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authorSrikant Patnaik2015-01-11 12:28:04 +0530
committerSrikant Patnaik2015-01-11 12:28:04 +0530
commit871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch)
tree8718f573808810c2a1e8cb8fb6ac469093ca2784 /arch/xtensa/platforms/s6105/device.c
parent9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff)
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Moved, renamed, and deleted files
The original directory structure was scattered and unorganized. Changes are basically to make it look like kernel structure.
Diffstat (limited to 'arch/xtensa/platforms/s6105/device.c')
-rw-r--r--arch/xtensa/platforms/s6105/device.c161
1 files changed, 161 insertions, 0 deletions
diff --git a/arch/xtensa/platforms/s6105/device.c b/arch/xtensa/platforms/s6105/device.c
new file mode 100644
index 00000000..4f4fc971
--- /dev/null
+++ b/arch/xtensa/platforms/s6105/device.c
@@ -0,0 +1,161 @@
+/*
+ * s6105 platform devices
+ *
+ * Copyright (c) 2009 emlix GmbH
+ */
+
+#include <linux/kernel.h>
+#include <linux/gpio.h>
+#include <linux/init.h>
+#include <linux/irq.h>
+#include <linux/phy.h>
+#include <linux/platform_device.h>
+#include <linux/serial.h>
+#include <linux/serial_8250.h>
+
+#include <variant/hardware.h>
+#include <variant/dmac.h>
+
+#include <platform/gpio.h>
+
+#define GPIO3_INTNUM 3
+#define UART_INTNUM 4
+#define GMAC_INTNUM 5
+
+static const signed char gpio3_irq_mappings[] = {
+ S6_INTC_GPIO(3),
+ -1
+};
+
+static const signed char uart_irq_mappings[] = {
+ S6_INTC_UART(0),
+ S6_INTC_UART(1),
+ -1,
+};
+
+static const signed char gmac_irq_mappings[] = {
+ S6_INTC_GMAC_STAT,
+ S6_INTC_GMAC_ERR,
+ S6_INTC_DMA_HOSTTERMCNT(0),
+ S6_INTC_DMA_HOSTTERMCNT(1),
+ -1
+};
+
+const signed char *platform_irq_mappings[NR_IRQS] = {
+ [GPIO3_INTNUM] = gpio3_irq_mappings,
+ [UART_INTNUM] = uart_irq_mappings,
+ [GMAC_INTNUM] = gmac_irq_mappings,
+};
+
+static struct plat_serial8250_port serial_platform_data[] = {
+ {
+ .membase = (void *)S6_REG_UART + 0x0000,
+ .mapbase = S6_REG_UART + 0x0000,
+ .irq = UART_INTNUM,
+ .uartclk = S6_SCLK,
+ .regshift = 2,
+ .iotype = SERIAL_IO_MEM,
+ .flags = ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST,
+ },
+ {
+ .membase = (void *)S6_REG_UART + 0x1000,
+ .mapbase = S6_REG_UART + 0x1000,
+ .irq = UART_INTNUM,
+ .uartclk = S6_SCLK,
+ .regshift = 2,
+ .iotype = SERIAL_IO_MEM,
+ .flags = ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST,
+ },
+ { },
+};
+
+static struct resource s6_gmac_resource[] = {
+ {
+ .name = "mem",
+ .start = (resource_size_t)S6_REG_GMAC,
+ .end = (resource_size_t)S6_REG_GMAC + 0x10000 - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .name = "dma",
+ .start = (resource_size_t)
+ DMA_CHNL(S6_REG_HIFDMA, S6_HIFDMA_GMACTX),
+ .end = (resource_size_t)
+ DMA_CHNL(S6_REG_HIFDMA, S6_HIFDMA_GMACTX) + 0x100 - 1,
+ .flags = IORESOURCE_DMA,
+ },
+ {
+ .name = "dma",
+ .start = (resource_size_t)
+ DMA_CHNL(S6_REG_HIFDMA, S6_HIFDMA_GMACRX),
+ .end = (resource_size_t)
+ DMA_CHNL(S6_REG_HIFDMA, S6_HIFDMA_GMACRX) + 0x100 - 1,
+ .flags = IORESOURCE_DMA,
+ },
+ {
+ .name = "io",
+ .start = (resource_size_t)S6_MEM_GMAC,
+ .end = (resource_size_t)S6_MEM_GMAC + 0x2000000 - 1,
+ .flags = IORESOURCE_IO,
+ },
+ {
+ .name = "irq",
+ .start = (resource_size_t)GMAC_INTNUM,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .name = "irq",
+ .start = (resource_size_t)PHY_POLL,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static int __init prepare_phy_irq(int pin)
+{
+ int irq;
+ if (gpio_request(pin, "s6gmac_phy") < 0)
+ goto fail;
+ if (gpio_direction_input(pin) < 0)
+ goto free;
+ irq = gpio_to_irq(pin);
+ if (irq < 0)
+ goto free;
+ if (irq_set_irq_type(irq, IRQ_TYPE_LEVEL_LOW) < 0)
+ goto free;
+ return irq;
+free:
+ gpio_free(pin);
+fail:
+ return PHY_POLL;
+}
+
+static struct platform_device platform_devices[] = {
+ {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM,
+ .dev = {
+ .platform_data = serial_platform_data,
+ },
+ },
+ {
+ .name = "s6gmac",
+ .id = 0,
+ .resource = s6_gmac_resource,
+ .num_resources = ARRAY_SIZE(s6_gmac_resource),
+ },
+ {
+ I2C_BOARD_INFO("m41t62", S6I2C_ADDR_M41T62),
+ },
+};
+
+static int __init device_init(void)
+{
+ int i;
+
+ s6_gmac_resource[5].start = prepare_phy_irq(GPIO_PHY_IRQ);
+
+ for (i = 0; i < ARRAY_SIZE(platform_devices); i++)
+ platform_device_register(&platform_devices[i]);
+ return 0;
+}
+arch_initcall_sync(device_init);