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authorStephen Warren <swarren@nvidia.com>2012-05-15 06:45:28 +0000
committerAlbert ARIBAUD <albert.u.boot@aribaud.net>2012-07-07 14:07:17 +0200
commitd5ebc937c90b95f52bd85c15ce74edff4df2e0be (patch)
tree43412c78db6eab5fa174dfe96a09480d29f8eb98 /board/nvidia/whistler/whistler.c
parentb9607e70614823893d1a47a377232d2a12e4464f (diff)
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tegra: Whistler board support
Whistler is a highly configurable Tegra evaluation and development board. This change adds support for the following specific configuration: E1120 motherboard E1108 CPU board E1116 PMU board The motherboard configuration switches are set as follows: SW1=0 SW2=0 SW3=5 S1/S2/S3/S4 all on, except S3 7/8 are off. Other combinations of daugher boards may work to varying degrees, but will likely require some SW adjustment. Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Tom Warren <twarren@nvidia.com>
Diffstat (limited to 'board/nvidia/whistler/whistler.c')
-rw-r--r--board/nvidia/whistler/whistler.c116
1 files changed, 116 insertions, 0 deletions
diff --git a/board/nvidia/whistler/whistler.c b/board/nvidia/whistler/whistler.c
new file mode 100644
index 0000000..1c2f33f
--- /dev/null
+++ b/board/nvidia/whistler/whistler.c
@@ -0,0 +1,116 @@
+/*
+ * (C) Copyright 2010-2012
+ * NVIDIA Corporation <www.nvidia.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <i2c.h>
+#include <asm/io.h>
+#include <asm/arch/tegra2.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/funcmux.h>
+#include <asm/arch/pinmux.h>
+#include <asm/arch/mmc.h>
+#include <asm/gpio.h>
+#ifdef CONFIG_TEGRA2_MMC
+#include <mmc.h>
+#endif
+
+/*
+ * Routine: gpio_config_uart
+ * Description: Does nothing on Whistler - no UART-related GPIOs.
+ */
+void gpio_config_uart(void)
+{
+}
+
+/*
+ * Routine: pin_mux_mmc
+ * Description: setup the pin muxes/tristate values for the SDMMC(s)
+ */
+static void pin_mux_mmc(void)
+{
+ funcmux_select(PERIPH_ID_SDMMC3, FUNCMUX_SDMMC3_SDB_SLXA_8BIT);
+ funcmux_select(PERIPH_ID_SDMMC4, FUNCMUX_SDMMC4_ATC_ATD_8BIT);
+}
+
+/* this is a weak define that we are overriding */
+int board_mmc_init(bd_t *bd)
+{
+ uchar val;
+ int ret;
+
+ debug("board_mmc_init called\n");
+
+ /* Turn on MAX8907B LDO12 to 2.8V for J40 power */
+ ret = i2c_set_bus_num(0);
+ if (ret)
+ printf("i2c_set_bus_num failed: %d\n", ret);
+ val = 0x29;
+ ret = i2c_write(0x3c, 0x46, 1, &val, 1);
+ if (ret)
+ printf("i2c_write 0 0x3c 0x46 failed: %d\n", ret);
+ val = 0x00;
+ ret = i2c_write(0x3c, 0x45, 1, &val, 1);
+ if (ret)
+ printf("i2c_write 0 0x3c 0x45 failed: %d\n", ret);
+ val = 0x1f;
+ ret = i2c_write(0x3c, 0x44, 1, &val, 1);
+ if (ret)
+ printf("i2c_write 0 0x3c 0x44 failed: %d\n", ret);
+
+ /* Enable muxes, etc. for SDMMC controllers */
+ pin_mux_mmc();
+
+ /* init dev 0 (SDMMC4), (J29 "HSMMC") with 8-bit bus */
+ tegra2_mmc_init(0, 8, -1, -1);
+
+ /* init dev 1 (SDMMC3), (J40 "SDIO3") with 8-bit bus */
+ tegra2_mmc_init(1, 8, -1, -1);
+
+ return 0;
+}
+
+/* this is a weak define that we are overriding */
+void pin_mux_usb(void)
+{
+ uchar val;
+ int ret;
+
+ /*
+ * This is a hack. This should be represented in DT using the
+ * vbus-gpio property. However, U-Boot's DT support doesn't
+ * support any GPIO controller other than the Tegra's yet.
+ */
+
+ /* Turn on TAC6416's GPIO 0+1 for USB1/3's VBUS */
+ ret = i2c_set_bus_num(0);
+ if (ret)
+ printf("i2c_set_bus_num failed: %d\n", ret);
+ val = 0x03;
+ ret = i2c_write(0x20, 2, 1, &val, 1);
+ if (ret)
+ printf("i2c_write 0 0x20 2 failed: %d\n", ret);
+ val = 0xfc;
+ ret = i2c_write(0x20, 6, 1, &val, 1);
+ if (ret)
+ printf("i2c_write 0 0x20 6 failed: %d\n", ret);
+}