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author | Sascha Hauer <s.hauer@pengutronix.de> | 2008-07-05 10:02:48 +0200 |
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committer | Robert Schwebel <r.schwebel@pengutronix.de> | 2008-07-05 10:02:48 +0200 |
commit | e3d13ff4b9d3b05d7a969153e2c049548e25deea (patch) | |
tree | 34210b2efa3d3c614f1a13797fb133e05d391045 /arch | |
parent | i.MX3: introduce clock API (diff) | |
download | linux-e3d13ff4b9d3b05d7a969153e2c049548e25deea.tar.xz linux-e3d13ff4b9d3b05d7a969153e2c049548e25deea.zip |
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>
Diffstat (limited to 'arch')
-rw-r--r-- | arch/arm/mach-mx3/Makefile | 2 | ||||
-rw-r--r-- | arch/arm/mach-mx3/devices.c | 153 |
2 files changed, 154 insertions, 1 deletions
diff --git a/arch/arm/mach-mx3/Makefile b/arch/arm/mach-mx3/Makefile index febb37f23935..a788cb0b793e 100644 --- a/arch/arm/mach-mx3/Makefile +++ b/arch/arm/mach-mx3/Makefile @@ -4,5 +4,5 @@ # Object file lists. -obj-y := mm.o time.o clock.o +obj-y := mm.o time.o clock.o devices.o obj-$(CONFIG_MACH_MX31ADS) += mx31ads.o diff --git a/arch/arm/mach-mx3/devices.c b/arch/arm/mach-mx3/devices.c new file mode 100644 index 000000000000..1bc6d23a1d58 --- /dev/null +++ b/arch/arm/mach-mx3/devices.c @@ -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; +} + |