[PATCH v2 3/6] memory: tegra: Add Tegra234 support

Thierry Reding
2021-12-10T16:47:56Z

The memory controller and external memory controller found on Tegra234
is similar to the version found on earlier SoCs but supports a number of
new memory clients.

Add initial memory client definitions for the Tegra234 so that the SMMU
stream ID override registers can be properly programmed at boot time.

Signed-off-by: Thierry Reding <treding@nvidia.com>
---
drivers/memory/tegra/Makefile | 1 +
drivers/memory/tegra/mc.c | 3 ++
drivers/memory/tegra/mc.h | 7 ++-
drivers/memory/tegra/tegra186-emc.c | 3 ++
drivers/memory/tegra/tegra234.c | 81 +++++++++++++++++++++++++++++
5 files changed, 94 insertions(+), 1 deletion(-)
create mode 100644 drivers/memory/tegra/tegra234.c

diff --git a/drivers/memory/tegra/Makefile b/drivers/memory/tegra/Makefile
index c992e87782d2..1df0b43e40b1 100644
--- a/drivers/memory/tegra/Makefile
+++ b/drivers/memory/tegra/Makefile
@@ -9,6 +9,7 @@ tegra-mc-$(CONFIG_ARCH_TEGRA_132_SOC) += tegra124.o
tegra-mc-$(CONFIG_ARCH_TEGRA_210_SOC) += tegra210.o
tegra-mc-$(CONFIG_ARCH_TEGRA_186_SOC) += tegra186.o
tegra-mc-$(CONFIG_ARCH_TEGRA_194_SOC) += tegra186.o tegra194.o
+tegra-mc-$(CONFIG_ARCH_TEGRA_194_SOC) += tegra186.o tegra234.o

obj-$(CONFIG_TEGRA_MC) += tegra-mc.o

diff --git a/drivers/memory/tegra/mc.c b/drivers/memory/tegra/mc.c
index 44b4a4080920..bf3abb6d8354 100644
--- a/drivers/memory/tegra/mc.c
+++ b/drivers/memory/tegra/mc.c
@@ -44,6 +44,9 @@ static const struct of_device_id tegra_mc_of_match[] = {
#endif
#ifdef CONFIG_ARCH_TEGRA_194_SOC
{ .compatible = "nvidia,tegra194-mc", .data = &tegra194_mc_soc },
+#endif
+#ifdef CONFIG_ARCH_TEGRA_234_SOC
+ { .compatible = "nvidia,tegra234-mc", .data = &tegra234_mc_soc },
#endif
{ /* sentinel */ }
};
diff --git a/drivers/memory/tegra/mc.h b/drivers/memory/tegra/mc.h
index 1e492989c363..062886e94c04 100644
--- a/drivers/memory/tegra/mc.h
+++ b/drivers/memory/tegra/mc.h
@@ -137,6 +137,10 @@ extern const struct tegra_mc_soc tegra186_mc_soc;
extern const struct tegra_mc_soc tegra194_mc_soc;
#endif

+#ifdef CONFIG_ARCH_TEGRA_234_SOC
+extern const struct tegra_mc_soc tegra234_mc_soc;
+#endif
+
#if defined(CONFIG_ARCH_TEGRA_3x_SOC) || \
defined(CONFIG_ARCH_TEGRA_114_SOC) || \
defined(CONFIG_ARCH_TEGRA_124_SOC) || \
@@ -147,7 +151,8 @@ extern const struct tegra_mc_ops tegra30_mc_ops;
#endif

#if defined(CONFIG_ARCH_TEGRA_186_SOC) || \
- defined(CONFIG_ARCH_TEGRA_194_SOC)
+ defined(CONFIG_ARCH_TEGRA_194_SOC) || \
+ defined(CONFIG_ARCH_TEGRA_234_SOC)
extern const struct tegra_mc_ops tegra186_mc_ops;
#endif

diff --git a/drivers/memory/tegra/tegra186-emc.c b/drivers/memory/tegra/tegra186-emc.c
index 746c4ef2c0af..54b47ca33483 100644
--- a/drivers/memory/tegra/tegra186-emc.c
+++ b/drivers/memory/tegra/tegra186-emc.c
@@ -272,6 +272,9 @@ static const struct of_device_id tegra186_emc_of_match[] = {
#endif
#if defined(CONFIG_ARCH_TEGRA_194_SOC)
{ .compatible = "nvidia,tegra194-emc" },
+#endif
+#if defined(CONFIG_ARCH_TEGRA_234_SOC)
+ { .compatible = "nvidia,tegra234-emc" },
#endif
{ /* sentinel */ }
};
diff --git a/drivers/memory/tegra/tegra234.c b/drivers/memory/tegra/tegra234.c
new file mode 100644
index 000000000000..45efc5139960
--- /dev/null
+++ b/drivers/memory/tegra/tegra234.c
@@ -0,0 +1,81 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2021 NVIDIA CORPORATION. All rights reserved.
+ */
+
+#include <soc/tegra/mc.h>
+
+#include <dt-bindings/memory/tegra234-mc.h>
+
+#include "mc.h"
+
+static const struct tegra_mc_client tegra234_mc_clients[] = {
+ {
+ .id = TEGRA234_MEMORY_CLIENT_SDMMCRAB,
+ .name = "sdmmcrab",
+ .sid = TEGRA234_SID_SDMMC4,
+ .regs = {
+ .sid = {
+ .override = 0x318,
+ .security = 0x31c,
+ },
+ },
+ }, {
+ .id = TEGRA234_MEMORY_CLIENT_SDMMCWAB,
+ .name = "sdmmcwab",
+ .sid = TEGRA234_SID_SDMMC4,
+ .regs = {
+ .sid = {
+ .override = 0x338,
+ .security = 0x33c,
+ },
+ },
+ }, {
+ .id = TEGRA234_MEMORY_CLIENT_BPMPR,
+ .name = "bpmpr",
+ .sid = TEGRA234_SID_BPMP,
+ .regs = {
+ .sid = {
+ .override = 0x498,
+ .security = 0x49c,
+ },
+ },
+ }, {
+ .id = TEGRA234_MEMORY_CLIENT_BPMPW,
+ .name = "bpmpw",
+ .sid = TEGRA234_SID_BPMP,
+ .regs = {
+ .sid = {
+ .override = 0x4a0,
+ .security = 0x4a4,
+ },
+ },
+ }, {
+ .id = TEGRA234_MEMORY_CLIENT_BPMPDMAR,
+ .name = "bpmpdmar",
+ .sid = TEGRA234_SID_BPMP,
+ .regs = {
+ .sid = {
+ .override = 0x4a8,
+ .security = 0x4ac,
+ },
+ },
+ }, {
+ .id = TEGRA234_MEMORY_CLIENT_BPMPDMAW,
+ .name = "bpmpdmaw",
+ .sid = TEGRA234_SID_BPMP,
+ .regs = {
+ .sid = {
+ .override = 0x4b0,
+ .security = 0x4b4,
+ },
+ },
+ },
+};
+
+const struct tegra_mc_soc tegra234_mc_soc = {
+ .num_clients = ARRAY_SIZE(tegra234_mc_clients),
+ .clients = tegra234_mc_clients,
+ .num_address_bits = 40,
+ .ops = &tegra186_mc_ops,
+};
--
2.34.1