71 lines
1.9 KiB
C
71 lines
1.9 KiB
C
/*
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* Copyright
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* (C) 2013 Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#include <common.h>
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#include <init.h>
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#include <io.h>
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#include <restart.h>
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#include <asm/memory.h>
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#include <linux/mbus.h>
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#include <mach/dove-regs.h>
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static inline void dove_remap_mc_regs(void)
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{
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void __iomem *mcboot = IOMEM(DOVE_BOOTUP_MC_REGS);
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uint32_t val;
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/* remap ahb slave base */
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val = readl(DOVE_CPU_CTRL) & 0xffff0000;
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val |= (DOVE_REMAP_MC_REGS & 0xffff0000) >> 16;
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writel(val, DOVE_CPU_CTRL);
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/* remap axi bridge address */
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val = readl(DOVE_AXI_CTRL) & 0x007fffff;
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val |= DOVE_REMAP_MC_REGS & 0xff800000;
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writel(val, DOVE_AXI_CTRL);
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/* remap memory controller base address */
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val = readl(mcboot + SDRAM_REGS_BASE_DECODE) & 0x0000ffff;
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val |= DOVE_REMAP_MC_REGS & 0xffff0000;
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writel(val, mcboot + SDRAM_REGS_BASE_DECODE);
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}
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static void __noreturn dove_restart_soc(struct restart_handler *rst)
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{
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/* enable and assert RSTOUTn */
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writel(SOFT_RESET_OUT_EN, DOVE_BRIDGE_BASE + BRIDGE_RSTOUT_MASK);
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writel(SOFT_RESET_EN, DOVE_BRIDGE_BASE + BRIDGE_SYS_SOFT_RESET);
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hang();
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}
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static int dove_init_soc(void)
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{
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if (!of_machine_is_compatible("marvell,dove"))
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return 0;
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restart_handler_register_fn(dove_restart_soc);
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barebox_set_model("Marvell Dove");
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barebox_set_hostname("dove");
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dove_remap_mc_regs();
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mvebu_mbus_init();
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return 0;
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}
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postcore_initcall(dove_init_soc);
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