Module Name: src
Committed By: jmcneill
Date: Sat Oct 17 21:14:49 UTC 2015
Modified Files:
src/sys/arch/arm/nvidia: tegra_pmc.c tegra_pmcreg.h
Log Message:
GPU power is controlled by a different register on Tegra124, handle this in
tegra_pmc_remove_clamping
To generate a diff of this commit:
cvs rdiff -u -r1.6 -r1.7 src/sys/arch/arm/nvidia/tegra_pmc.c
cvs rdiff -u -r1.4 -r1.5 src/sys/arch/arm/nvidia/tegra_pmcreg.h
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/arch/arm/nvidia/tegra_pmc.c
diff -u src/sys/arch/arm/nvidia/tegra_pmc.c:1.6 src/sys/arch/arm/nvidia/tegra_pmc.c:1.7
--- src/sys/arch/arm/nvidia/tegra_pmc.c:1.6 Mon May 25 10:40:23 2015
+++ src/sys/arch/arm/nvidia/tegra_pmc.c Sat Oct 17 21:14:49 2015
@@ -1,4 +1,4 @@
-/* $NetBSD: tegra_pmc.c,v 1.6 2015/05/25 10:40:23 jmcneill Exp $ */
+/* $NetBSD: tegra_pmc.c,v 1.7 2015/10/17 21:14:49 jmcneill Exp $ */
/*-
* Copyright (c) 2015 Jared D. McNeill <jmcne...@invisible.ca>
@@ -29,7 +29,7 @@
#include "locators.h"
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: tegra_pmc.c,v 1.6 2015/05/25 10:40:23 jmcneill Exp $");
+__KERNEL_RCSID(0, "$NetBSD: tegra_pmc.c,v 1.7 2015/10/17 21:14:49 jmcneill Exp $");
#include <sys/param.h>
#include <sys/bus.h>
@@ -152,6 +152,15 @@ tegra_pmc_remove_clamping(u_int partid)
tegra_pmc_get_bs(&bst, &bsh);
+ if (tegra_chip_id() == CHIP_ID_TEGRA124) {
+ /*
+ * On Tegra124 the GPU power clamping is controlled by a
+ * separate register
+ */
+ bus_space_write_4(bst, bsh, PMC_GPU_RG_CNTRL_REG, 0);
+ return;
+ }
+
bus_space_write_4(bst, bsh, PMC_REMOVE_CLAMPING_CMD_0_REG,
__BIT(partid));
}
Index: src/sys/arch/arm/nvidia/tegra_pmcreg.h
diff -u src/sys/arch/arm/nvidia/tegra_pmcreg.h:1.4 src/sys/arch/arm/nvidia/tegra_pmcreg.h:1.5
--- src/sys/arch/arm/nvidia/tegra_pmcreg.h:1.4 Mon May 18 21:03:36 2015
+++ src/sys/arch/arm/nvidia/tegra_pmcreg.h Sat Oct 17 21:14:49 2015
@@ -1,4 +1,4 @@
-/* $NetBSD: tegra_pmcreg.h,v 1.4 2015/05/18 21:03:36 jmcneill Exp $ */
+/* $NetBSD: tegra_pmcreg.h,v 1.5 2015/10/17 21:14:49 jmcneill Exp $ */
/*-
* Copyright (c) 2015 Jared D. McNeill <jmcne...@invisible.ca>
@@ -93,4 +93,7 @@
#define PMC_IO_DPD2_STATUS_REG 0x1c4
#define PMC_IO_DPD2_STATUS_HV __BIT(6)
+#define PMC_GPU_RG_CNTRL_REG 0x2d4
+#define PMC_GPU_RG_CNTRL_RAIL_CLAMP __BIT(0)
+
#endif /* _ARM_TEGRA_PMCREG_H */
