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axs103: Clean-up smp_kick_all_cpus()

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* 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>
This commit is contained in:
Alexey Brodkin 2017-03-30 19:18:30 +03:00
parent 5cf618ee60
commit 0b0db98be7
1 changed files with 5 additions and 7 deletions
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12
board/synopsys/axs10x/axs10x.c
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@ -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