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MIPS: Refactor GIC clocksource code.

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Reorganize some of the GIC clocksource driver code. Below is a list of
the various changes.

  * No longer select CSRC_GIC by default for Malta platform.
  * Limit choice for either the GIC or R4K clocksource, not both.
  * Change location in Makefile.
  * Created new 'gic_read_count' function in common 'irq-gic.c' file.
  * Change 'git_hpt_read' function in 'csrc-gic.c' to use new function.
  * Surround GIC specific code in Malta platform code with #ifdef's.
  * Only initialize the GIC clocksource if it was selected. Original
    code called it unconditionally if a GIC was found.

Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
This commit is contained in:
Steven J. Hill
2013-04-10 16:28:36 -05:00
committed by Ralf Baechle
parent 28ea215186
commit dfa762e1c3
6 changed files with 48 additions and 25 deletions
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4
arch/mips/include/asm/gic.h
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@@ -359,6 +359,9 @@ struct gic_shared_intr_map {
/* Mapped interrupt to pin X, then GIC will generate the vector (X+1). */
#define GIC_PIN_TO_VEC_OFFSET (1)
#include <linux/clocksource.h>
#include <linux/irq.h>
extern unsigned int gic_present;
extern unsigned int gic_frequency;
extern unsigned long _gic_base;
@@ -372,6 +375,7 @@ extern void gic_init(unsigned long gic_base_addr,
extern void gic_clocksource_init(unsigned int);
extern unsigned int gic_get_int(void);
extern cycle_t gic_read_count(void);
extern void gic_send_ipi(unsigned int intr);
extern unsigned int plat_ipi_call_int_xlate(unsigned int);
extern unsigned int plat_ipi_resched_int_xlate(unsigned int);