From: Johnny Liu <johnliu@nvidia.com>
To: Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Thierry Reding <thierry.reding@kernel.org>,
Jonathan Hunter <jonathanh@nvidia.com>,
"Prashant Gaikwad" <pgaikwad@nvidia.com>,
Stephen Boyd <sboyd@kernel.org>,
Brian Masney <bmasney+clk@redhat.com>,
Jerome Brunet <jbrunet+clk@baylibre.com>,
"Douglas Anderson" <dianders@chromium.org>,
Aniruddha Rao <anrao@nvidia.com>, <devicetree@vger.kernel.org>,
<linux-tegra@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<linux-clk@vger.kernel.org>
Cc: Johnny Liu <johnliu@nvidia.com>
Subject: [PATCH v2 3/4] firmware: tegra: bpmp: Add per-SoC EMC clock ID
Date: Wed, 28 Oct 2026 15:49:59 +0000 [thread overview]
Message-ID: <20261028155000.1205739-4-johnliu@nvidia.com> (raw)
In-Reply-To: <20261028155000.1205739-1-johnliu@nvidia.com>
The EMC clock ID differs per chip (TEGRA234_CLK_EMC=31,
TEGRA238_CLK_EMC=43, TEGRA264_CLK_EMC=290).
Add an emc_clk_id field to struct tegra_bpmp_soc and set it for
Tegra234, Tegra238 and Tegra264. Tegra186 and Tegra194 have no EMC clock
ID and leave it unset.
Signed-off-by: Johnny Liu <johnliu@nvidia.com>
---
drivers/firmware/tegra/bpmp.c | 7 +++++++
include/soc/tegra/bpmp.h | 1 +
2 files changed, 8 insertions(+)
diff --git a/drivers/firmware/tegra/bpmp.c b/drivers/firmware/tegra/bpmp.c
index beeb385870f5..06da888535dc 100644
--- a/drivers/firmware/tegra/bpmp.c
+++ b/drivers/firmware/tegra/bpmp.c
@@ -21,6 +21,10 @@
#include <soc/tegra/bpmp-abi.h>
#include <soc/tegra/ivc.h>
+#include <dt-bindings/clock/nvidia,tegra238.h>
+#include <dt-bindings/clock/nvidia,tegra264.h>
+#include <dt-bindings/clock/tegra234-clock.h>
+
#include "bpmp-private.h"
#define MSG_ACK BIT(0)
@@ -1158,14 +1162,17 @@ static const struct tegra_bpmp_soc tegra186_soc = {
static const struct tegra_bpmp_soc tegra234_soc = {
TEGRA186_BPMP_SOC_COMMON,
+ .emc_clk_id = TEGRA234_CLK_EMC,
};
static const struct tegra_bpmp_soc tegra238_soc = {
TEGRA186_BPMP_SOC_COMMON,
+ .emc_clk_id = TEGRA238_CLK_EMC,
};
static const struct tegra_bpmp_soc tegra264_soc = {
TEGRA186_BPMP_SOC_COMMON,
+ .emc_clk_id = TEGRA264_CLK_EMC,
};
#endif
diff --git a/include/soc/tegra/bpmp.h b/include/soc/tegra/bpmp.h
index f55db918ccb1..40e2db8e69cc 100644
--- a/include/soc/tegra/bpmp.h
+++ b/include/soc/tegra/bpmp.h
@@ -31,6 +31,7 @@ struct tegra_bpmp_soc {
const struct tegra_bpmp_ops *ops;
const struct tegra_bpmp_mbwt_soc *mbwt;
unsigned int num_resets;
+ unsigned int emc_clk_id;
};
struct tegra_bpmp_mb_data {
--
2.43.0
next prev parent reply other threads:[~2026-10-28 16:06 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-28 15:49 [PATCH v2 0/4] Add Tegra238 BPMP support and fix stale EMC clock rate Johnny Liu
2026-10-28 15:49 ` [PATCH v2 1/4] dt-bindings: firmware: tegra186-bpmp: Add Tegra238 BPMP Johnny Liu
2026-10-28 15:49 ` [PATCH v2 2/4] firmware: tegra: bpmp: Add Tegra238 support Johnny Liu
2026-10-28 15:49 ` Johnny Liu [this message]
2026-10-28 15:50 ` [PATCH v2 4/4] clk: tegra: bpmp: Do not cache the EMC clock rate Johnny Liu
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