大家好，我使用的是uboot v2015.04，现在换了hannstar 1024x600的TFT屏，改了屏参无显示内容，画面黑屏
屏接的是24bit LVDS1输出，下面是uboot启动日志：
U-Boot 2015.04-14469-g9433975-dirty (Sep 21 2016 - 14:28:55)
initcall: 17806720
U-Boot code: 17800000 -> 1786B3DC BSS: -> 178B9738
initcall: 178019dc
CPU: Freescale i.MX6Q rev1.5 at 792 MHz
uclass_find_device_by_seq: 0 -1
uclass_find_device_by_seq: 0 0
- -1 -1
- not found
CPU: Temperature 50 C
Reset cause: POR
initcall: 17806be0
Board: MX6-SabreSD
initcall: 17806764
I2C: ready
initcall: 1780674c
DRAM: initcall: 1780343c
initcall: 1780693c
Monitor len: 000B9738
Ram size: 40000000
Ram top: 50000000
initcall: 178064dc
initcall: 178066c8
TLB table from 4fff0000 to 4fff4000
initcall: 178064f4
initcall: 1780667c
Reserving 741k for U-Boot at: 4ff36000
initcall: 1780664c
Reserving 16392k for malloc() at: 4ef34000
initcall: 1780681c
Reserving 80 Bytes for Board Info at: 4ef33fb0
initcall: 178064fc
initcall: 17806618
Reserving 248 Bytes for Global Data at: 4ef33eb8
initcall: 178065b4
initcall: 17806510
initcall: 178069a8
initcall: 17806918
initcall: 17806874
RAM Configuration:
Bank #0: 10000000 1 GiB
DRAM: 1 GiB
initcall: 17806598
New Stack Pointer is: 4ef33e90
initcall: 17806518
initcall: 17806548
Relocation Offset is: 38736000
Relocating to 4ff36000, new gd at 4ef33eb8, sp at 4ef33e90
initcall: 4ff3c9f4
initcall: 4ff3cb94
initcall: 17806b84 (relocated to 4ff3cb84)
dram_bank_mmu_setup: bank: 0
mmu_set_region_dcache_behaviour: start=0x00000000, size=1048575, option=30
mmu_set_region_dcache_behaviour: start=0x00000009, size=262144, option=30
initcall: 178069fc (relocated to 4ff3c9fc)
initcall: 17806a24 (relocated to 4ff3ca24)
initcall: 17806b48 (relocated to 4ff3cb48)
Pre-reloc malloc() used 0xd4 bytes (0 KB)
using memory 0x4ef34000-0x4ff36000 for malloc()
initcall: 178069ec (relocated to 4ff3c9ec)
initcall: 17806b34 (relocated to 4ff3cb34)
uclass_find_device_by_seq: 0 -1
uclass_find_device_by_seq: 0 0
- -1 -1
- not found
Bound device imx_thermal to root_driver
initcall: 178038f0 (relocated to 4ff398f0)
initcall: 17819de8 (relocated to 4ff4fde8)
initcall: 17806b24 (relocated to 4ff3cb24)
initcall: 17806b08 (relocated to 4ff3cb08)
Now running in RAM - U-Boot at: 4ff36000
initcall: 1780395c (relocated to 4ff3995c)
pmic_alloc: new pmic struct: 0x4ef340f8
pmic_get: pmic PFUZE100 -> 0x4ef340f8
Bus: 1 PMIC:PFUZE100 probed!
PMIC: PFUZE100 ID=0x10
initcall: 17806ae8 (relocated to 4ff3cae8)
MMC: FSL_SDHC: 0, FSL_SDHC: 1, FSL_SDHC: 2
initcall: 17806ab8 (relocated to 4ff3cab8)
mmc_init: 0, time 264
*** Warning - bad CRC, using default environment
Destroy Hash Table: 4ff9383c table = 00000000
Create Hash Table: N=79
INSERT: table 4ff9383c, filled 1/79 rv 4ef34780 ==> name="bootdelay" value="1"
INSERT: table 4ff9383c, filled 2/79 rv 4ef34640 ==> name="baudrate" value="115200"
INSERT: table 4ff9383c, filled 3/79 rv 4ef346cc ==> name="ethprime" value="FEC"
INSERT: table 4ff9383c, filled 4/79 rv 4ef34730 ==> name="loadaddr" value="0x12000000"
INSERT: table 4ff9383c, filled 5/79 rv 4ef34a28 ==> name="splashpos" value="m,m"
INSERT: table 4ff9383c, filled 6/79 rv 4ef3476c ==> name="fdt_high" value="0xffffffff"
INSERT: table 4ff9383c, filled 7/79 rv 4ef34604 ==> name="initrd_high" value="0xffffffff"
INSERT: free(data = 4ef34530)
INSERT: done
initcall: 17806bbc (relocated to 4ff3cbbc)
initcall: 17819e04 (relocated to 4ff4fe04)
No panel detected: default to Hannstar-XGA
enable lvds end@
Display: Hannstar-XGA (1024x600)
ipu_clk = 264000000
ldb_clk[0] = 65000000
ldb_clk[1] = 65000000
read BS_CLKGEN0 div:0, final_rate:4224000000, prate:264000000
read BS_CLKGEN0 div:0, final_rate:4224000000, prate:264000000
IPU DMFC NORMAL mode: 1(0~1), 5B(4,5), 5F(6,7)
mxcfb_init_fbinfo: 4 640 112 524
Framebuffer structures at: fbi=0x4ef34cd8 mxcfbi=0x4ef34ee8
allocated fb @ paddr=0x4EF34F60, size=3686400.
Channel already disabled 9
Channel already uninitialized 9
setup_disp_channel1 called
bpp_to_pixfmt: 24
init channel = 9
pixclock = 46185000 Hz
panel size = 1024 x 600
pixel clk = 46185000Hz
read BS_CLKGEN0 div:0, final_rate:1040000000, prate:65000000
setup_disp_channel2: 95ffcff 1024 600 3072 4ef34f60 4f0f6f60
bpp_to_pixfmt: 24
initializing idma ch 23 @ 027005c0
IPU DMFC DP HIGH RES: 1(0,1), 5B(2~5), 5F(6,7)
ch 23 word 0 - 00000000 00000000 00000000 E0000800 00095C7F
ch 23 word 1 - 89E1EDEC 013BCD3D 20E4C000 FFF2FFC0 000C4100
PFS 0x7, BPP 0x1, NPB 0x13
FW 1023, FH 599, Stride 3071
Width0 7+1, Width1 7+1, Width2 7+1, Width3 7+1, Offset0 0, Offset1 8, Offset2 16, Offset3 24
IPU_CONF = 0x00000660
IDMAC_CONF = 0x0000002F
IDMAC_CHA_EN1 = 0x00800000
IDMAC_CHA_EN2 = 0x00000000
IDMAC_CHA_PRI1 = 0x18800000
IDMAC_CHA_PRI2 = 0x00000000
IPU_CHA_DB_MODE_SEL0 = 0x00800000
IPU_CHA_DB_MODE_SEL1 = 0x00000000
DMFC_WR_CHAN = 0x00000090
DMFC_WR_CHAN_DEF = 0x202020F6
DMFC_DP_CHAN = 0x0000968A
DMFC_DP_CHAN_DEF = 0x2020F6F6
DMFC_IC_CTRL = 0x00000002
IPU_FS_PROC_FLOW1 = 0x00000000
IPU_FS_PROC_FLOW2 = 0x00000000
IPU_FS_PROC_FLOW3 = 0x00000000
IPU_FS_DISP_FLOW1 = 0x00000000
Framebuffer at 0x4ef34f60
Video: Drawing the logo ...
initcall: 17806aa8 (relocated to 4ff3caa8)
initcall: 1781714c (relocated to 4ff4d14c)
In: serial
Out: serial
Err: serial
initcall: 17802cf4 (relocated to 4ff38cf4)
initcall: 17806a98 (relocated to 4ff3ca98)
initcall: 17806a78 (relocated to 4ff3ca78)
initcall: 17803e68 (relocated to 4ff39e68)
initcall: 17806a68 (relocated to 4ff3ca68)
unsupported boot devices
check_and_clean: reg 0, flag_set 0
Fastboot: Normal
SATA isn't buildin
initcall: 17806a48 (relocated to 4ff3ca48)
Net: eth_init: fec_probe(bd, -1, 1) @ 02188000
fec_mii_setspeed: mii_speed 0000001a |
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