[问答]

如何移除uboot和kernel开机logo？

1985 RK3036

问答对人有帮助，内容完整，我也想知道答案 0 如何移除uboot和kernel开机logo？ 0
2022-3-2 10:16:52　　评论淘帖0 邀请回答您可以邀请以下用户，快速回答问题 × liutiefu 该类别下有 26 个回答。邀请回答 tigerwang711 该类别下有 20 个回答。邀请回答 ze55me 该类别下有 20 个回答。邀请回答杀狼000 该类别下有 19 个回答。邀请回答 zhuzb0754 该类别下有 19 个回答。邀请回答冰箱洗衣机该类别下有 18 个回答。邀请回答 YYXIAO 该类别下有 18 个回答。邀请回答 mede1001 该类别下有 17 个回答。邀请回答安德森大该类别下有 17 个回答。邀请回答 CDCNKA 该类别下有 17 个回答。邀请回答 jjll652 该类别下有 17 个回答。邀请回答河神大人该类别下有 17 个回答。邀请回答熊本熊该类别下有 16 个回答。邀请回答 YOYOOO 该类别下有 16 个回答。邀请回答麻酱该类别下有 16 个回答。邀请回答世态薄凉该类别下有 16 个回答。邀请回答 wuli北该类别下有 15 个回答。邀请回答五斤麻辣油该类别下有 15 个回答。邀请回答 Green_LJ 该类别下有 15 个回答。邀请回答江左盟该类别下有 15 个回答。邀请回答举报陈静相关推荐 • 为什么[RK3288][Android6.0]在移除uboot logo后还是会显示kernel logo呢 1054 • linux kernel里的logo显示出来要怎么实现呢 1470 • 编译固件开机kernel logo白屏如何解决 3034 • 怎样去解决RK3128 android 7.1的uboot阶段logo问题呢 1525 • 请问怎么更换ITOP-3399平台的开机logo？ 1615 • 如何实现VS-RK3288板卡HDMI显示uboot和kernel的logo图片？ 1704 • IMX8MM在Uboot阶段无法显示logo，现象为花屏是怎么回事？ 199 • 如何把uboot层logo的关闭显示呢 2533 • RK3399 Linux系统如何修改开机Logo？ 2251 • 请问RK3288如何制作内核开机logo？ 2384 1个回答

答案对人有帮助，有参考价值 0 Platform: Rockchip OS: Android 6.0 Kernel: 3.10.92 diff --git a/arch/arm/boot/dts/rk3288-b.dts b/arch/arm/boot/dts/rk3288-b.dts index ad3bc1a..f000e29 100644 --- a/arch/arm/boot/dts/rk3288-b.dts +++ b/arch/arm/boot/dts/rk3288-b.dts @@ -353,7 +353,7 @@ &fb { rockchip,disp-mode = ; - rockchip,uboot-logo-on = <1>; + rockchip,uboot-logo-on = <0>; }; 在移除了uboot logo之后还是会显示kernel logo(kerne自带而并非rk显示logo机制),所有需要关闭. diff --git a/arch/arm/configs/rockchip_b_defconfig b/arch/arm/configs/rockchip_b_defconfig index 092dc3c..b699f96 100644 --- a/arch/arm/configs/rockchip_b_defconfig +++ b/arch/arm/configs/rockchip_b_defconfig @@ -439,7 +439,7 @@ CONFIG_RK1000_TVOUT_CVBS=y CONFIG_RK3036_TV_ENCODER=y CONFIG_ROCKCHIP_RGA=y CONFIG_ROCKCHIP_RGA2=y -CONFIG_LOGO=y +#CONFIG_LOGO=y CONFIG_SOUND=y CONFIG_SND=y # CONFIG_SND_SUPPORT_OLD_API is not set uboot logo显示可参考: http://blog.csdn.net/kris_fei/article/details/52584903 kernel logo是根据是否开启了uboot logo display来决定是否要显示的,在函数rk_fb_register()中，并且kernel logo的图片大小要和uboot一直，否则就无法显示。 #if !defined(CONFIG_FRAMEBUFFER_CONSOLE) if (dev_drv->prop == PRMRY) { u16 xact, yact; int format; u32 dsp_addr; struct fb_info main_fbi = rk_fb->fb[0]; main_fbi->fbops->fb_open(main_fbi, 1); main_fbi->var.pixclock = dev_drv->pixclock; if (dev_drv->iommu_enabled) { if (dev_drv->mmu_dev) rockchip_iovmm_set_fault_handler(dev_drv->dev, rk_fb_sysmmu_fault_handler); } rk_fb_alloc_buffer(main_fbi);/ only alloc memory for main fb / dev_drv->uboot_logo = support_uboot_display();　//是否支持uboot logo display if (dev_drv->uboot_logo && uboot_logo_offset && uboot_logo_base) { int width, height, bits, xvir; phys_addr_t start = uboot_logo_base + uboot_logo_offset; unsigned int size = uboot_logo_size - uboot_logo_offset; unsigned int nr_pages; int ymirror = 0; struct page pages; char vaddr; int i = 0; if (dev_drv->ops->get_dspbuf_info) dev_drv->ops->get_dspbuf_info(dev_drv, &xact, &yact, &format,&dsp_addr, &ymirror); nr_pages = size >> PAGE_SHIFT; pages = kzalloc(sizeof(struct page) * nr_pages, GFP_KERNEL); while (i < nr_pages) { pages = phys_to_page(start); start += PAGE_SIZE; i++; } vaddr = vmap(pages, nr_pages, VM_MAP, pgprot_writecombine(PAGE_KERNEL)); if (!vaddr) { pr_err("failed to vmap phy addr 0x%lxn", (long)(uboot_logo_base + uboot_logo_offset)); return -1; } //bmp图片解压 if (bmpdecoder(vaddr, main_fbi->screen_base, &width, &height, &bits)) { kfree(pages); vunmap(vaddr); return 0; } kfree(pages); vunmap(vaddr); if (dev_drv->uboot_logo && (width != xact \|\| height != yact)) { pr_err("can't support uboot kernel logo use different size [%dx%d] != [%dx%d]n", xact, yact, width, height); return 0; } xvir = ALIGN(width * bits, 1 << 5) >> 5; ymirror = 0; local_irq_save(flags); if (dev_drv->ops->wait_frame_start) dev_drv->ops->wait_frame_start(dev_drv, 0); if (dev_drv->ops->post_dspbuf) { dev_drv->ops->post_dspbuf(dev_drv, main_fbi->fix.smem_start, rk_fb_data_fmt(0, bits), width, height, xvir, ymirror); } if (dev_drv->iommu_enabled) { rk_fb_poll_wait_frame_complete(); if (dev_drv->ops->mmu_en) dev_drv->ops->mmu_en(dev_drv); freed_index = 0; } local_irq_restore(flags); return 0; } else if (dev_drv->uboot_logo && uboot_logo_base) { u32 start = uboot_logo_base; int logo_len, i = 0; int y_mirror = 0; unsigned int nr_pages; struct page *pages; char vaddr; int align = 0, xvir; dev_drv->ops->get_dspbuf_info(dev_drv, &xact, &yact, &format, &start, &y_mirror); logo_len = rk_fb_pixel_width(format) * xact * yact >> 3; if (logo_len > uboot_logo_size \|\| logo_len > main_fbi->fix.smem_len) { pr_err("logo size > uboot reserve buffer sizen"); return -1; } if (y_mirror) start -= logo_len; align = start % PAGE_SIZE; start -= align; nr_pages = PAGE_ALIGN(logo_len + align) >> PAGE_SHIFT; pages = kzalloc(sizeof(struct page) * nr_pages, GFP_KERNEL); while (i < nr_pages) { pages = phys_to_page(start); start += PAGE_SIZE; i++; } vaddr = vmap(pages, nr_pages, VM_MAP, pgprot_writecombine(PAGE_KERNEL)); if (!vaddr) { pr_err("failed to vmap phy addr 0x%xn", start); return -1; } memcpy(main_fbi->screen_base, vaddr + align, logo_len); kfree(pages); vunmap(vaddr); xvir = ALIGN(xact * rk_fb_pixel_width(format), 1 << 5) >> 5; local_irq_save(flags); if (dev_drv->ops->wait_frame_start) dev_drv->ops->wait_frame_start(dev_drv, 0); dev_drv->ops->post_dspbuf(dev_drv, main_fbi->fix.smem_start + (y_mirror ? logo_len : 0), format,xact, yact, xvir, y_mirror); if (dev_drv->iommu_enabled) { rk_fb_poll_wait_frame_complete(); if (dev_drv->ops->mmu_en) dev_drv->ops->mmu_en(dev_drv); freed_index = 0; } local_irq_restore(flags); return 0; } else { if (dev_drv->iommu_enabled) { if (dev_drv->ops->mmu_en) dev_drv->ops->mmu_en(dev_drv); freed_index = 0; } } #if defined(CONFIG_LOGO) main_fbi->fbops->fb_set_par(main_fbi); #if defined(CONFIG_LOGO_LINUX_BMP) if (fb_prewine_bmp_logo(main_fbi, FB_ROTATE_UR)) { fb_set_cmap(&main_fbi->cmap, main_fbi); fb_show_bmp_logo(main_fbi, FB_ROTATE_UR); } #else if (fb_prepare_logo(main_fbi, FB_ROTATE_UR)) { fb_set_cmap(&main_fbi->cmap, main_fbi); fb_show_logo(main_fbi, FB_ROTATE_UR); } #endif main_fbi->fbops->fb_pan_display(&main_fbi->var, main_fbi); #endif } else { struct fb_info *extend_fbi = rk_fb->fb[dev_drv->fb_index_base]; extend_fbi->var.pixclock = rk_fb->fb[0]->var.pixclock; extend_fbi->fbops->fb_open(extend_fbi, 1); if (dev_drv->iommu_enabled) { if (dev_drv->mmu_dev) rockchip_iovmm_set_fault_handler(dev_drv->dev, rk_fb_sysmmu_fault_handler); } rk_fb_alloc_buffer(extend_fbi); } #endif

2022-3-2 17:40:31 评论举报萧登水