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power: reset: at91-reset: introduce struct at91_reset

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Introduce struct at91_reset intended to keep all the at91 reset controller
data.

Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
This commit is contained in:
Claudiu.Beznea@microchip.com 2020-01-21 10:03:29 +00:00 committed by Sebastian Reichel
parent 9c80662a74
commit b2a16610f2
1 changed files with 17 additions and 9 deletions
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26
drivers/power/reset/at91-reset.c
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@ -49,7 +49,13 @@ enum reset_type {
RESET_TYPE_ULP2 = 8,
};
static void __iomem *at91_ramc_base[2], *at91_rstc_base;
struct at91_reset {
void __iomem *rstc_base;
};
static struct at91_reset reset;
static void __iomem *at91_ramc_base[2];
static struct clk *sclk;
/*
@ -76,7 +82,7 @@ static int at91sam9260_restart(struct notifier_block *this, unsigned long mode,
"b .\n\t"
:
: "r" (at91_ramc_base[0]),
"r" (at91_rstc_base),
"r" (reset.rstc_base),
"r" (1),
"r" cpu_to_le32(AT91_SDRAMC_LPCB_POWER_DOWN),
"r" cpu_to_le32(AT91_RSTC_KEY | AT91_RSTC_PERRST | AT91_RSTC_PROCRST));
@ -119,7 +125,7 @@ static int at91sam9g45_restart(struct notifier_block *this, unsigned long mode,
:
: "r" (at91_ramc_base[0]),
"r" (at91_ramc_base[1]),
"r" (at91_rstc_base),
"r" (reset.rstc_base),
"r" (1),
"r" cpu_to_le32(AT91_DDRSDRC_LPCB_POWER_DOWN),
"r" cpu_to_le32(AT91_RSTC_KEY | AT91_RSTC_PERRST | AT91_RSTC_PROCRST)
@ -131,8 +137,8 @@ static int at91sam9g45_restart(struct notifier_block *this, unsigned long mode,
static int sama5d3_restart(struct notifier_block *this, unsigned long mode,
void *cmd)
{
writel(AT91_RSTC_KEY | AT91_RSTC_PERRST | AT91_RSTC_PROCRST,
at91_rstc_base);
writel(cpu_to_le32(AT91_RSTC_KEY | AT91_RSTC_PERRST | AT91_RSTC_PROCRST),
reset.rstc_base);
return NOTIFY_DONE;
}
@ -140,14 +146,16 @@ static int sama5d3_restart(struct notifier_block *this, unsigned long mode,
static int samx7_restart(struct notifier_block *this, unsigned long mode,
void *cmd)
{
writel(AT91_RSTC_KEY | AT91_RSTC_PROCRST, at91_rstc_base);
writel(cpu_to_le32(AT91_RSTC_KEY | AT91_RSTC_PROCRST),
reset.rstc_base);
return NOTIFY_DONE;
}
static void __init at91_reset_status(struct platform_device *pdev)
{
const char *reason;
u32 reg = readl(at91_rstc_base + AT91_RSTC_SR);
u32 reg = readl(reset.rstc_base + AT91_RSTC_SR);
switch ((reg & AT91_RSTC_RSTTYP) >> 8) {
case RESET_TYPE_GENERAL:
@ -208,8 +216,8 @@ static int __init at91_reset_probe(struct platform_device *pdev)
struct device_node *np;
int ret, idx = 0;
at91_rstc_base = of_iomap(pdev->dev.of_node, 0);
if (!at91_rstc_base) {
reset.rstc_base = of_iomap(pdev->dev.of_node, 0);
if (!reset.rstc_base) {
dev_err(&pdev->dev, "Could not map reset controller address\n");
return -ENODEV;
}