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https://github.com/brain-hackers/u-boot-brain
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![Masahiro Yamada](/assets/img/avatar_default.png)
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>
110 lines
2.6 KiB
C
110 lines
2.6 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Implements the 'bd' command to show board information
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*
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* (C) Copyright 2003
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*/
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#include <common.h>
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#include <command.h>
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#include <env.h>
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#include <net.h>
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#include <vsprintf.h>
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#include <asm/cache.h>
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DECLARE_GLOBAL_DATA_PTR;
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void bdinfo_print_num(const char *name, ulong value)
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{
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printf("%-12s= 0x%0*lx\n", name, 2 * (int)sizeof(value), value);
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}
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static void print_eth(int idx)
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{
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char name[10], *val;
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if (idx)
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sprintf(name, "eth%iaddr", idx);
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else
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strcpy(name, "ethaddr");
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val = env_get(name);
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if (!val)
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val = "(not set)";
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printf("%-12s= %s\n", name, val);
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}
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static void print_lnum(const char *name, unsigned long long value)
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{
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printf("%-12s= 0x%.8llX\n", name, value);
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}
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void bdinfo_print_mhz(const char *name, unsigned long hz)
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{
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char buf[32];
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printf("%-12s= %6s MHz\n", name, strmhz(buf, hz));
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}
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static void print_bi_dram(const struct bd_info *bd)
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{
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#ifdef CONFIG_NR_DRAM_BANKS
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int i;
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for (i = 0; i < CONFIG_NR_DRAM_BANKS; ++i) {
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if (bd->bi_dram[i].size) {
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bdinfo_print_num("DRAM bank", i);
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bdinfo_print_num("-> start", bd->bi_dram[i].start);
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bdinfo_print_num("-> size", bd->bi_dram[i].size);
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}
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}
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#endif
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}
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__weak void arch_print_bdinfo(void)
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{
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}
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int do_bdinfo(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
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{
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struct bd_info *bd = gd->bd;
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#ifdef DEBUG
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bdinfo_print_num("bd address", (ulong)bd);
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#endif
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bdinfo_print_num("boot_params", (ulong)bd->bi_boot_params);
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print_bi_dram(bd);
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bdinfo_print_num("memstart", (ulong)bd->bi_memstart);
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print_lnum("memsize", (u64)bd->bi_memsize);
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bdinfo_print_num("flashstart", (ulong)bd->bi_flashstart);
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bdinfo_print_num("flashsize", (ulong)bd->bi_flashsize);
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bdinfo_print_num("flashoffset", (ulong)bd->bi_flashoffset);
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printf("baudrate = %u bps\n", gd->baudrate);
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bdinfo_print_num("relocaddr", gd->relocaddr);
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bdinfo_print_num("reloc off", gd->reloc_off);
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printf("%-12s= %u-bit\n", "Build", (uint)sizeof(void *) * 8);
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if (IS_ENABLED(CONFIG_CMD_NET)) {
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printf("current eth = %s\n", eth_get_name());
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print_eth(0);
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printf("IP addr = %s\n", env_get("ipaddr"));
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}
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bdinfo_print_num("fdt_blob", (ulong)gd->fdt_blob);
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bdinfo_print_num("new_fdt", (ulong)gd->new_fdt);
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bdinfo_print_num("fdt_size", (ulong)gd->fdt_size);
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#if defined(CONFIG_LCD) || defined(CONFIG_VIDEO) || defined(CONFIG_DM_VIDEO)
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bdinfo_print_num("FB base ", gd->fb_base);
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#endif
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#if CONFIG_IS_ENABLED(MULTI_DTB_FIT)
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bdinfo_print_num("multi_dtb_fit", (ulong)gd->multi_dtb_fit);
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#endif
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arch_print_bdinfo();
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return 0;
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}
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U_BOOT_CMD(
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bdinfo, 1, 1, do_bdinfo,
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"print Board Info structure",
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""
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);
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