xref: /openbmc/u-boot/test/dm/clk.c (revision 85ab0452)
1 /*
2  * Copyright (C) 2015 Google, Inc
3  *
4  * SPDX-License-Identifier:	GPL-2.0+
5  */
6 
7 #include <common.h>
8 #include <dm.h>
9 #include <asm/clk.h>
10 #include <dm/test.h>
11 #include <linux/err.h>
12 #include <test/ut.h>
13 
14 static int dm_test_clk(struct unit_test_state *uts)
15 {
16 	struct udevice *dev_fixed, *dev_clk, *dev_test;
17 	ulong rate;
18 
19 	ut_assertok(uclass_get_device_by_name(UCLASS_CLK, "clk-fixed",
20 					      &dev_fixed));
21 
22 	ut_assertok(uclass_get_device_by_name(UCLASS_CLK, "clk-sbox",
23 					      &dev_clk));
24 	ut_asserteq(0, sandbox_clk_query_enable(dev_clk, SANDBOX_CLK_ID_SPI));
25 	ut_asserteq(0, sandbox_clk_query_enable(dev_clk, SANDBOX_CLK_ID_I2C));
26 	ut_asserteq(0, sandbox_clk_query_rate(dev_clk, SANDBOX_CLK_ID_SPI));
27 	ut_asserteq(0, sandbox_clk_query_rate(dev_clk, SANDBOX_CLK_ID_I2C));
28 
29 	ut_assertok(uclass_get_device_by_name(UCLASS_MISC, "clk-test",
30 					      &dev_test));
31 	ut_assertok(sandbox_clk_test_get(dev_test));
32 
33 	ut_asserteq(1234,
34 		    sandbox_clk_test_get_rate(dev_test,
35 					      SANDBOX_CLK_TEST_ID_FIXED));
36 	ut_asserteq(0, sandbox_clk_test_get_rate(dev_test,
37 						 SANDBOX_CLK_TEST_ID_SPI));
38 	ut_asserteq(0, sandbox_clk_test_get_rate(dev_test,
39 						 SANDBOX_CLK_TEST_ID_I2C));
40 
41 	rate = sandbox_clk_test_set_rate(dev_test, SANDBOX_CLK_TEST_ID_FIXED,
42 					 12345);
43 	ut_assert(IS_ERR_VALUE(rate));
44 	rate = sandbox_clk_test_get_rate(dev_test, SANDBOX_CLK_TEST_ID_FIXED);
45 	ut_asserteq(1234, rate);
46 
47 	ut_asserteq(0, sandbox_clk_test_set_rate(dev_test,
48 						 SANDBOX_CLK_TEST_ID_SPI,
49 						 1000));
50 	ut_asserteq(0, sandbox_clk_test_set_rate(dev_test,
51 						 SANDBOX_CLK_TEST_ID_I2C,
52 						 2000));
53 
54 	ut_asserteq(1000, sandbox_clk_test_get_rate(dev_test,
55 						    SANDBOX_CLK_TEST_ID_SPI));
56 	ut_asserteq(2000, sandbox_clk_test_get_rate(dev_test,
57 						    SANDBOX_CLK_TEST_ID_I2C));
58 
59 	ut_asserteq(1000, sandbox_clk_test_set_rate(dev_test,
60 						    SANDBOX_CLK_TEST_ID_SPI,
61 						    10000));
62 	ut_asserteq(2000, sandbox_clk_test_set_rate(dev_test,
63 						    SANDBOX_CLK_TEST_ID_I2C,
64 						    20000));
65 
66 	rate = sandbox_clk_test_set_rate(dev_test, SANDBOX_CLK_TEST_ID_SPI, 0);
67 	ut_assert(IS_ERR_VALUE(rate));
68 	rate = sandbox_clk_test_set_rate(dev_test, SANDBOX_CLK_TEST_ID_I2C, 0);
69 	ut_assert(IS_ERR_VALUE(rate));
70 
71 	ut_asserteq(10000, sandbox_clk_test_get_rate(dev_test,
72 						     SANDBOX_CLK_TEST_ID_SPI));
73 	ut_asserteq(20000, sandbox_clk_test_get_rate(dev_test,
74 						     SANDBOX_CLK_TEST_ID_I2C));
75 
76 	ut_asserteq(0, sandbox_clk_query_enable(dev_clk, SANDBOX_CLK_ID_SPI));
77 	ut_asserteq(0, sandbox_clk_query_enable(dev_clk, SANDBOX_CLK_ID_I2C));
78 	ut_asserteq(10000, sandbox_clk_query_rate(dev_clk, SANDBOX_CLK_ID_SPI));
79 	ut_asserteq(20000, sandbox_clk_query_rate(dev_clk, SANDBOX_CLK_ID_I2C));
80 
81 	ut_assertok(sandbox_clk_test_enable(dev_test, SANDBOX_CLK_TEST_ID_SPI));
82 	ut_asserteq(1, sandbox_clk_query_enable(dev_clk, SANDBOX_CLK_ID_SPI));
83 	ut_asserteq(0, sandbox_clk_query_enable(dev_clk, SANDBOX_CLK_ID_I2C));
84 
85 	ut_assertok(sandbox_clk_test_enable(dev_test, SANDBOX_CLK_TEST_ID_I2C));
86 	ut_asserteq(1, sandbox_clk_query_enable(dev_clk, SANDBOX_CLK_ID_SPI));
87 	ut_asserteq(1, sandbox_clk_query_enable(dev_clk, SANDBOX_CLK_ID_I2C));
88 
89 	ut_assertok(sandbox_clk_test_disable(dev_test,
90 					     SANDBOX_CLK_TEST_ID_SPI));
91 	ut_asserteq(0, sandbox_clk_query_enable(dev_clk, SANDBOX_CLK_ID_SPI));
92 	ut_asserteq(1, sandbox_clk_query_enable(dev_clk, SANDBOX_CLK_ID_I2C));
93 
94 	ut_assertok(sandbox_clk_test_disable(dev_test,
95 					     SANDBOX_CLK_TEST_ID_I2C));
96 	ut_asserteq(0, sandbox_clk_query_enable(dev_clk, SANDBOX_CLK_ID_SPI));
97 	ut_asserteq(0, sandbox_clk_query_enable(dev_clk, SANDBOX_CLK_ID_I2C));
98 
99 	ut_assertok(sandbox_clk_test_free(dev_test));
100 
101 	return 0;
102 }
103 DM_TEST(dm_test_clk, DM_TESTF_SCAN_FDT);
104