clk: tegra: Fix clock sources for Tegra210 EMC

The EMC clock sources for Tegra210 currently incorrectly include pll_c2
and pll_c3. However, both of these should have been pll_mb as shown in
the TRM. If Tegra210 happens to be configured such that the pll_mb is the
default clock for the EMC, as configured by the bootloader, then this will
cause a system hang on boot. This is because the kernel will disable the
pll_mb when disabling unused clock as it appears to be unused when it is
not.

Also add the additional pll_p clock source for the EMC.

Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Acked-by: Rhyland Klein <rklein@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

diff --git a/drivers/clk/tegra/clk-tegra210.c b/drivers/clk/tegra/clk-tegra210.c
index 14c1841eb29bdaa34b73e8330d72585d639990a2..429eec96696e735a38998fc113daeb355244d8ef 100644 (file)
--- a/drivers/clk/tegra/clk-tegra210.c
+++ b/drivers/clk/tegra/clk-tegra210.c
@@ -243,7 +243,8 @@ static unsigned long tegra210_input_freq[] = {
 };
 
 static const char *mux_pllmcp_clkm[] = {
-       "pll_m", "pll_c", "pll_p", "clk_m", "pll_m_ud", "pll_c2", "pll_c3",
+       "pll_m", "pll_c", "pll_p", "clk_m", "pll_m_ud", "pll_mb", "pll_mb",
+       "pll_p",
 };
 #define mux_pllmcp_clkm_idx NULL