mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-18 18:59:44 +00:00
4e3d84066e
This does not have much impact on behavior, but makes code look more more like Linux. The use of devm_ioremap() often helps to delete .remove callbacks entirely. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
40 lines
866 B
C
40 lines
866 B
C
/*
|
|
* Initialization of ARM Corelink CCI-500 Cache Coherency Interconnect
|
|
*
|
|
* Copyright (C) 2016 Socionext Inc.
|
|
* Author: Masahiro Yamada <yamada.masahiro@socionext.com>
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#include <linux/bitops.h>
|
|
#include <linux/io.h>
|
|
#include <linux/sizes.h>
|
|
|
|
#define CCI500_BASE 0x5FD00000
|
|
#define CCI500_SLAVE_OFFSET 0x1000
|
|
|
|
#define CCI500_SNOOP_CTRL
|
|
#define CCI500_SNOOP_CTRL_EN_DVM BIT(1)
|
|
#define CCI500_SNOOP_CTRL_EN_SNOOP BIT(0)
|
|
|
|
void cci500_init(unsigned int nr_slaves)
|
|
{
|
|
unsigned long slave_base = CCI500_BASE + CCI500_SLAVE_OFFSET;
|
|
int i;
|
|
|
|
for (i = 0; i < nr_slaves; i++) {
|
|
void __iomem *base;
|
|
u32 tmp;
|
|
|
|
base = ioremap(slave_base, SZ_4K);
|
|
|
|
tmp = readl(base);
|
|
tmp |= CCI500_SNOOP_CTRL_EN_DVM | CCI500_SNOOP_CTRL_EN_SNOOP;
|
|
writel(tmp, base);
|
|
|
|
iounmap(base);
|
|
|
|
slave_base += CCI500_SLAVE_OFFSET;
|
|
}
|
|
}
|