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ar71xx: merge 2.6.39 patches

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Also remove the old UART driver for ar933x.

SVN-Revision: 27314
This commit is contained in:
Gabor Juhos 2011-06-29 08:57:37 +00:00
parent 74a88749f3
commit d98476c6bd
5 changed files with 37 additions and 985 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

43
target/linux/ar71xx/files/arch/mips/ar71xx/irq.c
View File

@ -37,13 +37,12 @@ static void ar71xx_gpio_irq_dispatch(void)
spurious_interrupt(); spurious_interrupt();
} }
static void ar71xx_gpio_irq_unmask(unsigned int irq) static void ar71xx_gpio_irq_unmask(struct irq_data *d)
{ {
unsigned int irq = d->irq - AR71XX_GPIO_IRQ_BASE;
void __iomem *base = ar71xx_gpio_base; void __iomem *base = ar71xx_gpio_base;
u32 t; u32 t;
irq -= AR71XX_GPIO_IRQ_BASE;
t = __raw_readl(base + GPIO_REG_INT_ENABLE); t = __raw_readl(base + GPIO_REG_INT_ENABLE);
__raw_writel(t | (1 << irq), base + GPIO_REG_INT_ENABLE); __raw_writel(t | (1 << irq), base + GPIO_REG_INT_ENABLE);
@ -51,13 +50,12 @@ static void ar71xx_gpio_irq_unmask(unsigned int irq)
(void) __raw_readl(base + GPIO_REG_INT_ENABLE); (void) __raw_readl(base + GPIO_REG_INT_ENABLE);
} }
static void ar71xx_gpio_irq_mask(unsigned int irq) static void ar71xx_gpio_irq_mask(struct irq_data *d)
{ {
unsigned int irq = d->irq - AR71XX_GPIO_IRQ_BASE;
void __iomem *base = ar71xx_gpio_base; void __iomem *base = ar71xx_gpio_base;
u32 t; u32 t;
irq -= AR71XX_GPIO_IRQ_BASE;
t = __raw_readl(base + GPIO_REG_INT_ENABLE); t = __raw_readl(base + GPIO_REG_INT_ENABLE);
__raw_writel(t & ~(1 << irq), base + GPIO_REG_INT_ENABLE); __raw_writel(t & ~(1 << irq), base + GPIO_REG_INT_ENABLE);
@ -67,9 +65,9 @@ static void ar71xx_gpio_irq_mask(unsigned int irq)
static struct irq_chip ar71xx_gpio_irq_chip = { static struct irq_chip ar71xx_gpio_irq_chip = {
.name = "AR71XX GPIO", .name = "AR71XX GPIO",
.unmask = ar71xx_gpio_irq_unmask, .irq_unmask = ar71xx_gpio_irq_unmask,
.mask = ar71xx_gpio_irq_mask, .irq_mask = ar71xx_gpio_irq_mask,
.mask_ack = ar71xx_gpio_irq_mask, .irq_mask_ack = ar71xx_gpio_irq_mask,
}; };
static struct irqaction ar71xx_gpio_irqaction = { static struct irqaction ar71xx_gpio_irqaction = {
@ -95,7 +93,7 @@ static void __init ar71xx_gpio_irq_init(void)
for (i = AR71XX_GPIO_IRQ_BASE; for (i = AR71XX_GPIO_IRQ_BASE;
i < AR71XX_GPIO_IRQ_BASE + AR71XX_GPIO_IRQ_COUNT; i++) i < AR71XX_GPIO_IRQ_BASE + AR71XX_GPIO_IRQ_COUNT; i++)
set_irq_chip_and_handler(i, &ar71xx_gpio_irq_chip, irq_set_chip_and_handler(i, &ar71xx_gpio_irq_chip,
handle_level_irq); handle_level_irq);
setup_irq(AR71XX_MISC_IRQ_GPIO, &ar71xx_gpio_irqaction); setup_irq(AR71XX_MISC_IRQ_GPIO, &ar71xx_gpio_irqaction);
@ -151,13 +149,12 @@ static void ar71xx_misc_irq_dispatch(void)
spurious_interrupt(); spurious_interrupt();
} }
static void ar71xx_misc_irq_unmask(unsigned int irq) static void ar71xx_misc_irq_unmask(struct irq_data *d)
{ {
unsigned int irq = d->irq - AR71XX_MISC_IRQ_BASE;
void __iomem *base = ar71xx_reset_base; void __iomem *base = ar71xx_reset_base;
u32 t; u32 t;
irq -= AR71XX_MISC_IRQ_BASE;
t = __raw_readl(base + AR71XX_RESET_REG_MISC_INT_ENABLE); t = __raw_readl(base + AR71XX_RESET_REG_MISC_INT_ENABLE);
__raw_writel(t | (1 << irq), base + AR71XX_RESET_REG_MISC_INT_ENABLE); __raw_writel(t | (1 << irq), base + AR71XX_RESET_REG_MISC_INT_ENABLE);
@ -165,13 +162,12 @@ static void ar71xx_misc_irq_unmask(unsigned int irq)
(void) __raw_readl(base + AR71XX_RESET_REG_MISC_INT_ENABLE); (void) __raw_readl(base + AR71XX_RESET_REG_MISC_INT_ENABLE);
} }
static void ar71xx_misc_irq_mask(unsigned int irq) static void ar71xx_misc_irq_mask(struct irq_data *d)
{ {
unsigned int irq = d->irq - AR71XX_MISC_IRQ_BASE;
void __iomem *base = ar71xx_reset_base; void __iomem *base = ar71xx_reset_base;
u32 t; u32 t;
irq -= AR71XX_MISC_IRQ_BASE;
t = __raw_readl(base + AR71XX_RESET_REG_MISC_INT_ENABLE); t = __raw_readl(base + AR71XX_RESET_REG_MISC_INT_ENABLE);
__raw_writel(t & ~(1 << irq), base + AR71XX_RESET_REG_MISC_INT_ENABLE); __raw_writel(t & ~(1 << irq), base + AR71XX_RESET_REG_MISC_INT_ENABLE);
@ -179,13 +175,12 @@ static void ar71xx_misc_irq_mask(unsigned int irq)
(void) __raw_readl(base + AR71XX_RESET_REG_MISC_INT_ENABLE); (void) __raw_readl(base + AR71XX_RESET_REG_MISC_INT_ENABLE);
} }
static void ar724x_misc_irq_ack(unsigned int irq) static void ar724x_misc_irq_ack(struct irq_data *d)
{ {
unsigned int irq = d->irq - AR71XX_MISC_IRQ_BASE;
void __iomem *base = ar71xx_reset_base; void __iomem *base = ar71xx_reset_base;
u32 t; u32 t;
irq -= AR71XX_MISC_IRQ_BASE;
t = __raw_readl(base + AR71XX_RESET_REG_MISC_INT_STATUS); t = __raw_readl(base + AR71XX_RESET_REG_MISC_INT_STATUS);
__raw_writel(t & ~(1 << irq), base + AR71XX_RESET_REG_MISC_INT_STATUS); __raw_writel(t & ~(1 << irq), base + AR71XX_RESET_REG_MISC_INT_STATUS);
@ -195,8 +190,8 @@ static void ar724x_misc_irq_ack(unsigned int irq)
static struct irq_chip ar71xx_misc_irq_chip = { static struct irq_chip ar71xx_misc_irq_chip = {
.name = "AR71XX MISC", .name = "AR71XX MISC",
.unmask = ar71xx_misc_irq_unmask, .irq_unmask = ar71xx_misc_irq_unmask,
.mask = ar71xx_misc_irq_mask, .irq_mask = ar71xx_misc_irq_mask,
}; };
static struct irqaction ar71xx_misc_irqaction = { static struct irqaction ar71xx_misc_irqaction = {
@ -221,16 +216,16 @@ static void __init ar71xx_misc_irq_init(void)
case AR71XX_SOC_AR9341: case AR71XX_SOC_AR9341:
case AR71XX_SOC_AR9342: case AR71XX_SOC_AR9342:
case AR71XX_SOC_AR9344: case AR71XX_SOC_AR9344:
ar71xx_misc_irq_chip.ack = ar724x_misc_irq_ack; ar71xx_misc_irq_chip.irq_ack = ar724x_misc_irq_ack;
break; break;
default: default:
ar71xx_misc_irq_chip.mask_ack = ar71xx_misc_irq_mask; ar71xx_misc_irq_chip.irq_mask_ack = ar71xx_misc_irq_mask;
break; break;
} }
for (i = AR71XX_MISC_IRQ_BASE; for (i = AR71XX_MISC_IRQ_BASE;
i < AR71XX_MISC_IRQ_BASE + AR71XX_MISC_IRQ_COUNT; i++) i < AR71XX_MISC_IRQ_BASE + AR71XX_MISC_IRQ_COUNT; i++)
set_irq_chip_and_handler(i, &ar71xx_misc_irq_chip, irq_set_chip_and_handler(i, &ar71xx_misc_irq_chip,
handle_level_irq); handle_level_irq);
setup_irq(AR71XX_CPU_IRQ_MISC, &ar71xx_misc_irqaction); setup_irq(AR71XX_CPU_IRQ_MISC, &ar71xx_misc_irqaction);

20
target/linux/ar71xx/files/arch/mips/pci/pci-ar71xx.c
View File

@ -329,13 +329,12 @@ static void ar71xx_pci_irq_handler(unsigned int irq, struct irq_desc *desc)
spurious_interrupt(); spurious_interrupt();
} }
static void ar71xx_pci_irq_unmask(unsigned int irq) static void ar71xx_pci_irq_unmask(struct irq_data *d)
{ {
unsigned int irq = d->irq - AR71XX_PCI_IRQ_BASE;
void __iomem *base = ar71xx_reset_base; void __iomem *base = ar71xx_reset_base;
u32 t; u32 t;
irq -= AR71XX_PCI_IRQ_BASE;
t = __raw_readl(base + AR71XX_RESET_REG_PCI_INT_ENABLE); t = __raw_readl(base + AR71XX_RESET_REG_PCI_INT_ENABLE);
__raw_writel(t | (1 << irq), base + AR71XX_RESET_REG_PCI_INT_ENABLE); __raw_writel(t | (1 << irq), base + AR71XX_RESET_REG_PCI_INT_ENABLE);
@ -343,13 +342,12 @@ static void ar71xx_pci_irq_unmask(unsigned int irq)
(void) __raw_readl(base + AR71XX_RESET_REG_PCI_INT_ENABLE); (void) __raw_readl(base + AR71XX_RESET_REG_PCI_INT_ENABLE);
} }
static void ar71xx_pci_irq_mask(unsigned int irq) static void ar71xx_pci_irq_mask(struct irq_data *d)
{ {
unsigned int irq = d->irq - AR71XX_PCI_IRQ_BASE;
void __iomem *base = ar71xx_reset_base; void __iomem *base = ar71xx_reset_base;
u32 t; u32 t;
irq -= AR71XX_PCI_IRQ_BASE;
t = __raw_readl(base + AR71XX_RESET_REG_PCI_INT_ENABLE); t = __raw_readl(base + AR71XX_RESET_REG_PCI_INT_ENABLE);
__raw_writel(t & ~(1 << irq), base + AR71XX_RESET_REG_PCI_INT_ENABLE); __raw_writel(t & ~(1 << irq), base + AR71XX_RESET_REG_PCI_INT_ENABLE);
@ -359,9 +357,9 @@ static void ar71xx_pci_irq_mask(unsigned int irq)
static struct irq_chip ar71xx_pci_irq_chip = { static struct irq_chip ar71xx_pci_irq_chip = {
.name = "AR71XX PCI ", .name = "AR71XX PCI ",
.mask = ar71xx_pci_irq_mask, .irq_mask = ar71xx_pci_irq_mask,
.unmask = ar71xx_pci_irq_unmask, .irq_unmask = ar71xx_pci_irq_unmask,
.mask_ack = ar71xx_pci_irq_mask, .irq_mask_ack = ar71xx_pci_irq_mask,
}; };
static void __init ar71xx_pci_irq_init(void) static void __init ar71xx_pci_irq_init(void)
@ -374,10 +372,10 @@ static void __init ar71xx_pci_irq_init(void)
for (i = AR71XX_PCI_IRQ_BASE; for (i = AR71XX_PCI_IRQ_BASE;
i < AR71XX_PCI_IRQ_BASE + AR71XX_PCI_IRQ_COUNT; i++) i < AR71XX_PCI_IRQ_BASE + AR71XX_PCI_IRQ_COUNT; i++)
set_irq_chip_and_handler(i, &ar71xx_pci_irq_chip, irq_set_chip_and_handler(i, &ar71xx_pci_irq_chip,
handle_level_irq); handle_level_irq);
set_irq_chained_handler(AR71XX_CPU_IRQ_IP2, ar71xx_pci_irq_handler); irq_set_chained_handler(AR71XX_CPU_IRQ_IP2, ar71xx_pci_irq_handler);
} }
int __init ar71xx_pcibios_init(void) int __init ar71xx_pcibios_init(void)

22
target/linux/ar71xx/files/arch/mips/pci/pci-ar724x.c
View File

@ -280,15 +280,13 @@ static void ar724x_pci_irq_handler(unsigned int irq, struct irq_desc *desc)
spurious_interrupt(); spurious_interrupt();
} }
static void ar724x_pci_irq_unmask(unsigned int irq) static void ar724x_pci_irq_unmask(struct irq_data *d)
{ {
void __iomem *base = ar724x_pci_ctrl_base; void __iomem *base = ar724x_pci_ctrl_base;
u32 t; u32 t;
switch (irq) { switch (d->irq) {
case AR71XX_PCI_IRQ_DEV0: case AR71XX_PCI_IRQ_DEV0:
irq -= AR71XX_PCI_IRQ_BASE;
t = __raw_readl(base + AR724X_PCI_REG_INT_MASK); t = __raw_readl(base + AR724X_PCI_REG_INT_MASK);
__raw_writel(t | AR724X_PCI_INT_DEV0, __raw_writel(t | AR724X_PCI_INT_DEV0,
base + AR724X_PCI_REG_INT_MASK); base + AR724X_PCI_REG_INT_MASK);
@ -297,15 +295,13 @@ static void ar724x_pci_irq_unmask(unsigned int irq)
} }
} }
static void ar724x_pci_irq_mask(unsigned int irq) static void ar724x_pci_irq_mask(struct irq_data *d)
{ {
void __iomem *base = ar724x_pci_ctrl_base; void __iomem *base = ar724x_pci_ctrl_base;
u32 t; u32 t;
switch (irq) { switch (d->irq) {
case AR71XX_PCI_IRQ_DEV0: case AR71XX_PCI_IRQ_DEV0:
irq -= AR71XX_PCI_IRQ_BASE;
t = __raw_readl(base + AR724X_PCI_REG_INT_MASK); t = __raw_readl(base + AR724X_PCI_REG_INT_MASK);
__raw_writel(t & ~AR724X_PCI_INT_DEV0, __raw_writel(t & ~AR724X_PCI_INT_DEV0,
base + AR724X_PCI_REG_INT_MASK); base + AR724X_PCI_REG_INT_MASK);
@ -324,9 +320,9 @@ static void ar724x_pci_irq_mask(unsigned int irq)
static struct irq_chip ar724x_pci_irq_chip = { static struct irq_chip ar724x_pci_irq_chip = {
.name = "AR724X PCI ", .name = "AR724X PCI ",
.mask = ar724x_pci_irq_mask, .irq_mask = ar724x_pci_irq_mask,
.unmask = ar724x_pci_irq_unmask, .irq_unmask = ar724x_pci_irq_unmask,
.mask_ack = ar724x_pci_irq_mask, .irq_mask_ack = ar724x_pci_irq_mask,
}; };
static void __init ar724x_pci_irq_init(void) static void __init ar724x_pci_irq_init(void)
@ -346,10 +342,10 @@ static void __init ar724x_pci_irq_init(void)
for (i = AR71XX_PCI_IRQ_BASE; for (i = AR71XX_PCI_IRQ_BASE;
i < AR71XX_PCI_IRQ_BASE + AR71XX_PCI_IRQ_COUNT; i++) i < AR71XX_PCI_IRQ_BASE + AR71XX_PCI_IRQ_COUNT; i++)
set_irq_chip_and_handler(i, &ar724x_pci_irq_chip, irq_set_chip_and_handler(i, &ar724x_pci_irq_chip,
handle_level_irq); handle_level_irq);
set_irq_chained_handler(AR71XX_CPU_IRQ_IP2, ar724x_pci_irq_handler); irq_set_chained_handler(AR71XX_CPU_IRQ_IP2, ar724x_pci_irq_handler);
} }
int __init ar724x_pcibios_init(void) int __init ar724x_pcibios_init(void)

678
target/linux/ar71xx/files/drivers/serial/ar933x_uart.c
View File

@ -1,678 +0,0 @@
/*
* Atheros AR933X SoC built-in UART driver
*
* Copyright (C) 2011 Gabor Juhos <juhosg@openwrt.org>
*
* Based on drivers/char/serial.c, by Linus Torvalds, Theodore Ts'o.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation.
*/
#include <linux/module.h>
#include <linux/ioport.h>
#include <linux/init.h>
#include <linux/console.h>
#include <linux/sysrq.h>
#include <linux/delay.h>
#include <linux/platform_device.h>
#include <linux/tty.h>
#include <linux/tty_flip.h>
#include <linux/serial_core.h>
#include <linux/serial.h>
#include <linux/slab.h>
#include <linux/io.h>
#include <linux/irq.h>
#include <asm/mach-ar71xx/ar933x_uart.h>
#include <asm/mach-ar71xx/ar933x_uart_platform.h>
#define DRIVER_NAME "ar933x-uart"
#define AR933X_DUMMY_STATUS_RD 0x01
static struct uart_driver ar933x_uart_driver;
struct ar933x_uart_port {
struct uart_port port;
unsigned int ier; /* shadow Interrupt Enable Register */
};
static inline unsigned int ar933x_uart_read(struct ar933x_uart_port *up,
int offset)
{
return readl(up->port.membase + offset);
}
static inline void ar933x_uart_write(struct ar933x_uart_port *up,
int offset, unsigned int value)
{
writel(value, up->port.membase + offset);
}
static inline void ar933x_uart_rmw(struct ar933x_uart_port *up,
unsigned int offset,
unsigned int mask,
unsigned int val)
{
unsigned int t;
t = ar933x_uart_read(up, offset);
t &= ~mask;
t |= val;
ar933x_uart_write(up, offset, t);
}
static inline void ar933x_uart_rmw_set(struct ar933x_uart_port *up,
unsigned int offset,
unsigned int val)
{
ar933x_uart_rmw(up, offset, 0, val);
}
static inline void ar933x_uart_rmw_clear(struct ar933x_uart_port *up,
unsigned int offset,
unsigned int val)
{
ar933x_uart_rmw(up, offset, val, 0);
}
static inline void ar933x_uart_start_tx_interrupt(struct ar933x_uart_port *up)
{
up->ier |= AR933X_UART_INT_TX_EMPTY;
ar933x_uart_write(up, AR933X_UART_INT_EN_REG, up->ier);
}
static inline void ar933x_uart_stop_tx_interrupt(struct ar933x_uart_port *up)
{
up->ier &= ~AR933X_UART_INT_TX_EMPTY;
ar933x_uart_write(up, AR933X_UART_INT_EN_REG,up->ier);
}
static inline void ar933x_uart_putc(struct ar933x_uart_port *up, int ch)
{
unsigned int rdata;
rdata = ch & AR933X_UART_DATA_TX_RX_MASK;
rdata |= AR933X_UART_DATA_TX_CSR;
ar933x_uart_write(up, AR933X_UART_DATA_REG, rdata);
}
static unsigned int ar933x_uart_tx_empty(struct uart_port *port)
{
struct ar933x_uart_port *up = (struct ar933x_uart_port *) port;
unsigned long flags;
unsigned int rdata;
spin_lock_irqsave(&up->port.lock, flags);
rdata = ar933x_uart_read(up, AR933X_UART_DATA_REG);
spin_unlock_irqrestore(&up->port.lock, flags);
return (rdata & AR933X_UART_DATA_TX_CSR) ? 0 : TIOCSER_TEMT;
}
static unsigned int ar933x_uart_get_mctrl(struct uart_port *port)
{
return TIOCM_CAR;
}
static void ar933x_uart_set_mctrl(struct uart_port *port, unsigned int mctrl)
{
}
static void ar933x_uart_start_tx(struct uart_port *port)
{
struct ar933x_uart_port *up = (struct ar933x_uart_port *) port;
ar933x_uart_start_tx_interrupt(up);
}
static void ar933x_uart_stop_tx(struct uart_port *port)
{
struct ar933x_uart_port *up = (struct ar933x_uart_port *) port;
ar933x_uart_stop_tx_interrupt(up);
}
static void ar933x_uart_stop_rx(struct uart_port *port)
{
struct ar933x_uart_port *up = (struct ar933x_uart_port *) port;
up->ier &= ~AR933X_UART_INT_RX_VALID;
ar933x_uart_write(up, AR933X_UART_INT_EN_REG, up->ier);
}
static void ar933x_uart_break_ctl(struct uart_port *port, int break_state)
{
struct ar933x_uart_port *up = (struct ar933x_uart_port *) port;
unsigned long flags;
spin_lock_irqsave(&up->port.lock, flags);
if (break_state == -1)
ar933x_uart_rmw_set(up, AR933X_UART_CS_REG,
AR933X_UART_CS_TX_BREAK);
else
ar933x_uart_rmw_clear(up, AR933X_UART_CS_REG,
AR933X_UART_CS_TX_BREAK);
spin_unlock_irqrestore(&up->port.lock, flags);
}
static void ar933x_uart_enable_ms(struct uart_port *port)
{
}
static void ar933x_uart_set_termios(struct uart_port *port,
struct ktermios *new,
struct ktermios *old)
{
struct ar933x_uart_port *up = (struct ar933x_uart_port *) port;
unsigned int cs;
unsigned long flags;
unsigned int baud, scale;
/* Only CS8 is supported */
new->c_cflag &= ~CSIZE;
new->c_cflag |= CS8;
/* Only one stop bit is supported */
new->c_cflag &= ~CSTOPB;
cs = 0;
if (new->c_cflag & PARENB) {
if (!(new->c_cflag & PARODD))
cs |= AR933X_UART_CS_PARITY_EVEN;
else
cs |= AR933X_UART_CS_PARITY_ODD;
} else {
cs |= AR933X_UART_CS_PARITY_NONE;
}
/* Mark/space parity is not supported */
new->c_cflag &= ~CMSPAR;
baud = uart_get_baud_rate(port, new, old, 0, port->uartclk / 16);
scale = (port->uartclk / (16 * baud)) - 1;
/*
* Ok, we're now changing the port state. Do it with
* interrupts disabled.
*/
spin_lock_irqsave(&up->port.lock, flags);
/* Update the per-port timeout. */
uart_update_timeout(port, new->c_cflag, baud);
up->port.ignore_status_mask = 0;
/* ignore all characters if CREAD is not set */
if ((new->c_cflag & CREAD) == 0)
up->port.ignore_status_mask |= AR933X_DUMMY_STATUS_RD;
ar933x_uart_write(up, AR933X_UART_CLOCK_REG,
scale << AR933X_UART_CLOCK_SCALE_S | 8192);
/* setup configuration register */
ar933x_uart_rmw(up, AR933X_UART_CS_REG, AR933X_UART_CS_PARITY_M, cs);
/* enable host interrupt */
ar933x_uart_rmw_set(up, AR933X_UART_CS_REG,
AR933X_UART_CS_HOST_INT_EN);
spin_unlock_irqrestore(&up->port.lock, flags);
if (tty_termios_baud_rate(new))
tty_termios_encode_baud_rate(new, baud, baud);
}
static void ar933x_uart_rx_chars(struct ar933x_uart_port *up)
{
struct tty_struct *tty = up->port.state->port.tty;
int max_count = 256;
do {
unsigned int rdata;
unsigned char ch;
rdata = ar933x_uart_read(up, AR933X_UART_DATA_REG);
if ((rdata & AR933X_UART_DATA_RX_CSR) == 0)
break;
/* remove the character from the FIFO */
ar933x_uart_write(up, AR933X_UART_DATA_REG,
AR933X_UART_DATA_RX_CSR);
up->port.icount.rx++;
ch = rdata & AR933X_UART_DATA_TX_RX_MASK;
if (uart_handle_sysrq_char(&up->port, ch))
continue;
if ((up->port.ignore_status_mask & AR933X_DUMMY_STATUS_RD) == 0)
tty_insert_flip_char(tty, ch, TTY_NORMAL);
} while (max_count-- > 0);
tty_flip_buffer_push(tty);
}
static void ar933x_uart_tx_chars(struct ar933x_uart_port *up)
{
struct circ_buf *xmit = &up->port.state->xmit;
int count;
if (uart_tx_stopped(&up->port))
return;
count = up->port.fifosize;
do {
unsigned int rdata;
rdata = ar933x_uart_read(up, AR933X_UART_DATA_REG);
if ((rdata & AR933X_UART_DATA_TX_CSR) == 0)
break;
if (up->port.x_char) {
ar933x_uart_putc(up, up->port.x_char);
up->port.icount.tx++;
up->port.x_char = 0;
continue;
}
if (uart_circ_empty(xmit))
break;
ar933x_uart_putc(up, xmit->buf[xmit->tail]);
xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);
up->port.icount.tx++;
} while (--count > 0);
if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
uart_write_wakeup(&up->port);
if (!uart_circ_empty(xmit))
ar933x_uart_start_tx_interrupt(up);
}
static irqreturn_t ar933x_uart_interrupt(int irq, void *dev_id)
{
struct ar933x_uart_port *up = dev_id;
unsigned int status;
status = ar933x_uart_read(up, AR933X_UART_CS_REG);
if ((status & AR933X_UART_CS_HOST_INT) == 0)
return IRQ_NONE;
spin_lock(&up->port.lock);
status = ar933x_uart_read(up, AR933X_UART_INT_REG);
status &= ar933x_uart_read(up, AR933X_UART_INT_EN_REG);
if (status & AR933X_UART_INT_RX_VALID) {
ar933x_uart_write(up, AR933X_UART_INT_REG,
AR933X_UART_INT_RX_VALID);
ar933x_uart_rx_chars(up);
}
if (status & AR933X_UART_INT_TX_EMPTY) {
ar933x_uart_write(up, AR933X_UART_INT_REG,
AR933X_UART_INT_TX_EMPTY);
ar933x_uart_stop_tx_interrupt(up);
ar933x_uart_tx_chars(up);
}
spin_unlock(&up->port.lock);
return IRQ_HANDLED;
}
static int ar933x_uart_startup(struct uart_port *port)
{
struct ar933x_uart_port *up = (struct ar933x_uart_port *) port;
unsigned long flags;
int ret;
ret = request_irq(up->port.irq, ar933x_uart_interrupt,
up->port.irqflags, dev_name(up->port.dev), up);
if (ret)
return ret;
spin_lock_irqsave(&up->port.lock, flags);
/* Enable HOST interrupts */
ar933x_uart_rmw_set(up, AR933X_UART_CS_REG,
AR933X_UART_CS_HOST_INT_EN);
/* Enable RX interrupts */
up->ier = AR933X_UART_INT_RX_VALID;
ar933x_uart_write(up, AR933X_UART_INT_EN_REG, up->ier);
spin_unlock_irqrestore(&up->port.lock, flags);
return 0;
}
static void ar933x_uart_shutdown(struct uart_port *port)
{
struct ar933x_uart_port *up = (struct ar933x_uart_port *) port;
/* Disable all interrupts */
up->ier = 0;
ar933x_uart_write(up, AR933X_UART_INT_EN_REG, up->ier);
/* Disable break condition */
ar933x_uart_rmw_clear(up, AR933X_UART_CS_REG,
AR933X_UART_CS_TX_BREAK);
free_irq(up->port.irq, up);
}
static const char *ar933x_uart_type(struct uart_port *port)
{
return (port->type == PORT_AR933X) ? "AR933X UART" : NULL;
}
static void ar933x_uart_release_port(struct uart_port *port)
{
/* Nothing to release ... */
}
static int ar933x_uart_request_port(struct uart_port *port)
{
/* UARTs always present */
return 0;
}
static void ar933x_uart_config_port(struct uart_port *port, int flags)
{
if (flags & UART_CONFIG_TYPE)
port->type = PORT_AR933X;
}
static int ar933x_uart_verify_port(struct uart_port *port,
struct serial_struct *ser)
{
if (ser->type != PORT_UNKNOWN &&
ser->type != PORT_AR933X)
return -EINVAL;
if (ser->irq < 0 || ser->irq >= NR_IRQS)
return -EINVAL;
if (ser->baud_base < 28800)
return -EINVAL;
return 0;
}
static struct uart_ops ar933x_uart_ops = {
.tx_empty = ar933x_uart_tx_empty,
.set_mctrl = ar933x_uart_set_mctrl,
.get_mctrl = ar933x_uart_get_mctrl,
.stop_tx = ar933x_uart_stop_tx,
.start_tx = ar933x_uart_start_tx,
.stop_rx = ar933x_uart_stop_rx,
.enable_ms = ar933x_uart_enable_ms,
.break_ctl = ar933x_uart_break_ctl,
.startup = ar933x_uart_startup,
.shutdown = ar933x_uart_shutdown,
.set_termios = ar933x_uart_set_termios,
.type = ar933x_uart_type,
.release_port = ar933x_uart_release_port,
.request_port = ar933x_uart_request_port,
.config_port = ar933x_uart_config_port,
.verify_port = ar933x_uart_verify_port,
};
#ifdef CONFIG_SERIAL_AR933X_CONSOLE
static struct ar933x_uart_port *ar933x_console_ports[CONFIG_SERIAL_AR933X_NR_UARTS];
static void ar933x_uart_wait_xmitr(struct ar933x_uart_port *up)
{
unsigned int status;
unsigned int timeout = 60000;
/* Wait up to 60ms for the character(s) to be sent. */
do {
status = ar933x_uart_read(up, AR933X_UART_DATA_REG);
if (--timeout == 0)
break;
udelay(1);
} while ((status & AR933X_UART_DATA_TX_CSR) == 0);
}
static void ar933x_uart_console_putchar(struct uart_port *port, int ch)
{
struct ar933x_uart_port *up = (struct ar933x_uart_port *) port;
ar933x_uart_wait_xmitr(up);
ar933x_uart_putc(up, ch);
}
static void ar933x_uart_console_write(struct console *co, const char *s,
unsigned int count)
{
struct ar933x_uart_port *up = ar933x_console_ports[co->index];
unsigned long flags;
unsigned int int_en;
int locked = 1;
local_irq_save(flags);
if (up->port.sysrq)
locked = 0;
else if (oops_in_progress)
locked = spin_trylock(&up->port.lock);
else
spin_lock(&up->port.lock);
/*
* First save the IER then disable the interrupts
*/
int_en = ar933x_uart_read(up, AR933X_UART_INT_EN_REG);
ar933x_uart_write(up, AR933X_UART_INT_EN_REG, 0);
uart_console_write(&up->port, s, count, ar933x_uart_console_putchar);
/*
* Finally, wait for transmitter to become empty
* and restore the IER
*/
ar933x_uart_wait_xmitr(up);
ar933x_uart_write(up, AR933X_UART_INT_EN_REG, int_en);
ar933x_uart_write(up, AR933X_UART_INT_REG, AR933X_UART_INT_ALLINTS);
if (locked)
spin_unlock(&up->port.lock);
local_irq_restore(flags);
}
static int ar933x_uart_console_setup(struct console *co, char *options)
{
struct ar933x_uart_port *up;
int baud = 115200;
int bits = 8;
int parity = 'n';
int flow = 'n';
if (co->index < 0 || co->index >= CONFIG_SERIAL_AR933X_NR_UARTS)
return -EINVAL;
up = ar933x_console_ports[co->index];
if (!up)
return -ENODEV;
if (options)
uart_parse_options(options, &baud, &parity, &bits, &flow);
return uart_set_options(&up->port, co, baud, parity, bits, flow);
}
static struct console ar933x_uart_console = {
.name = "ttyATH",
.write = ar933x_uart_console_write,
.device = uart_console_device,
.setup = ar933x_uart_console_setup,
.flags = CON_PRINTBUFFER,
.index = -1,
.data = &ar933x_uart_driver,
};
static void ar933x_uart_add_console_port(struct ar933x_uart_port *up)
{
ar933x_console_ports[up->port.line] = up;
}
#define AR933X_SERIAL_CONSOLE &ar933x_uart_console
#else
static inline void ar933x_uart_add_console_port(struct ar933x_uart_port *up) {}
#define AR933X_SERIAL_CONSOLE NULL
#endif /* CONFIG_SERIAL_AR933X_CONSOLE */
static struct uart_driver ar933x_uart_driver = {
.owner = THIS_MODULE,
.driver_name = DRIVER_NAME,
.dev_name = "ttyATH",
.nr = CONFIG_SERIAL_AR933X_NR_UARTS,
.cons = AR933X_SERIAL_CONSOLE,
};
static int __devinit ar933x_uart_probe(struct platform_device *pdev)
{
struct ar933x_uart_platform_data *pdata;
struct ar933x_uart_port *up;
struct uart_port *port;
struct resource *mem_res;
struct resource *irq_res;
int id;
int ret;
pdata = pdev->dev.platform_data;
if (!pdata)
return -EINVAL;
id = pdev->id;
if (id == -1)
id = 0;
if (id > CONFIG_SERIAL_AR933X_NR_UARTS)
return -EINVAL;
mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!mem_res) {
dev_err(&pdev->dev, "no MEM resource\n");
return -EINVAL;
}
irq_res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
if (!irq_res) {
dev_err(&pdev->dev, "no IRQ resource\n");
return -EINVAL;
}
up = kzalloc(sizeof(struct ar933x_uart_port), GFP_KERNEL);
if (!up)
return -ENOMEM;
port = &up->port;
port->mapbase = mem_res->start;
port->membase = ioremap(mem_res->start, AR933X_UART_REGS_SIZE);
if (!port->membase) {
ret = -ENOMEM;
goto err_free_up;
}
port->line = id;
port->irq = irq_res->start;
port->dev = &pdev->dev;
port->type = PORT_AR933X;
port->iotype = UPIO_MEM32;
port->uartclk = pdata->uartclk;
port->regshift = 2;
port->fifosize = AR933X_UART_FIFO_SIZE;
port->ops = &ar933x_uart_ops;
ar933x_uart_add_console_port(up);
ret = uart_add_one_port(&ar933x_uart_driver, &up->port);
if (ret)
goto err_unmap;
platform_set_drvdata(pdev, up);
return 0;
err_unmap:
iounmap(up->port.membase);
err_free_up:
kfree(up);
return ret;
}
static int __devexit ar933x_uart_remove(struct platform_device *pdev)
{
struct ar933x_uart_port *up;
up = platform_get_drvdata(pdev);
platform_set_drvdata(pdev, NULL);
if (up) {
uart_remove_one_port(&ar933x_uart_driver, &up->port);
iounmap(up->port.membase);
kfree(up);
}
return 0;
}
static struct platform_driver ar933x_uart_platform_driver = {
.probe = ar933x_uart_probe,
.remove = __devexit_p(ar933x_uart_remove),
.driver = {
.name = DRIVER_NAME,
.owner = THIS_MODULE,
},
};
static int __init ar933x_uart_init(void)
{
int ret;
ar933x_uart_driver.nr = CONFIG_SERIAL_AR933X_NR_UARTS;
ret = uart_register_driver(&ar933x_uart_driver);
if (ret)
goto err_out;
ret = platform_driver_register(&ar933x_uart_platform_driver);
if (ret)
goto err_unregister_uart_driver;
return 0;
err_unregister_uart_driver:
uart_unregister_driver(&ar933x_uart_driver);
err_out:
return ret;
}
static void __exit ar933x_uart_exit(void)
{
platform_driver_unregister(&ar933x_uart_platform_driver);
uart_unregister_driver(&ar933x_uart_driver);
}
module_init(ar933x_uart_init);
module_exit(ar933x_uart_exit);
MODULE_DESCRIPTION("Atheros AR933X UART driver");
MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org>");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:" DRIVER_NAME);

259
target/linux/ar71xx/patches-2.6.39/950-convert-to-new-irq-functions.patch
View File

@ -1,259 +0,0 @@
--- a/arch/mips/ar71xx/irq.c
+++ b/arch/mips/ar71xx/irq.c
@@ -37,13 +37,12 @@ static void ar71xx_gpio_irq_dispatch(voi
spurious_interrupt();
}
-static void ar71xx_gpio_irq_unmask(unsigned int irq)
+static void ar71xx_gpio_irq_unmask(struct irq_data *d)
{
+ unsigned int irq = d->irq - AR71XX_GPIO_IRQ_BASE;
void __iomem *base = ar71xx_gpio_base;
u32 t;
- irq -= AR71XX_GPIO_IRQ_BASE;
-
t = __raw_readl(base + GPIO_REG_INT_ENABLE);
__raw_writel(t | (1 << irq), base + GPIO_REG_INT_ENABLE);
@@ -51,13 +50,12 @@ static void ar71xx_gpio_irq_unmask(unsig
(void) __raw_readl(base + GPIO_REG_INT_ENABLE);
}
-static void ar71xx_gpio_irq_mask(unsigned int irq)
+static void ar71xx_gpio_irq_mask(struct irq_data *d)
{
+ unsigned int irq = d->irq - AR71XX_GPIO_IRQ_BASE;
void __iomem *base = ar71xx_gpio_base;
u32 t;
- irq -= AR71XX_GPIO_IRQ_BASE;
-
t = __raw_readl(base + GPIO_REG_INT_ENABLE);
__raw_writel(t & ~(1 << irq), base + GPIO_REG_INT_ENABLE);
@@ -67,9 +65,9 @@ static void ar71xx_gpio_irq_mask(unsigne
static struct irq_chip ar71xx_gpio_irq_chip = {
.name = "AR71XX GPIO",
- .unmask = ar71xx_gpio_irq_unmask,
- .mask = ar71xx_gpio_irq_mask,
- .mask_ack = ar71xx_gpio_irq_mask,
+ .irq_unmask = ar71xx_gpio_irq_unmask,
+ .irq_mask = ar71xx_gpio_irq_mask,
+ .irq_mask_ack = ar71xx_gpio_irq_mask,
};
static struct irqaction ar71xx_gpio_irqaction = {
@@ -95,7 +93,7 @@ static void __init ar71xx_gpio_irq_init(
for (i = AR71XX_GPIO_IRQ_BASE;
i < AR71XX_GPIO_IRQ_BASE + AR71XX_GPIO_IRQ_COUNT; i++)
- set_irq_chip_and_handler(i, &ar71xx_gpio_irq_chip,
+ irq_set_chip_and_handler(i, &ar71xx_gpio_irq_chip,
handle_level_irq);
setup_irq(AR71XX_MISC_IRQ_GPIO, &ar71xx_gpio_irqaction);
@@ -151,13 +149,12 @@ static void ar71xx_misc_irq_dispatch(voi
spurious_interrupt();
}
-static void ar71xx_misc_irq_unmask(unsigned int irq)
+static void ar71xx_misc_irq_unmask(struct irq_data *d)
{
+ unsigned int irq = d->irq - AR71XX_MISC_IRQ_BASE;
void __iomem *base = ar71xx_reset_base;
u32 t;
- irq -= AR71XX_MISC_IRQ_BASE;
-
t = __raw_readl(base + AR71XX_RESET_REG_MISC_INT_ENABLE);
__raw_writel(t | (1 << irq), base + AR71XX_RESET_REG_MISC_INT_ENABLE);
@@ -165,13 +162,12 @@ static void ar71xx_misc_irq_unmask(unsig
(void) __raw_readl(base + AR71XX_RESET_REG_MISC_INT_ENABLE);
}
-static void ar71xx_misc_irq_mask(unsigned int irq)
+static void ar71xx_misc_irq_mask(struct irq_data *d)
{
+ unsigned int irq = d->irq - AR71XX_MISC_IRQ_BASE;
void __iomem *base = ar71xx_reset_base;
u32 t;
- irq -= AR71XX_MISC_IRQ_BASE;
-
t = __raw_readl(base + AR71XX_RESET_REG_MISC_INT_ENABLE);
__raw_writel(t & ~(1 << irq), base + AR71XX_RESET_REG_MISC_INT_ENABLE);
@@ -179,13 +175,12 @@ static void ar71xx_misc_irq_mask(unsigne
(void) __raw_readl(base + AR71XX_RESET_REG_MISC_INT_ENABLE);
}
-static void ar724x_misc_irq_ack(unsigned int irq)
+static void ar724x_misc_irq_ack(struct irq_data *d)
{
+ unsigned int irq = d->irq - AR71XX_MISC_IRQ_BASE;
void __iomem *base = ar71xx_reset_base;
u32 t;
- irq -= AR71XX_MISC_IRQ_BASE;
-
t = __raw_readl(base + AR71XX_RESET_REG_MISC_INT_STATUS);
__raw_writel(t & ~(1 << irq), base + AR71XX_RESET_REG_MISC_INT_STATUS);
@@ -195,8 +190,8 @@ static void ar724x_misc_irq_ack(unsigned
static struct irq_chip ar71xx_misc_irq_chip = {
.name = "AR71XX MISC",
- .unmask = ar71xx_misc_irq_unmask,
- .mask = ar71xx_misc_irq_mask,
+ .irq_unmask = ar71xx_misc_irq_unmask,
+ .irq_mask = ar71xx_misc_irq_mask,
};
static struct irqaction ar71xx_misc_irqaction = {
@@ -221,16 +216,16 @@ static void __init ar71xx_misc_irq_init(
case AR71XX_SOC_AR9341:
case AR71XX_SOC_AR9342:
case AR71XX_SOC_AR9344:
- ar71xx_misc_irq_chip.ack = ar724x_misc_irq_ack;
+ ar71xx_misc_irq_chip.irq_ack = ar724x_misc_irq_ack;
break;
default:
- ar71xx_misc_irq_chip.mask_ack = ar71xx_misc_irq_mask;
+ ar71xx_misc_irq_chip.irq_mask_ack = ar71xx_misc_irq_mask;
break;
}
for (i = AR71XX_MISC_IRQ_BASE;
i < AR71XX_MISC_IRQ_BASE + AR71XX_MISC_IRQ_COUNT; i++)
- set_irq_chip_and_handler(i, &ar71xx_misc_irq_chip,
+ irq_set_chip_and_handler(i, &ar71xx_misc_irq_chip,
handle_level_irq);
setup_irq(AR71XX_CPU_IRQ_MISC, &ar71xx_misc_irqaction);
--- a/arch/mips/pci/pci-ar71xx.c
+++ b/arch/mips/pci/pci-ar71xx.c
@@ -329,13 +329,12 @@ static void ar71xx_pci_irq_handler(unsig
spurious_interrupt();
}
-static void ar71xx_pci_irq_unmask(unsigned int irq)
+static void ar71xx_pci_irq_unmask(struct irq_data *d)
{
+ unsigned int irq = d->irq - AR71XX_PCI_IRQ_BASE;
void __iomem *base = ar71xx_reset_base;
u32 t;
- irq -= AR71XX_PCI_IRQ_BASE;
-
t = __raw_readl(base + AR71XX_RESET_REG_PCI_INT_ENABLE);
__raw_writel(t | (1 << irq), base + AR71XX_RESET_REG_PCI_INT_ENABLE);
@@ -343,13 +342,12 @@ static void ar71xx_pci_irq_unmask(unsign
(void) __raw_readl(base + AR71XX_RESET_REG_PCI_INT_ENABLE);
}
-static void ar71xx_pci_irq_mask(unsigned int irq)
+static void ar71xx_pci_irq_mask(struct irq_data *d)
{
+ unsigned int irq = d->irq - AR71XX_PCI_IRQ_BASE;
void __iomem *base = ar71xx_reset_base;
u32 t;
- irq -= AR71XX_PCI_IRQ_BASE;
-
t = __raw_readl(base + AR71XX_RESET_REG_PCI_INT_ENABLE);
__raw_writel(t & ~(1 << irq), base + AR71XX_RESET_REG_PCI_INT_ENABLE);
@@ -359,9 +357,9 @@ static void ar71xx_pci_irq_mask(unsigned
static struct irq_chip ar71xx_pci_irq_chip = {
.name = "AR71XX PCI ",
- .mask = ar71xx_pci_irq_mask,
- .unmask = ar71xx_pci_irq_unmask,
- .mask_ack = ar71xx_pci_irq_mask,
+ .irq_mask = ar71xx_pci_irq_mask,
+ .irq_unmask = ar71xx_pci_irq_unmask,
+ .irq_mask_ack = ar71xx_pci_irq_mask,
};
static void __init ar71xx_pci_irq_init(void)
@@ -374,10 +372,10 @@ static void __init ar71xx_pci_irq_init(v
for (i = AR71XX_PCI_IRQ_BASE;
i < AR71XX_PCI_IRQ_BASE + AR71XX_PCI_IRQ_COUNT; i++)
- set_irq_chip_and_handler(i, &ar71xx_pci_irq_chip,
+ irq_set_chip_and_handler(i, &ar71xx_pci_irq_chip,
handle_level_irq);
- set_irq_chained_handler(AR71XX_CPU_IRQ_IP2, ar71xx_pci_irq_handler);
+ irq_set_chained_handler(AR71XX_CPU_IRQ_IP2, ar71xx_pci_irq_handler);
}
int __init ar71xx_pcibios_init(void)
--- a/arch/mips/pci/pci-ar724x.c
+++ b/arch/mips/pci/pci-ar724x.c
@@ -280,15 +280,13 @@ static void ar724x_pci_irq_handler(unsig
spurious_interrupt();
}
-static void ar724x_pci_irq_unmask(unsigned int irq)
+static void ar724x_pci_irq_unmask(struct irq_data *d)
{
void __iomem *base = ar724x_pci_ctrl_base;
u32 t;
- switch (irq) {
+ switch (d->irq) {
case AR71XX_PCI_IRQ_DEV0:
- irq -= AR71XX_PCI_IRQ_BASE;
-
t = __raw_readl(base + AR724X_PCI_REG_INT_MASK);
__raw_writel(t | AR724X_PCI_INT_DEV0,
base + AR724X_PCI_REG_INT_MASK);
@@ -297,15 +295,13 @@ static void ar724x_pci_irq_unmask(unsign
}
}
-static void ar724x_pci_irq_mask(unsigned int irq)
+static void ar724x_pci_irq_mask(struct irq_data *d)
{
void __iomem *base = ar724x_pci_ctrl_base;
u32 t;
- switch (irq) {
+ switch (d->irq) {
case AR71XX_PCI_IRQ_DEV0:
- irq -= AR71XX_PCI_IRQ_BASE;
-
t = __raw_readl(base + AR724X_PCI_REG_INT_MASK);
__raw_writel(t & ~AR724X_PCI_INT_DEV0,
base + AR724X_PCI_REG_INT_MASK);
@@ -324,9 +320,9 @@ static void ar724x_pci_irq_mask(unsigned
static struct irq_chip ar724x_pci_irq_chip = {
.name = "AR724X PCI ",
- .mask = ar724x_pci_irq_mask,
- .unmask = ar724x_pci_irq_unmask,
- .mask_ack = ar724x_pci_irq_mask,
+ .irq_mask = ar724x_pci_irq_mask,
+ .irq_unmask = ar724x_pci_irq_unmask,
+ .irq_mask_ack = ar724x_pci_irq_mask,
};
static void __init ar724x_pci_irq_init(void)
@@ -346,10 +342,10 @@ static void __init ar724x_pci_irq_init(v
for (i = AR71XX_PCI_IRQ_BASE;
i < AR71XX_PCI_IRQ_BASE + AR71XX_PCI_IRQ_COUNT; i++)
- set_irq_chip_and_handler(i, &ar724x_pci_irq_chip,
+ irq_set_chip_and_handler(i, &ar724x_pci_irq_chip,
handle_level_irq);
- set_irq_chained_handler(AR71XX_CPU_IRQ_IP2, ar724x_pci_irq_handler);
+ irq_set_chained_handler(AR71XX_CPU_IRQ_IP2, ar724x_pci_irq_handler);
}
int __init ar724x_pcibios_init(void)