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 #define CONFIG_SYS_MEMTEST_START 0x40000000 /* Memtest start adr */ 55 #define CONFIG_SYS_MEMTEST_END 0x40400000 /* 4 MB RAM test */ 56 57 /* OCRAM at 0x0 ; 32kB on MX23 ; 128kB on MX28 */ 58 #define CONFIG_SYS_INIT_RAM_ADDR 0x00000000 59 #if defined(CONFIG_MX23) 60 #define CONFIG_SYS_INIT_RAM_SIZE (32 * 1024) 61 #elif defined(CONFIG_MX28) 62 #define CONFIG_SYS_INIT_RAM_SIZE (128 * 1024) 63 #endif 64 65 /* Point initial SP in SRAM so SPL can use it too. */ 66 #define CONFIG_SYS_INIT_SP_OFFSET \ 67 (CONFIG_SYS_INIT_RAM_SIZE - GENERATED_GBL_DATA_SIZE) 68 #define CONFIG_SYS_INIT_SP_ADDR \ 69 (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_SP_OFFSET) 70 71 /* 72 * We need to sacrifice first 4 bytes of RAM here to avoid triggering some 73 * strange BUG in ROM corrupting first 4 bytes of RAM when loading U-Boot 74 * binary. In case there was more of this mess, 0x100 bytes are skipped. 75 * 76 * In case of a HAB boot, we cannot for some weird reason use the first 4KiB 77 * of DRAM when loading. Moreover, we use the first 4 KiB for IVT and CST 78 * blocks, thus U-Boot starts at offset +8 KiB of DRAM start. 79 * 80 * As for the SPL, we must avoid the first 4 KiB as well, but we load the 81 * IVT and CST to 0x8000, so we don't need to waste the subsequent 4 KiB. 82 */ 83 84 /* U-Boot general configuration */ 85 #define CONFIG_SYS_CBSIZE 1024 /* Console I/O buffer size */ 86 #define CONFIG_SYS_MAXARGS 32 /* Max number of command args */ 87 #define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE 88 /* Boot argument buffer size */ 89 90 /* Booting Linux */ 91 #define CONFIG_CMDLINE_TAG 92 #define CONFIG_SETUP_MEMORY_TAGS 93 94 /* 95 * Drivers 96 */ 97 /* 98 * DUART Serial Driver. 99 * Conflicts with AUART driver which can be set by board. 100 */ 101 #define CONFIG_PL011_CLOCK 24000000 102 #define CONFIG_PL01x_PORTS { (void *)MXS_UARTDBG_BASE } 103 /* Default baudrate can be overridden by board! */ 104 105 /* FEC Ethernet on SoC */ 106 #ifdef CONFIG_FEC_MXC 107 #ifndef CONFIG_ETHPRIME 108 #define CONFIG_ETHPRIME "FEC0" 109 #endif 110 #ifndef CONFIG_FEC_XCV_TYPE 111 #define CONFIG_FEC_XCV_TYPE RMII 112 #endif 113 #endif 114 115 /* LCD */ 116 #ifdef CONFIG_VIDEO 117 #define CONFIG_VIDEO_MXS 118 #endif 119 120 /* NAND */ 121 #ifdef CONFIG_CMD_NAND 122 #define CONFIG_SYS_MAX_NAND_DEVICE 1 123 #define CONFIG_SYS_NAND_BASE 0x60000000 124 #define CONFIG_SYS_NAND_5_ADDR_CYCLE 125 #endif 126 127 /* OCOTP */ 128 #ifdef CONFIG_CMD_FUSE 129 #define CONFIG_MXS_OCOTP 130 #endif 131 132 /* SPI */ 133 #ifdef CONFIG_CMD_SPI 134 #define CONFIG_SPI_HALF_DUPLEX 135 #endif 136 137 /* USB */ 138 #ifdef CONFIG_CMD_USB 139 #define CONFIG_USB_EHCI_MXS 140 #define CONFIG_EHCI_IS_TDI 141 #endif 142 143 #endif /* __CONFIGS_MXS_H__ */ 144