mirror of
https://github.com/AsahiLinux/u-boot
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aa6e94deab
The rest of the unmigrated CONFIG symbols in the CONFIG_SYS_SDRAM namespace do not easily transition to Kconfig. In many cases they likely should come from the device tree instead. Move these out of CONFIG namespace and in to CFG namespace. Signed-off-by: Tom Rini <trini@konsulko.com> Reviewed-by: Simon Glass <sjg@chromium.org>
116 lines
2.6 KiB
C
116 lines
2.6 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 <init.h>
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#include <asm/cache.h>
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#include <asm/global_data.h>
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#include <asm/ptrace.h>
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#include <linux/libfdt.h>
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#include <linux/sizes.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 0x80000000ULL
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phys_size_t board_get_usable_ram_top(phys_size_t total_size)
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{
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unsigned long top = CFG_SYS_SDRAM_BASE + min(gd->ram_size, USABLE_RAM_SIZE);
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return (gd->ram_top > top) ? top : gd->ram_top;
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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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__weak int dram_init_banksize(void)
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{
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if (CONFIG_IS_ENABLED(ARMADA_8K))
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return a8k_dram_init_banksize();
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else if (CONFIG_IS_ENABLED(ARMADA_3700))
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return a3700_dram_init_banksize();
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else if (CONFIG_IS_ENABLED(ALLEYCAT_5))
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return alleycat5_dram_init_banksize();
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else
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return fdtdec_setup_memory_banksize();
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}
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__weak int dram_init(void)
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{
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if (CONFIG_IS_ENABLED(ARMADA_8K)) {
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gd->ram_size = a8k_dram_scan_ap_sz();
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if (gd->ram_size != 0)
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return 0;
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}
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if (CONFIG_IS_ENABLED(ARMADA_3700))
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return a3700_dram_init();
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if (CONFIG_IS_ENABLED(ALLEYCAT_5))
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return alleycat5_dram_init();
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if (fdtdec_setup_mem_size_base() != 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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/* Trigger PCIe devices detection */
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if (IS_ENABLED(CONFIG_PCI))
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pci_init();
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return 0;
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}
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