mirror of
https://github.com/AsahiLinux/u-boot
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323d1f9d5b
Before this commit, the Kconfig menu in mach-uniphier only allowed us to choose one SoC to be compiled. Each SoC has its own defconfig file for the build-test coverage. Consequently, some defconfig files are duplicated with only the difference in CONFIG_DEFAULT_DEVICE_TREE and CONFIG_{SOC_NAME}=y. Now, most of board-specific parameters have been moved to device trees, so it makes sense to include init code of multiple SoCs into a single image as long as the SoCs have similar architecture. In fact, some SoCs of UniPhier family are very similar: - PH1-LD4 and PH1-sLD8 - PH1-LD6b and ProXstream2 (will be added in the upcoming commit) This commit will be helpful to merge some defconfig files for better maintainability. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
38 lines
1,022 B
C
38 lines
1,022 B
C
/*
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* Copyright (C) 2011-2015 Masahiro Yamada <yamada.masahiro@socionext.com>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <linux/io.h>
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#include <mach/bcu-regs.h>
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#include <mach/init.h>
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#define ch(x) ((x) >= 32 ? 0 : (x) < 0 ? 0x11111111 : 0x11111111 << (x))
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int ph1_sld3_bcu_init(const struct uniphier_board_data *bd)
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{
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int shift;
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writel(0x11111111, BCSCR2); /* 0x80000000-0x9fffffff: IPPC/IPPD-bus */
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writel(0x11111111, BCSCR3); /* 0xa0000000-0xbfffffff: IPPC/IPPD-bus */
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writel(0x11111111, BCSCR4); /* 0xc0000000-0xdfffffff: IPPC/IPPD-bus */
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/*
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* 0xe0000000-0xefffffff: Ex-bus
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* 0xf0000000-0xfbffffff: ASM bus
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* 0xfc000000-0xffffffff: OCM bus
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*/
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writel(0x24440000, BCSCR5);
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/* Specify DDR channel */
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shift = (bd->dram_ch1_base - bd->dram_ch0_base) / 0x04000000 * 4;
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writel(ch(shift), BCIPPCCHR2); /* 0x80000000-0x9fffffff */
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shift -= 32;
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writel(ch(shift), BCIPPCCHR3); /* 0xa0000000-0xbfffffff */
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shift -= 32;
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writel(ch(shift), BCIPPCCHR4); /* 0xc0000000-0xdfffffff */
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return 0;
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}
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