Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / arch / arm / mach-imx / devices / platform-imx-uart.c

diff --git a/kernel/arch/arm/mach-imx/devices/platform-imx-uart.c b/kernel/arch/arm/mach-imx/devices/platform-imx-uart.c
new file mode 100644 (file)
index 0000000..6962cff
--- /dev/null
+++ b/kernel/arch/arm/mach-imx/devices/platform-imx-uart.c
@@ -0,0 +1,132 @@
+/*
+ * Copyright (C) 2009-2010 Pengutronix
+ * Uwe Kleine-Koenig <u.kleine-koenig@pengutronix.de>
+ *
+ * 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 "../hardware.h"
+#include "devices-common.h"
+
+#define imx_imx_uart_3irq_data_entry(soc, _id, _hwid, _size)           \
+       [_id] = {                                                       \
+               .id = _id,                                              \
+               .iobase = soc ## _UART ## _hwid ## _BASE_ADDR,          \
+               .iosize = _size,                                        \
+               .irqrx = soc ## _INT_UART ## _hwid ## RX,               \
+               .irqtx = soc ## _INT_UART ## _hwid ## TX,               \
+               .irqrts = soc ## _INT_UART ## _hwid ## RTS,             \
+       }
+
+#define imx_imx_uart_1irq_data_entry(soc, _id, _hwid, _size)           \
+       [_id] = {                                                       \
+               .id = _id,                                              \
+               .iobase = soc ## _UART ## _hwid ## _BASE_ADDR,          \
+               .iosize = _size,                                        \
+               .irq = soc ## _INT_UART ## _hwid,                       \
+       }
+
+#ifdef CONFIG_SOC_IMX1
+const struct imx_imx_uart_3irq_data imx1_imx_uart_data[] __initconst = {
+#define imx1_imx_uart_data_entry(_id, _hwid)                           \
+       imx_imx_uart_3irq_data_entry(MX1, _id, _hwid, 0xd0)
+       imx1_imx_uart_data_entry(0, 1),
+       imx1_imx_uart_data_entry(1, 2),
+};
+#endif /* ifdef CONFIG_SOC_IMX1 */
+
+#ifdef CONFIG_SOC_IMX21
+const struct imx_imx_uart_1irq_data imx21_imx_uart_data[] __initconst = {
+#define imx21_imx_uart_data_entry(_id, _hwid)                          \
+       imx_imx_uart_1irq_data_entry(MX21, _id, _hwid, SZ_4K)
+       imx21_imx_uart_data_entry(0, 1),
+       imx21_imx_uart_data_entry(1, 2),
+       imx21_imx_uart_data_entry(2, 3),
+       imx21_imx_uart_data_entry(3, 4),
+};
+#endif
+
+#ifdef CONFIG_SOC_IMX27
+const struct imx_imx_uart_1irq_data imx27_imx_uart_data[] __initconst = {
+#define imx27_imx_uart_data_entry(_id, _hwid)                          \
+       imx_imx_uart_1irq_data_entry(MX27, _id, _hwid, SZ_4K)
+       imx27_imx_uart_data_entry(0, 1),
+       imx27_imx_uart_data_entry(1, 2),
+       imx27_imx_uart_data_entry(2, 3),
+       imx27_imx_uart_data_entry(3, 4),
+       imx27_imx_uart_data_entry(4, 5),
+       imx27_imx_uart_data_entry(5, 6),
+};
+#endif /* ifdef CONFIG_SOC_IMX27 */
+
+#ifdef CONFIG_SOC_IMX31
+const struct imx_imx_uart_1irq_data imx31_imx_uart_data[] __initconst = {
+#define imx31_imx_uart_data_entry(_id, _hwid)                          \
+       imx_imx_uart_1irq_data_entry(MX31, _id, _hwid, SZ_4K)
+       imx31_imx_uart_data_entry(0, 1),
+       imx31_imx_uart_data_entry(1, 2),
+       imx31_imx_uart_data_entry(2, 3),
+       imx31_imx_uart_data_entry(3, 4),
+       imx31_imx_uart_data_entry(4, 5),
+};
+#endif /* ifdef CONFIG_SOC_IMX31 */
+
+#ifdef CONFIG_SOC_IMX35
+const struct imx_imx_uart_1irq_data imx35_imx_uart_data[] __initconst = {
+#define imx35_imx_uart_data_entry(_id, _hwid)                          \
+       imx_imx_uart_1irq_data_entry(MX35, _id, _hwid, SZ_16K)
+       imx35_imx_uart_data_entry(0, 1),
+       imx35_imx_uart_data_entry(1, 2),
+       imx35_imx_uart_data_entry(2, 3),
+};
+#endif /* ifdef CONFIG_SOC_IMX35 */
+
+struct platform_device *__init imx_add_imx_uart_3irq(
+               const struct imx_imx_uart_3irq_data *data,
+               const struct imxuart_platform_data *pdata)
+{
+       struct resource res[] = {
+               {
+                       .start = data->iobase,
+                       .end = data->iobase + data->iosize - 1,
+                       .flags = IORESOURCE_MEM,
+               }, {
+                       .start = data->irqrx,
+                       .end = data->irqrx,
+                       .flags = IORESOURCE_IRQ,
+               }, {
+                       .start = data->irqtx,
+                       .end = data->irqtx,
+                       .flags = IORESOURCE_IRQ,
+               }, {
+                       .start = data->irqrts,
+                       .end = data->irqrx,
+                       .flags = IORESOURCE_IRQ,
+               },
+       };
+
+       return imx_add_platform_device("imx1-uart", data->id, res,
+                       ARRAY_SIZE(res), pdata, sizeof(*pdata));
+}
+
+struct platform_device *__init imx_add_imx_uart_1irq(
+               const struct imx_imx_uart_1irq_data *data,
+               const struct imxuart_platform_data *pdata)
+{
+       struct resource res[] = {
+               {
+                       .start = data->iobase,
+                       .end = data->iobase + data->iosize - 1,
+                       .flags = IORESOURCE_MEM,
+               }, {
+                       .start = data->irq,
+                       .end = data->irq,
+                       .flags = IORESOURCE_IRQ,
+               },
+       };
+
+       /* i.mx21 type uart runs on all i.mx except i.mx1 */
+       return imx_add_platform_device("imx21-uart", data->id,
+                       res, ARRAY_SIZE(res), pdata, sizeof(*pdata));
+}