[PATCH 131/141] V4L/DVB (3403): Workaround to fix initializationfor Nexus CA

[mchehab]

From: Marco Schluessler <marco@xxxxxxxxxxxxx>
Date: 1140817980 -0300

Workaround for Nexus CA: Debi test fails unless first debi write is repeated.

Signed-off-by: Marco Schluessler <marco@xxxxxxxxxxxxx>
Signed-off-by: Oliver Endriss <o.endriss@xxxxxx>
Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxx>
---

diff --git a/drivers/media/dvb/ttpci/av7110_hw.c b/drivers/media/dvb/ttpci/av7110_hw.c
diff --git a/drivers/media/dvb/ttpci/av7110_hw.c b/drivers/media/dvb/ttpci/av7110_hw.c
index 3c5366d..75736f2 100644
--- a/drivers/media/dvb/ttpci/av7110_hw.c
+++ b/drivers/media/dvb/ttpci/av7110_hw.c
@@ -245,6 +245,9 @@ int av7110_bootarm(struct av7110 *av7110
 
 	/* test DEBI */
 	iwdebi(av7110, DEBISWAP, DPRAM_BASE, 0x76543210, 4);
+	/* FIXME: Why does Nexus CA require 2x iwdebi for first init? */
+	iwdebi(av7110, DEBISWAP, DPRAM_BASE, 0x76543210, 4);
+
 	if ((ret=irdebi(av7110, DEBINOSWAP, DPRAM_BASE, 0, 4)) != 0x10325476) {
 		printk(KERN_ERR "dvb-ttpci: debi test in av7110_bootarm() failed: "
 		       "%08x != %08x (check your BIOS 'Plug&Play OS' settings)\n",

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