49 lines
1.5 KiB
Diff
49 lines
1.5 KiB
Diff
|
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
|
||
|
|
|