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// SPDX-License-Identifier: GPL-2.0
/*
* Copyright 2018 NXP
* Peng Fan <peng.fan@nxp.com>
*/
#include <common.h>
#include <clk-uclass.h>
#include <dm.h>
#include <asm/arch/sci/sci.h>
#include <asm/arch/clock.h>
#include <dt-bindings/clock/imx8qxp-clock.h>
#include <dt-bindings/soc/imx_rsrc.h>
#include <misc.h>
#include "clk-imx8.h"
__weak ulong imx8_clk_get_rate(struct clk *clk)
{
return 0;
}
__weak ulong imx8_clk_set_rate(struct clk *clk, unsigned long rate)
{
return 0;
}
__weak int __imx8_clk_enable(struct clk *clk, bool enable)
{
return -ENOTSUPP;
}
static int imx8_clk_disable(struct clk *clk)
{
return __imx8_clk_enable(clk, 0);
}
static int imx8_clk_enable(struct clk *clk)
{
return __imx8_clk_enable(clk, 1);
}
#if CONFIG_IS_ENABLED(CMD_CLK)
int soc_clk_dump(void)
{
struct udevice *dev;
struct clk clk;
unsigned long rate;
int i, ret;
ret = uclass_get_device_by_driver(UCLASS_CLK,
DM_GET_DRIVER(imx8_clk), &dev);
if (ret)
return ret;
printf("Clk\t\tHz\n");
for (i = 0; i < num_clks; i++) {
clk.id = imx8_clk_names[i].id;
ret = clk_request(dev, &clk);
if (ret < 0) {
debug("%s clk_request() failed: %d\n", __func__, ret);
continue;
}
ret = clk_get_rate(&clk);
rate = ret;
clk_free(&clk);
if (ret == -ENOTSUPP) {
printf("clk ID %lu not supported yet\n",
imx8_clk_names[i].id);
continue;
}
if (ret < 0) {
printf("%s %lu: get_rate err: %d\n",
__func__, imx8_clk_names[i].id, ret);
continue;
}
printf("%s(%3lu):\t%lu\n",
imx8_clk_names[i].name, imx8_clk_names[i].id, rate);
}
return 0;
}
#endif
static struct clk_ops imx8_clk_ops = {
.set_rate = imx8_clk_set_rate,
.get_rate = imx8_clk_get_rate,
.enable = imx8_clk_enable,
.disable = imx8_clk_disable,
};
static int imx8_clk_probe(struct udevice *dev)
{
return 0;
}
static const struct udevice_id imx8_clk_ids[] = {
{ .compatible = "fsl,imx8qxp-clk" },
{ .compatible = "fsl,imx8qm-clk" },
{ },
};
U_BOOT_DRIVER(imx8_clk) = {
.name = "clk_imx8",
.id = UCLASS_CLK,
.of_match = imx8_clk_ids,
.ops = &imx8_clk_ops,
.probe = imx8_clk_probe,
.flags = DM_FLAG_PRE_RELOC,
};
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