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- // SPDX-License-Identifier: GPL-2.0+
- /*
- * (C) Copyright 2019
- * Alex Marginean, NXP
- */
- #include <common.h>
- #include <dm.h>
- #include <dm/test.h>
- #include <misc.h>
- #include <test/ut.h>
- #include <miiphy.h>
- /* macros copied over from mdio_sandbox.c */
- #define SANDBOX_PHY_ADDR 5
- #define SANDBOX_PHY_REG_CNT 2
- #define TEST_REG_VALUE 0xabcd
- static int dm_test_mdio_mux(struct unit_test_state *uts)
- {
- struct uclass *uc;
- struct udevice *mux;
- struct udevice *mdio_ch0, *mdio_ch1, *mdio;
- struct mdio_ops *ops, *ops_parent;
- struct mdio_mux_ops *mmops;
- u16 reg;
- ut_assertok(uclass_get(UCLASS_MDIO_MUX, &uc));
- ut_assertok(uclass_get_device_by_name(UCLASS_MDIO_MUX, "mdio-mux-test",
- &mux));
- ut_assertok(uclass_get_device_by_name(UCLASS_MDIO, "mdio-ch-test@0",
- &mdio_ch0));
- ut_assertok(uclass_get_device_by_name(UCLASS_MDIO, "mdio-ch-test@1",
- &mdio_ch1));
- ut_assertok(uclass_get_device_by_name(UCLASS_MDIO, "mdio-test", &mdio));
- ops = mdio_get_ops(mdio_ch0);
- ut_assertnonnull(ops);
- ut_assertnonnull(ops->read);
- ut_assertnonnull(ops->write);
- mmops = mdio_mux_get_ops(mux);
- ut_assertnonnull(mmops);
- ut_assertnonnull(mmops->select);
- ops_parent = mdio_get_ops(mdio);
- ut_assertnonnull(ops);
- ut_assertnonnull(ops->read);
- /*
- * mux driver sets last register on the emulated PHY whenever a group
- * is selected to the selection #. Just reading that register from
- * either of the child buses should return the id of the child bus
- */
- reg = ops->read(mdio_ch0, SANDBOX_PHY_ADDR, MDIO_DEVAD_NONE,
- SANDBOX_PHY_REG_CNT - 1);
- ut_asserteq(reg, 0);
- reg = ops->read(mdio_ch1, SANDBOX_PHY_ADDR, MDIO_DEVAD_NONE,
- SANDBOX_PHY_REG_CNT - 1);
- ut_asserteq(reg, 1);
- mmops->select(mux, MDIO_MUX_SELECT_NONE, 5);
- reg = ops_parent->read(mdio, SANDBOX_PHY_ADDR, MDIO_DEVAD_NONE,
- SANDBOX_PHY_REG_CNT - 1);
- ut_asserteq(reg, 5);
- mmops->deselect(mux, 5);
- reg = ops_parent->read(mdio, SANDBOX_PHY_ADDR, MDIO_DEVAD_NONE,
- SANDBOX_PHY_REG_CNT - 1);
- ut_asserteq(reg, (u16)MDIO_MUX_SELECT_NONE);
- return 0;
- }
- DM_TEST(dm_test_mdio_mux, DM_TESTF_SCAN_FDT);
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