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Message-Id: <1245460272-4329-6-git-send-email-sfking@fdwdc.com>
Date: Fri, 19 Jun 2009 18:11:04 -0700
From: sfking@...dc.com
To: linux-kernel@...r.kernel.org
Cc: uclinux-dev@...inux.org, linux-m68k@...r.kernel.org,
gerg@...pgear.com, Steven King <sfking@...dc.com>
Subject: [PATCH 05/13] generic GPIO support for the Freescale Coldfire 523x.
Add support for the 523x.
Signed-off-by: Steven King <sfking@...dc.com>
---
arch/m68k/include/asm/m523xsim.h | 77 +++++++++
arch/m68knommu/platform/523x/Makefile | 2 +-
arch/m68knommu/platform/523x/gpio.c | 283 +++++++++++++++++++++++++++++++++
3 files changed, 361 insertions(+), 1 deletions(-)
create mode 100644 arch/m68knommu/platform/523x/gpio.c
diff --git a/arch/m68k/include/asm/m523xsim.h b/arch/m68k/include/asm/m523xsim.h
index bf39731..d06dd22 100644
--- a/arch/m68k/include/asm/m523xsim.h
+++ b/arch/m68k/include/asm/m523xsim.h
@@ -41,5 +41,82 @@
#define MCFSIM_DACR1 0x50 /* SDRAM base address 1 */
#define MCFSIM_DMR1 0x54 /* SDRAM address mask 1 */
+#define MCFGPIO_PODR_ADDR (MCF_IPSBAR + 0x100000)
+#define MCFGPIO_PODR_DATAH (MCF_IPSBAR + 0x100001)
+#define MCFGPIO_PODR_DATAL (MCF_IPSBAR + 0x100002)
+#define MCFGPIO_PODR_BUSCTL (MCF_IPSBAR + 0x100003)
+#define MCFGPIO_PODR_BS (MCF_IPSBAR + 0x100004)
+#define MCFGPIO_PODR_CS (MCF_IPSBAR + 0x100005)
+#define MCFGPIO_PODR_SDRAM (MCF_IPSBAR + 0x100006)
+#define MCFGPIO_PODR_FECI2C (MCF_IPSBAR + 0x100007)
+#define MCFGPIO_PODR_UARTH (MCF_IPSBAR + 0x100008)
+#define MCFGPIO_PODR_UARTL (MCF_IPSBAR + 0x100009)
+#define MCFGPIO_PODR_QSPI (MCF_IPSBAR + 0x10000A)
+#define MCFGPIO_PODR_TIMER (MCF_IPSBAR + 0x10000B)
+#define MCFGPIO_PODR_ETPU (MCF_IPSBAR + 0x10000C)
+
+#define MCFGPIO_PDDR_ADDR (MCF_IPSBAR + 0x100010)
+#define MCFGPIO_PDDR_DATAH (MCF_IPSBAR + 0x100011)
+#define MCFGPIO_PDDR_DATAL (MCF_IPSBAR + 0x100012)
+#define MCFGPIO_PDDR_BUSCTL (MCF_IPSBAR + 0x100013)
+#define MCFGPIO_PDDR_BS (MCF_IPSBAR + 0x100014)
+#define MCFGPIO_PDDR_CS (MCF_IPSBAR + 0x100015)
+#define MCFGPIO_PDDR_SDRAM (MCF_IPSBAR + 0x100016)
+#define MCFGPIO_PDDR_FECI2C (MCF_IPSBAR + 0x100017)
+#define MCFGPIO_PDDR_UARTH (MCF_IPSBAR + 0x100018)
+#define MCFGPIO_PDDR_UARTL (MCF_IPSBAR + 0x100019)
+#define MCFGPIO_PDDR_QSPI (MCF_IPSBAR + 0x10001A)
+#define MCFGPIO_PDDR_TIMER (MCF_IPSBAR + 0x10001B)
+#define MCFGPIO_PDDR_ETPU (MCF_IPSBAR + 0x10001C)
+
+#define MCFGPIO_PPDSDR_ADDR (MCF_IPSBAR + 0x100020)
+#define MCFGPIO_PPDSDR_DATAH (MCF_IPSBAR + 0x100021)
+#define MCFGPIO_PPDSDR_DATAL (MCF_IPSBAR + 0x100022)
+#define MCFGPIO_PPDSDR_BUSCTL (MCF_IPSBAR + 0x100023)
+#define MCFGPIO_PPDSDR_BS (MCF_IPSBAR + 0x100024)
+#define MCFGPIO_PPDSDR_CS (MCF_IPSBAR + 0x100025)
+#define MCFGPIO_PPDSDR_SDRAM (MCF_IPSBAR + 0x100026)
+#define MCFGPIO_PPDSDR_FECI2C (MCF_IPSBAR + 0x100027)
+#define MCFGPIO_PPDSDR_UARTH (MCF_IPSBAR + 0x100028)
+#define MCFGPIO_PPDSDR_UARTL (MCF_IPSBAR + 0x100029)
+#define MCFGPIO_PPDSDR_QSPI (MCF_IPSBAR + 0x10002A)
+#define MCFGPIO_PPDSDR_TIMER (MCF_IPSBAR + 0x10002B)
+#define MCFGPIO_PPDSDR_ETPU (MCF_IPSBAR + 0x10002C)
+
+#define MCFGPIO_PCLRR_ADDR (MCF_IPSBAR + 0x100030)
+#define MCFGPIO_PCLRR_DATAH (MCF_IPSBAR + 0x100031)
+#define MCFGPIO_PCLRR_DATAL (MCF_IPSBAR + 0x100032)
+#define MCFGPIO_PCLRR_BUSCTL (MCF_IPSBAR + 0x100033)
+#define MCFGPIO_PCLRR_BS (MCF_IPSBAR + 0x100034)
+#define MCFGPIO_PCLRR_CS (MCF_IPSBAR + 0x100035)
+#define MCFGPIO_PCLRR_SDRAM (MCF_IPSBAR + 0x100036)
+#define MCFGPIO_PCLRR_FECI2C (MCF_IPSBAR + 0x100037)
+#define MCFGPIO_PCLRR_UARTH (MCF_IPSBAR + 0x100038)
+#define MCFGPIO_PCLRR_UARTL (MCF_IPSBAR + 0x100039)
+#define MCFGPIO_PCLRR_QSPI (MCF_IPSBAR + 0x10003A)
+#define MCFGPIO_PCLRR_TIMER (MCF_IPSBAR + 0x10003B)
+#define MCFGPIO_PCLRR_ETPU (MCF_IPSBAR + 0x10003C)
+
+/*
+ * EPort
+ */
+
+#define MCFEPORT_EPDDR (MCF_IPSBAR + 0x130002)
+#define MCFEPORT_EPDR (MCF_IPSBAR + 0x130004)
+#define MCFEPORT_EPPDR (MCF_IPSBAR + 0x130005)
+
+/*
+ * Generic GPIO support
+ */
+#define MCFGPIO_PODR MCFGPIO_PODR_ADDR
+#define MCFGPIO_PDDR MCFGPIO_PDDR_ADDR
+#define MCFGPIO_PPDR MCFGPIO_PPDSDR_ADDR
+#define MCFGPIO_SETR MCFGPIO_PPDSDR_ADDR
+#define MCFGPIO_CLRR MCFGPIO_PCLRR_ADDR
+
+#define MCFGPIO_PIN_MAX 107
+#define MCFGPIO_IRQ_MAX 8
+#define MCFGPIO_IRQ_VECBASE MCFINT_VECBASE
+
/****************************************************************************/
#endif /* m523xsim_h */
diff --git a/arch/m68knommu/platform/523x/Makefile b/arch/m68knommu/platform/523x/Makefile
index 5694d59..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..5585e4c
--- /dev/null
+++ b/arch/m68knommu/platform/523x/gpio.c
@@ -0,0 +1,283 @@
+/*
+ * Coldfire generic GPIO support
+ *
+ * (C) Copyright 2009, Steven King <sfking@...dc.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);
--
1.5.6.5
--
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