diff options
Diffstat (limited to 'roms/u-boot/arch/arm/mach-socfpga/wrap_pll_config_soc64.c')
-rw-r--r-- | roms/u-boot/arch/arm/mach-socfpga/wrap_pll_config_soc64.c | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/roms/u-boot/arch/arm/mach-socfpga/wrap_pll_config_soc64.c b/roms/u-boot/arch/arm/mach-socfpga/wrap_pll_config_soc64.c new file mode 100644 index 000000000..6a0d6b5ea --- /dev/null +++ b/roms/u-boot/arch/arm/mach-socfpga/wrap_pll_config_soc64.c @@ -0,0 +1,62 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2016-2018 Intel Corporation <www.intel.com> + * + */ + +#include <common.h> +#include <asm/arch/clock_manager.h> +#include <asm/io.h> +#include <asm/arch/handoff_soc64.h> +#include <asm/arch/system_manager.h> + +const struct cm_config * const cm_get_default_config(void) +{ +#ifdef CONFIG_SPL_BUILD + struct cm_config *cm_handoff_cfg = (struct cm_config *) + (SOC64_HANDOFF_CLOCK + SOC64_HANDOFF_OFFSET_DATA); + u32 *conversion = (u32 *)cm_handoff_cfg; + u32 i; + u32 handoff_clk = readl(SOC64_HANDOFF_CLOCK); + + if (swab32(handoff_clk) == SOC64_HANDOFF_MAGIC_CLOCK) { + writel(swab32(handoff_clk), SOC64_HANDOFF_CLOCK); + for (i = 0; i < (sizeof(*cm_handoff_cfg) / sizeof(u32)); i++) + conversion[i] = swab32(conversion[i]); + return cm_handoff_cfg; + } else if (handoff_clk == SOC64_HANDOFF_MAGIC_CLOCK) { + return cm_handoff_cfg; + } +#endif + return NULL; +} + +const unsigned int cm_get_osc_clk_hz(void) +{ +#ifdef CONFIG_SPL_BUILD + + u32 clock = readl(SOC64_HANDOFF_CLOCK_OSC); + + writel(clock, + socfpga_get_sysmgr_addr() + SYSMGR_SOC64_BOOT_SCRATCH_COLD1); +#endif + return readl(socfpga_get_sysmgr_addr() + + SYSMGR_SOC64_BOOT_SCRATCH_COLD1); +} + +const unsigned int cm_get_intosc_clk_hz(void) +{ + return CLKMGR_INTOSC_HZ; +} + +const unsigned int cm_get_fpga_clk_hz(void) +{ +#ifdef CONFIG_SPL_BUILD + u32 clock = readl(SOC64_HANDOFF_CLOCK_FPGA); + + writel(clock, + socfpga_get_sysmgr_addr() + SYSMGR_SOC64_BOOT_SCRATCH_COLD2); +#endif + return readl(socfpga_get_sysmgr_addr() + + SYSMGR_SOC64_BOOT_SCRATCH_COLD2); +} |