This repo is based on edk2-sdm845 and rk3399-edk2, check out those if you have questions.
Telegram group: https://t.me/UEFIonRK3399
Ubuntu 18.04:
sudo apt update
sudo apt install build-essential uuid-dev iasl git nasm python3-distutils gcc-aarch64-linux-gnuUbuntu 20.04 is also proved to be fine.
1.Clone edk2 and edk2-platforms (Place three directories side by side.)
edk2:
commit:3a3713e62cfad00d78bb938b0d9fb1eedaeff314
edk2-platforms:
commit:cfdc7f907d545b14302295b819ea078bc36c6a40
mkdir workspace-edk2
cd workspace-edk2
git clone https://github.com/tianocore/edk2.git -o 3a3713e62cfad00d78bb938b0d9fb1eedaeff314 --recursive --depth=1
git clone https://github.com/tianocore/edk2-platforms.git -o cfdc7f907d545b14302295b819ea078bc36c6a40 --recursive --depth=12.Clone this project(doesn't exist yet)
git clone https://github.com/edk2-porting/edk2-rk3399.gitWorkspace tree like:
workspace-edk2
├── edk2
├── edk2-platforms
└── edk2-sdm845
3.Build this project
bash build.sh --device polaris4.check out edk2-sdm845/workspace/Build/sdm845Pkg/DEBUG_GCC5/FV/SDM845PKG_UEFI.fd
This edk2 build is a second stage boot image which needs to be loaded by u-boot sysboot (extlinux).
In order to make SimpleFB working properly, the u-boot should initialize the framebuffer, which you can determine by whether a logo showing during u-boot stage or not.
Vendor u-boot fb base is 0xF5F00000 and resolution is 800x480.
Change FB base in sdm845Pkg.dsc#L140 and resolution in polaris.dsc
Also, if you are using Rockchip DRM driver in U-boot, you can also do some hack to alter the resolution of framebuffer.
--- a/drivers/video/drm/rockchip_display.c
+++ b/drivers/video/drm/rockchip_display.c
@@ -759,6 +759,8 @@ static int display_logo(struct display_state *state)
if (!state->is_init)
return -ENODEV;
+ printf("logo bpp: = %d\n", logo->bpp);
+ logo->bpp = 32; // force bpp into 32
switch (logo->bpp) {
case 16:
crtc_state->format = ROCKCHIP_FMT_RGB565;
@@ -775,17 +777,28 @@ static int display_logo(struct display_state *state)
}
crtc_state->rb_swap = logo->bpp != 32;
hdisplay = conn_state->mode.hdisplay;
+ printf("hdisplay: = %d\n", hdisplay);
vdisplay = conn_state->mode.vdisplay;
- crtc_state->src_w = logo->width;
- crtc_state->src_h = logo->height;
+ printf("vdisplay: = %d\n", vdisplay);
+ // crtc_state->src_w = logo->width;
+ printf("Force display into 1440x900\n");
+ crtc_state->src_w = 1440;
+ printf("logo width: = %d\n", logo->width);
+ // crtc_state->src_h = logo->height;
+ crtc_state->src_h = 900;
+ printf("logo height: = %d\n", logo->height);
crtc_state->src_x = 0;
crtc_state->src_y = 0;
crtc_state->ymirror = logo->ymirror;
- crtc_state->dma_addr = (u32)(unsigned long)logo->mem + logo->offset;
+ crtc_state->dma_addr = (u32)(unsigned long)logo->mem; // + logo->offset;
+ printf("dma_addr: = 0x%08x\n", crtc_state->dma_addr);
+ printf("logo addr: = 0x%08x\n", (u32)(unsigned long)logo->mem);
crtc_state->xvir = ALIGN(crtc_state->src_w * logo->bpp, 32) >> 5;
+ logo->mode = ROCKCHIP_DISPLAY_FULLSCREEN; // Force into FULLSCREEN
if (logo->mode == ROCKCHIP_DISPLAY_FULLSCREEN) {
crtc_state->crtc_x = 0;
crtc_state->crtc_y = 0;
crtc_state->crtc_w = hdisplay;label whatever
kernel /SDM845PKG_UEFI.fd
mkdir efi
sudo mount /dev/sdb4 efi # replace /dev/sdb4 to the partition of your sdcard
sudo cp extlinux.conf efi
sudo cp SDM845PKG_UEFI.fd efi
sudo umount efi
U-boot can automatically boot extlinux, and you can also boot manually.
# change mmc 1:4 to your sdcard device & partition
sysboot mmc 1:4 any 0x00500000 /extlinux.conf
- edk2 input not working in serial
SimpleFbDxe driver is from imbushuo's Lumia950XLPkg.
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