Re: [U-Boot] [PATCH 2/6] ARM: keystone2: K2G: power-off DSP during boot

[Tom Rini]

On Thu, Feb 25, 2016 at 09:52:11AM -0600, Nishanth Menon wrote:

> From: Suman Anna 
> 
> The DSPs are powered on by default upon a Power ON reset, and
> they are powered off on current Keystone 2 SoCs - K2HK, K2L, K2E
> during the boot in u-boot. This is not functional on K2G though.
> Extend the existing DSP power-off support to the only DSP present
> on K2G. Do note that the PSC clock domain module id for DSP on K2G
> differs from that of previous Keystone2 SoCs.
> 
> Signed-off-by: Suman Anna 
> Signed-off-by: Nishanth Menon 

Reviewed-by: Tom Rini 

-- 
Tom


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[U-Boot] [PATCH 2/6] ARM: keystone2: K2G: power-off DSP during boot

[Nishanth Menon]

From: Suman Anna 

The DSPs are powered on by default upon a Power ON reset, and
they are powered off on current Keystone 2 SoCs - K2HK, K2L, K2E
during the boot in u-boot. This is not functional on K2G though.
Extend the existing DSP power-off support to the only DSP present
on K2G. Do note that the PSC clock domain module id for DSP on K2G
differs from that of previous Keystone2 SoCs.

Signed-off-by: Suman Anna 
Signed-off-by: Nishanth Menon 
---
 arch/arm/mach-keystone/include/mach/hardware-k2g.h | 7 +--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-keystone/include/mach/hardware-k2g.h 
b/arch/arm/mach-keystone/include/mach/hardware-k2g.h
index fa4162fe9964..ca2a119d3901 100644
--- a/arch/arm/mach-keystone/include/mach/hardware-k2g.h
+++ b/arch/arm/mach-keystone/include/mach/hardware-k2g.h
@@ -10,7 +10,7 @@
 #ifndef __ASM_ARCH_HARDWARE_K2G_H
 #define __ASM_ARCH_HARDWARE_K2G_H
 
-#define KS2_NUM_DSPS   0
+#define KS2_NUM_DSPS   1
 
 /* Power and Sleep Controller (PSC) Domains */
 #define KS2_LPSC_ALWAYSON  0
@@ -30,7 +30,10 @@
 #define KS2_LPSC_MCASP 15
 #define KS2_LPSC_SR16
 #define KS2_LPSC_MSMC  17
-#define KS2_LPSC_GEM   18
+#ifdef KS2_LPSC_GEM_0
+#undef KS2_LPSC_GEM_0
+#endif
+#define KS2_LPSC_GEM_0 18
 #define KS2_LPSC_ARM   19
 #define KS2_LPSC_ASRC  20
 #define KS2_LPSC_ICSS  21
-- 
2.7.0

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