1 /* 2 * Copyright (C) 2007, Guennadi Liakhovetski <lg@denx.de> 3 * 4 * (C) Copyright 2008-2010 Freescale Semiconductor, Inc. 5 * 6 * See file CREDITS for list of people who contributed to this 7 * project. 8 * 9 * This program is free software; you can redistribute it and/or 10 * modify it under the terms of the GNU General Public License as 11 * published by the Free Software Foundation; either version 2 of 12 * the License, or (at your option) any later version. 13 * 14 * This program is distributed in the hope that it will be useful, 15 * but WITHOUT ANY WARRANTY; without even the implied warranty of 16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 * GNU General Public License for more details. 18 * 19 * You should have received a copy of the GNU General Public License 20 * along with this program; if not, write to the Free Software 21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 22 * MA 02111-1307 USA 23 */ 24 25 #include <common.h> 26 #include <asm/io.h> 27 #include <asm/errno.h> 28 #include <asm/arch/imx-regs.h> 29 #include <asm/arch/crm_regs.h> 30 #include <asm/arch/mx35_pins.h> 31 #include <asm/arch/iomux.h> 32 #include <i2c.h> 33 #include <fsl_pmic.h> 34 #include <mc9sdz60.h> 35 #include <mc13892.h> 36 #include <linux/types.h> 37 #include <asm/gpio.h> 38 #include <asm/arch/sys_proto.h> 39 #include <netdev.h> 40 41 #ifndef BOARD_LATE_INIT 42 #error "BOARD_LATE_INIT must be set for this board" 43 #endif 44 45 #ifndef CONFIG_BOARD_EARLY_INIT_F 46 #error "CONFIG_BOARD_EARLY_INIT_F must be set for this board" 47 #endif 48 49 DECLARE_GLOBAL_DATA_PTR; 50 51 int dram_init(void) 52 { 53 u32 size1, size2; 54 55 size1 = get_ram_size((void *)PHYS_SDRAM_1, PHYS_SDRAM_1_SIZE); 56 size2 = get_ram_size((void *)PHYS_SDRAM_2, PHYS_SDRAM_2_SIZE); 57 58 gd->ram_size = size1 + size2; 59 60 return 0; 61 } 62 63 void dram_init_banksize(void) 64 { 65 gd->bd->bi_dram[0].start = PHYS_SDRAM_1; 66 gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE; 67 68 gd->bd->bi_dram[1].start = PHYS_SDRAM_2; 69 gd->bd->bi_dram[1].size = PHYS_SDRAM_2_SIZE; 70 } 71 72 static void setup_iomux_i2c(void) 73 { 74 int pad; 75 76 /* setup pins for I2C1 */ 77 mxc_request_iomux(MX35_PIN_I2C1_CLK, MUX_CONFIG_SION); 78 mxc_request_iomux(MX35_PIN_I2C1_DAT, MUX_CONFIG_SION); 79 80 pad = (PAD_CTL_HYS_SCHMITZ | PAD_CTL_PKE_ENABLE \ 81 | PAD_CTL_PUE_PUD | PAD_CTL_ODE_OpenDrain); 82 83 mxc_iomux_set_pad(MX35_PIN_I2C1_CLK, pad); 84 mxc_iomux_set_pad(MX35_PIN_I2C1_DAT, pad); 85 } 86 87 88 static void setup_iomux_spi(void) 89 { 90 mxc_request_iomux(MX35_PIN_CSPI1_MOSI, MUX_CONFIG_SION); 91 mxc_request_iomux(MX35_PIN_CSPI1_MISO, MUX_CONFIG_SION); 92 mxc_request_iomux(MX35_PIN_CSPI1_SS0, MUX_CONFIG_SION); 93 mxc_request_iomux(MX35_PIN_CSPI1_SS1, MUX_CONFIG_SION); 94 mxc_request_iomux(MX35_PIN_CSPI1_SCLK, MUX_CONFIG_SION); 95 } 96 97 static void setup_iomux_fec(void) 98 { 99 int pad; 100 101 /* setup pins for FEC */ 102 mxc_request_iomux(MX35_PIN_FEC_TX_CLK, MUX_CONFIG_FUNC); 103 mxc_request_iomux(MX35_PIN_FEC_RX_CLK, MUX_CONFIG_FUNC); 104 mxc_request_iomux(MX35_PIN_FEC_RX_DV, MUX_CONFIG_FUNC); 105 mxc_request_iomux(MX35_PIN_FEC_COL, MUX_CONFIG_FUNC); 106 mxc_request_iomux(MX35_PIN_FEC_RDATA0, MUX_CONFIG_FUNC); 107 mxc_request_iomux(MX35_PIN_FEC_TDATA0, MUX_CONFIG_FUNC); 108 mxc_request_iomux(MX35_PIN_FEC_TX_EN, MUX_CONFIG_FUNC); 109 mxc_request_iomux(MX35_PIN_FEC_MDC, MUX_CONFIG_FUNC); 110 mxc_request_iomux(MX35_PIN_FEC_MDIO, MUX_CONFIG_FUNC); 111 mxc_request_iomux(MX35_PIN_FEC_TX_ERR, MUX_CONFIG_FUNC); 112 mxc_request_iomux(MX35_PIN_FEC_RX_ERR, MUX_CONFIG_FUNC); 113 mxc_request_iomux(MX35_PIN_FEC_CRS, MUX_CONFIG_FUNC); 114 mxc_request_iomux(MX35_PIN_FEC_RDATA1, MUX_CONFIG_FUNC); 115 mxc_request_iomux(MX35_PIN_FEC_TDATA1, MUX_CONFIG_FUNC); 116 mxc_request_iomux(MX35_PIN_FEC_RDATA2, MUX_CONFIG_FUNC); 117 mxc_request_iomux(MX35_PIN_FEC_TDATA2, MUX_CONFIG_FUNC); 118 mxc_request_iomux(MX35_PIN_FEC_RDATA3, MUX_CONFIG_FUNC); 119 mxc_request_iomux(MX35_PIN_FEC_TDATA3, MUX_CONFIG_FUNC); 120 121 pad = (PAD_CTL_DRV_3_3V | PAD_CTL_PUE_PUD | PAD_CTL_ODE_CMOS | \ 122 PAD_CTL_DRV_NORMAL | PAD_CTL_SRE_SLOW); 123 124 mxc_iomux_set_pad(MX35_PIN_FEC_TX_CLK, pad | PAD_CTL_HYS_SCHMITZ | \ 125 PAD_CTL_PKE_ENABLE | PAD_CTL_100K_PD); 126 mxc_iomux_set_pad(MX35_PIN_FEC_RX_CLK, pad | PAD_CTL_HYS_SCHMITZ | \ 127 PAD_CTL_PKE_ENABLE | PAD_CTL_100K_PD); 128 mxc_iomux_set_pad(MX35_PIN_FEC_RX_DV, pad | PAD_CTL_HYS_SCHMITZ | \ 129 PAD_CTL_PKE_ENABLE | PAD_CTL_100K_PD); 130 mxc_iomux_set_pad(MX35_PIN_FEC_COL, pad | PAD_CTL_HYS_SCHMITZ | \ 131 PAD_CTL_PKE_ENABLE | PAD_CTL_100K_PD); 132 mxc_iomux_set_pad(MX35_PIN_FEC_RDATA0, pad | PAD_CTL_HYS_SCHMITZ | \ 133 PAD_CTL_PKE_ENABLE | PAD_CTL_100K_PD); 134 mxc_iomux_set_pad(MX35_PIN_FEC_TDATA0, pad | PAD_CTL_HYS_CMOS | \ 135 PAD_CTL_PKE_NONE | PAD_CTL_100K_PD); 136 mxc_iomux_set_pad(MX35_PIN_FEC_TX_EN, pad | PAD_CTL_HYS_CMOS | \ 137 PAD_CTL_PKE_NONE | PAD_CTL_100K_PD); 138 mxc_iomux_set_pad(MX35_PIN_FEC_MDC, pad | PAD_CTL_HYS_CMOS | \ 139 PAD_CTL_PKE_NONE | PAD_CTL_100K_PD); 140 mxc_iomux_set_pad(MX35_PIN_FEC_MDIO, pad | PAD_CTL_HYS_SCHMITZ | \ 141 PAD_CTL_PKE_ENABLE | PAD_CTL_22K_PU); 142 mxc_iomux_set_pad(MX35_PIN_FEC_TX_ERR, pad | PAD_CTL_HYS_CMOS | \ 143 PAD_CTL_PKE_NONE | PAD_CTL_100K_PD); 144 mxc_iomux_set_pad(MX35_PIN_FEC_RX_ERR, pad | PAD_CTL_HYS_SCHMITZ | \ 145 PAD_CTL_PKE_ENABLE | PAD_CTL_100K_PD); 146 mxc_iomux_set_pad(MX35_PIN_FEC_CRS, pad | PAD_CTL_HYS_SCHMITZ | \ 147 PAD_CTL_PKE_ENABLE | PAD_CTL_100K_PD); 148 mxc_iomux_set_pad(MX35_PIN_FEC_RDATA1, pad | PAD_CTL_HYS_SCHMITZ | \ 149 PAD_CTL_PKE_ENABLE | PAD_CTL_100K_PD); 150 mxc_iomux_set_pad(MX35_PIN_FEC_TDATA1, pad | PAD_CTL_HYS_CMOS | \ 151 PAD_CTL_PKE_NONE | PAD_CTL_100K_PD); 152 mxc_iomux_set_pad(MX35_PIN_FEC_RDATA2, pad | PAD_CTL_HYS_SCHMITZ | \ 153 PAD_CTL_PKE_ENABLE | PAD_CTL_100K_PD); 154 mxc_iomux_set_pad(MX35_PIN_FEC_TDATA2, pad | PAD_CTL_HYS_CMOS | \ 155 PAD_CTL_PKE_NONE | PAD_CTL_100K_PD); 156 mxc_iomux_set_pad(MX35_PIN_FEC_RDATA3, pad | PAD_CTL_HYS_SCHMITZ | \ 157 PAD_CTL_PKE_ENABLE | PAD_CTL_100K_PD); 158 mxc_iomux_set_pad(MX35_PIN_FEC_TDATA3, pad | PAD_CTL_HYS_CMOS | \ 159 PAD_CTL_PKE_NONE | PAD_CTL_100K_PD); 160 } 161 162 int board_early_init_f(void) 163 { 164 struct ccm_regs *ccm = 165 (struct ccm_regs *)IMX_CCM_BASE; 166 167 /* enable clocks */ 168 writel(readl(&ccm->cgr0) | 169 MXC_CCM_CGR0_EMI_MASK | 170 MXC_CCM_CGR0_EDI0_MASK | 171 MXC_CCM_CGR0_EPIT1_MASK, 172 &ccm->cgr0); 173 174 writel(readl(&ccm->cgr1) | 175 MXC_CCM_CGR1_FEC_MASK | 176 MXC_CCM_CGR1_GPIO1_MASK | 177 MXC_CCM_CGR1_GPIO2_MASK | 178 MXC_CCM_CGR1_GPIO3_MASK | 179 MXC_CCM_CGR1_I2C1_MASK | 180 MXC_CCM_CGR1_I2C2_MASK | 181 MXC_CCM_CGR1_IPU_MASK, 182 &ccm->cgr1); 183 184 /* Setup NAND */ 185 __raw_writel(readl(&ccm->rcsr) | MXC_CCM_RCSR_NFC_FMS, &ccm->rcsr); 186 187 setup_iomux_i2c(); 188 setup_iomux_fec(); 189 setup_iomux_spi(); 190 191 return 0; 192 } 193 194 int board_init(void) 195 { 196 gd->bd->bi_arch_number = MACH_TYPE_MX35_3DS; /* board id for linux */ 197 /* address of boot parameters */ 198 gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100; 199 200 return 0; 201 } 202 203 static inline int pmic_detect(void) 204 { 205 int id; 206 207 id = pmic_reg_read(REG_IDENTIFICATION); 208 209 id = (id >> 6) & 0x7; 210 if (id == 0x7) 211 return 1; 212 return 0; 213 } 214 215 u32 get_board_rev(void) 216 { 217 int rev; 218 219 rev = pmic_detect(); 220 221 return (get_cpu_rev() & ~(0xF << 8)) | (rev & 0xF) << 8; 222 } 223 224 int board_late_init(void) 225 { 226 u8 val; 227 u32 pmic_val; 228 229 if (pmic_detect()) { 230 mxc_request_iomux(MX35_PIN_WATCHDOG_RST, MUX_CONFIG_SION | 231 MUX_CONFIG_ALT1); 232 233 pmic_val = pmic_reg_read(REG_SETTING_0); 234 pmic_reg_write(REG_SETTING_0, pmic_val | VO_1_30V | VO_1_50V); 235 pmic_val = pmic_reg_read(REG_MODE_0); 236 pmic_reg_write(REG_MODE_0, pmic_val | VGEN3EN); 237 238 mxc_request_iomux(MX35_PIN_COMPARE, MUX_CONFIG_GPIO); 239 mxc_iomux_set_input(MUX_IN_GPIO1_IN_5, INPUT_CTL_PATH0); 240 241 gpio_direction_output(37, 1); 242 } 243 244 val = mc9sdz60_reg_read(MC9SDZ60_REG_GPIO_1) | 0x04; 245 mc9sdz60_reg_write(MC9SDZ60_REG_GPIO_1, val); 246 mdelay(200); 247 248 val = mc9sdz60_reg_read(MC9SDZ60_REG_RESET_1) & 0x7F; 249 mc9sdz60_reg_write(MC9SDZ60_REG_RESET_1, val); 250 mdelay(200); 251 252 val |= 0x80; 253 mc9sdz60_reg_write(MC9SDZ60_REG_RESET_1, val); 254 255 return 0; 256 } 257 258 int checkboard(void) 259 { 260 struct ccm_regs *ccm = 261 (struct ccm_regs *)IMX_CCM_BASE; 262 u32 cpu_rev = get_cpu_rev(); 263 264 /* 265 * Be sure that I2C is initialized to check 266 * the board revision 267 */ 268 i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE); 269 270 /* Print board revision */ 271 printf("Board: MX35 PDK %d.0 ", ((get_board_rev() >> 8) + 1) & 0x0F); 272 273 /* Print CPU revision */ 274 printf("i.MX35 %d.%d [", (cpu_rev & 0xF0) >> 4, cpu_rev & 0x0F); 275 276 switch (readl(&ccm->rcsr) & 0x0F) { 277 case 0x0000: 278 puts("POR"); 279 break; 280 case 0x0002: 281 puts("JTAG"); 282 break; 283 case 0x0004: 284 puts("RST"); 285 break; 286 case 0x0008: 287 puts("WDT"); 288 break; 289 default: 290 puts("unknown"); 291 } 292 puts("]\n"); 293 294 return 0; 295 } 296 297 int board_eth_init(bd_t *bis) 298 { 299 int rc = -ENODEV; 300 #if defined(CONFIG_SMC911X) 301 rc = smc911x_initialize(0, CONFIG_SMC911X_BASE); 302 #endif 303 304 cpu_eth_init(bis); 305 306 return rc; 307 } 308