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- // SPDX-License-Identifier: GPL-2.0+
- /*
- * Copyright (C) 2020 Stefan Roese <sr@denx.de>
- */
- #include <clk-uclass.h>
- #include <dm.h>
- #include <dt-bindings/clock/octeon-clock.h>
- DECLARE_GLOBAL_DATA_PTR;
- struct octeon_clk_priv {
- u64 core_clk;
- u64 io_clk;
- };
- static int octeon_clk_enable(struct clk *clk)
- {
- /* Nothing to do on Octeon */
- return 0;
- }
- static ulong octeon_clk_get_rate(struct clk *clk)
- {
- struct octeon_clk_priv *priv = dev_get_priv(clk->dev);
- switch (clk->id) {
- case OCTEON_CLK_CORE:
- return priv->core_clk;
- case OCTEON_CLK_IO:
- return priv->io_clk;
- default:
- return 0;
- }
- return 0;
- }
- static struct clk_ops octeon_clk_ops = {
- .enable = octeon_clk_enable,
- .get_rate = octeon_clk_get_rate,
- };
- static const struct udevice_id octeon_clk_ids[] = {
- { .compatible = "mrvl,octeon-clk" },
- { /* sentinel */ }
- };
- static int octeon_clk_probe(struct udevice *dev)
- {
- struct octeon_clk_priv *priv = dev_get_priv(dev);
- /*
- * The clock values are already read into GD, lets just store them
- * in priv data
- */
- priv->core_clk = gd->cpu_clk;
- priv->io_clk = gd->bus_clk;
- return 0;
- }
- U_BOOT_DRIVER(clk_octeon) = {
- .name = "clk_octeon",
- .id = UCLASS_CLK,
- .of_match = octeon_clk_ids,
- .ops = &octeon_clk_ops,
- .probe = octeon_clk_probe,
- .priv_auto_alloc_size = sizeof(struct octeon_clk_priv),
- };
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