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| author | Peter De Schrijver <pdeschrijver@nvidia.com> | 2018-01-25 16:00:13 +0200 |
|---|---|---|
| committer | Thierry Reding <treding@nvidia.com> | 2018-03-08 17:02:24 +0100 |
| commit | a263394a096e3578eb8dd77039b961c84a7392e7 (patch) | |
| tree | 3a8ecb905329b6496fc920afe539850302c80ed3 /drivers/soc | |
| parent | 56327f54d95c05791fd01e59a9dc03e3a4eafd21 (diff) | |
| download | linux-0-day-a263394a096e3578eb8dd77039b961c84a7392e7.tar.gz linux-0-day-a263394a096e3578eb8dd77039b961c84a7392e7.tar.xz | |
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>
Diffstat (limited to 'drivers/soc')
| -rw-r--r-- | drivers/soc/tegra/pmc.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/soc/tegra/pmc.c b/drivers/soc/tegra/pmc.c index a2df230bf51a0..010fbc928cd39 100644 --- a/drivers/soc/tegra/pmc.c +++ b/drivers/soc/tegra/pmc.c @@ -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, |