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Hello, Jiaoka, I don't have your schematic, So I don't know which port your LCD is connected to , Let me assume you use one of the following ports: (1)DISP0 ----adding your LCD timing to "linux_top/drivers/video/mxc/mxc_lcdif.c" (static struct fb_videomode lcdif_modedb[] =) static struct fb_videomode lcdif_modedb[] = { { /* 800x480 @ 57 Hz , pixel clk @ 27MHz */ "CLAA-WVGA", 57, 800, 480, 37037, 40, 60, 10, 10, 20, 10, FB_SYNC_CLK_LAT_FALL, FB_VMODE_NONINTERLACED, 0,}, { /* 800x480 @ 60 Hz , pixel clk @ 32MHz */ "SEIKO-WVGA", 60, 800, 480, 29850, 89, 164, 23, 10, 10, 10, FB_SYNC_CLK_LAT_FALL, FB_VMODE_NONINTERLACED, 0,}, {/* According to the datasheet of your LCD, collect it's timing and fill it here */ /* VGA 1440x900 106.5M pixel clk output */ "1440x900", 60, 1440, 900, 9389, 232, 80, 25, 3, 152, 6, 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_DETAILED,}, } (2)Using LVDS port Open "linux_top/drivers/video/mxc/ldb.c", and replace original one with yours : static struct fb_videomode ldb_modedb[] = { {/* No.1 member is added by me and validated. */ "LDB-WXGA", 60, 1280, 800, 13812, 60, 60, 20, 15, 40, 3, 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_DETAILED,}, { "LDB-XGA", 60, 1024, 768, 15385, 220, 40, 21, 7, 60, 10, 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_DETAILED,}, { "LDB-1080P60", 60, 1920, 1080, 7692, 100, 40, 30, 3, 10, 2, 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_DETAILED,}, }; (3) Adjust BSP File static struct ipuv3_fb_platform_data qcorein_fb_data[] = { {/*fb0*/ .disp_dev = "ldb", .interface_pix_fmt = IPU_PIX_FMT_RGB666, .mode_str = "LDB-WXGA", .default_bpp = 16, .int_clk = false, .late_init = false, }, { .disp_dev = "hdmi", .interface_pix_fmt = IPU_PIX_FMT_RGB24, .mode_str = "1920x1080M@60", .default_bpp = 32, .int_clk = false, .late_init = false, }, { .disp_dev = "lcd", .interface_pix_fmt = IPU_PIX_FMT_RGB24, .mode_str = "1440x900", .default_bpp = 32, .int_clk = false, }, }; (4)Distrabuting IPU display source static struct fsl_mxc_hdmi_core_platform_data hdmi_core_data = { .ipu_id = 1, .disp_id = 0, }; static struct fsl_mxc_lcd_platform_data lcdif_data = { .ipu_id = 0, .disp_id = 0, .default_ifmt = IPU_PIX_FMT_RGB24, }; static struct fsl_mxc_ldb_platform_data ldb_data = { .ipu_id = 0, .disp_id = 1, .ext_ref = 1, .mode = LDB_SEP1, /*Using LVDS1 Port*/ .sec_ipu_id = 0, .sec_disp_id = 0, }; (5)Setting u-boot environment (starting from NFS) #setenv ipaddr 192.168.1.103 #setenv serverip 192.168.1.102 #setenv gateway 192.168.1.1 #setenv ethaddr 00:04:9f:00:ea:d3 #setenv nfsroot /opt/nfsroot #setenv bootargs_base 'setenv bootargs console=ttymxc0,115200' #setenv bootargs_android 'setenv bootargs ${bootargs} init=/init androidboot.console=ttymxc0 androidboot.hardware=freescale' #setenv bootargs_nfs 'setenv bootargs ${bootargs} ip=${ipaddr}:${serverip}:${gateway}:${netmask}::eth0 off root=/dev/nfs nfsroot=${serverip}:${nfsroot}' #setenv bootargs_disp 'setenv bootargs ${bootargs} video=mxcfb0:dev=ldb,bpp=32 video=mxcfb1:dev=hdmi,1920x1080M@60,if=RGB24,bpp=32 video=mxcfb2:dev=lcd,1440x900,bpp=32 fbmem=32M vmalloc=400M' #setenv bootcmd_net 'run bootargs_base bootargs_android bootargs_nfs bootargs_disp;tftpboot ${loadaddr} uImage;bootm' #run bootcmd_net
I tested this porting on a customized board, It is OK ! Please try above steps !
Regards, Weidong |
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