diff options
Diffstat (limited to 'recipes/linux/linux-2.6.34/ts72xx/0007-ts72xx_ts_ser1.patch')
| -rw-r--r-- | recipes/linux/linux-2.6.34/ts72xx/0007-ts72xx_ts_ser1.patch | 259 |
1 files changed, 259 insertions, 0 deletions
diff --git a/recipes/linux/linux-2.6.34/ts72xx/0007-ts72xx_ts_ser1.patch b/recipes/linux/linux-2.6.34/ts72xx/0007-ts72xx_ts_ser1.patch new file mode 100644 index 0000000000..a6fab759c7 --- /dev/null +++ b/recipes/linux/linux-2.6.34/ts72xx/0007-ts72xx_ts_ser1.patch @@ -0,0 +1,259 @@ +From f5b0dc2b5e15d83cbc51404d2a754ea8ea8961b5 Mon Sep 17 00:00:00 2001 +From: Matthieu Crapet <mcrapet@gmail.com> +Date: Wed, 16 Jun 2010 14:44:44 +0200 +Subject: [PATCH 07/18] ts72xx_ts_ser1 + +TS-SER1 - Serial Port PC/104 peripheral +--- + drivers/serial/8250_ts_ser1.c | 197 +++++++++++++++++++++++++++++++++++++++++ + drivers/serial/Kconfig | 17 ++++ + drivers/serial/Makefile | 1 + + 3 files changed, 215 insertions(+), 0 deletions(-) + create mode 100644 drivers/serial/8250_ts_ser1.c + +diff --git a/drivers/serial/8250_ts_ser1.c b/drivers/serial/8250_ts_ser1.c +new file mode 100644 +index 0000000..e5fe616 +--- /dev/null ++++ b/drivers/serial/8250_ts_ser1.c +@@ -0,0 +1,197 @@ ++/* ++ * linux/drivers/serial/8250_ts_ser1.c ++ * Technologic Systems TS-SER1 support. ++ * ++ * (c) Copyright 2006-2008 Matthieu Crapet <mcrapet@gmail.com> ++ * Data taken from include/asm-i386/serial.h ++ * ++ * 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. ++ * ++ * Pin Number: ++ * 1 DCD ++ * 2 Receive data ++ * 3 Trasmit data ++ * 4 DTR ++ * 5 Signal Ground ++ * 6 DSR ++ * 7 RTS ++ * 8 CTS ++ * 9 RI ++ */ ++ ++#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt ++ ++#include <linux/module.h> ++#include <linux/init.h> ++#include <linux/serial_8250.h> ++#include <linux/irq.h> ++#include <linux/io.h> ++#include <mach/hardware.h> ++#include <mach/ts72xx.h> ++#include <mach/gpio.h> ++ ++#define TS72XX_SER1_IO_PHYS_BASE (TS72XX_PC104_8BIT_IO_PHYS_BASE) ++#define TS72XX_SER1_IO_SIZE (TS72XX_PC104_8BIT_IO_SIZE) ++ ++#define TS_SER1_PORT_COM3 0x3E8 ++#define TS_SER1_PORT_COM4 0x2E8 ++#define TS_SER1_PORT_COM5 0x3A8 ++ ++/* Value to write in 16550A scratch register */ ++#define MARKER_BYTE 0xAA /* or 0x55 */ ++ ++#define PORT(_base,_irq) \ ++{ \ ++ .iobase = _base, \ ++ .membase = (void __iomem *)0, \ ++ .irq = _irq, \ ++ .uartclk = 1843200, \ ++ .iotype = UPIO_PORT, \ ++ .flags = UPF_BOOT_AUTOCONF, \ ++} ++/* Note: IRQ can be shared (see CONFIG_SERIAL_8250_SHARE_IRQ) */ ++ ++ ++static struct plat_serial8250_port ts72xx_ser1_data_com3[] = { ++ PORT(TS_SER1_PORT_COM3, 0), ++ { }, ++}; ++ ++static struct plat_serial8250_port ts72xx_ser1_data_com4[] = { ++ PORT(TS_SER1_PORT_COM4, 0), ++ { }, ++}; ++ ++static struct plat_serial8250_port ts72xx_ser1_data_com5[] = { ++ PORT(TS_SER1_PORT_COM5, 0), ++ { }, ++}; ++ ++ ++static int ts_ser1_irq = CONFIG_SERIAL_8250_TS_SER1_IRQ; // 5, 6 or 7 ++static struct platform_device *serial8250_ts_ser1_dev; ++ ++ ++static int __init ts_ser1_init(void) ++{ ++ struct plat_serial8250_port *comX = NULL; ++ void __iomem *iomem; ++ ++ int ret = -ENODEV; ++ int n = 0; // COM number as printed on TS-SER1 pcb ++ ++ iomem = ioremap(TS72XX_SER1_IO_PHYS_BASE, TS72XX_SER1_IO_SIZE); ++ ++ if (iomem != NULL) { ++ __raw_writeb(MARKER_BYTE, iomem + TS_SER1_PORT_COM3 + 7); ++ if (__raw_readb(iomem + TS_SER1_PORT_COM3 + 7) == MARKER_BYTE) { ++ comX = ts72xx_ser1_data_com3; ++ n = 3; ++ } else { ++ __raw_writeb(MARKER_BYTE, iomem + TS_SER1_PORT_COM4 + 7); ++ if (__raw_readb(iomem + TS_SER1_PORT_COM4 + 7) == MARKER_BYTE) { ++ comX = ts72xx_ser1_data_com4; ++ n = 4; ++ } else { ++ __raw_writeb(MARKER_BYTE, iomem + TS_SER1_PORT_COM5 + 7); ++ if (__raw_readb(iomem + TS_SER1_PORT_COM5 + 7) == MARKER_BYTE) { ++ comX = ts72xx_ser1_data_com5; ++ n = 5; ++ } ++ } ++ } ++ ++ if (comX) { ++ switch (ts_ser1_irq) { ++ case 5: ++ ret = gpio_request(EP93XX_GPIO_LINE_F(3), "TS-SER1"); ++ if (ret < 0) { ++ pr_err("gpio_request failed, try another irq\n"); ++ goto init_error; ++ } ++ gpio_direction_input(EP93XX_GPIO_LINE_F(3)); ++ comX->irq = gpio_to_irq(EP93XX_GPIO_LINE_F(3)); ++ set_irq_type(comX->irq, IRQ_TYPE_EDGE_RISING); ++ break; ++ case 6: ++ comX->irq = IRQ_EP93XX_EXT1; ++ break; ++ case 7: ++ comX->irq = IRQ_EP93XX_EXT3; ++ break; ++ default: ++ pr_err("wrong specified irq\n"); ++ goto init_error; ++ } ++ ++ comX->iobase += (unsigned long)iomem; // virtual address ++ ++ } else { ++ pr_err("can't detect COM number\n"); ++ goto init_error; ++ } ++ ++ /* create platform_device structure */ ++ serial8250_ts_ser1_dev = platform_device_alloc("serial8250", n); ++ if (!serial8250_ts_ser1_dev) { ++ ret = -ENOMEM; ++ goto init_error; ++ } ++ ++ ret = platform_device_add_data(serial8250_ts_ser1_dev, comX, ++ 2 * sizeof(struct plat_serial8250_port)); ++ if (ret) { ++ platform_device_put(serial8250_ts_ser1_dev); ++ goto init_error; ++ } ++ ++ ret = platform_device_add(serial8250_ts_ser1_dev); ++ if (ret) { ++ platform_device_put(serial8250_ts_ser1_dev); ++ goto init_error; ++ } ++ ++ platform_set_drvdata(serial8250_ts_ser1_dev, iomem); ++ return 0; ++ } ++ ++init_error: ++ if (iomem) { ++ iounmap(iomem); ++ iomem = NULL; ++ } ++ return ret; ++} ++ ++static void __exit ts_ser1_exit(void) ++{ ++ struct platform_device *pdev = serial8250_ts_ser1_dev; ++ void __iomem *iomem = platform_get_drvdata(pdev); ++ ++ serial8250_ts_ser1_dev = NULL; ++ ++ platform_device_unregister(pdev); ++ ++ iounmap(iomem); ++ if (ts_ser1_irq == 5) ++ gpio_free(EP93XX_GPIO_LINE_F(3)); ++} ++ ++module_init(ts_ser1_init); ++module_exit(ts_ser1_exit); ++ ++module_param(ts_ser1_irq, int, 0); ++MODULE_PARM_DESC(ts_ser1_irq, "TS-SER1 IRQ, default=" __MODULE_STRING(CONFIG_SERIAL_8250_TS_SER1_IRQ) ")"); ++ ++MODULE_AUTHOR("Matthieu Crapet <mcrapet@gmail.com>"); ++MODULE_DESCRIPTION("8250 serial probe module for TS-SER1 (TS-72xx)"); ++MODULE_LICENSE("GPL"); ++MODULE_VERSION("0.5"); +diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig +index e5702d1..9f38fc5 100644 +--- a/drivers/serial/Kconfig ++++ b/drivers/serial/Kconfig +@@ -275,6 +275,23 @@ config SERIAL_8250_RM9K + port hardware found on MIPS RM9122 and similar processors. + If unsure, say N. + ++config SERIAL_8250_TS_SER1 ++ tristate "Support TS-SER1 (for TS-72XX SBC)" ++ depends on SERIAL_8250 != n && MACH_TS72XX ++ help ++ Say Y here if you have a TS-SER1 PC/104 peripheral. ++ COM number will be configured automaticaly. ++ ++ To compile this driver as a module, choose M here: the module ++ will be called 8250_ts_ser1. ++ ++config SERIAL_8250_TS_SER1_IRQ ++ int "Selected IRQ (5, 6 or 7)" ++ depends on SERIAL_8250_TS_SER1 ++ default "5" ++ help ++ Enter jumper IRQ configuration ++ + comment "Non-8250 serial port support" + + config SERIAL_AMBA_PL010 +diff --git a/drivers/serial/Makefile b/drivers/serial/Makefile +index 6aa4723..a3b1cf2 100644 +--- a/drivers/serial/Makefile ++++ b/drivers/serial/Makefile +@@ -28,6 +28,7 @@ obj-$(CONFIG_SERIAL_8250_BOCA) += 8250_boca.o + obj-$(CONFIG_SERIAL_8250_EXAR_ST16C554) += 8250_exar_st16c554.o + obj-$(CONFIG_SERIAL_8250_HUB6) += 8250_hub6.o + obj-$(CONFIG_SERIAL_8250_MCA) += 8250_mca.o ++obj-$(CONFIG_SERIAL_8250_TS_SER1) += 8250_ts_ser1.o + obj-$(CONFIG_SERIAL_AMBA_PL010) += amba-pl010.o + obj-$(CONFIG_SERIAL_AMBA_PL011) += amba-pl011.o + obj-$(CONFIG_SERIAL_CLPS711X) += clps711x.o +-- +1.7.1 + |