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 void 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 
70 u32 get_board_rev(void)
71 {
72 	struct iim_regs *iim = (struct iim_regs *)IMX_IIM_BASE;
73 	struct fuse_bank *bank = &iim->bank[0];
74 	struct fuse_bank0_regs *fuse =
75 		(struct fuse_bank0_regs *)bank->fuse_regs;
76 
77 	int rev = readl(&fuse->gp[6]);
78 
79 	if (!i2c_probe(CONFIG_SYS_DIALOG_PMIC_I2C_ADDR))
80 		rev = 0;
81 
82 	return (get_cpu_rev() & ~(0xF << 8)) | (rev & 0xF) << 8;
83 }
84 
85 #define UART_PAD_CTRL	(PAD_CTL_HYS | PAD_CTL_DSE_HIGH | \
86 			 PAD_CTL_PUS_100K_UP | PAD_CTL_ODE)
87 
88 static void setup_iomux_uart(void)
89 {
90 	static const iomux_v3_cfg_t uart_pads[] = {
91 		NEW_PAD_CTRL(MX53_PAD_CSI0_DAT11__UART1_RXD_MUX, UART_PAD_CTRL),
92 		NEW_PAD_CTRL(MX53_PAD_CSI0_DAT10__UART1_TXD_MUX, UART_PAD_CTRL),
93 	};
94 
95 	imx_iomux_v3_setup_multiple_pads(uart_pads, ARRAY_SIZE(uart_pads));
96 }
97 
98 #ifdef CONFIG_USB_EHCI_MX5
99 int board_ehci_hcd_init(int port)
100 {
101 	/* request VBUS power enable pin, GPIO7_8 */
102 	imx_iomux_v3_setup_pad(MX53_PAD_PATA_DA_2__GPIO7_8);
103 	gpio_direction_output(IMX_GPIO_NR(7, 8), 1);
104 	return 0;
105 }
106 #endif
107 
108 static void setup_iomux_fec(void)
109 {
110 	static const iomux_v3_cfg_t fec_pads[] = {
111 		NEW_PAD_CTRL(MX53_PAD_FEC_MDIO__FEC_MDIO, PAD_CTL_HYS |
112 			PAD_CTL_DSE_HIGH | PAD_CTL_PUS_22K_UP | PAD_CTL_ODE),
113 		NEW_PAD_CTRL(MX53_PAD_FEC_MDC__FEC_MDC, PAD_CTL_DSE_HIGH),
114 		NEW_PAD_CTRL(MX53_PAD_FEC_RXD1__FEC_RDATA_1,
115 				PAD_CTL_HYS | PAD_CTL_PKE),
116 		NEW_PAD_CTRL(MX53_PAD_FEC_RXD0__FEC_RDATA_0,
117 				PAD_CTL_HYS | PAD_CTL_PKE),
118 		NEW_PAD_CTRL(MX53_PAD_FEC_TXD1__FEC_TDATA_1, PAD_CTL_DSE_HIGH),
119 		NEW_PAD_CTRL(MX53_PAD_FEC_TXD0__FEC_TDATA_0, PAD_CTL_DSE_HIGH),
120 		NEW_PAD_CTRL(MX53_PAD_FEC_TX_EN__FEC_TX_EN, PAD_CTL_DSE_HIGH),
121 		NEW_PAD_CTRL(MX53_PAD_FEC_REF_CLK__FEC_TX_CLK,
122 				PAD_CTL_HYS | PAD_CTL_PKE),
123 		NEW_PAD_CTRL(MX53_PAD_FEC_RX_ER__FEC_RX_ER,
124 				PAD_CTL_HYS | PAD_CTL_PKE),
125 		NEW_PAD_CTRL(MX53_PAD_FEC_CRS_DV__FEC_RX_DV,
126 				PAD_CTL_HYS | PAD_CTL_PKE),
127 	};
128 
129 	imx_iomux_v3_setup_multiple_pads(fec_pads, ARRAY_SIZE(fec_pads));
130 }
131 
132 #ifdef CONFIG_FSL_ESDHC
133 struct fsl_esdhc_cfg esdhc_cfg[2] = {
134 	{MMC_SDHC1_BASE_ADDR},
135 	{MMC_SDHC3_BASE_ADDR},
136 };
137 
138 int board_mmc_getcd(struct mmc *mmc)
139 {
140 	struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
141 	int ret;
142 
143 	imx_iomux_v3_setup_pad(MX53_PAD_EIM_DA11__GPIO3_11);
144 	gpio_direction_input(IMX_GPIO_NR(3, 11));
145 	imx_iomux_v3_setup_pad(MX53_PAD_EIM_DA13__GPIO3_13);
146 	gpio_direction_input(IMX_GPIO_NR(3, 13));
147 
148 	if (cfg->esdhc_base == MMC_SDHC1_BASE_ADDR)
149 		ret = !gpio_get_value(IMX_GPIO_NR(3, 13));
150 	else
151 		ret = !gpio_get_value(IMX_GPIO_NR(3, 11));
152 
153 	return ret;
154 }
155 
156 #define SD_CMD_PAD_CTRL		(PAD_CTL_HYS | PAD_CTL_DSE_HIGH | \
157 				 PAD_CTL_PUS_100K_UP)
158 #define SD_PAD_CTRL		(PAD_CTL_HYS | PAD_CTL_PUS_47K_UP | \
159 				 PAD_CTL_DSE_HIGH)
160 
161 int board_mmc_init(bd_t *bis)
162 {
163 	static const iomux_v3_cfg_t sd1_pads[] = {
164 		NEW_PAD_CTRL(MX53_PAD_SD1_CMD__ESDHC1_CMD, SD_CMD_PAD_CTRL),
165 		NEW_PAD_CTRL(MX53_PAD_SD1_CLK__ESDHC1_CLK, SD_PAD_CTRL),
166 		NEW_PAD_CTRL(MX53_PAD_SD1_DATA0__ESDHC1_DAT0, SD_PAD_CTRL),
167 		NEW_PAD_CTRL(MX53_PAD_SD1_DATA1__ESDHC1_DAT1, SD_PAD_CTRL),
168 		NEW_PAD_CTRL(MX53_PAD_SD1_DATA2__ESDHC1_DAT2, SD_PAD_CTRL),
169 		NEW_PAD_CTRL(MX53_PAD_SD1_DATA3__ESDHC1_DAT3, SD_PAD_CTRL),
170 		MX53_PAD_EIM_DA13__GPIO3_13,
171 	};
172 
173 	static const iomux_v3_cfg_t sd2_pads[] = {
174 		NEW_PAD_CTRL(MX53_PAD_PATA_RESET_B__ESDHC3_CMD,
175 				SD_CMD_PAD_CTRL),
176 		NEW_PAD_CTRL(MX53_PAD_PATA_IORDY__ESDHC3_CLK, SD_PAD_CTRL),
177 		NEW_PAD_CTRL(MX53_PAD_PATA_DATA8__ESDHC3_DAT0, SD_PAD_CTRL),
178 		NEW_PAD_CTRL(MX53_PAD_PATA_DATA9__ESDHC3_DAT1, SD_PAD_CTRL),
179 		NEW_PAD_CTRL(MX53_PAD_PATA_DATA10__ESDHC3_DAT2, SD_PAD_CTRL),
180 		NEW_PAD_CTRL(MX53_PAD_PATA_DATA11__ESDHC3_DAT3, SD_PAD_CTRL),
181 		NEW_PAD_CTRL(MX53_PAD_PATA_DATA0__ESDHC3_DAT4, SD_PAD_CTRL),
182 		NEW_PAD_CTRL(MX53_PAD_PATA_DATA1__ESDHC3_DAT5, SD_PAD_CTRL),
183 		NEW_PAD_CTRL(MX53_PAD_PATA_DATA2__ESDHC3_DAT6, SD_PAD_CTRL),
184 		NEW_PAD_CTRL(MX53_PAD_PATA_DATA3__ESDHC3_DAT7, SD_PAD_CTRL),
185 		MX53_PAD_EIM_DA11__GPIO3_11,
186 	};
187 
188 	u32 index;
189 	int ret;
190 
191 	esdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);
192 	esdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
193 
194 	for (index = 0; index < CONFIG_SYS_FSL_ESDHC_NUM; index++) {
195 		switch (index) {
196 		case 0:
197 			imx_iomux_v3_setup_multiple_pads(sd1_pads,
198 							 ARRAY_SIZE(sd1_pads));
199 			break;
200 		case 1:
201 			imx_iomux_v3_setup_multiple_pads(sd2_pads,
202 							 ARRAY_SIZE(sd2_pads));
203 			break;
204 		default:
205 			printf("Warning: you configured more ESDHC controller"
206 				"(%d) as supported by the board(2)\n",
207 				CONFIG_SYS_FSL_ESDHC_NUM);
208 			return -EINVAL;
209 		}
210 		ret = fsl_esdhc_initialize(bis, &esdhc_cfg[index]);
211 		if (ret)
212 			return ret;
213 	}
214 
215 	return 0;
216 }
217 #endif
218 
219 #define I2C_PAD_CTRL	(PAD_CTL_SRE_FAST | PAD_CTL_DSE_HIGH | \
220 			 PAD_CTL_PUS_100K_UP | PAD_CTL_ODE)
221 
222 static void setup_iomux_i2c(void)
223 {
224 	static const iomux_v3_cfg_t i2c1_pads[] = {
225 		NEW_PAD_CTRL(MX53_PAD_CSI0_DAT8__I2C1_SDA, I2C_PAD_CTRL),
226 		NEW_PAD_CTRL(MX53_PAD_CSI0_DAT9__I2C1_SCL, I2C_PAD_CTRL),
227 	};
228 
229 	imx_iomux_v3_setup_multiple_pads(i2c1_pads, ARRAY_SIZE(i2c1_pads));
230 }
231 
232 static int power_init(void)
233 {
234 	unsigned int val;
235 	int ret;
236 	struct pmic *p;
237 
238 	if (!i2c_probe(CONFIG_SYS_DIALOG_PMIC_I2C_ADDR)) {
239 		ret = pmic_dialog_init(I2C_PMIC);
240 		if (ret)
241 			return ret;
242 
243 		p = pmic_get("DIALOG_PMIC");
244 		if (!p)
245 			return -ENODEV;
246 
247 		setenv("fdt_file", "imx53-qsb.dtb");
248 
249 		/* Set VDDA to 1.25V */
250 		val = DA9052_BUCKCORE_BCOREEN | DA_BUCKCORE_VBCORE_1_250V;
251 		ret = pmic_reg_write(p, DA9053_BUCKCORE_REG, val);
252 		if (ret) {
253 			printf("Writing to BUCKCORE_REG failed: %d\n", ret);
254 			return ret;
255 		}
256 
257 		pmic_reg_read(p, DA9053_SUPPLY_REG, &val);
258 		val |= DA9052_SUPPLY_VBCOREGO;
259 		ret = pmic_reg_write(p, DA9053_SUPPLY_REG, val);
260 		if (ret) {
261 			printf("Writing to SUPPLY_REG failed: %d\n", ret);
262 			return ret;
263 		}
264 
265 		/* Set Vcc peripheral to 1.30V */
266 		ret = pmic_reg_write(p, DA9053_BUCKPRO_REG, 0x62);
267 		if (ret) {
268 			printf("Writing to BUCKPRO_REG failed: %d\n", ret);
269 			return ret;
270 		}
271 
272 		ret = pmic_reg_write(p, DA9053_SUPPLY_REG, 0x62);
273 		if (ret) {
274 			printf("Writing to SUPPLY_REG failed: %d\n", ret);
275 			return ret;
276 		}
277 
278 		return ret;
279 	}
280 
281 	if (!i2c_probe(CONFIG_SYS_FSL_PMIC_I2C_ADDR)) {
282 		ret = pmic_init(I2C_0);
283 		if (ret)
284 			return ret;
285 
286 		p = pmic_get("FSL_PMIC");
287 		if (!p)
288 			return -ENODEV;
289 
290 		setenv("fdt_file", "imx53-qsrb.dtb");
291 
292 		/* Set VDDGP to 1.25V for 1GHz on SW1 */
293 		pmic_reg_read(p, REG_SW_0, &val);
294 		val = (val & ~SWx_VOLT_MASK_MC34708) | SWx_1_250V_MC34708;
295 		ret = pmic_reg_write(p, REG_SW_0, val);
296 		if (ret) {
297 			printf("Writing to REG_SW_0 failed: %d\n", ret);
298 			return ret;
299 		}
300 
301 		/* Set VCC as 1.30V on SW2 */
302 		pmic_reg_read(p, REG_SW_1, &val);
303 		val = (val & ~SWx_VOLT_MASK_MC34708) | SWx_1_300V_MC34708;
304 		ret = pmic_reg_write(p, REG_SW_1, val);
305 		if (ret) {
306 			printf("Writing to REG_SW_1 failed: %d\n", ret);
307 			return ret;
308 		}
309 
310 		/* Set global reset timer to 4s */
311 		pmic_reg_read(p, REG_POWER_CTL2, &val);
312 		val = (val & ~TIMER_MASK_MC34708) | TIMER_4S_MC34708;
313 		ret = pmic_reg_write(p, REG_POWER_CTL2, val);
314 		if (ret) {
315 			printf("Writing to REG_POWER_CTL2 failed: %d\n", ret);
316 			return ret;
317 		}
318 
319 		/* Set VUSBSEL and VUSBEN for USB PHY supply*/
320 		pmic_reg_read(p, REG_MODE_0, &val);
321 		val |= (VUSBSEL_MC34708 | VUSBEN_MC34708);
322 		ret = pmic_reg_write(p, REG_MODE_0, val);
323 		if (ret) {
324 			printf("Writing to REG_MODE_0 failed: %d\n", ret);
325 			return ret;
326 		}
327 
328 		/* Set SWBST to 5V in auto mode */
329 		val = SWBST_AUTO;
330 		ret = pmic_reg_write(p, SWBST_CTRL, val);
331 		if (ret) {
332 			printf("Writing to SWBST_CTRL failed: %d\n", ret);
333 			return ret;
334 		}
335 
336 		return ret;
337 	}
338 
339 	return -1;
340 }
341 
342 static void clock_1GHz(void)
343 {
344 	int ret;
345 	u32 ref_clk = MXC_HCLK;
346 	/*
347 	 * After increasing voltage to 1.25V, we can switch
348 	 * CPU clock to 1GHz and DDR to 400MHz safely
349 	 */
350 	ret = mxc_set_clock(ref_clk, 1000, MXC_ARM_CLK);
351 	if (ret)
352 		printf("CPU:   Switch CPU clock to 1GHZ failed\n");
353 
354 	ret = mxc_set_clock(ref_clk, 400, MXC_PERIPH_CLK);
355 	ret |= mxc_set_clock(ref_clk, 400, MXC_DDR_CLK);
356 	if (ret)
357 		printf("CPU:   Switch DDR clock to 400MHz failed\n");
358 }
359 
360 int board_early_init_f(void)
361 {
362 	setup_iomux_uart();
363 	setup_iomux_fec();
364 	setup_iomux_lcd();
365 
366 	return 0;
367 }
368 
369 /*
370  * Do not overwrite the console
371  * Use always serial for U-Boot console
372  */
373 int overwrite_console(void)
374 {
375 	return 1;
376 }
377 
378 int board_init(void)
379 {
380 	gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
381 
382 	mxc_set_sata_internal_clock();
383 	setup_iomux_i2c();
384 
385 	return 0;
386 }
387 
388 int board_late_init(void)
389 {
390 	if (!power_init())
391 		clock_1GHz();
392 
393 	return 0;
394 }
395 
396 int checkboard(void)
397 {
398 	puts("Board: MX53 LOCO\n");
399 
400 	return 0;
401 }
402