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 <pmic.h> 34 #include <fsl_pmic.h> 35 #include <mc9sdz60.h> 36 #include <mc13892.h> 37 #include <linux/types.h> 38 #include <asm/gpio.h> 39 #include <asm/arch/sys_proto.h> 40 #include <netdev.h> 41 42 #ifndef CONFIG_BOARD_LATE_INIT 43 #error "CONFIG_BOARD_LATE_INIT must be set for this board" 44 #endif 45 46 #ifndef CONFIG_BOARD_EARLY_INIT_F 47 #error "CONFIG_BOARD_EARLY_INIT_F must be set for this board" 48 #endif 49 50 DECLARE_GLOBAL_DATA_PTR; 51 52 int dram_init(void) 53 { 54 u32 size1, size2; 55 56 size1 = get_ram_size((void *)PHYS_SDRAM_1, PHYS_SDRAM_1_SIZE); 57 size2 = get_ram_size((void *)PHYS_SDRAM_2, PHYS_SDRAM_2_SIZE); 58 59 gd->ram_size = size1 + size2; 60 61 return 0; 62 } 63 64 void dram_init_banksize(void) 65 { 66 gd->bd->bi_dram[0].start = PHYS_SDRAM_1; 67 gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE; 68 69 gd->bd->bi_dram[1].start = PHYS_SDRAM_2; 70 gd->bd->bi_dram[1].size = PHYS_SDRAM_2_SIZE; 71 } 72 73 static void setup_iomux_i2c(void) 74 { 75 int pad; 76 77 /* setup pins for I2C1 */ 78 mxc_request_iomux(MX35_PIN_I2C1_CLK, MUX_CONFIG_SION); 79 mxc_request_iomux(MX35_PIN_I2C1_DAT, MUX_CONFIG_SION); 80 81 pad = (PAD_CTL_HYS_SCHMITZ | PAD_CTL_PKE_ENABLE \ 82 | PAD_CTL_PUE_PUD | PAD_CTL_ODE_OpenDrain); 83 84 mxc_iomux_set_pad(MX35_PIN_I2C1_CLK, pad); 85 mxc_iomux_set_pad(MX35_PIN_I2C1_DAT, pad); 86 } 87 88 89 static void setup_iomux_spi(void) 90 { 91 mxc_request_iomux(MX35_PIN_CSPI1_MOSI, MUX_CONFIG_SION); 92 mxc_request_iomux(MX35_PIN_CSPI1_MISO, MUX_CONFIG_SION); 93 mxc_request_iomux(MX35_PIN_CSPI1_SS0, MUX_CONFIG_SION); 94 mxc_request_iomux(MX35_PIN_CSPI1_SS1, MUX_CONFIG_SION); 95 mxc_request_iomux(MX35_PIN_CSPI1_SCLK, MUX_CONFIG_SION); 96 } 97 98 static void setup_iomux_fec(void) 99 { 100 int pad; 101 102 /* setup pins for FEC */ 103 mxc_request_iomux(MX35_PIN_FEC_TX_CLK, MUX_CONFIG_FUNC); 104 mxc_request_iomux(MX35_PIN_FEC_RX_CLK, MUX_CONFIG_FUNC); 105 mxc_request_iomux(MX35_PIN_FEC_RX_DV, MUX_CONFIG_FUNC); 106 mxc_request_iomux(MX35_PIN_FEC_COL, MUX_CONFIG_FUNC); 107 mxc_request_iomux(MX35_PIN_FEC_RDATA0, MUX_CONFIG_FUNC); 108 mxc_request_iomux(MX35_PIN_FEC_TDATA0, MUX_CONFIG_FUNC); 109 mxc_request_iomux(MX35_PIN_FEC_TX_EN, MUX_CONFIG_FUNC); 110 mxc_request_iomux(MX35_PIN_FEC_MDC, MUX_CONFIG_FUNC); 111 mxc_request_iomux(MX35_PIN_FEC_MDIO, MUX_CONFIG_FUNC); 112 mxc_request_iomux(MX35_PIN_FEC_TX_ERR, MUX_CONFIG_FUNC); 113 mxc_request_iomux(MX35_PIN_FEC_RX_ERR, MUX_CONFIG_FUNC); 114 mxc_request_iomux(MX35_PIN_FEC_CRS, MUX_CONFIG_FUNC); 115 mxc_request_iomux(MX35_PIN_FEC_RDATA1, MUX_CONFIG_FUNC); 116 mxc_request_iomux(MX35_PIN_FEC_TDATA1, MUX_CONFIG_FUNC); 117 mxc_request_iomux(MX35_PIN_FEC_RDATA2, MUX_CONFIG_FUNC); 118 mxc_request_iomux(MX35_PIN_FEC_TDATA2, MUX_CONFIG_FUNC); 119 mxc_request_iomux(MX35_PIN_FEC_RDATA3, MUX_CONFIG_FUNC); 120 mxc_request_iomux(MX35_PIN_FEC_TDATA3, MUX_CONFIG_FUNC); 121 122 pad = (PAD_CTL_DRV_3_3V | PAD_CTL_PUE_PUD | PAD_CTL_ODE_CMOS | \ 123 PAD_CTL_DRV_NORMAL | PAD_CTL_SRE_SLOW); 124 125 mxc_iomux_set_pad(MX35_PIN_FEC_TX_CLK, pad | PAD_CTL_HYS_SCHMITZ | \ 126 PAD_CTL_PKE_ENABLE | PAD_CTL_100K_PD); 127 mxc_iomux_set_pad(MX35_PIN_FEC_RX_CLK, pad | PAD_CTL_HYS_SCHMITZ | \ 128 PAD_CTL_PKE_ENABLE | PAD_CTL_100K_PD); 129 mxc_iomux_set_pad(MX35_PIN_FEC_RX_DV, pad | PAD_CTL_HYS_SCHMITZ | \ 130 PAD_CTL_PKE_ENABLE | PAD_CTL_100K_PD); 131 mxc_iomux_set_pad(MX35_PIN_FEC_COL, pad | PAD_CTL_HYS_SCHMITZ | \ 132 PAD_CTL_PKE_ENABLE | PAD_CTL_100K_PD); 133 mxc_iomux_set_pad(MX35_PIN_FEC_RDATA0, pad | PAD_CTL_HYS_SCHMITZ | \ 134 PAD_CTL_PKE_ENABLE | PAD_CTL_100K_PD); 135 mxc_iomux_set_pad(MX35_PIN_FEC_TDATA0, pad | PAD_CTL_HYS_CMOS | \ 136 PAD_CTL_PKE_NONE | PAD_CTL_100K_PD); 137 mxc_iomux_set_pad(MX35_PIN_FEC_TX_EN, pad | PAD_CTL_HYS_CMOS | \ 138 PAD_CTL_PKE_NONE | PAD_CTL_100K_PD); 139 mxc_iomux_set_pad(MX35_PIN_FEC_MDC, pad | PAD_CTL_HYS_CMOS | \ 140 PAD_CTL_PKE_NONE | PAD_CTL_100K_PD); 141 mxc_iomux_set_pad(MX35_PIN_FEC_MDIO, pad | PAD_CTL_HYS_SCHMITZ | \ 142 PAD_CTL_PKE_ENABLE | PAD_CTL_22K_PU); 143 mxc_iomux_set_pad(MX35_PIN_FEC_TX_ERR, pad | PAD_CTL_HYS_CMOS | \ 144 PAD_CTL_PKE_NONE | PAD_CTL_100K_PD); 145 mxc_iomux_set_pad(MX35_PIN_FEC_RX_ERR, pad | PAD_CTL_HYS_SCHMITZ | \ 146 PAD_CTL_PKE_ENABLE | PAD_CTL_100K_PD); 147 mxc_iomux_set_pad(MX35_PIN_FEC_CRS, pad | PAD_CTL_HYS_SCHMITZ | \ 148 PAD_CTL_PKE_ENABLE | PAD_CTL_100K_PD); 149 mxc_iomux_set_pad(MX35_PIN_FEC_RDATA1, pad | PAD_CTL_HYS_SCHMITZ | \ 150 PAD_CTL_PKE_ENABLE | PAD_CTL_100K_PD); 151 mxc_iomux_set_pad(MX35_PIN_FEC_TDATA1, pad | PAD_CTL_HYS_CMOS | \ 152 PAD_CTL_PKE_NONE | PAD_CTL_100K_PD); 153 mxc_iomux_set_pad(MX35_PIN_FEC_RDATA2, pad | PAD_CTL_HYS_SCHMITZ | \ 154 PAD_CTL_PKE_ENABLE | PAD_CTL_100K_PD); 155 mxc_iomux_set_pad(MX35_PIN_FEC_TDATA2, pad | PAD_CTL_HYS_CMOS | \ 156 PAD_CTL_PKE_NONE | PAD_CTL_100K_PD); 157 mxc_iomux_set_pad(MX35_PIN_FEC_RDATA3, pad | PAD_CTL_HYS_SCHMITZ | \ 158 PAD_CTL_PKE_ENABLE | PAD_CTL_100K_PD); 159 mxc_iomux_set_pad(MX35_PIN_FEC_TDATA3, pad | PAD_CTL_HYS_CMOS | \ 160 PAD_CTL_PKE_NONE | PAD_CTL_100K_PD); 161 } 162 163 int board_early_init_f(void) 164 { 165 struct ccm_regs *ccm = 166 (struct ccm_regs *)IMX_CCM_BASE; 167 168 /* enable clocks */ 169 writel(readl(&ccm->cgr0) | 170 MXC_CCM_CGR0_EMI_MASK | 171 MXC_CCM_CGR0_EDI0_MASK | 172 MXC_CCM_CGR0_EPIT1_MASK, 173 &ccm->cgr0); 174 175 writel(readl(&ccm->cgr1) | 176 MXC_CCM_CGR1_FEC_MASK | 177 MXC_CCM_CGR1_GPIO1_MASK | 178 MXC_CCM_CGR1_GPIO2_MASK | 179 MXC_CCM_CGR1_GPIO3_MASK | 180 MXC_CCM_CGR1_I2C1_MASK | 181 MXC_CCM_CGR1_I2C2_MASK | 182 MXC_CCM_CGR1_IPU_MASK, 183 &ccm->cgr1); 184 185 /* Setup NAND */ 186 __raw_writel(readl(&ccm->rcsr) | MXC_CCM_RCSR_NFC_FMS, &ccm->rcsr); 187 188 setup_iomux_i2c(); 189 setup_iomux_fec(); 190 setup_iomux_spi(); 191 192 return 0; 193 } 194 195 int board_init(void) 196 { 197 gd->bd->bi_arch_number = MACH_TYPE_MX35_3DS; /* board id for linux */ 198 /* address of boot parameters */ 199 gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100; 200 201 return 0; 202 } 203 204 static inline int pmic_detect(void) 205 { 206 unsigned int id; 207 struct pmic *p = get_pmic(); 208 209 pmic_reg_read(p, REG_IDENTIFICATION, &id); 210 211 id = (id >> 6) & 0x7; 212 if (id == 0x7) 213 return 1; 214 return 0; 215 } 216 217 u32 get_board_rev(void) 218 { 219 int rev; 220 221 rev = pmic_detect(); 222 223 return (get_cpu_rev() & ~(0xF << 8)) | (rev & 0xF) << 8; 224 } 225 226 int board_late_init(void) 227 { 228 u8 val; 229 u32 pmic_val; 230 struct pmic *p; 231 232 pmic_init(); 233 if (pmic_detect()) { 234 p = get_pmic(); 235 mxc_request_iomux(MX35_PIN_WATCHDOG_RST, MUX_CONFIG_SION | 236 MUX_CONFIG_ALT1); 237 238 pmic_reg_read(p, REG_SETTING_0, &pmic_val); 239 pmic_reg_write(p, REG_SETTING_0, 240 pmic_val | VO_1_30V | VO_1_50V); 241 pmic_reg_read(p, REG_MODE_0, &pmic_val); 242 pmic_reg_write(p, REG_MODE_0, pmic_val | VGEN3EN); 243 244 mxc_request_iomux(MX35_PIN_COMPARE, MUX_CONFIG_GPIO); 245 mxc_iomux_set_input(MUX_IN_GPIO1_IN_5, INPUT_CTL_PATH0); 246 247 gpio_direction_output(37, 1); 248 } 249 250 val = mc9sdz60_reg_read(MC9SDZ60_REG_GPIO_1) | 0x04; 251 mc9sdz60_reg_write(MC9SDZ60_REG_GPIO_1, val); 252 mdelay(200); 253 254 val = mc9sdz60_reg_read(MC9SDZ60_REG_RESET_1) & 0x7F; 255 mc9sdz60_reg_write(MC9SDZ60_REG_RESET_1, val); 256 mdelay(200); 257 258 val |= 0x80; 259 mc9sdz60_reg_write(MC9SDZ60_REG_RESET_1, val); 260 261 return 0; 262 } 263 264 int checkboard(void) 265 { 266 /* 267 * Be sure that I2C is initialized to check 268 * the board revision 269 */ 270 i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE); 271 272 /* Print board revision */ 273 printf("Board: MX35 PDK %d.0\n", ((get_board_rev() >> 8) + 1) & 0x0F); 274 275 return 0; 276 } 277 278 int board_eth_init(bd_t *bis) 279 { 280 int rc = -ENODEV; 281 #if defined(CONFIG_SMC911X) 282 rc = smc911x_initialize(0, CONFIG_SMC911X_BASE); 283 #endif 284 285 cpu_eth_init(bis); 286 287 return rc; 288 } 289