Add a sandbox CPU driver, and some tests for the CPU uclass.
Signed-off-by: Mario Six <mario....@gdsys.cc>
---
Notes:
v3 -> v4:
New in v4
arch/sandbox/dts/test.dts | 12 ++++++++++
drivers/cpu/Makefile | 1 +
drivers/cpu/cpu_sandbox.c | 61 +++++++++++++++++++++++++++++++++++++++++++++++
test/dm/Makefile | 1 +
test/dm/cpu.c | 45 ++++++++++++++++++++++++++++++++++
5 files changed, 120 insertions(+)
create mode 100644 drivers/cpu/cpu_sandbox.c
create mode 100644 test/dm/cpu.c
diff --git a/arch/sandbox/dts/test.dts b/arch/sandbox/dts/test.dts
index 137679abea9..527af1aee11 100644
--- a/arch/sandbox/dts/test.dts
+++ b/arch/sandbox/dts/test.dts
@@ -283,6 +283,18 @@
mbox-names = "other", "test";
};
+ cpu-test1 {
+ compatible = "sandbox,cpu_sandbox";
+ };
+
+ cpu-test2 {
+ compatible = "sandbox,cpu_sandbox";
+ };
+
+ cpu-test3 {
+ compatible = "sandbox,cpu_sandbox";
+ };
+
mmc2 {
compatible = "sandbox,mmc";
};
diff --git a/drivers/cpu/Makefile b/drivers/cpu/Makefile
index db515f6f177..980c68f44d0 100644
--- a/drivers/cpu/Makefile
+++ b/drivers/cpu/Makefile
@@ -7,3 +7,4 @@
obj-$(CONFIG_CPU) += cpu-uclass.o
obj-$(CONFIG_ARCH_BMIPS) += bmips_cpu.o
+obj-$(CONFIG_SANDBOX) += cpu_sandbox.o
diff --git a/drivers/cpu/cpu_sandbox.c b/drivers/cpu/cpu_sandbox.c
new file mode 100644
index 00000000000..ff87e8adca3
--- /dev/null
+++ b/drivers/cpu/cpu_sandbox.c
@@ -0,0 +1,61 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * (C) Copyright 2018
+ * Mario Six, Guntermann & Drunck GmbH, mario....@gdsys.cc
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <cpu.h>
+
+int cpu_sandbox_get_desc(struct udevice *dev, char *buf, int size)
+{
+ snprintf(buf, size, "LEG Inc. SuperMegaUltraTurbo CPU No. 1");
+
+ return 0;
+}
+
+int cpu_sandbox_get_info(struct udevice *dev, struct cpu_info *info)
+{
+ info->cpu_freq = 42 * 42 * 42 * 42 * 42;
+ info->features = 0x42424242;
+
+ return 0;
+}
+
+int cpu_sandbox_get_count(struct udevice *dev)
+{
+ return 42;
+}
+
+int cpu_sandbox_get_vendor(struct udevice *dev, char *buf, int size)
+{
+ snprintf(buf, size, "Languid Example Garbage Inc.");
+
+ return 0;
+}
+
+static const struct cpu_ops cpu_sandbox_ops = {
+ .get_desc = cpu_sandbox_get_desc,
+ .get_info = cpu_sandbox_get_info,
+ .get_count = cpu_sandbox_get_count,
+ .get_vendor = cpu_sandbox_get_vendor,
+};
+
+int cpu_sandbox_probe(struct udevice *dev)
+{
+ return 0;
+}
+
+static const struct udevice_id cpu_sandbox_ids[] = {
+ { .compatible = "sandbox,cpu_sandbox" },
+ { }
+};
+
+U_BOOT_DRIVER(cpu_sandbox) = {
+ .name = "cpu_sandbox",
+ .id = UCLASS_CPU,
+ .ops = &cpu_sandbox_ops,
+ .of_match = cpu_sandbox_ids,
+ .probe = cpu_sandbox_probe,
+};
diff --git a/test/dm/Makefile b/test/dm/Makefile
index d2ed96c6153..c3bb26bb974 100644
--- a/test/dm/Makefile
+++ b/test/dm/Makefile
@@ -44,4 +44,5 @@ obj-$(CONFIG_DM_VIDEO) += video.o
obj-$(CONFIG_ADC) += adc.o
obj-$(CONFIG_SPMI) += spmi.o
obj-$(CONFIG_WDT) += wdt.o
+obj-$(CONFIG_CPU) += cpu.o
endif
diff --git a/test/dm/cpu.c b/test/dm/cpu.c
new file mode 100644
index 00000000000..f5f1caef716
--- /dev/null
+++ b/test/dm/cpu.c
@@ -0,0 +1,45 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * (C) Copyright 2018
+ * Mario Six, Guntermann & Drunck GmbH, mario....@gdsys.cc
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <dm/test.h>
+#include <dm/uclass-internal.h>
+#include <cpu.h>
+#include <test/ut.h>
+
+static int dm_test_cpu(struct unit_test_state *uts)
+{
+ struct udevice *dev;
+ char text[128];
+ struct cpu_info info;
+
+ ut_assertok(cpu_probe_all());
+
+ /* Check that cpu_probe_all really activated all CPUs */
+ for (uclass_find_first_device(UCLASS_CPU, &dev);
+ dev;
+ uclass_find_next_device(&dev))
+ ut_assert(dev->flags & DM_FLAG_ACTIVATED);
+
+ ut_assertok(uclass_get_device_by_name(UCLASS_CPU, "cpu-test1", &dev));
+
+ ut_assertok(cpu_get_desc(dev, text, sizeof(text)));
+ ut_assertok(strcmp(text, "LEG Inc. SuperMegaUltraTurbo CPU No. 1"));
+
+ ut_assertok(cpu_get_info(dev, &info));
+ ut_asserteq(info.cpu_freq, 42 * 42 * 42 * 42 * 42);
+ ut_asserteq(info.features, 0x42424242);
+
+ ut_asserteq(cpu_get_count(dev), 42);
+
+ ut_assertok(cpu_get_vendor(dev, text, sizeof(text)));
+ ut_assertok(strcmp(text, "Languid Example Garbage Inc."));
+
+ return 0;
+}
+
+DM_TEST(dm_test_cpu, DM_TESTF_SCAN_FDT);
--
2.11.0
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