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authorChris Packham <chris.packham@alliedtelesis.co.nz>2018-07-26 15:48:56 +1200
committerGregory CLEMENT <gregory.clement@bootlin.com>2018-09-24 17:15:24 +0200
commit3972863aad8919fd8ec5527ea560abed285edd40 (patch)
tree68d430da14216f4a905d1b41e7e64ea43f388c93 /arch/arm/mach-mvebu
parent5b394b2ddf0347bef56e50c69a58773c94343ff3 (diff)
ARM: mvebu: use dt_fixup to provide fallback for enable-method
We need to maintain backwards compatibility with device trees that don't define an enable method. At the same time we want the device tree to be able to specify an enable-method and have it stick. Previously by having smp assigned in the DT_MACHINE definition this would be picked up by setup_arch() and override whatever arm_dt_init_cpu_maps() had configured. Now we move the initial assignment of default smp_ops to a dt_fixup and let arm_dt_init_cpu_maps() override that if the device tree defines an enable-method. [olof@lixom.net: Wrap set_smp_ops() in CONFIG_SMP.] Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz> Tested-by: Gregory CLEMENT <gregory.clement@bootlin.com> (on AX3) Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Diffstat (limited to 'arch/arm/mach-mvebu')
-rw-r--r--arch/arm/mach-mvebu/board-v7.c14
1 files changed, 8 insertions, 6 deletions
diff --git a/arch/arm/mach-mvebu/board-v7.c b/arch/arm/mach-mvebu/board-v7.c
index ccca95173e17..0b10acd7d1b9 100644
--- a/arch/arm/mach-mvebu/board-v7.c
+++ b/arch/arm/mach-mvebu/board-v7.c
@@ -145,6 +145,13 @@ static void __init mvebu_dt_init(void)
i2c_quirk();
}
+static void __init armada_370_xp_dt_fixup(void)
+{
+#ifdef CONFIG_SMP
+ smp_set_ops(smp_ops(armada_xp_smp_ops));
+#endif
+}
+
static const char * const armada_370_xp_dt_compat[] __initconst = {
"marvell,armada-370-xp",
NULL,
@@ -153,17 +160,12 @@ static const char * const armada_370_xp_dt_compat[] __initconst = {
DT_MACHINE_START(ARMADA_370_XP_DT, "Marvell Armada 370/XP (Device Tree)")
.l2c_aux_val = 0,
.l2c_aux_mask = ~0,
-/*
- * The following field (.smp) is still needed to ensure backward
- * compatibility with old Device Trees that were not specifying the
- * cpus enable-method property.
- */
- .smp = smp_ops(armada_xp_smp_ops),
.init_machine = mvebu_dt_init,
.init_irq = mvebu_init_irq,
.restart = mvebu_restart,
.reserve = mvebu_memblock_reserve,
.dt_compat = armada_370_xp_dt_compat,
+ .dt_fixup = armada_370_xp_dt_fixup,
MACHINE_END
static const char * const armada_375_dt_compat[] __initconst = {