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authorAndrew Lunn <andrew@lunn.ch>2011-05-15 13:32:41 +0200
committerNicolas Pitre <nico@fluxnic.net>2011-05-16 14:46:17 -0400
commit28a2b45054f2e3f3671e36a6e9efc82756afa31a (patch)
treeb33726c3de55636902cc033124eb3dd6ba6fe1d1 /arch/arm/plat-orion/common.c
parent5c60255149eece2a36ec9f5c99817b85f96fe8ec (diff)
downloadlinux-linaro-stable-28a2b45054f2e3f3671e36a6e9efc82756afa31a.tar.gz
ARM: orion: Consolidate the creation of the uart platform data.
Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Nicolas Pitre <nico@fluxnic.net>
Diffstat (limited to 'arch/arm/plat-orion/common.c')
-rw-r--r--arch/arm/plat-orion/common.c171
1 files changed, 171 insertions, 0 deletions
diff --git a/arch/arm/plat-orion/common.c b/arch/arm/plat-orion/common.c
new file mode 100644
index 000000000000..4eac532ae8ae
--- /dev/null
+++ b/arch/arm/plat-orion/common.c
@@ -0,0 +1,171 @@
+/*
+ * arch/arm/plat-orion/common.c
+ *
+ * Marvell Orion SoC common setup code used by multiple mach-/common.c
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/serial_8250.h>
+
+/* Fill in the resources structure and link it into the platform
+ device structure. There is always a memory region, and nearly
+ always an interrupt.*/
+static void fill_resources(struct platform_device *device,
+ struct resource *resources,
+ resource_size_t mapbase,
+ resource_size_t size,
+ unsigned int irq)
+{
+ device->resource = resources;
+ device->num_resources = 1;
+ resources[0].flags = IORESOURCE_MEM;
+ resources[0].start = mapbase;
+ resources[0].end = mapbase + size;
+
+ if (irq != NO_IRQ) {
+ device->num_resources++;
+ resources[1].flags = IORESOURCE_IRQ;
+ resources[1].start = irq;
+ resources[1].end = irq;
+ }
+}
+
+/*****************************************************************************
+ * UART
+ ****************************************************************************/
+static void __init uart_complete(
+ struct platform_device *orion_uart,
+ struct plat_serial8250_port *data,
+ struct resource *resources,
+ unsigned int membase,
+ resource_size_t mapbase,
+ unsigned int irq,
+ unsigned int uartclk)
+{
+ data->mapbase = mapbase;
+ data->membase = (void __iomem *)membase;
+ data->irq = irq;
+ data->uartclk = uartclk;
+ orion_uart->dev.platform_data = data;
+
+ fill_resources(orion_uart, resources, mapbase, 0xff, irq);
+ platform_device_register(orion_uart);
+}
+
+/*****************************************************************************
+ * UART0
+ ****************************************************************************/
+static struct plat_serial8250_port orion_uart0_data[] = {
+ {
+ .flags = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
+ .iotype = UPIO_MEM,
+ .regshift = 2,
+ }, {
+ },
+};
+
+static struct resource orion_uart0_resources[2];
+
+static struct platform_device orion_uart0 = {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM,
+};
+
+void __init orion_uart0_init(unsigned int membase,
+ resource_size_t mapbase,
+ unsigned int irq,
+ unsigned int uartclk)
+{
+ uart_complete(&orion_uart0, orion_uart0_data, orion_uart0_resources,
+ membase, mapbase, irq, uartclk);
+}
+
+/*****************************************************************************
+ * UART1
+ ****************************************************************************/
+static struct plat_serial8250_port orion_uart1_data[] = {
+ {
+ .flags = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
+ .iotype = UPIO_MEM,
+ .regshift = 2,
+ }, {
+ },
+};
+
+static struct resource orion_uart1_resources[2];
+
+static struct platform_device orion_uart1 = {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM1,
+};
+
+void __init orion_uart1_init(unsigned int membase,
+ resource_size_t mapbase,
+ unsigned int irq,
+ unsigned int uartclk)
+{
+ uart_complete(&orion_uart1, orion_uart1_data, orion_uart1_resources,
+ membase, mapbase, irq, uartclk);
+}
+
+/*****************************************************************************
+ * UART2
+ ****************************************************************************/
+static struct plat_serial8250_port orion_uart2_data[] = {
+ {
+ .flags = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
+ .iotype = UPIO_MEM,
+ .regshift = 2,
+ }, {
+ },
+};
+
+static struct resource orion_uart2_resources[2];
+
+static struct platform_device orion_uart2 = {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM2,
+};
+
+void __init orion_uart2_init(unsigned int membase,
+ resource_size_t mapbase,
+ unsigned int irq,
+ unsigned int uartclk)
+{
+ uart_complete(&orion_uart2, orion_uart2_data, orion_uart2_resources,
+ membase, mapbase, irq, uartclk);
+}
+
+/*****************************************************************************
+ * UART3
+ ****************************************************************************/
+static struct plat_serial8250_port orion_uart3_data[] = {
+ {
+ .flags = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
+ .iotype = UPIO_MEM,
+ .regshift = 2,
+ }, {
+ },
+};
+
+static struct resource orion_uart3_resources[2];
+
+static struct platform_device orion_uart3 = {
+ .name = "serial8250",
+ .id = 3,
+};
+
+void __init orion_uart3_init(unsigned int membase,
+ resource_size_t mapbase,
+ unsigned int irq,
+ unsigned int uartclk)
+{
+ uart_complete(&orion_uart3, orion_uart3_data, orion_uart3_resources,
+ membase, mapbase, irq, uartclk);
+}