On Tue, 17 Nov 2015 15:32:30 +0100
Jens Kuske <jensku...@gmail.com> wrote:
> On 16/11/15 07:26, Chen-Yu Tsai wrote:
> > Hi everyone,
> >
> > I got my Orange Pi PC booting U-boot now, using Hans' sunxi-wip branch that
> > includes Jens' patches.
> >
> > For PSCI and SMP, it seems the H3 follows the structure of previous sun8i
> > SoCs.
> > The CPUCFG registers line up. The manual doesn't have the PRCM, so I'll
> > have to
> > dig through the SDK.
> >
> > One other thing is the SMTA, or Secure Memory Touch Arbiter, which we last
> > encountered issues with on the A31s. This controls non-secure access to a
> > whole
> > bunch of peripherals, which we'll need to enable for Linux to run
> > non-secure.
>
> There is also register 0x2f0 in the CCU, it defaults to disabling
> non-secure access to all clock registers.
>
> Jens
>
How about just enabling SMP on Allwinner H3 in an old unfashionable way
while all these non-secure access limiters are still being under
investigation?
diff --git a/arch/arm/boot/dts/sun8i-h3.dtsi b/arch/arm/boot/dts/sun8i-h3.dtsi
index 0faa38a..d23ed84 100644
--- a/arch/arm/boot/dts/sun8i-h3.dtsi
+++ b/arch/arm/boot/dts/sun8i-h3.dtsi
@@ -51,6 +51,7 @@
cpus {
#address-cells = <1>;
#size-cells = <0>;
+ enable-method = "allwinner,sun6i-a31";
cpu@0 {
compatible = "arm,cortex-a7";
@@ -591,5 +592,15 @@
interrupts = <GIC_SPI 40 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH>;
};
+
+ prcm@01f01400 {
+ compatible = "allwinner,sun8i-h3-prcm";
+ reg = <0x01f01400 0x200>;
+ };
+
+ cpucfg@01f01c00 {
+ compatible = "allwinner,sun8i-h3-cpuconfig";
+ reg = <0x01f01c00 0x300>;
+ };
};
};
diff --git a/arch/arm/mach-sunxi/platsmp.c b/arch/arm/mach-sunxi/platsmp.c
index e8483ec..8ca4064 100644
--- a/arch/arm/mach-sunxi/platsmp.c
+++ b/arch/arm/mach-sunxi/platsmp.c
@@ -44,6 +44,9 @@ static void __init sun6i_smp_prepare_cpus(unsigned int
max_cpus)
struct device_node *node;
node = of_find_compatible_node(NULL, NULL, "allwinner,sun6i-a31-prcm");
+ if (!node)
+ node = of_find_compatible_node(NULL, NULL,
+ "allwinner,sun8i-h3-prcm");
if (!node) {
pr_err("Missing A31 PRCM node in the device tree\n");
return;
@@ -57,6 +60,9 @@ static void __init sun6i_smp_prepare_cpus(unsigned int
max_cpus)
node = of_find_compatible_node(NULL, NULL,
"allwinner,sun6i-a31-cpuconfig");
+ if (!node)
+ node = of_find_compatible_node(NULL, NULL,
+ "allwinner,sun8i-h3-cpuconfig");
if (!node) {
pr_err("Missing A31 CPU config node in the device tree\n");
return;
--
2.4.10
--
Best regards,
Siarhei Siamashka
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