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d678a59d2d
When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"' I failed to notice that b4 noticed it was based on next and so took that as the base commit and merged that part of next to master. This reverts commitc8ffd1356d, reversing changes made to2ee6f3a5f7. Reported-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Tom Rini <trini@konsulko.com>
41 lines
1.1 KiB
C
41 lines
1.1 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2012 Henrik Nordstrom <henrik@henriknordstrom.net>
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*
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* (C) Copyright 2007-2011
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* Allwinner Technology Co., Ltd. <www.allwinnertech.com>
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* Tom Cubie <tangliang@allwinnertech.com>
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*
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* SRAM init for older sunxi SoCs.
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*/
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#include <common.h>
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#include <init.h>
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#include <asm/io.h>
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#include <asm/arch/cpu.h>
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void sunxi_sram_init(void)
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{
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/*
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* Undocumented magic taken from boot0, without this DRAM
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* access gets messed up (seems cache related).
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* The boot0 sources describe this as: "config ema for cache sram"
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* Newer SoCs (A83T, H3 and anything beyond) don't need this anymore.
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*/
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if (IS_ENABLED(CONFIG_MACH_SUN6I))
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setbits_le32(SUNXI_SRAMC_BASE + 0x44, 0x1800);
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if (IS_ENABLED(CONFIG_MACH_SUN8I)) {
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uint version = sunxi_get_sram_id();
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if (IS_ENABLED(CONFIG_MACH_SUN8I_A23)) {
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if (version == 0x1650)
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setbits_le32(SUNXI_SRAMC_BASE + 0x44, 0x1800);
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else /* 0x1661 ? */
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setbits_le32(SUNXI_SRAMC_BASE + 0x44, 0xc0);
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} else if (IS_ENABLED(CONFIG_MACH_SUN8I_A33)) {
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if (version != 0x1667)
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setbits_le32(SUNXI_SRAMC_BASE + 0x44, 0xc0);
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}
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}
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}
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