Commit 37c241ed authored by Stephen Warren's avatar Stephen Warren

ARM: tegra: turn on UART A clock at boot

Some boards use UART D for the main serial console, and some use UART A.
UART D's clock is listed in board-dt-tegra20.c's clock table, whereas
UART A's clock is not. This causes the clock code to think UART A's
clock is unsed. The common clock framework turns off unused clocks at
boot time. This makes the kernel appear to hang. Add UART A's clock into
the clock table to prevent this. Eventually, this requirement should be
handled by the UART driver, and/or properties in a board-specific device
tree file.
Signed-off-by: default avatarStephen Warren <swarren@nvidia.com>
parent 4cbe5a55
...@@ -71,6 +71,7 @@ struct of_dev_auxdata tegra20_auxdata_lookup[] __initdata = { ...@@ -71,6 +71,7 @@ struct of_dev_auxdata tegra20_auxdata_lookup[] __initdata = {
static __initdata struct tegra_clk_init_table tegra_dt_clk_init_table[] = { static __initdata struct tegra_clk_init_table tegra_dt_clk_init_table[] = {
/* name parent rate enabled */ /* name parent rate enabled */
{ "uarta", "pll_p", 216000000, true },
{ "uartd", "pll_p", 216000000, true }, { "uartd", "pll_p", 216000000, true },
{ "usbd", "clk_m", 12000000, false }, { "usbd", "clk_m", 12000000, false },
{ "usb2", "clk_m", 12000000, false }, { "usb2", "clk_m", 12000000, false },
......
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