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author | Chris Zankel | 2014-02-24 09:34:36 +0100 |
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committer | Chris Zankel | 2014-02-24 09:34:36 +0100 |
commit | b3fdfc1b4b641d372e35ced98814289bc60bc5d1 (patch) | |
tree | 5f11d5ba885031dde45690745646519fb887f447 /arch/arm/mach-zynq/common.c | |
parent | xtensa: fix fast_syscall_spill_registers (diff) | |
parent | xtensa: wire up sched_setattr and sched_getattr syscalls (diff) | |
download | kernel-qcow2-linux-b3fdfc1b4b641d372e35ced98814289bc60bc5d1.tar.gz kernel-qcow2-linux-b3fdfc1b4b641d372e35ced98814289bc60bc5d1.tar.xz kernel-qcow2-linux-b3fdfc1b4b641d372e35ced98814289bc60bc5d1.zip |
Merge tag 'xtensa-for-next-20140221-1' into for_next
Xtensa fixes for 3.14:
- allow booting xtfpga on boards with new uBoot and >128MBytes memory;
- drop nonexistent GPIO32 support from fsf variant;
- don't select USE_GENERIC_SMP_HELPERS;
- enable common clock framework support, set up ethoc clock on xtfpga;
- wire up sched_setattr and sched_getattr syscalls.
Signed-off-by: Chris Zankel <chris@zankel.net>
Diffstat (limited to 'arch/arm/mach-zynq/common.c')
-rw-r--r-- | arch/arm/mach-zynq/common.c | 28 |
1 files changed, 23 insertions, 5 deletions
diff --git a/arch/arm/mach-zynq/common.c b/arch/arm/mach-zynq/common.c index 9a7bd137c8fd..8c09a8393fb6 100644 --- a/arch/arm/mach-zynq/common.c +++ b/arch/arm/mach-zynq/common.c @@ -25,6 +25,9 @@ #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> #include <asm/mach/arch.h> #include <asm/mach/map.h> @@ -39,10 +42,17 @@ void __iomem *zynq_scu_base; -static struct of_device_id zynq_of_bus_ids[] __initdata = { - { .compatible = "simple-bus", }, - {} -}; +/** + * 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", @@ -59,7 +69,7 @@ static void __init zynq_init_machine(void) */ l2x0_of_init(0x02060000, 0xF0F0FFFF); - of_platform_bus_probe(NULL, zynq_of_bus_ids, NULL); + of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); platform_device_register(&zynq_cpuidle_device); } @@ -97,6 +107,12 @@ static void __init zynq_map_io(void) zynq_scu_map_io(); } +static void __init zynq_irq_init(void) +{ + gic_arch_extn.flags = IRQCHIP_SKIP_SET_WAKE | IRQCHIP_MASK_ON_SUSPEND; + irqchip_init(); +} + static void zynq_system_reset(enum reboot_mode mode, const char *cmd) { zynq_slcr_system_reset(); @@ -110,8 +126,10 @@ static const char * const zynq_dt_match[] = { DT_MACHINE_START(XILINX_EP107, "Xilinx Zynq Platform") .smp = smp_ops(zynq_smp_ops), .map_io = zynq_map_io, + .init_irq = zynq_irq_init, .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 |