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linux/arch/arm/mach-iop32x/n2100.c
Tejun Heo 5a0e3ad6af include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 
percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files.  percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.

percpu.h -> slab.h dependency is about to be removed.  Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability.  As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.

  http://userweb.kernel.org/~tj/misc/slabh-sweep.py

The script does the followings.

* Scan files for gfp and slab usages and update includes such that
  only the necessary includes are there.  ie. if only gfp is used,
  gfp.h, if slab is used, slab.h.

* When the script inserts a new include, it looks at the include
  blocks and try to put the new include such that its order conforms
  to its surrounding.  It's put in the include block which contains
  core kernel includes, in the same order that the rest are ordered -
  alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
  doesn't seem to be any matching order.

* If the script can't find a place to put a new include (mostly
  because the file doesn't have fitting include block), it prints out
  an error message indicating which .h file needs to be added to the
  file.

The conversion was done in the following steps.

1. The initial automatic conversion of all .c files updated slightly
   over 4000 files, deleting around 700 includes and adding ~480 gfp.h
   and ~3000 slab.h inclusions.  The script emitted errors for ~400
   files.

2. Each error was manually checked.  Some didn't need the inclusion,
   some needed manual addition while adding it to implementation .h or
   embedding .c file was more appropriate for others.  This step added
   inclusions to around 150 files.

3. The script was run again and the output was compared to the edits
   from #2 to make sure no file was left behind.

4. Several build tests were done and a couple of problems were fixed.
   e.g. lib/decompress_*.c used malloc/free() wrappers around slab
   APIs requiring slab.h to be added manually.

5. The script was run on all .h files but without automatically
   editing them as sprinkling gfp.h and slab.h inclusions around .h
   files could easily lead to inclusion dependency hell.  Most gfp.h
   inclusion directives were ignored as stuff from gfp.h was usually
   wildly available and often used in preprocessor macros.  Each
   slab.h inclusion directive was examined and added manually as
   necessary.

6. percpu.h was updated not to include slab.h.

7. Build test were done on the following configurations and failures
   were fixed.  CONFIG_GCOV_KERNEL was turned off for all tests (as my
   distributed build env didn't work with gcov compiles) and a few
   more options had to be turned off depending on archs to make things
   build (like ipr on powerpc/64 which failed due to missing writeq).

   * x86 and x86_64 UP and SMP allmodconfig and a custom test config.
   * powerpc and powerpc64 SMP allmodconfig
   * sparc and sparc64 SMP allmodconfig
   * ia64 SMP allmodconfig
   * s390 SMP allmodconfig
   * alpha SMP allmodconfig
   * um on x86_64 SMP allmodconfig

8. percpu.h modifications were reverted so that it could be applied as
   a separate patch and serve as bisection point.

Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.

Signed-off-by: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-30 22:02:32 +09:00

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/*
* arch/arm/mach-iop32x/n2100.c
*
* Board support code for the Thecus N2100 platform.
*
* Author: Rory Bolt <rorybolt@pacbell.net>
* Copyright (C) 2002 Rory Bolt
* Copyright 2003 (c) MontaVista, Software, Inc.
* Copyright (C) 2004 Intel Corp.
*
* 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/mm.h>
#include <linux/init.h>
#include <linux/f75375s.h>
#include <linux/leds-pca9532.h>
#include <linux/delay.h>
#include <linux/kernel.h>
#include <linux/pci.h>
#include <linux/pm.h>
#include <linux/string.h>
#include <linux/serial_core.h>
#include <linux/serial_8250.h>
#include <linux/mtd/physmap.h>
#include <linux/i2c.h>
#include <linux/platform_device.h>
#include <linux/reboot.h>
#include <linux/io.h>
#include <mach/hardware.h>
#include <asm/irq.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/pci.h>
#include <asm/mach/time.h>
#include <asm/mach-types.h>
#include <asm/page.h>
#include <asm/pgtable.h>
#include <mach/time.h>
/*
* N2100 timer tick configuration.
*/
static void __init n2100_timer_init(void)
{
/* 33.000 MHz crystal. */
iop_init_time(198000000);
}
static struct sys_timer n2100_timer = {
.init = n2100_timer_init,
};
/*
* N2100 I/O.
*/
static struct map_desc n2100_io_desc[] __initdata = {
{ /* on-board devices */
.virtual = N2100_UART,
.pfn = __phys_to_pfn(N2100_UART),
.length = 0x00100000,
.type = MT_DEVICE
},
};
void __init n2100_map_io(void)
{
iop3xx_map_io();
iotable_init(n2100_io_desc, ARRAY_SIZE(n2100_io_desc));
}
/*
* N2100 PCI.
*/
static int __init
n2100_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
{
int irq;
if (PCI_SLOT(dev->devfn) == 1) {
/* RTL8110SB #1 */
irq = IRQ_IOP32X_XINT0;
} else if (PCI_SLOT(dev->devfn) == 2) {
/* RTL8110SB #2 */
irq = IRQ_IOP32X_XINT3;
} else if (PCI_SLOT(dev->devfn) == 3) {
/* Sil3512 */
irq = IRQ_IOP32X_XINT2;
} else if (PCI_SLOT(dev->devfn) == 4 && pin == 1) {
/* VT6212 INTA */
irq = IRQ_IOP32X_XINT1;
} else if (PCI_SLOT(dev->devfn) == 4 && pin == 2) {
/* VT6212 INTB */
irq = IRQ_IOP32X_XINT0;
} else if (PCI_SLOT(dev->devfn) == 4 && pin == 3) {
/* VT6212 INTC */
irq = IRQ_IOP32X_XINT2;
} else if (PCI_SLOT(dev->devfn) == 5) {
/* Mini-PCI slot */
irq = IRQ_IOP32X_XINT3;
} else {
printk(KERN_ERR "n2100_pci_map_irq() called for unknown "
"device PCI:%d:%d:%d\n", dev->bus->number,
PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn));
irq = -1;
}
return irq;
}
static struct hw_pci n2100_pci __initdata = {
.swizzle = pci_std_swizzle,
.nr_controllers = 1,
.setup = iop3xx_pci_setup,
.preinit = iop3xx_pci_preinit,
.scan = iop3xx_pci_scan_bus,
.map_irq = n2100_pci_map_irq,
};
/*
* Both r8169 chips on the n2100 exhibit PCI parity problems. Set
* the ->broken_parity_status flag for both ports so that the r8169
* driver knows it should ignore error interrupts.
*/
static void n2100_fixup_r8169(struct pci_dev *dev)
{
if (dev->bus->number == 0 &&
(dev->devfn == PCI_DEVFN(1, 0) ||
dev->devfn == PCI_DEVFN(2, 0)))
dev->broken_parity_status = 1;
}
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_REALTEK, PCI_ANY_ID, n2100_fixup_r8169);
static int __init n2100_pci_init(void)
{
if (machine_is_n2100())
pci_common_init(&n2100_pci);
return 0;
}
subsys_initcall(n2100_pci_init);
/*
* N2100 machine initialisation.
*/
static struct physmap_flash_data n2100_flash_data = {
.width = 2,
};
static struct resource n2100_flash_resource = {
.start = 0xf0000000,
.end = 0xf0ffffff,
.flags = IORESOURCE_MEM,
};
static struct platform_device n2100_flash_device = {
.name = "physmap-flash",
.id = 0,
.dev = {
.platform_data = &n2100_flash_data,
},
.num_resources = 1,
.resource = &n2100_flash_resource,
};
static struct plat_serial8250_port n2100_serial_port[] = {
{
.mapbase = N2100_UART,
.membase = (char *)N2100_UART,
.irq = 0,
.flags = UPF_SKIP_TEST,
.iotype = UPIO_MEM,
.regshift = 0,
.uartclk = 1843200,
},
{ },
};
static struct resource n2100_uart_resource = {
.start = N2100_UART,
.end = N2100_UART + 7,
.flags = IORESOURCE_MEM,
};
static struct platform_device n2100_serial_device = {
.name = "serial8250",
.id = PLAT8250_DEV_PLATFORM,
.dev = {
.platform_data = n2100_serial_port,
},
.num_resources = 1,
.resource = &n2100_uart_resource,
};
static struct f75375s_platform_data n2100_f75375s = {
.pwm = { 255, 255 },
.pwm_enable = { 0, 0 },
};
static struct pca9532_platform_data n2100_leds = {
.leds = {
{ .name = "n2100:red:satafail0",
.state = PCA9532_OFF,
.type = PCA9532_TYPE_LED,
},
{ .name = "n2100:red:satafail1",
.state = PCA9532_OFF,
.type = PCA9532_TYPE_LED,
},
{ .name = "n2100:blue:usb",
.state = PCA9532_OFF,
.type = PCA9532_TYPE_LED,
},
{ .type = PCA9532_TYPE_NONE },
{ .type = PCA9532_TYPE_NONE },
{ .type = PCA9532_TYPE_NONE },
{ .type = PCA9532_TYPE_NONE },
{ .name = "n2100:red:usb",
.state = PCA9532_OFF,
.type = PCA9532_TYPE_LED,
},
{ .type = PCA9532_TYPE_NONE }, /* power OFF gpio */
{ .type = PCA9532_TYPE_NONE }, /* reset gpio */
{ .type = PCA9532_TYPE_NONE },
{ .type = PCA9532_TYPE_NONE },
{ .type = PCA9532_TYPE_NONE },
{ .name = "n2100:orange:system",
.state = PCA9532_OFF,
.type = PCA9532_TYPE_LED,
},
{ .name = "n2100:red:system",
.state = PCA9532_OFF,
.type = PCA9532_TYPE_LED,
},
{ .name = "N2100 beeper" ,
.state = PCA9532_OFF,
.type = PCA9532_TYPE_N2100_BEEP,
},
},
.psc = { 0, 0 },
.pwm = { 0, 0 },
};
static struct i2c_board_info __initdata n2100_i2c_devices[] = {
{
I2C_BOARD_INFO("rs5c372b", 0x32),
},
{
I2C_BOARD_INFO("f75375", 0x2e),
.platform_data = &n2100_f75375s,
},
{
I2C_BOARD_INFO("pca9532", 0x60),
.platform_data = &n2100_leds,
},
};
/*
* Pull PCA9532 GPIO #8 low to power off the machine.
*/
static void n2100_power_off(void)
{
local_irq_disable();
/* Start condition, I2C address of PCA9532, write transaction. */
*IOP3XX_IDBR0 = 0xc0;
*IOP3XX_ICR0 = 0xe9;
mdelay(1);
/* Write address 0x08. */
*IOP3XX_IDBR0 = 0x08;
*IOP3XX_ICR0 = 0xe8;
mdelay(1);
/* Write data 0x01, stop condition. */
*IOP3XX_IDBR0 = 0x01;
*IOP3XX_ICR0 = 0xea;
while (1)
;
}
static struct timer_list power_button_poll_timer;
static void power_button_poll(unsigned long dummy)
{
if (gpio_line_get(N2100_POWER_BUTTON) == 0) {
ctrl_alt_del();
return;
}
power_button_poll_timer.expires = jiffies + (HZ / 10);
add_timer(&power_button_poll_timer);
}
static void __init n2100_init_machine(void)
{
platform_device_register(&iop3xx_i2c0_device);
platform_device_register(&n2100_flash_device);
platform_device_register(&n2100_serial_device);
platform_device_register(&iop3xx_dma_0_channel);
platform_device_register(&iop3xx_dma_1_channel);
i2c_register_board_info(0, n2100_i2c_devices,
ARRAY_SIZE(n2100_i2c_devices));
pm_power_off = n2100_power_off;
init_timer(&power_button_poll_timer);
power_button_poll_timer.function = power_button_poll;
power_button_poll_timer.expires = jiffies + (HZ / 10);
add_timer(&power_button_poll_timer);
}
MACHINE_START(N2100, "Thecus N2100")
/* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */
.phys_io = N2100_UART,
.io_pg_offst = ((N2100_UART) >> 18) & 0xfffc,
.boot_params = 0xa0000100,
.map_io = n2100_map_io,
.init_irq = iop32x_init_irq,
.timer = &n2100_timer,
.init_machine = n2100_init_machine,
MACHINE_END
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