Commit 602dbbac authored by Stefan Kristiansson's avatar Stefan Kristiansson Committed by Jassi Brar
Browse files

mailbox: tegra: add support for Tegra264 



Tegra264 has a slightly different doorbell register layout than
previous chips.

Acked-by: default avatarThierry Reding <treding@nvidia.com>
Signed-off-by: default avatarStefan Kristiansson <stefank@nvidia.com>
Signed-off-by: default avatarPeter De Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: default avatarJassi Brar <jaswinder.singh@linaro.org>
parent af9dbbbb

drivers/mailbox/tegra-hsp.c

+14 −2
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0-only

/*

 * Copyright (c) 2016-2018, NVIDIA CORPORATION.  All rights reserved.

 * Copyright (c) 2016-2023, NVIDIA CORPORATION.  All rights reserved.

 */



#include <linux/delay.h>
@@ -97,6 +97,7 @@ struct tegra_hsp_soc { 
	const struct tegra_hsp_db_map *map;

	bool has_per_mb_ie;

	bool has_128_bit_mb;

	unsigned int reg_stride;

};



struct tegra_hsp {
@@ -279,7 +280,7 @@ tegra_hsp_doorbell_create(struct tegra_hsp *hsp, const char *name, 
		return ERR_PTR(-ENOMEM);



	offset = (1 + (hsp->num_sm / 2) + hsp->num_ss + hsp->num_as) * SZ_64K;

	offset += index * 0x100;

	offset += index * hsp->soc->reg_stride;



	db->channel.regs = hsp->regs + offset;

	db->channel.hsp = hsp;
@@ -916,24 +917,35 @@ static const struct tegra_hsp_soc tegra186_hsp_soc = { 
	.map = tegra186_hsp_db_map,

	.has_per_mb_ie = false,

	.has_128_bit_mb = false,

	.reg_stride = 0x100,

};



static const struct tegra_hsp_soc tegra194_hsp_soc = {

	.map = tegra186_hsp_db_map,

	.has_per_mb_ie = true,

	.has_128_bit_mb = false,

	.reg_stride = 0x100,

};



static const struct tegra_hsp_soc tegra234_hsp_soc = {

	.map = tegra186_hsp_db_map,

	.has_per_mb_ie = false,

	.has_128_bit_mb = true,

	.reg_stride = 0x100,

};



static const struct tegra_hsp_soc tegra264_hsp_soc = {

	.map = tegra186_hsp_db_map,

	.has_per_mb_ie = false,

	.has_128_bit_mb = true,

	.reg_stride = 0x1000,

};



static const struct of_device_id tegra_hsp_match[] = {

	{ .compatible = "nvidia,tegra186-hsp", .data = &tegra186_hsp_soc },

	{ .compatible = "nvidia,tegra194-hsp", .data = &tegra194_hsp_soc },

	{ .compatible = "nvidia,tegra234-hsp", .data = &tegra234_hsp_soc },

	{ .compatible = "nvidia,tegra264-hsp", .data = &tegra264_hsp_soc },

	{ }

};