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Diffstat (limited to 'arch/mips/cavium-octeon/serial.c')
-rw-r--r--arch/mips/cavium-octeon/serial.c109
1 files changed, 0 insertions, 109 deletions
diff --git a/arch/mips/cavium-octeon/serial.c b/arch/mips/cavium-octeon/serial.c
deleted file mode 100644
index f393f65f3923..000000000000
--- a/arch/mips/cavium-octeon/serial.c
+++ /dev/null
@@ -1,109 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 2004-2007 Cavium Networks
- */
-#include <linux/console.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/platform_device.h>
-#include <linux/serial.h>
-#include <linux/serial_8250.h>
-#include <linux/serial_reg.h>
-#include <linux/tty.h>
-#include <linux/irq.h>
-
-#include <asm/time.h>
-
-#include <asm/octeon/octeon.h>
-
-#define DEBUG_UART 1
-
-unsigned int octeon_serial_in(struct uart_port *up, int offset)
-{
- int rv = cvmx_read_csr((uint64_t)(up->membase + (offset << 3)));
- if (offset == UART_IIR && (rv & 0xf) == 7) {
- /* Busy interrupt, read the USR (39) and try again. */
- cvmx_read_csr((uint64_t)(up->membase + (39 << 3)));
- rv = cvmx_read_csr((uint64_t)(up->membase + (offset << 3)));
- }
- return rv;
-}
-
-void octeon_serial_out(struct uart_port *up, int offset, int value)
-{
- /*
- * If bits 6 or 7 of the OCTEON UART's LCR are set, it quits
- * working.
- */
- if (offset == UART_LCR)
- value &= 0x9f;
- cvmx_write_csr((uint64_t)(up->membase + (offset << 3)), (u8)value);
-}
-
-static int octeon_serial_probe(struct platform_device *pdev)
-{
- int irq, res;
- struct resource *res_mem;
- struct uart_8250_port up;
-
- /* All adaptors have an irq. */
- irq = platform_get_irq(pdev, 0);
- if (irq < 0)
- return irq;
-
- memset(&up, 0, sizeof(up));
-
- up.port.flags = ASYNC_SKIP_TEST | UPF_SHARE_IRQ | UPF_FIXED_TYPE;
- up.port.type = PORT_OCTEON;
- up.port.iotype = UPIO_MEM;
- up.port.regshift = 3;
- up.port.dev = &pdev->dev;
-
- if (octeon_is_simulation())
- /* Make simulator output fast*/
- up.port.uartclk = 115200 * 16;
- else
- up.port.uartclk = octeon_get_io_clock_rate();
-
- up.port.serial_in = octeon_serial_in;
- up.port.serial_out = octeon_serial_out;
- up.port.irq = irq;
-
- res_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (res_mem == NULL) {
- dev_err(&pdev->dev, "found no memory resource\n");
- return -ENXIO;
- }
- up.port.mapbase = res_mem->start;
- up.port.membase = ioremap(res_mem->start, resource_size(res_mem));
-
- res = serial8250_register_8250_port(&up);
-
- return res >= 0 ? 0 : res;
-}
-
-static struct of_device_id octeon_serial_match[] = {
- {
- .compatible = "cavium,octeon-3860-uart",
- },
- {},
-};
-MODULE_DEVICE_TABLE(of, octeon_serial_match);
-
-static struct platform_driver octeon_serial_driver = {
- .probe = octeon_serial_probe,
- .driver = {
- .owner = THIS_MODULE,
- .name = "octeon_serial",
- .of_match_table = octeon_serial_match,
- },
-};
-
-static int __init octeon_serial_init(void)
-{
- return platform_driver_register(&octeon_serial_driver);
-}
-late_initcall(octeon_serial_init);