From a03ce7d9ef05e145ef706f99e68d5ffacf0ad325 Mon Sep 17 00:00:00 2001
From: "sfking@fdwdc.com" <sfking@fdwdc.com>
Date: Fri, 19 Jun 2009 18:11:04 -0700
Subject: generic GPIO support for the Freescale Coldfire 523x.
Add support for the 523x.
Signed-off-by: Steven King <sfking@fdwdc.com>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
---
arch/m68knommu/platform/523x/Makefile | 2 +-
arch/m68knommu/platform/523x/gpio.c | 283 ++++++++++++++++++++++++++++++++++
2 files changed, 284 insertions(+), 1 deletion(-)
create mode 100644 arch/m68knommu/platform/523x/gpio.c
(limited to 'arch/m68knommu/platform/523x')
diff --git a/arch/m68knommu/platform/523x/Makefile b/arch/m68knommu/platform/523x/Makefile
index 5694d593..b8f9b45 100644
--- a/arch/m68knommu/platform/523x/Makefile
+++ b/arch/m68knommu/platform/523x/Makefile
@@ -14,4 +14,4 @@
asflags-$(CONFIG_FULLDEBUG) := -DDEBUGGER_COMPATIBLE_CACHE=1
-obj-y := config.o
+obj-y := config.o gpio.o
diff --git a/arch/m68knommu/platform/523x/gpio.c b/arch/m68knommu/platform/523x/gpio.c
new file mode 100644
index 0000000..f02840d
--- /dev/null
+++ b/arch/m68knommu/platform/523x/gpio.c
@@ -0,0 +1,283 @@
+/*
+ * Coldfire generic GPIO support
+ *
+ * (C) Copyright 2009, Steven King <sfking@fdwdc.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; version 2 of the License.
+ *
+ * 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.
+*/
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+
+#include <asm/coldfire.h>
+#include <asm/mcfsim.h>
+#include <asm/mcfgpio.h>
+
+static struct mcf_gpio_chip mcf_gpio_chips[] = {
+ {
+ .gpio_chip = {
+ .label = "PIRQ",
+ .request = mcf_gpio_request,
+ .free = mcf_gpio_free,
+ .direction_input = mcf_gpio_direction_input,
+ .direction_output = mcf_gpio_direction_output,
+ .get = mcf_gpio_get_value,
+ .set = mcf_gpio_set_value,
+ .ngpio = 8,
+ },
+ .pddr = MCFEPORT_EPDDR,
+ .podr = MCFEPORT_EPDR,
+ .ppdr = MCFEPORT_EPPDR,
+ },
+ {
+ .gpio_chip = {
+ .label = "ADDR",
+ .request = mcf_gpio_request,
+ .free = mcf_gpio_free,
+ .direction_input = mcf_gpio_direction_input,
+ .direction_output = mcf_gpio_direction_output,
+ .get = mcf_gpio_get_value,
+ .set = mcf_gpio_set_value_fast,
+ .base = 13,
+ .ngpio = 3,
+ },
+ .pddr = MCFGPIO_PDDR_ADDR,
+ .podr = MCFGPIO_PODR_ADDR,
+ .ppdr = MCFGPIO_PPDSDR_ADDR,
+ .setr = MCFGPIO_PPDSDR_ADDR,
+ .clrr = MCFGPIO_PCLRR_ADDR,
+ },
+ {
+ .gpio_chip = {
+ .label = "DATAH",
+ .request = mcf_gpio_request,
+ .free = mcf_gpio_free,
+ .direction_input = mcf_gpio_direction_input,
+ .direction_output = mcf_gpio_direction_output,
+ .get = mcf_gpio_get_value,
+ .set = mcf_gpio_set_value_fast,
+ .base = 16,
+ .ngpio = 8,
+ },
+ .pddr = MCFGPIO_PDDR_DATAH,
+ .podr = MCFGPIO_PODR_DATAH,
+ .ppdr = MCFGPIO_PPDSDR_DATAH,
+ .setr = MCFGPIO_PPDSDR_DATAH,
+ .clrr = MCFGPIO_PCLRR_DATAH,
+ },
+ {
+ .gpio_chip = {
+ .label = "DATAL",
+ .request = mcf_gpio_request,
+ .free = mcf_gpio_free,
+ .direction_input = mcf_gpio_direction_input,
+ .direction_output = mcf_gpio_direction_output,
+ .get = mcf_gpio_get_value,
+ .set = mcf_gpio_set_value_fast,
+ .base = 24,
+ .ngpio = 8,
+ },
+ .pddr = MCFGPIO_PDDR_DATAL,
+ .podr = MCFGPIO_PODR_DATAL,
+ .ppdr = MCFGPIO_PPDSDR_DATAL,
+ .setr = MCFGPIO_PPDSDR_DATAL,
+ .clrr = MCFGPIO_PCLRR_DATAL,
+ },
+ {
+ .gpio_chip = {
+ .label = "BUSCTL",
+ .request = mcf_gpio_request,
+ .free = mcf_gpio_free,
+ .direction_input = mcf_gpio_direction_input,
+ .direction_output = mcf_gpio_direction_output,
+ .get = mcf_gpio_get_value,
+ .set = mcf_gpio_set_value_fast,
+ .base = 32,
+ .ngpio = 8,
+ },
+ .pddr = MCFGPIO_PDDR_BUSCTL,
+ .podr = MCFGPIO_PODR_BUSCTL,
+ .ppdr = MCFGPIO_PPDSDR_BUSCTL,
+ .setr = MCFGPIO_PPDSDR_BUSCTL,
+ .clrr = MCFGPIO_PCLRR_BUSCTL,
+ },
+ {
+ .gpio_chip = {
+ .label = "BS",
+ .request = mcf_gpio_request,
+ .free = mcf_gpio_free,
+ .direction_input = mcf_gpio_direction_input,
+ .direction_output = mcf_gpio_direction_output,
+ .get = mcf_gpio_get_value,
+ .set = mcf_gpio_set_value_fast,
+ .base = 40,
+ .ngpio = 4,
+ },
+ .pddr = MCFGPIO_PDDR_BS,
+ .podr = MCFGPIO_PODR_BS,
+ .ppdr = MCFGPIO_PPDSDR_BS,
+ .setr = MCFGPIO_PPDSDR_BS,
+ .clrr = MCFGPIO_PCLRR_BS,
+ },
+ {
+ .gpio_chip = {
+ .label = "CS",
+ .request = mcf_gpio_request,
+ .free = mcf_gpio_free,
+ .direction_input = mcf_gpio_direction_input,
+ .direction_output = mcf_gpio_direction_output,
+ .get = mcf_gpio_get_value,
+ .set = mcf_gpio_set_value_fast,
+ .base = 49,
+ .ngpio = 7,
+ },
+ .pddr = MCFGPIO_PDDR_CS,
+ .podr = MCFGPIO_PODR_CS,
+ .ppdr = MCFGPIO_PPDSDR_CS,
+ .setr = MCFGPIO_PPDSDR_CS,
+ .clrr = MCFGPIO_PCLRR_CS,
+ },
+ {
+ .gpio_chip = {
+ .label = "SDRAM",
+ .request = mcf_gpio_request,
+ .free = mcf_gpio_free,
+ .direction_input = mcf_gpio_direction_input,
+ .direction_output = mcf_gpio_direction_output,
+ .get = mcf_gpio_get_value,
+ .set = mcf_gpio_set_value_fast,
+ .base = 56,
+ .ngpio = 6,
+ },
+ .pddr = MCFGPIO_PDDR_SDRAM,
+ .podr = MCFGPIO_PODR_SDRAM,
+ .ppdr = MCFGPIO_PPDSDR_SDRAM,
+ .setr = MCFGPIO_PPDSDR_SDRAM,
+ .clrr = MCFGPIO_PCLRR_SDRAM,
+ },
+ {
+ .gpio_chip = {
+ .label = "FECI2C",
+ .request = mcf_gpio_request,
+ .free = mcf_gpio_free,
+ .direction_input = mcf_gpio_direction_input,
+ .direction_output = mcf_gpio_direction_output,
+ .get = mcf_gpio_get_value,
+ .set = mcf_gpio_set_value_fast,
+ .base = 64,
+ .ngpio = 4,
+ },
+ .pddr = MCFGPIO_PDDR_FECI2C,
+ .podr = MCFGPIO_PODR_FECI2C,
+ .ppdr = MCFGPIO_PPDSDR_FECI2C,
+ .setr = MCFGPIO_PPDSDR_FECI2C,
+ .clrr = MCFGPIO_PCLRR_FECI2C,
+ },
+ {
+ .gpio_chip = {
+ .label = "UARTH",
+ .request = mcf_gpio_request,
+ .free = mcf_gpio_free,
+ .direction_input = mcf_gpio_direction_input,
+ .direction_output = mcf_gpio_direction_output,
+ .get = mcf_gpio_get_value,
+ .set = mcf_gpio_set_value_fast,
+ .base = 72,
+ .ngpio = 2,
+ },
+ .pddr = MCFGPIO_PDDR_UARTH,
+ .podr = MCFGPIO_PODR_UARTH,
+ .ppdr = MCFGPIO_PPDSDR_UARTH,
+ .setr = MCFGPIO_PPDSDR_UARTH,
+ .clrr = MCFGPIO_PCLRR_UARTH,
+ },
+ {
+ .gpio_chip = {
+ .label = "UARTL",
+ .request = mcf_gpio_request,
+ .free = mcf_gpio_free,
+ .direction_input = mcf_gpio_direction_input,
+ .direction_output = mcf_gpio_direction_output,
+ .get = mcf_gpio_get_value,
+ .set = mcf_gpio_set_value_fast,
+ .base = 80,
+ .ngpio = 8,
+ },
+ .pddr = MCFGPIO_PDDR_UARTL,
+ .podr = MCFGPIO_PODR_UARTL,
+ .ppdr = MCFGPIO_PPDSDR_UARTL,
+ .setr = MCFGPIO_PPDSDR_UARTL,
+ .clrr = MCFGPIO_PCLRR_UARTL,
+ },
+ {
+ .gpio_chip = {
+ .label = "QSPI",
+ .request = mcf_gpio_request,
+ .free = mcf_gpio_free,
+ .direction_input = mcf_gpio_direction_input,
+ .direction_output = mcf_gpio_direction_output,
+ .get = mcf_gpio_get_value,
+ .set = mcf_gpio_set_value_fast,
+ .base = 88,
+ .ngpio = 5,
+ },
+ .pddr = MCFGPIO_PDDR_QSPI,
+ .podr = MCFGPIO_PODR_QSPI,
+ .ppdr = MCFGPIO_PPDSDR_QSPI,
+ .setr = MCFGPIO_PPDSDR_QSPI,
+ .clrr = MCFGPIO_PCLRR_QSPI,
+ },
+ {
+ .gpio_chip = {
+ .label = "TIMER",
+ .request = mcf_gpio_request,
+ .free = mcf_gpio_free,
+ .direction_input = mcf_gpio_direction_input,
+ .direction_output = mcf_gpio_direction_output,
+ .get = mcf_gpio_get_value,
+ .set = mcf_gpio_set_value_fast,
+ .base = 96,
+ .ngpio = 4,
+ },
+ .pddr = MCFGPIO_PDDR_TIMER,
+ .podr = MCFGPIO_PODR_TIMER,
+ .ppdr = MCFGPIO_PPDSDR_TIMER,
+ .setr = MCFGPIO_PPDSDR_TIMER,
+ .clrr = MCFGPIO_PCLRR_TIMER,
+ },
+ {
+ .gpio_chip = {
+ .label = "ETPU",
+ .request = mcf_gpio_request,
+ .free = mcf_gpio_free,
+ .direction_input = mcf_gpio_direction_input,
+ .direction_output = mcf_gpio_direction_output,
+ .get = mcf_gpio_get_value,
+ .set = mcf_gpio_set_value_fast,
+ .base = 104,
+ .ngpio = 3,
+ },
+ .pddr = MCFGPIO_PDDR_ETPU,
+ .podr = MCFGPIO_PODR_ETPU,
+ .ppdr = MCFGPIO_PPDSDR_ETPU,
+ .setr = MCFGPIO_PPDSDR_ETPU,
+ .clrr = MCFGPIO_PCLRR_ETPU,
+ },
+};
+
+static int __init mcf_gpio_init(void)
+{
+ unsigned i = 0;
+ while (i < ARRAY_SIZE(mcf_gpio_chips))
+ (void)gpiochip_add((struct gpio_chip *)&mcf_gpio_chips[i++]);
+ return 0;
+}
+
+core_initcall(mcf_gpio_init);
--
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