mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-06-09 23:36:03 +09:00
401d1c4f5d
Move this out of the common header and include it only where needed. In a number of cases this requires adding "struct udevice;" to avoid adding another large header or in other cases replacing / adding missing header files that had been pulled in, very indirectly. Finally, we have a few cases where we did not need to include <asm/global_data.h> at all, so remove that include. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Rini <trini@konsulko.com>
94 lines
1.8 KiB
C
94 lines
1.8 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Renesas RZ/A1 R7S72100 OSTM Timer driver
|
|
*
|
|
* Copyright (C) 2019 Marek Vasut <marek.vasut@gmail.com>
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <malloc.h>
|
|
#include <asm/global_data.h>
|
|
#include <asm/io.h>
|
|
#include <dm.h>
|
|
#include <clk.h>
|
|
#include <timer.h>
|
|
#include <linux/bitops.h>
|
|
|
|
#define OSTM_CMP 0x00
|
|
#define OSTM_CNT 0x04
|
|
#define OSTM_TE 0x10
|
|
#define OSTM_TS 0x14
|
|
#define OSTM_TT 0x18
|
|
#define OSTM_CTL 0x20
|
|
#define OSTM_CTL_D BIT(1)
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
struct ostm_priv {
|
|
fdt_addr_t regs;
|
|
};
|
|
|
|
static u64 ostm_get_count(struct udevice *dev)
|
|
{
|
|
struct ostm_priv *priv = dev_get_priv(dev);
|
|
|
|
return timer_conv_64(readl(priv->regs + OSTM_CNT));
|
|
}
|
|
|
|
static int ostm_probe(struct udevice *dev)
|
|
{
|
|
struct timer_dev_priv *uc_priv = dev_get_uclass_priv(dev);
|
|
struct ostm_priv *priv = dev_get_priv(dev);
|
|
#if CONFIG_IS_ENABLED(CLK)
|
|
struct clk clk;
|
|
int ret;
|
|
|
|
ret = clk_get_by_index(dev, 0, &clk);
|
|
if (ret)
|
|
return ret;
|
|
|
|
uc_priv->clock_rate = clk_get_rate(&clk);
|
|
|
|
clk_free(&clk);
|
|
#else
|
|
uc_priv->clock_rate = CONFIG_SYS_CLK_FREQ / 2;
|
|
#endif
|
|
|
|
readb(priv->regs + OSTM_CTL);
|
|
writeb(OSTM_CTL_D, priv->regs + OSTM_CTL);
|
|
|
|
setbits_8(priv->regs + OSTM_TT, BIT(0));
|
|
writel(0xffffffff, priv->regs + OSTM_CMP);
|
|
setbits_8(priv->regs + OSTM_TS, BIT(0));
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ostm_of_to_plat(struct udevice *dev)
|
|
{
|
|
struct ostm_priv *priv = dev_get_priv(dev);
|
|
|
|
priv->regs = dev_read_addr(dev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct timer_ops ostm_ops = {
|
|
.get_count = ostm_get_count,
|
|
};
|
|
|
|
static const struct udevice_id ostm_ids[] = {
|
|
{ .compatible = "renesas,ostm" },
|
|
{}
|
|
};
|
|
|
|
U_BOOT_DRIVER(ostm_timer) = {
|
|
.name = "ostm-timer",
|
|
.id = UCLASS_TIMER,
|
|
.ops = &ostm_ops,
|
|
.probe = ostm_probe,
|
|
.of_match = ostm_ids,
|
|
.of_to_plat = ostm_of_to_plat,
|
|
.priv_auto = sizeof(struct ostm_priv),
|
|
};
|