Commit 8a03d9a4 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge branch 'for-linus' of git://www.atmel.no/~hskinnemoen/linux/kernel/avr32 

* 'for-linus' of git://www.atmel.no/~hskinnemoen/linux/kernel/avr32:
  [AVR32] Use per-controller spi_board_info structures
  [AVR32] Warn, don't BUG if clk_disable is called too many times
  [AVR32] Make sure all genclocks have a parent
  [AVR32] Remove unnecessary sys_nfsservctl conditional
  [AVR32] Wire up the SysV IPC calls properly
  [AVR32] Define ioremap_nocache, ioport_map and ioport_unmap
  [AVR32] Fix prototypes for __raw_writesb and friends
parents f8abea8f 41d8ca45

arch/avr32/boards/atstk1000/atstk1002.c

+3 −6
Original line number Diff line number Diff line
@@ -8,7 +8,6 @@ 
 * published by the Free Software Foundation.

 */

#include <linux/clk.h>

#include <linux/device.h>

#include <linux/etherdevice.h>

#include <linux/init.h>

#include <linux/kernel.h>
@@ -36,12 +35,11 @@ static struct eth_addr __initdata hw_addr[2]; 
static struct eth_platform_data __initdata eth_data[2];

extern struct lcdc_platform_data atstk1000_fb0_data;



static struct spi_board_info spi_board_info[] __initdata = {

static struct spi_board_info spi0_board_info[] __initdata = {

	{

		/* QVGA display */

		.modalias	= "ltv350qv",

		.controller_data = (void *)GPIO_PIN_PA(4),

		.max_speed_hz	= 16000000,

		.bus_num	= 0,

		.chip_select	= 1,

	},

};
@@ -149,8 +147,7 @@ static int __init atstk1002_init(void) 


	set_hw_addr(at32_add_device_eth(0, &eth_data[0]));



	spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info));

	at32_add_device_spi(0);

	at32_add_device_spi(0, spi0_board_info, ARRAY_SIZE(spi0_board_info));

	at32_add_device_lcdc(0, &atstk1000_fb0_data);



	return 0;

arch/avr32/kernel/syscall_table.S

+13 −9
Original line number Diff line number Diff line
@@ -8,14 +8,6 @@ 
 * published by the Free Software Foundation.

 */



#if !defined(CONFIG_NFSD) && !defined(CONFIG_NFSD_MODULE)

#define sys_nfsservctl sys_ni_syscall

#endif



#if !defined(CONFIG_SYSV_IPC)

# define sys_ipc	sys_ni_syscall

#endif



	.section .rodata,"a",@progbits

	.type	sys_call_table,@object

	.global	sys_call_table
@@ -129,7 +121,7 @@ sys_call_table: 
	.long	sys_getitimer		/* 105 */

	.long	sys_swapoff

	.long	sys_sysinfo

	.long	sys_ipc

	.long	sys_ni_syscall		/* was sys_ipc briefly */

	.long	sys_sendfile

	.long	sys_setdomainname	/* 110 */

	.long	sys_newuname
@@ -287,4 +279,16 @@ sys_call_table: 
	.long	sys_tee

	.long	sys_vmsplice

	.long	__sys_epoll_pwait	/* 265 */

	.long	sys_msgget

	.long	sys_msgsnd

	.long	sys_msgrcv

	.long	sys_msgctl

	.long	sys_semget		/* 270 */

	.long	sys_semop

	.long	sys_semctl

	.long	sys_semtimedop

	.long	sys_shmat

	.long	sys_shmget		/* 275 */

	.long	sys_shmdt

	.long	sys_shmctl

	.long	sys_ni_syscall		/* r8 is saturated at nr_syscalls */

arch/avr32/mach-at32ap/at32ap7000.c

+111 −33
Original line number Diff line number Diff line
@@ -8,6 +8,7 @@ 
#include <linux/clk.h>

#include <linux/init.h>

#include <linux/platform_device.h>

#include <linux/spi/spi.h>



#include <asm/io.h>
@@ -310,8 +311,6 @@ static void genclk_mode(struct clk *clk, int enabled) 
{

	u32 control;



	BUG_ON(clk->index > 7);



	control = sm_readl(&system_manager, PM_GCCTRL + 4 * clk->index);

	if (enabled)

		control |= SM_BIT(CEN);
@@ -325,11 +324,6 @@ static unsigned long genclk_get_rate(struct clk *clk) 
	u32 control;

	unsigned long div = 1;



	BUG_ON(clk->index > 7);



	if (!clk->parent)

		return 0;



	control = sm_readl(&system_manager, PM_GCCTRL + 4 * clk->index);

	if (control & SM_BIT(DIVEN))

		div = 2 * (SM_BFEXT(DIV, control) + 1);
@@ -342,11 +336,6 @@ static long genclk_set_rate(struct clk *clk, unsigned long rate, int apply) 
	u32 control;

	unsigned long parent_rate, actual_rate, div;



	BUG_ON(clk->index > 7);



	if (!clk->parent)

		return 0;



	parent_rate = clk->parent->get_rate(clk->parent);

	control = sm_readl(&system_manager, PM_GCCTRL + 4 * clk->index);
@@ -373,11 +362,8 @@ int genclk_set_parent(struct clk *clk, struct clk *parent) 
{

	u32 control;



	BUG_ON(clk->index > 7);



	printk("clk %s: new parent %s (was %s)\n",

	       clk->name, parent->name,

	       clk->parent ? clk->parent->name : "(null)");

	       clk->name, parent->name, clk->parent->name);



	control = sm_readl(&system_manager, PM_GCCTRL + 4 * clk->index);
@@ -399,6 +385,22 @@ int genclk_set_parent(struct clk *clk, struct clk *parent) 
	return 0;

}



static void __init genclk_init_parent(struct clk *clk)

{

	u32 control;

	struct clk *parent;



	BUG_ON(clk->index > 7);



	control = sm_readl(&system_manager, PM_GCCTRL + 4 * clk->index);

	if (control & SM_BIT(OSCSEL))

		parent = (control & SM_BIT(PLLSEL)) ? &pll1 : &osc1;

	else

		parent = (control & SM_BIT(PLLSEL)) ? &pll0 : &osc0;



	clk->parent = parent;

}



/* --------------------------------------------------------------------

 *  System peripherals

 * -------------------------------------------------------------------- */
@@ -750,8 +752,41 @@ static struct resource atmel_spi1_resource[] = { 
DEFINE_DEV(atmel_spi, 1);

DEV_CLK(spi_clk, atmel_spi1, pba, 1);



struct platform_device *__init at32_add_device_spi(unsigned int id)

static void

at32_spi_setup_slaves(unsigned int bus_num, struct spi_board_info *b,

		      unsigned int n, const u8 *pins)

{

	unsigned int pin, mode;



	for (; n; n--, b++) {

		b->bus_num = bus_num;

		if (b->chip_select >= 4)

			continue;

		pin = (unsigned)b->controller_data;

		if (!pin) {

			pin = pins[b->chip_select];

			b->controller_data = (void *)pin;

		}

		mode = AT32_GPIOF_OUTPUT;

		if (!(b->mode & SPI_CS_HIGH))

			mode |= AT32_GPIOF_HIGH;

		at32_select_gpio(pin, mode);

	}

}



struct platform_device *__init

at32_add_device_spi(unsigned int id, struct spi_board_info *b, unsigned int n)

{

	/*

	 * Manage the chipselects as GPIOs, normally using the same pins

	 * the SPI controller expects; but boards can use other pins.

	 */

	static u8 __initdata spi0_pins[] =

		{ GPIO_PIN_PA(3), GPIO_PIN_PA(4),

		  GPIO_PIN_PA(5), GPIO_PIN_PA(20), };

	static u8 __initdata spi1_pins[] =

		{ GPIO_PIN_PB(2), GPIO_PIN_PB(3),

		  GPIO_PIN_PB(4), GPIO_PIN_PA(27), };

	struct platform_device *pdev;



	switch (id) {
@@ -760,14 +795,7 @@ struct platform_device *__init at32_add_device_spi(unsigned int id) 
		select_peripheral(PA(0),  PERIPH_A, 0);	/* MISO	 */

		select_peripheral(PA(1),  PERIPH_A, 0);	/* MOSI	 */

		select_peripheral(PA(2),  PERIPH_A, 0);	/* SCK	 */



		/* NPCS[2:0] */

		at32_select_gpio(GPIO_PIN_PA(3),

				 AT32_GPIOF_OUTPUT | AT32_GPIOF_HIGH);

		at32_select_gpio(GPIO_PIN_PA(4),

				 AT32_GPIOF_OUTPUT | AT32_GPIOF_HIGH);

		at32_select_gpio(GPIO_PIN_PA(5),

				 AT32_GPIOF_OUTPUT | AT32_GPIOF_HIGH);

		at32_spi_setup_slaves(0, b, n, spi0_pins);

		break;



	case 1:
@@ -775,20 +803,14 @@ struct platform_device *__init at32_add_device_spi(unsigned int id) 
		select_peripheral(PB(0),  PERIPH_B, 0);	/* MISO  */

		select_peripheral(PB(1),  PERIPH_B, 0);	/* MOSI  */

		select_peripheral(PB(5),  PERIPH_B, 0);	/* SCK   */



		/* NPCS[2:0] */

		at32_select_gpio(GPIO_PIN_PB(2),

				 AT32_GPIOF_OUTPUT | AT32_GPIOF_HIGH);

		at32_select_gpio(GPIO_PIN_PB(3),

				 AT32_GPIOF_OUTPUT | AT32_GPIOF_HIGH);

		at32_select_gpio(GPIO_PIN_PB(4),

				 AT32_GPIOF_OUTPUT | AT32_GPIOF_HIGH);

		at32_spi_setup_slaves(1, b, n, spi1_pins);

		break;



	default:

		return NULL;

	}



	spi_register_board_info(b, n);

	platform_device_register(pdev);

	return pdev;

}
@@ -872,6 +894,50 @@ at32_add_device_lcdc(unsigned int id, struct lcdc_platform_data *data) 
	return pdev;

}



/* --------------------------------------------------------------------

 *  GCLK

 * -------------------------------------------------------------------- */

static struct clk gclk0 = {

	.name		= "gclk0",

	.mode		= genclk_mode,

	.get_rate	= genclk_get_rate,

	.set_rate	= genclk_set_rate,

	.set_parent	= genclk_set_parent,

	.index		= 0,

};

static struct clk gclk1 = {

	.name		= "gclk1",

	.mode		= genclk_mode,

	.get_rate	= genclk_get_rate,

	.set_rate	= genclk_set_rate,

	.set_parent	= genclk_set_parent,

	.index		= 1,

};

static struct clk gclk2 = {

	.name		= "gclk2",

	.mode		= genclk_mode,

	.get_rate	= genclk_get_rate,

	.set_rate	= genclk_set_rate,

	.set_parent	= genclk_set_parent,

	.index		= 2,

};

static struct clk gclk3 = {

	.name		= "gclk3",

	.mode		= genclk_mode,

	.get_rate	= genclk_get_rate,

	.set_rate	= genclk_set_rate,

	.set_parent	= genclk_set_parent,

	.index		= 3,

};

static struct clk gclk4 = {

	.name		= "gclk4",

	.mode		= genclk_mode,

	.get_rate	= genclk_get_rate,

	.set_rate	= genclk_set_rate,

	.set_parent	= genclk_set_parent,

	.index		= 4,

};



struct clk *at32_clock_list[] = {

	&osc32k,

	&osc0,
@@ -908,6 +974,11 @@ struct clk *at32_clock_list[] = { 
	&atmel_spi1_spi_clk,

	&lcdc0_hclk,

	&lcdc0_pixclk,

	&gclk0,

	&gclk1,

	&gclk2,

	&gclk3,

	&gclk4,

};

unsigned int at32_nr_clocks = ARRAY_SIZE(at32_clock_list);
@@ -936,6 +1007,13 @@ void __init at32_clock_init(void) 
	if (sm_readl(sm, PM_PLL1) & SM_BIT(PLLOSC))

		pll1.parent = &osc1;



	genclk_init_parent(&gclk0);

	genclk_init_parent(&gclk1);

	genclk_init_parent(&gclk2);

	genclk_init_parent(&gclk3);

	genclk_init_parent(&gclk4);

	genclk_init_parent(&lcdc0_pixclk);



	/*

	 * Turn on all clocks that have at least one user already, and

	 * turn off everything else. We only do this for module

arch/avr32/mach-at32ap/clock.c

+5 −1
Original line number Diff line number Diff line
@@ -63,7 +63,11 @@ EXPORT_SYMBOL(clk_enable); 


static void __clk_disable(struct clk *clk)

{

	BUG_ON(clk->users == 0);

	if (clk->users == 0) {

		printk(KERN_ERR "%s: mismatched disable\n", clk->name);

		WARN_ON(1);

		return;

	}



	if (--clk->users == 0 && clk->mode)

		clk->mode(clk, 0);

include/asm-avr32/arch-at32ap/board.h

+3 −1
Original line number Diff line number Diff line
@@ -26,7 +26,9 @@ struct eth_platform_data { 
struct platform_device *

at32_add_device_eth(unsigned int id, struct eth_platform_data *data);



struct platform_device *at32_add_device_spi(unsigned int id);

struct spi_board_info;

struct platform_device *

at32_add_device_spi(unsigned int id, struct spi_board_info *b, unsigned int n);



struct lcdc_platform_data {

	unsigned long fbmem_start;

CRA Git | Maintained and supported by SUSTech CRA and CCSE