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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: Peter De Schrijver <pdeschrijver@nvidia.com>
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Hector Martin <marcan@marcan.st>
Tested-by: Andre Heider <a.heider@gmail.com>
Tested-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
hifive-unleashed-5.1
Peter De Schrijver 2018-01-25 16:00:13 +02:00 committed by Thierry Reding
parent 56327f54d9
commit a263394a09
1 changed files with 12 additions and 0 deletions
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12
drivers/soc/tegra/pmc.c
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@ -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,