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Commit a263394a authored by Peter De Schrijver's avatar Peter De Schrijver Committed by Thierry Reding
Browse files

soc/tegra: pmc: MBIST work around for Tegra210 



Apply the memory built-in self test work around when ungating certain
Tegra210 power domains.

Signed-off-by: default avatarPeter De Schrijver <pdeschrijver@nvidia.com>
Reviewed-by: default avatarJon Hunter <jonathanh@nvidia.com>
Tested-by: default avatarJon Hunter <jonathanh@nvidia.com>
Tested-by: default avatarHector Martin <marcan@marcan.st>
Tested-by: default avatarAndre Heider <a.heider@gmail.com>
Tested-by: default avatarMikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: default avatarThierry Reding <treding@nvidia.com>
parent 56327f54

drivers/soc/tegra/pmc.c

+12 −0
Original line number Diff line number Diff line
@@ -153,6 +153,7 @@ struct tegra_pmc_soc { 


	bool has_tsense_reset;

	bool has_gpu_clamps;

	bool needs_mbist_war;



	const struct tegra_io_pad_soc *io_pads;

	unsigned int num_io_pads;
@@ -396,6 +397,11 @@ static int tegra_powergate_reset_deassert(struct tegra_powergate *pg) 
	return 0;

}



int __weak tegra210_clk_handle_mbist_war(unsigned int id)

{

	return 0;

}



static int tegra_powergate_power_up(struct tegra_powergate *pg,

				    bool disable_clocks)

{
@@ -431,6 +437,11 @@ static int tegra_powergate_power_up(struct tegra_powergate *pg, 


	usleep_range(10, 20);



	if (pg->pmc->soc->needs_mbist_war)

		err = tegra210_clk_handle_mbist_war(pg->id);

	if (err)

		goto disable_clks;



	if (disable_clocks)

		tegra_powergate_disable_clocks(pg);
@@ -1815,6 +1826,7 @@ static const struct tegra_pmc_soc tegra210_pmc_soc = { 
	.cpu_powergates = tegra210_cpu_powergates,

	.has_tsense_reset = true,

	.has_gpu_clamps = true,

	.needs_mbist_war = true,

	.num_io_pads = ARRAY_SIZE(tegra210_io_pads),

	.io_pads = tegra210_io_pads,

	.regs = &tegra20_pmc_regs,