imx6q我挂载了4g内存为什么我只能操作2g的？
本帖最后由 wshini7316 于 2014-11-19 10:49 编辑/* DCD */
MXC_DCD_ITEM(1, IOMUXC_BASE_ADDR + 0x5a8, 0x00000030)
MXC_DCD_ITEM(2, IOMUXC_BASE_ADDR + 0x5b0, 0x00000030)
MXC_DCD_ITEM(3, IOMUXC_BASE_ADDR + 0x524, 0x00000030)
MXC_DCD_ITEM(4, IOMUXC_BASE_ADDR + 0x51c, 0x00000030)
MXC_DCD_ITEM(5, IOMUXC_BASE_ADDR + 0x518, 0x00000030)
MXC_DCD_ITEM(6, IOMUXC_BASE_ADDR + 0x50c, 0x00000030)
MXC_DCD_ITEM(7, IOMUXC_BASE_ADDR + 0x5b8, 0x00000030)
MXC_DCD_ITEM(8, IOMUXC_BASE_ADDR + 0x5c0, 0x00000030)
MXC_DCD_ITEM(9, IOMUXC_BASE_ADDR + 0x5ac, 0x00020030)
MXC_DCD_ITEM(10, IOMUXC_BASE_ADDR + 0x5b4, 0x00020030)
MXC_DCD_ITEM(11, IOMUXC_BASE_ADDR + 0x528, 0x00020030)
MXC_DCD_ITEM(12, IOMUXC_BASE_ADDR + 0x520, 0x00020030)
MXC_DCD_ITEM(13, IOMUXC_BASE_ADDR + 0x514, 0x00020030)
MXC_DCD_ITEM(14, IOMUXC_BASE_ADDR + 0x510, 0x00020030)
MXC_DCD_ITEM(15, IOMUXC_BASE_ADDR + 0x5bc, 0x00020030)
MXC_DCD_ITEM(16, IOMUXC_BASE_ADDR + 0x5c4, 0x00020030)
MXC_DCD_ITEM(17, IOMUXC_BASE_ADDR + 0x56c, 0x00020030)
MXC_DCD_ITEM(18, IOMUXC_BASE_ADDR + 0x578, 0x00020030)
MXC_DCD_ITEM(19, IOMUXC_BASE_ADDR + 0x588, 0x00020030)
MXC_DCD_ITEM(20, IOMUXC_BASE_ADDR + 0x594, 0x00020030)
MXC_DCD_ITEM(21, IOMUXC_BASE_ADDR + 0x57c, 0x00020030)
MXC_DCD_ITEM(22, IOMUXC_BASE_ADDR + 0x590, 0x00003000)
MXC_DCD_ITEM(23, IOMUXC_BASE_ADDR + 0x598, 0x00003000)
MXC_DCD_ITEM(24, IOMUXC_BASE_ADDR + 0x58c, 0x00000000)
MXC_DCD_ITEM(25, IOMUXC_BASE_ADDR + 0x59c, 0x00003030)
MXC_DCD_ITEM(26, IOMUXC_BASE_ADDR + 0x5a0, 0x00003030)
MXC_DCD_ITEM(27, IOMUXC_BASE_ADDR + 0x784, 0x00000030)
MXC_DCD_ITEM(28, IOMUXC_BASE_ADDR + 0x788, 0x00000030)
MXC_DCD_ITEM(29, IOMUXC_BASE_ADDR + 0x794, 0x00000030)
MXC_DCD_ITEM(30, IOMUXC_BASE_ADDR + 0x79c, 0x00000030)
MXC_DCD_ITEM(31, IOMUXC_BASE_ADDR + 0x7a0, 0x00000030)
MXC_DCD_ITEM(32, IOMUXC_BASE_ADDR + 0x7a4, 0x00000030)
MXC_DCD_ITEM(33, IOMUXC_BASE_ADDR + 0x7a8, 0x00000030)
MXC_DCD_ITEM(34, IOMUXC_BASE_ADDR + 0x748, 0x00000030)
MXC_DCD_ITEM(35, IOMUXC_BASE_ADDR + 0x74c, 0x00000030)
MXC_DCD_ITEM(36, IOMUXC_BASE_ADDR + 0x750, 0x00020000)
MXC_DCD_ITEM(37, IOMUXC_BASE_ADDR + 0x758, 0x00000000)
MXC_DCD_ITEM(38, IOMUXC_BASE_ADDR + 0x774, 0x00020000)
MXC_DCD_ITEM(39, IOMUXC_BASE_ADDR + 0x78c, 0x00000030)
MXC_DCD_ITEM(40, IOMUXC_BASE_ADDR + 0x798, 0x000C0000)
MXC_DCD_ITEM(41, MMDC_P0_BASE_ADDR + 0x81c, 0x33333333)
MXC_DCD_ITEM(42, MMDC_P0_BASE_ADDR + 0x820, 0x33333333)
MXC_DCD_ITEM(43, MMDC_P0_BASE_ADDR + 0x824, 0x33333333)
MXC_DCD_ITEM(44, MMDC_P0_BASE_ADDR + 0x828, 0x33333333)
MXC_DCD_ITEM(45, MMDC_P1_BASE_ADDR + 0x81c, 0x33333333)
MXC_DCD_ITEM(46, MMDC_P1_BASE_ADDR + 0x820, 0x33333333)
MXC_DCD_ITEM(47, MMDC_P1_BASE_ADDR + 0x824, 0x33333333)
MXC_DCD_ITEM(48, MMDC_P1_BASE_ADDR + 0x828, 0x33333333)
MXC_DCD_ITEM(49, MMDC_P0_BASE_ADDR + 0x018, 0x00081740)
MXC_DCD_ITEM(50, MMDC_P0_BASE_ADDR + 0x01c, 0x00008000)
//MMDC_MDCFG0:t_RFC/t_XS/t_XP/t_XPDLL/tFAW/t_CL
MXC_DCD_ITEM(51, MMDC_P0_BASE_ADDR + 0x00c, 0x555A7975)
//MMDC_MDCFG1:t_RCD/t_RP/t_RC/t_RAS/t_RPA/t_WR/t_MRD/t_CWL
MXC_DCD_ITEM(52, MMDC_P0_BASE_ADDR + 0x010, 0xFF538E64)
//MMDC_MDCFG2:t_DLLK/t_RTP/t_WTR/t_RRD
MXC_DCD_ITEM(53, MMDC_P0_BASE_ADDR + 0x014, 0x01FF00DB)
//MMDC_MDRWD:
MXC_DCD_ITEM(54, MMDC_P0_BASE_ADDR + 0x02c, 0x000026D2)
//MMDC_MDOR:
MXC_DCD_ITEM(55, MMDC_P0_BASE_ADDR + 0x030, 0x005B0E21)
//MMDC_MDOTC:
MXC_DCD_ITEM(56, MMDC_P0_BASE_ADDR + 0x008, 0x09444040)
//MMDC_MDPDC:
MXC_DCD_ITEM(57, MMDC_P0_BASE_ADDR + 0x004, 0x00025576)
//MMDC_MDASP:
MXC_DCD_ITEM(58, MMDC_P0_BASE_ADDR + 0x040, 0x00000047)这个我要是配置成0x0000007f就可以访问4g空间，可是硬件上我是接了csd0和csd1的啊
//MMDC_MDCTL:SDE_0/SDE_1/ROW/COL/DSIZ
MXC_DCD_ITEM(59, MMDC_P0_BASE_ADDR + 0x000, 0xC51A0000)//0xC31A0000
MXC_DCD_ITEM(60, MMDC_P0_BASE_ADDR + 0x01c, 0x04088032)
MXC_DCD_ITEM(61, MMDC_P0_BASE_ADDR + 0x01c, 0x0408803A)
MXC_DCD_ITEM(62, MMDC_P0_BASE_ADDR + 0x01c, 0x00008033)
MXC_DCD_ITEM(63, MMDC_P0_BASE_ADDR + 0x01c, 0x0000803B)
MXC_DCD_ITEM(64, MMDC_P0_BASE_ADDR + 0x01c, 0x00428031)
MXC_DCD_ITEM(65, MMDC_P0_BASE_ADDR + 0x01c, 0x00428039)
MXC_DCD_ITEM(66, MMDC_P0_BASE_ADDR + 0x01c, 0x09408030)
MXC_DCD_ITEM(67, MMDC_P0_BASE_ADDR + 0x01c, 0x09408038)
MXC_DCD_ITEM(68, MMDC_P0_BASE_ADDR + 0x01c, 0x04008040)
MXC_DCD_ITEM(69, MMDC_P0_BASE_ADDR + 0x01c, 0x04008048)
MXC_DCD_ITEM(70, MMDC_P0_BASE_ADDR + 0x800, 0xA1380003)
MXC_DCD_ITEM(71, MMDC_P1_BASE_ADDR + 0x800, 0xA1380003)
MXC_DCD_ITEM(72, MMDC_P0_BASE_ADDR + 0x020, 0x00005800)
MXC_DCD_ITEM(73, MMDC_P0_BASE_ADDR + 0x818, 0x00000007)
MXC_DCD_ITEM(74, MMDC_P1_BASE_ADDR + 0x818, 0x00000007)
MXC_DCD_ITEM(75, MMDC_P0_BASE_ADDR + 0x83c, 0x434B0350)
MXC_DCD_ITEM(76, MMDC_P0_BASE_ADDR + 0x840, 0x034C0359)
MXC_DCD_ITEM(77, MMDC_P1_BASE_ADDR + 0x83c, 0x434B0350)
MXC_DCD_ITEM(78, MMDC_P1_BASE_ADDR + 0x840, 0x03650348)
MXC_DCD_ITEM(79, MMDC_P0_BASE_ADDR + 0x848, 0x4436383B)
MXC_DCD_ITEM(80, MMDC_P1_BASE_ADDR + 0x848, 0x39393341)
MXC_DCD_ITEM(81, MMDC_P0_BASE_ADDR + 0x850, 0x35373933)
MXC_DCD_ITEM(82, MMDC_P1_BASE_ADDR + 0x850, 0x48254A36)
MXC_DCD_ITEM(83, MMDC_P0_BASE_ADDR + 0x80c, 0x001F001F)
MXC_DCD_ITEM(84, MMDC_P0_BASE_ADDR + 0x810, 0x001F001F)
MXC_DCD_ITEM(85, MMDC_P1_BASE_ADDR + 0x80c, 0x00440044)
MXC_DCD_ITEM(86, MMDC_P1_BASE_ADDR + 0x810, 0x00440044)
MXC_DCD_ITEM(87, MMDC_P0_BASE_ADDR + 0x8b8, 0x00000800)
MXC_DCD_ITEM(88, MMDC_P1_BASE_ADDR + 0x8b8, 0x00000800)
MXC_DCD_ITEM(89, MMDC_P0_BASE_ADDR + 0x01c, 0x00000000)
MXC_DCD_ITEM(90, MMDC_P0_BASE_ADDR + 0x404, 0x00011006)
以上是dcd配置，帮我看看有什么问题？
这个配置看着没什么错误，建议问飞思卡尔的技术支持 是不是操作了sd卡内部寄存器啊，改变最大访问空间 这个是32位芯片，地址空间最大4GB，有一些地址空间被系统寄存器用了，还有些保留。我记得手册上写了最大支持2GB内存。 请问一下楼主用imx6做的是哪个行业的项目？
发现现在好像蛮多人用imx6
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