diff options
Diffstat (limited to 'drivers/serial/serial_altera_jtag.c')
-rw-r--r-- | drivers/serial/serial_altera_jtag.c | 109 |
1 files changed, 0 insertions, 109 deletions
diff --git a/drivers/serial/serial_altera_jtag.c b/drivers/serial/serial_altera_jtag.c deleted file mode 100644 index 1c485ed316..0000000000 --- a/drivers/serial/serial_altera_jtag.c +++ /dev/null @@ -1,109 +0,0 @@ -/* - * (C) Copyright 2004, Psyent Corporation <www.psyent.com> - * Scott McNutt <smcnutt@psyent.com> - * - * (C) Copyright 2011 - Franck JULLIEN <elec4fun@gmail.com> - * - * 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. - * - */ - -#include <common.h> -#include <driver.h> -#include <init.h> -#include <malloc.h> -#include <io.h> -#include <asm/nios2-io.h> - -struct altera_serial_jtag_priv { - struct console_device cdev; - void __iomem *regs; -}; - - -static int altera_serial_jtag_setbaudrate(struct console_device *cdev, int baudrate) -{ - return 0; -} - -static void altera_serial_jtag_putc(struct console_device *cdev, char c) -{ - struct altera_serial_jtag_priv *priv = container_of(cdev, - struct altera_serial_jtag_priv, cdev); - - struct nios_jtag *jtag = priv->regs; - uint32_t st; - - while (1) { - st = readl(&jtag->control); - if (NIOS_JTAG_WSPACE(st)) - break; - } - - writel(c, &jtag->data); -} - -static int altera_serial_jtag_tstc(struct console_device *cdev) -{ - struct altera_serial_jtag_priv *priv = container_of(cdev, - struct altera_serial_jtag_priv, cdev); - - struct nios_jtag *jtag = priv->regs; - - return readl(&jtag->control) & NIOS_JTAG_RRDY; -} - -static int altera_serial_jtag_getc(struct console_device *cdev) -{ - struct altera_serial_jtag_priv *priv = container_of(cdev, - struct altera_serial_jtag_priv, cdev); - - struct nios_jtag *jtag = priv->regs; - uint32_t val; - - while (1) { - val = readl(&jtag->data); - if (val & NIOS_JTAG_RVALID) - break; - } - - return val & 0xFF; -} - -static int altera_serial_jtag_probe(struct device_d *dev) { - struct resource *iores; - - struct console_device *cdev; - struct altera_serial_jtag_priv *priv; - - priv = xzalloc(sizeof(*priv)); - cdev = &priv->cdev; - - iores = dev_request_mem_resource(dev, 0); - if (IS_ERR(iores)) - return PTR_ERR(iores); - priv->regs = IOMEM(iores->start); - cdev->dev = dev; - cdev->tstc = altera_serial_jtag_tstc; - cdev->putc = altera_serial_jtag_putc; - cdev->getc = altera_serial_jtag_getc; - cdev->setbrg = altera_serial_jtag_setbaudrate; - - console_register(cdev); - - return 0; -} - -static struct driver_d altera_serial_jtag_driver = { - .name = "altera_serial_jtag", - .probe = altera_serial_jtag_probe, -}; -console_platform_driver(altera_serial_jtag_driver); |