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// 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_s10.h>
#include <asm/arch/system_manager.h>
static const struct socfpga_system_manager *sysmgr_regs =
(struct socfpga_system_manager *)SOCFPGA_SYSMGR_ADDRESS;
const struct cm_config * const cm_get_default_config(void)
{
struct cm_config *cm_handoff_cfg = (struct cm_config *)
(S10_HANDOFF_CLOCK + S10_HANDOFF_OFFSET_DATA);
u32 *conversion = (u32 *)cm_handoff_cfg;
u32 i;
u32 handoff_clk = readl(S10_HANDOFF_CLOCK);
if (swab32(handoff_clk) == S10_HANDOFF_MAGIC_CLOCK) {
writel(swab32(handoff_clk), S10_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 == S10_HANDOFF_MAGIC_CLOCK) {
return cm_handoff_cfg;
}
return NULL;
}
const unsigned int cm_get_osc_clk_hz(void)
{
#ifdef CONFIG_SPL_BUILD
u32 clock = readl(S10_HANDOFF_CLOCK_OSC);
writel(clock, &sysmgr_regs->boot_scratch_cold1);
#endif
return readl(&sysmgr_regs->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(S10_HANDOFF_CLOCK_FPGA);
writel(clock, &sysmgr_regs->boot_scratch_cold2);
#endif
return readl(&sysmgr_regs->boot_scratch_cold2);
}
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