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-rw-r--r--drivers/firmware/scmi/sandbox-scmi_agent.c203
-rw-r--r--drivers/firmware/scmi/sandbox-scmi_devices.c25
2 files changed, 225 insertions, 3 deletions
diff --git a/drivers/firmware/scmi/sandbox-scmi_agent.c b/drivers/firmware/scmi/sandbox-scmi_agent.c
index 97a5dac..45a82d6 100644
--- a/drivers/firmware/scmi/sandbox-scmi_agent.c
+++ b/drivers/firmware/scmi/sandbox-scmi_agent.c
@@ -21,14 +21,15 @@
* SCMI protocols embedded in U-Boot. Currently:
* - SCMI clock protocol: emulate 2 agents each exposing few clocks
* - SCMI reset protocol: emulate 1 agents each exposing a reset
+ * - SCMI voltage domain protocol: emulate 1 agent exposing 2 regulators
*
- * Agent #0 simulates 2 clocks and 1 reset domain.
+ * Agent #0 simulates 2 clocks, 1 reset domain and 1 voltage domain.
* See IDs in scmi0_clk[]/scmi0_reset[] and "sandbox-scmi-agent@0" in test.dts.
*
* Agent #1 simulates 1 clock.
* See IDs in scmi1_clk[] and "sandbox-scmi-agent@1" in test.dts.
*
- * All clocks are default disabled and reset levels down.
+ * All clocks and regulators are default disabled and reset controller down.
*
* This Driver exports sandbox_scmi_service_ct() for the test sequence to
* get the state of the simulated services (clock state, rate, ...) and
@@ -47,6 +48,11 @@ static struct sandbox_scmi_reset scmi0_reset[] = {
{ .id = 3 },
};
+static struct sandbox_scmi_voltd scmi0_voltd[] = {
+ { .id = 0, .voltage_uv = 3300000 },
+ { .id = 1, .voltage_uv = 1800000 },
+};
+
static struct sandbox_scmi_clk scmi1_clk[] = {
{ .id = 1, .rate = 44 },
};
@@ -83,6 +89,13 @@ static void debug_print_agent_state(struct udevice *dev, char *str)
agent->reset_count,
agent->reset_count ? agent->reset[0].asserted : -1,
agent->reset_count > 1 ? agent->reset[1].asserted : -1);
+ dev_dbg(dev, " scmi%u_voltd (%zu): %u/%d, %u/%d, ...\n",
+ agent->idx,
+ agent->voltd_count,
+ agent->voltd_count ? agent->voltd[0].enabled : -1,
+ agent->voltd_count ? agent->voltd[0].voltage_uv : -1,
+ agent->voltd_count ? agent->voltd[1].enabled : -1,
+ agent->voltd_count ? agent->voltd[1].voltage_uv : -1);
};
static struct sandbox_scmi_clk *get_scmi_clk_state(uint agent_id, uint clock_id)
@@ -125,6 +138,20 @@ static struct sandbox_scmi_reset *get_scmi_reset_state(uint agent_id,
return NULL;
}
+static struct sandbox_scmi_voltd *get_scmi_voltd_state(uint agent_id,
+ uint domain_id)
+{
+ size_t n;
+
+ if (agent_id == 0) {
+ for (n = 0; n < ARRAY_SIZE(scmi0_voltd); n++)
+ if (scmi0_voltd[n].id == domain_id)
+ return scmi0_voltd + n;
+ }
+
+ return NULL;
+}
+
/*
* Sandbox SCMI agent ops
*/
@@ -292,6 +319,160 @@ static int sandbox_scmi_rd_reset(struct udevice *dev, struct scmi_msg *msg)
return 0;
}
+static int sandbox_scmi_voltd_attribs(struct udevice *dev, struct scmi_msg *msg)
+{
+ struct sandbox_scmi_agent *agent = dev_get_priv(dev);
+ struct scmi_voltd_attr_in *in = NULL;
+ struct scmi_voltd_attr_out *out = NULL;
+ struct sandbox_scmi_voltd *voltd_state = NULL;
+
+ if (!msg->in_msg || msg->in_msg_sz < sizeof(*in) ||
+ !msg->out_msg || msg->out_msg_sz < sizeof(*out))
+ return -EINVAL;
+
+ in = (struct scmi_voltd_attr_in *)msg->in_msg;
+ out = (struct scmi_voltd_attr_out *)msg->out_msg;
+
+ voltd_state = get_scmi_voltd_state(agent->idx, in->domain_id);
+ if (!voltd_state) {
+ dev_err(dev, "Unexpected domain ID %u\n", in->domain_id);
+
+ out->status = SCMI_NOT_FOUND;
+ } else {
+ memset(out, 0, sizeof(*out));
+ snprintf(out->name, sizeof(out->name), "regu%u", in->domain_id);
+
+ out->status = SCMI_SUCCESS;
+ }
+
+ return 0;
+}
+
+static int sandbox_scmi_voltd_config_set(struct udevice *dev,
+ struct scmi_msg *msg)
+{
+ struct sandbox_scmi_agent *agent = dev_get_priv(dev);
+ struct scmi_voltd_config_set_in *in = NULL;
+ struct scmi_voltd_config_set_out *out = NULL;
+ struct sandbox_scmi_voltd *voltd_state = NULL;
+
+ if (!msg->in_msg || msg->in_msg_sz < sizeof(*in) ||
+ !msg->out_msg || msg->out_msg_sz < sizeof(*out))
+ return -EINVAL;
+
+ in = (struct scmi_voltd_config_set_in *)msg->in_msg;
+ out = (struct scmi_voltd_config_set_out *)msg->out_msg;
+
+ voltd_state = get_scmi_voltd_state(agent->idx, in->domain_id);
+ if (!voltd_state) {
+ dev_err(dev, "Unexpected domain ID %u\n", in->domain_id);
+
+ out->status = SCMI_NOT_FOUND;
+ } else if (in->config & ~SCMI_VOLTD_CONFIG_MASK) {
+ dev_err(dev, "Invalid config value 0x%x\n", in->config);
+
+ out->status = SCMI_INVALID_PARAMETERS;
+ } else if (in->config != SCMI_VOLTD_CONFIG_ON &&
+ in->config != SCMI_VOLTD_CONFIG_OFF) {
+ dev_err(dev, "Unexpected custom value 0x%x\n", in->config);
+
+ out->status = SCMI_INVALID_PARAMETERS;
+ } else {
+ voltd_state->enabled = in->config == SCMI_VOLTD_CONFIG_ON;
+ out->status = SCMI_SUCCESS;
+ }
+
+ return 0;
+}
+
+static int sandbox_scmi_voltd_config_get(struct udevice *dev,
+ struct scmi_msg *msg)
+{
+ struct sandbox_scmi_agent *agent = dev_get_priv(dev);
+ struct scmi_voltd_config_get_in *in = NULL;
+ struct scmi_voltd_config_get_out *out = NULL;
+ struct sandbox_scmi_voltd *voltd_state = NULL;
+
+ if (!msg->in_msg || msg->in_msg_sz < sizeof(*in) ||
+ !msg->out_msg || msg->out_msg_sz < sizeof(*out))
+ return -EINVAL;
+
+ in = (struct scmi_voltd_config_get_in *)msg->in_msg;
+ out = (struct scmi_voltd_config_get_out *)msg->out_msg;
+
+ voltd_state = get_scmi_voltd_state(agent->idx, in->domain_id);
+ if (!voltd_state) {
+ dev_err(dev, "Unexpected domain ID %u\n", in->domain_id);
+
+ out->status = SCMI_NOT_FOUND;
+ } else {
+ if (voltd_state->enabled)
+ out->config = SCMI_VOLTD_CONFIG_ON;
+ else
+ out->config = SCMI_VOLTD_CONFIG_OFF;
+
+ out->status = SCMI_SUCCESS;
+ }
+
+ return 0;
+}
+
+static int sandbox_scmi_voltd_level_set(struct udevice *dev,
+ struct scmi_msg *msg)
+{
+ struct sandbox_scmi_agent *agent = dev_get_priv(dev);
+ struct scmi_voltd_level_set_in *in = NULL;
+ struct scmi_voltd_level_set_out *out = NULL;
+ struct sandbox_scmi_voltd *voltd_state = NULL;
+
+ if (!msg->in_msg || msg->in_msg_sz < sizeof(*in) ||
+ !msg->out_msg || msg->out_msg_sz < sizeof(*out))
+ return -EINVAL;
+
+ in = (struct scmi_voltd_level_set_in *)msg->in_msg;
+ out = (struct scmi_voltd_level_set_out *)msg->out_msg;
+
+ voltd_state = get_scmi_voltd_state(agent->idx, in->domain_id);
+ if (!voltd_state) {
+ dev_err(dev, "Unexpected domain ID %u\n", in->domain_id);
+
+ out->status = SCMI_NOT_FOUND;
+ } else {
+ voltd_state->voltage_uv = in->voltage_level;
+ out->status = SCMI_SUCCESS;
+ }
+
+ return 0;
+}
+
+static int sandbox_scmi_voltd_level_get(struct udevice *dev,
+ struct scmi_msg *msg)
+{
+ struct sandbox_scmi_agent *agent = dev_get_priv(dev);
+ struct scmi_voltd_level_get_in *in = NULL;
+ struct scmi_voltd_level_get_out *out = NULL;
+ struct sandbox_scmi_voltd *voltd_state = NULL;
+
+ if (!msg->in_msg || msg->in_msg_sz < sizeof(*in) ||
+ !msg->out_msg || msg->out_msg_sz < sizeof(*out))
+ return -EINVAL;
+
+ in = (struct scmi_voltd_level_get_in *)msg->in_msg;
+ out = (struct scmi_voltd_level_get_out *)msg->out_msg;
+
+ voltd_state = get_scmi_voltd_state(agent->idx, in->domain_id);
+ if (!voltd_state) {
+ dev_err(dev, "Unexpected domain ID %u\n", in->domain_id);
+
+ out->status = SCMI_NOT_FOUND;
+ } else {
+ out->voltage_level = voltd_state->voltage_uv;
+ out->status = SCMI_SUCCESS;
+ }
+
+ return 0;
+}
+
static int sandbox_scmi_test_process_msg(struct udevice *dev,
struct scmi_msg *msg)
{
@@ -318,6 +499,22 @@ static int sandbox_scmi_test_process_msg(struct udevice *dev,
break;
}
break;
+ case SCMI_PROTOCOL_ID_VOLTAGE_DOMAIN:
+ switch (msg->message_id) {
+ case SCMI_VOLTAGE_DOMAIN_ATTRIBUTES:
+ return sandbox_scmi_voltd_attribs(dev, msg);
+ case SCMI_VOLTAGE_DOMAIN_CONFIG_SET:
+ return sandbox_scmi_voltd_config_set(dev, msg);
+ case SCMI_VOLTAGE_DOMAIN_CONFIG_GET:
+ return sandbox_scmi_voltd_config_get(dev, msg);
+ case SCMI_VOLTAGE_DOMAIN_LEVEL_SET:
+ return sandbox_scmi_voltd_level_set(dev, msg);
+ case SCMI_VOLTAGE_DOMAIN_LEVEL_GET:
+ return sandbox_scmi_voltd_level_get(dev, msg);
+ default:
+ break;
+ }
+ break;
case SCMI_PROTOCOL_ID_BASE:
case SCMI_PROTOCOL_ID_POWER_DOMAIN:
case SCMI_PROTOCOL_ID_SYSTEM:
@@ -369,6 +566,8 @@ static int sandbox_scmi_test_probe(struct udevice *dev)
.clk_count = ARRAY_SIZE(scmi0_clk),
.reset = scmi0_reset,
.reset_count = ARRAY_SIZE(scmi0_reset),
+ .voltd = scmi0_voltd,
+ .voltd_count = ARRAY_SIZE(scmi0_voltd),
};
break;
case '1':
diff --git a/drivers/firmware/scmi/sandbox-scmi_devices.c b/drivers/firmware/scmi/sandbox-scmi_devices.c
index 69239a1..66a6792 100644
--- a/drivers/firmware/scmi/sandbox-scmi_devices.c
+++ b/drivers/firmware/scmi/sandbox-scmi_devices.c
@@ -1,6 +1,6 @@
// SPDX-License-Identifier: GPL-2.0
/*
- * Copyright (C) 2020, Linaro Limited
+ * Copyright (C) 2020-2021, Linaro Limited
*/
#define LOG_CATEGORY UCLASS_MISC
@@ -8,11 +8,13 @@
#include <common.h>
#include <clk.h>
#include <dm.h>
+#include <log.h>
#include <malloc.h>
#include <reset.h>
#include <asm/io.h>
#include <asm/scmi_test.h>
#include <dm/device_compat.h>
+#include <power/regulator.h>
/*
* Simulate to some extent a SCMI exchange.
@@ -23,16 +25,19 @@
#define SCMI_TEST_DEVICES_CLK_COUNT 3
#define SCMI_TEST_DEVICES_RD_COUNT 1
+#define SCMI_TEST_DEVICES_VOLTD_COUNT 2
/*
* struct sandbox_scmi_device_priv - Storage for device handles used by test
* @clk: Array of clock instances used by tests
* @reset_clt: Array of the reset controller instances used by tests
+ * @regulators: Array of regulator device references used by the tests
* @devices: Resources exposed by sandbox_scmi_devices_ctx()
*/
struct sandbox_scmi_device_priv {
struct clk clk[SCMI_TEST_DEVICES_CLK_COUNT];
struct reset_ctl reset_ctl[SCMI_TEST_DEVICES_RD_COUNT];
+ struct udevice *regulators[SCMI_TEST_DEVICES_VOLTD_COUNT];
struct sandbox_scmi_devices devices;
};
@@ -76,6 +81,8 @@ static int sandbox_scmi_devices_probe(struct udevice *dev)
.clk_count = SCMI_TEST_DEVICES_CLK_COUNT,
.reset = priv->reset_ctl,
.reset_count = SCMI_TEST_DEVICES_RD_COUNT,
+ .regul = priv->regulators,
+ .regul_count = SCMI_TEST_DEVICES_VOLTD_COUNT,
};
for (n = 0; n < SCMI_TEST_DEVICES_CLK_COUNT; n++) {
@@ -94,8 +101,24 @@ static int sandbox_scmi_devices_probe(struct udevice *dev)
}
}
+ for (n = 0; n < SCMI_TEST_DEVICES_VOLTD_COUNT; n++) {
+ char name[32];
+
+ ret = snprintf(name, sizeof(name), "regul%zu-supply", n);
+ assert(ret >= 0 && ret < sizeof(name));
+
+ ret = device_get_supply_regulator(dev, name,
+ priv->devices.regul + n);
+ if (ret) {
+ dev_err(dev, "%s: Failed on voltd %zu\n", __func__, n);
+ goto err_regul;
+ }
+ }
+
return 0;
+err_regul:
+ n = SCMI_TEST_DEVICES_RD_COUNT;
err_reset:
for (; n > 0; n--)
reset_free(priv->devices.reset + n - 1);
generated by cgit v1.1 at 2024-11-15 15:57:43 +0000