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同样一个INC文件，在ddr_stress_tester_v2.10里面是可以调节通过的，而在DDR_Stress_Tester_V1.0.2不能通过。imx6q+MT41K256M16HA-125IT 64bit 2GB，但在ddr_stress_tester_v2.10里配置为64bit +2GB不能dqs gating不能通过，而32bit + 1GB可能DQS gating能通过，但通过计算出来的dqs参数在ddr_stress_tester_v2.10里进行压力测试在做到memcpy8 ssn时会出错，每次出错都是bit2的值不对，输出信息如下：
DDR Stress Test Iteration 1
DDR Freq: 528 MHz
t0.1: data is addr test
t0: memcpy11 SSN test
t1: memcpy8 SSN test
Address of test2 failure: 0x3002eb34
Data was: 0xffffffbb
But pattern was: 0xffffffbf
Error: failed to run stress test!!!
DDR Stress Test Iteration 1
DDR Freq: 528 MHz
t0.1: data is addr test
t0: memcpy11 SSN test
t1: memcpy8 SSN test
Address of test2 failure: 0x3002ec0c
Data was: 0xfffffff9
But pattern was: 0xfffffffd
Error: failed to run stress test!!!
DDR Stress Test Iteration 1
DDR Freq: 528 MHz
t0.1: data is addr test
t0: memcpy11 SSN test
t1: memcpy8 SSN test
Address of test2 failure: 0x3002b08c
Data was: 0xfffdfffb
But pattern was: 0xfffdffff
Error: failed to run stress test!!!
DDR Stress Test Iteration 1
DDR Freq: 528 MHz
t0.1: data is addr test
t0: memcpy11 SSN test
t1: memcpy8 SSN test
Address of test2 failure: 0x3001d38c
Data was: 0xfffdfffb
But pattern was: 0xfffdffff
Error: failed to run stress test!!!
而该inc文件在DDR_Stress_Tester_V1.0.2下无论是528还是400都不能通过DQS GATING计算，这是什么原因呢？
inc文件如下：
//=============================================================================
//init script for i.Mx6Q DDR3
//=============================================================================
// Revision History
// v01
//=============================================================================
wait = on
//=============================================================================
// Disable WDOG
//=============================================================================
//setmem /16 0x020bc000 = 0x30
//=============================================================================
// Enable all clocks (they are disabled by ROM code)
//=============================================================================
setmem /32 0x020c4068 = 0xffffffff
setmem /32 0x020c406c = 0xffffffff
setmem /32 0x020c4070 = 0xffffffff
setmem /32 0x020c4074 = 0xffffffff
setmem /32 0x020c4078 = 0xffffffff
setmem /32 0x020c407c = 0xffffffff
setmem /32 0x020c4080 = 0xffffffff
setmem /32 0x020c4084 = 0xffffffff
//=============================================================================
// IOMUX
//=============================================================================
//DDR IO TYPE:
setmem /32 0x020e0798 = 0x000C0000 // IOMUXC_SW_PAD_CTL_GRP_DDR_TYPE
setmem /32 0x020e0758 = 0x00000000 // IOMUXC_SW_PAD_CTL_GRP_DDRPKE
//CLOCK:
setmem /32 0x020e0588 = 0x00000030 // IOMUXC_SW_PAD_CTL_PAD_DRAM_SDCLK_0
setmem /32 0x020e0594 = 0x00000030 // IOMUXC_SW_PAD_CTL_PAD_DRAM_SDCLK_1
//ADDRESS:
setmem /32 0x020e056c = 0x00000030 // IOMUXC_SW_PAD_CTL_PAD_DRAM_CAS
setmem /32 0x020e0578 = 0x00000030 // IOMUXC_SW_PAD_CTL_PAD_DRAM_RAS
setmem /32 0x020e074c = 0x00000030 // IOMUXC_SW_PAD_CTL_GRP_ADDDS
//Control:
setmem /32 0x020e057c = 0x00000030 // IOMUXC_SW_PAD_CTL_PAD_DRAM_RESET
setmem /32 0x020e058c = 0x00000000 // IOMUXC_SW_PAD_CTL_PAD_DRAM_SDBA2 - DSE can be configured using Group Control Register: IOMUXC_SW_PAD_CTL_GRP_CTLDS
setmem /32 0x020e059c = 0x00000030 // IOMUXC_SW_PAD_CTL_PAD_DRAM_SDODT0
setmem /32 0x020e05a0 = 0x00000030 // IOMUXC_SW_PAD_CTL_PAD_DRAM_SDODT1
setmem /32 0x020e078c = 0x00000030 // IOMUXC_SW_PAD_CTL_GRP_CTLDS
//Data Strobes:
setmem /32 0x020e0750 = 0x00020000 // IOMUXC_SW_PAD_CTL_GRP_DDRMODE_CTL
setmem /32 0x020e05a8 = 0x00000028 // IOMUXC_SW_PAD_CTL_PAD_DRAM_SDQS0
setmem /32 0x020e05b0 = 0x00000028 // IOMUXC_SW_PAD_CTL_PAD_DRAM_SDQS1
setmem /32 0x020e0524 = 0x00000028 // IOMUXC_SW_PAD_CTL_PAD_DRAM_SDQS2
setmem /32 0x020e051c = 0x00000028 // IOMUXC_SW_PAD_CTL_PAD_DRAM_SDQS3
//setmem /32 0x020e0518 = 0x00000010 // IOMUXC_SW_PAD_CTL_PAD_DRAM_SDQS4
//setmem /32 0x020e050c = 0x00000010 // IOMUXC_SW_PAD_CTL_PAD_DRAM_SDQS5
//setmem /32 0x020e05b8 = 0x00000010 // IOMUXC_SW_PAD_CTL_PAD_DRAM_SDQS6
//setmem /32 0x020e05c0 = 0x00000010 // IOMUXC_SW_PAD_CTL_PAD_DRAM_SDQS7
//Data:
setmem /32 0x020e0774 = 0x00020000 // IOMUXC_SW_PAD_CTL_GRP_DDRMODE
setmem /32 0x020e0784 = 0x00000028 // IOMUXC_SW_PAD_CTL_GRP_B0DS
setmem /32 0x020e0788 = 0x00000028 // IOMUXC_SW_PAD_CTL_GRP_B1DS
setmem /32 0x020e0794 = 0x00000028 // IOMUXC_SW_PAD_CTL_GRP_B2DS
setmem /32 0x020e079c = 0x00000028 // IOMUXC_SW_PAD_CTL_GRP_B3DS
//setmem /32 0x020e07a0 = 0x00000028 // IOMUXC_SW_PAD_CTL_GRP_B4DS
//setmem /32 0x020e07a4 = 0x00000028 // IOMUXC_SW_PAD_CTL_GRP_B5DS
//setmem /32 0x020e07a8 = 0x00000028 // IOMUXC_SW_PAD_CTL_GRP_B6DS
//setmem /32 0x020e0748 = 0x00000028 // IOMUXC_SW_PAD_CTL_GRP_B7DS
setmem /32 0x020e05ac = 0x00000028 // IOMUXC_SW_PAD_CTL_PAD_DRAM_DQM0
setmem /32 0x020e05b4 = 0x00000028 // IOMUXC_SW_PAD_CTL_PAD_DRAM_DQM1
setmem /32 0x020e0528 = 0x00000028 // IOMUXC_SW_PAD_CTL_PAD_DRAM_DQM2
setmem /32 0x020e0520 = 0x00000028 // IOMUXC_SW_PAD_CTL_PAD_DRAM_DQM3
//setmem /32 0x020e0514 = 0x00000028 // IOMUXC_SW_PAD_CTL_PAD_DRAM_DQM4
//setmem /32 0x020e0510 = 0x00000028 // IOMUXC_SW_PAD_CTL_PAD_DRAM_DQM5
//setmem /32 0x020e05bc = 0x00000028 // IOMUXC_SW_PAD_CTL_PAD_DRAM_DQM6
//setmem /32 0x020e05c4 = 0x00000028 // IOMUXC_SW_PAD_CTL_PAD_DRAM_DQM7
//=============================================================================
// DDR Controller Registers
//=============================================================================
// Manufacturer: Micron
// Device Part Number: MT41K256M16-125E
// Clock Freq.: 528MHz
// Density per CS in Gb: 8
// Chip Selects used: 1
// Number of Banks: 8
// Row address: 15
// Column address: 10
// Data bus width 32
//=============================================================================
//setmem /32 0x021b001c = 0x00008000 MMDC0_MDSCR, set the Configuration request bit during MMDC set up
//=============================================================================
// Calibration setup.
//=============================================================================
setmem /32 0x021b0800 = 0xA1390003 // DDR_PHY_P0_MPZQHWCTRL, enable both one-time & periodic HW ZQ calibration.
// For target board, may need to run write leveling calibration to fine tune these settings.
setmem /32 0x021b080c = 0x0038001F
setmem /32 0x021b0810 = 0x001F001F
//setmem /32 0x021b480c = 0x00000000
//setmem /32 0x021b4810 = 0x00000000
////Read DQS Gating calibration
setmem /32 0x021b083c = 0x43770365 // MPDGCTRL0 PHY0
setmem /32 0x021b0840 = 0x03670367 // MPDGCTRL1 PHY0
//setmem /32 0x021b483c = 0x00000000 // MPDGCTRL0 PHY1
//setmem /32 0x021b4840 = 0x00000000 // MPDGCTRL1 PHY1
//Read calibration
setmem /32 0x021b0848 = 0x42423C40 // MPRDDLCTL PHY0
//setmem /32 0x021b4848 = 0x40404040 // MPRDDLCTL PHY1
//Write calibration
setmem /32 0x021b0850 = 0x2414263E // MPWRDLCTL PHY0
//setmem /32 0x021b4850 = 0x40404040 // MPWRDLCTL PHY1
//read data bit delay: (3 is the reccommended default value, although out of reset value is 0)
setmem /32 0x021b081c = 0x33333333 // DDR_PHY_P0_MPREDQBY0DL3
setmem /32 0x021b0820 = 0x33333333 // DDR_PHY_P0_MPREDQBY1DL3
setmem /32 0x021b0824 = 0x33333333 // DDR_PHY_P0_MPREDQBY2DL3
setmem /32 0x021b0828 = 0x33333333 // DDR_PHY_P0_MPREDQBY3DL3
//setmem /32 0x021b481c = 0x33333333 // DDR_PHY_P1_MPREDQBY0DL3
//setmem /32 0x021b4820 = 0x33333333 // DDR_PHY_P1_MPREDQBY1DL3
//setmem /32 0x021b4824 = 0x33333333 // DDR_PHY_P1_MPREDQBY2DL3
//setmem /32 0x021b4828 = 0x33333333 // DDR_PHY_P1_MPREDQBY3DL3
//For i.mx6qd parts of versions A & B (v1.0, v1.1), uncomment the following lines. For version C (v1.2), keep commented
//setmem /32 0x021b08c0 = 0x24911492 // fine tune SDCLK duty cyc to low - seen to improve measured duty cycle of i.mx6
//setmem /32 0x021b48c0 = 0x24911492
// Complete calibration by forced measurement:
setmem /32 0x021b08b8 = 0x00000800 // DDR_PHY_P0_MPMUR0, frc_msr
//setmem /32 0x021b48b8 = 0x00000800 // DDR_PHY_P0_MPMUR0, frc_msr
//=============================================================================
// Calibration setup end
//=============================================================================
//MMDC init:
setmem /32 0x021b0004 = 0x00020036 // MMDC0_MDPDC
setmem /32 0x021b0008 = 0x09444040 // MMDC0_MDOTC
setmem /32 0x021b000c = 0x8A8F7955 //0x898E79A4 MMDC0_MDCFG0
setmem /32 0x021b0010 = 0xFF328F64 //0xDB538F64 MMDC0_MDCFG1
setmem /32 0x021b0014 = 0x01FF00DD // MMDC0_MDCFG2
//MDMISC: RALAT kept to the high level of 5.
//MDMISC: consider reducing RALAT if your 528MHz board design allow that. Lower RALAT benefits:
//a. better operation at low frequency, for LPDDR2 freq < 100MHz, change RALAT to 3
//b. Small performence improvment
setmem /32 0x021b0018 = 0x00011740 // MMDC0_MDMISC
setmem /32 0x021b001c = 0x00008000 // MMDC0_MDSCR, set the Configuration request bit during MMDC set up
setmem /32 0x021b002c = 0x000026D2 // MMDC0_MDRWD
setmem /32 0x021b0030 = 0x008F1023 // MMDC0_MDOR
setmem /32 0x021b0040 = 0x00000027 // Chan0 CS0_END
setmem /32 0x021b0000 = 0x84190000 // MMDC0_MDCTL
//Mode register writes
setmem /32 0x021b001c = 0x04088032 // MMDC0_MDSCR, MR2 write, CS0
setmem /32 0x021b001c = 0x00008033 // MMDC0_MDSCR, MR3 write, CS0
setmem /32 0x021b001c = 0x00048031 // MMDC0_MDSCR, MR1 write, CS0
setmem /32 0x021b001c = 0x09408030 // MMDC0_MDSCR, MR0write, CS0
setmem /32 0x021b001c = 0x04008040 // MMDC0_MDSCR, ZQ calibration command sent to device on CS0
//setmem /32 0x021b001c = 0x0208803A // MMDC0_MDSCR, MR2 write, CS1
//setmem /32 0x021b001c = 0x0000803B // MMDC0_MDSCR, MR3 write, CS1
//setmem /32 0x021b001c = 0x00048039 // MMDC0_MDSCR, MR1 write, CS1
//setmem /32 0x021b001c = 0x19308038 // MMDC0_MDSCR, MR0write, CS1
//setmem /32 0x021b001c = 0x04008048 // MMDC0_MDSCR, ZQ calibration command sent to device on CS1
setmem /32 0x021b0020 = 0x00005800 // MMDC0_MDREF
setmem /32 0x021b0818 = 0x00011117 // DDR_PHY_P0_MPODTCTRL
//setmem /32 0x021b4818 = 0x00022227 // DDR_PHY_P1_MPODTCTRL
setmem /32 0x021b0004 = 0x00025576 // MMDC0_MDPDC now SDCTL power down enabled
setmem /32 0x021b0404 = 0x00011006 // MMDC0_MAPSR ADOPT power down enabled, MMDC will enter automatically to self-refresh while the number of idle cycle reached.
setmem /32 0x021b001c = 0x00000000 // MMDC0_MDSCR, clear this register (especially the configuration bit as initialization is complete)
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发表于 2015-9-22 01:33:03
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