1 /*
2  * Copyright (C) 2011 Freescale Semiconductor, Inc.
3  * Jason Liu <r64343@freescale.com>
4  *
5  * SPDX-License-Identifier:	GPL-2.0+
6  */
7 
8 #include <common.h>
9 #include <asm/io.h>
10 #include <asm/arch/imx-regs.h>
11 #include <asm/arch/sys_proto.h>
12 #include <asm/arch/crm_regs.h>
13 #include <asm/arch/clock.h>
14 #include <asm/arch/iomux-mx53.h>
15 #include <asm/arch/clock.h>
16 #include <linux/errno.h>
17 #include <asm/imx-common/mx5_video.h>
18 #include <netdev.h>
19 #include <i2c.h>
20 #include <mmc.h>
21 #include <fsl_esdhc.h>
22 #include <asm/gpio.h>
23 #include <power/pmic.h>
24 #include <dialog_pmic.h>
25 #include <fsl_pmic.h>
26 #include <linux/fb.h>
27 #include <ipu_pixfmt.h>
28 
29 #define MX53LOCO_LCD_POWER		IMX_GPIO_NR(3, 24)
30 
31 DECLARE_GLOBAL_DATA_PTR;
32 
33 static uint32_t mx53_dram_size[2];
34 
35 phys_size_t get_effective_memsize(void)
36 {
37 	/*
38 	 * WARNING: We must override get_effective_memsize() function here
39 	 * to report only the size of the first DRAM bank. This is to make
40 	 * U-Boot relocator place U-Boot into valid memory, that is, at the
41 	 * end of the first DRAM bank. If we did not override this function
42 	 * like so, U-Boot would be placed at the address of the first DRAM
43 	 * bank + total DRAM size - sizeof(uboot), which in the setup where
44 	 * each DRAM bank contains 512MiB of DRAM would result in placing
45 	 * U-Boot into invalid memory area close to the end of the first
46 	 * DRAM bank.
47 	 */
48 	return mx53_dram_size[0];
49 }
50 
51 int dram_init(void)
52 {
53 	mx53_dram_size[0] = get_ram_size((void *)PHYS_SDRAM_1, 1 << 30);
54 	mx53_dram_size[1] = get_ram_size((void *)PHYS_SDRAM_2, 1 << 30);
55 
56 	gd->ram_size = mx53_dram_size[0] + mx53_dram_size[1];
57 
58 	return 0;
59 }
60 
61 int dram_init_banksize(void)
62 {
63 	gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
64 	gd->bd->bi_dram[0].size = mx53_dram_size[0];
65 
66 	gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
67 	gd->bd->bi_dram[1].size = mx53_dram_size[1];
68 
69 	return 0;
70 }
71 
72 u32 get_board_rev(void)
73 {
74 	struct iim_regs *iim = (struct iim_regs *)IMX_IIM_BASE;
75 	struct fuse_bank *bank = &iim->bank[0];
76 	struct fuse_bank0_regs *fuse =
77 		(struct fuse_bank0_regs *)bank->fuse_regs;
78 
79 	int rev = readl(&fuse->gp[6]);
80 
81 	if (!i2c_probe(CONFIG_SYS_DIALOG_PMIC_I2C_ADDR))
82 		rev = 0;
83 
84 	return (get_cpu_rev() & ~(0xF << 8)) | (rev & 0xF) << 8;
85 }
86 
87 #define UART_PAD_CTRL	(PAD_CTL_HYS | PAD_CTL_DSE_HIGH | \
88 			 PAD_CTL_PUS_100K_UP | PAD_CTL_ODE)
89 
90 static void setup_iomux_uart(void)
91 {
92 	static const iomux_v3_cfg_t uart_pads[] = {
93 		NEW_PAD_CTRL(MX53_PAD_CSI0_DAT11__UART1_RXD_MUX, UART_PAD_CTRL),
94 		NEW_PAD_CTRL(MX53_PAD_CSI0_DAT10__UART1_TXD_MUX, UART_PAD_CTRL),
95 	};
96 
97 	imx_iomux_v3_setup_multiple_pads(uart_pads, ARRAY_SIZE(uart_pads));
98 }
99 
100 #ifdef CONFIG_USB_EHCI_MX5
101 int board_ehci_hcd_init(int port)
102 {
103 	/* request VBUS power enable pin, GPIO7_8 */
104 	imx_iomux_v3_setup_pad(MX53_PAD_PATA_DA_2__GPIO7_8);
105 	gpio_direction_output(IMX_GPIO_NR(7, 8), 1);
106 	return 0;
107 }
108 #endif
109 
110 static void setup_iomux_fec(void)
111 {
112 	static const iomux_v3_cfg_t fec_pads[] = {
113 		NEW_PAD_CTRL(MX53_PAD_FEC_MDIO__FEC_MDIO, PAD_CTL_HYS |
114 			PAD_CTL_DSE_HIGH | PAD_CTL_PUS_22K_UP | PAD_CTL_ODE),
115 		NEW_PAD_CTRL(MX53_PAD_FEC_MDC__FEC_MDC, PAD_CTL_DSE_HIGH),
116 		NEW_PAD_CTRL(MX53_PAD_FEC_RXD1__FEC_RDATA_1,
117 				PAD_CTL_HYS | PAD_CTL_PKE),
118 		NEW_PAD_CTRL(MX53_PAD_FEC_RXD0__FEC_RDATA_0,
119 				PAD_CTL_HYS | PAD_CTL_PKE),
120 		NEW_PAD_CTRL(MX53_PAD_FEC_TXD1__FEC_TDATA_1, PAD_CTL_DSE_HIGH),
121 		NEW_PAD_CTRL(MX53_PAD_FEC_TXD0__FEC_TDATA_0, PAD_CTL_DSE_HIGH),
122 		NEW_PAD_CTRL(MX53_PAD_FEC_TX_EN__FEC_TX_EN, PAD_CTL_DSE_HIGH),
123 		NEW_PAD_CTRL(MX53_PAD_FEC_REF_CLK__FEC_TX_CLK,
124 				PAD_CTL_HYS | PAD_CTL_PKE),
125 		NEW_PAD_CTRL(MX53_PAD_FEC_RX_ER__FEC_RX_ER,
126 				PAD_CTL_HYS | PAD_CTL_PKE),
127 		NEW_PAD_CTRL(MX53_PAD_FEC_CRS_DV__FEC_RX_DV,
128 				PAD_CTL_HYS | PAD_CTL_PKE),
129 	};
130 
131 	imx_iomux_v3_setup_multiple_pads(fec_pads, ARRAY_SIZE(fec_pads));
132 }
133 
134 #ifdef CONFIG_FSL_ESDHC
135 struct fsl_esdhc_cfg esdhc_cfg[2] = {
136 	{MMC_SDHC1_BASE_ADDR},
137 	{MMC_SDHC3_BASE_ADDR},
138 };
139 
140 int board_mmc_getcd(struct mmc *mmc)
141 {
142 	struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
143 	int ret;
144 
145 	imx_iomux_v3_setup_pad(MX53_PAD_EIM_DA11__GPIO3_11);
146 	gpio_direction_input(IMX_GPIO_NR(3, 11));
147 	imx_iomux_v3_setup_pad(MX53_PAD_EIM_DA13__GPIO3_13);
148 	gpio_direction_input(IMX_GPIO_NR(3, 13));
149 
150 	if (cfg->esdhc_base == MMC_SDHC1_BASE_ADDR)
151 		ret = !gpio_get_value(IMX_GPIO_NR(3, 13));
152 	else
153 		ret = !gpio_get_value(IMX_GPIO_NR(3, 11));
154 
155 	return ret;
156 }
157 
158 #define SD_CMD_PAD_CTRL		(PAD_CTL_HYS | PAD_CTL_DSE_HIGH | \
159 				 PAD_CTL_PUS_100K_UP)
160 #define SD_PAD_CTRL		(PAD_CTL_HYS | PAD_CTL_PUS_47K_UP | \
161 				 PAD_CTL_DSE_HIGH)
162 
163 int board_mmc_init(bd_t *bis)
164 {
165 	static const iomux_v3_cfg_t sd1_pads[] = {
166 		NEW_PAD_CTRL(MX53_PAD_SD1_CMD__ESDHC1_CMD, SD_CMD_PAD_CTRL),
167 		NEW_PAD_CTRL(MX53_PAD_SD1_CLK__ESDHC1_CLK, SD_PAD_CTRL),
168 		NEW_PAD_CTRL(MX53_PAD_SD1_DATA0__ESDHC1_DAT0, SD_PAD_CTRL),
169 		NEW_PAD_CTRL(MX53_PAD_SD1_DATA1__ESDHC1_DAT1, SD_PAD_CTRL),
170 		NEW_PAD_CTRL(MX53_PAD_SD1_DATA2__ESDHC1_DAT2, SD_PAD_CTRL),
171 		NEW_PAD_CTRL(MX53_PAD_SD1_DATA3__ESDHC1_DAT3, SD_PAD_CTRL),
172 		MX53_PAD_EIM_DA13__GPIO3_13,
173 	};
174 
175 	static const iomux_v3_cfg_t sd2_pads[] = {
176 		NEW_PAD_CTRL(MX53_PAD_PATA_RESET_B__ESDHC3_CMD,
177 				SD_CMD_PAD_CTRL),
178 		NEW_PAD_CTRL(MX53_PAD_PATA_IORDY__ESDHC3_CLK, SD_PAD_CTRL),
179 		NEW_PAD_CTRL(MX53_PAD_PATA_DATA8__ESDHC3_DAT0, SD_PAD_CTRL),
180 		NEW_PAD_CTRL(MX53_PAD_PATA_DATA9__ESDHC3_DAT1, SD_PAD_CTRL),
181 		NEW_PAD_CTRL(MX53_PAD_PATA_DATA10__ESDHC3_DAT2, SD_PAD_CTRL),
182 		NEW_PAD_CTRL(MX53_PAD_PATA_DATA11__ESDHC3_DAT3, SD_PAD_CTRL),
183 		NEW_PAD_CTRL(MX53_PAD_PATA_DATA0__ESDHC3_DAT4, SD_PAD_CTRL),
184 		NEW_PAD_CTRL(MX53_PAD_PATA_DATA1__ESDHC3_DAT5, SD_PAD_CTRL),
185 		NEW_PAD_CTRL(MX53_PAD_PATA_DATA2__ESDHC3_DAT6, SD_PAD_CTRL),
186 		NEW_PAD_CTRL(MX53_PAD_PATA_DATA3__ESDHC3_DAT7, SD_PAD_CTRL),
187 		MX53_PAD_EIM_DA11__GPIO3_11,
188 	};
189 
190 	u32 index;
191 	int ret;
192 
193 	esdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);
194 	esdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
195 
196 	for (index = 0; index < CONFIG_SYS_FSL_ESDHC_NUM; index++) {
197 		switch (index) {
198 		case 0:
199 			imx_iomux_v3_setup_multiple_pads(sd1_pads,
200 							 ARRAY_SIZE(sd1_pads));
201 			break;
202 		case 1:
203 			imx_iomux_v3_setup_multiple_pads(sd2_pads,
204 							 ARRAY_SIZE(sd2_pads));
205 			break;
206 		default:
207 			printf("Warning: you configured more ESDHC controller"
208 				"(%d) as supported by the board(2)\n",
209 				CONFIG_SYS_FSL_ESDHC_NUM);
210 			return -EINVAL;
211 		}
212 		ret = fsl_esdhc_initialize(bis, &esdhc_cfg[index]);
213 		if (ret)
214 			return ret;
215 	}
216 
217 	return 0;
218 }
219 #endif
220 
221 #define I2C_PAD_CTRL	(PAD_CTL_SRE_FAST | PAD_CTL_DSE_HIGH | \
222 			 PAD_CTL_PUS_100K_UP | PAD_CTL_ODE)
223 
224 static void setup_iomux_i2c(void)
225 {
226 	static const iomux_v3_cfg_t i2c1_pads[] = {
227 		NEW_PAD_CTRL(MX53_PAD_CSI0_DAT8__I2C1_SDA, I2C_PAD_CTRL),
228 		NEW_PAD_CTRL(MX53_PAD_CSI0_DAT9__I2C1_SCL, I2C_PAD_CTRL),
229 	};
230 
231 	imx_iomux_v3_setup_multiple_pads(i2c1_pads, ARRAY_SIZE(i2c1_pads));
232 }
233 
234 static int power_init(void)
235 {
236 	unsigned int val;
237 	int ret;
238 	struct pmic *p;
239 
240 	if (!i2c_probe(CONFIG_SYS_DIALOG_PMIC_I2C_ADDR)) {
241 		ret = pmic_dialog_init(I2C_PMIC);
242 		if (ret)
243 			return ret;
244 
245 		p = pmic_get("DIALOG_PMIC");
246 		if (!p)
247 			return -ENODEV;
248 
249 		setenv("fdt_file", "imx53-qsb.dtb");
250 
251 		/* Set VDDA to 1.25V */
252 		val = DA9052_BUCKCORE_BCOREEN | DA_BUCKCORE_VBCORE_1_250V;
253 		ret = pmic_reg_write(p, DA9053_BUCKCORE_REG, val);
254 		if (ret) {
255 			printf("Writing to BUCKCORE_REG failed: %d\n", ret);
256 			return ret;
257 		}
258 
259 		pmic_reg_read(p, DA9053_SUPPLY_REG, &val);
260 		val |= DA9052_SUPPLY_VBCOREGO;
261 		ret = pmic_reg_write(p, DA9053_SUPPLY_REG, val);
262 		if (ret) {
263 			printf("Writing to SUPPLY_REG failed: %d\n", ret);
264 			return ret;
265 		}
266 
267 		/* Set Vcc peripheral to 1.30V */
268 		ret = pmic_reg_write(p, DA9053_BUCKPRO_REG, 0x62);
269 		if (ret) {
270 			printf("Writing to BUCKPRO_REG failed: %d\n", ret);
271 			return ret;
272 		}
273 
274 		ret = pmic_reg_write(p, DA9053_SUPPLY_REG, 0x62);
275 		if (ret) {
276 			printf("Writing to SUPPLY_REG failed: %d\n", ret);
277 			return ret;
278 		}
279 
280 		return ret;
281 	}
282 
283 	if (!i2c_probe(CONFIG_SYS_FSL_PMIC_I2C_ADDR)) {
284 		ret = pmic_init(I2C_0);
285 		if (ret)
286 			return ret;
287 
288 		p = pmic_get("FSL_PMIC");
289 		if (!p)
290 			return -ENODEV;
291 
292 		setenv("fdt_file", "imx53-qsrb.dtb");
293 
294 		/* Set VDDGP to 1.25V for 1GHz on SW1 */
295 		pmic_reg_read(p, REG_SW_0, &val);
296 		val = (val & ~SWx_VOLT_MASK_MC34708) | SWx_1_250V_MC34708;
297 		ret = pmic_reg_write(p, REG_SW_0, val);
298 		if (ret) {
299 			printf("Writing to REG_SW_0 failed: %d\n", ret);
300 			return ret;
301 		}
302 
303 		/* Set VCC as 1.30V on SW2 */
304 		pmic_reg_read(p, REG_SW_1, &val);
305 		val = (val & ~SWx_VOLT_MASK_MC34708) | SWx_1_300V_MC34708;
306 		ret = pmic_reg_write(p, REG_SW_1, val);
307 		if (ret) {
308 			printf("Writing to REG_SW_1 failed: %d\n", ret);
309 			return ret;
310 		}
311 
312 		/* Set global reset timer to 4s */
313 		pmic_reg_read(p, REG_POWER_CTL2, &val);
314 		val = (val & ~TIMER_MASK_MC34708) | TIMER_4S_MC34708;
315 		ret = pmic_reg_write(p, REG_POWER_CTL2, val);
316 		if (ret) {
317 			printf("Writing to REG_POWER_CTL2 failed: %d\n", ret);
318 			return ret;
319 		}
320 
321 		/* Set VUSBSEL and VUSBEN for USB PHY supply*/
322 		pmic_reg_read(p, REG_MODE_0, &val);
323 		val |= (VUSBSEL_MC34708 | VUSBEN_MC34708);
324 		ret = pmic_reg_write(p, REG_MODE_0, val);
325 		if (ret) {
326 			printf("Writing to REG_MODE_0 failed: %d\n", ret);
327 			return ret;
328 		}
329 
330 		/* Set SWBST to 5V in auto mode */
331 		val = SWBST_AUTO;
332 		ret = pmic_reg_write(p, SWBST_CTRL, val);
333 		if (ret) {
334 			printf("Writing to SWBST_CTRL failed: %d\n", ret);
335 			return ret;
336 		}
337 
338 		return ret;
339 	}
340 
341 	return -1;
342 }
343 
344 static void clock_1GHz(void)
345 {
346 	int ret;
347 	u32 ref_clk = MXC_HCLK;
348 	/*
349 	 * After increasing voltage to 1.25V, we can switch
350 	 * CPU clock to 1GHz and DDR to 400MHz safely
351 	 */
352 	ret = mxc_set_clock(ref_clk, 1000, MXC_ARM_CLK);
353 	if (ret)
354 		printf("CPU:   Switch CPU clock to 1GHZ failed\n");
355 
356 	ret = mxc_set_clock(ref_clk, 400, MXC_PERIPH_CLK);
357 	ret |= mxc_set_clock(ref_clk, 400, MXC_DDR_CLK);
358 	if (ret)
359 		printf("CPU:   Switch DDR clock to 400MHz failed\n");
360 }
361 
362 int board_early_init_f(void)
363 {
364 	setup_iomux_uart();
365 	setup_iomux_fec();
366 	setup_iomux_lcd();
367 
368 	return 0;
369 }
370 
371 /*
372  * Do not overwrite the console
373  * Use always serial for U-Boot console
374  */
375 int overwrite_console(void)
376 {
377 	return 1;
378 }
379 
380 int board_init(void)
381 {
382 	gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
383 
384 	mxc_set_sata_internal_clock();
385 	setup_iomux_i2c();
386 
387 	return 0;
388 }
389 
390 int board_late_init(void)
391 {
392 	if (!power_init())
393 		clock_1GHz();
394 
395 	return 0;
396 }
397 
398 int checkboard(void)
399 {
400 	puts("Board: MX53 LOCO\n");
401 
402 	return 0;
403 }
404