diff options
| author | Simon Glass <sjg@chromium.org> | 2011-11-29 17:37:23 -0800 |
|---|---|---|
| committer | Gerrit <chrome-bot@google.com> | 2011-12-12 10:23:42 -0800 |
| commit | 341a71f7c6c8e70c0d92bb0557903ff3e31ebe98 (patch) | |
| tree | 9047a4bfc02eb0310735a5b81ec1a73719901314 | |
| parent | 6f22f8c501202a48d386465d2808afd1bdc6825e (diff) | |
tegra: Update clocks after fdt is available
Some clocks cannot be set to the final value until we have the fdt
and know what PLLP should be set to. For now the only example is
coresight - so this adds a call to update this clock once the A9
is up and running with the fdt.
BUG=chromium-os:23496
TEST=build and boot on Seaboard, T33, Kaen
Change-Id: I7a07306cfb0a24cec4dcdb08cac78659a1afc73f
Reviewed-on: https://gerrit.chromium.org/gerrit/12251
Commit-Ready: Simon Glass <sjg@chromium.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>
| -rw-r--r-- | arch/arm/cpu/armv7/tegra-common/ap20.c | 5 | ||||
| -rw-r--r-- | arch/arm/cpu/armv7/tegra-common/clock.c | 1 | ||||
| -rw-r--r-- | arch/arm/include/asm/arch-tegra/ap20.h | 5 |
3 files changed, 11 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv7/tegra-common/ap20.c b/arch/arm/cpu/armv7/tegra-common/ap20.c index 774567374a5..529ce84860b 100644 --- a/arch/arm/cpu/armv7/tegra-common/ap20.c +++ b/arch/arm/cpu/armv7/tegra-common/ap20.c @@ -605,3 +605,8 @@ void tegra_start(void) is_tegra_processor_reset = check_is_tegra_processor_reset(); } +void tegra_update_clocks(void) +{ + /* Enable CoreSight with new clock speed */ + clock_enable_coresight(1); +} diff --git a/arch/arm/cpu/armv7/tegra-common/clock.c b/arch/arm/cpu/armv7/tegra-common/clock.c index 8964c66208c..01caab6b9fa 100644 --- a/arch/arm/cpu/armv7/tegra-common/clock.c +++ b/arch/arm/cpu/armv7/tegra-common/clock.c @@ -1384,6 +1384,7 @@ int clock_early_init(ulong pllp_base) clock_set_rate(CLOCK_ID_PERIPH, 432, osc_freq_mhz, 1, 8); clock_set_rate(CLOCK_ID_CGENERAL, 600, osc_freq_mhz, 0, 8); } + tegra_update_clocks(); return 0; } diff --git a/arch/arm/include/asm/arch-tegra/ap20.h b/arch/arm/include/asm/arch-tegra/ap20.h index 6c1e57eea31..3d834e678d9 100644 --- a/arch/arm/include/asm/arch-tegra/ap20.h +++ b/arch/arm/include/asm/arch-tegra/ap20.h @@ -129,3 +129,8 @@ int ap20_get_num_cpus(void); * @return SOC type - see TEGRA_SOC... */ int tegra_get_chip_type(void); + +/** + * Update any clocks that need to be adjusted after the fdt is available + */ +void tegra_update_clocks(void); |