[PATCH v3 3/5(7)] OMAP1: Amstrad Delta: use FIQ for processing GPIO interrupts

Janusz Krzysztofik
2010-04-15T02:31:32Z

The patch adds initialization of FIQ related handlers to the Amstrad Delta
videophone board code. FIQ will be used instead of a traditional IRQ for
processing all GPIO generated interrupts, including a keyboard serial clock
line.

Created and tested against linux-2.6.34-rc4.
Compiles and works on top of PATCH v3 2/5(7), "OMAP1: Amstrad Delta: add a
handler for processing interrupts generated by the FIQ routine". Also requires
PATCH v3 2.1/5(7), "OMAP1: Amstrad Delta: update board initialization code
for complete modem IRQ GPIO line setup" for correct modem handling.

Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>
---
v2 changes:
- no functional changes,
- refreshed against linux-2.6.34-rc2.
v3 changes:
- drop intermediate defconfig modification

arch/arm/mach-omap1/board-ams-delta.c | 6 ++++++
1 file changed, 6 insertions(+)

--- git.orig/arch/arm/mach-omap1/board-ams-delta.c 2010-04-14 22:18:25.000000000 +0200
+++ git/arch/arm/mach-omap1/board-ams-delta.c 2010-04-14 23:52:07.000000000 +0200
@@ -33,6 +33,8 @@
#include <plat/board.h>
#include <plat/common.h>

+#include <mach/ams-delta-fiq.h>
+
static u8 ams_delta_latch1_reg;
static u16 ams_delta_latch2_reg;

@@ -236,6 +238,10 @@ static void __init ams_delta_init(void)
omap_usb_init(&ams_delta_usb_config);
platform_add_devices(ams_delta_devices, ARRAY_SIZE(ams_delta_devices));

+#ifdef CONFIG_AMS_DELTA_FIQ
+ ams_delta_init_fiq();
+#endif
+
omap_writew(omap_readw(ARM_RSTCT1) | 0x0004, ARM_RSTCT1);
}