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soc/tegra: cbb: Add support for CBB fabrics in Tegra254

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Add support for CBB 2.0 based fabrics in Tegra254 SoC using ACPI.
Fabrics reporting errors are: C2C, GPU and Display_Cluster. Tegra254
uses a hardware based lookup to get target node address, so the
target_map tables for each fabric are no longer needed.

Signed-off-by: Sumit Gupta <sumitg@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Sumit Gupta 2025-07-03 16:08:29 +05:30 • committed by Thierry Reding
parent fa4854a9f5
commit 84daa158bb
1 changed files with 58 additions and 0 deletions
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58
drivers/soc/tegra/cbb/tegra234-cbb.c
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@ -117,6 +117,15 @@ enum tegra264_cbb_fabric_ids {
T264_RSVD7_FABRIC_ID,
};
enum t254_cbb_fabric_ids {
T254_DCE_FABRIC_ID = 19,
T254_DISP_CLUSTER_FABRIC_ID = 25,
T254_C2C_FABRIC_ID = 26,
T254_GPU_FABRIC_ID = 27,
T254_DISP_CLUSTER_1_FABRIC_ID = 28,
T254_MAX_FABRIC_ID,
};
struct tegra234_target_lookup {
const char *name;
unsigned int offset;
@ -1418,6 +1427,52 @@ static const struct tegra234_cbb_fabric tegra264_vision_cbb_fabric = {
.firewall_wr_ctl = 0x5c8,
};
static const struct tegra234_fabric_lookup t254_cbb_fab_list[] = {
[T254_C2C_FABRIC_ID] = { "c2c-fabric", true },
[T254_DISP_CLUSTER_FABRIC_ID] = { "display-cluster-fabric", true },
[T254_GPU_FABRIC_ID] = { "gpu-fabric", true },
};
static const struct tegra234_cbb_fabric t254_c2c_fabric = {
.fab_id = T254_C2C_FABRIC_ID,
.fab_list = t254_cbb_fab_list,
.errors = tegra241_cbb_errors,
.max_errors = ARRAY_SIZE(tegra241_cbb_errors),
.err_intr_enbl = 0xf,
.err_status_clr = 0x1ff007f,
.notifier_offset = 0x50000,
.off_mask_erd = 0x14004,
.firewall_base = 0x40000,
.firewall_ctl = 0x9b0,
.firewall_wr_ctl = 0x9a8,
};
static const struct tegra234_cbb_fabric t254_disp_fabric = {
.fab_id = T254_DISP_CLUSTER_FABRIC_ID,
.fab_list = t254_cbb_fab_list,
.errors = tegra241_cbb_errors,
.max_errors = ARRAY_SIZE(tegra241_cbb_errors),
.err_intr_enbl = 0x1,
.err_status_clr = 0x1ff007f,
.notifier_offset = 0x50000,
.firewall_base = 0x30000,
.firewall_ctl = 0x810,
.firewall_wr_ctl = 0x808,
};
static const struct tegra234_cbb_fabric t254_gpu_fabric = {
.fab_id = T254_GPU_FABRIC_ID,
.fab_list = t254_cbb_fab_list,
.errors = tegra241_cbb_errors,
.max_errors = ARRAY_SIZE(tegra241_cbb_errors),
.err_intr_enbl = 0x1f,
.err_status_clr = 0x1ff007f,
.notifier_offset = 0x50000,
.firewall_base = 0x30000,
.firewall_ctl = 0x930,
.firewall_wr_ctl = 0x928,
};
static const struct of_device_id tegra234_cbb_dt_ids[] = {
{ .compatible = "nvidia,tegra234-cbb-fabric", .data = &tegra234_cbb_fabric },
{ .compatible = "nvidia,tegra234-aon-fabric", .data = &tegra234_aon_fabric },
@ -1442,6 +1497,9 @@ struct tegra234_cbb_acpi_uid {
static const struct tegra234_cbb_acpi_uid tegra234_cbb_acpi_uids[] = {
{ "NVDA1070", "1", &tegra241_cbb_fabric },
{ "NVDA1070", "2", &tegra241_bpmp_fabric },
{ "NVDA1070", "3", &t254_c2c_fabric },
{ "NVDA1070", "4", &t254_disp_fabric },
{ "NVDA1070", "5", &t254_gpu_fabric },
{ },
};