| Message ID | 1448987049-17041-6-git-send-email-kapilh@broadcom.com |
|---|---|
| State | Superseded |
| Headers | show |
On Wed, Dec 02, 2015 at 04:03:03PM +0100, Hauke Mehrtens wrote: > On 12/01/2015 05:24 PM, Kapil Hali wrote: > > From: Jon Mason <jonmason@broadcom.com> > > > > Add SMP support for Broadcom's 4708 SoCs. > > > > Signed-off-by: Jon Mason <jonmason@broadcom.com> > > Acked-by: Hauke Mehrtens <hauke@hauke-m.de> > > Tested-by: Hauke Mehrtens <hauke@hauke-m.de> > > Signed-off-by: Kapil Hali <kapilh@broadcom.com> > > --- > > arch/arm/boot/dts/bcm4708.dtsi | 2 ++ > > arch/arm/mach-bcm/Kconfig | 1 + > > arch/arm/mach-bcm/Makefile | 3 +++ > > 3 files changed, 6 insertions(+) > > > > diff --git a/arch/arm/boot/dts/bcm4708.dtsi b/arch/arm/boot/dts/bcm4708.dtsi > > index 31141e8..eed4dd1 100644 > > --- a/arch/arm/boot/dts/bcm4708.dtsi > > +++ b/arch/arm/boot/dts/bcm4708.dtsi > > @@ -15,6 +15,7 @@ > > cpus { > > #address-cells = <1>; > > #size-cells = <0>; > > + enable-method = "brcm,bcm-nsp-smp"; > > > > cpu@0 { > > device_type = "cpu"; > > @@ -27,6 +28,7 @@ > > device_type = "cpu"; > > compatible = "arm,cortex-a9"; > > next-level-cache = <&L2>; > > + secondary-boot-reg = <0xffff0400>; > > reg = <0x1>; > > }; > > }; > > diff --git a/arch/arm/mach-bcm/Kconfig b/arch/arm/mach-bcm/Kconfig > > index 83765a0..e85246f 100644 > > --- a/arch/arm/mach-bcm/Kconfig > > +++ b/arch/arm/mach-bcm/Kconfig > > @@ -54,6 +54,7 @@ config ARCH_BCM_NSP > > config ARCH_BCM_5301X > > bool "Broadcom BCM470X / BCM5301X ARM SoC" if ARCH_MULTI_V7 > > select ARCH_BCM_IPROC > > + select HAVE_SMP > > help > > Support for Broadcom BCM470X and BCM5301X SoCs with ARM CPU cores. > > > > When applying this patch please make sure it is correctly applied this > patch causes some problems here: > > http://www.spinics.net/lists/arm-kernel/msg462137.html > > > diff --git a/arch/arm/mach-bcm/Makefile b/arch/arm/mach-bcm/Makefile > > index 5193a25..7d66515 100644 > > --- a/arch/arm/mach-bcm/Makefile > > +++ b/arch/arm/mach-bcm/Makefile > > @@ -43,6 +43,9 @@ obj-$(CONFIG_ARCH_BCM2835) += board_bcm2835.o > > > > # BCM5301X > > obj-$(CONFIG_ARCH_BCM_5301X) += bcm_5301x.o > > +ifeq ($(CONFIG_ARCH_BCM_5301X),y) > > +obj-$(CONFIG_SMP) += platsmp.o > > +endif > > > > # BCM63XXx > > ifeq ($(CONFIG_ARCH_BCM_63XX),y) > > > > I am getting this on a Northstar 1 / BCM4708: > > [ 0.137634] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000 > [ 0.143643] Setting up static identity map for 0x82a0 - 0x82d4 > [ 0.189772] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001 > [ 0.189861] Brought up 2 CPUs > [ 0.198845] SMP: Total of 2 processors activated (3188.32 BogoMIPS). > [ 0.205446] CPU: WARNING: CPU(s) started in wrong/inconsistent modes > (primary CPU mode 0x13) > [ 0.214167] CPU: This may indicate a broken bootloader or firmware. > > I assume that this is correct and the bootloader is just broken, it uses > this bootloader: "CFE for Foxconn Router version: v1.0.14", I haven't > noticed any problems, so it is ok for me. On my 4708 SVK, I see the same issue [ 0.090877] CPU: Testing write buffer coherency: ok [ 0.091231] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000 [ 0.091377] Setting up static identity map for 0x82a0 - 0x82f8 [ 0.130146] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001 [ 0.130251] Brought up 2 CPUs [ 0.130323] SMP: Total of 2 processors activated (3188.32 BogoMIPS). [ 0.130345] CPU: WARNING: CPU(s) started in wrong/inconsistent modes (primary CPU mode 0x13) [ 0.130374] CPU: This may indicate a broken bootloader or firmware. I'll investigate it more and see if I can bottom out on the cause. Thanks, Jon > > Hauke -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
diff --git a/arch/arm/boot/dts/bcm4708.dtsi b/arch/arm/boot/dts/bcm4708.dtsi index 31141e8..eed4dd1 100644 --- a/arch/arm/boot/dts/bcm4708.dtsi +++ b/arch/arm/boot/dts/bcm4708.dtsi @@ -15,6 +15,7 @@ cpus { #address-cells = <1>; #size-cells = <0>; + enable-method = "brcm,bcm-nsp-smp"; cpu@0 { device_type = "cpu"; @@ -27,6 +28,7 @@ device_type = "cpu"; compatible = "arm,cortex-a9"; next-level-cache = <&L2>; + secondary-boot-reg = <0xffff0400>; reg = <0x1>; }; }; diff --git a/arch/arm/mach-bcm/Kconfig b/arch/arm/mach-bcm/Kconfig index 83765a0..e85246f 100644 --- a/arch/arm/mach-bcm/Kconfig +++ b/arch/arm/mach-bcm/Kconfig @@ -54,6 +54,7 @@ config ARCH_BCM_NSP config ARCH_BCM_5301X bool "Broadcom BCM470X / BCM5301X ARM SoC" if ARCH_MULTI_V7 select ARCH_BCM_IPROC + select HAVE_SMP help Support for Broadcom BCM470X and BCM5301X SoCs with ARM CPU cores. diff --git a/arch/arm/mach-bcm/Makefile b/arch/arm/mach-bcm/Makefile index 5193a25..7d66515 100644 --- a/arch/arm/mach-bcm/Makefile +++ b/arch/arm/mach-bcm/Makefile @@ -43,6 +43,9 @@ obj-$(CONFIG_ARCH_BCM2835) += board_bcm2835.o # BCM5301X obj-$(CONFIG_ARCH_BCM_5301X) += bcm_5301x.o +ifeq ($(CONFIG_ARCH_BCM_5301X),y) +obj-$(CONFIG_SMP) += platsmp.o +endif # BCM63XXx ifeq ($(CONFIG_ARCH_BCM_63XX),y)