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authorAlexey Brodkin <Alexey.Brodkin@synopsys.com>2016-05-16 12:57:43 +0300
committerVineet Gupta <vgupta@synopsys.com>2016-05-18 10:50:18 +0530
commit776d7f1694a7d678291354a05f0243965708306a (patch)
treea7a4f9fcb3610e5451041d52657bc909c0b71872
parent445a64214285073ebc02af633a8a149e1522b7cb (diff)
downloadlinux-776d7f1694a7d678291354a05f0243965708306a.tar.bz2
arc: axs103_smp: Fix CPU frequency to 100MHz for dual-core
The most recent release of AXS103 [v1.1] is proven to work at 100 MHz in dual-core mode so this change uses mentioned feature. For that we: * Update axc003_idu.dtsi with mention of really-used CPU clock freq * Remove clock override in AXS platform code for dual-core HW Note we're still leaving a hack for clock "downgrade" on early boot for quad-core hardware. Also note this change will break functionality of AXS103 v1.0 hardware. That means all users of AXS103 __must__ upgrade their boards with the most recent firmware. Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com> Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
-rw-r--r--arch/arc/boot/dts/axc003_idu.dtsi2
-rw-r--r--arch/arc/plat-axs10x/axs10x.c2
2 files changed, 1 insertions, 3 deletions
diff --git a/arch/arc/boot/dts/axc003_idu.dtsi b/arch/arc/boot/dts/axc003_idu.dtsi
index 8955881db794..ed1674b16e82 100644
--- a/arch/arc/boot/dts/axc003_idu.dtsi
+++ b/arch/arc/boot/dts/axc003_idu.dtsi
@@ -28,7 +28,7 @@
core_clk: core_clk {
#clock-cells = <0>;
compatible = "fixed-clock";
- clock-frequency = <90000000>;
+ clock-frequency = <100000000>;
};
core_intc: archs-intc@cpu {
diff --git a/arch/arc/plat-axs10x/axs10x.c b/arch/arc/plat-axs10x/axs10x.c
index 9701c93f315d..86548701023c 100644
--- a/arch/arc/plat-axs10x/axs10x.c
+++ b/arch/arc/plat-axs10x/axs10x.c
@@ -410,8 +410,6 @@ static void __init axs103_early_init(void)
unsigned int num_cores = (read_aux_reg(ARC_REG_MCIP_BCR) >> 16) & 0x3F;
if (num_cores > 2)
freq = 50;
- else if (num_cores == 2)
- freq = 75;
#endif
switch (freq) {