diff options
| author |   Alessandro Rubini <rubini@gnudd.com> | 2009-07-02 19:06:47 +0100 |
|---|---|---|
| committer |   Russell King <rmk+kernel@arm.linux.org.uk> | 2009-07-02 21:20:44 +0100 |
| commit | 28ad94ec61dc60207dbffdb95ff870c617fbb832 (patch) | |
| tree | 4ee4d2fc06f98d70c0f7f803179b94638bc0e850 /arch/arm/mach-nomadik/include/mach/entry-macro.S | |
| parent | [ARM] 5583/1: VIC: acknowledge software interrupts (diff) | |
| download | linux-dev-28ad94ec61dc60207dbffdb95ff870c617fbb832.tar.xz linux-dev-28ad94ec61dc60207dbffdb95ff870c617fbb832.zip | |
[ARM] 5590/1: Add basic support for ST Nomadik 8815 SoC and evaluation board
This patch adds the basic infrastructure for the Nomadik 8815
CPU and the "Nomadik Hardware Kit" NHK8815. This patch only
includes the serial console and core stuff, no drivers.
Signed-off-by: Alessandro Rubini <rubini@unipv.it>
Acked-by: Andrea Gallo <andrea.gallo@stericsson.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-nomadik/include/mach/entry-macro.S')
| -rw-r--r-- | arch/arm/mach-nomadik/include/mach/entry-macro.S | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/arch/arm/mach-nomadik/include/mach/entry-macro.S b/arch/arm/mach-nomadik/include/mach/entry-macro.S new file mode 100644 index 000000000000..49f1aa3bb420 --- /dev/null +++ b/arch/arm/mach-nomadik/include/mach/entry-macro.S @@ -0,0 +1,43 @@ +/* + * Low-level IRQ helper macros for Nomadik 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 <mach/hardware.h> +#include <mach/irqs.h> + + .macro disable_fiq + .endm + + .macro get_irqnr_preamble, base, tmp + ldr \base, =IO_ADDRESS(NOMADIK_IC_BASE) + .endm + + .macro arch_ret_to_user, tmp1, tmp2 + .endm + + .macro get_irqnr_and_base, irqnr, irqstat, base, tmp + + /* This stanza gets the irq mask from one of two status registers */ + mov \irqnr, #0 + ldr \irqstat, [\base, #VIC_REG_IRQSR0] @ get masked status + cmp \irqstat, #0 + bne 1001f + add \irqnr, \irqnr, #32 + ldr \irqstat, [\base, #VIC_REG_IRQSR1] @ get masked status + +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 |