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| author | Thomas Gleixner <tglx@linutronix.de> | 2014-02-21 21:36:40 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2014-02-21 21:37:09 +0100 |
| commit | d97a860c4f3de98ba5040a22f305b7159fe17cff (patch) | |
| tree | 90c2155ec5a1f3115a9eb7a86f25d1a4610227c6 /arch/arm/mach-zynq/common.c | |
| parent | 3f67d962c64d9b6de9dab81bdbe6d5c94c80d9b9 (diff) | |
| parent | d158fc7f36a25e19791d25a55da5623399a2644f (diff) | |
| download | blackbird-op-linux-d97a860c4f3de98ba5040a22f305b7159fe17cff.tar.gz blackbird-op-linux-d97a860c4f3de98ba5040a22f305b7159fe17cff.zip | |
Merge branch 'linus' into sched/core
Reason: Bring bakc upstream modification to resolve conflicts
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/arm/mach-zynq/common.c')
| -rw-r--r-- | arch/arm/mach-zynq/common.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/arch/arm/mach-zynq/common.c b/arch/arm/mach-zynq/common.c index 1db2a5ca9ab8..8c09a8393fb6 100644 --- a/arch/arm/mach-zynq/common.c +++ b/arch/arm/mach-zynq/common.c @@ -25,6 +25,7 @@ #include <linux/of_irq.h> #include <linux/of_platform.h> #include <linux/of.h> +#include <linux/memblock.h> #include <linux/irqchip.h> #include <linux/irqchip/arm-gic.h> @@ -41,6 +42,18 @@ void __iomem *zynq_scu_base; +/** + * zynq_memory_init - Initialize special memory + * + * We need to stop things allocating the low memory as DMA can't work in + * the 1st 512K of memory. + */ +static void __init zynq_memory_init(void) +{ + if (!__pa(PAGE_OFFSET)) + memblock_reserve(__pa(PAGE_OFFSET), __pa(swapper_pg_dir)); +} + static struct platform_device zynq_cpuidle_device = { .name = "cpuidle-zynq", }; @@ -117,5 +130,6 @@ DT_MACHINE_START(XILINX_EP107, "Xilinx Zynq Platform") .init_machine = zynq_init_machine, .init_time = zynq_timer_init, .dt_compat = zynq_dt_match, + .reserve = zynq_memory_init, .restart = zynq_system_reset, MACHINE_END |
