diff options
Diffstat (limited to 'drivers/clk/clk_zynq.c')
| -rw-r--r-- | drivers/clk/clk_zynq.c | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/drivers/clk/clk_zynq.c b/drivers/clk/clk_zynq.c index e80500e382b..be5226175f9 100644 --- a/drivers/clk/clk_zynq.c +++ b/drivers/clk/clk_zynq.c @@ -454,6 +454,64 @@ static int dummy_enable(struct clk *clk) return 0; } +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" +}; + +/** + * 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_DRIVER_GET(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; +} + static struct clk_ops zynq_clk_ops = { .get_rate = zynq_clk_get_rate, #ifndef CONFIG_SPL_BUILD |