[Armadeus-commitlog] armadeus branch, master, updated. armadeus-4.0-2627-g6490053
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[Armadeus-commitlog] armadeus branch, master, updated. armadeus-4.0-2627-g6490053
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From: Julien B a. A. <ar...@us...> - 2011-12-08 17:38:12
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This is an automated email from the git hooks/post-receive script. It was
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The branch, master has been updated
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from a4800e7355a42b054ca5d70678f01135aca74264 (commit)
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- Log -----------------------------------------------------------------
commit 6490053baa376252bafb805611c182d8c719f3f0
Author: Julien Boibessot <jul...@ar...>
Date: Thu Dec 8 18:37:28 2011 +0100
[LINUX] Add small hack driver to use APF27 TIN as counter in userspace
-----------------------------------------------------------------------
Summary of changes:
target/linux/modules/Makefile | 5 +-
target/linux/modules/imx_counter/Kconfig | 7 +
.../modules/{max1027 => imx_counter}/Makefile | 4 +-
target/linux/modules/imx_counter/gpt2_plat.c | 120 ++++++++++++++++++++
4 files changed, 131 insertions(+), 5 deletions(-)
create mode 100644 target/linux/modules/imx_counter/Kconfig
copy target/linux/modules/{max1027 => imx_counter}/Makefile (84%)
create mode 100644 target/linux/modules/imx_counter/gpt2_plat.c
diff --git a/target/linux/modules/Makefile b/target/linux/modules/Makefile
index 893d6d8..245ea86 100755
--- a/target/linux/modules/Makefile
+++ b/target/linux/modules/Makefile
@@ -5,14 +5,13 @@
#
ifneq ($(KERNELRELEASE),)
-
# Part executed when called from kernel build system:
obj-$(CONFIG_ARMADEUS_DRIVERS) += gpio/ pwm/ backlight/ isp1761/ \
- imxlkeypad/ fpga/ max1027/ max9768/ display/ as1531_platform/
+ imxlkeypad/ fpga/ max1027/ max9768/ display/ as1531_platform/ \
+ imx_counter/
else
-
# Part executed when called from standard make in this directory:
ARMADEUS_BASE_DIR=../../..
diff --git a/target/linux/modules/imx_counter/Kconfig b/target/linux/modules/imx_counter/Kconfig
new file mode 100644
index 0000000..602fae2
--- /dev/null
+++ b/target/linux/modules/imx_counter/Kconfig
@@ -0,0 +1,7 @@
+#
+#
+
+config MX27_GPT2
+ tristate "Use i.MX27 timer 2 as counter"
+ ---help---
+ TBD.
diff --git a/target/linux/modules/max1027/Makefile b/target/linux/modules/imx_counter/Makefile
similarity index 84%
copy from target/linux/modules/max1027/Makefile
copy to target/linux/modules/imx_counter/Makefile
index aef647a..a9c0ef6 100755
--- a/target/linux/modules/max1027/Makefile
+++ b/target/linux/modules/imx_counter/Makefile
@@ -1,11 +1,11 @@
#
-# Makefile for the Armadeus Max1027
+# Makefile for the ...
#
# Part executed when called from kernel build system:
ifneq ($(KERNELRELEASE),)
-obj-$(CONFIG_ARMADEUS_MAX1027) += max1027.o
+obj-$(CONFIG_APF27_GPT2) += gpt2_plat.o
# Part executed when called from standard make in this directory:
# (preferably use Makefile in parent directory)
diff --git a/target/linux/modules/imx_counter/gpt2_plat.c b/target/linux/modules/imx_counter/gpt2_plat.c
new file mode 100644
index 0000000..74b0b05
--- /dev/null
+++ b/target/linux/modules/imx_counter/gpt2_plat.c
@@ -0,0 +1,120 @@
+/*
+ * Copyright (c) 2010 Julien Boibessot <jul...@ar...>
+ * sponsored by Armadeus Systems.
+ *
+ * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/device.h>
+#include <linux/clk.h>
+#include <linux/platform_device.h>
+
+#include <mach/common.h>
+#include <mach/iomux-mx1-mx2.h>
+#include <mach/gpio.h>
+
+#include <../mach-mx2/devices.h>
+
+
+struct clk *gpt2_clk;
+
+static int apf27_gpt2_pins[] = {
+ (GPIO_PORTC | GPIO_IN | GPIO_PF | 15), /* TIN */
+};
+
+static int __init gpt_plat_probe(struct platform_device *pdev)
+{
+ int ret = 0;
+
+ printk("--- %s\n", __func__);
+
+ /* Activates clock */
+ gpt2_clk = clk_get(&pdev->dev, "gpt_clk");
+
+ /* Configure TIN */
+ ret = mxc_gpio_setup_multiple_pins(apf27_gpt2_pins,
+ ARRAY_SIZE(apf27_gpt2_pins), "GPT");
+
+ return 0;
+}
+
+static int __exit gpt_plat_remove(struct platform_device *pdev)
+{
+ printk("--- %s\n", __func__);
+
+ mxc_gpio_release_multiple_pins(apf27_gpt2_pins, ARRAY_SIZE(apf27_gpt2_pins));
+
+ return 0;
+}
+
+
+MODULE_ALIAS("platform:gpt_timer");
+
+static struct platform_driver driver = {
+ .driver = {
+ .name = "imx_gpt",
+ .owner = THIS_MODULE,
+ },
+ .probe = gpt_plat_probe,
+ .remove = gpt_plat_remove,
+};
+
+static struct resource timer1_resources[] = {
+ [0] = {
+ .start = GPT2_BASE_ADDR,
+ .end = GPT2_BASE_ADDR + 0x17,
+ .flags = IORESOURCE_MEM
+ },
+ [1] = {
+ .start = MXC_INT_GPT2,
+ .end = MXC_INT_GPT2,
+ .flags = IORESOURCE_IRQ,
+ }
+};
+
+struct platform_device mxc_gpt1 = {
+ .name = "imx_gpt",
+ .id = 1,
+ .num_resources = ARRAY_SIZE(timer1_resources),
+ .resource = timer1_resources
+};
+
+
+static int __init gpt_plat_init(void)
+{
+ printk("--- %s\n", __func__);
+
+ platform_driver_register(&driver);
+ platform_device_register(&mxc_gpt1);
+
+ return 0;
+}
+
+static void __exit gpt_plat_exit(void)
+{
+ printk("--- %s\n", __func__);
+ /* To be completed ... */
+}
+
+module_init(gpt_plat_init);
+module_exit(gpt_plat_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Julien Boibessot <jul...@ar...>");
+MODULE_DESCRIPTION("Platform data for APF27 GPT2");
+
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