This is an additional power down control. Signed-off-by: Lucas Stach <dev@xxxxxxxxxx> --- arch/arm/mach-tegra/include/mach/tegra124-car.h | 19 +++++++++++++++++++ arch/arm/mach-tegra/tegra_avp_init.c | 9 +++++++++ 2 files changed, 28 insertions(+) create mode 100644 arch/arm/mach-tegra/include/mach/tegra124-car.h diff --git a/arch/arm/mach-tegra/include/mach/tegra124-car.h b/arch/arm/mach-tegra/include/mach/tegra124-car.h new file mode 100644 index 0000000..1fb924d --- /dev/null +++ b/arch/arm/mach-tegra/include/mach/tegra124-car.h @@ -0,0 +1,19 @@ +/* + * Copyright (C) 2014 Lucas Stach <l.stach@xxxxxxxxxxxxxx> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +/* Register definitions */ +#define CRC_PLLX_MISC_3 0x518 +#define CRC_PLLX_MISC_3_IDDQ (1 << 3) diff --git a/arch/arm/mach-tegra/tegra_avp_init.c b/arch/arm/mach-tegra/tegra_avp_init.c index 53e81d9..cc8b0e2 100644 --- a/arch/arm/mach-tegra/tegra_avp_init.c +++ b/arch/arm/mach-tegra/tegra_avp_init.c @@ -25,6 +25,7 @@ #include <mach/tegra20-pmc.h> #include <mach/tegra30-car.h> #include <mach/tegra30-flow.h> +#include <mach/tegra124-car.h> /* instruct the PMIC to enable the CPU power rail */ static void enable_maincomplex_powerrail(void) @@ -107,6 +108,14 @@ static void init_pllx(void) chiptype = tegra_get_chiptype(); + /* disable IDDQ on T124 */ + if (chiptype == TEGRA124) { + reg = readl(TEGRA_CLK_RESET_BASE + CRC_PLLX_MISC_3); + reg &= ~CRC_PLLX_MISC_3_IDDQ; + writel(reg, TEGRA_CLK_RESET_BASE + CRC_PLLX_MISC_3); + tegra_ll_delay_usec(2); + } + osc_freq = (readl(TEGRA_CLK_RESET_BASE + CRC_OSC_CTRL) & CRC_OSC_CTRL_OSC_FREQ_MASK) >> CRC_OSC_CTRL_OSC_FREQ_SHIFT; -- 1.9.3 _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox
