mpc83xx: Add a GPIO driver for the MPC83XX family

new file mode 100644
index 0000000..4319d07
@@ -0,0 +1,37 @@
+/*
+ * 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
+ */
+
+#ifndef _MPC83XX_GPIO_H_
+#define _MPC83XX_GPIO_H_
+
+/*
+ * The MCP83xx's 1-2 GPIO controllers each with 32 bits.
+ */
+#if defined(CONFIG_MPC8313) || defined(CONFIG_MPC8308) || defined(CONFIG_MPC8315)
+	#define MPC83XX_GPIO_CTRLRS 1
+#elif defined(CONFIG_MPC834x) || defined(CONFIG_MPC837x)
+	#define MPC83XX_GPIO_CTRLRS 2
+#else
+	#define MPC83XX_GPIO_CTRLRS 0
+#endif
+
+#define MAX_NUM_GPIOS		(32 * MPC83XX_GPIO_CTRLRS)
+
+void gpio_init_f(void);
+void gpio_init_r(void);
+
+#endif	/* MPC83XX_GPIO_H_ */

new file mode 100644
index 0000000..eb071d1
@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2011, NVIDIA Corp. All rights reserved.
+ * 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
+ */
+
+#ifndef _GPIO_H_
+#define _GPIO_H_
+
+#include <asm/arch/gpio.h>
+/*
+ * Generic GPIO API
+ */
+
+int gpio_request(int gp, const char *label);
+void gpio_free(int gp);
+void gpio_toggle_value(int gp);
+int gpio_direction_input(int gp);
+int gpio_direction_output(int gp, int value);
+int gpio_get_value(int gp);
+void gpio_set_value(int gp, int value);
+
+#endif	/* _GPIO_H_ */

index 08f873d..353b9f4 100644
@@ -31,6 +31,9 @@
 #include <vsc7385.h>
 #include <ns16550.h>
 #include <nand.h>
+#if defined(CONFIG_MPC83XX_GPIO) && !defined(CONFIG_NAND_SPL)
+#include <asm/gpio.h>
+#endif
 
 DECLARE_GLOBAL_DATA_PTR;
 

@@ -42,6 +45,9 @@ int board_early_init_f(void)
 	if (im->pmc.pmccr1 & PMCCR1_POWER_OFF)
 		gd->flags |= GD_FLG_SILENT;
 #endif
+#if defined(CONFIG_MPC83XX_GPIO) && !defined(CONFIG_NAND_SPL)
+	gpio_init_f();
+#endif
 
 	return 0;
 }

@@ -140,6 +146,9 @@ void board_init_f(ulong bootflag)
 
 void board_init_r(gd_t *gd, ulong dest_addr)
 {
+#if defined(CONFIG_MPC83XX_GPIO) && !defined(CONFIG_NAND_SPL)
+	gpio_init_r();
+#endif
 	nand_boot();
 }
 

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index 0000000..462a7bf
@@ -0,0 +1,37 @@
+/*
+ * 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
+ */
+
+#ifndef _MPC83XX_GPIO_H_
+#define _MPC83XX_GPIO_H_
+
+/*
+ * The MCP83xx's 1-2 GPIO controllers each with 32 bits.
+ */
+#if defined(CONFIG_MPC8313) || defined(CONFIG_MPC8308) || defined(CONFIG_MPC8315)
+	#define MPC83XX_GPIO_CTRLRS 1
+#elif defined(CONFIG_MPC834x) || defined(CONFIG_MPC837x)
+	#define MPC83XX_GPIO_CTRLRS 2
+#else
+	#define MPC83XX_GPIO_CTRLRS 0
+#endif
+
+#define MAX_NUM_GPIOS		(32 * MPC83XX_GPIO_CTRLRS)
+
+void mpc83xx_gpio_init_f(void);
+void mpc83xx_gpio_init_r(void);
+
+#endif	/* MPC83XX_GPIO_H_ */

new file mode 100644
index 0000000..eb071d1
@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2011, NVIDIA Corp. All rights reserved.
+ * 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
+ */
+
+#ifndef _GPIO_H_
+#define _GPIO_H_
+
+#include <asm/arch/gpio.h>
+/*
+ * Generic GPIO API
+ */
+
+int gpio_request(int gp, const char *label);
+void gpio_free(int gp);
+void gpio_toggle_value(int gp);
+int gpio_direction_input(int gp);
+int gpio_direction_output(int gp, int value);
+int gpio_get_value(int gp);
+void gpio_set_value(int gp, int value);
+
+#endif	/* _GPIO_H_ */

198 lines not on this page · raw message

index 08f873d..f81a19c 100644
@@ -31,6 +31,9 @@
 #include <vsc7385.h>
 #include <ns16550.h>
 #include <nand.h>
+#if defined(CONFIG_MPC83XX_GPIO) && !defined(CONFIG_NAND_SPL)
+#include <asm/gpio.h>
+#endif
 
 DECLARE_GLOBAL_DATA_PTR;
 

@@ -42,10 +45,20 @@ int board_early_init_f(void)
 	if (im->pmc.pmccr1 & PMCCR1_POWER_OFF)
 		gd->flags |= GD_FLG_SILENT;
 #endif
+#if defined(CONFIG_MPC83XX_GPIO) && !defined(CONFIG_NAND_SPL)
+	mpc83xx_gpio_init_f();
+#endif
 
 	return 0;
 }
 
+int board_early_init_r(void)
+{
+#if defined(CONFIG_MPC83XX_GPIO) && !defined(CONFIG_NAND_SPL)
+	mpc83xx_gpio_init_r();
+#endif
+}
+
 int checkboard(void)
 {
 	puts("Board: Freescale MPC8313ERDB\n");

index 92c54d0..bf17e41 100644
@@ -82,7 +82,8 @@
 
 #define CONFIG_SYS_CLK_FREQ	CONFIG_83XX_CLKIN
 
-#define CONFIG_BOARD_EARLY_INIT_F		/* call board_pre_init */
+#define CONFIG_BOARD_EARLY_INIT_F		/* call board_early_init_f */
+#define CONFIG_BOARD_EARLY_INIT_R		/* call board_early_init_r */
 
 #define CONFIG_SYS_IMMR		0xE0000000
 

@@ -322,6 +323,9 @@
 #define CONFIG_OF_BOARD_SETUP	1
 #define CONFIG_OF_STDOUT_VIA_ALIAS	1
 
+#define CONFIG_MPC83XX_GPIO 1
+#define CONFIG_CMD_GPIO 1
+
 /*
  * Serial Port
  */

@@ -535,7 +539,7 @@
 
 /* System IO Config */
 #define CONFIG_SYS_SICRH	(SICRH_TSOBI1 | SICRH_TSOBI2)	/* RGMII */
-#define CONFIG_SYS_SICRL	SICRL_USBDR_10			/* Enable Internal USB Phy  */
+#define CONFIG_SYS_SICRL	(SICRL_USBDR_10 | SICRL_LBC)	/* Enable Internal USB Phy and GPIO on LCD Connector */
 
 #define CONFIG_SYS_HID0_INIT	0x000000000
 #define CONFIG_SYS_HID0_FINAL	(HID0_ENABLE_MACHINE_CHECK | \

index 92c54d0..9bf38df 100644
@@ -322,6 +322,9 @@
 #define CONFIG_OF_BOARD_SETUP	1
 #define CONFIG_OF_STDOUT_VIA_ALIAS	1
 
+#define CONFIG_MPC83XX_GPIO 1
+#define CONFIG_CMD_GPIO 1
+
 /*
  * Serial Port
  */

@@ -535,7 +538,7 @@
 
 /* System IO Config */
 #define CONFIG_SYS_SICRH	(SICRH_TSOBI1 | SICRH_TSOBI2)	/* RGMII */
-#define CONFIG_SYS_SICRL	SICRL_USBDR_10			/* Enable Internal USB Phy  */
+#define CONFIG_SYS_SICRL	(SICRL_USBDR_10 | SICRL_LBC)	/* Enable Internal USB Phy and GPIO on LCD Connector */
 
 #define CONFIG_SYS_HID0_INIT	0x000000000
 #define CONFIG_SYS_HID0_FINAL	(HID0_ENABLE_MACHINE_CHECK | \

index eb071d1..306ab4c 100644
@@ -1,38 +1 @@
-/*
- * Copyright (c) 2011, NVIDIA Corp. All rights reserved.
- * 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
- */
-
-#ifndef _GPIO_H_
-#define _GPIO_H_
-
-#include <asm/arch/gpio.h>
-/*
- * Generic GPIO API
- */
-
-int gpio_request(int gp, const char *label);
-void gpio_free(int gp);
-void gpio_toggle_value(int gp);
-int gpio_direction_input(int gp);
-int gpio_direction_output(int gp, int value);
-int gpio_get_value(int gp);
-void gpio_set_value(int gp, int value);
-
-#endif	/* _GPIO_H_ */
+#include <asm-generic/gpio.h>

new file mode 100644
index 0000000..306ab4c
@@ -0,0 +1 @@
+#include <asm-generic/gpio.h>

new file mode 100644
index 0000000..eb071d1
@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2011, NVIDIA Corp. All rights reserved.
+ * 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
+ */
+
+#ifndef _GPIO_H_
+#define _GPIO_H_
+
+#include <asm/arch/gpio.h>
+/*
+ * Generic GPIO API
+ */
+
+int gpio_request(int gp, const char *label);
+void gpio_free(int gp);
+void gpio_toggle_value(int gp);
+int gpio_direction_input(int gp);
+int gpio_direction_output(int gp, int value);
+int gpio_get_value(int gp);
+void gpio_set_value(int gp, int value);
+
+#endif	/* _GPIO_H_ */

index eb071d1..d49ad08 100644
@@ -1,38 +1,2 @@
-/*
- * Copyright (c) 2011, NVIDIA Corp. All rights reserved.
- * 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
- */
-
-#ifndef _GPIO_H_
-#define _GPIO_H_
-
 #include <asm/arch/gpio.h>
-/*
- * Generic GPIO API
- */
-
-int gpio_request(int gp, const char *label);
-void gpio_free(int gp);
-void gpio_toggle_value(int gp);
-int gpio_direction_input(int gp);
-int gpio_direction_output(int gp, int value);
-int gpio_get_value(int gp);
-void gpio_set_value(int gp, int value);
-
-#endif	/* _GPIO_H_ */
+#include <asm-generic/gpio.h>

new file mode 100644
index 0000000..d49ad08
@@ -0,0 +1,2 @@
+#include <asm/arch/gpio.h>
+#include <asm-generic/gpio.h>

new file mode 100644
index 0000000..57542ad
@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) 2011, NVIDIA Corp. All rights reserved.
+ * 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
+ */
+
+#ifndef _GPIO_H_
+#define _GPIO_H_
+
+/*
+ * Generic GPIO API
+ */
+
+int gpio_request(int gp, const char *label);
+void gpio_free(int gp);
+void gpio_toggle_value(int gp);
+int gpio_direction_input(int gp);
+int gpio_direction_output(int gp, int value);
+int gpio_get_value(int gp);
+void gpio_set_value(int gp, int value);
+
+#endif	/* _GPIO_H_ */

index eb071d1..d49ad08 100644
@@ -1,38 +1,2 @@
-/*
- * Copyright (c) 2011, NVIDIA Corp. All rights reserved.
- * 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
- */
-
-#ifndef _GPIO_H_
-#define _GPIO_H_
-
 #include <asm/arch/gpio.h>
-/*
- * Generic GPIO API
- */
-
-int gpio_request(int gp, const char *label);
-void gpio_free(int gp);
-void gpio_toggle_value(int gp);
-int gpio_direction_input(int gp);
-int gpio_direction_output(int gp, int value);
-int gpio_get_value(int gp);
-void gpio_set_value(int gp, int value);
-
-#endif	/* _GPIO_H_ */
+#include <asm-generic/gpio.h>

new file mode 100644
index 0000000..d49ad08
@@ -0,0 +1,2 @@
+#include <asm/arch/gpio.h>
+#include <asm-generic/gpio.h>

new file mode 100644
index 0000000..57542ad
@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) 2011, NVIDIA Corp. All rights reserved.
+ * 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
+ */
+
+#ifndef _GPIO_H_
+#define _GPIO_H_
+
+/*
+ * Generic GPIO API
+ */
+
+int gpio_request(int gp, const char *label);
+void gpio_free(int gp);
+void gpio_toggle_value(int gp);
+int gpio_direction_input(int gp);
+int gpio_direction_output(int gp, int value);
+int gpio_get_value(int gp);
+void gpio_set_value(int gp, int value);
+
+#endif	/* _GPIO_H_ */

index eb071d1..d49ad08 100644
@@ -1,38 +1,2 @@
-/*
- * Copyright (c) 2011, NVIDIA Corp. All rights reserved.
- * 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
- */
-
-#ifndef _GPIO_H_
-#define _GPIO_H_
-
 #include <asm/arch/gpio.h>
-/*
- * Generic GPIO API
- */
-
-int gpio_request(int gp, const char *label);
-void gpio_free(int gp);
-void gpio_toggle_value(int gp);
-int gpio_direction_input(int gp);
-int gpio_direction_output(int gp, int value);
-int gpio_get_value(int gp);
-void gpio_set_value(int gp, int value);
-
-#endif	/* _GPIO_H_ */
+#include <asm-generic/gpio.h>

new file mode 100644
index 0000000..d49ad08
@@ -0,0 +1,2 @@
+#include <asm/arch/gpio.h>
+#include <asm-generic/gpio.h>

new file mode 100644
index 0000000..57542ad
@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) 2011, NVIDIA Corp. All rights reserved.
+ * 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
+ */
+
+#ifndef _GPIO_H_
+#define _GPIO_H_
+
+/*
+ * Generic GPIO API
+ */
+
+int gpio_request(int gp, const char *label);
+void gpio_free(int gp);
+void gpio_toggle_value(int gp);
+int gpio_direction_input(int gp);
+int gpio_direction_output(int gp, int value);
+int gpio_get_value(int gp);
+void gpio_set_value(int gp, int value);
+
+#endif	/* _GPIO_H_ */

index a1ebb28..65d2708 100644
@@ -1,5 +1,6 @@
 /*
  * Copyright (c) 2011 The Chromium OS Authors.
+ * Copyright (c) 2011, NVIDIA Corp. All rights reserved.
  * See file CREDITS for list of people who contributed to this
  * project.
  *

@@ -19,6 +20,9 @@
  * MA 02111-1307 USA
  */
 
+#ifndef _ASM_GENERIC_GPIO_H_
+#define _ASM_GENERIC_GPIO_H_
+
 /*
  * Generic GPIO API for U-Boot
  *

@@ -38,37 +42,56 @@
  */
 
 /**
+ * Request ownership of a GPIO.
+ *
+ * @param gpio	GPIO number
+ * @param label	Name given to the GPIO
+ * @return 0 if ok, -1 on error
+ */
+int gpio_request(unsigned gpio, const char *label);
+
+/**
+ * Stop using the GPIO.
+ *
+ * @param gpio	GPIO number
+ * @return 0 if ok, -1 on error
+ */
+int gpio_free(unsigned gpio);
+
+/**
  * Make a GPIO an input.
  *
- * @param gp	GPIO number
+ * @param gpio	GPIO number
  * @return 0 if ok, -1 on error
  */
-int gpio_direction_input(int gp);
+int gpio_direction_input(unsigned gpio);
 
 /**
  * Make a GPIO an output, and set its value.
  *
- * @param gp	GPIO number
+ * @param gpio	GPIO number
  * @param value	GPIO value (0 for low or 1 for high)
  * @return 0 if ok, -1 on error
  */
-int gpio_direction_output(int gp, int value);
+int gpio_direction_output(unsigned gpio, int value);
 
 /**
  * Get a GPIO's value. This will work whether the GPIO is an input
  * or an output.
  *
- * @param gp	GPIO number
+ * @param gpio	GPIO number
  * @return 0 if low, 1 if high, -1 on error
  */
-int gpio_get_value(int gp);
+int gpio_get_value(unsigned gpio);
 
 /**
  * Set an output GPIO's value. The GPIO must already be an output of
  * this function may have no effect.
  *
- * @param gp	GPIO number
+ * @param gpio	GPIO number
  * @param value	GPIO value (0 for low or 1 for high)
  * @return 0 if ok, -1 on error
  */
-int gpio_set_value(int gp, int value);
+int gpio_set_value(unsigned gpio, int value);
+
+#endif	/* _ASM_GENERIC_GPIO_H_ */

index a1ebb28..c19e16c 100644
@@ -1,5 +1,6 @@
 /*
  * Copyright (c) 2011 The Chromium OS Authors.
+ * Copyright (c) 2011, NVIDIA Corp. All rights reserved.
  * See file CREDITS for list of people who contributed to this
  * project.
  *

@@ -19,6 +20,9 @@
  * MA 02111-1307 USA
  */
 
+#ifndef _ASM_GENERIC_GPIO_H_
+#define _ASM_GENERIC_GPIO_H_
+
 /*
  * Generic GPIO API for U-Boot
  *

@@ -38,37 +42,56 @@
  */
 
 /**
+ * Request ownership of a GPIO.
+ *
+ * @param gpio	GPIO number
+ * @param label	Name given to the GPIO
+ * @return 0 if ok, -1 on error
+ */
+int gpio_request(unsigned gpio, const char *label);
+
+/**
+ * Stop using the GPIO.  This function should not alter pin configuration.
+ *
+ * @param gpio	GPIO number
+ * @return 0 if ok, -1 on error
+ */
+int gpio_free(unsigned gpio);
+
+/**
  * Make a GPIO an input.
  *
- * @param gp	GPIO number
+ * @param gpio	GPIO number
  * @return 0 if ok, -1 on error
  */
-int gpio_direction_input(int gp);
+int gpio_direction_input(unsigned gpio);
 
 /**
  * Make a GPIO an output, and set its value.
  *
- * @param gp	GPIO number
+ * @param gpio	GPIO number
  * @param value	GPIO value (0 for low or 1 for high)
  * @return 0 if ok, -1 on error
  */
-int gpio_direction_output(int gp, int value);
+int gpio_direction_output(unsigned gpio, int value);
 
 /**
  * Get a GPIO's value. This will work whether the GPIO is an input
  * or an output.
  *
- * @param gp	GPIO number
+ * @param gpio	GPIO number
  * @return 0 if low, 1 if high, -1 on error
  */
-int gpio_get_value(int gp);
+int gpio_get_value(unsigned gpio);
 
 /**
- * Set an output GPIO's value. The GPIO must already be an output of
+ * Set an output GPIO's value. The GPIO must already be an output or
  * this function may have no effect.
  *
- * @param gp	GPIO number
+ * @param gpio	GPIO number
  * @param value	GPIO value (0 for low or 1 for high)
  * @return 0 if ok, -1 on error
  */
-int gpio_set_value(int gp, int value);
+int gpio_set_value(unsigned gpio, int value);
+
+#endif	/* _ASM_GENERIC_GPIO_H_ */

index 75a02da..fc89f2a 100644
@@ -36,7 +36,7 @@
  * published by the Free Software Foundation.
  */
 #include <common.h>
-#include <asm/arch/gpio.h>
+#include <asm/gpio.h>
 #include <asm/io.h>
 #include <asm/errno.h>
 

@@ -56,17 +56,17 @@ static inline int get_gpio_index(int gpio)
 static inline int gpio_valid(int gpio)
 {
 	if (gpio < 0)
-		return -EINVAL;
+		return -1;
 	if (gpio < 192)
 		return 0;
-	return -EINVAL;
+	return -1;
 }
 
 static int check_gpio(int gpio)
 {
 	if (gpio_valid(gpio) < 0) {
 		printf("ERROR : check_gpio: invalid GPIO %d\n", gpio);
-		return -EINVAL;
+		return -1;
 	}
 	return 0;
 }

@@ -106,7 +106,7 @@ static int _get_gpio_direction(const struct gpio_bank *bank, int gpio)
 		reg += OMAP_GPIO_OE;
 		break;
 	default:
-		return -EINVAL;
+		return -1;
 	}
 
 	v = __raw_readl(reg);

@@ -142,27 +142,29 @@ static void _set_gpio_dataout(const struct gpio_bank *bank, int gpio,
 /**
  * Set value of the specified gpio
  */
-void gpio_set_value(int gpio, int value)
+int gpio_set_value(unsigned gpio, int value)
 {
 	const struct gpio_bank *bank;
 
 	if (check_gpio(gpio) < 0)
-		return;
+		return -1;
 	bank = get_gpio_bank(gpio);
 	_set_gpio_dataout(bank, get_gpio_index(gpio), value);
+
+	return 0;
 }
 
 /**
  * Get value of the specified gpio
  */
-int gpio_get_value(int gpio)
+int gpio_get_value(unsigned gpio)
 {
 	const struct gpio_bank *bank;
 	void *reg;
 	int input;
 
 	if (check_gpio(gpio) < 0)
-		return -EINVAL;
+		return -1;
 	bank = get_gpio_bank(gpio);
 	reg = bank->base;
 	switch (bank->method) {

@@ -176,11 +178,11 @@ int gpio_get_value(int gpio)
 			reg += OMAP_GPIO_DATAOUT;
 			break;
 		default:
-			return -EINVAL;
+			return -1;
 		}
 		break;
 	default:
-		return -EINVAL;
+		return -1;
 	}
 	return (__raw_readl(reg)
 			& (1 << get_gpio_index(gpio))) != 0;

@@ -194,7 +196,7 @@ int gpio_direction_input(unsigned gpio)
 	const struct gpio_bank *bank;
 
 	if (check_gpio(gpio) < 0)
-		return -EINVAL;
+		return -1;
 
 	bank = get_gpio_bank(gpio);
 	_set_gpio_direction(bank, get_gpio_index(gpio), 1);

@@ -210,7 +212,7 @@ int gpio_direction_output(unsigned gpio, int value)
 	const struct gpio_bank *bank;
 
 	if (check_gpio(gpio) < 0)
-		return -EINVAL;
+		return -1;
 
 	bank = get_gpio_bank(gpio);
 	_set_gpio_dataout(bank, get_gpio_index(gpio), value);

@@ -224,10 +226,10 @@ int gpio_direction_output(unsigned gpio, int value)
  *
  * NOTE: Argument 'label' is unused.
  */
-int gpio_request(int gpio, const char *label)
+int gpio_request(unsigned gpio, const char *label)
 {
 	if (check_gpio(gpio) < 0)
-		return -EINVAL;
+		return -1;
 
 	return 0;
 }

@@ -235,6 +237,7 @@ int gpio_request(int gpio, const char *label)
 /**
  * Reset and free the gpio after using it.
  */
-void gpio_free(unsigned gpio)
+int gpio_free(unsigned gpio)
 {
+	return 0;
 }

index eb071d1..d49ad08 100644
@@ -1,38 +1,2 @@
-/*
- * Copyright (c) 2011, NVIDIA Corp. All rights reserved.
- * 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
- */
-
-#ifndef _GPIO_H_
-#define _GPIO_H_
-
 #include <asm/arch/gpio.h>
-/*
- * Generic GPIO API
- */
-
-int gpio_request(int gp, const char *label);
-void gpio_free(int gp);
-void gpio_toggle_value(int gp);
-int gpio_direction_input(int gp);
-int gpio_direction_output(int gp, int value);
-int gpio_get_value(int gp);
-void gpio_set_value(int gp, int value);
-
-#endif	/* _GPIO_H_ */
+#include <asm-generic/gpio.h>

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new file mode 100644
index 0000000..036f51e
@@ -0,0 +1,38 @@
+/*
+ * 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
+ */
+
+#ifndef _MPC83XX_GPIO_H_
+#define _MPC83XX_GPIO_H_
+
+/*
+ * The MCP83xx's 1-2 GPIO controllers each with 32 bits.
+ */
+#if defined(CONFIG_MPC8313) || defined(CONFIG_MPC8308) || \
+	defined(CONFIG_MPC8315)
+#define MPC83XX_GPIO_CTRLRS 1
+#elif defined(CONFIG_MPC834x) || defined(CONFIG_MPC837x)
+#define MPC83XX_GPIO_CTRLRS 2
+#else
+#define MPC83XX_GPIO_CTRLRS 0
+#endif
+
+#define MAX_NUM_GPIOS (32 * MPC83XX_GPIO_CTRLRS)
+
+void mpc83xx_gpio_init_f(void);
+void mpc83xx_gpio_init_r(void);
+
+#endif	/* MPC83XX_GPIO_H_ */

new file mode 100644
index 0000000..d49ad08
@@ -0,0 +1,2 @@
+#include <asm/arch/gpio.h>
+#include <asm-generic/gpio.h>

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index 08f873d..730ec4e 100644
@@ -31,6 +31,9 @@
 #include <vsc7385.h>
 #include <ns16550.h>
 #include <nand.h>
+#if defined(CONFIG_MPC83XX_GPIO) && !defined(CONFIG_NAND_SPL)
+#include <asm/gpio.h>
+#endif
 
 DECLARE_GLOBAL_DATA_PTR;
 

@@ -42,6 +45,18 @@ int board_early_init_f(void)
 	if (im->pmc.pmccr1 & PMCCR1_POWER_OFF)
 		gd->flags |= GD_FLG_SILENT;
 #endif
+#if defined(CONFIG_MPC83XX_GPIO) && !defined(CONFIG_NAND_SPL)
+	mpc83xx_gpio_init_f();
+#endif
+
+	return 0;
+}
+
+int board_early_init_r(void)
+{
+#if defined(CONFIG_MPC83XX_GPIO) && !defined(CONFIG_NAND_SPL)
+	mpc83xx_gpio_init_r();
+#endif
 
 	return 0;
 }

index 31503af..39bdcf8 100644
@@ -82,7 +82,8 @@
 
 #define CONFIG_SYS_CLK_FREQ	CONFIG_83XX_CLKIN
 
-#define CONFIG_BOARD_EARLY_INIT_F		/* call board_pre_init */
+#define CONFIG_BOARD_EARLY_INIT_F		/* call board_early_init_f */
+#define CONFIG_BOARD_EARLY_INIT_R		/* call board_early_init_r */
 
 #define CONFIG_SYS_IMMR		0xE0000000
 

@@ -363,6 +364,9 @@
 #define CONFIG_OF_BOARD_SETUP	1
 #define CONFIG_OF_STDOUT_VIA_ALIAS	1
 
+#define CONFIG_MPC83XX_GPIO 1
+#define CONFIG_CMD_GPIO 1
+
 /*
  * Serial Port
  */

@@ -581,7 +585,8 @@
 
 /* System IO Config */
 #define CONFIG_SYS_SICRH	(SICRH_TSOBI1 | SICRH_TSOBI2)	/* RGMII */
-#define CONFIG_SYS_SICRL	SICRL_USBDR_10	/* Enable Internal USB Phy  */
+			/* Enable Internal USB Phy and GPIO on LCD Connector */
+#define CONFIG_SYS_SICRL	(SICRL_USBDR_10 | SICRL_LBC)
 
 #define CONFIG_SYS_HID0_INIT	0x000000000
 #define CONFIG_SYS_HID0_FINAL	(HID0_ENABLE_MACHINE_CHECK | \

index 75a02da..fc62acc 100644
@@ -36,7 +36,7 @@
  * published by the Free Software Foundation.
  */
 #include <common.h>
-#include <asm/arch/gpio.h>
+#include <asm/gpio.h>
 #include <asm/io.h>
 #include <asm/errno.h>
 

@@ -142,20 +142,22 @@ static void _set_gpio_dataout(const struct gpio_bank *bank, int gpio,
 /**
  * Set value of the specified gpio
  */
-void gpio_set_value(int gpio, int value)
+int gpio_set_value(unsigned gpio, int value)
 {
 	const struct gpio_bank *bank;
 
 	if (check_gpio(gpio) < 0)
-		return;
+		return -1;
 	bank = get_gpio_bank(gpio);
 	_set_gpio_dataout(bank, get_gpio_index(gpio), value);
+
+	return 0;
 }
 
 /**
  * Get value of the specified gpio
  */
-int gpio_get_value(int gpio)
+int gpio_get_value(unsigned gpio)
 {
 	const struct gpio_bank *bank;
 	void *reg;

@@ -176,11 +178,11 @@ int gpio_get_value(int gpio)
 			reg += OMAP_GPIO_DATAOUT;
 			break;
 		default:
-			return -EINVAL;
+			return -1;
 		}
 		break;
 	default:
-		return -EINVAL;
+		return -1;
 	}
 	return (__raw_readl(reg)
 			& (1 << get_gpio_index(gpio))) != 0;

@@ -194,7 +196,7 @@ int gpio_direction_input(unsigned gpio)
 	const struct gpio_bank *bank;
 
 	if (check_gpio(gpio) < 0)
-		return -EINVAL;
+		return -1;
 
 	bank = get_gpio_bank(gpio);
 	_set_gpio_direction(bank, get_gpio_index(gpio), 1);

@@ -210,7 +212,7 @@ int gpio_direction_output(unsigned gpio, int value)
 	const struct gpio_bank *bank;
 
 	if (check_gpio(gpio) < 0)
-		return -EINVAL;
+		return -1;
 
 	bank = get_gpio_bank(gpio);
 	_set_gpio_dataout(bank, get_gpio_index(gpio), value);

@@ -224,7 +226,7 @@ int gpio_direction_output(unsigned gpio, int value)
  *
  * NOTE: Argument 'label' is unused.
  */
-int gpio_request(int gpio, const char *label)
+int gpio_request(unsigned gpio, const char *label)
 {
 	if (check_gpio(gpio) < 0)
 		return -EINVAL;

@@ -235,6 +237,7 @@ int gpio_request(int gpio, const char *label)
 /**
  * Reset and free the gpio after using it.
  */
-void gpio_free(unsigned gpio)
+int gpio_free(unsigned gpio)
 {
+	return 0;
 }

index eb071d1..d49ad08 100644
@@ -1,38 +1,2 @@
-/*
- * Copyright (c) 2011, NVIDIA Corp. All rights reserved.
- * 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
- */
-
-#ifndef _GPIO_H_
-#define _GPIO_H_
-
 #include <asm/arch/gpio.h>
-/*
- * Generic GPIO API
- */
-
-int gpio_request(int gp, const char *label);
-void gpio_free(int gp);
-void gpio_toggle_value(int gp);
-int gpio_direction_input(int gp);
-int gpio_direction_output(int gp, int value);
-int gpio_get_value(int gp);
-void gpio_set_value(int gp, int value);
-
-#endif	/* _GPIO_H_ */
+#include <asm-generic/gpio.h>

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new file mode 100644
index 0000000..6b2d9ab
@@ -0,0 +1,38 @@
+/*
+ * 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
+ */
+
+#ifndef _MPC83XX_GPIO_H_
+#define _MPC83XX_GPIO_H_
+
+/*
+ * The MCP83xx's 1-2 GPIO controllers each with 32 bits.
+ */
+#if defined(CONFIG_MPC8313) || defined(CONFIG_MPC8308) || \
+				defined(CONFIG_MPC8315)
+	#define MPC83XX_GPIO_CTRLRS 1
+#elif defined(CONFIG_MPC834x) || defined(CONFIG_MPC837x)
+	#define MPC83XX_GPIO_CTRLRS 2
+#else
+	#define MPC83XX_GPIO_CTRLRS 0
+#endif
+
+#define MAX_NUM_GPIOS		(32 * MPC83XX_GPIO_CTRLRS)
+
+void mpc83xx_gpio_init_f(void);
+void mpc83xx_gpio_init_r(void);
+
+#endif	/* MPC83XX_GPIO_H_ */

new file mode 100644
index 0000000..d49ad08
@@ -0,0 +1,2 @@
+#include <asm/arch/gpio.h>
+#include <asm-generic/gpio.h>

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index 08f873d..730ec4e 100644
@@ -31,6 +31,9 @@
 #include <vsc7385.h>
 #include <ns16550.h>
 #include <nand.h>
+#if defined(CONFIG_MPC83XX_GPIO) && !defined(CONFIG_NAND_SPL)
+#include <asm/gpio.h>
+#endif
 
 DECLARE_GLOBAL_DATA_PTR;
 

@@ -42,6 +45,18 @@ int board_early_init_f(void)
 	if (im->pmc.pmccr1 & PMCCR1_POWER_OFF)
 		gd->flags |= GD_FLG_SILENT;
 #endif
+#if defined(CONFIG_MPC83XX_GPIO) && !defined(CONFIG_NAND_SPL)
+	mpc83xx_gpio_init_f();
+#endif
+
+	return 0;
+}
+
+int board_early_init_r(void)
+{
+#if defined(CONFIG_MPC83XX_GPIO) && !defined(CONFIG_NAND_SPL)
+	mpc83xx_gpio_init_r();
+#endif
 
 	return 0;
 }

index 31503af..39bdcf8 100644
@@ -82,7 +82,8 @@
 
 #define CONFIG_SYS_CLK_FREQ	CONFIG_83XX_CLKIN
 
-#define CONFIG_BOARD_EARLY_INIT_F		/* call board_pre_init */
+#define CONFIG_BOARD_EARLY_INIT_F		/* call board_early_init_f */
+#define CONFIG_BOARD_EARLY_INIT_R		/* call board_early_init_r */
 
 #define CONFIG_SYS_IMMR		0xE0000000
 

@@ -363,6 +364,9 @@
 #define CONFIG_OF_BOARD_SETUP	1
 #define CONFIG_OF_STDOUT_VIA_ALIAS	1
 
+#define CONFIG_MPC83XX_GPIO 1
+#define CONFIG_CMD_GPIO 1
+
 /*
  * Serial Port
  */

@@ -581,7 +585,8 @@
 
 /* System IO Config */
 #define CONFIG_SYS_SICRH	(SICRH_TSOBI1 | SICRH_TSOBI2)	/* RGMII */
-#define CONFIG_SYS_SICRL	SICRL_USBDR_10	/* Enable Internal USB Phy  */
+			/* Enable Internal USB Phy and GPIO on LCD Connector */
+#define CONFIG_SYS_SICRL	(SICRL_USBDR_10 | SICRL_LBC)
 
 #define CONFIG_SYS_HID0_INIT	0x000000000
 #define CONFIG_SYS_HID0_FINAL	(HID0_ENABLE_MACHINE_CHECK | \

index 7a15614..31a213b 100644
@@ -181,26 +181,26 @@ static const struct pinmux_config gpio_pinmux[] = {
 	{ pinmux(18), 8, 2 },
 };
 
-int gpio_request(int gp, const char *label)
+int gpio_request(unsigned gpio, const char *label)
 {
-	if (gp >= MAX_NUM_GPIOS)
+	if (gpio >= MAX_NUM_GPIOS)
 		return -1;
 
-	if (gpio_registry[gp].is_registered)
+	if (gpio_registry[gpio].is_registered)
 		return -1;
 
-	gpio_registry[gp].is_registered = 1;
-	strncpy(gpio_registry[gp].name, label, GPIO_NAME_SIZE);
-	gpio_registry[gp].name[GPIO_NAME_SIZE - 1] = 0;
+	gpio_registry[gpio].is_registered = 1;
+	strncpy(gpio_registry[gpio].name, label, GPIO_NAME_SIZE);
+	gpio_registry[gpio].name[GPIO_NAME_SIZE - 1] = 0;
 
-	davinci_configure_pin_mux(&gpio_pinmux[gp], 1);
+	davinci_configure_pin_mux(&gpio_pinmux[gpio], 1);
 
 	return 0;
 }
 
-void gpio_free(int gp)
+void gpio_free(unsigned gpio)
 {
-	gpio_registry[gp].is_registered = 0;
+	gpio_registry[gpio].is_registered = 0;
 }
 
 void gpio_toggle_value(int gp)

@@ -211,60 +211,60 @@ void gpio_toggle_value(int gp)
 	gpio_set_value(gp, !gpio_get_value(gp));
 }
 
-int gpio_direction_input(int gp)
+int gpio_direction_input(unsigned gpio)
 {
 	struct davinci_gpio *bank;
 
-	bank = GPIO_BANK(gp);
-	setbits_le32(&bank->dir, 1U << GPIO_BIT(gp));
+	bank = GPIO_BANK(gpio);
+	setbits_le32(&bank->dir, 1U << GPIO_BIT(gpio));
 	return 0;
 }
 
-int gpio_direction_output(int gp, int value)
+int gpio_direction_output(unsigned gpio, int value)
 {
 	struct davinci_gpio *bank;
 
-	bank = GPIO_BANK(gp);
-	clrbits_le32(&bank->dir, 1U << GPIO_BIT(gp));
-	gpio_set_value(gp, value);
+	bank = GPIO_BANK(gpio);
+	clrbits_le32(&bank->dir, 1U << GPIO_BIT(gpio));
+	gpio_set_value(gpio, value);
 	return 0;
 }
 
-int gpio_get_value(int gp)
+int gpio_get_value(unsigned gpio)
 {
 	struct davinci_gpio *bank;
 	unsigned int ip;
 
-	bank = GPIO_BANK(gp);
-	ip = in_le32(&bank->in_data) & (1U << GPIO_BIT(gp));
+	bank = GPIO_BANK(gpio);
+	ip = in_le32(&bank->in_data) & (1U << GPIO_BIT(gpio));
 	return ip ? 1 : 0;
 }
 
-void gpio_set_value(int gp, int value)
+void gpio_set_value(unsigned gpio, int value)
 {
 	struct davinci_gpio *bank;
 
-	bank = GPIO_BANK(gp);
+	bank = GPIO_BANK(gpio);
 
 	if (value)
-		bank->set_data = 1U << GPIO_BIT(gp);
+		bank->set_data = 1U << GPIO_BIT(gpio);
 	else
-		bank->clr_data = 1U << GPIO_BIT(gp);
+		bank->clr_data = 1U << GPIO_BIT(gpio);
 }
 
 void gpio_info(void)
 {
-	int gp, dir, val;
+	unsigned gpio, dir, val;
 	struct davinci_gpio *bank;
 
-	for (gp = 0; gp < MAX_NUM_GPIOS; ++gp) {
-		bank = GPIO_BANK(gp);
-		dir = in_le32(&bank->dir) & (1U << GPIO_BIT(gp));
-		val = gpio_get_value(gp);
+	for (gpio = 0; gpio < MAX_NUM_GPIOS; ++gpio) {
+		bank = GPIO_BANK(gpio);
+		dir = in_le32(&bank->dir) & (1U << GPIO_BIT(gpio));
+		val = gpio_get_value(gpio);
 
 		printf("% 4d: %s: %d [%c] %s\n",
-			gp, dir ? " in" : "out", val,
-			gpio_registry[gp].is_registered ? 'x' : ' ',
-			gpio_registry[gp].name);
+			gpio, dir ? " in" : "out", val,
+			gpio_registry[gpio].is_registered ? 'x' : ' ',
+			gpio_registry[gpio].name);
 	}
 }

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index 57542ad..55a030d 100644
@@ -26,12 +26,11 @@
  * Generic GPIO API
  */
 
-int gpio_request(int gp, const char *label);
-void gpio_free(int gp);
-void gpio_toggle_value(int gp);
-int gpio_direction_input(int gp);
-int gpio_direction_output(int gp, int value);
-int gpio_get_value(int gp);
-void gpio_set_value(int gp, int value);
+int gpio_request(unsigned gpio, const char *label);
+void gpio_free(unsigned gpio);
+int gpio_direction_input(unsigned gpio);
+int gpio_get_value(unsigned gpio);
+int gpio_direction_output(unsigned gpio, int value);
+void gpio_set_value(unsigned gpio, int value);
 
 #endif	/* _GPIO_H_ */

new file mode 100644
index 0000000..6b2d9ab
@@ -0,0 +1,38 @@
+/*
+ * 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
+ */
+
+#ifndef _MPC83XX_GPIO_H_
+#define _MPC83XX_GPIO_H_
+
+/*
+ * The MCP83xx's 1-2 GPIO controllers each with 32 bits.
+ */
+#if defined(CONFIG_MPC8313) || defined(CONFIG_MPC8308) || \
+				defined(CONFIG_MPC8315)
+	#define MPC83XX_GPIO_CTRLRS 1
+#elif defined(CONFIG_MPC834x) || defined(CONFIG_MPC837x)
+	#define MPC83XX_GPIO_CTRLRS 2
+#else
+	#define MPC83XX_GPIO_CTRLRS 0
+#endif
+
+#define MAX_NUM_GPIOS		(32 * MPC83XX_GPIO_CTRLRS)
+
+void mpc83xx_gpio_init_f(void);
+void mpc83xx_gpio_init_r(void);
+
+#endif	/* MPC83XX_GPIO_H_ */

195 lines not on this page · raw message

index 08f873d..730ec4e 100644
@@ -31,6 +31,9 @@
 #include <vsc7385.h>
 #include <ns16550.h>
 #include <nand.h>
+#if defined(CONFIG_MPC83XX_GPIO) && !defined(CONFIG_NAND_SPL)
+#include <asm/gpio.h>
+#endif
 
 DECLARE_GLOBAL_DATA_PTR;
 

@@ -42,6 +45,18 @@ int board_early_init_f(void)
 	if (im->pmc.pmccr1 & PMCCR1_POWER_OFF)
 		gd->flags |= GD_FLG_SILENT;
 #endif
+#if defined(CONFIG_MPC83XX_GPIO) && !defined(CONFIG_NAND_SPL)
+	mpc83xx_gpio_init_f();
+#endif
+
+	return 0;
+}
+
+int board_early_init_r(void)
+{
+#if defined(CONFIG_MPC83XX_GPIO) && !defined(CONFIG_NAND_SPL)
+	mpc83xx_gpio_init_r();
+#endif
 
 	return 0;
 }

index 92c54d0..1243b9f 100644
@@ -82,7 +82,8 @@
 
 #define CONFIG_SYS_CLK_FREQ	CONFIG_83XX_CLKIN
 
-#define CONFIG_BOARD_EARLY_INIT_F		/* call board_pre_init */
+#define CONFIG_BOARD_EARLY_INIT_F		/* call board_early_init_f */
+#define CONFIG_BOARD_EARLY_INIT_R		/* call board_early_init_r */
 
 #define CONFIG_SYS_IMMR		0xE0000000
 

@@ -322,6 +323,9 @@
 #define CONFIG_OF_BOARD_SETUP	1
 #define CONFIG_OF_STDOUT_VIA_ALIAS	1
 
+#define CONFIG_MPC83XX_GPIO 1
+#define CONFIG_CMD_GPIO 1
+
 /*
  * Serial Port
  */

@@ -535,7 +539,8 @@
 
 /* System IO Config */
 #define CONFIG_SYS_SICRH	(SICRH_TSOBI1 | SICRH_TSOBI2)	/* RGMII */
-#define CONFIG_SYS_SICRL	SICRL_USBDR_10			/* Enable Internal USB Phy  */
+			/* Enable Internal USB Phy and GPIO on LCD Connector */
+#define CONFIG_SYS_SICRL	(SICRL_USBDR_10 | SICRL_LBC)
 
 #define CONFIG_SYS_HID0_INIT	0x000000000
 #define CONFIG_SYS_HID0_FINAL	(HID0_ENABLE_MACHINE_CHECK | \

index 0308223..2994c92 100644
@@ -185,97 +185,88 @@ static const struct pinmux_config gpio_pinmux[] = {
 
 
 
-int gpio_request(int gp, const char *label)
+int gpio_request(unsigned gpio, const char *label)
 {
-	if (gp >= MAX_NUM_GPIOS)
+	if (gpio >= MAX_NUM_GPIOS)
 		return -1;
 
-	if (gpio_registry[gp].is_registered)
+	if (gpio_registry[gpio].is_registered)
 		return -1;
 
-	gpio_registry[gp].is_registered = 1;
-	strncpy(gpio_registry[gp].name, label, GPIO_NAME_SIZE);
-	gpio_registry[gp].name[GPIO_NAME_SIZE - 1] = 0;
+	gpio_registry[gpio].is_registered = 1;
+	strncpy(gpio_registry[gpio].name, label, GPIO_NAME_SIZE);
+	gpio_registry[gpio].name[GPIO_NAME_SIZE - 1] = 0;
 
-	davinci_configure_pin_mux(&gpio_pinmux[gp], 1);
+	davinci_configure_pin_mux(&gpio_pinmux[gpio], 1);
 
 	return 0;
 }
 
 
-void gpio_free(int gp)
+void gpio_free(unsigned gpio)
 {
-	gpio_registry[gp].is_registered = 0;
+	gpio_registry[gpio].is_registered = 0;
 }
 
 
-void gpio_toggle_value(int gp)
+int gpio_direction_input(unsigned gpio)
 {
 	struct davinci_gpio *bank;
 
-	bank = GPIO_BANK(gp);
-	gpio_set_value(gp, !gpio_get_value(gp));
-}
-
-
-int gpio_direction_input(int gp)
-{
-	struct davinci_gpio *bank;
-
-	bank = GPIO_BANK(gp);
-	setbits_le32(&bank->dir, 1U << GPIO_BIT(gp));
+	bank = GPIO_BANK(gpio);
+	setbits_le32(&bank->dir, 1U << GPIO_BIT(gpio));
 	return 0;
 }
 
 
-int gpio_direction_output(int gp, int value)
+int gpio_direction_output(unsigned gpio, int value)
 {
 	struct davinci_gpio *bank;
 
-	bank = GPIO_BANK(gp);
-	clrbits_le32(&bank->dir, 1U << GPIO_BIT(gp));
-	gpio_set_value(gp, value);
+	bank = GPIO_BANK(gpio);
+	clrbits_le32(&bank->dir, 1U << GPIO_BIT(gpio));
+	gpio_set_value(gpio, value);
 	return 0;
 }
 
 
-int gpio_get_value(int gp)
+int gpio_get_value(unsigned gpio)
 {
 	struct davinci_gpio *bank;
 	unsigned int ip;
 
-	bank = GPIO_BANK(gp);
-	ip = in_le32(&bank->in_data) & (1U << GPIO_BIT(gp));
+	bank = GPIO_BANK(gpio);
+	ip = in_le32(&bank->in_data) & (1U << GPIO_BIT(gpio));
 	return ip ? 1 : 0;
 }
 
 
-void gpio_set_value(int gp, int value)
+void gpio_set_value(unsigned gpio, int value)
 {
 	struct davinci_gpio *bank;
 
-	bank = GPIO_BANK(gp);
+	bank = GPIO_BANK(gpio);
 
 	if (value)
-		bank->set_data = 1U << GPIO_BIT(gp);
+		bank->set_data = 1U << GPIO_BIT(gpio);
 	else
-		bank->clr_data = 1U << GPIO_BIT(gp);
+		bank->clr_data = 1U << GPIO_BIT(gpio);
 }
 
 
 void gpio_info(void)
 {
-	int gp, dir, val;
+	unsigned gpio, dir, val;
 	struct davinci_gpio *bank;
 
-	for (gp = 0; gp < MAX_NUM_GPIOS; ++gp) {
-		bank = GPIO_BANK(gp);
-		dir = in_le32(&bank->dir) & (1U << GPIO_BIT(gp));
-		val = gpio_get_value(gp);
+	for (gpio = 0; gpio < MAX_NUM_GPIOS; ++gpio) {
+		bank = GPIO_BANK(gpio);
+		dir = in_le32(&bank->dir) & (1U << GPIO_BIT(gpio));
+		val = gpio_get_value(gpio);
 
 		printf("% 4d: %s: %d [%c] %s\n",
-			gp, dir ? " in" : "out", val,
-			gpio_registry[gp].is_registered ? 'x' : ' ',
-			gpio_registry[gp].name);
+			gpio, dir ? " in" : "out", val,
+			gpio_registry[gpio].is_registered ? 'x' : ' ',
+			gpio_registry[gpio].name);
 	}
 }

269 lines not on this page · raw message

index 57542ad..55a030d 100644
@@ -26,12 +26,11 @@
  * Generic GPIO API
  */
 
-int gpio_request(int gp, const char *label);
-void gpio_free(int gp);
-void gpio_toggle_value(int gp);
-int gpio_direction_input(int gp);
-int gpio_direction_output(int gp, int value);
-int gpio_get_value(int gp);
-void gpio_set_value(int gp, int value);
+int gpio_request(unsigned gpio, const char *label);
+void gpio_free(unsigned gpio);
+int gpio_direction_input(unsigned gpio);
+int gpio_get_value(unsigned gpio);
+int gpio_direction_output(unsigned gpio, int value);
+void gpio_set_value(unsigned gpio, int value);
 
 #endif	/* _GPIO_H_ */

new file mode 100644
index 0000000..462a7bf
@@ -0,0 +1,37 @@
+/*
+ * 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
+ */
+
+#ifndef _MPC83XX_GPIO_H_
+#define _MPC83XX_GPIO_H_
+
+/*
+ * The MCP83xx's 1-2 GPIO controllers each with 32 bits.
+ */
+#if defined(CONFIG_MPC8313) || defined(CONFIG_MPC8308) || defined(CONFIG_MPC8315)
+	#define MPC83XX_GPIO_CTRLRS 1
+#elif defined(CONFIG_MPC834x) || defined(CONFIG_MPC837x)
+	#define MPC83XX_GPIO_CTRLRS 2
+#else
+	#define MPC83XX_GPIO_CTRLRS 0
+#endif
+
+#define MAX_NUM_GPIOS		(32 * MPC83XX_GPIO_CTRLRS)
+
+void mpc83xx_gpio_init_f(void);
+void mpc83xx_gpio_init_r(void);
+
+#endif	/* MPC83XX_GPIO_H_ */

194 lines not on this page · raw message

index 08f873d..730ec4e 100644
@@ -31,6 +31,9 @@
 #include <vsc7385.h>
 #include <ns16550.h>
 #include <nand.h>
+#if defined(CONFIG_MPC83XX_GPIO) && !defined(CONFIG_NAND_SPL)
+#include <asm/gpio.h>
+#endif
 
 DECLARE_GLOBAL_DATA_PTR;
 

@@ -42,6 +45,18 @@ int board_early_init_f(void)
 	if (im->pmc.pmccr1 & PMCCR1_POWER_OFF)
 		gd->flags |= GD_FLG_SILENT;
 #endif
+#if defined(CONFIG_MPC83XX_GPIO) && !defined(CONFIG_NAND_SPL)
+	mpc83xx_gpio_init_f();
+#endif
+
+	return 0;
+}
+
+int board_early_init_r(void)
+{
+#if defined(CONFIG_MPC83XX_GPIO) && !defined(CONFIG_NAND_SPL)
+	mpc83xx_gpio_init_r();
+#endif
 
 	return 0;
 }

index 92c54d0..bf17e41 100644
@@ -82,7 +82,8 @@
 
 #define CONFIG_SYS_CLK_FREQ	CONFIG_83XX_CLKIN
 
-#define CONFIG_BOARD_EARLY_INIT_F		/* call board_pre_init */
+#define CONFIG_BOARD_EARLY_INIT_F		/* call board_early_init_f */
+#define CONFIG_BOARD_EARLY_INIT_R		/* call board_early_init_r */
 
 #define CONFIG_SYS_IMMR		0xE0000000
 

@@ -322,6 +323,9 @@
 #define CONFIG_OF_BOARD_SETUP	1
 #define CONFIG_OF_STDOUT_VIA_ALIAS	1
 
+#define CONFIG_MPC83XX_GPIO 1
+#define CONFIG_CMD_GPIO 1
+
 /*
  * Serial Port
  */

@@ -535,7 +539,7 @@
 
 /* System IO Config */
 #define CONFIG_SYS_SICRH	(SICRH_TSOBI1 | SICRH_TSOBI2)	/* RGMII */
-#define CONFIG_SYS_SICRL	SICRL_USBDR_10			/* Enable Internal USB Phy  */
+#define CONFIG_SYS_SICRL	(SICRL_USBDR_10 | SICRL_LBC)	/* Enable Internal USB Phy and GPIO on LCD Connector */
 
 #define CONFIG_SYS_HID0_INIT	0x000000000
 #define CONFIG_SYS_HID0_FINAL	(HID0_ENABLE_MACHINE_CHECK | \

new file mode 100644
index 0000000..462a7bf
@@ -0,0 +1,37 @@
+/*
+ * 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
+ */
+
+#ifndef _MPC83XX_GPIO_H_
+#define _MPC83XX_GPIO_H_
+
+/*
+ * The MCP83xx's 1-2 GPIO controllers each with 32 bits.
+ */
+#if defined(CONFIG_MPC8313) || defined(CONFIG_MPC8308) || defined(CONFIG_MPC8315)
+	#define MPC83XX_GPIO_CTRLRS 1
+#elif defined(CONFIG_MPC834x) || defined(CONFIG_MPC837x)
+	#define MPC83XX_GPIO_CTRLRS 2
+#else
+	#define MPC83XX_GPIO_CTRLRS 0
+#endif
+
+#define MAX_NUM_GPIOS		(32 * MPC83XX_GPIO_CTRLRS)
+
+void mpc83xx_gpio_init_f(void);
+void mpc83xx_gpio_init_r(void);
+
+#endif	/* MPC83XX_GPIO_H_ */

199 lines not on this page · raw message

index 08f873d..730ec4e 100644
@@ -31,6 +31,9 @@
 #include <vsc7385.h>
 #include <ns16550.h>
 #include <nand.h>
+#if defined(CONFIG_MPC83XX_GPIO) && !defined(CONFIG_NAND_SPL)
+#include <asm/gpio.h>
+#endif
 
 DECLARE_GLOBAL_DATA_PTR;
 

@@ -42,6 +45,18 @@ int board_early_init_f(void)
 	if (im->pmc.pmccr1 & PMCCR1_POWER_OFF)
 		gd->flags |= GD_FLG_SILENT;
 #endif
+#if defined(CONFIG_MPC83XX_GPIO) && !defined(CONFIG_NAND_SPL)
+	mpc83xx_gpio_init_f();
+#endif
+
+	return 0;
+}
+
+int board_early_init_r(void)
+{
+#if defined(CONFIG_MPC83XX_GPIO) && !defined(CONFIG_NAND_SPL)
+	mpc83xx_gpio_init_r();
+#endif
 
 	return 0;
 }

index 92c54d0..bf17e41 100644
@@ -82,7 +82,8 @@
 
 #define CONFIG_SYS_CLK_FREQ	CONFIG_83XX_CLKIN
 
-#define CONFIG_BOARD_EARLY_INIT_F		/* call board_pre_init */
+#define CONFIG_BOARD_EARLY_INIT_F		/* call board_early_init_f */
+#define CONFIG_BOARD_EARLY_INIT_R		/* call board_early_init_r */
 
 #define CONFIG_SYS_IMMR		0xE0000000
 

@@ -322,6 +323,9 @@
 #define CONFIG_OF_BOARD_SETUP	1
 #define CONFIG_OF_STDOUT_VIA_ALIAS	1
 
+#define CONFIG_MPC83XX_GPIO 1
+#define CONFIG_CMD_GPIO 1
+
 /*
  * Serial Port
  */

@@ -535,7 +539,7 @@
 
 /* System IO Config */
 #define CONFIG_SYS_SICRH	(SICRH_TSOBI1 | SICRH_TSOBI2)	/* RGMII */
-#define CONFIG_SYS_SICRL	SICRL_USBDR_10			/* Enable Internal USB Phy  */
+#define CONFIG_SYS_SICRL	(SICRL_USBDR_10 | SICRL_LBC)	/* Enable Internal USB Phy and GPIO on LCD Connector */
 
 #define CONFIG_SYS_HID0_INIT	0x000000000
 #define CONFIG_SYS_HID0_FINAL	(HID0_ENABLE_MACHINE_CHECK | \