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author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-02-21 15:27:22 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-02-21 15:27:22 -0800 |
commit | bab588fcfb6335c767d811a8955979f5440328e0 (patch) | |
tree | 2a862ddf47a82be885a8e7945a17cc3ff7a658b9 /arch/arm/mach-kirkwood | |
parent | 3298a3511f1e73255a8dc023efd909e569eea037 (diff) | |
parent | 9cb0d1babfcb1b4ac248c09425f7d5de1e771133 (diff) | |
download | linux-bab588fcfb6335c767d811a8955979f5440328e0.tar.gz linux-bab588fcfb6335c767d811a8955979f5440328e0.tar.bz2 linux-bab588fcfb6335c767d811a8955979f5440328e0.zip |
Merge tag 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC-specific updates from Arnd Bergmann:
"This is a larger set of new functionality for the existing SoC
families, including:
- vt8500 gains support for new CPU cores, notably the Cortex-A9 based
wm8850
- prima2 gains support for the "marco" SoC family, its SMP based
cousin
- tegra gains support for the new Tegra4 (Tegra114) family
- socfpga now supports a newer version of the hardware including SMP
- i.mx31 and bcm2835 are now using DT probing for their clocks
- lots of updates for sh-mobile
- OMAP updates for clocks, power management and USB
- i.mx6q and tegra now support cpuidle
- kirkwood now supports PCIe hot plugging
- tegra clock support is updated
- tegra USB PHY probing gets implemented diffently"
* tag 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (148 commits)
ARM: prima2: remove duplicate v7_invalidate_l1
ARM: shmobile: r8a7779: Correct TMU clock support again
ARM: prima2: fix __init section for cpu hotplug
ARM: OMAP: Consolidate OMAP USB-HS platform data (part 3/3)
ARM: OMAP: Consolidate OMAP USB-HS platform data (part 1/3)
arm: socfpga: Add SMP support for actual socfpga harware
arm: Add v7_invalidate_l1 to cache-v7.S
arm: socfpga: Add entries to enable make dtbs socfpga
arm: socfpga: Add new device tree source for actual socfpga HW
ARM: tegra: sort Kconfig selects for Tegra114
ARM: tegra: enable ARCH_REQUIRE_GPIOLIB for Tegra114
ARM: tegra: Fix build error w/ ARCH_TEGRA_114_SOC w/o ARCH_TEGRA_3x_SOC
ARM: tegra: Fix build error for gic update
ARM: tegra: remove empty tegra_smp_init_cpus()
ARM: shmobile: Register ARM architected timer
ARM: MARCO: fix the build issue due to gic-vic-to-irqchip move
ARM: shmobile: r8a7779: Correct TMU clock support
ARM: mxs_defconfig: Select CONFIG_DEVTMPFS_MOUNT
ARM: mxs: decrease mxs_clockevent_device.min_delta_ns to 2 clock cycles
ARM: mxs: use apbx bus clock to drive the timers on timrotv2
...
Diffstat (limited to 'arch/arm/mach-kirkwood')
-rw-r--r-- | arch/arm/mach-kirkwood/Makefile | 1 | ||||
-rw-r--r-- | arch/arm/mach-kirkwood/board-dt.c | 2 | ||||
-rw-r--r-- | arch/arm/mach-kirkwood/common.c | 23 | ||||
-rw-r--r-- | arch/arm/mach-kirkwood/common.h | 1 | ||||
-rw-r--r-- | arch/arm/mach-kirkwood/cpuidle.c | 73 | ||||
-rw-r--r-- | arch/arm/mach-kirkwood/include/mach/kirkwood.h | 3 | ||||
-rw-r--r-- | arch/arm/mach-kirkwood/pcie.c | 10 |
7 files changed, 31 insertions, 82 deletions
diff --git a/arch/arm/mach-kirkwood/Makefile b/arch/arm/mach-kirkwood/Makefile index 8d2e5a96247c..d6653095a1eb 100644 --- a/arch/arm/mach-kirkwood/Makefile +++ b/arch/arm/mach-kirkwood/Makefile @@ -19,7 +19,6 @@ obj-$(CONFIG_MACH_NET2BIG_V2) += netxbig_v2-setup.o lacie_v2-common.o obj-$(CONFIG_MACH_NET5BIG_V2) += netxbig_v2-setup.o lacie_v2-common.o obj-$(CONFIG_MACH_T5325) += t5325-setup.o -obj-$(CONFIG_CPU_IDLE) += cpuidle.o obj-$(CONFIG_ARCH_KIRKWOOD_DT) += board-dt.o obj-$(CONFIG_MACH_DREAMPLUG_DT) += board-dreamplug.o obj-$(CONFIG_MACH_ICONNECT_DT) += board-iconnect.o diff --git a/arch/arm/mach-kirkwood/board-dt.c b/arch/arm/mach-kirkwood/board-dt.c index d4af5c191c24..95cc04d14b65 100644 --- a/arch/arm/mach-kirkwood/board-dt.c +++ b/arch/arm/mach-kirkwood/board-dt.c @@ -98,6 +98,8 @@ static void __init kirkwood_dt_init(void) /* Setup root of clk tree */ kirkwood_of_clk_init(); + kirkwood_cpuidle_init(); + #ifdef CONFIG_KEXEC kexec_reinit = kirkwood_enable_pcie; #endif diff --git a/arch/arm/mach-kirkwood/common.c b/arch/arm/mach-kirkwood/common.c index b5ad4dff6b12..49792a0cd2d3 100644 --- a/arch/arm/mach-kirkwood/common.c +++ b/arch/arm/mach-kirkwood/common.c @@ -499,6 +499,28 @@ void __init kirkwood_wdt_init(void) orion_wdt_init(); } +/***************************************************************************** + * CPU idle + ****************************************************************************/ +static struct resource kirkwood_cpuidle_resource[] = { + { + .flags = IORESOURCE_MEM, + .start = DDR_OPERATION_BASE, + .end = DDR_OPERATION_BASE + 3, + }, +}; + +static struct platform_device kirkwood_cpuidle = { + .name = "kirkwood_cpuidle", + .id = -1, + .resource = kirkwood_cpuidle_resource, + .num_resources = 1, +}; + +void __init kirkwood_cpuidle_init(void) +{ + platform_device_register(&kirkwood_cpuidle); +} /***************************************************************************** * Time handling @@ -667,6 +689,7 @@ void __init kirkwood_init(void) kirkwood_xor1_init(); kirkwood_crypto_init(); + kirkwood_cpuidle_init(); #ifdef CONFIG_KEXEC kexec_reinit = kirkwood_enable_pcie; #endif diff --git a/arch/arm/mach-kirkwood/common.h b/arch/arm/mach-kirkwood/common.h index 283ab611e8da..e956d0277dd1 100644 --- a/arch/arm/mach-kirkwood/common.h +++ b/arch/arm/mach-kirkwood/common.h @@ -50,6 +50,7 @@ void kirkwood_nand_init(struct mtd_partition *parts, int nr_parts, int delay); void kirkwood_nand_init_rnb(struct mtd_partition *parts, int nr_parts, int (*dev_ready)(struct mtd_info *)); void kirkwood_audio_init(void); +void kirkwood_cpuidle_init(void); void kirkwood_restart(char, const char *); void kirkwood_clk_init(void); diff --git a/arch/arm/mach-kirkwood/cpuidle.c b/arch/arm/mach-kirkwood/cpuidle.c deleted file mode 100644 index f7304670f2f8..000000000000 --- a/arch/arm/mach-kirkwood/cpuidle.c +++ /dev/null @@ -1,73 +0,0 @@ -/* - * arch/arm/mach-kirkwood/cpuidle.c - * - * CPU idle Marvell Kirkwood SoCs - * - * This file is licensed under the terms of the GNU General Public - * License version 2. This program is licensed "as is" without any - * warranty of any kind, whether express or implied. - * - * The cpu idle uses wait-for-interrupt and DDR self refresh in order - * to implement two idle states - - * #1 wait-for-interrupt - * #2 wait-for-interrupt and DDR self refresh - */ - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/platform_device.h> -#include <linux/cpuidle.h> -#include <linux/io.h> -#include <linux/export.h> -#include <asm/proc-fns.h> -#include <asm/cpuidle.h> -#include <mach/kirkwood.h> - -#define KIRKWOOD_MAX_STATES 2 - -/* Actual code that puts the SoC in different idle states */ -static int kirkwood_enter_idle(struct cpuidle_device *dev, - struct cpuidle_driver *drv, - int index) -{ - writel(0x7, DDR_OPERATION_BASE); - cpu_do_idle(); - - return index; -} - -static struct cpuidle_driver kirkwood_idle_driver = { - .name = "kirkwood_idle", - .owner = THIS_MODULE, - .en_core_tk_irqen = 1, - .states[0] = ARM_CPUIDLE_WFI_STATE, - .states[1] = { - .enter = kirkwood_enter_idle, - .exit_latency = 10, - .target_residency = 100000, - .flags = CPUIDLE_FLAG_TIME_VALID, - .name = "DDR SR", - .desc = "WFI and DDR Self Refresh", - }, - .state_count = KIRKWOOD_MAX_STATES, -}; - -static DEFINE_PER_CPU(struct cpuidle_device, kirkwood_cpuidle_device); - -/* Initialize CPU idle by registering the idle states */ -static int kirkwood_init_cpuidle(void) -{ - struct cpuidle_device *device; - - device = &per_cpu(kirkwood_cpuidle_device, smp_processor_id()); - device->state_count = KIRKWOOD_MAX_STATES; - - cpuidle_register_driver(&kirkwood_idle_driver); - if (cpuidle_register_device(device)) { - pr_err("kirkwood_init_cpuidle: Failed registering\n"); - return -EIO; - } - return 0; -} - -device_initcall(kirkwood_init_cpuidle); diff --git a/arch/arm/mach-kirkwood/include/mach/kirkwood.h b/arch/arm/mach-kirkwood/include/mach/kirkwood.h index 041653a04a9c..a05563a31c95 100644 --- a/arch/arm/mach-kirkwood/include/mach/kirkwood.h +++ b/arch/arm/mach-kirkwood/include/mach/kirkwood.h @@ -60,8 +60,9 @@ * Register Map */ #define DDR_VIRT_BASE (KIRKWOOD_REGS_VIRT_BASE + 0x00000) +#define DDR_PHYS_BASE (KIRKWOOD_REGS_PHYS_BASE + 0x00000) #define DDR_WINDOW_CPU_BASE (DDR_VIRT_BASE + 0x1500) -#define DDR_OPERATION_BASE (DDR_VIRT_BASE + 0x1418) +#define DDR_OPERATION_BASE (DDR_PHYS_BASE + 0x1418) #define DEV_BUS_PHYS_BASE (KIRKWOOD_REGS_PHYS_BASE + 0x10000) #define DEV_BUS_VIRT_BASE (KIRKWOOD_REGS_VIRT_BASE + 0x10000) diff --git a/arch/arm/mach-kirkwood/pcie.c b/arch/arm/mach-kirkwood/pcie.c index a1c3ab6fc809..d96ad4c09972 100644 --- a/arch/arm/mach-kirkwood/pcie.c +++ b/arch/arm/mach-kirkwood/pcie.c @@ -247,13 +247,9 @@ static struct hw_pci kirkwood_pci __initdata = { static void __init add_pcie_port(int index, void __iomem *base) { - pr_info("Kirkwood PCIe port %d: ", index); - - if (orion_pcie_link_up(base)) { - pr_info("link up\n"); - pcie_port_map[num_pcie_ports++] = index; - } else - pr_info("link down, ignoring\n"); + pcie_port_map[num_pcie_ports++] = index; + pr_info("Kirkwood PCIe port %d: link %s\n", index, + orion_pcie_link_up(base) ? "up" : "down"); } void __init kirkwood_pcie_init(unsigned int portmask) |