =    0x03380314,
889 	.p0_mprddlctl =    0x3E36383A,
890 	.p1_mprddlctl =    0x38363240,
891 	.p0_mpwrdlctl =	   0x36364238,
892 	.p1_mpwrdlctl =    0x4230423E,
893 };
894 
895 static const struct mx6_mmdc_calibration mx6s_mmcd_calib = {
896 	.p0_mpwldectrl0 =  0x00480049,
897 	.p0_mpwldectrl1 =  0x00410044,
898 	.p0_mpdgctrl0 =    0x42480248,
899 	.p0_mpdgctrl1 =    0x023C023C,
900 	.p0_mprddlctl =    0x40424644,
901 	.p0_mpwrdlctl =    0x34323034,
902 };
903 
904 const struct mx6_mmdc_calibration mx6dl_mmcd_calib = {
905 	.p0_mpwldectrl0 =  0x0043004B,
906 	.p0_mpwldectrl1 =  0x003A003E,
907 	.p1_mpwldectrl0 =  0x0047004F,
908 	.p1_mpwldectrl1 =  0x004E0061,
909 	.p0_mpdgctrl0 =    0x42500250,
910 	.p0_mpdgctrl1 =	   0x0238023C,
911 	.p1_mpdgctrl0 =    0x42640264,
912 	.p1_mpdgctrl1 =    0x02500258,
913 	.p0_mprddlctl =    0x40424846,
914 	.p1_mprddlctl =    0x46484842,
915 	.p0_mpwrdlctl =    0x38382C30,
916 	.p1_mpwrdlctl =    0x34343430,
917 };
918 
919 static struct mx6_ddr3_cfg mem_ddr_2g = {
920 	.mem_speed = 1600,
921 	.density = 2,
922 	.width = 16,
923 	.banks = 8,
924 	.rowaddr = 14,
925 	.coladdr = 10,
926 	.pagesz = 2,
927 	.trcd = 1310,
928 	.trcmin = 4875,
929 	.trasmin = 3500,
930 };
931 
932 static struct mx6_ddr3_cfg mem_ddr_4g = {
933 	.mem_speed = 1600,
934 	.density = 4,
935 	.width = 16,
936 	.banks = 8,
937 	.rowaddr = 15,
938 	.coladdr = 10,
939 	.pagesz = 2,
940 	.trcd = 1310,
941 	.trcmin = 4875,
942 	.trasmin = 3500,
943 };
944 
ccgr_init(void)945 static void ccgr_init(void)
946 {
947 	struct mxc_ccm_reg *ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
948 
949 	writel(0x00C03F3F, &ccm->CCGR0);
950 	writel(0x0030FC03, &ccm->CCGR1);
951 	writel(0x0FFFC000, &ccm->CCGR2);
952 	writel(0x3FF00000, &ccm->CCGR3);
953 	writel(0x00FFF300, &ccm->CCGR4);
954 	writel(0x0F0000C3, &ccm->CCGR5);
955 	writel(0x000003FF, &ccm->CCGR6);
956 }
957 
958 /* Define a minimal structure so that the part number can be read via SPL */
959 struct mfgdata {
960 	unsigned char tsize;
961 	/* size of checksummed part in bytes */
962 	unsigned char ckcnt;
963 	/* checksum corrected byte */
964 	unsigned char cksum;
965 	/* decimal serial number, packed BCD */
966 	unsigned char serial[6];
967 	 /* part number, right justified, ASCII */
968 	unsigned char pn[16];
969 };
970 
conv_ascii(unsigned char * dst,unsigned char * src,int len)971 static void conv_ascii(unsigned char *dst, unsigned char *src, int len)
972 {
973 	int remain = len;
974 	unsigned char *sptr = src;
975 	unsigned char *dptr = dst;
976 
977 	while (remain) {
978 		if (*sptr) {
979 			*dptr = *sptr;
980 			dptr++;
981 		}
982 		sptr++;
983 		remain--;
984 	}
985 	*dptr = 0x0;
986 }
987 
988 #define CFG_MFG_ADDR_OFFSET	(spi->size - SZ_16K)
is_2gb(void)989 static bool is_2gb(void)
990 {
991 	struct spi_flash *spi;
992 	int ret;
993 	char buf[sizeof(struct mfgdata)];
994 	struct mfgdata *data = (struct mfgdata *)buf;
995 	unsigned char outbuf[32];
996 
997 	spi = spi_flash_probe(CONFIG_ENV_SPI_BUS,
998 			      CONFIG_ENV_SPI_CS,
999 			      CONFIG_ENV_SPI_MAX_HZ, CONFIG_ENV_SPI_MODE);
1000 	ret = spi_flash_read(spi, CFG_MFG_ADDR_OFFSET, sizeof(struct mfgdata),
1001 			     buf);
1002 	if (ret)
1003 		return false;
1004 
1005 	/* Congatec Part Numbers 104 and 105 have 2GiB of RAM */
1006 	conv_ascii(outbuf, data->pn, sizeof(data->pn));
1007 	if (!memcmp(outbuf, "016104", 6) || !memcmp(outbuf, "016105", 6))
1008 		return true;
1009 	else
1010 		return false;
1011 }
1012 
spl_dram_init(int width)1013 static void spl_dram_init(int width)
1014 {
1015 	struct mx6_ddr_sysinfo sysinfo = {
1016 		/* width of data bus:0=16,1=32,2=64 */
1017 		.dsize = width / 32,
1018 		/* config for full 4GB range so that get_mem_size() works */
1019 		.cs_density = 32, /* 32Gb per CS */
1020 		/* single chip select */
1021 		.ncs = 1,
1022 		.cs1_mirror = 0,
1023 		.rtt_wr = 2,
1024 		.rtt_nom = 2,
1025 		.walat = 0,
1026 		.ralat = 5,
1027 		.mif3_mode = 3,
1028 		.bi_on = 1,
1029 		.sde_to_rst = 0x0d,
1030 		.rst_to_cke = 0x20,
1031 		.refsel = 1,	/* Refresh cycles at 32KHz */
1032 		.refr = 7,	/* 8 refresh commands per refresh cycle */
1033 	};
1034 
1035 	if (is_cpu_type(MXC_CPU_MX6Q) && is_2gb()) {
1036 		mx6dq_dram_iocfg(width, &mx6q_ddr_ioregs, &mx6q_grp_ioregs);
1037 		mx6_dram_cfg(&sysinfo, &mx6q_2g_mmcd_calib, &mem_ddr_4g);
1038 		return;
1039 	}
1040 
1041 	if (is_mx6dq()) {
1042 		mx6dq_dram_iocfg(width, &mx6q_ddr_ioregs, &mx6q_grp_ioregs);
1043 		mx6_dram_cfg(&sysinfo, &mx6q_mmcd_calib, &mem_ddr_2g);
1044 	} else if (is_cpu_type(MXC_CPU_MX6SOLO)) {
1045 		sysinfo.walat = 1;
1046 		mx6sdl_dram_iocfg(width, &mx6dl_ddr_ioregs, &mx6sdl_grp_ioregs);
1047 		mx6_dram_cfg(&sysinfo, &mx6s_mmcd_calib, &mem_ddr_4g);
1048 	} else if (is_cpu_type(MXC_CPU_MX6DL)) {
1049 		sysinfo.walat = 1;
1050 		mx6sdl_dram_iocfg(width, &mx6dl_ddr_ioregs, &mx6sdl_grp_ioregs);
1051 		mx6_dram_cfg(&sysinfo, &mx6dl_mmcd_calib, &mem_ddr_2g);
1052 	}
1053 }
1054 
board_init_f(ulong dummy)1055 void board_init_f(ulong dummy)
1056 {
1057 	/* setup AIPS and disable watchdog */
1058 	arch_cpu_init();
1059 
1060 	ccgr_init();
1061 	gpr_init();
1062 
1063 	/* iomux and setup of i2c */
1064 	board_early_init_f();
1065 
1066 	/* setup GP timer */
1067 	timer_init();
1068 
1069 	/* UART clocks enabled and gd valid - init serial console */
1070 	preloader_console_init();
1071 
1072 	/* Needed for malloc() to work in SPL prior to board_init_r() */
1073 	spl_init();
1074 
1075 	/* DDR initialization */
1076 	if (is_cpu_type(MXC_CPU_MX6SOLO))
1077 		spl_dram_init(32);
1078 	else
1079 		spl_dram_init(64);
1080 
1081 	/* Clear the BSS. */
1082 	memset(__bss_start, 0, __bss_end - __bss_start);
1083 
1084 	/* load/boot image from boot device */
1085 	board_init_r(NULL, 0);
1086 }
1087 #endif
1088