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mxc: add MX3 support for i.MX internal UART driver
This patch adds MX3 support for the i.MX internal uart driver. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Sascha Hauer
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Robert Schwebel
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Jul 5, 2008
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,153 @@ | ||
| /* | ||
| * Copyright 2006-2007 Freescale Semiconductor, Inc. All Rights Reserved. | ||
| * Copyright 2008 Sascha Hauer, kernel@pengutronix.de | ||
| * | ||
| * 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., 51 Franklin Street, Fifth Floor, | ||
| * Boston, MA 02110-1301, USA. | ||
| */ | ||
|
|
||
| #include <linux/module.h> | ||
| #include <linux/platform_device.h> | ||
| #include <linux/serial.h> | ||
| #include <asm/hardware.h> | ||
| #include <asm/arch/imx-uart.h> | ||
|
|
||
| static struct resource uart0[] = { | ||
| { | ||
| .start = UART1_BASE_ADDR, | ||
| .end = UART1_BASE_ADDR + 0x0B5, | ||
| .flags = IORESOURCE_MEM, | ||
| }, { | ||
| .start = MXC_INT_UART1, | ||
| .end = MXC_INT_UART1, | ||
| .flags = IORESOURCE_IRQ, | ||
| }, | ||
| }; | ||
|
|
||
| static struct platform_device mxc_uart_device0 = { | ||
| .name = "imx-uart", | ||
| .id = 0, | ||
| .resource = uart0, | ||
| .num_resources = ARRAY_SIZE(uart0), | ||
| }; | ||
|
|
||
| static struct resource uart1[] = { | ||
| { | ||
| .start = UART2_BASE_ADDR, | ||
| .end = UART2_BASE_ADDR + 0x0B5, | ||
| .flags = IORESOURCE_MEM, | ||
| }, { | ||
| .start = MXC_INT_UART2, | ||
| .end = MXC_INT_UART2, | ||
| .flags = IORESOURCE_IRQ, | ||
| }, | ||
| }; | ||
|
|
||
| static struct platform_device mxc_uart_device1 = { | ||
| .name = "imx-uart", | ||
| .id = 1, | ||
| .resource = uart1, | ||
| .num_resources = ARRAY_SIZE(uart1), | ||
| }; | ||
|
|
||
| static struct resource uart2[] = { | ||
| { | ||
| .start = UART3_BASE_ADDR, | ||
| .end = UART3_BASE_ADDR + 0x0B5, | ||
| .flags = IORESOURCE_MEM, | ||
| }, { | ||
| .start = MXC_INT_UART3, | ||
| .end = MXC_INT_UART3, | ||
| .flags = IORESOURCE_IRQ, | ||
| }, | ||
| }; | ||
|
|
||
| static struct platform_device mxc_uart_device2 = { | ||
| .name = "imx-uart", | ||
| .id = 2, | ||
| .resource = uart2, | ||
| .num_resources = ARRAY_SIZE(uart2), | ||
| }; | ||
|
|
||
| static struct resource uart3[] = { | ||
| { | ||
| .start = UART4_BASE_ADDR, | ||
| .end = UART4_BASE_ADDR + 0x0B5, | ||
| .flags = IORESOURCE_MEM, | ||
| }, { | ||
| .start = MXC_INT_UART4, | ||
| .end = MXC_INT_UART4, | ||
| .flags = IORESOURCE_IRQ, | ||
| }, | ||
| }; | ||
|
|
||
| static struct platform_device mxc_uart_device3 = { | ||
| .name = "imx-uart", | ||
| .id = 3, | ||
| .resource = uart3, | ||
| .num_resources = ARRAY_SIZE(uart3), | ||
| }; | ||
|
|
||
| static struct resource uart4[] = { | ||
| { | ||
| .start = UART5_BASE_ADDR, | ||
| .end = UART5_BASE_ADDR + 0x0B5, | ||
| .flags = IORESOURCE_MEM, | ||
| }, { | ||
| .start = MXC_INT_UART5, | ||
| .end = MXC_INT_UART5, | ||
| .flags = IORESOURCE_IRQ, | ||
| }, | ||
| }; | ||
|
|
||
| static struct platform_device mxc_uart_device4 = { | ||
| .name = "imx-uart", | ||
| .id = 4, | ||
| .resource = uart4, | ||
| .num_resources = ARRAY_SIZE(uart4), | ||
| }; | ||
|
|
||
| /* | ||
| * Register only those UARTs that physically exist | ||
| */ | ||
| int __init imx_init_uart(int uart_no, struct imxuart_platform_data *pdata) | ||
| { | ||
| switch (uart_no) { | ||
| case 0: | ||
| mxc_uart_device0.dev.platform_data = pdata; | ||
| platform_device_register(&mxc_uart_device0); | ||
| break; | ||
| case 1: | ||
| mxc_uart_device1.dev.platform_data = pdata; | ||
| platform_device_register(&mxc_uart_device1); | ||
| break; | ||
| case 2: | ||
| mxc_uart_device2.dev.platform_data = pdata; | ||
| platform_device_register(&mxc_uart_device2); | ||
| break; | ||
| case 3: | ||
| mxc_uart_device3.dev.platform_data = pdata; | ||
| platform_device_register(&mxc_uart_device3); | ||
| break; | ||
| case 4: | ||
| mxc_uart_device4.dev.platform_data = pdata; | ||
| platform_device_register(&mxc_uart_device4); | ||
| break; | ||
| default: | ||
| return -ENODEV; | ||
| } | ||
|
|
||
| return 0; | ||
| } | ||
|
|
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,32 @@ | ||
| /* | ||
| * Copyright (C) 2008 by Sascha Hauer <kernel@pengutronix.de> | ||
| * | ||
| * 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., 51 Franklin Street, Fifth Floor, Boston, | ||
| * MA 02110-1301, USA. | ||
| */ | ||
|
|
||
| #ifndef ASMARM_ARCH_UART_H | ||
| #define ASMARM_ARCH_UART_H | ||
|
|
||
| #define IMXUART_HAVE_RTSCTS (1<<0) | ||
|
|
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| struct imxuart_platform_data { | ||
| int (*init)(struct platform_device *pdev); | ||
| int (*exit)(struct platform_device *pdev); | ||
| unsigned int flags; | ||
| }; | ||
|
|
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| int __init imx_init_uart(int uart_no, struct imxuart_platform_data *pdata); | ||
|
|
||
| #endif |