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firmware: scmi: sandbox test for SCMI clocks

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Add tests for SCMI clocks. A test device driver sandbox-scmi_devices.c
is used to get clock resources, allowing further clock manipulation.

Change sandbox-smci_agent to emulate 3 clocks exposed through 2 agents.
Add DM test scmi_clocks to test these 3 clocks.
Update DM test sandbox_scmi_agent with load/remove test sequences
factorized by {load|remove}_sandbox_scmi_test_devices() helper functions.

Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>
Cc: Simon Glass <sjg@chromium.org>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Sudeep Holla <sudeep.holla@arm.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Etienne Carriere
2020-09-09 18:44:05 +02:00
committed by Tom Rini
parent 6038884483
commit 87d4f277d4
7 changed files with 431 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files

15
arch/sandbox/dts/test.dts
View File

@@ -371,6 +371,11 @@
compatible = "sandbox,scmi-agent";
#address-cells = <1>;
#size-cells = <0>;
clk_scmi0: protocol@14 {
reg = <0x14>;
#clock-cells = <1>;
};
};
sandbox-scmi-agent@1 {
@@ -378,6 +383,11 @@
#address-cells = <1>;
#size-cells = <0>;
clk_scmi1: protocol@14 {
reg = <0x14>;
#clock-cells = <1>;
};
protocol@10 {
reg = <0x10>;
};
@@ -1069,6 +1079,11 @@
compatible = "sandbox,virtio2";
};
sandbox_scmi {
compatible = "sandbox,scmi-devices";
clocks = <&clk_scmi0 7>, <&clk_scmi0 3>, <&clk_scmi1 1>;
};
pinctrl {
compatible = "sandbox,pinctrl";

39
arch/sandbox/include/asm/scmi_test.h
View File

@@ -10,12 +10,28 @@ struct udevice;
struct sandbox_scmi_agent;
struct sandbox_scmi_service;
/**
* struct sandbox_scmi_clk - Simulated clock exposed by SCMI
* @id: Identifier of the clock used in the SCMI protocol
* @enabled: Clock state: true if enabled, false if disabled
* @rate: Clock rate in Hertz
*/
struct sandbox_scmi_clk {
uint id;
bool enabled;
ulong rate;
};
/**
* struct sandbox_scmi_agent - Simulated SCMI service seen by SCMI agent
* @idx: Identifier for the SCMI agent, its index
* @clk: Simulated clocks
* @clk_count: Simulated clocks array size
*/
struct sandbox_scmi_agent {
uint idx;
struct sandbox_scmi_clk *clk;
size_t clk_count;
};
/**
@@ -28,16 +44,39 @@ struct sandbox_scmi_service {
size_t agent_count;
};
/**
* struct sandbox_scmi_devices - Reference to devices probed through SCMI
* @clk: Array the clock devices
* @clk_count: Number of clock devices probed
*/
struct sandbox_scmi_devices {
struct clk *clk;
size_t clk_count;
};
#ifdef CONFIG_SCMI_FIRMWARE
/**
* sandbox_scmi_service_context - Get the simulated SCMI services context
* @return: Reference to backend simulated resources state
*/
struct sandbox_scmi_service *sandbox_scmi_service_ctx(void);
/**
* sandbox_scmi_devices_get_ref - Get references to devices accessed through SCMI
* @dev: Reference to the test device used get test resources
* @return: Reference to the devices probed by the SCMI test
*/
struct sandbox_scmi_devices *sandbox_scmi_devices_ctx(struct udevice *dev);
#else
static inline struct sandbox_scmi_service *sandbox_scmi_service_ctx(void)
{
return NULL;
}
static inline
struct sandbox_scmi_devices *sandbox_scmi_devices_ctx(struct udevice *dev)
{
return NULL;
}
#endif /* CONFIG_SCMI_FIRMWARE */
#endif /* __SANDBOX_SCMI_TEST_H */