mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-06-09 23:36:03 +09:00
83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
106 lines
2.2 KiB
C
106 lines
2.2 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2013 Soren Brinkmann <soren.brinkmann@xilinx.com>
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* Copyright (C) 2013 Xilinx, Inc. All rights reserved.
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*/
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#include <clk.h>
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#include <common.h>
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#include <dm.h>
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#include <asm/arch/clk.h>
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DECLARE_GLOBAL_DATA_PTR;
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static const char * const clk_names[clk_max] = {
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"armpll", "ddrpll", "iopll",
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"cpu_6or4x", "cpu_3or2x", "cpu_2x", "cpu_1x",
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"ddr2x", "ddr3x", "dci",
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"lqspi", "smc", "pcap", "gem0", "gem1",
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"fclk0", "fclk1", "fclk2", "fclk3", "can0", "can1",
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"sdio0", "sdio1", "uart0", "uart1", "spi0", "spi1", "dma",
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"usb0_aper", "usb1_aper", "gem0_aper", "gem1_aper",
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"sdio0_aper", "sdio1_aper", "spi0_aper", "spi1_aper",
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"can0_aper", "can1_aper", "i2c0_aper", "i2c1_aper",
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"uart0_aper", "uart1_aper", "gpio_aper", "lqspi_aper",
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"smc_aper", "swdt", "dbg_trc", "dbg_apb"
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};
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/**
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* set_cpu_clk_info() - Setup clock information
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*
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* This function is called from common code after relocation and sets up the
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* clock information.
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*/
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int set_cpu_clk_info(void)
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{
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struct clk clk;
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struct udevice *dev;
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ulong rate;
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int i, ret;
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ret = uclass_get_device_by_driver(UCLASS_CLK,
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DM_GET_DRIVER(zynq_clk), &dev);
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if (ret)
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return ret;
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for (i = 0; i < 2; i++) {
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clk.id = i ? ddr3x_clk : cpu_6or4x_clk;
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ret = clk_request(dev, &clk);
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if (ret < 0)
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return ret;
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rate = clk_get_rate(&clk) / 1000000;
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if (i)
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gd->bd->bi_ddr_freq = rate;
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else
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gd->bd->bi_arm_freq = rate;
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clk_free(&clk);
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}
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gd->bd->bi_dsp_freq = 0;
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return 0;
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}
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/**
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* soc_clk_dump() - Print clock frequencies
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* Returns zero on success
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*
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* Implementation for the clk dump command.
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*/
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int soc_clk_dump(void)
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{
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struct udevice *dev;
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int i, ret;
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ret = uclass_get_device_by_driver(UCLASS_CLK,
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DM_GET_DRIVER(zynq_clk), &dev);
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if (ret)
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return ret;
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printf("clk\t\tfrequency\n");
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for (i = 0; i < clk_max; i++) {
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const char *name = clk_names[i];
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if (name) {
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struct clk clk;
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unsigned long rate;
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clk.id = i;
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ret = clk_request(dev, &clk);
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if (ret < 0)
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return ret;
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rate = clk_get_rate(&clk);
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clk_free(&clk);
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if ((rate == (unsigned long)-ENOSYS) ||
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(rate == (unsigned long)-ENXIO))
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printf("%10s%20s\n", name, "unknown");
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else
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printf("%10s%20lu\n", name, rate);
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}
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}
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return 0;
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}
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