mirror of
https://github.com/brain-hackers/u-boot-brain
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b75d8dc564
The Linux coding style guide (Documentation/process/coding-style.rst) clearly says: It's a **mistake** to use typedef for structures and pointers. Besides, using typedef for structures is annoying when you try to make headers self-contained. Let's say you have the following function declaration in a header: void foo(bd_t *bd); This is not self-contained since bd_t is not defined. To tell the compiler what 'bd_t' is, you need to include <asm/u-boot.h> #include <asm/u-boot.h> void foo(bd_t *bd); Then, the include direcective pulls in more bloat needlessly. If you use 'struct bd_info' instead, it is enough to put a forward declaration as follows: struct bd_info; void foo(struct bd_info *bd); Right, typedef'ing bd_t is a mistake. I used coccinelle to generate this commit. The semantic patch that makes this change is as follows: <smpl> @@ typedef bd_t; @@ -bd_t +struct bd_info </smpl> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> |
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| .. | ||
| imx8mq_phanbell.c | ||
| Kconfig | ||
| lpddr4_timing_1g.c | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
| spl.c | ||
U-Boot for Google's i.MX8MQ Phanbell board Quick Start =========== - Build the ARM Trusted firmware binary - Get ddr and hdmi firmware - Build U-Boot - Boot Get and Build the ARM Trusted firmware ====================================== Note: srctree is U-Boot source directory Get ATF from: https://source.codeaurora.org/external/imx/imx-atf branch: imx_4.19.35_1.0.0 $ make PLAT=imx8mq bl31 $ cp build/imx8mq/release/bl31.bin $(builddir) Get the ddr and hdmi firmware ============================= $ wget https://www.nxp.com/lgfiles/NMG/MAD/YOCTO/firmware-imx-7.9.bin $ chmod +x firmware-imx-7.9.bin $ ./firmware-imx-7.9.bin $ cp firmware-imx-7.9/firmware/hdmi/cadence/signed_hdmi_imx8m.bin $(builddir) $ cp firmware-imx-7.9/firmware/ddr/synopsys/lpddr4*.bin $(builddir) Build U-Boot ============ $ export CROSS_COMPILE=aarch64-linux-gnu- $ make imx8mq_phanbell_defconfig $ make flash.bin Burn the flash.bin to MicroSD card offset 33KB $sudo dd if=flash.bin of=/dev/sd[x] bs=1K seek=33 Boot ==== Set Boot switch SW1: 1011 to boot from Micro SD.