diff options
Diffstat (limited to 'target/linux/mvebu/patches-3.10/0026-arm-mvebu-move-cache-and-mvebu-mbus-initialization-l.patch')
| -rw-r--r-- | target/linux/mvebu/patches-3.10/0026-arm-mvebu-move-cache-and-mvebu-mbus-initialization-l.patch | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/target/linux/mvebu/patches-3.10/0026-arm-mvebu-move-cache-and-mvebu-mbus-initialization-l.patch b/target/linux/mvebu/patches-3.10/0026-arm-mvebu-move-cache-and-mvebu-mbus-initialization-l.patch new file mode 100644 index 0000000..de2ed73 --- /dev/null +++ b/target/linux/mvebu/patches-3.10/0026-arm-mvebu-move-cache-and-mvebu-mbus-initialization-l.patch @@ -0,0 +1,54 @@ +From c7c7e6309ae12f2cb0d9053875876b57bb7587e4 Mon Sep 17 00:00:00 2001 +From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> +Date: Wed, 5 Jun 2013 09:04:56 +0200 +Subject: [PATCH 026/203] 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> +--- + arch/arm/mach-mvebu/armada-370-xp.c | 8 ++------ + 1 file changed, 2 insertions(+), 6 deletions(-) + +--- a/arch/arm/mach-mvebu/armada-370-xp.c ++++ b/arch/arm/mach-mvebu/armada-370-xp.c +@@ -45,14 +45,11 @@ static void __init armada_370_xp_map_io( + + 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 +@@ -88,7 +85,6 @@ DT_MACHINE_START(ARMADA_XP_DT, "Marvell + .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_irq = irqchip_init, + .init_time = armada_370_xp_timer_and_clk_init, + .restart = mvebu_restart, |