1 files changed, 99 insertions, 0 deletions
diff --git a/board/bosch/guardian/mux.c b/board/bosch/guardian/mux.c
new file mode 100644
index 0000000000..708c3e7fdd
--- /dev/null
+++ b/board/bosch/guardian/mux.c
@@ -0,0 +1,99 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * mux.c
+ *
+ * Copyright (C) 2011, Texas Instruments, Incorporated - http://www.ti.com/
+ * Copyright (C) 2018 Robert Bosch Power Tools GmbH
+ */
+
+#include <common.h>
+#include <i2c.h>
+#include <asm/arch/hardware.h>
+#include <asm/arch/mux.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/io.h>
+#include "board.h"
+
+static struct module_pin_mux uart0_pin_mux[] = {
+	{OFFSET(uart0_rxd), (MODE(0) | PULLUP_EN | RXACTIVE)},
+	{OFFSET(uart0_txd), (MODE(0) | PULLUDEN)},
+	{-1},
+};
+
+static struct module_pin_mux i2c0_pin_mux[] = {
+	{OFFSET(i2c0_sda), (MODE(0) | RXACTIVE | PULLUDEN | SLEWCTRL)},
+	{OFFSET(i2c0_scl), (MODE(0) | RXACTIVE | PULLUDEN | SLEWCTRL)},
+	{-1},
+};
+
+static struct module_pin_mux adc_voltages_en[] = {
+	{OFFSET(mcasp0_ahclkx), (MODE(7) | PULLUP_EN)},
+	{-1},
+};
+
+static struct module_pin_mux asp_power_en[] = {
+	{OFFSET(mcasp0_aclkx), (MODE(7) | PULLUP_EN)},
+	{-1},
+};
+
+static struct module_pin_mux switch_off_3v6_pin_mux[] = {
+	{OFFSET(mii1_txd0), (MODE(7) | PULLUP_EN)},
+	/*
+	 * The uart1 lines are made floating inputs, based on the Guardian
+	 * A2 Sample Power Supply Schematics
+	 */
+	{OFFSET(uart1_rxd), (MODE(7) | PULLUDDIS)},
+	{OFFSET(uart1_txd), (MODE(7) | PULLUDDIS)},
+	{-1},
+};
+
+#ifdef CONFIG_NAND
+static struct module_pin_mux nand_pin_mux[] = {
+	{OFFSET(gpmc_ad0),      (MODE(0) | PULLUDDIS | RXACTIVE)},
+	{OFFSET(gpmc_ad1),      (MODE(0) | PULLUDDIS | RXACTIVE)},
+	{OFFSET(gpmc_ad2),      (MODE(0) | PULLUDDIS | RXACTIVE)},
+	{OFFSET(gpmc_ad3),      (MODE(0) | PULLUDDIS | RXACTIVE)},
+	{OFFSET(gpmc_ad4),      (MODE(0) | PULLUDDIS | RXACTIVE)},
+	{OFFSET(gpmc_ad5),      (MODE(0) | PULLUDDIS | RXACTIVE)},
+	{OFFSET(gpmc_ad6),      (MODE(0) | PULLUDDIS | RXACTIVE)},
+	{OFFSET(gpmc_ad7),      (MODE(0) | PULLUDDIS | RXACTIVE)},
+#ifdef CONFIG_SYS_NAND_BUSWIDTH_16BIT
+	{OFFSET(gpmc_ad8),      (MODE(0) | PULLUDDIS | RXACTIVE)},
+	{OFFSET(gpmc_ad9),      (MODE(0) | PULLUDDIS | RXACTIVE)},
+	{OFFSET(gpmc_ad10),     (MODE(0) | PULLUDDIS | RXACTIVE)},
+	{OFFSET(gpmc_ad11),     (MODE(0) | PULLUDDIS | RXACTIVE)},
+	{OFFSET(gpmc_ad12),     (MODE(0) | PULLUDDIS | RXACTIVE)},
+	{OFFSET(gpmc_ad13),     (MODE(0) | PULLUDDIS | RXACTIVE)},
+	{OFFSET(gpmc_ad14),     (MODE(0) | PULLUDDIS | RXACTIVE)},
+	{OFFSET(gpmc_ad15),     (MODE(0) | PULLUDDIS | RXACTIVE)},
+#endif
+	{OFFSET(gpmc_wait0),    (MODE(0) | PULLUP_EN | RXACTIVE)},
+	{OFFSET(gpmc_wpn),      (MODE(7) | PULLUP_EN)},
+	{OFFSET(gpmc_csn0),     (MODE(0) | PULLUP_EN)},
+	{OFFSET(gpmc_wen),      (MODE(0) | PULLDOWN_EN)},
+	{OFFSET(gpmc_oen_ren),  (MODE(0) | PULLDOWN_EN)},
+	{OFFSET(gpmc_advn_ale), (MODE(0) | PULLDOWN_EN)},
+	{OFFSET(gpmc_be0n_cle), (MODE(0) | PULLDOWN_EN)},
+	{-1},
+};
+#endif
+
+void enable_uart0_pin_mux(void)
+{
+	configure_module_pin_mux(uart0_pin_mux);
+}
+
+void enable_i2c0_pin_mux(void)
+{
+	configure_module_pin_mux(i2c0_pin_mux);
+}
+
+void enable_board_pin_mux(void)
+{
+#ifdef CONFIG_NAND
+	configure_module_pin_mux(nand_pin_mux);
+#endif
+	configure_module_pin_mux(adc_voltages_en);
+	configure_module_pin_mux(asp_power_en);
+	configure_module_pin_mux(switch_off_3v6_pin_mux);
+}