Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

8ca302e9 · Linus Torvalds <[email protected]> · 2017-07-04 14:34:51 -07:00

Pull ARM SoC platform updates from Arnd Bergmann:
 "SoC platform changes (arch/arm/mach-*). This merge window, the bulk is
  for a few platforms:

   - Andres Färber adds initial support for the Actions Semi S500 (aka
     'owl') platform, a close relative of the S900 platform he adds for
     arm64.

   - in mach-omap2, we remove more legacy code

   - Rockchips gains support for the RV1108 SoC designed for camera
     applications.

   - For Atmel, we gain support for MMU-less SoCs (SAME70/V71/S70/V70)

   - Minor updates for other platforms, including davinci, s3c64xx,
     prima2, stm32, broadcom nsp, amlogic, pxa, imx and renesas"

* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (74 commits)
  ARM: owl: smp: Drop bogus holding pen
  ARM: owl: Drop custom machine
  ARM: owl: smp: Implement SPS power-gating for CPU2 and CPU3
  soc: actions: owl-sps: Factor out owl_sps_set_pg() for power-gating
  soc: actions: Add Owl SPS
  dt-bindings: power: Add Owl SPS power domains
  MAINTAINERS: Update Actions Semi section with SPS
  ARM: owl: Implement CPU enable-method for S500
  MAINTAINERS: Add Actions Semi Owl section
  ARM: Prepare Actions Semi S500
  ARM: socfpga: Increase max number of GPIOs
  ARM: stm32: Introduce MACH_STM32F469 flag
  ARM: prima2: remove redundant select CPU_V7
  ARM: davinci: fix const warnings
  ARM: shmobile: pm-rmobile: Use GENPD_FLAG_ALWAYS_ON
  ARM: OMAP4: hwmod_data: add SHAM crypto accelerator
  ARM: OMAP4: hwmod data: add des
  ARM: OMAP4: hwmod data: add aes2
  ARM: OMAP4: hwmod data: add aes1
  ARM: pxa: Delete an error message for a failed memory allocation in pxa3xx_u2d_probe()
  ...

Commit: 8ca302e9c61a1b8852f4bd4def8e7ff59f4c729a
Parents: 612341bd · 18cfd942

Merge commit. Changes below are compared with the first parent: 612341bd.

Changes

90 files changed · +1766 −1146

File	Status	Add	Del	Content
Documentation/arm/Atmel/README	modified	+37	−1	View file
Documentation/devicetree/bindings/arm/atmel-at91.txt	modified	+30	−0	View file
Documentation/devicetree/bindings/power/actions,owl-sps.txt	added	+17	−0	View file
MAINTAINERS	modified	+16	−0	View file
arch/arm/Kconfig	modified	+3	−0	View file
arch/arm/Kconfig.debug	modified	+41	−0	View file
arch/arm/Makefile	modified	+1	−0	View file
arch/arm/mach-actions/Kconfig	added	+16	−0	View file
arch/arm/mach-actions/Makefile	added	+3	−0	View file
arch/arm/mach-actions/headsmp.S	added	+52	−0	View file
arch/arm/mach-actions/platsmp.c	added	+171	−0	View file
arch/arm/mach-at91/Kconfig	modified	+15	−1	View file
arch/arm/mach-at91/Makefile	modified	+2	−2	View file
arch/arm/mach-at91/Makefile.boot	added	+3	−0	View file
arch/arm/mach-at91/generic.h	modified	+2	−0	View file
arch/arm/mach-at91/pm.c	modified	+178	−28	View file
arch/arm/mach-at91/pm.h	modified	+5	−0	View file
arch/arm/mach-at91/pm_data-offsets.c	modified	+3	−0	View file
arch/arm/mach-at91/pm_suspend.S	modified	+54	−19	View file
arch/arm/mach-at91/sama5.c	modified	+18	−1	View file
arch/arm/mach-at91/samv7.c	added	+25	−0	View file
arch/arm/mach-bcm/Kconfig	modified	+2	−0	View file
arch/arm/mach-davinci/board-dm646x-evm.c	modified	+2	−2	View file
arch/arm/mach-davinci/devices-da8xx.c	modified	+30	−0	View file
arch/arm/mach-davinci/include/mach/da8xx.h	modified	+5	−0	View file
arch/arm/mach-davinci/pdata-quirks.c	modified	+2	−2	View file
arch/arm/mach-imx/Kconfig	modified	+1	−0	View file
arch/arm/mach-imx/cpu.c	modified	+3	−0	View file
arch/arm/mach-imx/mxc.h	modified	+6	−0	View file
arch/arm/mach-imx/pm-imx6.c	modified	+4	−2	View file
arch/arm/mach-meson/Kconfig	modified	+1	−0	View file
arch/arm/mach-omap1/dma.c	modified	+1	−4	View file
arch/arm/mach-omap1/timer.c	modified	+1	−3	View file
arch/arm/mach-omap2/Makefile	modified	+0	−4	View file
arch/arm/mach-omap2/board-n8x0.c	modified	+6	−8	View file
arch/arm/mach-omap2/clockdomain.c	modified	+8	−0	View file
arch/arm/mach-omap2/clockdomain.h	modified	+2	−0	View file
arch/arm/mach-omap2/cm.h	modified	+5	−2	View file
arch/arm/mach-omap2/cm2xxx_3xxx.h	modified	+2	−2	View file
arch/arm/mach-omap2/cm33xx.c	modified	+2	−2	View file
arch/arm/mach-omap2/cm3xxx.c	modified	+2	−1	View file
arch/arm/mach-omap2/cm_common.c	modified	+19	−12	View file
arch/arm/mach-omap2/cminst44xx.c	modified	+20	−9	View file
arch/arm/mach-omap2/devices.c	modified	+0	−175	View file
arch/arm/mach-omap2/hsmmc.c	modified	+1	−4	View file
arch/arm/mach-omap2/io.c	modified	+14	−45	View file
arch/arm/mach-omap2/mcbsp.c	modified	+0	−70	View file
arch/arm/mach-omap2/omap-wakeupgen.c	modified	+62	−6	View file
arch/arm/mach-omap2/omap_device.c	modified	+1	−4	View file
arch/arm/mach-omap2/omap_hwmod.c	modified	+140	−28	View file
arch/arm/mach-omap2/omap_hwmod_3xxx_data.c	modified	+1	−2	View file
arch/arm/mach-omap2/omap_hwmod_44xx_data.c	modified	+145	−1	View file
arch/arm/mach-omap2/opp.c	deleted	+0	−104	View before deletion
arch/arm/mach-omap2/opp3xxx_data.c	modified	+0	−86	View file
arch/arm/mach-omap2/opp4xxx_data.c	modified	+0	−79	View file
arch/arm/mach-omap2/pm.c	modified	+1	−1	View file
arch/arm/mach-omap2/pmu.c	deleted	+0	−97	View before deletion
arch/arm/mach-omap2/prcm-common.h	modified	+7	−0	View file
arch/arm/mach-omap2/prcm_mpu44xx.c	modified	+2	−2	View file
arch/arm/mach-omap2/prcm_mpu_44xx_54xx.h	modified	+3	−1	View file
arch/arm/mach-omap2/prm.h	modified	+1	−1	View file
arch/arm/mach-omap2/prm2xxx_3xxx.h	modified	+2	−2	View file
arch/arm/mach-omap2/prm33xx.c	modified	+2	−2	View file
arch/arm/mach-omap2/prm3xxx.c	modified	+8	−11	View file
arch/arm/mach-omap2/prm44xx.c	modified	+2	−61	View file
arch/arm/mach-omap2/prm_common.c	modified	+16	−16	View file
arch/arm/mach-omap2/prminst44xx.c	modified	+9	−7	View file
arch/arm/mach-omap2/sr_device.c	modified	+4	−11	View file
arch/arm/mach-omap2/timer.c	modified	+50	−150	View file
arch/arm/mach-omap2/wd_timer.c	modified	+0	−28	View file
arch/arm/mach-prima2/Kconfig	modified	+0	−1	View file
arch/arm/mach-pxa/include/mach/magician.h	modified	+1	−0	View file
arch/arm/mach-pxa/magician.c	modified	+83	−1	View file
arch/arm/mach-pxa/pm.c	modified	+1	−3	View file
arch/arm/mach-pxa/pxa3xx-ulpi.c	modified	+2	−4	View file
arch/arm/mach-rockchip/rockchip.c	modified	+1	−0	View file
arch/arm/mach-s3c64xx/Kconfig	modified	+0	−1	View file
arch/arm/mach-shmobile/pm-rmobile.c	modified	+4	−15	View file
arch/arm/mach-stm32/Kconfig	modified	+5	−0	View file
drivers/soc/Kconfig	modified	+1	−0	View file
drivers/soc/Makefile	modified	+1	−0	View file
drivers/soc/actions/Kconfig	added	+16	−0	View file
drivers/soc/actions/Makefile	added	+2	−0	View file
drivers/soc/actions/owl-sps-helper.c	added	+51	−0	View file
drivers/soc/actions/owl-sps.c	added	+224	−0	View file
drivers/soc/atmel/soc.c	modified	+24	−0	View file
drivers/soc/atmel/soc.h	modified	+26	−0	View file
include/dt-bindings/power/owl-s500-powergate.h	added	+19	−0	View file
include/linux/platform_data/atmel.h	modified	+7	−22	View file
include/linux/soc/actions/owl-sps.h	added	+11	−0	View file

Only the first 600 diff lines are shown. Download the complete patch.

Documentation/arm/Atmel/README

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diff --git a/Documentation/arm/Atmel/README b/Documentation/arm/Atmel/README
index 6ca78f8..afb13c1 100644
--- a/Documentation/arm/Atmel/README
+++ b/Documentation/arm/Atmel/README
@@ -16,7 +16,7 @@ git branches/tags and email subject always contain this "at91" sub-string.
 
 AT91 SoCs
 ---------
-Documentation and detailled datasheet for each product are available on
+Documentation and detailed datasheet for each product are available on
 the Atmel website: http://www.atmel.com.
 
   Flavors:
@@ -101,6 +101,42 @@ the Atmel website: http://www.atmel.com.
         + Datasheet
           http://www.atmel.com/Images/Atmel-11267-32-bit-Cortex-A5-Microcontroller-SAMA5D2_Datasheet.pdf
 
+    * ARM Cortex-M7 MCUs
+      - sams70 family
+        - sams70j19
+        - sams70j20
+        - sams70j21
+        - sams70n19
+        - sams70n20
+        - sams70n21
+        - sams70q19
+        - sams70q20
+        - sams70q21
+        + Datasheet
+          http://www.atmel.com/Images/Atmel-11242-32-bit-Cortex-M7-Microcontroller-SAM-S70Q-SAM-S70N-SAM-S70J_Datasheet.pdf
+
+      - samv70 family
+        - samv70j19
+        - samv70j20
+        - samv70n19
+        - samv70n20
+        - samv70q19
+        - samv70q20
+        + Datasheet
+          http://www.atmel.com/Images/Atmel-11297-32-bit-Cortex-M7-Microcontroller-SAM-V70Q-SAM-V70N-SAM-V70J_Datasheet.pdf
+
+      - samv71 family
+        - samv71j19
+        - samv71j20
+        - samv71j21
+        - samv71n19
+        - samv71n20
+        - samv71n21
+        - samv71q19
+        - samv71q20
+        - samv71q21
+        + Datasheet
+          http://www.atmel.com/Images/Atmel-44003-32-bit-Cortex-M7-Microcontroller-SAM-V71Q-SAM-V71N-SAM-V71J_Datasheet.pdf
 
 Linux kernel information
 ------------------------

Documentation/devicetree/bindings/arm/atmel-at91.txt

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diff --git a/Documentation/devicetree/bindings/arm/atmel-at91.txt b/Documentation/devicetree/bindings/arm/atmel-at91.txt
index 799af90..91cb8e4 100644
--- a/Documentation/devicetree/bindings/arm/atmel-at91.txt
+++ b/Documentation/devicetree/bindings/arm/atmel-at91.txt
@@ -41,6 +41,36 @@ compatible: must be one of:
        - "atmel,sama5d43"
        - "atmel,sama5d44"
 
+ * "atmel,samv7" for MCUs using a Cortex-M7, shall be extended with the specific
+   SoC family:
+    o "atmel,sams70" shall be extended with the specific MCU compatible:
+       - "atmel,sams70j19"
+       - "atmel,sams70j20"
+       - "atmel,sams70j21"
+       - "atmel,sams70n19"
+       - "atmel,sams70n20"
+       - "atmel,sams70n21"
+       - "atmel,sams70q19"
+       - "atmel,sams70q20"
+       - "atmel,sams70q21"
+    o "atmel,samv70" shall be extended with the specific MCU compatible:
+       - "atmel,samv70j19"
+       - "atmel,samv70j20"
+       - "atmel,samv70n19"
+       - "atmel,samv70n20"
+       - "atmel,samv70q19"
+       - "atmel,samv70q20"
+    o "atmel,samv71" shall be extended with the specific MCU compatible:
+       - "atmel,samv71j19"
+       - "atmel,samv71j20"
+       - "atmel,samv71j21"
+       - "atmel,samv71n19"
+       - "atmel,samv71n20"
+       - "atmel,samv71n21"
+       - "atmel,samv71q19"
+       - "atmel,samv71q20"
+       - "atmel,samv71q21"
+
 Chipid required properties:
 - compatible: Should be "atmel,sama5d2-chipid"
 - reg : Should contain registers location and length

Documentation/devicetree/bindings/power/actions,owl-sps.txt

View file

diff --git a/Documentation/devicetree/bindings/power/actions,owl-sps.txt b/Documentation/devicetree/bindings/power/actions,owl-sps.txt
new file mode 100644
index 0000000..007b9a7
--- /dev/null
+++ b/Documentation/devicetree/bindings/power/actions,owl-sps.txt
@@ -0,0 +1,17 @@
+Actions Semi Owl Smart Power System (SPS)
+
+Required properties:
+- compatible          :  "actions,s500-sps" for S500
+- reg                 :  Offset and length of the register set for the device.
+- #power-domain-cells :  Must be 1.
+                         See macros in:
+                          include/dt-bindings/power/owl-s500-powergate.h for S500
+
+
+Example:
+
+		sps: power-controller@b01b0100 {
+			compatible = "actions,s500-sps";
+			reg = <0xb01b0100 0x100>;
+			#power-domain-cells = <1>;
+		};

MAINTAINERS

View file

diff --git a/MAINTAINERS b/MAINTAINERS
index b5a5ef1..08e5e8f 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1036,6 +1036,22 @@ S:	Maintained
 F:	drivers/amba/
 F:	include/linux/amba/bus.h
 
+ARM/ACTIONS SEMI ARCHITECTURE
+M:	Andreas Färber <[email protected]>
+L:	[email protected] (moderated for non-subscribers)
+S:	Maintained
+N:	owl
+F:	arch/arm/mach-actions/
+F:	arch/arm/boot/dts/owl-*
+F:	arch/arm64/boot/dts/actions/
+F:	drivers/clocksource/owl-*
+F:	drivers/soc/actions/
+F:	include/dt-bindings/power/owl-*
+F:	include/linux/soc/actions/
+F:	Documentation/devicetree/bindings/arm/actions.txt
+F:	Documentation/devicetree/bindings/power/actions,owl-sps.txt
+F:	Documentation/devicetree/bindings/timer/actions,owl-timer.txt
+
 ARM/ADS SPHERE MACHINE SUPPORT
 M:	Lennert Buytenhek <[email protected]>
 L:	[email protected] (moderated for non-subscribers)

arch/arm/Kconfig

View file

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 43f45d3..abd59fa 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -712,6 +712,8 @@ config ARCH_VIRT
 #
 source "arch/arm/mach-mvebu/Kconfig"
 
+source "arch/arm/mach-actions/Kconfig"
+
 source "arch/arm/mach-alpine/Kconfig"
 
 source "arch/arm/mach-artpec/Kconfig"
@@ -1462,6 +1464,7 @@ config ARM_PSCI
 # selected platforms.
 config ARCH_NR_GPIO
 	int
+	default 2048 if ARCH_SOCFPGA
 	default 1024 if ARCH_BRCMSTB || ARCH_SHMOBILE || ARCH_TEGRA || \
 		ARCH_ZYNQ
 	default 512 if ARCH_EXYNOS || ARCH_KEYSTONE || SOC_OMAP5 || \

arch/arm/Kconfig.debug

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diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index 426d271..447629d 100644
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -145,6 +145,15 @@ choice
 		  Say Y here if you want kernel low-level debugging support
 		  on the USART3 port of sama5d4.
 
+	config DEBUG_AT91_SAMV7_USART1
+		bool "Kernel low-level debugging via SAMV7 USART1"
+		select DEBUG_AT91_UART
+		depends on SOC_SAMV7
+		help
+		  Say Y here if you want the debug print routines to direct
+		  their output to the USART1 port on SAMV7 based
+		  machines.
+
 	config DEBUG_BCM2835
 		bool "Kernel low-level debugging on BCM2835 PL011 UART"
 		depends on ARCH_BCM2835 && ARCH_MULTI_V6
@@ -751,6 +760,7 @@ choice
 		  ARCH      DEBUG_UART_PHYS   DEBUG_UART_VIRT
 		  APQ8064   0x16640000        0xf0040000
 		  APQ8084   0xf995e000        0xfa75e000
+		  IPQ4019   0x078af000        0xf78af000
 		  MSM8X60   0x19c40000        0xf0040000
 		  MSM8960   0x16440000        0xf0040000
 		  MSM8974   0xf991e000        0xfa71e000
@@ -776,6 +786,30 @@ choice
 		  their output to the standard serial port on the RealView
 		  PB1176 platform.
 
+	config DEBUG_RV1108_UART0
+		bool "Kernel low-level debugging messages via Rockchip RV1108 UART0"
+		depends on ARCH_ROCKCHIP
+		select DEBUG_UART_8250
+		help
+		  Say Y here if you want kernel low-level debugging support
+                  on Rockchip RV1108 based platforms.
+
+	config DEBUG_RV1108_UART1
+		bool "Kernel low-level debugging messages via Rockchip RV1108 UART1"
+		depends on ARCH_ROCKCHIP
+		select DEBUG_UART_8250
+		help
+		  Say Y here if you want kernel low-level debugging support
+		  on Rockchip RV1108 based platforms.
+
+	config DEBUG_RV1108_UART2
+		bool "Kernel low-level debugging messages via Rockchip RV1108 UART2"
+		depends on ARCH_ROCKCHIP
+		select DEBUG_UART_8250
+		help
+		  Say Y here if you want kernel low-level debugging support
+		  on Rockchip RV1108 based platforms.
+
 	config DEBUG_RK29_UART0
 		bool "Kernel low-level debugging messages via Rockchip RK29 UART0"
 		depends on ARCH_ROCKCHIP
@@ -1465,6 +1499,9 @@ config DEBUG_UART_PHYS
 	default 0x10126000 if DEBUG_RK3X_UART1
 	default 0x101f1000 if DEBUG_VERSATILE
 	default 0x101fb000 if DEBUG_NOMADIK_UART
+	default 0x10210000 if DEBUG_RV1108_UART2
+	default 0x10220000 if DEBUG_RV1108_UART1
+	default 0x10230000 if DEBUG_RV1108_UART0
 	default 0x11002000 if DEBUG_MT8127_UART0
 	default 0x11006000 if DEBUG_MT6589_UART0
 	default 0x11009000 if DEBUG_MT8135_UART3
@@ -1481,6 +1518,7 @@ config DEBUG_UART_PHYS
 	default 0x3f201000 if DEBUG_BCM2836
 	default 0x3e000000 if DEBUG_BCM_KONA_UART
 	default 0x4000e400 if DEBUG_LL_UART_EFM32
+	default 0x40028000 if DEBUG_AT91_SAMV7_USART1
 	default 0x40081000 if DEBUG_LPC18XX_UART0
 	default 0x40090000 if DEBUG_LPC32XX
 	default 0x40100000 if DEBUG_PXA_UART1
@@ -1563,6 +1601,9 @@ config DEBUG_UART_PHYS
 
 config DEBUG_UART_VIRT
 	hex "Virtual base address of debug UART"
+	default 0xc881f000 if DEBUG_RV1108_UART2
+	default 0xc8821000 if DEBUG_RV1108_UART1
+	default 0xc8912000 if DEBUG_RV1108_UART0
 	default 0xe0000a00 if DEBUG_NETX_UART
 	default 0xe0010fe0 if ARCH_RPC
 	default 0xf0000be0 if ARCH_EBSA110

arch/arm/Makefile

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diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index 65f4e2a..47d3a1a 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -151,6 +151,7 @@ textofs-$(CONFIG_ARCH_AXXIA) := 0x00308000
 
 # Machine directory name.  This list is sorted alphanumerically
 # by CONFIG_* macro name.
+machine-$(CONFIG_ARCH_ACTIONS)		+= actions
 machine-$(CONFIG_ARCH_ALPINE)		+= alpine
 machine-$(CONFIG_ARCH_ARTPEC)		+= artpec
 machine-$(CONFIG_ARCH_AT91)		+= at91

arch/arm/mach-actions/Kconfig

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diff --git a/arch/arm/mach-actions/Kconfig b/arch/arm/mach-actions/Kconfig
new file mode 100644
index 0000000..ad9c5c8
--- /dev/null
+++ b/arch/arm/mach-actions/Kconfig
@@ -0,0 +1,16 @@
+menuconfig ARCH_ACTIONS
+	bool "Actions Semi SoCs"
+	depends on ARCH_MULTI_V7
+	select ARM_AMBA
+	select ARM_GIC
+	select ARM_GLOBAL_TIMER
+	select CACHE_L2X0
+	select CLKSRC_ARM_GLOBAL_TIMER_SCHED_CLOCK
+	select COMMON_CLK
+	select GENERIC_IRQ_CHIP
+	select HAVE_ARM_SCU if SMP
+	select HAVE_ARM_TWD if SMP
+	select OWL_PM_DOMAINS_HELPER
+	select OWL_TIMER
+	help
+	  This enables support for the Actions Semiconductor S500 SoC family.

arch/arm/mach-actions/Makefile

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diff --git a/arch/arm/mach-actions/Makefile b/arch/arm/mach-actions/Makefile
new file mode 100644
index 0000000..c0f1162
--- /dev/null
+++ b/arch/arm/mach-actions/Makefile
@@ -0,0 +1,3 @@
+obj-${CONFIG_SMP} += platsmp.o headsmp.o
+
+AFLAGS_headsmp.o := -Wa,-march=armv7-a

arch/arm/mach-actions/headsmp.S

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diff --git a/arch/arm/mach-actions/headsmp.S b/arch/arm/mach-actions/headsmp.S
new file mode 100644
index 0000000..65f53bd
--- /dev/null
+++ b/arch/arm/mach-actions/headsmp.S
@@ -0,0 +1,52 @@
+/*
+ * Copyright 2012 Actions Semi Inc.
+ * Author: Actions Semi, Inc.
+ *
+ * Copyright (c) 2017 Andreas Färber
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/linkage.h>
+#include <linux/init.h>
+
+ENTRY(owl_v7_invalidate_l1)
+	mov	r0, #0
+	mcr	p15, 0, r0, c7, c5, 0	@ invalidate I cache
+	mcr	p15, 2, r0, c0, c0, 0
+	mrc	p15, 1, r0, c0, c0, 0
+
+	ldr	r1, =0x7fff
+	and	r2, r1, r0, lsr #13
+
+	ldr	r1, =0x3ff
+
+	and	r3, r1, r0, lsr #3	@ NumWays - 1
+	add	r2, r2, #1		@ NumSets
+
+	and	r0, r0, #0x7
+	add	r0, r0, #4	@ SetShift
+
+	clz	r1, r3		@ WayShift
+	add	r4, r3, #1	@ NumWays
+1:	sub	r2, r2, #1	@ NumSets--
+	mov	r3, r4		@ Temp = NumWays
+2:	subs	r3, r3, #1	@ Temp--
+	mov	r5, r3, lsl r1
+	mov	r6, r2, lsl r0
+	orr	r5, r5, r6	@ Reg = (Temp<<WayShift)|(NumSets<<SetShift)
+	mcr	p15, 0, r5, c7, c6, 2
+	bgt	2b
+	cmp	r2, #0
+	bgt	1b
+	dsb
+	isb
+	mov	pc, lr
+ENDPROC(owl_v7_invalidate_l1)
+
+ENTRY(owl_secondary_startup)
+	bl	owl_v7_invalidate_l1
+	b	secondary_startup

arch/arm/mach-actions/platsmp.c

View file

diff --git a/arch/arm/mach-actions/platsmp.c b/arch/arm/mach-actions/platsmp.c
new file mode 100644
index 0000000..12a9e33
--- /dev/null
+++ b/arch/arm/mach-actions/platsmp.c
@@ -0,0 +1,171 @@
+/*
+ * Actions Semi Leopard
+ *
+ * This file is based on arm realview smp platform.
+ *
+ * Copyright 2012 Actions Semi Inc.
+ * Author: Actions Semi, Inc.
+ *
+ * Copyright (c) 2017 Andreas Färber
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/delay.h>
+#include <linux/io.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/smp.h>
+#include <linux/soc/actions/owl-sps.h>
+#include <asm/cacheflush.h>
+#include <asm/smp_plat.h>
+#include <asm/smp_scu.h>
+
+#define OWL_CPU1_ADDR	0x50
+#define OWL_CPU1_FLAG	0x5c
+
+#define OWL_CPUx_FLAG_BOOT	0x55aa
+
+#define OWL_SPS_PG_CTL_PWR_CPU2	BIT(5)
+#define OWL_SPS_PG_CTL_PWR_CPU3	BIT(6)
+#define OWL_SPS_PG_CTL_ACK_CPU2	BIT(21)
+#define OWL_SPS_PG_CTL_ACK_CPU3	BIT(22)
+
+static void __iomem *scu_base_addr;
+static void __iomem *sps_base_addr;
+static void __iomem *timer_base_addr;
+static int ncores;
+
+static DEFINE_SPINLOCK(boot_lock);
+
+void owl_secondary_startup(void);
+
+static int s500_wakeup_secondary(unsigned int cpu)
+{
+	int ret;
+
+	if (cpu > 3)
+		return -EINVAL;
+
+	/* The generic PM domain driver is not available this early. */
+	switch (cpu) {
+	case 2:
+		ret = owl_sps_set_pg(sps_base_addr,
+		                     OWL_SPS_PG_CTL_PWR_CPU2,
+				     OWL_SPS_PG_CTL_ACK_CPU2, true);
+		if (ret)
+			return ret;
+		break;
+	case 3:
+		ret = owl_sps_set_pg(sps_base_addr,
+		                     OWL_SPS_PG_CTL_PWR_CPU3,
+				     OWL_SPS_PG_CTL_ACK_CPU3, true);
+		if (ret)
+			return ret;
+		break;
+	}
+
+	/* wait for CPUx to run to WFE instruction */
+	udelay(200);
+
+	writel(virt_to_phys(owl_secondary_startup),
+	       timer_base_addr + OWL_CPU1_ADDR + (cpu - 1) * 4);
+	writel(OWL_CPUx_FLAG_BOOT,
+	       timer_base_addr + OWL_CPU1_FLAG + (cpu - 1) * 4);
+
+	dsb_sev();
+	mb();
+
+	return 0;
+}
+
+static int s500_smp_boot_secondary(unsigned int cpu, struct task_struct *idle)
+{
+	unsigned long timeout;
+	int ret;
+
+	ret = s500_wakeup_secondary(cpu);
+	if (ret)
+		return ret;
+
+	udelay(10);
+
+	spin_lock(&boot_lock);
+
+	smp_send_reschedule(cpu);
+
+	timeout = jiffies + (1 * HZ);
+	while (time_before(jiffies, timeout)) {
+		if (pen_release == -1)
+			break;
+	}
+
+	writel(0, timer_base_addr + OWL_CPU1_ADDR + (cpu - 1) * 4);
+	writel(0, timer_base_addr + OWL_CPU1_FLAG + (cpu - 1) * 4);
+
+	spin_unlock(&boot_lock);
+
+	return 0;
+}
+
+static void __init s500_smp_prepare_cpus(unsigned int max_cpus)
+{
+	struct device_node *node;
+
+	node = of_find_compatible_node(NULL, NULL, "actions,s500-timer");
+	if (!node) {
+		pr_err("%s: missing timer\n", __func__);
+		return;
+	}
+
+	timer_base_addr = of_iomap(node, 0);
+	if (!timer_base_addr) {
+		pr_err("%s: could not map timer registers\n", __func__);
+		return;
+	}
+
+	node = of_find_compatible_node(NULL, NULL, "actions,s500-sps");
+	if (!node) {
+		pr_err("%s: missing sps\n", __func__);
+		return;
+	}
+
+	sps_base_addr = of_iomap(node, 0);
+	if (!sps_base_addr) {
+		pr_err("%s: could not map sps registers\n", __func__);
+		return;
+	}
+
+	if (read_cpuid_part() == ARM_CPU_PART_CORTEX_A9) {
+		node = of_find_compatible_node(NULL, NULL, "arm,cortex-a9-scu");
+		if (!node) {
+			pr_err("%s: missing scu\n", __func__);
+			return;
+		}
+
+		scu_base_addr = of_iomap(node, 0);
+		if (!scu_base_addr) {
+			pr_err("%s: could not map scu registers\n", __func__);
+			return;
+		}
+
+		/*
+		 * While the number of cpus is gathered from dt, also get the
+		 * number of cores from the scu to verify this value when
+		 * booting the cores.
+		 */
+		ncores = scu_get_core_count(scu_base_addr);
+		pr_debug("%s: ncores %d\n", __func__, ncores);
+
+		scu_enable(scu_base_addr);
+	}
+}
+
+static const struct smp_operations s500_smp_ops __initconst = {
+	.smp_prepare_cpus = s500_smp_prepare_cpus,
+	.smp_boot_secondary = s500_smp_boot_secondary,
+};
+CPU_METHOD_OF_DECLARE(s500_smp, "actions,s500-smp", &s500_smp_ops);

arch/arm/mach-at91/Kconfig

View file

diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig
index cbd959b..d735e5f 100644
--- a/arch/arm/mach-at91/Kconfig
+++ b/arch/arm/mach-at91/Kconfig
@@ -1,6 +1,6 @@
 menuconfig ARCH_AT91
 	bool "Atmel SoCs"
-	depends on ARCH_MULTI_V4T || ARCH_MULTI_V5 || ARCH_MULTI_V7
+	depends on ARCH_MULTI_V4T || ARCH_MULTI_V5 || ARCH_MULTI_V7 || ARM_SINGLE_ARMV7M
 	select ARM_CPU_SUSPEND if PM
 	select COMMON_CLK_AT91
 	select GPIOLIB
@@ -8,6 +8,14 @@ menuconfig ARCH_AT91
 	select SOC_BUS
 
 if ARCH_AT91
+config SOC_SAMV7
+	bool "SAM Cortex-M7 family" if ARM_SINGLE_ARMV7M
+	select COMMON_CLK_AT91
+	select PINCTRL_AT91
+	help
+	  Select this if you are using an SoC from Atmel's SAME7, SAMS7 or SAMV7
+	  families.
+
 config SOC_SAMA5D2
 	bool "SAMA5D2 family"
 	depends on ARCH_MULTI_V7
@@ -53,6 +61,7 @@ config SOC_AT91RM9200
 	bool "AT91RM9200"
 	depends on ARCH_MULTI_V4T
 	select ATMEL_AIC_IRQ
+	select ATMEL_PM if PM
 	select ATMEL_ST
 	select CPU_ARM920T
 	select HAVE_AT91_USB_CLK
@@ -66,6 +75,7 @@ config SOC_AT91SAM9
 	bool "AT91SAM9"
 	depends on ARCH_MULTI_V5
 	select ATMEL_AIC_IRQ
+	select ATMEL_PM if PM
 	select ATMEL_SDRAMC
 	select CPU_ARM926T
 	select HAVE_AT91_SMD
@@ -124,9 +134,13 @@ config SOC_SAM_V7
 config SOC_SAMA5
 	bool
 	select ATMEL_AIC5_IRQ
+	select ATMEL_PM if PM
 	select ATMEL_SDRAMC
 	select MEMORY
 	select SOC_SAM_V7
 	select SRAM if PM
 
+config ATMEL_PM
+	bool
+
 endif

arch/arm/mach-at91/Makefile

View file

diff --git a/arch/arm/mach-at91/Makefile b/arch/arm/mach-at91/Makefile
index cfd8f60..ee34aa3 100644
--- a/arch/arm/mach-at91/Makefile
+++ b/arch/arm/mach-at91/Makefile
@@ -6,10 +6,10 @@
 obj-$(CONFIG_SOC_AT91RM9200)	+= at91rm9200.o
 obj-$(CONFIG_SOC_AT91SAM9)	+= at91sam9.o
 obj-$(CONFIG_SOC_SAMA5)		+= sama5.o
+obj-$(CONFIG_SOC_SAMV7)		+= samv7.o
 

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