1 /* 2 * Copyright (C) 2013 Marek Vasut <marex@denx.de> 3 * 4 * This program is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU General Public License as 6 * published by the Free Software Foundation; either version 2 of 7 * the License, or (at your option) any later version. 8 * 9 * This program is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 * GNU General Public License for more details. 13 * 14 * You should have received a copy of the GNU General Public License 15 * along with this program; if not, write to the Free Software 16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 17 * MA 02111-1307 USA 18 */ 19 #ifndef __CONFIGS_MXS_H__ 20 #define __CONFIGS_MXS_H__ 21 22 /* 23 * Includes 24 */ 25 26 #if defined(CONFIG_MX23) && defined(CONFIG_MX28) 27 #error Select either CONFIG_MX23 or CONFIG_MX28 , never both! 28 #elif !defined(CONFIG_MX23) && !defined(CONFIG_MX28) 29 #error Select one of CONFIG_MX23 or CONFIG_MX28 ! 30 #endif 31 32 #include <asm/arch/regs-base.h> 33 34 #if defined(CONFIG_MX23) 35 #include <asm/arch/iomux-mx23.h> 36 #elif defined(CONFIG_MX28) 37 #include <asm/arch/iomux-mx28.h> 38 #endif 39 40 /* 41 * CPU specifics 42 */ 43 44 /* Startup hooks */ 45 46 /* SPL */ 47 #ifndef CONFIG_SPL_FRAMEWORK 48 #define CONFIG_SPL_NO_CPU_SUPPORT 49 #define CONFIG_SPL_START_S_PATH "arch/arm/cpu/arm926ejs/mxs" 50 #endif 51 52 /* Memory sizes */ 53 #define CONFIG_SYS_MALLOC_LEN 0x00400000 /* 4 MB for malloc */ 54 55 /* OCRAM at 0x0 ; 32kB on MX23 ; 128kB on MX28 */ 56 #define CONFIG_SYS_INIT_RAM_ADDR 0x00000000 57 #if defined(CONFIG_MX23) 58 #define CONFIG_SYS_INIT_RAM_SIZE (32 * 1024) 59 #elif defined(CONFIG_MX28) 60 #define CONFIG_SYS_INIT_RAM_SIZE (128 * 1024) 61 #endif 62 63 /* Point initial SP in SRAM so SPL can use it too. */ 64 #define CONFIG_SYS_INIT_SP_OFFSET \ 65 (CONFIG_SYS_INIT_RAM_SIZE - GENERATED_GBL_DATA_SIZE) 66 #define CONFIG_SYS_INIT_SP_ADDR \ 67 (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_SP_OFFSET) 68 69 /* 70 * We need to sacrifice first 4 bytes of RAM here to avoid triggering some 71 * strange BUG in ROM corrupting first 4 bytes of RAM when loading U-Boot 72 * binary. In case there was more of this mess, 0x100 bytes are skipped. 73 * 74 * In case of a HAB boot, we cannot for some weird reason use the first 4KiB 75 * of DRAM when loading. Moreover, we use the first 4 KiB for IVT and CST 76 * blocks, thus U-Boot starts at offset +8 KiB of DRAM start. 77 * 78 * As for the SPL, we must avoid the first 4 KiB as well, but we load the 79 * IVT and CST to 0x8000, so we don't need to waste the subsequent 4 KiB. 80 */ 81 82 /* U-Boot general configuration */ 83 #define CONFIG_SYS_CBSIZE 1024 /* Console I/O buffer size */ 84 #define CONFIG_SYS_MAXARGS 32 /* Max number of command args */ 85 #define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE 86 /* Boot argument buffer size */ 87 88 /* Booting Linux */ 89 #define CONFIG_CMDLINE_TAG 90 #define CONFIG_SETUP_MEMORY_TAGS 91 92 /* 93 * Drivers 94 */ 95 /* 96 * DUART Serial Driver. 97 * Conflicts with AUART driver which can be set by board. 98 */ 99 #define CONFIG_PL011_CLOCK 24000000 100 #define CONFIG_PL01x_PORTS { (void *)MXS_UARTDBG_BASE } 101 /* Default baudrate can be overridden by board! */ 102 103 /* FEC Ethernet on SoC */ 104 #ifdef CONFIG_FEC_MXC 105 #ifndef CONFIG_ETHPRIME 106 #define CONFIG_ETHPRIME "FEC0" 107 #endif 108 #ifndef CONFIG_FEC_XCV_TYPE 109 #define CONFIG_FEC_XCV_TYPE RMII 110 #endif 111 #endif 112 113 /* LCD */ 114 #ifdef CONFIG_VIDEO 115 #define CONFIG_VIDEO_MXS 116 #endif 117 118 /* NAND */ 119 #ifdef CONFIG_CMD_NAND 120 #define CONFIG_SYS_MAX_NAND_DEVICE 1 121 #define CONFIG_SYS_NAND_BASE 0x60000000 122 #define CONFIG_SYS_NAND_5_ADDR_CYCLE 123 #endif 124 125 /* OCOTP */ 126 #ifdef CONFIG_CMD_FUSE 127 #define CONFIG_MXS_OCOTP 128 #endif 129 130 /* SPI */ 131 #ifdef CONFIG_CMD_SPI 132 #define CONFIG_SPI_HALF_DUPLEX 133 #endif 134 135 /* USB */ 136 #ifdef CONFIG_CMD_USB 137 #define CONFIG_USB_EHCI_MXS 138 #define CONFIG_EHCI_IS_TDI 139 #endif 140 141 #endif /* __CONFIGS_MXS_H__ */ 142