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authorThomas Petazzoni <thomas.petazzoni@free-electrons.com>2013-06-05 11:04:56 +0400
committerJason Cooper <jason@lakedaemon.net>2013-06-13 21:48:26 +0400
commit3e0a8f239607e6f7608c3e7797e9c304700f5b72 (patch)
tree48cda386f2913e9aca4279295d3769833586fe6f /arch/arm/mach-mvebu
parent865e0527d2d791083a40555f2ba872da5fbddda8 (diff)
downloadlinux-3e0a8f239607e6f7608c3e7797e9c304700f5b72.tar.xz
arm: mvebu: move cache and mvebu-mbus initialization later
Current, the L2 cache and the mvebu-mbus drivers are initialized at ->init_early() time. However, at ->init_early() time, ioremap() only works if a static I/O mapping has already been put in place. If it's not the case, it tries to do a memory allocation with kmalloc() which is not possible so early at this stage of the initialization. Since we want to get rid of the static I/O mapping, we cannot initialize the L2 cache driver and the mvebu-mbus driver so early. So, we move their initialization to the ->init_time() level, which is slightly later (so ioremap() works properly), but sufficiently early to be before the call of the ->smp_prepare_cpus() hook, which creates an address decoding window for the BootROM, which requires the mvebu-mbus driver to be properly initialized. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
Diffstat (limited to 'arch/arm/mach-mvebu')
-rw-r--r--arch/arm/mach-mvebu/armada-370-xp.c8
1 files changed, 2 insertions, 6 deletions
diff --git a/arch/arm/mach-mvebu/armada-370-xp.c b/arch/arm/mach-mvebu/armada-370-xp.c
index b9319c44d0d2..75ebf567f96c 100644
--- a/arch/arm/mach-mvebu/armada-370-xp.c
+++ b/arch/arm/mach-mvebu/armada-370-xp.c
@@ -44,14 +44,11 @@ static void __init armada_370_xp_map_io(void)
static void __init armada_370_xp_timer_and_clk_init(void)
{
+ char *mbus_soc_name;
+
mvebu_clocks_init();
armada_370_xp_timer_init();
coherency_init();
-}
-
-static void __init armada_370_xp_init_early(void)
-{
- char *mbus_soc_name;
/*
* This initialization will be replaced by a DT-based
@@ -87,7 +84,6 @@ DT_MACHINE_START(ARMADA_XP_DT, "Marvell Armada 370/XP (Device Tree)")
.smp = smp_ops(armada_xp_smp_ops),
.init_machine = armada_370_xp_dt_init,
.map_io = armada_370_xp_map_io,
- .init_early = armada_370_xp_init_early,
.init_time = armada_370_xp_timer_and_clk_init,
.restart = mvebu_restart,
.dt_compat = armada_370_xp_dt_compat,