[问答]

为什么[RK3288][Android6.0]在移除uboot logo后还是会显示kernel logo呢

问答对人有帮助，内容完整，我也想知道答案 0 为什么[RK3288][Android6.0]在移除uboot logo后还是会显示kernel logo呢？怎样去解决这个问题呢？ 0 [RK3288][Android6.0] 调试笔记 --- 移除uboot和kernel开机logo.pdf 72.09 KB , 下载次数: 1
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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 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

2022-3-10 09:49:38 评论举报郑静东