From 099a6644f5be438dd63c81ba942e7ffbb2c59099 Mon Sep 17 00:00:00 2001 From: Thierry Reding Date: Wed, 9 Sep 2015 15:29:22 +0200 Subject: soc/tegra: Provide per-SoC Kconfig symbols Move per-SoC generation Kconfig symbols to drivers/soc/tegra/Kconfig to gather them all in a single place. This directory is a natural location for these options since it already contains the drivers that are shared across 32-bit and 64-bit ARM architectures. Signed-off-by: Thierry Reding --- arch/arm/mach-tegra/Kconfig | 52 +-------------------------------------------- 1 file changed, 1 insertion(+), 51 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/mach-tegra/Kconfig b/arch/arm/mach-tegra/Kconfig index 0fa4c5f8b1be..5db40b25bdc4 100644 --- a/arch/arm/mach-tegra/Kconfig +++ b/arch/arm/mach-tegra/Kconfig @@ -1,4 +1,4 @@ -menuconfig ARCH_TEGRA +config ARCH_TEGRA bool "NVIDIA Tegra" if ARCH_MULTI_V7 select ARCH_REQUIRE_GPIOLIB select ARCH_SUPPORTS_TRUSTED_FOUNDATIONS @@ -16,53 +16,3 @@ menuconfig ARCH_TEGRA select USB_ULPI_VIEWPORT if USB_PHY help This enables support for NVIDIA Tegra based systems. - -if ARCH_TEGRA - -config ARCH_TEGRA_2x_SOC - bool "Enable support for Tegra20 family" - select ARCH_NEEDS_CPU_IDLE_COUPLED if SMP - select ARM_ERRATA_720789 - select ARM_ERRATA_754327 if SMP - select ARM_ERRATA_764369 if SMP - select PINCTRL_TEGRA20 - select PL310_ERRATA_727915 if CACHE_L2X0 - select PL310_ERRATA_769419 if CACHE_L2X0 - select TEGRA_TIMER - help - Support for NVIDIA Tegra AP20 and T20 processors, based on the - ARM CortexA9MP CPU and the ARM PL310 L2 cache controller - -config ARCH_TEGRA_3x_SOC - bool "Enable support for Tegra30 family" - select ARM_ERRATA_754322 - select ARM_ERRATA_764369 if SMP - select PINCTRL_TEGRA30 - select PL310_ERRATA_769419 if CACHE_L2X0 - select TEGRA_TIMER - help - Support for NVIDIA Tegra T30 processor family, based on the - ARM CortexA9MP CPU and the ARM PL310 L2 cache controller - -config ARCH_TEGRA_114_SOC - bool "Enable support for Tegra114 family" - select ARM_ERRATA_798181 if SMP - select ARM_L1_CACHE_SHIFT_6 - select HAVE_ARM_ARCH_TIMER - select PINCTRL_TEGRA114 - select TEGRA_TIMER - help - Support for NVIDIA Tegra T114 processor family, based on the - ARM CortexA15MP CPU - -config ARCH_TEGRA_124_SOC - bool "Enable support for Tegra124 family" - select ARM_L1_CACHE_SHIFT_6 - select HAVE_ARM_ARCH_TIMER - select PINCTRL_TEGRA124 - select TEGRA_TIMER - help - Support for NVIDIA Tegra T124 processor family, based on the - ARM CortexA15MP CPU - -endif -- cgit v1.2.3 From 5883ac2010ef801cb9beb9606d3d50b3dca87113 Mon Sep 17 00:00:00 2001 From: Jon Hunter Date: Thu, 19 Nov 2015 14:19:47 +0000 Subject: ARM: tegra: Ensure entire dcache is flushed on entering LP0/1 Tegra support several low-power (LPx) states, which are: - LP0: CPU + Core voltage off and DRAM in self-refresh - LP1: CPU voltage off and DRAM in self-refresh - LP2: CPU voltage off When entering any of the above states the tegra_disable_clean_inv_dcache() function is called to flush the dcache. The function tegra_disable_clean_inv_dcache() will either flush the entire data cache or up to the Level of Unification Inner Shareable (LoUIS) depending on the value in r0. When tegra_disable_clean_inv_dcache() is called by tegra20_sleep_core_finish() or tegra30_sleep_core_finish(), to enter LP0 and LP1 power state, the r0 register contains a physical memory address which will not be equal to TEGRA_FLUSH_CACHE_ALL (1) and so the data cache will be only flushed to the LoUIS. However, when tegra_disable_clean_inv_dcache() called by tegra_sleep_cpu_finish() to enter to LP2 power state, r0 is set to TEGRA_FLUSH_CACHE_ALL to flush the entire dcache. Please note that tegra20_sleep_core_finish(), tegra30_sleep_core_finish() and tegra_sleep_cpu_finish() are called by the boot CPU once all other CPUs have been disabled and so it seems appropriate to flush the entire cache at this stage. Therefore, ensure that r0 is set to TEGRA_FLUSH_CACHE_ALL when calling tegra_disable_clean_inv_dcache() from tegra20_sleep_core_finish() and tegra30_sleep_core_finish(). Signed-off-by: Jon Hunter Reviewed-by: Joseph Lo Signed-off-by: Thierry Reding --- arch/arm/mach-tegra/sleep-tegra20.S | 3 +++ arch/arm/mach-tegra/sleep-tegra30.S | 3 +++ 2 files changed, 6 insertions(+) (limited to 'arch/arm') diff --git a/arch/arm/mach-tegra/sleep-tegra20.S b/arch/arm/mach-tegra/sleep-tegra20.S index e6b684e14322..f5d19667484e 100644 --- a/arch/arm/mach-tegra/sleep-tegra20.S +++ b/arch/arm/mach-tegra/sleep-tegra20.S @@ -231,8 +231,11 @@ ENDPROC(tegra20_cpu_is_resettable_soon) * tegra20_tear_down_core in IRAM */ ENTRY(tegra20_sleep_core_finish) + mov r4, r0 /* Flush, disable the L1 data cache and exit SMP */ + mov r0, #TEGRA_FLUSH_CACHE_ALL bl tegra_disable_clean_inv_dcache + mov r0, r4 mov32 r3, tegra_shut_off_mmu add r3, r3, r0 diff --git a/arch/arm/mach-tegra/sleep-tegra30.S b/arch/arm/mach-tegra/sleep-tegra30.S index 9a2f0b051e10..16e5ff03383c 100644 --- a/arch/arm/mach-tegra/sleep-tegra30.S +++ b/arch/arm/mach-tegra/sleep-tegra30.S @@ -242,8 +242,11 @@ ENDPROC(tegra30_cpu_shutdown) * tegra30_tear_down_core in IRAM */ ENTRY(tegra30_sleep_core_finish) + mov r4, r0 /* Flush, disable the L1 data cache and exit SMP */ + mov r0, #TEGRA_FLUSH_CACHE_ALL bl tegra_disable_clean_inv_dcache + mov r0, r4 /* * Preload all the address literals that are needed for the -- cgit v1.2.3 From a262e87ff354f12447bb6268bd63edf7ba1c20e0 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Mon, 23 Nov 2015 14:51:29 +0100 Subject: ARM: tegra: select USB_ULPI from EHCI rather than platform For historic reasons, the tegra platform selects USB_ULPI from architecture code, but that hasn't really made sense for a long time, as the only user of that code is the Tegra EHCI driver that has its own Kconfig symbol. This removes the 'select' statements from mach-tegra and drivers/soc/tegra and adds them with the device driver that actually needs them. Signed-off-by: Arnd Bergmann Signed-off-by: Thierry Reding --- arch/arm/mach-tegra/Kconfig | 2 -- 1 file changed, 2 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/mach-tegra/Kconfig b/arch/arm/mach-tegra/Kconfig index 5db40b25bdc4..6f7bec07cda6 100644 --- a/arch/arm/mach-tegra/Kconfig +++ b/arch/arm/mach-tegra/Kconfig @@ -12,7 +12,5 @@ config ARCH_TEGRA select ARCH_HAS_RESET_CONTROLLER select RESET_CONTROLLER select SOC_BUS - select USB_ULPI if USB_PHY - select USB_ULPI_VIEWPORT if USB_PHY help This enables support for NVIDIA Tegra based systems. -- cgit v1.2.3