mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-07 03:36:16 +09:00
83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
99 lines
1.9 KiB
C
99 lines
1.9 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2016 Stefan Roese <sr@denx.de>
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*/
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#include <common.h>
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#include <dm.h>
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#include <fdtdec.h>
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#include <linux/libfdt.h>
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#include <pci.h>
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#include <asm/io.h>
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#include <asm/system.h>
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#include <asm/arch/cpu.h>
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#include <asm/arch/soc.h>
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#include <asm/armv8/mmu.h>
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DECLARE_GLOBAL_DATA_PTR;
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/*
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* Not all memory is mapped in the MMU. So we need to restrict the
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* memory size so that U-Boot does not try to access it. Also, the
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* internal registers are located at 0xf000.0000 - 0xffff.ffff.
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* Currently only 2GiB are mapped for system memory. This is what
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* we pass to the U-Boot subsystem here.
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*/
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#define USABLE_RAM_SIZE 0x80000000
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ulong board_get_usable_ram_top(ulong total_size)
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{
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if (gd->ram_size > USABLE_RAM_SIZE)
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return USABLE_RAM_SIZE;
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return gd->ram_size;
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}
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/*
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* On ARMv8, MBus is not configured in U-Boot. To enable compilation
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* of the already implemented drivers, lets add a dummy version of
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* this function so that linking does not fail.
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*/
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const struct mbus_dram_target_info *mvebu_mbus_dram_info(void)
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{
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return NULL;
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}
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/* DRAM init code ... */
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int dram_init_banksize(void)
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{
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fdtdec_setup_memory_banksize();
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return 0;
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}
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int dram_init(void)
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{
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if (fdtdec_setup_memory_size() != 0)
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return -EINVAL;
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return 0;
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}
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int arch_cpu_init(void)
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{
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/* Nothing to do (yet) */
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return 0;
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}
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int arch_early_init_r(void)
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{
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struct udevice *dev;
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int ret;
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int i;
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/*
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* Loop over all MISC uclass drivers to call the comphy code
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* and init all CP110 devices enabled in the DT
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*/
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i = 0;
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while (1) {
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/* Call the comphy code via the MISC uclass driver */
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ret = uclass_get_device(UCLASS_MISC, i++, &dev);
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/* We're done, once no further CP110 device is found */
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if (ret)
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break;
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}
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/* Cause the SATA device to do its early init */
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uclass_first_device(UCLASS_AHCI, &dev);
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#ifdef CONFIG_DM_PCI
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/* Trigger PCIe devices detection */
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pci_init();
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#endif
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return 0;
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}
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