tegra: Whistler board support

[karo-tx-uboot.git] / board / nvidia / whistler / whistler.c

diff --git a/board/nvidia/whistler/whistler.c b/board/nvidia/whistler/whistler.c
new file mode 100644 (file)
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);
+}