arm/tegra: add support for ventana pinmuxing

Add support for ventana pinmuxing as a seaboard derivative. This is a cut down
version of work done by Jong Kim <jongk@nvidia.com>.

Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>

diff --git a/arch/arm/mach-tegra/Makefile b/arch/arm/mach-tegra/Makefile
index f11b910..91a07e1 100644 (file)
--- a/arch/arm/mach-tegra/Makefile
+++ b/arch/arm/mach-tegra/Makefile
@@ -31,6 +31,7 @@ obj-${CONFIG_MACH_SEABOARD}             += board-seaboard-pinmux.o
 
 obj-${CONFIG_MACH_TEGRA_DT}             += board-dt.o
 obj-${CONFIG_MACH_TEGRA_DT}             += board-harmony-pinmux.o
+obj-${CONFIG_MACH_TEGRA_DT}             += board-seaboard-pinmux.o
 
 obj-${CONFIG_MACH_TRIMSLICE}            += board-trimslice.o
 obj-${CONFIG_MACH_TRIMSLICE}            += board-trimslice-pinmux.o

diff --git a/arch/arm/mach-tegra/board-seaboard-pinmux.c b/arch/arm/mach-tegra/board-seaboard-pinmux.c
index 841e467..dd3b740 100644 (file)
--- a/arch/arm/mach-tegra/board-seaboard-pinmux.c
+++ b/arch/arm/mach-tegra/board-seaboard-pinmux.c
@@ -159,6 +159,27 @@ static __initdata struct tegra_pingroup_config seaboard_pinmux[] = {
        {TEGRA_PINGROUP_XM2D,  TEGRA_MUX_NONE,          TEGRA_PUPD_NORMAL,    TEGRA_TRI_NORMAL},
 };
 
+static __initdata struct tegra_pingroup_config ventana_pinmux[] = {
+       {TEGRA_PINGROUP_DAP3, TEGRA_MUX_DAP3,     TEGRA_PUPD_NORMAL,    TEGRA_TRI_TRISTATE},
+       {TEGRA_PINGROUP_DDC,  TEGRA_MUX_RSVD2,    TEGRA_PUPD_NORMAL,    TEGRA_TRI_NORMAL},
+       {TEGRA_PINGROUP_DTA,  TEGRA_MUX_VI,       TEGRA_PUPD_PULL_DOWN, TEGRA_TRI_NORMAL},
+       {TEGRA_PINGROUP_DTB,  TEGRA_MUX_VI,       TEGRA_PUPD_PULL_DOWN, TEGRA_TRI_NORMAL},
+       {TEGRA_PINGROUP_DTC,  TEGRA_MUX_VI,       TEGRA_PUPD_PULL_DOWN, TEGRA_TRI_NORMAL},
+       {TEGRA_PINGROUP_DTD,  TEGRA_MUX_VI,       TEGRA_PUPD_PULL_DOWN, TEGRA_TRI_NORMAL},
+       {TEGRA_PINGROUP_GMD,  TEGRA_MUX_SFLASH,   TEGRA_PUPD_NORMAL,    TEGRA_TRI_TRISTATE},
+       {TEGRA_PINGROUP_LPW0, TEGRA_MUX_RSVD4,    TEGRA_PUPD_NORMAL,    TEGRA_TRI_NORMAL},
+       {TEGRA_PINGROUP_LPW2, TEGRA_MUX_RSVD4,    TEGRA_PUPD_NORMAL,    TEGRA_TRI_NORMAL},
+       {TEGRA_PINGROUP_LSC1, TEGRA_MUX_RSVD4,    TEGRA_PUPD_NORMAL,    TEGRA_TRI_NORMAL},
+       {TEGRA_PINGROUP_LSCK, TEGRA_MUX_RSVD4,    TEGRA_PUPD_NORMAL,    TEGRA_TRI_TRISTATE},
+       {TEGRA_PINGROUP_LSDA, TEGRA_MUX_RSVD4,    TEGRA_PUPD_NORMAL,    TEGRA_TRI_TRISTATE},
+       {TEGRA_PINGROUP_PTA,  TEGRA_MUX_RSVD2,    TEGRA_PUPD_NORMAL,    TEGRA_TRI_NORMAL},
+       {TEGRA_PINGROUP_SLXC, TEGRA_MUX_SDIO3,    TEGRA_PUPD_NORMAL,    TEGRA_TRI_NORMAL},
+       {TEGRA_PINGROUP_SLXK, TEGRA_MUX_SDIO3,    TEGRA_PUPD_NORMAL,    TEGRA_TRI_NORMAL},
+       {TEGRA_PINGROUP_SPIA, TEGRA_MUX_GMI,      TEGRA_PUPD_NORMAL,    TEGRA_TRI_TRISTATE},
+       {TEGRA_PINGROUP_SPIC, TEGRA_MUX_GMI,      TEGRA_PUPD_NORMAL,    TEGRA_TRI_TRISTATE},
+       {TEGRA_PINGROUP_SPIG, TEGRA_MUX_SPI2_ALT, TEGRA_PUPD_NORMAL,    TEGRA_TRI_TRISTATE},
+};
+
 static struct platform_device *pinmux_devices[] = {
        &tegra_gpio_device,
        &tegra_pinmux_device,
@@ -173,6 +194,26 @@ static struct tegra_gpio_table common_gpio_table[] = {
        { .gpio = TEGRA_GPIO_ISL29018_IRQ,      .enable = true },
 };
 
+static void __init update_pinmux(struct tegra_pingroup_config *newtbl, int size)
+{
+       int i, j;
+       struct tegra_pingroup_config *new_pingroup, *base_pingroup;
+
+       /* Update base seaboard pinmux table with secondary board
+        * specific pinmux table table.
+        */
+       for (i = 0; i < size; i++) {
+               new_pingroup = &newtbl[i];
+               for (j = 0; j < ARRAY_SIZE(seaboard_pinmux); j++) {
+                       base_pingroup = &seaboard_pinmux[j];
+                       if (new_pingroup->pingroup == base_pingroup->pingroup) {
+                               *base_pingroup = *new_pingroup;
+                               break;
+                       }
+               }
+       }
+}
+
 void __init seaboard_common_pinmux_init(void)
 {
        platform_add_devices(pinmux_devices, ARRAY_SIZE(pinmux_devices));
@@ -189,3 +230,10 @@ void __init seaboard_pinmux_init(void)
 {
        seaboard_common_pinmux_init();
 }
+
+void __init ventana_pinmux_init(void)
+{
+       update_pinmux(ventana_pinmux, ARRAY_SIZE(ventana_pinmux));
+       seaboard_common_pinmux_init();
+}
+