From 871480933a1c28f8a9fed4c4d34d06c439a7a422 Mon Sep 17 00:00:00 2001 From: Srikant Patnaik Date: Sun, 11 Jan 2015 12:28:04 +0530 Subject: Moved, renamed, and deleted files The original directory structure was scattered and unorganized. Changes are basically to make it look like kernel structure. --- .../arm/mach-integrator/include/mach/entry-macro.S | 39 ++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 arch/arm/mach-integrator/include/mach/entry-macro.S (limited to 'arch/arm/mach-integrator/include/mach/entry-macro.S') diff --git a/arch/arm/mach-integrator/include/mach/entry-macro.S b/arch/arm/mach-integrator/include/mach/entry-macro.S new file mode 100644 index 00000000..5cc7b85a --- /dev/null +++ b/arch/arm/mach-integrator/include/mach/entry-macro.S @@ -0,0 +1,39 @@ +/* + * arch/arm/mach-integrator/include/mach/entry-macro.S + * + * Low-level IRQ helper macros for Integrator platforms + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + */ +#include +#include +#include + + .macro get_irqnr_preamble, base, tmp + .endm + + .macro get_irqnr_and_base, irqnr, irqstat, base, tmp +/* FIXME: should not be using soo many LDRs here */ + ldr \base, =IO_ADDRESS(INTEGRATOR_IC_BASE) + mov \irqnr, #IRQ_PIC_START + ldr \irqstat, [\base, #IRQ_STATUS] @ get masked status + ldr \base, =IO_ADDRESS(INTEGRATOR_HDR_BASE) + teq \irqstat, #0 + ldreq \irqstat, [\base, #(INTEGRATOR_HDR_IC_OFFSET+IRQ_STATUS)] + moveq \irqnr, #IRQ_CIC_START + +1001: tst \irqstat, #15 + bne 1002f + add \irqnr, \irqnr, #4 + movs \irqstat, \irqstat, lsr #4 + bne 1001b +1002: tst \irqstat, #1 + bne 1003f + add \irqnr, \irqnr, #1 + movs \irqstat, \irqstat, lsr #1 + bne 1002b +1003: /* EQ will be set if no irqs pending */ + .endm + -- cgit