| Alex Marginean | c3d9f3f | 2019-07-12 10:13:53 +0300 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0+ |
| 2 | /* |
| 3 | * (C) Copyright 2019 |
| 4 | * Alex Marginean, NXP |
| 5 | */ |
| 6 | |
| 7 | #include <common.h> |
| 8 | #include <dm.h> |
| 9 | #include <dm/test.h> |
| 10 | #include <misc.h> |
| 11 | #include <test/ut.h> |
| 12 | #include <miiphy.h> |
| 13 | |
| 14 | /* macros copied over from mdio_sandbox.c */ |
| 15 | #define SANDBOX_PHY_ADDR 5 |
| 16 | #define SANDBOX_PHY_REG_CNT 2 |
| 17 | |
| 18 | #define TEST_REG_VALUE 0xabcd |
| 19 | |
| 20 | static int dm_test_mdio_mux(struct unit_test_state *uts) |
| 21 | { |
| 22 | struct uclass *uc; |
| 23 | struct udevice *mux; |
| 24 | struct udevice *mdio_ch0, *mdio_ch1, *mdio; |
| 25 | struct mdio_ops *ops, *ops_parent; |
| 26 | struct mdio_mux_ops *mmops; |
| 27 | u16 reg; |
| 28 | |
| 29 | ut_assertok(uclass_get(UCLASS_MDIO_MUX, &uc)); |
| 30 | |
| 31 | ut_assertok(uclass_get_device_by_name(UCLASS_MDIO_MUX, "mdio-mux-test", |
| 32 | &mux)); |
| 33 | |
| 34 | ut_assertok(uclass_get_device_by_name(UCLASS_MDIO, "mdio-ch-test@0", |
| 35 | &mdio_ch0)); |
| 36 | ut_assertok(uclass_get_device_by_name(UCLASS_MDIO, "mdio-ch-test@1", |
| 37 | &mdio_ch1)); |
| 38 | |
| 39 | ut_assertok(uclass_get_device_by_name(UCLASS_MDIO, "mdio-test", &mdio)); |
| 40 | |
| 41 | ops = mdio_get_ops(mdio_ch0); |
| 42 | ut_assertnonnull(ops); |
| 43 | ut_assertnonnull(ops->read); |
| 44 | ut_assertnonnull(ops->write); |
| 45 | |
| 46 | mmops = mdio_mux_get_ops(mux); |
| 47 | ut_assertnonnull(mmops); |
| 48 | ut_assertnonnull(mmops->select); |
| 49 | |
| 50 | ops_parent = mdio_get_ops(mdio); |
| 51 | ut_assertnonnull(ops); |
| 52 | ut_assertnonnull(ops->read); |
| 53 | |
| 54 | /* |
| 55 | * mux driver sets last register on the emulated PHY whenever a group |
| 56 | * is selected to the selection #. Just reading that register from |
| 57 | * either of the child buses should return the id of the child bus |
| 58 | */ |
| 59 | reg = ops->read(mdio_ch0, SANDBOX_PHY_ADDR, MDIO_DEVAD_NONE, |
| 60 | SANDBOX_PHY_REG_CNT - 1); |
| 61 | ut_asserteq(reg, 0); |
| 62 | |
| 63 | reg = ops->read(mdio_ch1, SANDBOX_PHY_ADDR, MDIO_DEVAD_NONE, |
| 64 | SANDBOX_PHY_REG_CNT - 1); |
| 65 | ut_asserteq(reg, 1); |
| 66 | |
| 67 | mmops->select(mux, MDIO_MUX_SELECT_NONE, 5); |
| 68 | reg = ops_parent->read(mdio, SANDBOX_PHY_ADDR, MDIO_DEVAD_NONE, |
| 69 | SANDBOX_PHY_REG_CNT - 1); |
| 70 | ut_asserteq(reg, 5); |
| 71 | |
| 72 | mmops->deselect(mux, 5); |
| 73 | reg = ops_parent->read(mdio, SANDBOX_PHY_ADDR, MDIO_DEVAD_NONE, |
| 74 | SANDBOX_PHY_REG_CNT - 1); |
| 75 | ut_asserteq(reg, (u16)MDIO_MUX_SELECT_NONE); |
| 76 | |
| 77 | return 0; |
| 78 | } |
| 79 | |
| 80 | DM_TEST(dm_test_mdio_mux, DM_TESTF_SCAN_FDT); |