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-rw-r--r--drivers/gpio/Makefile19
-rw-r--r--drivers/gpio/altera_pio.c15
-rw-r--r--drivers/gpio/at91_gpio.c18
-rw-r--r--drivers/gpio/bcm2835_gpio.c13
-rw-r--r--drivers/gpio/da8xx_gpio.c15
-rw-r--r--drivers/gpio/intel_ich6_gpio.c18
-rw-r--r--drivers/gpio/kw_gpio.c18
-rw-r--r--drivers/gpio/mpc83xx_gpio.c18
-rw-r--r--drivers/gpio/mvgpio.c18
-rw-r--r--drivers/gpio/mvgpio.h18
-rw-r--r--drivers/gpio/mvmfp.c18
-rw-r--r--drivers/gpio/mxc_gpio.c18
-rw-r--r--drivers/gpio/mxs_gpio.c18
-rw-r--r--drivers/gpio/pca9698.c18
-rw-r--r--drivers/gpio/s3c2440_gpio.c18
-rw-r--r--drivers/gpio/s5p_gpio.c15
-rw-r--r--drivers/gpio/sandbox.c18
-rw-r--r--drivers/gpio/spear_gpio.c18
-rw-r--r--drivers/gpio/tca642x.c333
-rw-r--r--drivers/gpio/tegra_gpio.c18
-rw-r--r--drivers/gpio/xilinx_gpio.c18
21 files changed, 354 insertions, 326 deletions
diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile
index f77c1ec..71ddb00 100644
--- a/drivers/gpio/Makefile
+++ b/drivers/gpio/Makefile
@@ -2,23 +2,7 @@
# Copyright 2000-2008
# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
#
-# 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
+# SPDX-License-Identifier: GPL-2.0+
#
include $(TOPDIR)/config.mk
@@ -49,6 +33,7 @@ COBJS-$(CONFIG_BCM2835_GPIO) += bcm2835_gpio.o
COBJS-$(CONFIG_S3C2440_GPIO) += s3c2440_gpio.o
COBJS-$(CONFIG_XILINX_GPIO) += xilinx_gpio.o
COBJS-$(CONFIG_ADI_GPIO2) += adi_gpio2.o
+COBJS-$(CONFIG_TCA642X) += tca642x.o
COBJS := $(COBJS-y)
SRCS := $(COBJS:.o=.c)
diff --git a/drivers/gpio/altera_pio.c b/drivers/gpio/altera_pio.c
index fb03760..3ca5907 100644
--- a/drivers/gpio/altera_pio.c
+++ b/drivers/gpio/altera_pio.c
@@ -4,20 +4,7 @@
* Copyright (C) 2011 Missing Link Electronics
* Joachim Foerster <joachim@missinglinkelectronics.com>
*
- * 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
+ * SPDX-License-Identifier: GPL-2.0+
*
* To use this driver, in your board's config. header:
* #define CONFIG_ALTERA_PIO
diff --git a/drivers/gpio/at91_gpio.c b/drivers/gpio/at91_gpio.c
index ac3b322..2322914 100644
--- a/drivers/gpio/at91_gpio.c
+++ b/drivers/gpio/at91_gpio.c
@@ -5,23 +5,7 @@
*
* Copyright (C) 2005 HP Labs
*
- * 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
+ * SPDX-License-Identifier: GPL-2.0+
*/
/*
diff --git a/drivers/gpio/bcm2835_gpio.c b/drivers/gpio/bcm2835_gpio.c
index 1d50dbd..97b5137 100644
--- a/drivers/gpio/bcm2835_gpio.c
+++ b/drivers/gpio/bcm2835_gpio.c
@@ -2,18 +2,7 @@
* Copyright (C) 2012 Vikram Narayananan
* <vikram186@gmail.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.
+ * SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
diff --git a/drivers/gpio/da8xx_gpio.c b/drivers/gpio/da8xx_gpio.c
index 76648d2..fa3a394 100644
--- a/drivers/gpio/da8xx_gpio.c
+++ b/drivers/gpio/da8xx_gpio.c
@@ -4,20 +4,7 @@
* (C) Copyright 2011 Guralp Systems Ltd.
* Laurence Withers <lwithers@guralp.com>
*
- * 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
+ * SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
diff --git a/drivers/gpio/intel_ich6_gpio.c b/drivers/gpio/intel_ich6_gpio.c
index 6fed01f..7d9fac7 100644
--- a/drivers/gpio/intel_ich6_gpio.c
+++ b/drivers/gpio/intel_ich6_gpio.c
@@ -1,22 +1,6 @@
/*
* Copyright (c) 2012 The Chromium OS Authors.
- * 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
+ * SPDX-License-Identifier: GPL-2.0+
*/
/*
diff --git a/drivers/gpio/kw_gpio.c b/drivers/gpio/kw_gpio.c
index 51a826d..0af75a8 100644
--- a/drivers/gpio/kw_gpio.c
+++ b/drivers/gpio/kw_gpio.c
@@ -3,23 +3,7 @@
*
* Marvell Orion SoC GPIO handling.
*
- * 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., 51 Franklin Street, Fifth Floor, Boston,
- * MA 02110-1301 USA
+ * SPDX-License-Identifier: GPL-2.0+
*/
/*
diff --git a/drivers/gpio/mpc83xx_gpio.c b/drivers/gpio/mpc83xx_gpio.c
index e167852..92b6e0c 100644
--- a/drivers/gpio/mpc83xx_gpio.c
+++ b/drivers/gpio/mpc83xx_gpio.c
@@ -1,23 +1,7 @@
/*
* Freescale MPC83xx GPIO handling.
*
- * 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
+ * SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
diff --git a/drivers/gpio/mvgpio.c b/drivers/gpio/mvgpio.c
index c80891c..888aa07 100644
--- a/drivers/gpio/mvgpio.c
+++ b/drivers/gpio/mvgpio.c
@@ -6,23 +6,7 @@
* (C) Copyright 2010
* Marvell Semiconductor <www.marvell.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., 51 Franklin Street, Fifth Floor, Boston,
- * MA 02110-1301 USA
+ * SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
diff --git a/drivers/gpio/mvgpio.h b/drivers/gpio/mvgpio.h
index 9688797..a3f17a0 100644
--- a/drivers/gpio/mvgpio.h
+++ b/drivers/gpio/mvgpio.h
@@ -6,23 +6,7 @@
* (C) Copyright 2010
* Marvell Semiconductor <www.marvell.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., 51 Franklin Street, Fifth Floor, Boston,
- * MA 02110-1301 USA
+ * SPDX-License-Identifier: GPL-2.0+
*/
#ifndef __MVGPIO_H__
diff --git a/drivers/gpio/mvmfp.c b/drivers/gpio/mvmfp.c
index f56c037..97bbe99 100644
--- a/drivers/gpio/mvmfp.c
+++ b/drivers/gpio/mvmfp.c
@@ -3,23 +3,7 @@
* Marvell Semiconductor <www.marvell.com>
* Written-by: Prafulla Wadaskar <prafulla@marvell.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., 51 Franklin Street, Fifth Floor, Boston,
- * MA 02110-1301 USA
+ * SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
diff --git a/drivers/gpio/mxc_gpio.c b/drivers/gpio/mxc_gpio.c
index 1d820d4..6a572d5 100644
--- a/drivers/gpio/mxc_gpio.c
+++ b/drivers/gpio/mxc_gpio.c
@@ -5,23 +5,7 @@
* Copyright (C) 2011
* Stefano Babic, DENX Software Engineering, <sbabic@denx.de>
*
- * 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
+ * SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <asm/arch/imx-regs.h>
diff --git a/drivers/gpio/mxs_gpio.c b/drivers/gpio/mxs_gpio.c
index 29f19ba..d9a7a3a 100644
--- a/drivers/gpio/mxs_gpio.c
+++ b/drivers/gpio/mxs_gpio.c
@@ -4,23 +4,7 @@
* Copyright (C) 2011 Marek Vasut <marek.vasut@gmail.com>
* on behalf of DENX Software Engineering GmbH
*
- * 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
+ * SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
diff --git a/drivers/gpio/pca9698.c b/drivers/gpio/pca9698.c
index fe6d2c6..3152bf6 100644
--- a/drivers/gpio/pca9698.c
+++ b/drivers/gpio/pca9698.c
@@ -2,23 +2,7 @@
* (C) Copyright 2011
* Dirk Eibach, Guntermann & Drunck GmbH, eibach@gdsys.de
*
- * 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
+ * SPDX-License-Identifier: GPL-2.0+
*/
/*
diff --git a/drivers/gpio/s3c2440_gpio.c b/drivers/gpio/s3c2440_gpio.c
index 09b04eb..e1e2d3f 100644
--- a/drivers/gpio/s3c2440_gpio.c
+++ b/drivers/gpio/s3c2440_gpio.c
@@ -2,23 +2,7 @@
* Copyright (C) 2012
* Gabriel Huau <contact@huau-gabriel.fr>
*
- * 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
+ * SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <asm/arch/s3c2440.h>
diff --git a/drivers/gpio/s5p_gpio.c b/drivers/gpio/s5p_gpio.c
index 4efb768..7eeb96d 100644
--- a/drivers/gpio/s5p_gpio.c
+++ b/drivers/gpio/s5p_gpio.c
@@ -2,20 +2,7 @@
* (C) Copyright 2009 Samsung Electronics
* Minkyu Kang <mk7.kang@samsung.com>
*
- * 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
+ * SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
diff --git a/drivers/gpio/sandbox.c b/drivers/gpio/sandbox.c
index 19d2db0..3c6cfec 100644
--- a/drivers/gpio/sandbox.c
+++ b/drivers/gpio/sandbox.c
@@ -1,22 +1,6 @@
/*
* Copyright (c) 2011 The Chromium OS Authors.
- * 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
+ * SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
diff --git a/drivers/gpio/spear_gpio.c b/drivers/gpio/spear_gpio.c
index d3c728e..367b670 100644
--- a/drivers/gpio/spear_gpio.c
+++ b/drivers/gpio/spear_gpio.c
@@ -1,23 +1,7 @@
/*
* Copyright (C) 2012 Stefan Roese <sr@denx.de>
*
- * 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
+ * SPDX-License-Identifier: GPL-2.0+
*/
/*
diff --git a/drivers/gpio/tca642x.c b/drivers/gpio/tca642x.c
new file mode 100644
index 0000000..6386835
--- /dev/null
+++ b/drivers/gpio/tca642x.c
@@ -0,0 +1,333 @@
+/*
+ * Copyright 2013 Texas Instruments, Inc.
+ * Author: Dan Murphy <dmurphy@ti.com>
+ *
+ * Derived work from the pca953x.c driver
+ *
+ * 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 <tca642x.h>
+
+/* tca642x register address definitions */
+struct tca642x_bank_info tca642x_regs[] = {
+ { .input_reg = 0x00,
+ .output_reg = 0x04,
+ .polarity_reg = 0x08,
+ .configuration_reg = 0x0c },
+ { .input_reg = 0x01,
+ .output_reg = 0x05,
+ .polarity_reg = 0x09,
+ .configuration_reg = 0x0d },
+ { .input_reg = 0x02,
+ .output_reg = 0x06,
+ .polarity_reg = 0x0a,
+ .configuration_reg = 0x0e },
+};
+
+/*
+ * Modify masked bits in register
+ */
+static int tca642x_reg_write(uchar chip, uint8_t addr,
+ uint8_t reg_bit, uint8_t data)
+{
+ uint8_t valw;
+ int org_bus_num;
+ int ret;
+
+ org_bus_num = i2c_get_bus_num();
+ i2c_set_bus_num(CONFIG_SYS_I2C_TCA642X_BUS_NUM);
+
+ if (i2c_read(chip, addr, 1, (uint8_t *)&valw, 1)) {
+ printf("Could not read before writing\n");
+ ret = -1;
+ goto error;
+ }
+ valw &= ~reg_bit;
+ valw |= data;
+
+ ret = i2c_write(chip, addr, 1, (u8 *)&valw, 1);
+
+error:
+ i2c_set_bus_num(org_bus_num);
+ return ret;
+}
+
+static int tca642x_reg_read(uchar chip, uint8_t addr, uint8_t *data)
+{
+ uint8_t valw;
+ int org_bus_num;
+ int ret = 0;
+
+ org_bus_num = i2c_get_bus_num();
+ i2c_set_bus_num(CONFIG_SYS_I2C_TCA642X_BUS_NUM);
+ if (i2c_read(chip, addr, 1, (u8 *)&valw, 1)) {
+ ret = -1;
+ goto error;
+ }
+
+ *data = valw;
+
+error:
+ i2c_set_bus_num(org_bus_num);
+ return ret;
+}
+
+/*
+ * Set output value of IO pins in 'reg_bit' to corresponding value in 'data'
+ * 0 = low, 1 = high
+ */
+int tca642x_set_val(uchar chip, uint8_t gpio_bank,
+ uint8_t reg_bit, uint8_t data)
+{
+ uint8_t out_reg = tca642x_regs[gpio_bank].output_reg;
+
+ return tca642x_reg_write(chip, out_reg, reg_bit, data);
+}
+
+/*
+ * Set read polarity of IO pins in 'reg_bit' to corresponding value in 'data'
+ * 0 = read pin value, 1 = read inverted pin value
+ */
+int tca642x_set_pol(uchar chip, uint8_t gpio_bank,
+ uint8_t reg_bit, uint8_t data)
+{
+ uint8_t pol_reg = tca642x_regs[gpio_bank].polarity_reg;
+
+ return tca642x_reg_write(chip, pol_reg, reg_bit, data);
+}
+
+/*
+ * Set direction of IO pins in 'reg_bit' to corresponding value in 'data'
+ * 0 = output, 1 = input
+ */
+int tca642x_set_dir(uchar chip, uint8_t gpio_bank,
+ uint8_t reg_bit, uint8_t data)
+{
+ uint8_t config_reg = tca642x_regs[gpio_bank].configuration_reg;
+
+ return tca642x_reg_write(chip, config_reg, reg_bit, data);
+}
+
+/*
+ * Read current logic level of all IO pins
+ */
+int tca642x_get_val(uchar chip, uint8_t gpio_bank)
+{
+ uint8_t val;
+ uint8_t in_reg = tca642x_regs[gpio_bank].input_reg;
+
+ if (tca642x_reg_read(chip, in_reg, &val) < 0)
+ return -1;
+
+ return (int)val;
+}
+
+/*
+ * Set the inital register states for the tca642x gpio expander
+ */
+int tca642x_set_inital_state(uchar chip, struct tca642x_bank_info init_data[])
+{
+ int i, ret;
+ uint8_t config_reg;
+ uint8_t polarity_reg;
+ uint8_t output_reg;
+
+ for (i = 0; i < 3; i++) {
+ config_reg = tca642x_regs[i].configuration_reg;
+ ret = tca642x_reg_write(chip, config_reg, 0xff,
+ init_data[i].configuration_reg);
+ polarity_reg = tca642x_regs[i].polarity_reg;
+ ret = tca642x_reg_write(chip, polarity_reg, 0xff,
+ init_data[i].polarity_reg);
+ output_reg = tca642x_regs[i].output_reg;
+ ret = tca642x_reg_write(chip, output_reg, 0xff,
+ init_data[i].output_reg);
+ }
+
+ return ret;
+}
+
+#ifdef CONFIG_CMD_TCA642X
+/*
+ * Display tca642x information
+ */
+static int tca642x_info(uchar chip)
+{
+ int i, j;
+ uint8_t data;
+
+ printf("tca642x@ 0x%x (%d pins):\n", chip, 24);
+ for (i = 0; i < 3; i++) {
+ printf("Bank %i\n", i);
+ if (tca642x_reg_read(chip,
+ tca642x_regs[i].configuration_reg,
+ &data) < 0)
+ return -1;
+ printf("\tConfiguration: ");
+ for (j = 7; j >= 0; j--)
+ printf("%c", data & (1 << j) ? 'i' : 'o');
+ printf("\n");
+
+ if (tca642x_reg_read(chip,
+ tca642x_regs[i].polarity_reg, &data) < 0)
+ return -1;
+ printf("\tPolarity: ");
+ for (j = 7; j >= 0; j--)
+ printf("%c", data & (1 << j) ? '1' : '0');
+ printf("\n");
+
+ if (tca642x_reg_read(chip,
+ tca642x_regs[i].input_reg, &data) < 0)
+ return -1;
+ printf("\tInput value: ");
+ for (j = 7; j >= 0; j--)
+ printf("%c", data & (1 << j) ? '1' : '0');
+ printf("\n");
+
+ if (tca642x_reg_read(chip,
+ tca642x_regs[i].output_reg, &data) < 0)
+ return -1;
+ printf("\tOutput value: ");
+ for (j = 7; j >= 0; j--)
+ printf("%c", data & (1 << j) ? '1' : '0');
+ printf("\n");
+ }
+
+ return 0;
+}
+
+cmd_tbl_t cmd_tca642x[] = {
+ U_BOOT_CMD_MKENT(device, 3, 0, (void *)TCA642X_CMD_DEVICE, "", ""),
+ U_BOOT_CMD_MKENT(output, 4, 0, (void *)TCA642X_CMD_OUTPUT, "", ""),
+ U_BOOT_CMD_MKENT(input, 3, 0, (void *)TCA642X_CMD_INPUT, "", ""),
+ U_BOOT_CMD_MKENT(invert, 4, 0, (void *)TCA642X_CMD_INVERT, "", ""),
+ U_BOOT_CMD_MKENT(info, 2, 0, (void *)TCA642X_CMD_INFO, "", ""),
+};
+
+int do_tca642x(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ static uchar chip = CONFIG_SYS_I2C_TCA642X_ADDR;
+ int ret = CMD_RET_USAGE, val;
+ uint8_t gpio_bank = 0;
+ uint8_t bank_shift;
+ ulong ul_arg2 = 0;
+ ulong ul_arg3 = 0;
+ cmd_tbl_t *c;
+
+ c = find_cmd_tbl(argv[1], cmd_tca642x, ARRAY_SIZE(cmd_tca642x));
+
+ /* All commands but "device" require 'maxargs' arguments */
+ if (!c ||
+ !((argc == (c->maxargs)) ||
+ (((int)c->cmd == TCA642X_CMD_DEVICE) &&
+ (argc == (c->maxargs - 1))))) {
+ return CMD_RET_USAGE;
+ }
+
+ /* arg2 used as chip number or pin number */
+ if (argc > 2)
+ ul_arg2 = simple_strtoul(argv[2], NULL, 10);
+
+ /* arg3 used as pin or invert value */
+ if (argc > 3) {
+ ul_arg3 = simple_strtoul(argv[3], NULL, 10) & 0x1;
+ if (ul_arg2 <= 7) {
+ gpio_bank = 0;
+ } else if ((ul_arg2 >= 10) && (ul_arg2 <= 17)) {
+ gpio_bank = 1;
+ } else if ((ul_arg2 >= 20) && (ul_arg2 <= 27)) {
+ gpio_bank = 2;
+ } else {
+ printf("Requested pin is not available\n");
+ ret = CMD_RET_FAILURE;
+ goto error;
+ }
+ }
+
+ switch ((int)c->cmd) {
+ case TCA642X_CMD_INFO:
+ ret = tca642x_info(chip);
+ if (ret)
+ ret = CMD_RET_FAILURE;
+ break;
+
+ case TCA642X_CMD_DEVICE:
+ if (argc == 3)
+ chip = (uint8_t)ul_arg2;
+ printf("Current device address: 0x%x\n", chip);
+ ret = CMD_RET_SUCCESS;
+ break;
+
+ case TCA642X_CMD_INPUT:
+ bank_shift = ul_arg2 - (gpio_bank * 10);
+ ret = tca642x_set_dir(chip, gpio_bank, (1 << bank_shift),
+ TCA642X_DIR_IN << bank_shift);
+ val = (tca642x_get_val(chip, gpio_bank) &
+ (1 << bank_shift)) != 0;
+
+ if (ret)
+ ret = CMD_RET_FAILURE;
+ else
+ printf("chip 0x%02x, pin 0x%lx = %d\n", chip,
+ ul_arg2, val);
+ break;
+
+ case TCA642X_CMD_OUTPUT:
+ bank_shift = ul_arg2 - (gpio_bank * 10);
+ ret = tca642x_set_dir(chip, gpio_bank, (1 << bank_shift),
+ (TCA642X_DIR_OUT << bank_shift));
+ if (!ret)
+ ret = tca642x_set_val(chip,
+ gpio_bank, (1 << bank_shift),
+ (ul_arg3 << bank_shift));
+ if (ret)
+ ret = CMD_RET_FAILURE;
+ break;
+
+ case TCA642X_CMD_INVERT:
+ bank_shift = ul_arg2 - (gpio_bank * 10);
+ ret = tca642x_set_pol(chip, gpio_bank, (1 << bank_shift),
+ (ul_arg3 << bank_shift));
+ if (ret)
+ ret = CMD_RET_FAILURE;
+ break;
+ }
+error:
+ if (ret == CMD_RET_FAILURE)
+ eprintf("Error talking to chip at 0x%x\n", chip);
+
+ return ret;
+}
+
+U_BOOT_CMD(
+ tca642x, 5, 1, do_tca642x,
+ "tca642x gpio access",
+ "device [dev]\n"
+ " - show or set current device address\n"
+ "tca642x info\n"
+ " - display info for current chip\n"
+ "tca642x output pin 0|1\n"
+ " - set pin as output and drive low or high\n"
+ "tca642x invert pin 0|1\n"
+ " - disable/enable polarity inversion for reads\n"
+ "tca642x input pin\n"
+ " - set pin as input and read value"
+);
+
+#endif /* CONFIG_CMD_TCA642X */
diff --git a/drivers/gpio/tegra_gpio.c b/drivers/gpio/tegra_gpio.c
index 2417968..82b30d5 100644
--- a/drivers/gpio/tegra_gpio.c
+++ b/drivers/gpio/tegra_gpio.c
@@ -3,23 +3,7 @@
* (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
+ * SPDX-License-Identifier: GPL-2.0+
*/
/*
diff --git a/drivers/gpio/xilinx_gpio.c b/drivers/gpio/xilinx_gpio.c
index 37fb0c5..949fd96 100644
--- a/drivers/gpio/xilinx_gpio.c
+++ b/drivers/gpio/xilinx_gpio.c
@@ -1,23 +1,7 @@
/*
* Copyright (c) 2013 Xilinx, Michal Simek
*
- * 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
+ * SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>