1 /***********************license start***********************************
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38 ***********************license end**************************************/
39 #include <bdk.h>
40 #include <libbdk-arch/bdk-csrs-gti.h>
41 #include <libbdk-arch/bdk-csrs-ocx.h>
42 #include <libbdk-hal/bdk-clock.h>
43 #include <libbdk-arch/bdk-csrs-rst.h>
44
45 /**
46 * Get cycle count based on the clock type.
47 *
48 * @param clock - Enumeration of the clock type.
49 * @return - Get the number of cycles executed so far.
50 */
__bdk_clock_get_count_slow(bdk_clock_t clock)51 uint64_t __bdk_clock_get_count_slow(bdk_clock_t clock)
52 {
53 bdk_node_t node = bdk_numa_local();
54 BDK_CSR_INIT(rst_boot, node, BDK_RST_BOOT);
55 uint64_t ref_cntr = BDK_CSR_READ(node, BDK_RST_REF_CNTR);
56 switch(clock)
57 {
58 case BDK_CLOCK_TIME:
59 return 0; /* Handled in fast path */
60 case BDK_CLOCK_MAIN_REF:
61 return ref_cntr;
62 case BDK_CLOCK_RCLK:
63 return ref_cntr * rst_boot.s.c_mul;
64 case BDK_CLOCK_SCLK:
65 return ref_cntr * rst_boot.s.pnr_mul;
66 }
67 return 0;
68 }
69
70 /**
71 * Get clock rate based on the clock type.
72 *
73 * @param node Node to use in a Numa setup. Can be an exact ID or a special value.
74 * @param clock - Enumeration of the clock type.
75 * @return - return the clock rate.
76 */
__bdk_clock_get_rate_slow(bdk_node_t node,bdk_clock_t clock)77 uint64_t __bdk_clock_get_rate_slow(bdk_node_t node, bdk_clock_t clock)
78 {
79 /* This is currently defined to be 50Mhz */
80 const uint64_t REF_CLOCK = 50000000;
81
82 BDK_CSR_INIT(mio_rst_boot, node, BDK_RST_BOOT);
83 switch (clock)
84 {
85 case BDK_CLOCK_TIME:
86 return BDK_GTI_RATE; /* Programed as part of setup */
87 case BDK_CLOCK_MAIN_REF:
88 return REF_CLOCK;
89 case BDK_CLOCK_RCLK:
90 return REF_CLOCK * mio_rst_boot.s.c_mul;
91 case BDK_CLOCK_SCLK:
92 return REF_CLOCK * mio_rst_boot.s.pnr_mul;
93 }
94 return 0;
95 }
96
97