iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
linux/arch/arm/mach-davinci/include/mach/entry-macro.S

52 lines
1.3 KiB
ArmAsm
Raw Normal View History

[ARM] 4303/3: base kernel support for TI DaVinci Add base kernel support for the TI DaVinci platform. This patch only includes interrupts, timers, CPU identification, serial support and basic power and sleep controller init. More drivers to come. Signed-off-by: Kevin Hilman <khilman@mvista.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-04-30 19:37:19 +01:00
/*
* Low-level IRQ helper macros for TI DaVinci-based platforms
*
* Author: Kevin Hilman, MontaVista Software, Inc. <source@mvista.com>
*
* 2007 (c) MontaVista Software, Inc. 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.
*/
[ARM] Move include/asm-arm/arch-* to arch/arm/*/include/mach This just leaves include/asm-arm/plat-* to deal with. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-08-05 16:14:15 +01:00
#include <mach/io.h>
#include <mach/irqs.h>
[ARM] 4303/3: base kernel support for TI DaVinci Add base kernel support for the TI DaVinci platform. This patch only includes interrupts, timers, CPU identification, serial support and basic power and sleep controller init. More drivers to come. Signed-off-by: Kevin Hilman <khilman@mvista.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-04-30 19:37:19 +01:00
.macro disable_fiq
.endm
.macro get_irqnr_preamble, base, tmp
davinci: Move interrupt ctlr info to SoC infrastructure Use the SoC infrastructure to hold the interrupt controller information (i.e., base address, default priorities, interrupt controller type, and the number of IRQs). The interrupt controller base, although initially put in the soc_info structure's intc_base field, is eventually put in the global 'davinci_intc_base' so the low-level interrupt code can access it without a dereference. These changes enable the SoC default irq priorities to be put in the SoC-specific files, and the interrupt controller to be at any base address. Signed-off-by: Mark A. Greer <mgreer@mvista.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
2009-04-15 12:40:00 -07:00
ldr \base, =davinci_intc_base
ldr \base, [\base]
[ARM] 4303/3: base kernel support for TI DaVinci Add base kernel support for the TI DaVinci platform. This patch only includes interrupts, timers, CPU identification, serial support and basic power and sleep controller init. More drivers to come. Signed-off-by: Kevin Hilman <khilman@mvista.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-04-30 19:37:19 +01:00
.endm
.macro arch_ret_to_user, tmp1, tmp2
.endm
.macro get_irqnr_and_base, irqnr, irqstat, base, tmp
davinci: Integrate cp_intc support into low-level irq code Integrate the Common Platform Interrupt Controller (cp_intc) support into the low-level irq handling for davinci and similar platforms. Do it such that support for cp_intc and the original aintc can coexist in the same kernel binary. Signed-off-by: Mark A. Greer <mgreer@mvista.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
2009-04-15 12:41:40 -07:00
#if defined(CONFIG_AINTC) && defined(CONFIG_CP_INTC)
ldr \tmp, =davinci_intc_type
ldr \tmp, [\tmp]
cmp \tmp, #DAVINCI_INTC_TYPE_CP_INTC
beq 1001f
#endif
#if defined(CONFIG_AINTC)
[ARM] 4303/3: base kernel support for TI DaVinci Add base kernel support for the TI DaVinci platform. This patch only includes interrupts, timers, CPU identification, serial support and basic power and sleep controller init. More drivers to come. Signed-off-by: Kevin Hilman <khilman@mvista.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-04-30 19:37:19 +01:00
ldr \tmp, [\base, #0x14]
davinci: interrupts: get_irqnr_and_base: save an instruction Signed-off-by: Troy Kisky <troy.kisky@boundarydevices.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
2008-02-11 14:44:07 -07:00
movs \tmp, \tmp, lsr #2
[ARM] 4303/3: base kernel support for TI DaVinci Add base kernel support for the TI DaVinci platform. This patch only includes interrupts, timers, CPU identification, serial support and basic power and sleep controller init. More drivers to come. Signed-off-by: Kevin Hilman <khilman@mvista.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-04-30 19:37:19 +01:00
sub \irqnr, \tmp, #1
davinci: Integrate cp_intc support into low-level irq code Integrate the Common Platform Interrupt Controller (cp_intc) support into the low-level irq handling for davinci and similar platforms. Do it such that support for cp_intc and the original aintc can coexist in the same kernel binary. Signed-off-by: Mark A. Greer <mgreer@mvista.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
2009-04-15 12:41:40 -07:00
b 1002f
#endif
#if defined(CONFIG_CP_INTC)
1001: ldr \irqnr, [\base, #0x80] /* get irq number */
and \irqnr, \irqnr, #0xff /* irq is in bits 0-9 */
mov \tmp, \irqnr, lsr #3
and \tmp, \tmp, #0xfc
add \tmp, \tmp, #0x280 /* get the register offset */
ldr \irqstat, [\base, \tmp] /* get the intc status */
cmp \irqstat, #0x0
#endif
1002:
[ARM] 4303/3: base kernel support for TI DaVinci Add base kernel support for the TI DaVinci platform. This patch only includes interrupts, timers, CPU identification, serial support and basic power and sleep controller init. More drivers to come. Signed-off-by: Kevin Hilman <khilman@mvista.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-04-30 19:37:19 +01:00
.endm
.macro irq_prio_table
.endm
Reference in New Issue Copy Permalink