From 4be052e1200ef9a574e499bb00b31a1d861bc219 Mon Sep 17 00:00:00 2001 From: Rob Herring Date: Fri, 17 Aug 2012 09:41:04 -0500 Subject: ARM: highbank: disable unused sdhci and gpio in dts These peripherals are not enabled in current systems, so turn them off. Signed-off-by: Rob Herring Acked-by: Arnd Bergmann --- arch/arm/boot/dts/highbank.dts | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/arm/boot/dts/highbank.dts b/arch/arm/boot/dts/highbank.dts index 0c6fc34821f9..28d58727b8c0 100644 --- a/arch/arm/boot/dts/highbank.dts +++ b/arch/arm/boot/dts/highbank.dts @@ -132,6 +132,7 @@ reg = <0xffe0e000 0x1000>; interrupts = <0 90 4>; clocks = <&eclk>; + status = "disabled"; }; memory-controller@fff00000 { @@ -156,6 +157,7 @@ interrupts = <0 14 4>; clocks = <&pclk>; clock-names = "apb_pclk"; + status = "disabled"; }; gpiof: gpio@fff31000 { @@ -166,6 +168,7 @@ interrupts = <0 15 4>; clocks = <&pclk>; clock-names = "apb_pclk"; + status = "disabled"; }; gpiog: gpio@fff32000 { @@ -176,6 +179,7 @@ interrupts = <0 16 4>; clocks = <&pclk>; clock-names = "apb_pclk"; + status = "disabled"; }; gpioh: gpio@fff33000 { @@ -186,6 +190,7 @@ interrupts = <0 17 4>; clocks = <&pclk>; clock-names = "apb_pclk"; + status = "disabled"; }; timer { -- cgit From 185bdffb4b2997a2d4ee2e88d52a6539bde59eea Mon Sep 17 00:00:00 2001 From: Rob Herring Date: Tue, 18 Sep 2012 21:03:42 -0500 Subject: ARM: highbank: enable coherent DMA for xgmac in dts Enable the xgmac to use the coherent DMA path in highbank.dts Signed-off-by: Rob Herring Acked-by: Arnd Bergmann --- arch/arm/boot/dts/highbank.dts | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/boot/dts/highbank.dts b/arch/arm/boot/dts/highbank.dts index 28d58727b8c0..e39a79a61e0c 100644 --- a/arch/arm/boot/dts/highbank.dts +++ b/arch/arm/boot/dts/highbank.dts @@ -308,12 +308,14 @@ compatible = "calxeda,hb-xgmac"; reg = <0xfff50000 0x1000>; interrupts = <0 77 4 0 78 4 0 79 4>; + dma-coherent; }; ethernet@fff51000 { compatible = "calxeda,hb-xgmac"; reg = <0xfff51000 0x1000>; interrupts = <0 80 4 0 81 4 0 82 4>; + dma-coherent; }; combophy0: combo-phy@fff58000 { -- cgit From 7d6ab9b8620bbca6718b36242113f4f069840641 Mon Sep 17 00:00:00 2001 From: Rob Herring Date: Thu, 25 Oct 2012 11:59:09 -0500 Subject: ARM: dts: Add Calxeda ECX-2000 support Separate out common dts pieces from highbank dts and add support for Calxeda ECX-2000 (Midway) SOC. Signed-off-by: Rob Herring Acked-by: Arnd Bergmann --- Documentation/devicetree/bindings/arm/calxeda.txt | 13 +- arch/arm/boot/dts/Makefile | 3 +- arch/arm/boot/dts/ecx-2000.dts | 104 ++++++++++ arch/arm/boot/dts/ecx-common.dtsi | 237 ++++++++++++++++++++++ arch/arm/boot/dts/highbank.dts | 219 +------------------- 5 files changed, 356 insertions(+), 220 deletions(-) create mode 100644 arch/arm/boot/dts/ecx-2000.dts create mode 100644 arch/arm/boot/dts/ecx-common.dtsi diff --git a/Documentation/devicetree/bindings/arm/calxeda.txt b/Documentation/devicetree/bindings/arm/calxeda.txt index 4755caaccba6..25fcf96795ca 100644 --- a/Documentation/devicetree/bindings/arm/calxeda.txt +++ b/Documentation/devicetree/bindings/arm/calxeda.txt @@ -1,8 +1,15 @@ -Calxeda Highbank Platforms Device Tree Bindings +Calxeda Platforms Device Tree Bindings ----------------------------------------------- -Boards with Calxeda Cortex-A9 based Highbank SOC shall have the following -properties. +Boards with Calxeda Cortex-A9 based ECX-1000 (Highbank) SOC shall have the +following properties. Required root node properties: - compatible = "calxeda,highbank"; + + +Boards with Calxeda Cortex-A15 based ECX-2000 SOC shall have the following +properties. + +Required root node properties: + - compatible = "calxeda,ecx-2000"; diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile index f37cf9fa5fa0..5cc95667fa3b 100644 --- a/arch/arm/boot/dts/Makefile +++ b/arch/arm/boot/dts/Makefile @@ -24,7 +24,8 @@ dtb-$(CONFIG_ARCH_EXYNOS) += exynos4210-origen.dtb \ exynos4210-smdkv310.dtb \ exynos4210-trats.dtb \ exynos5250-smdk5250.dtb -dtb-$(CONFIG_ARCH_HIGHBANK) += highbank.dtb +dtb-$(CONFIG_ARCH_HIGHBANK) += highbank.dtb \ + ecx-2000.dtb dtb-$(CONFIG_ARCH_INTEGRATOR) += integratorap.dtb \ integratorcp.dtb dtb-$(CONFIG_ARCH_LPC32XX) += ea3250.dtb phy3250.dtb diff --git a/arch/arm/boot/dts/ecx-2000.dts b/arch/arm/boot/dts/ecx-2000.dts new file mode 100644 index 000000000000..46477ac1de99 --- /dev/null +++ b/arch/arm/boot/dts/ecx-2000.dts @@ -0,0 +1,104 @@ +/* + * Copyright 2011-2012 Calxeda, Inc. + * + * 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 . + */ + +/dts-v1/; + +/* First 4KB has pen for secondary cores. */ +/memreserve/ 0x00000000 0x0001000; + +/ { + model = "Calxeda ECX-2000"; + compatible = "calxeda,ecx-2000"; + #address-cells = <2>; + #size-cells = <2>; + clock-ranges; + + cpus { + #address-cells = <1>; + #size-cells = <0>; + + cpu@0 { + compatible = "arm,cortex-a15"; + reg = <0>; + clocks = <&a9pll>; + clock-names = "cpu"; + }; + + cpu@1 { + compatible = "arm,cortex-a15"; + reg = <1>; + clocks = <&a9pll>; + clock-names = "cpu"; + }; + + cpu@2 { + compatible = "arm,cortex-a15"; + reg = <2>; + clocks = <&a9pll>; + clock-names = "cpu"; + }; + + cpu@3 { + compatible = "arm,cortex-a15"; + reg = <3>; + clocks = <&a9pll>; + clock-names = "cpu"; + }; + }; + + memory@0 { + name = "memory"; + device_type = "memory"; + reg = <0x00000000 0x00000000 0x00000000 0xff800000>; + }; + + memory@200000000 { + name = "memory"; + device_type = "memory"; + reg = <0x00000002 0x00000000 0x00000003 0x00000000>; + }; + + soc { + ranges = <0x00000000 0x00000000 0x00000000 0xffffffff>; + + timer { + compatible = "arm,cortex-a15-timer", "arm,armv7-timer"; interrupts = <1 13 0xf08>, + <1 14 0xf08>, + <1 11 0xf08>, + <1 10 0xf08>; + }; + + intc: interrupt-controller@fff11000 { + compatible = "arm,cortex-a15-gic"; + #interrupt-cells = <3>; + #size-cells = <0>; + #address-cells = <1>; + interrupt-controller; + interrupts = <1 9 0xf04>; + reg = <0xfff11000 0x1000>, + <0xfff12000 0x1000>, + <0xfff14000 0x2000>, + <0xfff16000 0x2000>; + }; + + pmu { + compatible = "arm,cortex-a9-pmu"; + interrupts = <0 76 4 0 75 4 0 74 4 0 73 4>; + }; + }; +}; + +/include/ "ecx-common.dtsi" diff --git a/arch/arm/boot/dts/ecx-common.dtsi b/arch/arm/boot/dts/ecx-common.dtsi new file mode 100644 index 000000000000..d61b535f682a --- /dev/null +++ b/arch/arm/boot/dts/ecx-common.dtsi @@ -0,0 +1,237 @@ +/* + * Copyright 2011-2012 Calxeda, Inc. + * + * 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 . + */ + +/ { + chosen { + bootargs = "console=ttyAMA0"; + }; + + soc { + #address-cells = <1>; + #size-cells = <1>; + compatible = "simple-bus"; + interrupt-parent = <&intc>; + + sata@ffe08000 { + compatible = "calxeda,hb-ahci"; + reg = <0xffe08000 0x10000>; + interrupts = <0 83 4>; + dma-coherent; + calxeda,port-phys = <&combophy5 0 &combophy0 0 + &combophy0 1 &combophy0 2 + &combophy0 3>; + }; + + sdhci@ffe0e000 { + compatible = "calxeda,hb-sdhci"; + reg = <0xffe0e000 0x1000>; + interrupts = <0 90 4>; + clocks = <&eclk>; + status = "disabled"; + }; + + memory-controller@fff00000 { + compatible = "calxeda,hb-ddr-ctrl"; + reg = <0xfff00000 0x1000>; + interrupts = <0 91 4>; + }; + + ipc@fff20000 { + compatible = "arm,pl320", "arm,primecell"; + reg = <0xfff20000 0x1000>; + interrupts = <0 7 4>; + clocks = <&pclk>; + clock-names = "apb_pclk"; + }; + + gpioe: gpio@fff30000 { + #gpio-cells = <2>; + compatible = "arm,pl061", "arm,primecell"; + gpio-controller; + reg = <0xfff30000 0x1000>; + interrupts = <0 14 4>; + clocks = <&pclk>; + clock-names = "apb_pclk"; + status = "disabled"; + }; + + gpiof: gpio@fff31000 { + #gpio-cells = <2>; + compatible = "arm,pl061", "arm,primecell"; + gpio-controller; + reg = <0xfff31000 0x1000>; + interrupts = <0 15 4>; + clocks = <&pclk>; + clock-names = "apb_pclk"; + status = "disabled"; + }; + + gpiog: gpio@fff32000 { + #gpio-cells = <2>; + compatible = "arm,pl061", "arm,primecell"; + gpio-controller; + reg = <0xfff32000 0x1000>; + interrupts = <0 16 4>; + clocks = <&pclk>; + clock-names = "apb_pclk"; + status = "disabled"; + }; + + gpioh: gpio@fff33000 { + #gpio-cells = <2>; + compatible = "arm,pl061", "arm,primecell"; + gpio-controller; + reg = <0xfff33000 0x1000>; + interrupts = <0 17 4>; + clocks = <&pclk>; + clock-names = "apb_pclk"; + status = "disabled"; + }; + + timer@fff34000 { + compatible = "arm,sp804", "arm,primecell"; + reg = <0xfff34000 0x1000>; + interrupts = <0 18 4>; + clocks = <&pclk>; + clock-names = "apb_pclk"; + }; + + rtc@fff35000 { + compatible = "arm,pl031", "arm,primecell"; + reg = <0xfff35000 0x1000>; + interrupts = <0 19 4>; + clocks = <&pclk>; + clock-names = "apb_pclk"; + }; + + serial@fff36000 { + compatible = "arm,pl011", "arm,primecell"; + reg = <0xfff36000 0x1000>; + interrupts = <0 20 4>; + clocks = <&pclk>; + clock-names = "apb_pclk"; + }; + + smic@fff3a000 { + compatible = "ipmi-smic"; + device_type = "ipmi"; + reg = <0xfff3a000 0x1000>; + interrupts = <0 24 4>; + reg-size = <4>; + reg-spacing = <4>; + }; + + sregs@fff3c000 { + compatible = "calxeda,hb-sregs"; + reg = <0xfff3c000 0x1000>; + + clocks { + #address-cells = <1>; + #size-cells = <0>; + + osc: oscillator { + #clock-cells = <0>; + compatible = "fixed-clock"; + clock-frequency = <33333000>; + }; + + ddrpll: ddrpll { + #clock-cells = <0>; + compatible = "calxeda,hb-pll-clock"; + clocks = <&osc>; + reg = <0x108>; + }; + + a9pll: a9pll { + #clock-cells = <0>; + compatible = "calxeda,hb-pll-clock"; + clocks = <&osc>; + reg = <0x100>; + }; + + a9periphclk: a9periphclk { + #clock-cells = <0>; + compatible = "calxeda,hb-a9periph-clock"; + clocks = <&a9pll>; + reg = <0x104>; + }; + + a9bclk: a9bclk { + #clock-cells = <0>; + compatible = "calxeda,hb-a9bus-clock"; + clocks = <&a9pll>; + reg = <0x104>; + }; + + emmcpll: emmcpll { + #clock-cells = <0>; + compatible = "calxeda,hb-pll-clock"; + clocks = <&osc>; + reg = <0x10C>; + }; + + eclk: eclk { + #clock-cells = <0>; + compatible = "calxeda,hb-emmc-clock"; + clocks = <&emmcpll>; + reg = <0x114>; + }; + + pclk: pclk { + #clock-cells = <0>; + compatible = "fixed-clock"; + clock-frequency = <150000000>; + }; + }; + }; + + dma@fff3d000 { + compatible = "arm,pl330", "arm,primecell"; + reg = <0xfff3d000 0x1000>; + interrupts = <0 92 4>; + clocks = <&pclk>; + clock-names = "apb_pclk"; + }; + + ethernet@fff50000 { + compatible = "calxeda,hb-xgmac"; + reg = <0xfff50000 0x1000>; + interrupts = <0 77 4 0 78 4 0 79 4>; + dma-coherent; + }; + + ethernet@fff51000 { + compatible = "calxeda,hb-xgmac"; + reg = <0xfff51000 0x1000>; + interrupts = <0 80 4 0 81 4 0 82 4>; + dma-coherent; + }; + + combophy0: combo-phy@fff58000 { + compatible = "calxeda,hb-combophy"; + #phy-cells = <1>; + reg = <0xfff58000 0x1000>; + phydev = <5>; + }; + + combophy5: combo-phy@fff5d000 { + compatible = "calxeda,hb-combophy"; + #phy-cells = <1>; + reg = <0xfff5d000 0x1000>; + phydev = <31>; + }; + }; +}; diff --git a/arch/arm/boot/dts/highbank.dts b/arch/arm/boot/dts/highbank.dts index e39a79a61e0c..a9ae5d32e80d 100644 --- a/arch/arm/boot/dts/highbank.dts +++ b/arch/arm/boot/dts/highbank.dts @@ -69,16 +69,8 @@ reg = <0x00000000 0xff900000>; }; - chosen { - bootargs = "console=ttyAMA0"; - }; - soc { - #address-cells = <1>; - #size-cells = <1>; - compatible = "simple-bus"; - interrupt-parent = <&intc>; - ranges; + ranges = <0x00000000 0x00000000 0xffffffff>; timer@fff10600 { compatible = "arm,cortex-a9-twd-timer"; @@ -117,178 +109,6 @@ interrupts = <0 76 4 0 75 4 0 74 4 0 73 4>; }; - sata@ffe08000 { - compatible = "calxeda,hb-ahci"; - reg = <0xffe08000 0x10000>; - interrupts = <0 83 4>; - calxeda,port-phys = <&combophy5 0 &combophy0 0 - &combophy0 1 &combophy0 2 - &combophy0 3>; - dma-coherent; - }; - - sdhci@ffe0e000 { - compatible = "calxeda,hb-sdhci"; - reg = <0xffe0e000 0x1000>; - interrupts = <0 90 4>; - clocks = <&eclk>; - status = "disabled"; - }; - - memory-controller@fff00000 { - compatible = "calxeda,hb-ddr-ctrl"; - reg = <0xfff00000 0x1000>; - interrupts = <0 91 4>; - }; - - ipc@fff20000 { - compatible = "arm,pl320", "arm,primecell"; - reg = <0xfff20000 0x1000>; - interrupts = <0 7 4>; - clocks = <&pclk>; - clock-names = "apb_pclk"; - }; - - gpioe: gpio@fff30000 { - #gpio-cells = <2>; - compatible = "arm,pl061", "arm,primecell"; - gpio-controller; - reg = <0xfff30000 0x1000>; - interrupts = <0 14 4>; - clocks = <&pclk>; - clock-names = "apb_pclk"; - status = "disabled"; - }; - - gpiof: gpio@fff31000 { - #gpio-cells = <2>; - compatible = "arm,pl061", "arm,primecell"; - gpio-controller; - reg = <0xfff31000 0x1000>; - interrupts = <0 15 4>; - clocks = <&pclk>; - clock-names = "apb_pclk"; - status = "disabled"; - }; - - gpiog: gpio@fff32000 { - #gpio-cells = <2>; - compatible = "arm,pl061", "arm,primecell"; - gpio-controller; - reg = <0xfff32000 0x1000>; - interrupts = <0 16 4>; - clocks = <&pclk>; - clock-names = "apb_pclk"; - status = "disabled"; - }; - - gpioh: gpio@fff33000 { - #gpio-cells = <2>; - compatible = "arm,pl061", "arm,primecell"; - gpio-controller; - reg = <0xfff33000 0x1000>; - interrupts = <0 17 4>; - clocks = <&pclk>; - clock-names = "apb_pclk"; - status = "disabled"; - }; - - timer { - compatible = "arm,sp804", "arm,primecell"; - reg = <0xfff34000 0x1000>; - interrupts = <0 18 4>; - clocks = <&pclk>; - clock-names = "apb_pclk"; - }; - - rtc@fff35000 { - compatible = "arm,pl031", "arm,primecell"; - reg = <0xfff35000 0x1000>; - interrupts = <0 19 4>; - clocks = <&pclk>; - clock-names = "apb_pclk"; - }; - - serial@fff36000 { - compatible = "arm,pl011", "arm,primecell"; - reg = <0xfff36000 0x1000>; - interrupts = <0 20 4>; - clocks = <&pclk>; - clock-names = "apb_pclk"; - }; - - smic@fff3a000 { - compatible = "ipmi-smic"; - device_type = "ipmi"; - reg = <0xfff3a000 0x1000>; - interrupts = <0 24 4>; - reg-size = <4>; - reg-spacing = <4>; - }; - - sregs@fff3c000 { - compatible = "calxeda,hb-sregs"; - reg = <0xfff3c000 0x1000>; - - clocks { - #address-cells = <1>; - #size-cells = <0>; - - osc: oscillator { - #clock-cells = <0>; - compatible = "fixed-clock"; - clock-frequency = <33333000>; - }; - - ddrpll: ddrpll { - #clock-cells = <0>; - compatible = "calxeda,hb-pll-clock"; - clocks = <&osc>; - reg = <0x108>; - }; - - a9pll: a9pll { - #clock-cells = <0>; - compatible = "calxeda,hb-pll-clock"; - clocks = <&osc>; - reg = <0x100>; - }; - - a9periphclk: a9periphclk { - #clock-cells = <0>; - compatible = "calxeda,hb-a9periph-clock"; - clocks = <&a9pll>; - reg = <0x104>; - }; - - a9bclk: a9bclk { - #clock-cells = <0>; - compatible = "calxeda,hb-a9bus-clock"; - clocks = <&a9pll>; - reg = <0x104>; - }; - - emmcpll: emmcpll { - #clock-cells = <0>; - compatible = "calxeda,hb-pll-clock"; - clocks = <&osc>; - reg = <0x10C>; - }; - - eclk: eclk { - #clock-cells = <0>; - compatible = "calxeda,hb-emmc-clock"; - clocks = <&emmcpll>; - reg = <0x114>; - }; - - pclk: pclk { - #clock-cells = <0>; - compatible = "fixed-clock"; - clock-frequency = <150000000>; - }; - }; - }; sregs@fff3c200 { compatible = "calxeda,hb-sregs-l2-ecc"; @@ -296,40 +116,7 @@ interrupts = <0 71 4 0 72 4>; }; - dma@fff3d000 { - compatible = "arm,pl330", "arm,primecell"; - reg = <0xfff3d000 0x1000>; - interrupts = <0 92 4>; - clocks = <&pclk>; - clock-names = "apb_pclk"; - }; - - ethernet@fff50000 { - compatible = "calxeda,hb-xgmac"; - reg = <0xfff50000 0x1000>; - interrupts = <0 77 4 0 78 4 0 79 4>; - dma-coherent; - }; - - ethernet@fff51000 { - compatible = "calxeda,hb-xgmac"; - reg = <0xfff51000 0x1000>; - interrupts = <0 80 4 0 81 4 0 82 4>; - dma-coherent; - }; - - combophy0: combo-phy@fff58000 { - compatible = "calxeda,hb-combophy"; - #phy-cells = <1>; - reg = <0xfff58000 0x1000>; - phydev = <5>; - }; - - combophy5: combo-phy@fff5d000 { - compatible = "calxeda,hb-combophy"; - #phy-cells = <1>; - reg = <0xfff5d000 0x1000>; - phydev = <31>; - }; }; }; + +/include/ "ecx-common.dtsi" -- cgit From 0336517b38c5fd643784eeee8f0d73efd48e3361 Mon Sep 17 00:00:00 2001 From: Rob Herring Date: Thu, 25 Oct 2012 13:53:09 -0500 Subject: ARM: smp_twd: don't warn on no DT node Not having a TWD is valid if we have multiple platforms with different cores, so remove the warning message. Signed-off-by: Rob Herring Acked-by: Arnd Bergmann --- arch/arm/kernel/smp_twd.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/arch/arm/kernel/smp_twd.c b/arch/arm/kernel/smp_twd.c index b22d700fea27..6ec73f91a1d6 100644 --- a/arch/arm/kernel/smp_twd.c +++ b/arch/arm/kernel/smp_twd.c @@ -366,10 +366,8 @@ void __init twd_local_timer_of_register(void) int err; np = of_find_matching_node(NULL, twd_of_match); - if (!np) { - err = -ENODEV; - goto out; - } + if (!np) + return -ENODEV; twd_ppi = irq_of_parse_and_map(np, 0); if (!twd_ppi) { -- cgit From 7a2848d369b2b9281400e6c9f08e21ec71cd1dcb Mon Sep 17 00:00:00 2001 From: Rob Herring Date: Thu, 25 Oct 2012 12:13:47 -0500 Subject: ARM: highbank: abstract out SCU usage In preparation for A15 support on ECX-2000, the direct calls to SCU registers must be conditional. The SCU power mode register is replaced by a custom register on ECX-2000. Rather than read the number of cores from the SCU, just hardcode it to 4. This removes one use of SCU and removes the need for the SCU to be statically mapped. The cpu initialization will ultimately come from DT. Signed-off-by: Rob Herring Acked-by: Arnd Bergmann --- arch/arm/mach-highbank/highbank.c | 21 +++++---------------- arch/arm/mach-highbank/hotplug.c | 6 ++---- arch/arm/mach-highbank/platsmp.c | 7 +++---- arch/arm/mach-highbank/pm.c | 3 --- arch/arm/mach-highbank/sysregs.h | 19 +++++++++++++++++++ arch/arm/mach-highbank/system.c | 2 -- 6 files changed, 29 insertions(+), 29 deletions(-) diff --git a/arch/arm/mach-highbank/highbank.c b/arch/arm/mach-highbank/highbank.c index 40e36a50304c..3da921a1a7f6 100644 --- a/arch/arm/mach-highbank/highbank.c +++ b/arch/arm/mach-highbank/highbank.c @@ -28,30 +28,19 @@ #include #include -#include #include #include #include #include #include #include -#include #include #include "core.h" #include "sysregs.h" void __iomem *sregs_base; - -#define HB_SCU_VIRT_BASE 0xfee00000 -void __iomem *scu_base_addr = ((void __iomem *)(HB_SCU_VIRT_BASE)); - -static struct map_desc scu_io_desc __initdata = { - .virtual = HB_SCU_VIRT_BASE, - .pfn = 0, /* run-time */ - .length = SZ_4K, - .type = MT_DEVICE, -}; +void __iomem *scu_base_addr; static void __init highbank_scu_map_io(void) { @@ -60,13 +49,11 @@ static void __init highbank_scu_map_io(void) /* Get SCU base */ asm("mrc p15, 4, %0, c15, c0, 0" : "=r" (base)); - scu_io_desc.pfn = __phys_to_pfn(base); - iotable_init(&scu_io_desc, 1); + scu_base_addr = ioremap(base, SZ_4K); } static void __init highbank_map_io(void) { - highbank_scu_map_io(); highbank_lluart_map_io(); } @@ -99,6 +86,9 @@ static void __init highbank_init_irq(void) { of_irq_init(irq_match); + if (of_find_compatible_node(NULL, NULL, "arm,cortex-a9")) + highbank_scu_map_io(); + #ifdef CONFIG_CACHE_L2X0 /* Enable PL310 L2 Cache controller */ highbank_smc1(0x102, 0x1); @@ -145,7 +135,6 @@ static struct sys_timer highbank_timer = { static void highbank_power_off(void) { hignbank_set_pwr_shutdown(); - scu_power_mode(scu_base_addr, SCU_PM_POWEROFF); while (1) cpu_do_idle(); diff --git a/arch/arm/mach-highbank/hotplug.c b/arch/arm/mach-highbank/hotplug.c index 2c1b8c3c8e45..7b60faccd551 100644 --- a/arch/arm/mach-highbank/hotplug.c +++ b/arch/arm/mach-highbank/hotplug.c @@ -14,13 +14,11 @@ * this program. If not, see . */ #include -#include -#include -#include #include #include "core.h" +#include "sysregs.h" extern void secondary_startup(void); @@ -33,7 +31,7 @@ void __ref highbank_cpu_die(unsigned int cpu) flush_cache_all(); highbank_set_cpu_jump(cpu, secondary_startup); - scu_power_mode(scu_base_addr, SCU_PM_POWEROFF); + highbank_set_core_pwr(); cpu_do_idle(); diff --git a/arch/arm/mach-highbank/platsmp.c b/arch/arm/mach-highbank/platsmp.c index fa9560ec6e70..1129957f6c1d 100644 --- a/arch/arm/mach-highbank/platsmp.c +++ b/arch/arm/mach-highbank/platsmp.c @@ -42,9 +42,7 @@ static int __cpuinit highbank_boot_secondary(unsigned int cpu, struct task_struc */ static void __init highbank_smp_init_cpus(void) { - unsigned int i, ncores; - - ncores = scu_get_core_count(scu_base_addr); + unsigned int i, ncores = 4; /* sanity check */ if (ncores > NR_CPUS) { @@ -65,7 +63,8 @@ static void __init highbank_smp_prepare_cpus(unsigned int max_cpus) { int i; - scu_enable(scu_base_addr); + if (scu_base_addr) + scu_enable(scu_base_addr); /* * Write the address of secondary startup into the jump table diff --git a/arch/arm/mach-highbank/pm.c b/arch/arm/mach-highbank/pm.c index de866f21331f..74aa135966f0 100644 --- a/arch/arm/mach-highbank/pm.c +++ b/arch/arm/mach-highbank/pm.c @@ -19,7 +19,6 @@ #include #include -#include #include #include "core.h" @@ -35,8 +34,6 @@ static int highbank_pm_enter(suspend_state_t state) { hignbank_set_pwr_suspend(); highbank_set_cpu_jump(0, cpu_resume); - - scu_power_mode(scu_base_addr, SCU_PM_POWEROFF); cpu_suspend(0, highbank_suspend_finish); return 0; diff --git a/arch/arm/mach-highbank/sysregs.h b/arch/arm/mach-highbank/sysregs.h index 0e913389f445..e13e8ea7c6cb 100644 --- a/arch/arm/mach-highbank/sysregs.h +++ b/arch/arm/mach-highbank/sysregs.h @@ -17,6 +17,10 @@ #define _MACH_HIGHBANK__SYSREGS_H_ #include +#include +#include +#include +#include "core.h" extern void __iomem *sregs_base; @@ -29,24 +33,39 @@ extern void __iomem *sregs_base; #define HB_PWR_HARD_RESET 2 #define HB_PWR_SHUTDOWN 3 +#define SREG_CPU_PWR_CTRL(c) (0x200 + ((c) * 4)) + +static inline void highbank_set_core_pwr(void) +{ + int cpu = cpu_logical_map(smp_processor_id()); + if (scu_base_addr) + scu_power_mode(scu_base_addr, SCU_PM_POWEROFF); + else + writel_relaxed(1, sregs_base + SREG_CPU_PWR_CTRL(cpu)); +} + static inline void hignbank_set_pwr_suspend(void) { writel(HB_PWR_SUSPEND, sregs_base + HB_SREG_A9_PWR_REQ); + highbank_set_core_pwr(); } static inline void hignbank_set_pwr_shutdown(void) { writel(HB_PWR_SHUTDOWN, sregs_base + HB_SREG_A9_PWR_REQ); + highbank_set_core_pwr(); } static inline void hignbank_set_pwr_soft_reset(void) { writel(HB_PWR_SOFT_RESET, sregs_base + HB_SREG_A9_PWR_REQ); + highbank_set_core_pwr(); } static inline void hignbank_set_pwr_hard_reset(void) { writel(HB_PWR_HARD_RESET, sregs_base + HB_SREG_A9_PWR_REQ); + highbank_set_core_pwr(); } #endif diff --git a/arch/arm/mach-highbank/system.c b/arch/arm/mach-highbank/system.c index 82c27230d4a9..194a5bbb7363 100644 --- a/arch/arm/mach-highbank/system.c +++ b/arch/arm/mach-highbank/system.c @@ -14,7 +14,6 @@ * this program. If not, see . */ #include -#include #include #include "core.h" @@ -27,7 +26,6 @@ void highbank_restart(char mode, const char *cmd) else hignbank_set_pwr_soft_reset(); - scu_power_mode(scu_base_addr, SCU_PM_POWEROFF); cpu_do_idle(); } -- cgit From e095c0d122c09efabe7d4136ce77f72c636c4879 Mon Sep 17 00:00:00 2001 From: Rob Herring Date: Thu, 25 Oct 2012 12:19:52 -0500 Subject: ARM: highbank: Add initial ECX-2000 support And initial Calxeda ECX-2000 SOC support. This adds Cortex-A15 peripherals and machine DT match name. Signed-off-by: Rob Herring Acked-by: Arnd Bergmann --- arch/arm/mach-highbank/Kconfig | 2 +- arch/arm/mach-highbank/highbank.c | 6 ++++++ 2 files changed, 7 insertions(+), 1 deletion(-) diff --git a/arch/arm/mach-highbank/Kconfig b/arch/arm/mach-highbank/Kconfig index 0e1d0a42a3ea..551c97e87a78 100644 --- a/arch/arm/mach-highbank/Kconfig +++ b/arch/arm/mach-highbank/Kconfig @@ -1,5 +1,5 @@ config ARCH_HIGHBANK - bool "Calxeda ECX-1000 (Highbank)" if ARCH_MULTI_V7 + bool "Calxeda ECX-1000/2000 (Highbank/Midway)" if ARCH_MULTI_V7 select ARCH_WANT_OPTIONAL_GPIOLIB select ARM_AMBA select ARM_GIC diff --git a/arch/arm/mach-highbank/highbank.c b/arch/arm/mach-highbank/highbank.c index 3da921a1a7f6..3e60e5744157 100644 --- a/arch/arm/mach-highbank/highbank.c +++ b/arch/arm/mach-highbank/highbank.c @@ -26,6 +26,7 @@ #include #include +#include #include #include #include @@ -70,6 +71,7 @@ void highbank_set_cpu_jump(int cpu, void *jump_addr) } const static struct of_device_id irq_match[] = { + { .compatible = "arm,cortex-a15-gic", .data = gic_of_init, }, { .compatible = "arm,cortex-a9-gic", .data = gic_of_init, }, {} }; @@ -126,6 +128,9 @@ static void __init highbank_timer_init(void) sp804_clockevents_init(timer_base, irq, "timer0"); twd_local_timer_of_register(); + + arch_timer_of_register(); + arch_timer_sched_clock_init(); } static struct sys_timer highbank_timer = { @@ -200,6 +205,7 @@ static void __init highbank_init(void) static const char *highbank_match[] __initconst = { "calxeda,highbank", + "calxeda,ecx-2000", NULL, }; -- cgit From e5c5f2adeb370559f4b221d57214db85858b786a Mon Sep 17 00:00:00 2001 From: Rob Herring Date: Mon, 22 Oct 2012 11:42:54 -0600 Subject: ARM: implement debug_ll_io_init() When using DEBUG_LL, the UART's (or other HW's) registers are mapped into early page tables based on the results of assembly macro addruart. Later, when the page tables are replaced, the same virtual address must remain valid. Historically, this has been ensured by using defines from in both the implementation of addruart, and the machine's .map_io() function. However, with the move to single zImage, we wish to remove . To enable this, the macro addruart may be used when constructing the late page tables too; addruart is exposed as a C function debug_ll_addr(), and used to set up the required mapping in debug_ll_io_init(), which may called on an opt-in basis from a machine's .map_io() function. Signed-off-by: Rob Herring [swarren: Mask map.virtual with PAGE_MASK. Checked for NULL results from debug_ll_addr (e.g. when selected UART isn't valid). Fixed compile when either !CONFIG_DEBUG_LL or CONFIG_DEBUG_SEMIHOSTING.] Signed-off-by: Stephen Warren Signed-off-by: Olof Johansson --- arch/arm/include/asm/mach/map.h | 7 +++++++ arch/arm/kernel/debug.S | 14 ++++++++++++++ arch/arm/mm/mmu.c | 16 ++++++++++++++++ 3 files changed, 37 insertions(+) diff --git a/arch/arm/include/asm/mach/map.h b/arch/arm/include/asm/mach/map.h index 195ac2f9d3d3..2fe141fcc8d6 100644 --- a/arch/arm/include/asm/mach/map.h +++ b/arch/arm/include/asm/mach/map.h @@ -40,6 +40,13 @@ extern void iotable_init(struct map_desc *, int); extern void vm_reserve_area_early(unsigned long addr, unsigned long size, void *caller); +#ifdef CONFIG_DEBUG_LL +extern void debug_ll_addr(unsigned long *paddr, unsigned long *vaddr); +extern void debug_ll_io_init(void); +#else +static inline void debug_ll_io_init(void) {} +#endif + struct mem_type; extern const struct mem_type *get_mem_type(unsigned int type); /* diff --git a/arch/arm/kernel/debug.S b/arch/arm/kernel/debug.S index 66f711b2e0e8..6809200c31fb 100644 --- a/arch/arm/kernel/debug.S +++ b/arch/arm/kernel/debug.S @@ -100,6 +100,13 @@ ENTRY(printch) b 1b ENDPROC(printch) +ENTRY(debug_ll_addr) + addruart r2, r3, ip + str r2, [r0] + str r3, [r1] + mov pc, lr +ENDPROC(debug_ll_addr) + #else ENTRY(printascii) @@ -119,4 +126,11 @@ ENTRY(printch) mov pc, lr ENDPROC(printch) +ENTRY(debug_ll_addr) + mov r2, #0 + str r2, [r0] + str r2, [r1] + mov pc, lr +ENDPROC(debug_ll_addr) + #endif diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c index 941dfb9e9a78..39719bb93caa 100644 --- a/arch/arm/mm/mmu.c +++ b/arch/arm/mm/mmu.c @@ -876,6 +876,22 @@ static void __init pci_reserve_io(void) #define pci_reserve_io() do { } while (0) #endif +#ifdef CONFIG_DEBUG_LL +void __init debug_ll_io_init(void) +{ + struct map_desc map; + + debug_ll_addr(&map.pfn, &map.virtual); + if (!map.pfn || !map.virtual) + return; + map.pfn = __phys_to_pfn(map.pfn); + map.virtual &= PAGE_MASK; + map.length = PAGE_SIZE; + map.type = MT_DEVICE; + create_mapping(&map); +} +#endif + static void * __initdata vmalloc_min = (void *)(VMALLOC_END - (240 << 20) - VMALLOC_OFFSET); -- cgit