1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * (C) Copyright 2011 Freescale Semiconductor, Inc.
4  */
5 
6 #include <common.h>
7 #include <asm/io.h>
8 #include <asm/arch/imx-regs.h>
9 #include <asm/arch/sys_proto.h>
10 #include <asm/arch/crm_regs.h>
11 #include <asm/arch/clock.h>
12 #include <asm/arch/iomux-mx53.h>
13 #include <linux/errno.h>
14 #include <netdev.h>
15 #include <mmc.h>
16 #include <fsl_esdhc.h>
17 #include <asm/gpio.h>
18 
19 #define ETHERNET_INT		IMX_GPIO_NR(2, 31)
20 
21 DECLARE_GLOBAL_DATA_PTR;
22 
23 int dram_init(void)
24 {
25 	u32 size1, size2;
26 
27 	size1 = get_ram_size((void *)PHYS_SDRAM_1, PHYS_SDRAM_1_SIZE);
28 	size2 = get_ram_size((void *)PHYS_SDRAM_2, PHYS_SDRAM_2_SIZE);
29 
30 	gd->ram_size = size1 + size2;
31 
32 	return 0;
33 }
34 int dram_init_banksize(void)
35 {
36 	gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
37 	gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
38 
39 	gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
40 	gd->bd->bi_dram[1].size = PHYS_SDRAM_2_SIZE;
41 
42 	return 0;
43 }
44 
45 #ifdef CONFIG_NAND_MXC
46 static void setup_iomux_nand(void)
47 {
48 	static const iomux_v3_cfg_t nand_pads[] = {
49 		NEW_PAD_CTRL(MX53_PAD_NANDF_CS0__EMI_NANDF_CS_0,
50 				PAD_CTL_DSE_HIGH),
51 		NEW_PAD_CTRL(MX53_PAD_NANDF_CS1__EMI_NANDF_CS_1,
52 				PAD_CTL_DSE_HIGH),
53 		NEW_PAD_CTRL(MX53_PAD_NANDF_RB0__EMI_NANDF_RB_0,
54 				PAD_CTL_PUS_100K_UP),
55 		NEW_PAD_CTRL(MX53_PAD_NANDF_CLE__EMI_NANDF_CLE,
56 				PAD_CTL_DSE_HIGH),
57 		NEW_PAD_CTRL(MX53_PAD_NANDF_ALE__EMI_NANDF_ALE,
58 				PAD_CTL_DSE_HIGH),
59 		NEW_PAD_CTRL(MX53_PAD_NANDF_WP_B__EMI_NANDF_WP_B,
60 				PAD_CTL_PUS_100K_UP),
61 		NEW_PAD_CTRL(MX53_PAD_NANDF_RE_B__EMI_NANDF_RE_B,
62 				PAD_CTL_DSE_HIGH),
63 		NEW_PAD_CTRL(MX53_PAD_NANDF_WE_B__EMI_NANDF_WE_B,
64 				PAD_CTL_DSE_HIGH),
65 		NEW_PAD_CTRL(MX53_PAD_EIM_DA0__EMI_NAND_WEIM_DA_0,
66 				PAD_CTL_PKE | PAD_CTL_DSE_HIGH),
67 		NEW_PAD_CTRL(MX53_PAD_EIM_DA1__EMI_NAND_WEIM_DA_1,
68 				PAD_CTL_PKE | PAD_CTL_DSE_HIGH),
69 		NEW_PAD_CTRL(MX53_PAD_EIM_DA2__EMI_NAND_WEIM_DA_2,
70 				PAD_CTL_PKE | PAD_CTL_DSE_HIGH),
71 		NEW_PAD_CTRL(MX53_PAD_EIM_DA3__EMI_NAND_WEIM_DA_3,
72 				PAD_CTL_PKE | PAD_CTL_DSE_HIGH),
73 		NEW_PAD_CTRL(MX53_PAD_EIM_DA4__EMI_NAND_WEIM_DA_4,
74 				PAD_CTL_PKE | PAD_CTL_DSE_HIGH),
75 		NEW_PAD_CTRL(MX53_PAD_EIM_DA5__EMI_NAND_WEIM_DA_5,
76 				PAD_CTL_PKE | PAD_CTL_DSE_HIGH),
77 		NEW_PAD_CTRL(MX53_PAD_EIM_DA6__EMI_NAND_WEIM_DA_6,
78 				PAD_CTL_PKE | PAD_CTL_DSE_HIGH),
79 		NEW_PAD_CTRL(MX53_PAD_EIM_DA7__EMI_NAND_WEIM_DA_7,
80 				PAD_CTL_PKE | PAD_CTL_DSE_HIGH),
81 	};
82 
83 	u32 i, reg;
84 
85 	reg = __raw_readl(M4IF_BASE_ADDR + 0xc);
86 	reg &= ~M4IF_GENP_WEIM_MM_MASK;
87 	__raw_writel(reg, M4IF_BASE_ADDR + 0xc);
88 	for (i = 0x4; i < 0x94; i += 0x18) {
89 		reg = __raw_readl(WEIM_BASE_ADDR + i);
90 		reg &= ~WEIM_GCR2_MUX16_BYP_GRANT_MASK;
91 		__raw_writel(reg, WEIM_BASE_ADDR + i);
92 	}
93 
94 	imx_iomux_v3_setup_multiple_pads(nand_pads, ARRAY_SIZE(nand_pads));
95 }
96 #else
97 static void setup_iomux_nand(void)
98 {
99 }
100 #endif
101 
102 #define UART_PAD_CTRL	(PAD_CTL_HYS | PAD_CTL_DSE_HIGH | \
103 			 PAD_CTL_PUS_100K_UP | PAD_CTL_ODE)
104 
105 static void setup_iomux_uart(void)
106 {
107 	static const iomux_v3_cfg_t uart_pads[] = {
108 		NEW_PAD_CTRL(MX53_PAD_PATA_DMACK__UART1_RXD_MUX, UART_PAD_CTRL),
109 		NEW_PAD_CTRL(MX53_PAD_PATA_DIOW__UART1_TXD_MUX, UART_PAD_CTRL),
110 	};
111 
112 	imx_iomux_v3_setup_multiple_pads(uart_pads, ARRAY_SIZE(uart_pads));
113 }
114 
115 #ifdef CONFIG_FSL_ESDHC
116 struct fsl_esdhc_cfg esdhc_cfg[2] = {
117 	{MMC_SDHC1_BASE_ADDR},
118 	{MMC_SDHC2_BASE_ADDR},
119 };
120 
121 int board_mmc_getcd(struct mmc *mmc)
122 {
123 	struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
124 	int ret;
125 
126 	imx_iomux_v3_setup_pad(MX53_PAD_GPIO_1__GPIO1_1);
127 	gpio_direction_input(IMX_GPIO_NR(1, 1));
128 	imx_iomux_v3_setup_pad(MX53_PAD_GPIO_4__GPIO1_4);
129 	gpio_direction_input(IMX_GPIO_NR(1, 4));
130 
131 	if (cfg->esdhc_base == MMC_SDHC1_BASE_ADDR)
132 		ret = !gpio_get_value(IMX_GPIO_NR(1, 1));
133 	else
134 		ret = !gpio_get_value(IMX_GPIO_NR(1, 4));
135 
136 	return ret;
137 }
138 
139 #define SD_CMD_PAD_CTRL		(PAD_CTL_HYS | PAD_CTL_DSE_HIGH | \
140 				 PAD_CTL_PUS_100K_UP)
141 #define SD_CLK_PAD_CTRL		(PAD_CTL_PUS_47K_UP | PAD_CTL_DSE_HIGH)
142 #define SD_PAD_CTRL		(PAD_CTL_HYS | PAD_CTL_PUS_47K_UP | \
143 				 PAD_CTL_DSE_HIGH)
144 
145 int board_mmc_init(bd_t *bis)
146 {
147 	static const iomux_v3_cfg_t sd1_pads[] = {
148 		NEW_PAD_CTRL(MX53_PAD_SD1_CMD__ESDHC1_CMD, SD_CMD_PAD_CTRL),
149 		NEW_PAD_CTRL(MX53_PAD_SD1_CLK__ESDHC1_CLK, SD_CLK_PAD_CTRL),
150 		NEW_PAD_CTRL(MX53_PAD_SD1_DATA0__ESDHC1_DAT0, SD_PAD_CTRL),
151 		NEW_PAD_CTRL(MX53_PAD_SD1_DATA1__ESDHC1_DAT1, SD_PAD_CTRL),
152 		NEW_PAD_CTRL(MX53_PAD_SD1_DATA2__ESDHC1_DAT2, SD_PAD_CTRL),
153 		NEW_PAD_CTRL(MX53_PAD_SD1_DATA3__ESDHC1_DAT3, SD_PAD_CTRL),
154 	};
155 
156 	static const iomux_v3_cfg_t sd2_pads[] = {
157 		NEW_PAD_CTRL(MX53_PAD_SD2_CMD__ESDHC2_CMD, SD_CMD_PAD_CTRL),
158 		NEW_PAD_CTRL(MX53_PAD_SD2_CLK__ESDHC2_CLK, SD_CLK_PAD_CTRL),
159 		NEW_PAD_CTRL(MX53_PAD_SD2_DATA0__ESDHC2_DAT0, SD_PAD_CTRL),
160 		NEW_PAD_CTRL(MX53_PAD_SD2_DATA1__ESDHC2_DAT1, SD_PAD_CTRL),
161 		NEW_PAD_CTRL(MX53_PAD_SD2_DATA2__ESDHC2_DAT2, SD_PAD_CTRL),
162 		NEW_PAD_CTRL(MX53_PAD_SD2_DATA3__ESDHC2_DAT3, SD_PAD_CTRL),
163 		NEW_PAD_CTRL(MX53_PAD_PATA_DATA12__ESDHC2_DAT4, SD_PAD_CTRL),
164 		NEW_PAD_CTRL(MX53_PAD_PATA_DATA13__ESDHC2_DAT5, SD_PAD_CTRL),
165 		NEW_PAD_CTRL(MX53_PAD_PATA_DATA14__ESDHC2_DAT6, SD_PAD_CTRL),
166 		NEW_PAD_CTRL(MX53_PAD_PATA_DATA15__ESDHC2_DAT7, SD_PAD_CTRL),
167 	};
168 
169 	u32 index;
170 	int ret;
171 
172 	esdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);
173 	esdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK);
174 
175 	for (index = 0; index < CONFIG_SYS_FSL_ESDHC_NUM; index++) {
176 		switch (index) {
177 		case 0:
178 			imx_iomux_v3_setup_multiple_pads(sd1_pads,
179 							 ARRAY_SIZE(sd1_pads));
180 			break;
181 		case 1:
182 			imx_iomux_v3_setup_multiple_pads(sd2_pads,
183 							 ARRAY_SIZE(sd2_pads));
184 			break;
185 		default:
186 			printf("Warning: you configured more ESDHC controller"
187 				"(%d) as supported by the board(2)\n",
188 				CONFIG_SYS_FSL_ESDHC_NUM);
189 			return -EINVAL;
190 		}
191 		ret = fsl_esdhc_initialize(bis, &esdhc_cfg[index]);
192 		if (ret)
193 			return ret;
194 	}
195 
196 	return 0;
197 }
198 #endif
199 
200 static void weim_smc911x_iomux(void)
201 {
202 	static const iomux_v3_cfg_t weim_smc911x_pads[] = {
203 		/* Data bus */
204 		NEW_PAD_CTRL(MX53_PAD_EIM_D16__EMI_WEIM_D_16,
205 				PAD_CTL_PKE | PAD_CTL_DSE_HIGH),
206 		NEW_PAD_CTRL(MX53_PAD_EIM_D17__EMI_WEIM_D_17,
207 				PAD_CTL_PKE | PAD_CTL_DSE_HIGH),
208 		NEW_PAD_CTRL(MX53_PAD_EIM_D18__EMI_WEIM_D_18,
209 				PAD_CTL_PKE | PAD_CTL_DSE_HIGH),
210 		NEW_PAD_CTRL(MX53_PAD_EIM_D19__EMI_WEIM_D_19,
211 				PAD_CTL_PKE | PAD_CTL_DSE_HIGH),
212 		NEW_PAD_CTRL(MX53_PAD_EIM_D20__EMI_WEIM_D_20,
213 				PAD_CTL_PKE | PAD_CTL_DSE_HIGH),
214 		NEW_PAD_CTRL(MX53_PAD_EIM_D21__EMI_WEIM_D_21,
215 				PAD_CTL_PKE | PAD_CTL_DSE_HIGH),
216 		NEW_PAD_CTRL(MX53_PAD_EIM_D22__EMI_WEIM_D_22,
217 				PAD_CTL_PKE | PAD_CTL_DSE_HIGH),
218 		NEW_PAD_CTRL(MX53_PAD_EIM_D23__EMI_WEIM_D_23,
219 				PAD_CTL_PKE | PAD_CTL_DSE_HIGH),
220 		NEW_PAD_CTRL(MX53_PAD_EIM_D24__EMI_WEIM_D_24,
221 				PAD_CTL_PKE | PAD_CTL_DSE_HIGH),
222 		NEW_PAD_CTRL(MX53_PAD_EIM_D25__EMI_WEIM_D_25,
223 				PAD_CTL_PKE | PAD_CTL_DSE_HIGH),
224 		NEW_PAD_CTRL(MX53_PAD_EIM_D26__EMI_WEIM_D_26,
225 				PAD_CTL_PKE | PAD_CTL_DSE_HIGH),
226 		NEW_PAD_CTRL(MX53_PAD_EIM_D27__EMI_WEIM_D_27,
227 				PAD_CTL_PKE | PAD_CTL_DSE_HIGH),
228 		NEW_PAD_CTRL(MX53_PAD_EIM_D28__EMI_WEIM_D_28,
229 				PAD_CTL_PKE | PAD_CTL_DSE_HIGH),
230 		NEW_PAD_CTRL(MX53_PAD_EIM_D29__EMI_WEIM_D_29,
231 				PAD_CTL_PKE | PAD_CTL_DSE_HIGH),
232 		NEW_PAD_CTRL(MX53_PAD_EIM_D30__EMI_WEIM_D_30,
233 				PAD_CTL_PKE | PAD_CTL_DSE_HIGH),
234 		NEW_PAD_CTRL(MX53_PAD_EIM_D31__EMI_WEIM_D_31,
235 				PAD_CTL_PKE | PAD_CTL_DSE_HIGH),
236 
237 		/* Address lines */
238 		NEW_PAD_CTRL(MX53_PAD_EIM_DA0__EMI_NAND_WEIM_DA_0,
239 				PAD_CTL_PKE | PAD_CTL_DSE_HIGH),
240 		NEW_PAD_CTRL(MX53_PAD_EIM_DA1__EMI_NAND_WEIM_DA_1,
241 				PAD_CTL_PKE | PAD_CTL_DSE_HIGH),
242 		NEW_PAD_CTRL(MX53_PAD_EIM_DA2__EMI_NAND_WEIM_DA_2,
243 				PAD_CTL_PKE | PAD_CTL_DSE_HIGH),
244 		NEW_PAD_CTRL(MX53_PAD_EIM_DA3__EMI_NAND_WEIM_DA_3,
245 				PAD_CTL_PKE | PAD_CTL_DSE_HIGH),
246 		NEW_PAD_CTRL(MX53_PAD_EIM_DA4__EMI_NAND_WEIM_DA_4,
247 				PAD_CTL_PKE | PAD_CTL_DSE_HIGH),
248 		NEW_PAD_CTRL(MX53_PAD_EIM_DA5__EMI_NAND_WEIM_DA_5,
249 				PAD_CTL_PKE | PAD_CTL_DSE_HIGH),
250 		NEW_PAD_CTRL(MX53_PAD_EIM_DA6__EMI_NAND_WEIM_DA_6,
251 				PAD_CTL_PKE | PAD_CTL_DSE_HIGH),
252 
253 		/* other EIM signals for ethernet */
254 		MX53_PAD_EIM_OE__EMI_WEIM_OE,
255 		MX53_PAD_EIM_RW__EMI_WEIM_RW,
256 		MX53_PAD_EIM_CS1__EMI_WEIM_CS_1,
257 	};
258 
259 	/* ETHERNET_INT as GPIO2_31 */
260 	imx_iomux_v3_setup_pad(MX53_PAD_EIM_EB3__GPIO2_31);
261 	gpio_direction_input(ETHERNET_INT);
262 
263 	/* WEIM bus */
264 	imx_iomux_v3_setup_multiple_pads(weim_smc911x_pads,
265 						ARRAY_SIZE(weim_smc911x_pads));
266 }
267 
268 static void weim_cs1_settings(void)
269 {
270 	struct weim *weim_regs = (struct weim *)WEIM_BASE_ADDR;
271 
272 	writel(MX53ARD_CS1GCR1, &weim_regs->cs1gcr1);
273 	writel(0x0, &weim_regs->cs1gcr2);
274 	writel(MX53ARD_CS1RCR1, &weim_regs->cs1rcr1);
275 	writel(MX53ARD_CS1RCR2, &weim_regs->cs1rcr2);
276 	writel(MX53ARD_CS1WCR1, &weim_regs->cs1wcr1);
277 	writel(0x0, &weim_regs->cs1wcr2);
278 	writel(0x0, &weim_regs->wcr);
279 
280 	set_chipselect_size(CS0_64M_CS1_64M);
281 }
282 
283 int board_early_init_f(void)
284 {
285 	setup_iomux_nand();
286 	setup_iomux_uart();
287 	return 0;
288 }
289 
290 int board_init(void)
291 {
292 	/* address of boot parameters */
293 	gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
294 
295 	return 0;
296 }
297 
298 int board_eth_init(bd_t *bis)
299 {
300 	int rc = -ENODEV;
301 
302 	weim_smc911x_iomux();
303 	weim_cs1_settings();
304 
305 #ifdef CONFIG_SMC911X
306 	rc = smc911x_initialize(0, CONFIG_SMC911X_BASE);
307 #endif
308 	return rc;
309 }
310 
311 int checkboard(void)
312 {
313 	puts("Board: MX53ARD\n");
314 
315 	return 0;
316 }
317