Update from 2013.01 to 2013.07

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

diff --git a/board/nvidia/cardhu/cardhu.c b/board/nvidia/cardhu/cardhu.c
new file mode 100644 (file)
index 0000000..47e7abe
--- /dev/null
+++ b/board/nvidia/cardhu/cardhu.c
@@ -0,0 +1,78 @@
+/*
+ *  (C) Copyright 2010-2013
+ *  NVIDIA Corporation <www.nvidia.com>
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/arch/pinmux.h>
+#include <asm/arch/gp_padctrl.h>
+#include "pinmux-config-cardhu.h"
+#include <i2c.h>
+
+#define PMU_I2C_ADDRESS                0x2D
+#define MAX_I2C_RETRY          3
+
+/*
+ * Routine: pinmux_init
+ * Description: Do individual peripheral pinmux configs
+ */
+void pinmux_init(void)
+{
+       pinmux_config_table(tegra3_pinmux_common,
+               ARRAY_SIZE(tegra3_pinmux_common));
+
+       pinmux_config_table(unused_pins_lowpower,
+               ARRAY_SIZE(unused_pins_lowpower));
+
+       /* Initialize any non-default pad configs (APB_MISC_GP regs) */
+       padgrp_config_table(cardhu_padctrl, ARRAY_SIZE(cardhu_padctrl));
+}
+
+#if defined(CONFIG_TEGRA_MMC)
+/*
+ * Do I2C/PMU writes to bring up SD card bus power
+ *
+ */
+void board_sdmmc_voltage_init(void)
+{
+       uchar reg, data_buffer[1];
+       int i;
+
+       i2c_set_bus_num(0);     /* PMU is on bus 0 */
+
+       /* TPS659110: LDO5_REG = 3.3v, ACTIVE to SDMMC1 */
+       data_buffer[0] = 0x65;
+       reg = 0x32;
+
+       for (i = 0; i < MAX_I2C_RETRY; ++i) {
+               if (i2c_write(PMU_I2C_ADDRESS, reg, 1, data_buffer, 1))
+                       udelay(100);
+       }
+
+       /* TPS659110: GPIO7_REG = PDEN, output a 1 to EN_3V3_SYS */
+       data_buffer[0] = 0x09;
+       reg = 0x67;
+
+       for (i = 0; i < MAX_I2C_RETRY; ++i) {
+               if (i2c_write(PMU_I2C_ADDRESS, reg, 1, data_buffer, 1))
+                       udelay(100);
+       }
+}
+
+/*
+ * Routine: pin_mux_mmc
+ * Description: setup the MMC muxes, power rails, etc.
+ */
+void pin_mux_mmc(void)
+{
+       /*
+        * NOTE: We don't do mmc-specific pin muxes here.
+        * They were done globally in pinmux_init().
+        */
+
+       /* Bring up the SDIO1 power rail */
+       board_sdmmc_voltage_init();
+}
+#endif /* MMC */