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authorYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 12:17:53 -0700
committerYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 15:44:42 -0700
commit9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch)
tree1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/arch/arm/mach-imx/mach-scb9328.c
parent98260f3884f4a202f9ca5eabed40b1354c489b29 (diff)
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/arch/arm/mach-imx/mach-scb9328.c')
-rw-r--r--kernel/arch/arm/mach-imx/mach-scb9328.c143
1 files changed, 143 insertions, 0 deletions
diff --git a/kernel/arch/arm/mach-imx/mach-scb9328.c b/kernel/arch/arm/mach-imx/mach-scb9328.c
new file mode 100644
index 000000000..1f6bc3f7a
--- /dev/null
+++ b/kernel/arch/arm/mach-imx/mach-scb9328.c
@@ -0,0 +1,143 @@
+/*
+ * linux/arch/arm/mach-mx1/mach-scb9328.c
+ *
+ * Copyright (c) 2004 Sascha Hauer <saschahauer@web.de>
+ * Copyright (c) 2006-2008 Juergen Beisert <jbeisert@netscape.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/platform_device.h>
+#include <linux/mtd/physmap.h>
+#include <linux/interrupt.h>
+#include <linux/dm9000.h>
+#include <linux/gpio.h>
+
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/time.h>
+
+#include "common.h"
+#include "devices-imx1.h"
+#include "hardware.h"
+#include "iomux-mx1.h"
+
+/*
+ * This scb9328 has a 32MiB flash
+ */
+static struct resource flash_resource = {
+ .start = MX1_CS0_PHYS,
+ .end = MX1_CS0_PHYS + (32 * 1024 * 1024) - 1,
+ .flags = IORESOURCE_MEM,
+};
+
+static struct physmap_flash_data scb_flash_data = {
+ .width = 2,
+};
+
+static struct platform_device scb_flash_device = {
+ .name = "physmap-flash",
+ .id = 0,
+ .dev = {
+ .platform_data = &scb_flash_data,
+ },
+ .resource = &flash_resource,
+ .num_resources = 1,
+};
+
+/*
+ * scb9328 has a DM9000 network controller
+ * connected to CS5, with 16 bit data path
+ * and interrupt connected to GPIO 3
+ */
+
+/*
+ * internal datapath is fixed 16 bit
+ */
+static struct dm9000_plat_data dm9000_platdata = {
+ .flags = DM9000_PLATF_16BITONLY,
+};
+
+/*
+ * the DM9000 drivers wants two defined address spaces
+ * to gain access to address latch registers and the data path.
+ */
+static struct resource dm9000x_resources[] = {
+ {
+ .name = "address area",
+ .start = MX1_CS5_PHYS,
+ .end = MX1_CS5_PHYS + 1,
+ .flags = IORESOURCE_MEM, /* address access */
+ }, {
+ .name = "data area",
+ .start = MX1_CS5_PHYS + 4,
+ .end = MX1_CS5_PHYS + 5,
+ .flags = IORESOURCE_MEM, /* data access */
+ }, {
+ /* irq number is run-time assigned */
+ .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
+ },
+};
+
+static struct platform_device dm9000x_device = {
+ .name = "dm9000",
+ .id = 0,
+ .num_resources = ARRAY_SIZE(dm9000x_resources),
+ .resource = dm9000x_resources,
+ .dev = {
+ .platform_data = &dm9000_platdata,
+ }
+};
+
+static const int mxc_uart1_pins[] = {
+ PC9_PF_UART1_CTS,
+ PC10_PF_UART1_RTS,
+ PC11_PF_UART1_TXD,
+ PC12_PF_UART1_RXD,
+};
+
+static const struct imxuart_platform_data uart_pdata __initconst = {
+ .flags = IMXUART_HAVE_RTSCTS,
+};
+
+static struct platform_device *devices[] __initdata = {
+ &scb_flash_device,
+ &dm9000x_device,
+};
+
+/*
+ * scb9328_init - Init the CPU card itself
+ */
+static void __init scb9328_init(void)
+{
+ imx1_soc_init();
+
+ mxc_gpio_setup_multiple_pins(mxc_uart1_pins,
+ ARRAY_SIZE(mxc_uart1_pins), "UART1");
+
+ imx1_add_imx_uart0(&uart_pdata);
+
+ printk(KERN_INFO"Scb9328: Adding devices\n");
+ dm9000x_resources[2].start = gpio_to_irq(IMX_GPIO_NR(3, 3));
+ dm9000x_resources[2].end = gpio_to_irq(IMX_GPIO_NR(3, 3));
+ platform_add_devices(devices, ARRAY_SIZE(devices));
+}
+
+static void __init scb9328_timer_init(void)
+{
+ mx1_clocks_init(32000);
+}
+
+MACHINE_START(SCB9328, "Synertronixx scb9328")
+ /* Sascha Hauer */
+ .atag_offset = 100,
+ .map_io = mx1_map_io,
+ .init_early = imx1_init_early,
+ .init_irq = mx1_init_irq,
+ .init_time = scb9328_timer_init,
+ .init_machine = scb9328_init,
+ .restart = mxc_restart,
+MACHINE_END