[PATCH 2/7] firmware: ti_sci: Implement GET_RANGE with static data
Vignesh Raghavendra
vigneshr at ti.com
Mon May 10 19:24:37 CEST 2021
In case of R5 SPL, GET_RANGE API service is not available (as DM
services are not yet up), therefore service such calls locally using
per SoC static data.
Signed-off-by: Vignesh Raghavendra <vigneshr at ti.com>
---
drivers/firmware/ti_sci.c | 36 +++++++++++
drivers/firmware/ti_sci_static_data.h | 92 +++++++++++++++++++++++++++
2 files changed, 128 insertions(+)
create mode 100644 drivers/firmware/ti_sci_static_data.h
diff --git a/drivers/firmware/ti_sci.c b/drivers/firmware/ti_sci.c
index 2aec2e34d3..c27fbc682a 100644
--- a/drivers/firmware/ti_sci.c
+++ b/drivers/firmware/ti_sci.c
@@ -23,6 +23,7 @@
#include <linux/soc/ti/ti_sci_protocol.h>
#include "ti_sci.h"
+#include "ti_sci_static_data.h"
/* List of all TI SCI devices active in system */
static LIST_HEAD(ti_sci_list);
@@ -1667,6 +1668,33 @@ fail:
return ret;
}
+static int __maybe_unused
+ti_sci_get_resource_range_static(u32 dev_id, u8 subtype, u16 *range_start,
+ u16 *range_num)
+{
+ struct ti_sci_resource_static_data *data;
+ int i = 0;
+
+ while (1) {
+ data = &rm_static_data[i];
+
+ if (!data->dev_id)
+ return -EINVAL;
+
+ if (data->dev_id != dev_id || data->subtype != subtype) {
+ i++;
+ continue;
+ }
+
+ *range_start = data->range_start;
+ *range_num = data->range_num;
+
+ return 0;
+ }
+
+ return -EINVAL;
+}
+
/**
* ti_sci_cmd_get_resource_range - Get a range of resources assigned to host
* that is same as ti sci interface host.
@@ -1683,6 +1711,11 @@ static int ti_sci_cmd_get_resource_range(const struct ti_sci_handle *handle,
u32 dev_id, u8 subtype,
u16 *range_start, u16 *range_num)
{
+ if (CONFIG_IS_ENABLED(TI_K3_RAW_RM))
+ return ti_sci_get_resource_range_static(dev_id, subtype,
+ range_start,
+ range_num);
+
return ti_sci_get_resource_range(handle, dev_id, subtype,
TI_SCI_IRQ_SECONDARY_HOST_INVALID,
range_start, range_num);
@@ -1706,6 +1739,9 @@ int ti_sci_cmd_get_resource_range_from_shost(const struct ti_sci_handle *handle,
u32 dev_id, u8 subtype, u8 s_host,
u16 *range_start, u16 *range_num)
{
+ if (CONFIG_IS_ENABLED(TI_K3_RAW_RM))
+ return -EINVAL;
+
return ti_sci_get_resource_range(handle, dev_id, subtype, s_host,
range_start, range_num);
}
diff --git a/drivers/firmware/ti_sci_static_data.h b/drivers/firmware/ti_sci_static_data.h
new file mode 100644
index 0000000000..2816cb2827
--- /dev/null
+++ b/drivers/firmware/ti_sci_static_data.h
@@ -0,0 +1,92 @@
+/* SPDX-License-Identifier: BSD-3-Clause */
+/*
+ * Copyright (C) 2021 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ */
+
+#ifndef __TI_SCI_STATIC_DATA_H
+#define __TI_SCI_STATIC_DATA_H
+
+struct ti_sci_resource_static_data {
+ u32 dev_id;
+ u16 range_start;
+ u16 range_num;
+ u8 subtype;
+};
+
+#if IS_ENABLED(CONFIG_K3_DM_FW)
+
+#ifdef CONFIG_TARGET_J721E_R5_EVM
+static struct ti_sci_resource_static_data rm_static_data[] = {
+ /* Free rings */
+ {
+ .dev_id = 235,
+ .subtype = 1,
+ .range_start = 124,
+ .range_num = 32,
+ },
+ /* TX channels */
+ {
+ .dev_id = 236,
+ .subtype = 13,
+ .range_start = 6,
+ .range_num = 2,
+ },
+ /* RX channels */
+ {
+ .dev_id = 236,
+ .subtype = 10,
+ .range_start = 6,
+ .range_num = 2,
+ },
+ /* RX Free flows */
+ {
+ .dev_id = 236,
+ .subtype = 0,
+ .range_start = 60,
+ .range_num = 8,
+ },
+ { },
+};
+#endif /* CONFIG_TARGET_J721E_R5_EVM */
+
+#ifdef CONFIG_TARGET_J7200_R5_EVM
+static struct ti_sci_resource_static_data rm_static_data[] = {
+ /* Free rings */
+ {
+ .dev_id = 235,
+ .subtype = 1,
+ .range_start = 144,
+ .range_num = 32,
+ },
+ /* TX channels */
+ {
+ .dev_id = 236,
+ .subtype = 13,
+ .range_start = 7,
+ .range_num = 2,
+ },
+ /* RX channels */
+ {
+ .dev_id = 236,
+ .subtype = 10,
+ .range_start = 7,
+ .range_num = 2,
+ },
+ /* RX Free flows */
+ {
+ .dev_id = 236,
+ .subtype = 0,
+ .range_start = 60,
+ .range_num = 8,
+ },
+ { },
+};
+#endif /* CONFIG_TARGET_J7200_R5_EVM */
+
+#else
+static struct ti_sci_resource_static_data rm_static_data[] = {
+ { },
+};
+#endif /* CONFIG_K3_DM_FW */
+#endif /* __TI_SCI_STATIC_DATA_H */
--
2.31.1
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