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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 <log.h>
- #include <malloc.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_DRIVER_GET(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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