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