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authorThomas Bogendoerfer <tsbogend@alpha.franken.de>2011-11-22 14:38:02 +0000
committerRalf Baechle <ralf@linux-mips.org>2011-12-07 22:03:44 +0000
commite84de0c61905030a0fe66b7210b6f1bb7c3e1eab (patch)
tree005bbd00a34966e36dd99dcbfd66428bf97769fa /arch/mips/sgi-ip22/ip22-mc.c
parent5611cc4572e889b62a7b4c72a413536bf6a9c416 (diff)
MIPS: GIO bus support for SGI IP22/28
SGI IP22/IP28 machines have GIO busses for adding graphics and other extension cards. This patch adds support for GIO driver/device handling and converts the newport console driver to a GIO driver. [ralf@linux-mips.org: Fixed build error caused by the modules.h -> export.h changes.] Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Acked-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> To: linux-fbdev@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/2886/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/sgi-ip22/ip22-mc.c')
-rw-r--r--arch/mips/sgi-ip22/ip22-mc.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/arch/mips/sgi-ip22/ip22-mc.c b/arch/mips/sgi-ip22/ip22-mc.c
index d22262ee6853..75ada8a9713b 100644
--- a/arch/mips/sgi-ip22/ip22-mc.c
+++ b/arch/mips/sgi-ip22/ip22-mc.c
@@ -139,11 +139,11 @@ void __init sgimc_init(void)
* zero.
*/
/* don't touch parity settings for IP28 */
-#ifndef CONFIG_SGI_IP28
tmp = sgimc->cpuctrl0;
- tmp |= (SGIMC_CCTRL0_EPERRGIO | SGIMC_CCTRL0_EPERRMEM |
- SGIMC_CCTRL0_R4KNOCHKPARR);
+#ifndef CONFIG_SGI_IP28
+ tmp |= SGIMC_CCTRL0_EPERRGIO | SGIMC_CCTRL0_EPERRMEM;
#endif
+ tmp |= SGIMC_CCTRL0_R4KNOCHKPARR;
sgimc->cpuctrl0 = tmp;
/* Step 3: Setup the MC write buffer depth, this is controlled
@@ -178,7 +178,8 @@ void __init sgimc_init(void)
*/
/* First the basic invariants across all GIO64 implementations. */
- tmp = SGIMC_GIOPAR_HPC64; /* All 1st HPC's interface at 64bits */
+ tmp = sgimc->giopar & SGIMC_GIOPAR_GFX64; /* keep gfx 64bit settings */
+ tmp |= SGIMC_GIOPAR_HPC64; /* All 1st HPC's interface at 64bits */
tmp |= SGIMC_GIOPAR_ONEBUS; /* Only one physical GIO bus exists */
if (ip22_is_fullhouse()) {
@@ -193,7 +194,6 @@ void __init sgimc_init(void)
tmp |= SGIMC_GIOPAR_PLINEEXP0; /* exp[01] pipelined */
tmp |= SGIMC_GIOPAR_PLINEEXP1;
tmp |= SGIMC_GIOPAR_MASTEREISA; /* EISA masters */
- tmp |= SGIMC_GIOPAR_GFX64; /* GFX at 64 bits */
}
} else {
/* Guiness specific settings. */