diff options
author | Linus Torvalds <torvalds@g5.osdl.org> | 2006-03-26 04:31:32 (GMT) |
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committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-03-26 04:31:32 (GMT) |
commit | 36ddf5bbdea7ba4582abc62f106f0f0e9f0b6b91 (patch) | |
tree | 163d637dfda12eba3f8822d3b2941869b2d0ba00 /drivers | |
parent | a41622eaa97e40c811fb7756f403c0d4caa65654 (diff) | |
parent | 104c7b03ea0913a24be103db66d8cf1f1f99a49a (diff) | |
download | linux-fsl-qoriq-36ddf5bbdea7ba4582abc62f106f0f0e9f0b6b91.tar.xz |
Merge master.kernel.org:/home/rmk/linux-2.6-serial
* master.kernel.org:/home/rmk/linux-2.6-serial:
[ARM] 3383/3: ixp2000: ixdp2x01 platform serial conversion
[SERIAL] amba-pl010: Remove accessor macros
[SERIAL] remove 8250_acpi (replaced by 8250_pnp and PNPACPI)
[SERIAL] icom: select FW_LOADER
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/serial/8250_acpi.c | 183 | ||||
-rw-r--r-- | drivers/serial/Kconfig | 9 | ||||
-rw-r--r-- | drivers/serial/Makefile | 1 | ||||
-rw-r--r-- | drivers/serial/amba-pl010.c | 110 |
4 files changed, 50 insertions, 253 deletions
diff --git a/drivers/serial/8250_acpi.c b/drivers/serial/8250_acpi.c deleted file mode 100644 index 809f89a..0000000 --- a/drivers/serial/8250_acpi.c +++ /dev/null @@ -1,183 +0,0 @@ -/* - * Copyright (c) 2002-2003 Matthew Wilcox for Hewlett-Packard - * Copyright (C) 2004 Hewlett-Packard Co - * Bjorn Helgaas <bjorn.helgaas@hp.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. - */ - -#include <linux/acpi.h> -#include <linux/init.h> -#include <linux/module.h> -#include <linux/serial_core.h> - -#include <acpi/acpi_bus.h> - -#include <asm/io.h> - -#include "8250.h" - -struct serial_private { - int line; -}; - -static acpi_status acpi_serial_mmio(struct uart_port *port, - struct acpi_resource_address64 *addr) -{ - port->mapbase = addr->minimum; - port->iotype = UPIO_MEM; - port->flags |= UPF_IOREMAP; - return AE_OK; -} - -static acpi_status acpi_serial_port(struct uart_port *port, - struct acpi_resource_io *io) -{ - if (io->address_length) { - port->iobase = io->minimum; - port->iotype = UPIO_PORT; - } else - printk(KERN_ERR "%s: zero-length IO port range?\n", __FUNCTION__); - return AE_OK; -} - -static acpi_status acpi_serial_ext_irq(struct uart_port *port, - struct acpi_resource_extended_irq *ext_irq) -{ - int rc; - - if (ext_irq->interrupt_count > 0) { - rc = acpi_register_gsi(ext_irq->interrupts[0], - ext_irq->triggering, ext_irq->polarity); - if (rc < 0) - return AE_ERROR; - port->irq = rc; - } - return AE_OK; -} - -static acpi_status acpi_serial_irq(struct uart_port *port, - struct acpi_resource_irq *irq) -{ - int rc; - - if (irq->interrupt_count > 0) { - rc = acpi_register_gsi(irq->interrupts[0], - irq->triggering, irq->polarity); - if (rc < 0) - return AE_ERROR; - port->irq = rc; - } - return AE_OK; -} - -static acpi_status acpi_serial_resource(struct acpi_resource *res, void *data) -{ - struct uart_port *port = (struct uart_port *) data; - struct acpi_resource_address64 addr; - acpi_status status; - - status = acpi_resource_to_address64(res, &addr); - if (ACPI_SUCCESS(status)) - return acpi_serial_mmio(port, &addr); - else if (res->type == ACPI_RESOURCE_TYPE_IO) - return acpi_serial_port(port, &res->data.io); - else if (res->type == ACPI_RESOURCE_TYPE_EXTENDED_IRQ) - return acpi_serial_ext_irq(port, &res->data.extended_irq); - else if (res->type == ACPI_RESOURCE_TYPE_IRQ) - return acpi_serial_irq(port, &res->data.irq); - return AE_OK; -} - -static int acpi_serial_add(struct acpi_device *device) -{ - struct serial_private *priv; - acpi_status status; - struct uart_port port; - int result; - - memset(&port, 0, sizeof(struct uart_port)); - - port.uartclk = 1843200; - port.flags = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF; - - priv = kmalloc(sizeof(struct serial_private), GFP_KERNEL); - if (!priv) { - result = -ENOMEM; - goto fail; - } - memset(priv, 0, sizeof(*priv)); - - status = acpi_walk_resources(device->handle, METHOD_NAME__CRS, - acpi_serial_resource, &port); - if (ACPI_FAILURE(status)) { - result = -ENODEV; - goto fail; - } - - if (!port.mapbase && !port.iobase) { - printk(KERN_ERR "%s: no iomem or port address in %s _CRS\n", - __FUNCTION__, device->pnp.bus_id); - result = -ENODEV; - goto fail; - } - - priv->line = serial8250_register_port(&port); - if (priv->line < 0) { - printk(KERN_WARNING "Couldn't register serial port %s: %d\n", - device->pnp.bus_id, priv->line); - result = -ENODEV; - goto fail; - } - - acpi_driver_data(device) = priv; - return 0; - -fail: - kfree(priv); - - return result; -} - -static int acpi_serial_remove(struct acpi_device *device, int type) -{ - struct serial_private *priv; - - if (!device || !acpi_driver_data(device)) - return -EINVAL; - - priv = acpi_driver_data(device); - serial8250_unregister_port(priv->line); - kfree(priv); - - return 0; -} - -static struct acpi_driver acpi_serial_driver = { - .name = "serial", - .class = "", - .ids = "PNP0501", - .ops = { - .add = acpi_serial_add, - .remove = acpi_serial_remove, - }, -}; - -static int __init acpi_serial_init(void) -{ - return acpi_bus_register_driver(&acpi_serial_driver); -} - -static void __exit acpi_serial_exit(void) -{ - acpi_bus_unregister_driver(&acpi_serial_driver); -} - -module_init(acpi_serial_init); -module_exit(acpi_serial_exit); - -MODULE_LICENSE("GPL"); -MODULE_DESCRIPTION("Generic 8250/16x50 ACPI serial driver"); diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig index c66ef96..ceb3697 100644 --- a/drivers/serial/Kconfig +++ b/drivers/serial/Kconfig @@ -77,14 +77,6 @@ config SERIAL_8250_CS If unsure, say N. -config SERIAL_8250_ACPI - bool "8250/16550 device discovery via ACPI namespace" - default y if IA64 - depends on ACPI && SERIAL_8250 - ---help--- - If you wish to enable serial port discovery via the ACPI - namespace, say Y here. If unsure, say N. - config SERIAL_8250_NR_UARTS int "Maximum number of 8250/16550 serial ports" depends on SERIAL_8250 @@ -827,6 +819,7 @@ config SERIAL_ICOM tristate "IBM Multiport Serial Adapter" depends on PCI && (PPC_ISERIES || PPC_PSERIES) select SERIAL_CORE + select FW_LOADER help This driver is for a family of multiport serial adapters including 2 port RVX, 2 port internal modem, 4 port internal diff --git a/drivers/serial/Makefile b/drivers/serial/Makefile index 50c221a..a3a4323 100644 --- a/drivers/serial/Makefile +++ b/drivers/serial/Makefile @@ -5,7 +5,6 @@ # serial-8250-y := -serial-8250-$(CONFIG_SERIAL_8250_ACPI) += 8250_acpi.o serial-8250-$(CONFIG_PNP) += 8250_pnp.o serial-8250-$(CONFIG_GSC) += 8250_gsc.o serial-8250-$(CONFIG_PCI) += 8250_pci.o diff --git a/drivers/serial/amba-pl010.c b/drivers/serial/amba-pl010.c index e04d5e8..127d6cd 100644 --- a/drivers/serial/amba-pl010.c +++ b/drivers/serial/amba-pl010.c @@ -62,26 +62,8 @@ #define AMBA_ISR_PASS_LIMIT 256 -/* - * Access macros for the AMBA UARTs - */ -#define UART_GET_INT_STATUS(p) readb((p)->membase + UART010_IIR) -#define UART_PUT_ICR(p, c) writel((c), (p)->membase + UART010_ICR) -#define UART_GET_FR(p) readb((p)->membase + UART01x_FR) -#define UART_GET_CHAR(p) readb((p)->membase + UART01x_DR) -#define UART_PUT_CHAR(p, c) writel((c), (p)->membase + UART01x_DR) -#define UART_GET_RSR(p) readb((p)->membase + UART01x_RSR) -#define UART_GET_CR(p) readb((p)->membase + UART010_CR) -#define UART_PUT_CR(p,c) writel((c), (p)->membase + UART010_CR) -#define UART_GET_LCRL(p) readb((p)->membase + UART010_LCRL) -#define UART_PUT_LCRL(p,c) writel((c), (p)->membase + UART010_LCRL) -#define UART_GET_LCRM(p) readb((p)->membase + UART010_LCRM) -#define UART_PUT_LCRM(p,c) writel((c), (p)->membase + UART010_LCRM) -#define UART_GET_LCRH(p) readb((p)->membase + UART010_LCRH) -#define UART_PUT_LCRH(p,c) writel((c), (p)->membase + UART010_LCRH) #define UART_RX_DATA(s) (((s) & UART01x_FR_RXFE) == 0) #define UART_TX_READY(s) (((s) & UART01x_FR_TXFF) == 0) -#define UART_TX_EMPTY(p) ((UART_GET_FR(p) & UART01x_FR_TMSK) == 0) #define UART_DUMMY_RSR_RX /*256*/0 #define UART_PORT_SIZE 64 @@ -110,36 +92,36 @@ static void pl010_stop_tx(struct uart_port *port) { unsigned int cr; - cr = UART_GET_CR(port); + cr = readb(port->membase + UART010_CR); cr &= ~UART010_CR_TIE; - UART_PUT_CR(port, cr); + writel(cr, port->membase + UART010_CR); } static void pl010_start_tx(struct uart_port *port) { unsigned int cr; - cr = UART_GET_CR(port); + cr = readb(port->membase + UART010_CR); cr |= UART010_CR_TIE; - UART_PUT_CR(port, cr); + writel(cr, port->membase + UART010_CR); } static void pl010_stop_rx(struct uart_port *port) { unsigned int cr; - cr = UART_GET_CR(port); + cr = readb(port->membase + UART010_CR); cr &= ~(UART010_CR_RIE | UART010_CR_RTIE); - UART_PUT_CR(port, cr); + writel(cr, port->membase + UART010_CR); } static void pl010_enable_ms(struct uart_port *port) { unsigned int cr; - cr = UART_GET_CR(port); + cr = readb(port->membase + UART010_CR); cr |= UART010_CR_MSIE; - UART_PUT_CR(port, cr); + writel(cr, port->membase + UART010_CR); } static void @@ -152,9 +134,9 @@ pl010_rx_chars(struct uart_port *port) struct tty_struct *tty = port->info->tty; unsigned int status, ch, flag, rsr, max_count = 256; - status = UART_GET_FR(port); + status = readb(port->membase + UART01x_FR); while (UART_RX_DATA(status) && max_count--) { - ch = UART_GET_CHAR(port); + ch = readb(port->membase + UART01x_DR); flag = TTY_NORMAL; port->icount.rx++; @@ -163,7 +145,7 @@ pl010_rx_chars(struct uart_port *port) * Note that the error handling code is * out of the main execution path */ - rsr = UART_GET_RSR(port) | UART_DUMMY_RSR_RX; + rsr = readb(port->membase + UART01x_RSR) | UART_DUMMY_RSR_RX; if (unlikely(rsr & UART01x_RSR_ANY)) { if (rsr & UART01x_RSR_BE) { rsr &= ~(UART01x_RSR_FE | UART01x_RSR_PE); @@ -193,7 +175,7 @@ pl010_rx_chars(struct uart_port *port) uart_insert_char(port, rsr, UART01x_RSR_OE, ch, flag); ignore_char: - status = UART_GET_FR(port); + status = readb(port->membase + UART01x_FR); } tty_flip_buffer_push(tty); return; @@ -205,7 +187,7 @@ static void pl010_tx_chars(struct uart_port *port) int count; if (port->x_char) { - UART_PUT_CHAR(port, port->x_char); + writel(port->x_char, port->membase + UART01x_DR); port->icount.tx++; port->x_char = 0; return; @@ -217,7 +199,7 @@ static void pl010_tx_chars(struct uart_port *port) count = port->fifosize >> 1; do { - UART_PUT_CHAR(port, xmit->buf[xmit->tail]); + writel(xmit->buf[xmit->tail], port->membase + UART01x_DR); xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1); port->icount.tx++; if (uart_circ_empty(xmit)) @@ -236,9 +218,9 @@ static void pl010_modem_status(struct uart_port *port) struct uart_amba_port *uap = (struct uart_amba_port *)port; unsigned int status, delta; - UART_PUT_ICR(&uap->port, 0); + writel(0, uap->port.membase + UART010_ICR); - status = UART_GET_FR(&uap->port) & UART01x_FR_MODEM_ANY; + status = readb(uap->port.membase + UART01x_FR) & UART01x_FR_MODEM_ANY; delta = status ^ uap->old_status; uap->old_status = status; @@ -266,7 +248,7 @@ static irqreturn_t pl010_int(int irq, void *dev_id, struct pt_regs *regs) spin_lock(&port->lock); - status = UART_GET_INT_STATUS(port); + status = readb(port->membase + UART010_IIR); if (status) { do { if (status & (UART010_IIR_RTIS | UART010_IIR_RIS)) @@ -283,7 +265,7 @@ static irqreturn_t pl010_int(int irq, void *dev_id, struct pt_regs *regs) if (pass_counter-- == 0) break; - status = UART_GET_INT_STATUS(port); + status = readb(port->membase + UART010_IIR); } while (status & (UART010_IIR_RTIS | UART010_IIR_RIS | UART010_IIR_TIS)); handled = 1; @@ -296,7 +278,7 @@ static irqreturn_t pl010_int(int irq, void *dev_id, struct pt_regs *regs) static unsigned int pl010_tx_empty(struct uart_port *port) { - return UART_GET_FR(port) & UART01x_FR_BUSY ? 0 : TIOCSER_TEMT; + return readb(port->membase + UART01x_FR) & UART01x_FR_BUSY ? 0 : TIOCSER_TEMT; } static unsigned int pl010_get_mctrl(struct uart_port *port) @@ -304,7 +286,7 @@ static unsigned int pl010_get_mctrl(struct uart_port *port) unsigned int result = 0; unsigned int status; - status = UART_GET_FR(port); + status = readb(port->membase + UART01x_FR); if (status & UART01x_FR_DCD) result |= TIOCM_CAR; if (status & UART01x_FR_DSR) @@ -340,12 +322,12 @@ static void pl010_break_ctl(struct uart_port *port, int break_state) unsigned int lcr_h; spin_lock_irqsave(&port->lock, flags); - lcr_h = UART_GET_LCRH(port); + lcr_h = readb(port->membase + UART010_LCRH); if (break_state == -1) lcr_h |= UART01x_LCRH_BRK; else lcr_h &= ~UART01x_LCRH_BRK; - UART_PUT_LCRH(port, lcr_h); + writel(lcr_h, port->membase + UART010_LCRH); spin_unlock_irqrestore(&port->lock, flags); } @@ -364,13 +346,13 @@ static int pl010_startup(struct uart_port *port) /* * initialise the old status of the modem signals */ - uap->old_status = UART_GET_FR(port) & UART01x_FR_MODEM_ANY; + uap->old_status = readb(port->membase + UART01x_FR) & UART01x_FR_MODEM_ANY; /* * Finally, enable interrupts */ - UART_PUT_CR(port, UART01x_CR_UARTEN | UART010_CR_RIE | - UART010_CR_RTIE); + writel(UART01x_CR_UARTEN | UART010_CR_RIE | UART010_CR_RTIE, + port->membase + UART010_CR); return 0; } @@ -385,11 +367,12 @@ static void pl010_shutdown(struct uart_port *port) /* * disable all interrupts, disable the port */ - UART_PUT_CR(port, 0); + writel(0, port->membase + UART010_CR); /* disable break condition and fifos */ - UART_PUT_LCRH(port, UART_GET_LCRH(port) & - ~(UART01x_LCRH_BRK | UART01x_LCRH_FEN)); + writel(readb(port->membase + UART010_LCRH) & + ~(UART01x_LCRH_BRK | UART01x_LCRH_FEN), + port->membase + UART010_LCRH); } static void @@ -466,25 +449,25 @@ pl010_set_termios(struct uart_port *port, struct termios *termios, port->ignore_status_mask |= UART_DUMMY_RSR_RX; /* first, disable everything */ - old_cr = UART_GET_CR(port) & ~UART010_CR_MSIE; + old_cr = readb(port->membase + UART010_CR) & ~UART010_CR_MSIE; if (UART_ENABLE_MS(port, termios->c_cflag)) old_cr |= UART010_CR_MSIE; - UART_PUT_CR(port, 0); + writel(0, port->membase + UART010_CR); /* Set baud rate */ quot -= 1; - UART_PUT_LCRM(port, ((quot & 0xf00) >> 8)); - UART_PUT_LCRL(port, (quot & 0xff)); + writel((quot & 0xf00) >> 8, port->membase + UART010_LCRM); + writel(quot & 0xff, port->membase + UART010_LCRL); /* * ----------v----------v----------v----------v----- * NOTE: MUST BE WRITTEN AFTER UARTLCR_M & UARTLCR_L * ----------^----------^----------^----------^----- */ - UART_PUT_LCRH(port, lcr_h); - UART_PUT_CR(port, old_cr); + writel(lcr_h, port->membase + UART010_LCRH); + writel(old_cr, port->membase + UART010_CR); spin_unlock_irqrestore(&port->lock, flags); } @@ -593,9 +576,13 @@ static struct uart_amba_port amba_ports[UART_NR] = { static void pl010_console_putchar(struct uart_port *port, int ch) { - while (!UART_TX_READY(UART_GET_FR(port))) + unsigned int status; + + do { + status = readb(port->membase + UART01x_FR); barrier(); - UART_PUT_CHAR(port, ch); + } while (!UART_TX_READY(status)); + writel(ch, port->membase + UART01x_DR); } static void @@ -607,8 +594,8 @@ pl010_console_write(struct console *co, const char *s, unsigned int count) /* * First save the CR then disable the interrupts */ - old_cr = UART_GET_CR(port); - UART_PUT_CR(port, UART01x_CR_UARTEN); + old_cr = readb(port->membase + UART010_CR); + writel(UART01x_CR_UARTEN, port->membase + UART010_CR); uart_console_write(port, s, count, pl010_console_putchar); @@ -617,18 +604,19 @@ pl010_console_write(struct console *co, const char *s, unsigned int count) * and restore the TCR */ do { - status = UART_GET_FR(port); + status = readb(port->membase + UART01x_FR); + barrier(); } while (status & UART01x_FR_BUSY); - UART_PUT_CR(port, old_cr); + writel(old_cr, port->membase + UART010_CR); } static void __init pl010_console_get_options(struct uart_port *port, int *baud, int *parity, int *bits) { - if (UART_GET_CR(port) & UART01x_CR_UARTEN) { + if (readb(port->membase + UART010_CR) & UART01x_CR_UARTEN) { unsigned int lcr_h, quot; - lcr_h = UART_GET_LCRH(port); + lcr_h = readb(port->membase + UART010_LCRH); *parity = 'n'; if (lcr_h & UART01x_LCRH_PEN) { @@ -643,7 +631,7 @@ pl010_console_get_options(struct uart_port *port, int *baud, else *bits = 8; - quot = UART_GET_LCRL(port) | UART_GET_LCRM(port) << 8; + quot = readb(port->membase + UART010_LCRL) | readb(port->membase + UART010_LCRM) << 8; *baud = port->uartclk / (16 * (quot + 1)); } } |