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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>
65 lines
1.4 KiB
C
65 lines
1.4 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2016-2018 Socionext Inc.
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* Author: Masahiro Yamada <yamada.masahiro@socionext.com>
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*/
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#include <fdt_support.h>
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#include <fdtdec.h>
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#include <jffs2/load_kernel.h>
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#include <mtd_node.h>
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#include <linux/errno.h>
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#include <linux/kernel.h>
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#include <linux/printk.h>
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#include "soc-info.h"
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/*
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* The DRAM PHY requires 64 byte scratch area in each DRAM channel
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* for its dynamic PHY training feature.
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*/
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static int uniphier_ld20_fdt_mem_rsv(void *fdt, struct bd_info *bd)
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{
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unsigned long rsv_addr;
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const unsigned long rsv_size = 64;
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int i, ret;
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if (!IS_ENABLED(CONFIG_ARCH_UNIPHIER_LD20) ||
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uniphier_get_soc_id() != UNIPHIER_LD20_ID)
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return 0;
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for (i = 0; i < ARRAY_SIZE(bd->bi_dram); i++) {
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if (!bd->bi_dram[i].size)
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continue;
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rsv_addr = bd->bi_dram[i].start + bd->bi_dram[i].size;
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rsv_addr -= rsv_size;
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ret = fdt_add_mem_rsv(fdt, rsv_addr, rsv_size);
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if (ret)
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return -ENOSPC;
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pr_notice(" Reserved memory region for DRAM PHY training: addr=%lx size=%lx\n",
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rsv_addr, rsv_size);
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}
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return 0;
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}
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int ft_board_setup(void *fdt, struct bd_info *bd)
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{
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static const struct node_info nodes[] = {
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{ "socionext,uniphier-denali-nand-v5a", MTD_DEV_TYPE_NAND },
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{ "socionext,uniphier-denali-nand-v5b", MTD_DEV_TYPE_NAND },
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};
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int ret;
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fdt_fixup_mtdparts(fdt, nodes, ARRAY_SIZE(nodes));
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ret = uniphier_ld20_fdt_mem_rsv(fdt, bd);
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if (ret)
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return ret;
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return 0;
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}
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