linux_dsm_epyc7002/arch/arm/plat-samsung/pm-debug.c
Arnd Bergmann dbd6fefb59 ARM: samsung: make pm-debug platform independent
The pm-debug code is one of the few things shared between
s3c24xx/s3c64xx and the newer s5pv210. In order to make s5pv210
independent of plat-samsung, change the common bits of this code to no
longer reference the s3c specific bits.

In particular, all the CPU checks need to be moved out of the common
code into platform specific files.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20200806182059.2431-12-krzk@kernel.org
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-08-19 21:10:50 +02:00

81 lines
2.0 KiB
C

// SPDX-License-Identifier: GPL-2.0
//
// Copyright (C) 2013 Samsung Electronics Co., Ltd.
// Tomasz Figa <t.figa@samsung.com>
// Copyright (C) 2008 Openmoko, Inc.
// Copyright (C) 2004-2008 Simtec Electronics
// Ben Dooks <ben@simtec.co.uk>
// http://armlinux.simtec.co.uk/
//
// Samsung common power management (suspend to RAM) debug support
#include <linux/serial_core.h>
#include <linux/serial_s3c.h>
#include <linux/io.h>
#include <asm/mach/map.h>
#include <plat/cpu.h>
#include <plat/pm-common.h>
static struct pm_uart_save uart_save;
extern void printascii(const char *);
void s3c_pm_dbg(const char *fmt, ...)
{
va_list va;
char buff[256];
va_start(va, fmt);
vsnprintf(buff, sizeof(buff), fmt, va);
va_end(va);
printascii(buff);
}
static inline void __iomem *s3c_pm_uart_base(void)
{
unsigned long paddr;
unsigned long vaddr;
debug_ll_addr(&paddr, &vaddr);
return (void __iomem *)vaddr;
}
void s3c_pm_save_uarts(bool is_s3c2410)
{
void __iomem *regs = s3c_pm_uart_base();
struct pm_uart_save *save = &uart_save;
save->ulcon = __raw_readl(regs + S3C2410_ULCON);
save->ucon = __raw_readl(regs + S3C2410_UCON);
save->ufcon = __raw_readl(regs + S3C2410_UFCON);
save->umcon = __raw_readl(regs + S3C2410_UMCON);
save->ubrdiv = __raw_readl(regs + S3C2410_UBRDIV);
if (!is_s3c2410)
save->udivslot = __raw_readl(regs + S3C2443_DIVSLOT);
S3C_PMDBG("UART[%p]: ULCON=%04x, UCON=%04x, UFCON=%04x, UBRDIV=%04x\n",
regs, save->ulcon, save->ucon, save->ufcon, save->ubrdiv);
}
void s3c_pm_restore_uarts(bool is_s3c2410)
{
void __iomem *regs = s3c_pm_uart_base();
struct pm_uart_save *save = &uart_save;
s3c_pm_arch_update_uart(regs, save);
__raw_writel(save->ulcon, regs + S3C2410_ULCON);
__raw_writel(save->ucon, regs + S3C2410_UCON);
__raw_writel(save->ufcon, regs + S3C2410_UFCON);
__raw_writel(save->umcon, regs + S3C2410_UMCON);
__raw_writel(save->ubrdiv, regs + S3C2410_UBRDIV);
if (!is_s3c2410)
__raw_writel(save->udivslot, regs + S3C2443_DIVSLOT);
}