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authorArnd Bergmann <arnd@arndb.de>2017-11-07 10:32:04 -0500
committerArnd Bergmann <arnd@arndb.de>2017-11-07 10:32:04 -0500
commitfa32475ad56d339178c9be12678906f2b39e3b47 (patch)
tree939dc4bddcefe7eabaa3ecb2b63cabe01bf4d093
parentff4f0321c533f4cde844829854735da64a4a327f (diff)
parent6c2eb3e76fb84e2eb46d484f71fab469c0d9532c (diff)
Merge tag 'actions-arm-soc-for-4.15' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/afaerber/linux-actions into next/soc
Pull "Actions Semi Arm SoC for v4.15" from Andreas Färber: This cleans up the S500 SMP code. * tag 'actions-arm-soc-for-4.15' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/afaerber/linux-actions: ARM: owl: smp: Drop owl_secondary_boot() ARM: owl: smp: Use __pa_symbol()
-rw-r--r--arch/arm/mach-actions/Makefile4
-rw-r--r--arch/arm/mach-actions/headsmp.S52
-rw-r--r--arch/arm/mach-actions/platsmp.c2
3 files changed, 2 insertions, 56 deletions
diff --git a/arch/arm/mach-actions/Makefile b/arch/arm/mach-actions/Makefile
index c0f116241da7..13831037d8cd 100644
--- a/arch/arm/mach-actions/Makefile
+++ b/arch/arm/mach-actions/Makefile
@@ -1,3 +1 @@
1obj-${CONFIG_SMP} += platsmp.o headsmp.o obj-${CONFIG_SMP} += platsmp.o
2
3AFLAGS_headsmp.o := -Wa,-march=armv7-a
diff --git a/arch/arm/mach-actions/headsmp.S b/arch/arm/mach-actions/headsmp.S
deleted file mode 100644
index 65f53bdb69e7..000000000000
--- a/arch/arm/mach-actions/headsmp.S
+++ /dev/null
@@ -1,52 +0,0 @@
1/*
2 * Copyright 2012 Actions Semi Inc.
3 * Author: Actions Semi, Inc.
4 *
5 * Copyright (c) 2017 Andreas Färber
6 *
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License as published by the
9 * Free Software Foundation; either version 2 of the License, or (at your
10 * option) any later version.
11 */
12
13#include <linux/linkage.h>
14#include <linux/init.h>
15
16ENTRY(owl_v7_invalidate_l1)
17 mov r0, #0
18 mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache
19 mcr p15, 2, r0, c0, c0, 0
20 mrc p15, 1, r0, c0, c0, 0
21
22 ldr r1, =0x7fff
23 and r2, r1, r0, lsr #13
24
25 ldr r1, =0x3ff
26
27 and r3, r1, r0, lsr #3 @ NumWays - 1
28 add r2, r2, #1 @ NumSets
29
30 and r0, r0, #0x7
31 add r0, r0, #4 @ SetShift
32
33 clz r1, r3 @ WayShift
34 add r4, r3, #1 @ NumWays
351: sub r2, r2, #1 @ NumSets--
36 mov r3, r4 @ Temp = NumWays
372: subs r3, r3, #1 @ Temp--
38 mov r5, r3, lsl r1
39 mov r6, r2, lsl r0
40 orr r5, r5, r6 @ Reg = (Temp<<WayShift)|(NumSets<<SetShift)
41 mcr p15, 0, r5, c7, c6, 2
42 bgt 2b
43 cmp r2, #0
44 bgt 1b
45 dsb
46 isb
47 mov pc, lr
48ENDPROC(owl_v7_invalidate_l1)
49
50ENTRY(owl_secondary_startup)
51 bl owl_v7_invalidate_l1
52 b secondary_startup
diff --git a/arch/arm/mach-actions/platsmp.c b/arch/arm/mach-actions/platsmp.c
index 12a9e331b432..3efaa10efc43 100644
--- a/arch/arm/mach-actions/platsmp.c
+++ b/arch/arm/mach-actions/platsmp.c
@@ -71,7 +71,7 @@ static int s500_wakeup_secondary(unsigned int cpu)
71 /* wait for CPUx to run to WFE instruction */ 71 /* wait for CPUx to run to WFE instruction */
72 udelay(200); 72 udelay(200);
73 73
74 writel(virt_to_phys(owl_secondary_startup), 74 writel(__pa_symbol(secondary_startup),
75 timer_base_addr + OWL_CPU1_ADDR + (cpu - 1) * 4); 75 timer_base_addr + OWL_CPU1_ADDR + (cpu - 1) * 4);
76 writel(OWL_CPUx_FLAG_BOOT, 76 writel(OWL_CPUx_FLAG_BOOT,
77 timer_base_addr + OWL_CPU1_FLAG + (cpu - 1) * 4); 77 timer_base_addr + OWL_CPU1_FLAG + (cpu - 1) * 4);