8f34c2760d
project:cfg:BoardConfig_IPC: Added fastboot BoardConfig file and firmware post-scripts, distinguishing between the BoardConfigs for Luckfox Pico Pro and Luckfox Pico Max. project:app: Added fastboot_client and rk_smart_door for quick boot applications; updated rkipc app to adapt to the latest media library. media:samples: Added more usage examples. media:rockit: Fixed bugs; removed support for retrieving data frames from VPSS. media:isp: Updated rkaiq library and related tools to support connection to RKISP_Tuner. sysdrv:Makefile: Added support for compiling drv_ko on Luckfox Pico Ultra W using Ubuntu; added support for custom root filesystem. sysdrv:tools:board: Updated Buildroot optional mirror sources, updated some software versions, and stored device tree files and configuration files that undergo multiple modifications for U-Boot and kernel separately. sysdrv:source:mcu: Used RISC-V MCU SDK with RT-Thread system, mainly for initializing camera AE during quick boot. sysdrv:source:uboot: Added support for fastboot; added high baud rate DDR bin for serial firmware upgrades. sysdrv:source:kernel: Upgraded to version 5.10.160; increased NPU frequency for RV1106G3; added support for fastboot. Signed-off-by: luckfox-eng29 <eng29@luckfox.com>
111 lines
2.6 KiB
C
111 lines
2.6 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
/*
|
|
* Based on arch/arm/mm/ioremap.c
|
|
*
|
|
* (C) Copyright 1995 1996 Linus Torvalds
|
|
* Hacked for ARM by Phil Blundell <philb@gnu.org>
|
|
* Hacked to allow all architectures to build, and various cleanups
|
|
* by Russell King
|
|
* Copyright (C) 2012 ARM Ltd.
|
|
*/
|
|
|
|
#include <linux/export.h>
|
|
#include <linux/mm.h>
|
|
#include <linux/vmalloc.h>
|
|
#include <linux/io.h>
|
|
#include <linux/memblock.h>
|
|
|
|
#include <asm/fixmap.h>
|
|
#include <asm/tlbflush.h>
|
|
|
|
static void __iomem *__ioremap_caller(phys_addr_t phys_addr, size_t size,
|
|
pgprot_t prot, void *caller)
|
|
{
|
|
unsigned long last_addr;
|
|
unsigned long offset = phys_addr & ~PAGE_MASK;
|
|
int err;
|
|
unsigned long addr;
|
|
struct vm_struct *area;
|
|
|
|
/*
|
|
* Page align the mapping address and size, taking account of any
|
|
* offset.
|
|
*/
|
|
phys_addr &= PAGE_MASK;
|
|
size = PAGE_ALIGN(size + offset);
|
|
|
|
/*
|
|
* Don't allow wraparound, zero size or outside PHYS_MASK.
|
|
*/
|
|
last_addr = phys_addr + size - 1;
|
|
if (!size || last_addr < phys_addr || (last_addr & ~PHYS_MASK))
|
|
return NULL;
|
|
|
|
/*
|
|
* Don't allow RAM to be mapped.
|
|
*/
|
|
if (WARN_ON(pfn_valid(__phys_to_pfn(phys_addr))))
|
|
return NULL;
|
|
|
|
area = get_vm_area_caller(size, VM_IOREMAP, caller);
|
|
if (!area)
|
|
return NULL;
|
|
addr = (unsigned long)area->addr;
|
|
area->phys_addr = phys_addr;
|
|
|
|
err = ioremap_page_range(addr, addr + size, phys_addr, prot);
|
|
if (err) {
|
|
vunmap((void *)addr);
|
|
return NULL;
|
|
}
|
|
|
|
return (void __iomem *)(offset + addr);
|
|
}
|
|
|
|
void __iomem *__ioremap(phys_addr_t phys_addr, size_t size, pgprot_t prot)
|
|
{
|
|
return __ioremap_caller(phys_addr, size, prot,
|
|
__builtin_return_address(0));
|
|
}
|
|
EXPORT_SYMBOL(__ioremap);
|
|
|
|
void iounmap(volatile void __iomem *io_addr)
|
|
{
|
|
unsigned long addr = (unsigned long)io_addr & PAGE_MASK;
|
|
|
|
/*
|
|
* We could get an address outside vmalloc range in case
|
|
* of ioremap_cache() reusing a RAM mapping.
|
|
*/
|
|
if (is_vmalloc_addr((void *)addr))
|
|
vunmap((void *)addr);
|
|
}
|
|
EXPORT_SYMBOL(iounmap);
|
|
|
|
void __iomem *ioremap_cache(phys_addr_t phys_addr, size_t size)
|
|
{
|
|
/* For normal memory we already have a cacheable mapping. */
|
|
if (pfn_valid(__phys_to_pfn(phys_addr)))
|
|
return (void __iomem *)__phys_to_virt(phys_addr);
|
|
|
|
return __ioremap_caller(phys_addr, size, __pgprot(PROT_NORMAL),
|
|
__builtin_return_address(0));
|
|
}
|
|
EXPORT_SYMBOL(ioremap_cache);
|
|
|
|
/*
|
|
* Must be called after early_fixmap_init
|
|
*/
|
|
void __init early_ioremap_init(void)
|
|
{
|
|
early_ioremap_setup();
|
|
}
|
|
|
|
bool arch_memremap_can_ram_remap(resource_size_t offset, size_t size,
|
|
unsigned long flags)
|
|
{
|
|
unsigned long pfn = PHYS_PFN(offset);
|
|
|
|
return memblock_is_map_memory(pfn);
|
|
}
|