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- // SPDX-License-Identifier: GPL-2.0+
- /*
- * Copyright (C) 2013 Soren Brinkmann <soren.brinkmann@xilinx.com>
- * Copyright (C) 2013 Xilinx, Inc. All rights reserved.
- */
- #include <clk.h>
- #include <common.h>
- #include <dm.h>
- #include <asm/arch/clk.h>
- DECLARE_GLOBAL_DATA_PTR;
- static const char * const clk_names[clk_max] = {
- "armpll", "ddrpll", "iopll",
- "cpu_6or4x", "cpu_3or2x", "cpu_2x", "cpu_1x",
- "ddr2x", "ddr3x", "dci",
- "lqspi", "smc", "pcap", "gem0", "gem1",
- "fclk0", "fclk1", "fclk2", "fclk3", "can0", "can1",
- "sdio0", "sdio1", "uart0", "uart1", "spi0", "spi1", "dma",
- "usb0_aper", "usb1_aper", "gem0_aper", "gem1_aper",
- "sdio0_aper", "sdio1_aper", "spi0_aper", "spi1_aper",
- "can0_aper", "can1_aper", "i2c0_aper", "i2c1_aper",
- "uart0_aper", "uart1_aper", "gpio_aper", "lqspi_aper",
- "smc_aper", "swdt", "dbg_trc", "dbg_apb"
- };
- /**
- * set_cpu_clk_info() - Setup clock information
- *
- * This function is called from common code after relocation and sets up the
- * clock information.
- */
- int set_cpu_clk_info(void)
- {
- struct clk clk;
- struct udevice *dev;
- ulong rate;
- int i, ret;
- ret = uclass_get_device_by_driver(UCLASS_CLK,
- DM_GET_DRIVER(zynq_clk), &dev);
- if (ret)
- return ret;
- for (i = 0; i < 2; i++) {
- clk.id = i ? ddr3x_clk : cpu_6or4x_clk;
- ret = clk_request(dev, &clk);
- if (ret < 0)
- return ret;
- rate = clk_get_rate(&clk) / 1000000;
- if (i)
- gd->bd->bi_ddr_freq = rate;
- else
- gd->bd->bi_arm_freq = rate;
- clk_free(&clk);
- }
- gd->bd->bi_dsp_freq = 0;
- return 0;
- }
- /**
- * soc_clk_dump() - Print clock frequencies
- * Returns zero on success
- *
- * Implementation for the clk dump command.
- */
- int soc_clk_dump(void)
- {
- struct udevice *dev;
- int i, ret;
- ret = uclass_get_device_by_driver(UCLASS_CLK,
- DM_GET_DRIVER(zynq_clk), &dev);
- if (ret)
- return ret;
- printf("clk\t\tfrequency\n");
- for (i = 0; i < clk_max; i++) {
- const char *name = clk_names[i];
- if (name) {
- struct clk clk;
- unsigned long rate;
- clk.id = i;
- ret = clk_request(dev, &clk);
- if (ret < 0)
- return ret;
- rate = clk_get_rate(&clk);
- clk_free(&clk);
- if ((rate == (unsigned long)-ENOSYS) ||
- (rate == (unsigned long)-ENXIO))
- printf("%10s%20s\n", name, "unknown");
- else
- printf("%10s%20lu\n", name, rate);
- }
- }
- return 0;
- }
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