u-boot/arch/x86/cpu/qemu/dram.c
Pali Rohár 049704f808 board_f: Fix types for board_get_usable_ram_top()
Commit 37dc958947 ("global_data.h: Change ram_top type to phys_addr_t")
changed type of ram_top member from ulong to phys_addr_t but did not
changed types in board_get_usable_ram_top() function which returns value
for ram_top.

So change ulong to phys_addr_t type also in board_get_usable_ram_top()
signature and implementations.

Fixes: 37dc958947 ("global_data.h: Change ram_top type to phys_addr_t")
Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
2022-09-23 15:12:42 -04:00

77 lines
1.7 KiB
C

// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com>
*/
#include <common.h>
#include <init.h>
#include <asm/global_data.h>
#include <asm/post.h>
#include <asm/arch/qemu.h>
DECLARE_GLOBAL_DATA_PTR;
u32 qemu_get_low_memory_size(void)
{
u32 ram;
outb(HIGH_RAM_ADDR, CMOS_ADDR_PORT);
ram = ((u32)inb(CMOS_DATA_PORT)) << 14;
outb(LOW_RAM_ADDR, CMOS_ADDR_PORT);
ram |= ((u32)inb(CMOS_DATA_PORT)) << 6;
ram += 16 * 1024;
return ram * 1024;
}
u64 qemu_get_high_memory_size(void)
{
u64 ram;
outb(HIGH_HIGHRAM_ADDR, CMOS_ADDR_PORT);
ram = ((u64)inb(CMOS_DATA_PORT)) << 22;
outb(MID_HIGHRAM_ADDR, CMOS_ADDR_PORT);
ram |= ((u64)inb(CMOS_DATA_PORT)) << 14;
outb(LOW_HIGHRAM_ADDR, CMOS_ADDR_PORT);
ram |= ((u64)inb(CMOS_DATA_PORT)) << 6;
return ram * 1024;
}
int dram_init(void)
{
gd->ram_size = qemu_get_low_memory_size();
gd->ram_size += qemu_get_high_memory_size();
post_code(POST_DRAM);
return 0;
}
int dram_init_banksize(void)
{
u64 high_mem_size;
gd->bd->bi_dram[0].start = 0;
gd->bd->bi_dram[0].size = qemu_get_low_memory_size();
high_mem_size = qemu_get_high_memory_size();
if (high_mem_size) {
gd->bd->bi_dram[1].start = SZ_4G;
gd->bd->bi_dram[1].size = high_mem_size;
}
return 0;
}
/*
* This function looks for the highest region of memory lower than 4GB which
* has enough space for U-Boot where U-Boot is aligned on a page boundary.
* It overrides the default implementation found elsewhere which simply
* picks the end of ram, wherever that may be. The location of the stack,
* the relocation address, and how far U-Boot is moved by relocation are
* set in the global data structure.
*/
phys_size_t board_get_usable_ram_top(phys_size_t total_size)
{
return qemu_get_low_memory_size();
}