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1cd239f444
Add basic support for SpacemiT's Banana Pi F3 board. Update the k1.dtsi align with mainline. Note that the device tree files follow the mainline Linux source[1]. Links: https://patches.linaro.org/project/linux-serial/patch/20240730-k1-01-basic-dt-v5-8-98263aae83be@gentoo.org/ [1] Signed-off-by: Kongyang Liu <seashell11234455@gmail.com> Signed-off-by: Huan Zhou <pericycle.cc@gmail.com> Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com> Reviewed-by: Yixun Lan <dlan@gentoo.org> Tested-by: Marcel Ziswiler <marcel@ziswiler.com>
54 lines
1.1 KiB
C
54 lines
1.1 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (c) 2024, Kongyang Liu <seashell11234455@gmail.com>
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*/
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#include <asm/global_data.h>
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#include <config.h>
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#include <fdt_support.h>
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#include <linux/sizes.h>
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DECLARE_GLOBAL_DATA_PTR;
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int dram_init(void)
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{
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gd->ram_base = CFG_SYS_SDRAM_BASE;
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/* TODO get ram size from ddr controller */
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gd->ram_size = SZ_4G;
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return 0;
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}
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int dram_init_banksize(void)
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{
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gd->bd->bi_dram[0].start = CFG_SYS_SDRAM_BASE;
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gd->bd->bi_dram[0].size = min_t(phys_size_t, gd->ram_size, SZ_2G);
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if (gd->ram_size > SZ_2G && CONFIG_NR_DRAM_BANKS > 1) {
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gd->bd->bi_dram[1].start = 0x100000000;
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gd->bd->bi_dram[1].size = gd->ram_size - SZ_2G;
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}
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return 0;
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}
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phys_addr_t board_get_usable_ram_top(phys_size_t total_size)
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{
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if (gd->ram_size > SZ_2G)
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return SZ_2G;
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return gd->ram_size;
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}
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int ft_board_setup(void *blob, struct bd_info *bd)
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{
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u64 start[CONFIG_NR_DRAM_BANKS];
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u64 size[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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start[i] = gd->bd->bi_dram[i].start;
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size[i] = gd->bd->bi_dram[i].size;
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}
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return fdt_fixup_memory_banks(blob, start, size, CONFIG_NR_DRAM_BANKS);
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}
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