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ARM64: zynqmp: Use the same U-Boot version with/without ATF
[u-boot] / arch / arm / cpu / armv8 / zynqmp / clk.c
1 /*
2  * (C) Copyright 2014 - 2015 Xilinx, Inc.
3  * Michal Simek <michal.simek@xilinx.com>
4  *
5  * SPDX-License-Identifier:     GPL-2.0+
6  */
7
8 #include <common.h>
9 #include <asm/arch/clk.h>
10 #include <asm/arch/hardware.h>
11 #include <asm/arch/sys_proto.h>
12
13 DECLARE_GLOBAL_DATA_PTR;
14
15 unsigned long get_uart_clk(int dev_id)
16 {
17         u32 ver = zynqmp_get_silicon_version();
18
19         switch (ver) {
20         case ZYNQMP_CSU_VERSION_VELOCE:
21                 return 48000;
22         case ZYNQMP_CSU_VERSION_EP108:
23                 return 25000000;
24         }
25
26         return 133000000;
27 }
28
29 unsigned long zynqmp_get_system_timer_freq(void)
30 {
31         u32 ver = zynqmp_get_silicon_version();
32
33         switch (ver) {
34         case ZYNQMP_CSU_VERSION_VELOCE:
35                 return 10000;
36         case ZYNQMP_CSU_VERSION_EP108:
37                 return 4000000;
38         case ZYNQMP_CSU_VERSION_QEMU:
39                 return 50000000;
40         }
41
42         return 100000000;
43 }
44
45 #ifdef CONFIG_CLOCKS
46 /**
47  * set_cpu_clk_info() - Initialize clock framework
48  * Always returns zero.
49  *
50  * This function is called from common code after relocation and sets up the
51  * clock framework. The framework must not be used before this function had been
52  * called.
53  */
54 int set_cpu_clk_info(void)
55 {
56         gd->cpu_clk = get_tbclk();
57
58         /* Support Veloce to show at least 1MHz via bdi */
59         if (gd->cpu_clk > 1000000)
60                 gd->bd->bi_arm_freq = gd->cpu_clk / 1000000;
61         else
62                 gd->bd->bi_arm_freq = 1;
63
64         gd->bd->bi_dsp_freq = 0;
65
66         return 0;
67 }
68 #endif