Commit 0ebdf116 authored by Thierry Reding's avatar Thierry Reding
Browse files

firmware: tegra: Enable BPMP support on Tegra234 



Enable support for the BPMP on Tegra234 to avoid relying on Tegra194
being enabled to pull in the needed OF device ID table entry.

On simulation platforms the BPMP hasn't booted up yet by the time we
probe the BPMP driver and the BPMP hasn't had a chance to mark the
doorbell as ringable by the CCPLEX. This corresponding check in the
BPMP driver will therefore fail. Work around this by disabling the
check on simulation platforms.

Reviewed-by: default avatarJon Hunter <jonathanh@nvidia.com>
Signed-off-by: default avatarThierry Reding <treding@nvidia.com>
parent e5c88986

drivers/firmware/tegra/bpmp.c

+2 −1
Original line number Diff line number Diff line
@@ -856,7 +856,8 @@ static const struct tegra_bpmp_soc tegra210_soc = { 


static const struct of_device_id tegra_bpmp_match[] = {

#if IS_ENABLED(CONFIG_ARCH_TEGRA_186_SOC) || \

    IS_ENABLED(CONFIG_ARCH_TEGRA_194_SOC)

    IS_ENABLED(CONFIG_ARCH_TEGRA_194_SOC) || \

    IS_ENABLED(CONFIG_ARCH_TEGRA_234_SOC)

	{ .compatible = "nvidia,tegra186-bpmp", .data = &tegra186_soc },

#endif

#if IS_ENABLED(CONFIG_ARCH_TEGRA_210_SOC)

drivers/mailbox/tegra-hsp.c

+8 −1
Original line number Diff line number Diff line
@@ -13,6 +13,8 @@ 
#include <linux/pm.h>

#include <linux/slab.h>



#include <soc/tegra/fuse.h>



#include <dt-bindings/mailbox/tegra186-hsp.h>



#include "mailbox.h"
@@ -322,7 +324,12 @@ static int tegra_hsp_doorbell_startup(struct mbox_chan *chan) 
	if (!ccplex)

		return -ENODEV;



	if (!tegra_hsp_doorbell_can_ring(db))

	/*

	 * On simulation platforms the BPMP hasn't had a chance yet to mark

	 * the doorbell as ringable by the CCPLEX, so we want to skip extra

	 * checks here.

	 */

	if (tegra_is_silicon() && !tegra_hsp_doorbell_can_ring(db))

		return -ENODEV;



	spin_lock_irqsave(&hsp->lock, flags);

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