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authorLinus Torvalds <torvalds@linux-foundation.org>2010-10-22 01:42:32 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2010-10-22 01:42:32 +0200
commitb5153163ed580e00c67bdfecb02b2e3843817b3e (patch)
treeb8c878601f07f5df8f694435857a5f3dcfd75482 /arch/arm/plat-tcc/include/mach/entry-macro.S
parentMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/raf... (diff)
parentarm: remove machine_desc.io_pg_offst and .phys_io (diff)
downloadlinux-b5153163ed580e00c67bdfecb02b2e3843817b3e.tar.xz
linux-b5153163ed580e00c67bdfecb02b2e3843817b3e.zip
Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (278 commits) arm: remove machine_desc.io_pg_offst and .phys_io arm: use addruart macro to establish debug mappings arm: return both physical and virtual addresses from addruart arm/debug: consolidate addruart macros for CONFIG_DEBUG_ICEDCC ARM: make struct machine_desc definition coherent with its comment eukrea_mbimxsd-baseboard: Pass the correct GPIO to gpio_free cpuimx27: fix compile when ULPI is selected mach-pcm037_eet: fix compile errors Fixing ethernet driver compilation error for i.MX31 ADS board cpuimx51: update board support mx5: add cpuimx51sd module and its baseboard iomux-mx51: fix GPIO_1_xx 's IOMUX configuration imx-esdhc: update devices registration mx51: add resources for SD/MMC on i.MX51 iomux-mx51: fix SD1 and SD2's iomux configuration clock-mx51: rename CLOCK1 to CLOCK_CCGR for better readability clock-mx51: factorize clk_set_parent and clk_get_rate eukrea_mbimxsd: add support for DVI displays cpuimx25 & cpuimx35: fix OTG port registration in host mode i.MX31 and i.MX35 : fix errate TLSbo65953 and ENGcm09472 ...
Diffstat (limited to 'arch/arm/plat-tcc/include/mach/entry-macro.S')
-rw-r--r--arch/arm/plat-tcc/include/mach/entry-macro.S68
1 files changed, 68 insertions, 0 deletions
diff --git a/arch/arm/plat-tcc/include/mach/entry-macro.S b/arch/arm/plat-tcc/include/mach/entry-macro.S
new file mode 100644
index 000000000000..748f401e4b6d
--- /dev/null
+++ b/arch/arm/plat-tcc/include/mach/entry-macro.S
@@ -0,0 +1,68 @@
+/*
+ * include/asm-arm/arch-tcc83x/entry-macro.S
+ *
+ * Author : <linux@telechips.com>
+ * Created: June 10, 2008
+ * Description: Low-level IRQ helper macros for Telechips-based platforms
+ *
+ * Copyright (C) 2008-2009 Telechips
+ *
+ * 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
+ .endm
+
+ .macro arch_ret_to_user, tmp1, tmp2
+ .endm
+
+ .macro get_irqnr_and_base, irqnr, irqstat, base, tmp
+
+ ldr \base, =0xF2003000 @ base address of PIC registers
+
+ @@ read MREQ register of PIC0
+
+ mov \irqnr, #0
+ ldr \irqstat, [\base, #0x00000014 ] @ lower 32 interrupts
+ cmp \irqstat, #0
+ bne 1001f
+
+ @@ read MREQ register of PIC1
+
+ ldr \irqstat, [\base, #0x00000094] @ upper 32 interrupts
+ cmp \irqstat, #0
+ beq 1002f
+ mov \irqnr, #0x20
+
+1001:
+ movs \tmp, \irqstat, lsl #16
+ movne \irqstat, \tmp
+ addeq \irqnr, \irqnr, #16
+
+ movs \tmp, \irqstat, lsl #8
+ movne \irqstat, \tmp
+ addeq \irqnr, \irqnr, #8
+
+ movs \tmp, \irqstat, lsl #4
+ movne \irqstat, \tmp
+ addeq \irqnr, \irqnr, #4
+
+ movs \tmp, \irqstat, lsl #2
+ movne \irqstat, \tmp
+ addeq \irqnr, \irqnr, #2
+
+ movs \tmp, \irqstat, lsl #1
+ addeq \irqnr, \irqnr, #1
+ orrs \base, \base, #1
+1002:
+ @@ exit here, Z flag unset if IRQ
+
+ .endm