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| author | Alexey Brodkin <Alexey.Brodkin@synopsys.com> | 2016-05-16 12:57:43 +0300 |
|---|---|---|
| committer | Vineet Gupta <vgupta@synopsys.com> | 2016-05-18 10:50:18 +0530 |
| commit | 776d7f1694a7d678291354a05f0243965708306a (patch) | |
| tree | a7a4f9fcb3610e5451041d52657bc909c0b71872 | |
| parent | 445a64214285073ebc02af633a8a149e1522b7cb (diff) | |
| download | lwn-776d7f1694a7d678291354a05f0243965708306a.tar.gz lwn-776d7f1694a7d678291354a05f0243965708306a.zip | |
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.dtsi | 2 | ||||
| -rw-r--r-- | arch/arc/plat-axs10x/axs10x.c | 2 |
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) { |