linux-kernel - [PATCH try2] powerpc: Add support for PORTA and PORTB odr registers

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Message-ID: <474316A4.4010807@scram.de>
Date:	Tue, 20 Nov 2007 18:17:24 +0100
From:	Jochen Friedrich <jochen@...am.de>
To:	linuxppc-embedded@...abs.org
CC:	linux-kernel@...r.kernel.org, Scott Wood <scottwood@...escale.com>,
	paulus@...ba.org
Subject: [PATCH try2] powerpc: Add support for PORTA and PORTB odr registers

PORTA and PORTB have odr registers, as well. However, the PORTB odr
register is only 16bit.

Signed-off-by: Jochen Friedrich <jochen@...am.de>
---
 arch/powerpc/sysdev/commproc.c |   19 ++++++++++++++++---
 1 files changed, 16 insertions(+), 3 deletions(-)

diff --git a/arch/powerpc/sysdev/commproc.c b/arch/powerpc/sysdev/commproc.c
index d5a0dcf..c0d00c2 100644
--- a/arch/powerpc/sysdev/commproc.c
+++ b/arch/powerpc/sysdev/commproc.c
@@ -411,7 +411,7 @@ EXPORT_SYMBOL(cpm_dpram_phys);
 #endif /* !CONFIG_PPC_CPM_NEW_BINDING */

 struct cpm_ioport16 {
-	__be16 dir, par, sor, dat, intr;
+	__be16 dir, par, odr_sor, dat, intr;
 	__be16 res[3];
 };

@@ -441,6 +441,13 @@ static void cpm1_set_pin32(int port, int pin, int flags)
 	else
 		clrbits32(&iop->par, pin);

+	if (port == CPM_PORTB) {
+		if (flags & CPM_PIN_OPENDRAIN)
+			setbits16(&mpc8xx_immr->im_cpm.cp_pbodr, pin);
+		else
+			clrbits16(&mpc8xx_immr->im_cpm.cp_pbodr, pin);
+	}
+
 	if (port == CPM_PORTE) {
 		if (flags & CPM_PIN_SECONDARY)
 			setbits32(&iop->sor, pin);
@@ -474,11 +481,17 @@ static void cpm1_set_pin16(int port, int pin, int flags)
 	else
 		clrbits16(&iop->par, pin);

+	if (port == CPM_PORTA) {
+		if (flags & CPM_PIN_OPENDRAIN)
+			setbits16(&iop->odr_sor, pin);
+		else
+			clrbits16(&iop->odr_sor, pin);
+	}
 	if (port == CPM_PORTC) {
 		if (flags & CPM_PIN_SECONDARY)
-			setbits16(&iop->sor, pin);
+			setbits16(&iop->odr_sor, pin);
 		else
-			clrbits16(&iop->sor, pin);
+			clrbits16(&iop->odr_sor, pin);
 	}
 }

-- 
1.5.3.4


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