linux-kernel - [PATCH net-next 2/3] net: ipa: populate clock and interconnect data

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Date:   Thu, 19 Nov 2020 16:40:40 -0600
From:   Alex Elder <elder@...aro.org>
To:     davem@...emloft.net, kuba@...nel.org
Cc:     evgreen@...omium.org, subashab@...eaurora.org,
        cpratapa@...eaurora.org, bjorn.andersson@...aro.org,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH net-next 2/3] net: ipa: populate clock and interconnect data

Populate the core clock rate and interconnect average and peak
bandwidth data for SDM845 and SC7180 in their configuration data
files.  At this point we still don't *use* this data.

Note that SC7180 actually defines a new core clock rate (100 MHz
instead of 75 MHz) and new interconnect bandwidth values.  They
will be activated in the next commit, which uses the configured
values rather than the fixed constants.

Signed-off-by: Alex Elder <elder@...aro.org>
---
 drivers/net/ipa/ipa_data-sc7180.c | 21 +++++++++++++++++++++
 drivers/net/ipa/ipa_data-sdm845.c | 21 +++++++++++++++++++++
 2 files changed, 42 insertions(+)

diff --git a/drivers/net/ipa/ipa_data-sc7180.c b/drivers/net/ipa/ipa_data-sc7180.c
index 37dada4da6808..5cc0ed77edb9c 100644
--- a/drivers/net/ipa/ipa_data-sc7180.c
+++ b/drivers/net/ipa/ipa_data-sc7180.c
@@ -309,6 +309,26 @@ static struct ipa_mem_data ipa_mem_data = {
 	.smem_size	= 0x00002000,
 };
 
+static struct ipa_clock_data ipa_clock_data = {
+	.core_clock_rate	= 100 * 1000 * 1000,	/* Hz */
+	/* Interconnect rates are in 1000 byte/second units */
+	.interconnect = {
+		[IPA_INTERCONNECT_MEMORY] = {
+			.peak_rate	= 465000,	/* 465 MBps */
+			.average_rate	= 80000,	/* 80 MBps */
+		},
+		/* Average rate is unused for the next two interconnects */
+		[IPA_INTERCONNECT_IMEM] = {
+			.peak_rate	= 68570,	/* 68.570 MBps */
+			.average_rate	= 0,		/* unused */
+		},
+		[IPA_INTERCONNECT_CONFIG] = {
+			.peak_rate	= 30000,	/* 30 MBps */
+			.average_rate	= 0,		/* unused */
+		},
+	},
+};
+
 /* Configuration data for the SC7180 SoC. */
 const struct ipa_data ipa_data_sc7180 = {
 	.version	= IPA_VERSION_4_2,
@@ -316,4 +336,5 @@ const struct ipa_data ipa_data_sc7180 = {
 	.endpoint_data	= ipa_gsi_endpoint_data,
 	.resource_data	= &ipa_resource_data,
 	.mem_data	= &ipa_mem_data,
+	.clock_data	= &ipa_clock_data,
 };
diff --git a/drivers/net/ipa/ipa_data-sdm845.c b/drivers/net/ipa/ipa_data-sdm845.c
index bd92b619e7fec..f8fee8d3ca42a 100644
--- a/drivers/net/ipa/ipa_data-sdm845.c
+++ b/drivers/net/ipa/ipa_data-sdm845.c
@@ -329,6 +329,26 @@ static struct ipa_mem_data ipa_mem_data = {
 	.smem_size	= 0x00002000,
 };
 
+static struct ipa_clock_data ipa_clock_data = {
+	.core_clock_rate	= 75 * 1000 * 1000,	/* Hz */
+	/* Interconnect rates are in 1000 byte/second units */
+	.interconnect = {
+		[IPA_INTERCONNECT_MEMORY] = {
+			.peak_rate	= 600000,	/* 600 MBps */
+			.average_rate	= 80000,	/* 80 MBps */
+		},
+		/* Average rate is unused for the next two interconnects */
+		[IPA_INTERCONNECT_IMEM] = {
+			.peak_rate	= 350000,	/* 350 MBps */
+			.average_rate	= 0,		/* unused */
+		},
+		[IPA_INTERCONNECT_CONFIG] = {
+			.peak_rate	= 40000,	/* 40 MBps */
+			.average_rate	= 0,		/* unused */
+		},
+	},
+};
+
 /* Configuration data for the SDM845 SoC. */
 const struct ipa_data ipa_data_sdm845 = {
 	.version	= IPA_VERSION_3_5_1,
@@ -336,4 +356,5 @@ const struct ipa_data ipa_data_sdm845 = {
 	.endpoint_data	= ipa_gsi_endpoint_data,
 	.resource_data	= &ipa_resource_data,
 	.mem_data	= &ipa_mem_data,
+	.clock_data	= &ipa_clock_data,
 };
-- 
2.20.1