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arm: imx: cx9020: move dram init into common place

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Move dram_init(), dram_init_banksize() and get_effective_memsize() to
arch/arm/mach-imx/mx5/mx53_dram.c, where it can be reused by m53evk and
mx53loco.

Signed-off-by: Patrick Bruenn <p.bruenn@beckhoff.com>
This commit is contained in:
Patrick Bruenn 2018-01-16 07:59:02 +01:00 committed by Stefano Babic
parent a75a3ef305
commit daebb796ff
3 changed files with 48 additions and 35 deletions
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3
arch/arm/mach-imx/mx5/Makefile
View file

@ -9,3 +9,6 @@
obj-y := soc.o clock.o
obj-y += lowlevel_init.o
# common files for mx53 dram initialization
obj-$(CONFIG_TARGET_MX53CX9020) += mx53_dram.o

45
arch/arm/mach-imx/mx5/mx53_dram.c Normal file
View file

@ -0,0 +1,45 @@
/*
* Copyright (C) 2017 Beckhoff Automation GmbH & Co. KG
* Patrick Bruenn <p.bruenn@beckhoff.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
DECLARE_GLOBAL_DATA_PTR;
phys_size_t get_effective_memsize(void)
{
/*
* WARNING: We must override get_effective_memsize() function here
* to report only the size of the first DRAM bank. This is to make
* U-Boot relocator place U-Boot into valid memory, that is, at the
* end of the first DRAM bank. If we did not override this function
* like so, U-Boot would be placed at the address of the first DRAM
* bank + total DRAM size - sizeof(uboot), which in the setup where
* each DRAM bank contains 512MiB of DRAM would result in placing
* U-Boot into invalid memory area close to the end of the first
* DRAM bank.
*/
return get_ram_size((void *)PHYS_SDRAM_1, 1 << 30);
}
int dram_init(void)
{
gd->ram_size = get_ram_size((void *)PHYS_SDRAM_1, 1 << 30);
gd->ram_size += get_ram_size((void *)PHYS_SDRAM_2, 1 << 30);
return 0;
}
int dram_init_banksize(void)
{
gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
gd->bd->bi_dram[0].size = get_ram_size((void *)PHYS_SDRAM_1, 1 << 30);
gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
gd->bd->bi_dram[1].size = get_ram_size((void *)PHYS_SDRAM_2, 1 << 30);
return 0;
}

35
board/beckhoff/mx53cx9020/mx53cx9020.c
View file

@ -59,41 +59,6 @@ static const u32 CCAT_MODE_RUN = 0x0033DC8F;
DECLARE_GLOBAL_DATA_PTR;
phys_size_t get_effective_memsize(void)
{
/*
* WARNING: We must override get_effective_memsize() function here
* to report only the size of the first DRAM bank. This is to make
* U-Boot relocator place U-Boot into valid memory, that is, at the
* end of the first DRAM bank. If we did not override this function
* like so, U-Boot would be placed at the address of the first DRAM
* bank + total DRAM size - sizeof(uboot), which in the setup where
* each DRAM bank contains 512MiB of DRAM would result in placing
* U-Boot into invalid memory area close to the end of the first
* DRAM bank.
*/
return get_ram_size((void *)PHYS_SDRAM_1, 1 << 30);
}
int dram_init(void)
{
gd->ram_size = get_ram_size((void *)PHYS_SDRAM_1, 1 << 30);
gd->ram_size += get_ram_size((void *)PHYS_SDRAM_2, 1 << 30);
return 0;
}
int dram_init_banksize(void)
{
gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
gd->bd->bi_dram[0].size = get_ram_size((void *)PHYS_SDRAM_1, 1 << 30);
gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
gd->bd->bi_dram[1].size = get_ram_size((void *)PHYS_SDRAM_2, 1 << 30);
return 0;
}
u32 get_board_rev(void)
{
struct iim_regs *iim = (struct iim_regs *)IMX_IIM_BASE;