+// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2017 Weidmüller Interface GmbH & Co. KG
* Stefan Herbrechtsmeier <stefan.herbrechtsmeier@weidmueller.com>
*
* Copyright (C) 2013 Soren Brinkmann <soren.brinkmann@xilinx.com>
* Copyright (C) 2013 Xilinx, Inc. All rights reserved.
- *
- * SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
struct zynq_clk_priv {
ulong ps_clk_freq;
+#ifndef CONFIG_SPL_BUILD
+ struct clk gem_emio_clk[2];
+#endif
};
static void *zynq_clk_get_register(enum zynq_clk id)
#ifndef CONFIG_SPL_BUILD
static ulong zynq_clk_get_gem_rate(struct zynq_clk_priv *priv, enum zynq_clk id)
{
+ struct clk *parent;
+
if (zynq_clk_get_gem_rclk(id) == mio_clk)
return zynq_clk_get_peripheral_rate(priv, id, true);
+ parent = &priv->gem_emio_clk[id - gem0_clk];
+ if (parent->dev)
+ return clk_get_rate(parent);
+
debug("%s: gem%d emio rx clock source unknown\n", __func__,
id - gem0_clk);
static ulong zynq_clk_set_gem_rate(struct zynq_clk_priv *priv, enum zynq_clk id,
ulong rate)
{
+ struct clk *parent;
+
if (zynq_clk_get_gem_rclk(id) == mio_clk)
return zynq_clk_set_peripheral_rate(priv, id, rate, true);
+ parent = &priv->gem_emio_clk[id - gem0_clk];
+ if (parent->dev)
+ return clk_set_rate(parent, rate);
+
debug("%s: gem%d emio rx clock source unknown\n", __func__,
id - gem0_clk);
return zynq_clk_get_peripheral_rate(priv, id, two_divs);
case dma_clk:
return zynq_clk_get_cpu_rate(priv, cpu_2x_clk);
- case usb0_aper_clk ... smc_aper_clk:
+ case usb0_aper_clk ... swdt_clk:
return zynq_clk_get_cpu_rate(priv, cpu_1x_clk);
default:
return -ENXIO;
static int zynq_clk_probe(struct udevice *dev)
{
struct zynq_clk_priv *priv = dev_get_priv(dev);
+#ifndef CONFIG_SPL_BUILD
+ unsigned int i;
+ char name[16];
+ int ret;
+
+ for (i = 0; i < 2; i++) {
+ sprintf(name, "gem%d_emio_clk", i);
+ ret = clk_get_by_name(dev, name, &priv->gem_emio_clk[i]);
+ if (ret < 0 && ret != -ENODATA) {
+ dev_err(dev, "failed to get %s clock\n", name);
+ return ret;
+ }
+ }
+#endif
- priv->ps_clk_freq = fdtdec_get_uint(gd->fdt_blob, dev->of_offset,
+ priv->ps_clk_freq = fdtdec_get_uint(gd->fdt_blob, dev_of_offset(dev),
"ps-clk-frequency", 33333333UL);
return 0;