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https://github.com/brain-hackers/u-boot-brain
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87e460c304
This patch provides code to implement the CCF clock tree in sandbox. It uses all the introduced primitives; some generic ones are reused, some sandbox specific were developed. In that way (after introducing the real CCF tree in sandbox) the recently added to clk-uclass.c: clk_get_by_id() and clk_get_parent_rate() are tested in their natural work environment. Usage (sandbox_defconfig and sandbox_flattree_defconfig): ./u-boot --fdt arch/sandbox/dts/test.dtb --command "ut dm clk_ccf" Signed-off-by: Lukasz Majewski <lukma@denx.de>
63 lines
1.5 KiB
C
63 lines
1.5 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2019
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* Lukasz Majewski, DENX Software Engineering, lukma@denx.de
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*/
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#include <common.h>
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#include <clk.h>
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#include <dm.h>
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#include <asm/clk.h>
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#include <dm/test.h>
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#include <dm/uclass.h>
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#include <linux/err.h>
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#include <test/ut.h>
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#include <sandbox-clk.h>
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/* Tests for Common Clock Framework driver */
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static int dm_test_clk_ccf(struct unit_test_state *uts)
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{
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struct clk *clk, *pclk;
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struct udevice *dev;
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long long rate;
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int ret;
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/* Get the device using the clk device */
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ut_assertok(uclass_get_device_by_name(UCLASS_CLK, "clk-ccf", &dev));
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/* Test for clk_get_by_id() */
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ret = clk_get_by_id(SANDBOX_CLK_ECSPI_ROOT, &clk);
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ut_assertok(ret);
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ut_asserteq_str("ecspi_root", clk->dev->name);
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/* Test for clk_get_parent_rate() */
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ret = clk_get_by_id(SANDBOX_CLK_ECSPI1, &clk);
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ut_assertok(ret);
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ut_asserteq_str("ecspi1", clk->dev->name);
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rate = clk_get_parent_rate(clk);
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ut_asserteq(rate, 20000000);
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/* Test the mux of CCF */
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ret = clk_get_by_id(SANDBOX_CLK_USDHC1_SEL, &clk);
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ut_assertok(ret);
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ut_asserteq_str("usdhc1_sel", clk->dev->name);
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rate = clk_get_parent_rate(clk);
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ut_asserteq(rate, 60000000);
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ret = clk_get_by_id(SANDBOX_CLK_USDHC2_SEL, &clk);
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ut_assertok(ret);
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ut_asserteq_str("usdhc2_sel", clk->dev->name);
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rate = clk_get_parent_rate(clk);
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ut_asserteq(rate, 80000000);
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pclk = clk_get_parent(clk);
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ut_asserteq_str("pll3_80m", pclk->dev->name);
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return 1;
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}
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DM_TEST(dm_test_clk_ccf, DM_TESTF_SCAN_FDT);
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