[PATCH v3 4/4] soc/tegra: pmc: apply MBIST work around fo Tegra210

Peter De Schrijver
2018-01-23T09:22:49Z

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

Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
---
drivers/soc/tegra/pmc.c | 5 +++++
1 file changed, 5 insertions(+)

diff --git a/drivers/soc/tegra/pmc.c b/drivers/soc/tegra/pmc.c
index ce62a47..c4eff4b 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;
@@ -431,6 +432,9 @@ static int tegra_powergate_power_up(struct tegra_powergate *pg,

usleep_range(10, 20);

+ if (pg->pmc->soc->needs_mbist_war)
+ tegra210_clk_handle_mbist_war(pg->id);
+
if (disable_clocks)
tegra_powergate_disable_clocks(pg);

@@ -1815,6 +1819,7 @@ static void tegra20_pmc_setup_irq_polarity(struct tegra_pmc *pmc,
.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,
--
1.9.1