include/configs/mxs.h

   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 #define CONFIG_SPL_NO_CPU_SUPPORT_CODE
  48 #define CONFIG_SPL_START_S_PATH "arch/arm/cpu/arm926ejs/mxs"
  49
  50 /* Memory sizes */
  51 #define CONFIG_SYS_MALLOC_LEN           0x00400000      /* 4 MB for malloc */
  52 #define CONFIG_SYS_MEMTEST_START        0x40000000      /* Memtest start adr */
  53 #define CONFIG_SYS_MEMTEST_END          0x40400000      /* 4 MB RAM test */
  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 #define CONFIG_SPL_TEXT_BASE            0x00001000
  82
  83 /* U-Boot general configuration */
  84 #define CONFIG_SYS_CBSIZE       1024            /* Console I/O buffer size */
  85 #define CONFIG_SYS_MAXARGS      32              /* Max number of command args */
  86 #define CONFIG_SYS_BARGSIZE     CONFIG_SYS_CBSIZE
  87                                                 /* Boot argument buffer size */
  88
  89 /* Booting Linux */
  90 #define CONFIG_CMDLINE_TAG
  91 #define CONFIG_SETUP_MEMORY_TAGS
  92
  93 /*
  94  * Drivers
  95  */
  96
  97 /* APBH DMA */
  98
  99 /* GPIO */
 100 #define CONFIG_MXS_GPIO
 101
 102 /*
 103  * DUART Serial Driver.
 104  * Conflicts with AUART driver which can be set by board.
 105  */
 106 #define CONFIG_PL011_CLOCK              24000000
 107 #define CONFIG_PL01x_PORTS              { (void *)MXS_UARTDBG_BASE }
 108 #define CONFIG_CONS_INDEX               0
 109 /* Default baudrate can be overridden by board! */
 110
 111 /* FEC Ethernet on SoC */
 112 #ifdef CONFIG_FEC_MXC
 113 #define CONFIG_MII
 114 #ifndef CONFIG_ETHPRIME
 115 #define CONFIG_ETHPRIME                 "FEC0"
 116 #endif
 117 #ifndef CONFIG_FEC_XCV_TYPE
 118 #define CONFIG_FEC_XCV_TYPE             RMII
 119 #endif
 120 #endif
 121
 122 /* LCD */
 123 #ifdef CONFIG_VIDEO
 124 #define CONFIG_VIDEO_MXS
 125 #endif
 126
 127 /* MMC */
 128 #ifdef CONFIG_CMD_MMC
 129 #define CONFIG_BOUNCE_BUFFER
 130 #endif
 131
 132 /* NAND */
 133 #ifdef CONFIG_CMD_NAND
 134 #define CONFIG_SYS_MAX_NAND_DEVICE      1
 135 #define CONFIG_SYS_NAND_BASE            0x60000000
 136 #define CONFIG_SYS_NAND_5_ADDR_CYCLE
 137 #endif
 138
 139 /* OCOTP */
 140 #ifdef CONFIG_CMD_FUSE
 141 #define CONFIG_MXS_OCOTP
 142 #endif
 143
 144 /* SPI */
 145 #ifdef CONFIG_CMD_SPI
 146 #define CONFIG_HARD_SPI
 147 #define CONFIG_SPI_HALF_DUPLEX
 148 #endif
 149
 150 /* USB */
 151 #ifdef CONFIG_CMD_USB
 152 #define CONFIG_USB_EHCI_MXS
 153 #define CONFIG_EHCI_IS_TDI
 154 #endif
 155
 156 #endif  /* __CONFIGS_MXS_H__ */