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authorSimon Glass <sjg@chromium.org>2012-10-17 13:24:46 +0000
committerTom Warren <twarren@nvidia.com>2012-11-19 08:15:35 -0700
commitb34449611025837f315485c7bf54bf5b7ae85d06 (patch)
treebc6d8d62d015a82dd07230ac6a15a737af03cedf /arch/arm/cpu
parent95be58c988ce5d75baf47da88caeae086f9b51d0 (diff)
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tegra: Add display support to funcmux
Add support for a default pin mapping for display1. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
Diffstat (limited to 'arch/arm/cpu')
-rw-r--r--arch/arm/cpu/tegra20-common/funcmux.c37
1 files changed, 37 insertions, 0 deletions
diff --git a/arch/arm/cpu/tegra20-common/funcmux.c b/arch/arm/cpu/tegra20-common/funcmux.c
index 00b8029..ece7ad9 100644
--- a/arch/arm/cpu/tegra20-common/funcmux.c
+++ b/arch/arm/cpu/tegra20-common/funcmux.c
@@ -25,6 +25,30 @@
#include <asm/arch/funcmux.h>
#include <asm/arch/pinmux.h>
+/*
+ * The PINMUX macro is used to set up pinmux tables.
+ */
+#define PINMUX(grp, mux, pupd, tri) \
+ {PINGRP_##grp, PMUX_FUNC_##mux, PMUX_PULL_##pupd, PMUX_TRI_##tri}
+
+static const struct pingroup_config disp1_default[] = {
+ PINMUX(LDI, DISPA, NORMAL, NORMAL),
+ PINMUX(LHP0, DISPA, NORMAL, NORMAL),
+ PINMUX(LHP1, DISPA, NORMAL, NORMAL),
+ PINMUX(LHP2, DISPA, NORMAL, NORMAL),
+ PINMUX(LHS, DISPA, NORMAL, NORMAL),
+ PINMUX(LM0, RSVD4, NORMAL, NORMAL),
+ PINMUX(LPP, DISPA, NORMAL, NORMAL),
+ PINMUX(LPW0, DISPA, NORMAL, NORMAL),
+ PINMUX(LPW2, DISPA, NORMAL, NORMAL),
+ PINMUX(LSC0, DISPA, NORMAL, NORMAL),
+ PINMUX(LSPI, DISPA, NORMAL, NORMAL),
+ PINMUX(LVP1, DISPA, NORMAL, NORMAL),
+ PINMUX(LVS, DISPA, NORMAL, NORMAL),
+ PINMUX(SLXD, SPDIF, NORMAL, NORMAL),
+};
+
+
int funcmux_select(enum periph_id id, int config)
{
int bad_config = config != FUNCMUX_DEFAULT;
@@ -257,6 +281,19 @@ int funcmux_select(enum periph_id id, int config)
break;
}
break;
+ case PERIPH_ID_DISP1:
+ if (config == FUNCMUX_DEFAULT) {
+ int i;
+
+ for (i = PINGRP_LD0; i <= PINGRP_LD17; i++) {
+ pinmux_set_func(i, PMUX_FUNC_DISPA);
+ pinmux_tristate_disable(i);
+ pinmux_set_pullupdown(i, PMUX_PULL_NORMAL);
+ }
+ pinmux_config_table(disp1_default,
+ ARRAY_SIZE(disp1_default));
+ }
+ break;
default:
debug("%s: invalid periph_id %d", __func__, id);