1 /* 2 * Freescale MX28EVK IOMUX setup 3 * 4 * Copyright (C) 2011 Marek Vasut <marek.vasut@gmail.com> 5 * on behalf of DENX Software Engineering GmbH 6 * 7 * See file CREDITS for list of people who contributed to this 8 * project. 9 * 10 * This program is free software; you can redistribute it and/or 11 * modify it under the terms of the GNU General Public License as 12 * published by the Free Software Foundation; either version 2 of 13 * the License, or (at your option) any later version. 14 * 15 * This program is distributed in the hope that it will be useful, 16 * but WITHOUT ANY WARRANTY; without even the implied warranty of 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 * GNU General Public License for more details. 19 */ 20 21 #include <common.h> 22 #include <config.h> 23 #include <asm/io.h> 24 #include <asm/arch/iomux-mx28.h> 25 #include <asm/arch/imx-regs.h> 26 #include <asm/arch/sys_proto.h> 27 28 #define MUX_CONFIG_SSP0 (MXS_PAD_3V3 | MXS_PAD_8MA | MXS_PAD_PULLUP) 29 #define MUX_CONFIG_GPMI (MXS_PAD_3V3 | MXS_PAD_4MA | MXS_PAD_NOPULL) 30 #define MUX_CONFIG_ENET (MXS_PAD_3V3 | MXS_PAD_8MA | MXS_PAD_PULLUP) 31 #define MUX_CONFIG_EMI (MXS_PAD_3V3 | MXS_PAD_12MA | MXS_PAD_NOPULL) 32 #define MUX_CONFIG_SSP2 (MXS_PAD_3V3 | MXS_PAD_4MA | MXS_PAD_PULLUP) 33 34 const iomux_cfg_t iomux_setup[] = { 35 /* DUART */ 36 MX28_PAD_PWM0__DUART_RX, 37 MX28_PAD_PWM1__DUART_TX, 38 39 /* MMC0 */ 40 MX28_PAD_SSP0_DATA0__SSP0_D0 | MUX_CONFIG_SSP0, 41 MX28_PAD_SSP0_DATA1__SSP0_D1 | MUX_CONFIG_SSP0, 42 MX28_PAD_SSP0_DATA2__SSP0_D2 | MUX_CONFIG_SSP0, 43 MX28_PAD_SSP0_DATA3__SSP0_D3 | MUX_CONFIG_SSP0, 44 MX28_PAD_SSP0_DATA4__SSP0_D4 | MUX_CONFIG_SSP0, 45 MX28_PAD_SSP0_DATA5__SSP0_D5 | MUX_CONFIG_SSP0, 46 MX28_PAD_SSP0_DATA6__SSP0_D6 | MUX_CONFIG_SSP0, 47 MX28_PAD_SSP0_DATA7__SSP0_D7 | MUX_CONFIG_SSP0, 48 MX28_PAD_SSP0_CMD__SSP0_CMD | MUX_CONFIG_SSP0, 49 MX28_PAD_SSP0_DETECT__SSP0_CARD_DETECT | 50 (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_NOPULL), 51 MX28_PAD_SSP0_SCK__SSP0_SCK | 52 (MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_NOPULL), 53 /* write protect */ 54 MX28_PAD_SSP1_SCK__GPIO_2_12, 55 /* MMC0 slot power enable */ 56 MX28_PAD_PWM3__GPIO_3_28 | 57 (MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), 58 59 #ifdef CONFIG_NAND_MXS 60 /* GPMI NAND */ 61 MX28_PAD_GPMI_D00__GPMI_D0 | MUX_CONFIG_GPMI, 62 MX28_PAD_GPMI_D01__GPMI_D1 | MUX_CONFIG_GPMI, 63 MX28_PAD_GPMI_D02__GPMI_D2 | MUX_CONFIG_GPMI, 64 MX28_PAD_GPMI_D03__GPMI_D3 | MUX_CONFIG_GPMI, 65 MX28_PAD_GPMI_D04__GPMI_D4 | MUX_CONFIG_GPMI, 66 MX28_PAD_GPMI_D05__GPMI_D5 | MUX_CONFIG_GPMI, 67 MX28_PAD_GPMI_D06__GPMI_D6 | MUX_CONFIG_GPMI, 68 MX28_PAD_GPMI_D07__GPMI_D7 | MUX_CONFIG_GPMI, 69 MX28_PAD_GPMI_CE0N__GPMI_CE0N | MUX_CONFIG_GPMI, 70 MX28_PAD_GPMI_RDY0__GPMI_READY0 | MUX_CONFIG_GPMI, 71 MX28_PAD_GPMI_RDN__GPMI_RDN | 72 (MXS_PAD_3V3 | MXS_PAD_8MA | MXS_PAD_PULLUP), 73 MX28_PAD_GPMI_WRN__GPMI_WRN | MUX_CONFIG_GPMI, 74 MX28_PAD_GPMI_ALE__GPMI_ALE | MUX_CONFIG_GPMI, 75 MX28_PAD_GPMI_CLE__GPMI_CLE | MUX_CONFIG_GPMI, 76 MX28_PAD_GPMI_RESETN__GPMI_RESETN | MUX_CONFIG_GPMI, 77 #endif 78 79 /* FEC0 */ 80 MX28_PAD_ENET0_MDC__ENET0_MDC | MUX_CONFIG_ENET, 81 MX28_PAD_ENET0_MDIO__ENET0_MDIO | MUX_CONFIG_ENET, 82 MX28_PAD_ENET0_RX_EN__ENET0_RX_EN | MUX_CONFIG_ENET, 83 MX28_PAD_ENET0_TX_EN__ENET0_TX_EN | MUX_CONFIG_ENET, 84 MX28_PAD_ENET0_RXD0__ENET0_RXD0 | MUX_CONFIG_ENET, 85 MX28_PAD_ENET0_RXD1__ENET0_RXD1 | MUX_CONFIG_ENET, 86 MX28_PAD_ENET0_TXD0__ENET0_TXD0 | MUX_CONFIG_ENET, 87 MX28_PAD_ENET0_TXD1__ENET0_TXD1 | MUX_CONFIG_ENET, 88 MX28_PAD_ENET_CLK__CLKCTRL_ENET | MUX_CONFIG_ENET, 89 /* FEC0 Enable */ 90 MX28_PAD_SSP1_DATA3__GPIO_2_15 | 91 (MXS_PAD_12MA | MXS_PAD_3V3), 92 /* FEC0 Reset */ 93 MX28_PAD_ENET0_RX_CLK__GPIO_4_13 | 94 (MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_PULLUP), 95 96 /* FEC1 */ 97 MX28_PAD_ENET0_COL__ENET1_TX_EN | MUX_CONFIG_ENET, 98 MX28_PAD_ENET0_CRS__ENET1_RX_EN | MUX_CONFIG_ENET, 99 MX28_PAD_ENET0_RXD2__ENET1_RXD0 | MUX_CONFIG_ENET, 100 MX28_PAD_ENET0_RXD3__ENET1_RXD1 | MUX_CONFIG_ENET, 101 MX28_PAD_ENET0_TXD2__ENET1_TXD0 | MUX_CONFIG_ENET, 102 MX28_PAD_ENET0_TXD3__ENET1_TXD1 | MUX_CONFIG_ENET, 103 104 /* EMI */ 105 MX28_PAD_EMI_D00__EMI_DATA0 | MUX_CONFIG_EMI, 106 MX28_PAD_EMI_D01__EMI_DATA1 | MUX_CONFIG_EMI, 107 MX28_PAD_EMI_D02__EMI_DATA2 | MUX_CONFIG_EMI, 108 MX28_PAD_EMI_D03__EMI_DATA3 | MUX_CONFIG_EMI, 109 MX28_PAD_EMI_D04__EMI_DATA4 | MUX_CONFIG_EMI, 110 MX28_PAD_EMI_D05__EMI_DATA5 | MUX_CONFIG_EMI, 111 MX28_PAD_EMI_D06__EMI_DATA6 | MUX_CONFIG_EMI, 112 MX28_PAD_EMI_D07__EMI_DATA7 | MUX_CONFIG_EMI, 113 MX28_PAD_EMI_D08__EMI_DATA8 | MUX_CONFIG_EMI, 114 MX28_PAD_EMI_D09__EMI_DATA9 | MUX_CONFIG_EMI, 115 MX28_PAD_EMI_D10__EMI_DATA10 | MUX_CONFIG_EMI, 116 MX28_PAD_EMI_D11__EMI_DATA11 | MUX_CONFIG_EMI, 117 MX28_PAD_EMI_D12__EMI_DATA12 | MUX_CONFIG_EMI, 118 MX28_PAD_EMI_D13__EMI_DATA13 | MUX_CONFIG_EMI, 119 MX28_PAD_EMI_D14__EMI_DATA14 | MUX_CONFIG_EMI, 120 MX28_PAD_EMI_D15__EMI_DATA15 | MUX_CONFIG_EMI, 121 MX28_PAD_EMI_ODT0__EMI_ODT0 | MUX_CONFIG_EMI, 122 MX28_PAD_EMI_DQM0__EMI_DQM0 | MUX_CONFIG_EMI, 123 MX28_PAD_EMI_ODT1__EMI_ODT1 | MUX_CONFIG_EMI, 124 MX28_PAD_EMI_DQM1__EMI_DQM1 | MUX_CONFIG_EMI, 125 MX28_PAD_EMI_DDR_OPEN_FB__EMI_DDR_OPEN_FEEDBACK | MUX_CONFIG_EMI, 126 MX28_PAD_EMI_CLK__EMI_CLK | MUX_CONFIG_EMI, 127 MX28_PAD_EMI_DQS0__EMI_DQS0 | MUX_CONFIG_EMI, 128 MX28_PAD_EMI_DQS1__EMI_DQS1 | MUX_CONFIG_EMI, 129 MX28_PAD_EMI_DDR_OPEN__EMI_DDR_OPEN | MUX_CONFIG_EMI, 130 131 MX28_PAD_EMI_A00__EMI_ADDR0 | MUX_CONFIG_EMI, 132 MX28_PAD_EMI_A01__EMI_ADDR1 | MUX_CONFIG_EMI, 133 MX28_PAD_EMI_A02__EMI_ADDR2 | MUX_CONFIG_EMI, 134 MX28_PAD_EMI_A03__EMI_ADDR3 | MUX_CONFIG_EMI, 135 MX28_PAD_EMI_A04__EMI_ADDR4 | MUX_CONFIG_EMI, 136 MX28_PAD_EMI_A05__EMI_ADDR5 | MUX_CONFIG_EMI, 137 MX28_PAD_EMI_A06__EMI_ADDR6 | MUX_CONFIG_EMI, 138 MX28_PAD_EMI_A07__EMI_ADDR7 | MUX_CONFIG_EMI, 139 MX28_PAD_EMI_A08__EMI_ADDR8 | MUX_CONFIG_EMI, 140 MX28_PAD_EMI_A09__EMI_ADDR9 | MUX_CONFIG_EMI, 141 MX28_PAD_EMI_A10__EMI_ADDR10 | MUX_CONFIG_EMI, 142 MX28_PAD_EMI_A11__EMI_ADDR11 | MUX_CONFIG_EMI, 143 MX28_PAD_EMI_A12__EMI_ADDR12 | MUX_CONFIG_EMI, 144 MX28_PAD_EMI_A13__EMI_ADDR13 | MUX_CONFIG_EMI, 145 MX28_PAD_EMI_A14__EMI_ADDR14 | MUX_CONFIG_EMI, 146 MX28_PAD_EMI_BA0__EMI_BA0 | MUX_CONFIG_EMI, 147 MX28_PAD_EMI_BA1__EMI_BA1 | MUX_CONFIG_EMI, 148 MX28_PAD_EMI_BA2__EMI_BA2 | MUX_CONFIG_EMI, 149 MX28_PAD_EMI_CASN__EMI_CASN | MUX_CONFIG_EMI, 150 MX28_PAD_EMI_RASN__EMI_RASN | MUX_CONFIG_EMI, 151 MX28_PAD_EMI_WEN__EMI_WEN | MUX_CONFIG_EMI, 152 MX28_PAD_EMI_CE0N__EMI_CE0N | MUX_CONFIG_EMI, 153 MX28_PAD_EMI_CE1N__EMI_CE1N | MUX_CONFIG_EMI, 154 MX28_PAD_EMI_CKE__EMI_CKE | MUX_CONFIG_EMI, 155 156 /* SPI2 (for SPI flash) */ 157 MX28_PAD_SSP2_SCK__SSP2_SCK | MUX_CONFIG_SSP2, 158 MX28_PAD_SSP2_MOSI__SSP2_CMD | MUX_CONFIG_SSP2, 159 MX28_PAD_SSP2_MISO__SSP2_D0 | MUX_CONFIG_SSP2, 160 MX28_PAD_SSP2_SS0__SSP2_D3 | 161 (MXS_PAD_3V3 | MXS_PAD_8MA | MXS_PAD_PULLUP), 162 /* I2C */ 163 MX28_PAD_I2C0_SCL__I2C0_SCL, 164 MX28_PAD_I2C0_SDA__I2C0_SDA, 165 }; 166 167 #define HW_DRAM_CTL29 (0x74 >> 2) 168 #define CS_MAP 0xf 169 #define COLUMN_SIZE 0x2 170 #define ADDR_PINS 0x1 171 #define APREBIT 0xa 172 173 #define HW_DRAM_CTL29_CONFIG (CS_MAP << 24 | COLUMN_SIZE << 16 | \ 174 ADDR_PINS << 8 | APREBIT) 175 176 void mx28_adjust_memory_params(uint32_t *dram_vals) 177 { 178 dram_vals[HW_DRAM_CTL29] = HW_DRAM_CTL29_CONFIG; 179 } 180 181 void board_init_ll(void) 182 { 183 mxs_common_spl_init(iomux_setup, ARRAY_SIZE(iomux_setup)); 184 } 185