diff options
| -rw-r--r-- | arch/sandbox/dts/test.dts | 33 | ||||
| -rw-r--r-- | configs/sandbox_defconfig | 2 | ||||
| -rw-r--r-- | test/dm/Makefile | 2 | ||||
| -rw-r--r-- | test/dm/mux-emul.c | 105 | ||||
| -rw-r--r-- | test/dm/mux-mmio.c | 138 |
5 files changed, 280 insertions, 0 deletions
diff --git a/arch/sandbox/dts/test.dts b/arch/sandbox/dts/test.dts index fa84b2c10f3..70ccb4951ad 100644 --- a/arch/sandbox/dts/test.dts +++ b/arch/sandbox/dts/test.dts @@ -3,6 +3,7 @@ #include <dt-bindings/gpio/gpio.h> #include <dt-bindings/gpio/sandbox-gpio.h> #include <dt-bindings/pinctrl/sandbox-pinmux.h> +#include <dt-bindings/mux/mux.h> / { model = "sandbox"; @@ -133,6 +134,12 @@ interrupts-extended = <&irq 3 0>; acpi,name = "GHIJ"; phandle-value = <&gpio_c 10>, <0xFFFFFFFF 20>, <&gpio_a 30>; + + mux-controls = <&muxcontroller0 0>, <&muxcontroller0 1>, + <&muxcontroller0 2>, <&muxcontroller0 3>, + <&muxcontroller1>; + mux-control-names = "mux0", "mux1", "mux2", "mux3", "mux4"; + mux-syscon = <&syscon3>; }; junk { @@ -170,6 +177,9 @@ compatible = "denx,u-boot-fdt-test"; ping-expect = <3>; ping-add = <3>; + + mux-controls = <&muxcontroller0 0>; + mux-control-names = "mux0"; }; phy_provider0: gen_phy@0 { @@ -884,6 +894,29 @@ 0x58 8>; }; + syscon3: syscon@3 { + compatible = "simple-mfd", "syscon"; + reg = <0x000100 0x10>; + + muxcontroller0: a-mux-controller { + compatible = "mmio-mux"; + #mux-control-cells = <1>; + + mux-reg-masks = <0x0 0x30>, /* 0: reg 0x0, bits 5:4 */ + <0xc 0x1E>, /* 1: reg 0xc, bits 4:1 */ + <0x4 0xFF>; /* 2: reg 0x4, bits 7:0 */ + idle-states = <MUX_IDLE_AS_IS>, <0x02>, <0x73>; + u-boot,mux-autoprobe; + }; + }; + + muxcontroller1: emul-mux-controller { + compatible = "mux-emul"; + #mux-control-cells = <0>; + u-boot,mux-autoprobe; + idle-state = <0xabcd>; + }; + timer@0 { compatible = "sandbox,timer"; clock-frequency = <1000000>; diff --git a/configs/sandbox_defconfig b/configs/sandbox_defconfig index b15b1889e07..1b0475243bc 100644 --- a/configs/sandbox_defconfig +++ b/configs/sandbox_defconfig @@ -179,6 +179,8 @@ CONFIG_SPI_FLASH_SPANSION=y CONFIG_SPI_FLASH_STMICRO=y CONFIG_SPI_FLASH_SST=y CONFIG_SPI_FLASH_WINBOND=y +CONFIG_MULTIPLEXER=y +CONFIG_MUX_MMIO=y CONFIG_DM_ETH=y CONFIG_NVME=y CONFIG_PCI=y diff --git a/test/dm/Makefile b/test/dm/Makefile index e2b07983885..93484b48ebf 100644 --- a/test/dm/Makefile +++ b/test/dm/Makefile @@ -57,6 +57,8 @@ obj-$(CONFIG_DM_SPI_FLASH) += sf.o obj-$(CONFIG_SMEM) += smem.o obj-$(CONFIG_DM_SPI) += spi.o obj-y += syscon.o +obj-$(CONFIG_MUX_MMIO) += mux-mmio.o +obj-$(CONFIG_MULTIPLEXER) += mux-emul.o obj-$(CONFIG_DM_USB) += usb.o obj-$(CONFIG_DM_PMIC) += pmic.o obj-$(CONFIG_DM_REGULATOR) += regulator.o diff --git a/test/dm/mux-emul.c b/test/dm/mux-emul.c new file mode 100644 index 00000000000..141fd4d9083 --- /dev/null +++ b/test/dm/mux-emul.c @@ -0,0 +1,105 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2020 Texas Instruments Incorporated - http://www.ti.com/ + * Pratyush Yadav <p.yadav@ti.com> + */ +#include <common.h> +#include <dm.h> +#include <mux.h> +#include <mux-internal.h> +#include <dm/test.h> +#include <test/ut.h> + +struct mux_emul_priv { + u32 state; +}; + +static int mux_emul_set(struct mux_control *mux, int state) +{ + struct mux_emul_priv *priv = dev_get_priv(mux->dev); + + priv->state = state; + return 0; +} + +static int mux_emul_probe(struct udevice *dev) +{ + struct mux_chip *mux_chip = dev_get_uclass_priv(dev); + struct mux_control *mux; + u32 idle_state; + int ret; + + ret = mux_alloc_controllers(dev, 1); + if (ret < 0) + return ret; + + mux = &mux_chip->mux[0]; + + ret = dev_read_u32(dev, "idle-state", &idle_state); + if (ret) + return ret; + + mux->idle_state = idle_state; + mux->states = 0x100000; + + return 0; +} + +static const struct mux_control_ops mux_emul_ops = { + .set = mux_emul_set, +}; + +static const struct udevice_id mux_emul_of_match[] = { + { .compatible = "mux-emul" }, + { /* sentinel */ }, +}; + +U_BOOT_DRIVER(emul_mux) = { + .name = "mux-emul", + .id = UCLASS_MUX, + .of_match = mux_emul_of_match, + .ops = &mux_emul_ops, + .probe = mux_emul_probe, + .priv_auto_alloc_size = sizeof(struct mux_emul_priv), +}; + +static int dm_test_mux_emul_default_state(struct unit_test_state *uts) +{ + struct udevice *dev; + struct mux_control *mux; + struct mux_emul_priv *priv; + + ut_assertok(uclass_get_device_by_name(UCLASS_TEST_FDT, "a-test", + &dev)); + ut_assertok(mux_control_get(dev, "mux4", &mux)); + + priv = dev_get_priv(mux->dev); + + ut_asserteq(0xabcd, priv->state); + + return 0; +} +DM_TEST(dm_test_mux_emul_default_state, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT); + +static int dm_test_mux_emul_select_deselect(struct unit_test_state *uts) +{ + struct udevice *dev; + struct mux_control *mux; + struct mux_emul_priv *priv; + + gd->flags &= ~(GD_FLG_SILENT | GD_FLG_RECORD); + ut_assertok(uclass_get_device_by_name(UCLASS_TEST_FDT, "a-test", + &dev)); + ut_assertok(mux_control_get(dev, "mux4", &mux)); + + priv = dev_get_priv(mux->dev); + + ut_assertok(mux_control_select(mux, 0x1234)); + ut_asserteq(priv->state, 0x1234); + + ut_assertok(mux_control_deselect(mux)); + ut_asserteq(priv->state, 0xabcd); + + return 0; +} +DM_TEST(dm_test_mux_emul_select_deselect, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT); diff --git a/test/dm/mux-mmio.c b/test/dm/mux-mmio.c new file mode 100644 index 00000000000..fd353d8b155 --- /dev/null +++ b/test/dm/mux-mmio.c @@ -0,0 +1,138 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2017-2018 Texas Instruments Incorporated - http://www.ti.com/ + * Jean-Jacques Hiblot <jjhiblot@ti.com> + */ + +#include <common.h> +#include <dm.h> +#include <mux.h> +#include <regmap.h> +#include <syscon.h> +#include <asm/test.h> +#include <dm/test.h> +#include <dm/device-internal.h> +#include <test/ut.h> + +static int dm_test_mux_mmio_select(struct unit_test_state *uts) +{ + struct udevice *dev, *dev_b; + struct regmap *map; + struct mux_control *ctl0_a, *ctl0_b; + struct mux_control *ctl1; + struct mux_control *ctl_err; + u32 val; + int i; + + sandbox_set_enable_memio(true); + + ut_assertok(uclass_get_device_by_name(UCLASS_TEST_FDT, "a-test", + &dev)); + ut_assertok(uclass_get_device_by_name(UCLASS_TEST_FDT, "b-test", + &dev_b)); + map = syscon_regmap_lookup_by_phandle(dev, "mux-syscon"); + ut_assertok_ptr(map); + ut_assert(map); + + ut_assertok(mux_control_get(dev, "mux0", &ctl0_a)); + ut_assertok(mux_control_get(dev, "mux1", &ctl1)); + ut_asserteq(-ERANGE, mux_control_get(dev, "mux3", &ctl_err)); + ut_asserteq(-ENODATA, mux_control_get(dev, "dummy", &ctl_err)); + ut_assertok(mux_control_get(dev_b, "mux0", &ctl0_b)); + + for (i = 0; i < mux_control_states(ctl0_a); i++) { + /* Select a new state and verify the value in the regmap. */ + ut_assertok(mux_control_select(ctl0_a, i)); + ut_assertok(regmap_read(map, 0, &val)); + ut_asserteq(i, (val & 0x30) >> 4); + /* + * Deselect the mux and verify that the value in the regmap + * reflects the idle state (fixed to MUX_IDLE_AS_IS). + */ + ut_assertok(mux_control_deselect(ctl0_a)); + ut_assertok(regmap_read(map, 0, &val)); + ut_asserteq(i, (val & 0x30) >> 4); + } + + for (i = 0; i < mux_control_states(ctl1); i++) { + /* Select a new state and verify the value in the regmap. */ + ut_assertok(mux_control_select(ctl1, i)); + ut_assertok(regmap_read(map, 0xc, &val)); + ut_asserteq(i, (val & 0x1E) >> 1); + /* + * Deselect the mux and verify that the value in the regmap + * reflects the idle state (fixed to 2). + */ + ut_assertok(mux_control_deselect(ctl1)); + ut_assertok(regmap_read(map, 0xc, &val)); + ut_asserteq(2, (val & 0x1E) >> 1); + } + + /* Try unbalanced selection/deselection. */ + ut_assertok(mux_control_select(ctl0_a, 0)); + ut_asserteq(-EBUSY, mux_control_select(ctl0_a, 1)); + ut_asserteq(-EBUSY, mux_control_select(ctl0_a, 0)); + ut_assertok(mux_control_deselect(ctl0_a)); + + /* Try concurrent selection. */ + ut_assertok(mux_control_select(ctl0_a, 0)); + ut_assert(mux_control_select(ctl0_b, 0)); + ut_assertok(mux_control_deselect(ctl0_a)); + ut_assertok(mux_control_select(ctl0_b, 0)); + ut_assert(mux_control_select(ctl0_a, 0)); + ut_assertok(mux_control_deselect(ctl0_b)); + ut_assertok(mux_control_select(ctl0_a, 0)); + ut_assertok(mux_control_deselect(ctl0_a)); + + return 0; +} +DM_TEST(dm_test_mux_mmio_select, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT); + +/* Test that managed API for mux work correctly */ +static int dm_test_devm_mux_mmio(struct unit_test_state *uts) +{ + struct udevice *dev, *dev_b; + struct mux_control *ctl0_a, *ctl0_b; + struct mux_control *ctl1; + struct mux_control *ctl_err; + + sandbox_set_enable_memio(true); + + ut_assertok(uclass_get_device_by_name(UCLASS_TEST_FDT, "a-test", + &dev)); + ut_assertok(uclass_get_device_by_name(UCLASS_TEST_FDT, "b-test", + &dev_b)); + + ctl0_a = devm_mux_control_get(dev, "mux0"); + ut_assertok_ptr(ctl0_a); + ut_assert(ctl0_a); + ctl1 = devm_mux_control_get(dev, "mux1"); + ut_assertok_ptr(ctl1); + ut_assert(ctl1); + ctl_err = devm_mux_control_get(dev, "mux3"); + ut_asserteq(-ERANGE, PTR_ERR(ctl_err)); + ctl_err = devm_mux_control_get(dev, "dummy"); + ut_asserteq(-ENODATA, PTR_ERR(ctl_err)); + + ctl0_b = devm_mux_control_get(dev_b, "mux0"); + ut_assertok_ptr(ctl0_b); + ut_assert(ctl0_b); + + /* Try concurrent selection. */ + ut_assertok(mux_control_select(ctl0_a, 0)); + ut_assert(mux_control_select(ctl0_b, 0)); + ut_assertok(mux_control_deselect(ctl0_a)); + ut_assertok(mux_control_select(ctl0_b, 0)); + ut_assert(mux_control_select(ctl0_a, 0)); + ut_assertok(mux_control_deselect(ctl0_b)); + + /* Remove one device and check that the mux is released. */ + ut_assertok(mux_control_select(ctl0_a, 0)); + ut_assert(mux_control_select(ctl0_b, 0)); + device_remove(dev, DM_REMOVE_NORMAL); + ut_assertok(mux_control_select(ctl0_b, 0)); + + device_remove(dev_b, DM_REMOVE_NORMAL); + return 0; +} +DM_TEST(dm_test_devm_mux_mmio, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT); |