diff options
Diffstat (limited to 'arch/arm/mach-socfpga/clock_manager_agilex.c')
-rw-r--r-- | arch/arm/mach-socfpga/clock_manager_agilex.c | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/arch/arm/mach-socfpga/clock_manager_agilex.c b/arch/arm/mach-socfpga/clock_manager_agilex.c new file mode 100644 index 0000000000..791066d25b --- /dev/null +++ b/arch/arm/mach-socfpga/clock_manager_agilex.c @@ -0,0 +1,85 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2019 Intel Corporation <www.intel.com> + * + */ + +#include <clk.h> +#include <common.h> +#include <dm.h> +#include <asm/arch/clock_manager.h> +#include <asm/arch/system_manager.h> +#include <asm/io.h> +#include <dt-bindings/clock/agilex-clock.h> + +DECLARE_GLOBAL_DATA_PTR; + +static ulong cm_get_rate_dm(u32 id) +{ + struct udevice *dev; + struct clk clk; + ulong rate; + int ret; + + ret = uclass_get_device_by_driver(UCLASS_CLK, + DM_GET_DRIVER(socfpga_agilex_clk), + &dev); + if (ret) + return 0; + + clk.id = id; + ret = clk_request(dev, &clk); + if (ret < 0) + return 0; + + rate = clk_get_rate(&clk); + + clk_free(&clk); + + if ((rate == (unsigned long)-ENOSYS) || + (rate == (unsigned long)-ENXIO) || + (rate == (unsigned long)-EIO)) { + debug("%s id %u: clk_get_rate err: %ld\n", + __func__, id, rate); + return 0; + } + + return rate; +} + +static u32 cm_get_rate_dm_khz(u32 id) +{ + return cm_get_rate_dm(id) / 1000; +} + +unsigned long cm_get_mpu_clk_hz(void) +{ + return cm_get_rate_dm(AGILEX_MPU_CLK); +} + +unsigned int cm_get_l4_sys_free_clk_hz(void) +{ + return cm_get_rate_dm(AGILEX_L4_SYS_FREE_CLK); +} + +u32 cm_get_qspi_controller_clk_hz(void) +{ + return readl(socfpga_get_sysmgr_addr() + + SYSMGR_SOC64_BOOT_SCRATCH_COLD0); +} + +void cm_print_clock_quick_summary(void) +{ + printf("MPU %10d kHz\n", + cm_get_rate_dm_khz(AGILEX_MPU_CLK)); + printf("L4 Main %8d kHz\n", + cm_get_rate_dm_khz(AGILEX_L4_MAIN_CLK)); + printf("L4 sys free %8d kHz\n", + cm_get_rate_dm_khz(AGILEX_L4_SYS_FREE_CLK)); + printf("L4 MP %8d kHz\n", + cm_get_rate_dm_khz(AGILEX_L4_MP_CLK)); + printf("L4 SP %8d kHz\n", + cm_get_rate_dm_khz(AGILEX_L4_SP_CLK)); + printf("SDMMC %8d kHz\n", + cm_get_rate_dm_khz(AGILEX_SDMMC_CLK)); +} |