| From ee5a5a51780bcb17e5240335ddfa9c98a0e6f890 Mon Sep 17 00:00:00 2001 |
| From: Alexey Brodkin <abrodkin@synopsys.com> |
| Date: Thu, 30 Mar 2017 19:18:30 +0300 |
| Subject: [PATCH] axs103: Clean-up smp_kick_all_cpus() |
| |
| * Rely on default pulse polarity value |
| * Don't mess with "multicore" value as it doesn't affect execution |
| |
| In essence we now do a bare minimal stuff: |
| 1) Select HS38x2_1 with CORE_SEL=1 bits |
| 2) Select "manual" core start (via CREG) with START_MODE=0 |
| 3) Generate cpu_start pulse with START=1 |
| |
| Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com> |
| Signed-off-by: Vlad Zakharov <vzakhar@synopsys.com> |
| --- |
| board/synopsys/axs10x/axs10x.c | 12 +++++------- |
| 1 file changed, 5 insertions(+), 7 deletions(-) |
| |
| diff --git a/board/synopsys/axs10x/axs10x.c b/board/synopsys/axs10x/axs10x.c |
| index a5e774b2cf7b..57c790220f71 100644 |
| --- a/board/synopsys/axs10x/axs10x.c |
| +++ b/board/synopsys/axs10x/axs10x.c |
| @@ -61,16 +61,14 @@ void smp_kick_all_cpus(void) |
| { |
| /* CPU start CREG */ |
| #define AXC003_CREG_CPU_START 0xF0001400 |
| - |
| /* Bits positions in CPU start CREG */ |
| #define BITS_START 0 |
| -#define BITS_POLARITY 8 |
| +#define BITS_START_MODE 4 |
| #define BITS_CORE_SEL 9 |
| -#define BITS_MULTICORE 12 |
| - |
| -#define CMD (1 << BITS_MULTICORE) | (1 << BITS_CORE_SEL) | \ |
| - (1 << BITS_POLARITY) | (1 << BITS_START) |
| |
| - writel(CMD, (void __iomem *)AXC003_CREG_CPU_START); |
| + int cmd = readl((void __iomem *)AXC003_CREG_CPU_START); |
| + cmd |= (1 << BITS_CORE_SEL) | (1 << BITS_START); |
| + cmd &= ~(1 << BITS_START_MODE); |
| + writel(cmd, (void __iomem *)AXC003_CREG_CPU_START); |
| } |
| #endif |
| -- |
| 2.7.4 |
| |