Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6:
[AVR32] Define mmiowb()
[AVR32] Fix bogus pte_page() definition
[AVR32] Simplify pte_alloc_one{,_kernel}
include/asm-avr32/pgalloc.h: kmalloc + memset conversion to kcalloc
[AVR32] Wire up i2c-gpio on the ATNGW100 board
[AVR32] leds-gpio for stk1000
This commit is contained in:
Linus Torvalds
commit
585eb6daa4
6 changed files with 112 additions and 30 deletions
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@ -9,6 +9,7 @@
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*/
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#include <linux/clk.h>
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#include <linux/etherdevice.h>
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#include <linux/i2c-gpio.h>
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#include <linux/init.h>
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#include <linux/linkage.h>
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#include <linux/platform_device.h>
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@ -123,6 +124,19 @@ static struct platform_device ngw_gpio_leds = {
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}
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};
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static struct i2c_gpio_platform_data i2c_gpio_data = {
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.sda_pin = GPIO_PIN_PA(6),
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.scl_pin = GPIO_PIN_PA(7),
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};
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static struct platform_device i2c_gpio_device = {
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.name = "i2c-gpio",
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.id = 0,
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.dev = {
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.platform_data = &i2c_gpio_data,
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},
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};
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static int __init atngw100_init(void)
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{
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unsigned i;
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@ -147,6 +161,10 @@ static int __init atngw100_init(void)
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}
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platform_device_register(&ngw_gpio_leds);
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at32_select_gpio(i2c_gpio_data.sda_pin, 0);
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at32_select_gpio(i2c_gpio_data.scl_pin, 0);
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platform_device_register(&i2c_gpio_device);
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return 0;
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}
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postcore_initcall(atngw100_init);
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@ -50,4 +50,30 @@ config BOARD_ATSTK1002_SPI1
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GPIO lines and accessed through the J1 jumper block. Say "y"
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here to configure that SPI controller.
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config BOARD_ATSTK1002_J2_LED
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bool
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default BOARD_ATSTK1002_J2_LED8 || BOARD_ATSTK1002_J2_RGB
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choice
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prompt "LEDs connected to J2:"
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depends on LEDS_GPIO && !BOARD_ATSTK1002_SW4_CUSTOM
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optional
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help
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Select this if you have jumpered the J2 jumper block to the
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LED0..LED7 amber leds, or to the RGB leds, using a ten-pin
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IDC cable. A default "heartbeat" trigger is provided, but
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you can of course override this.
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config BOARD_ATSTK1002_J2_LED8
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bool "LED0..LED7"
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help
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Select this if J2 is jumpered to LED0..LED7 amber leds.
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config BOARD_ATSTK1002_J2_RGB
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bool "RGB leds"
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help
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Select this if J2 is jumpered to the RGB leds.
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endchoice
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endif # stk 1002
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@ -11,6 +11,7 @@
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#include <linux/etherdevice.h>
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#include <linux/init.h>
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#include <linux/kernel.h>
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#include <linux/leds.h>
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#include <linux/platform_device.h>
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#include <linux/string.h>
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#include <linux/types.h>
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@ -120,6 +121,65 @@ static void __init set_hw_addr(struct platform_device *pdev)
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clk_put(pclk);
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}
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#ifdef CONFIG_BOARD_ATSTK1002_J2_LED
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static struct gpio_led stk_j2_led[] = {
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#ifdef CONFIG_BOARD_ATSTK1002_J2_LED8
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#define LEDSTRING "J2 jumpered to LED8"
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{ .name = "led0:amber", .gpio = GPIO_PIN_PB( 8), },
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{ .name = "led1:amber", .gpio = GPIO_PIN_PB( 9), },
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{ .name = "led2:amber", .gpio = GPIO_PIN_PB(10), },
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{ .name = "led3:amber", .gpio = GPIO_PIN_PB(13), },
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{ .name = "led4:amber", .gpio = GPIO_PIN_PB(14), },
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{ .name = "led5:amber", .gpio = GPIO_PIN_PB(15), },
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{ .name = "led6:amber", .gpio = GPIO_PIN_PB(16), },
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{ .name = "led7:amber", .gpio = GPIO_PIN_PB(30),
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.default_trigger = "heartbeat", },
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#else /* RGB */
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#define LEDSTRING "J2 jumpered to RGB LEDs"
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{ .name = "r1:red", .gpio = GPIO_PIN_PB( 8), },
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{ .name = "g1:green", .gpio = GPIO_PIN_PB(10), },
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{ .name = "b1:blue", .gpio = GPIO_PIN_PB(14), },
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{ .name = "r2:red", .gpio = GPIO_PIN_PB( 9),
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.default_trigger = "heartbeat", },
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{ .name = "g2:green", .gpio = GPIO_PIN_PB(13), },
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{ .name = "b2:blue", .gpio = GPIO_PIN_PB(15),
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.default_trigger = "heartbeat", },
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/* PB16, PB30 unused */
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#endif
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};
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static struct gpio_led_platform_data stk_j2_led_data = {
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.num_leds = ARRAY_SIZE(stk_j2_led),
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.leds = stk_j2_led,
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};
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static struct platform_device stk_j2_led_dev = {
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.name = "leds-gpio",
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.id = 2, /* gpio block J2 */
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.dev = {
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.platform_data = &stk_j2_led_data,
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},
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};
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static void setup_j2_leds(void)
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{
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unsigned i;
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for (i = 0; i < ARRAY_SIZE(stk_j2_led); i++)
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at32_select_gpio(stk_j2_led[i].gpio, AT32_GPIOF_OUTPUT);
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printk("STK1002: " LEDSTRING "\n");
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platform_device_register(&stk_j2_led_dev);
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}
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#else
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static void setup_j2_leds(void)
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{
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}
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#endif
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void __init setup_board(void)
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{
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#ifdef CONFIG_BOARD_ATSTK1002_SW2_CUSTOM
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@ -185,6 +245,8 @@ static int __init atstk1002_init(void)
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at32_add_device_ssc(0, ATMEL_SSC_TX);
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#endif
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setup_j2_leds();
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return 0;
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}
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postcore_initcall(atstk1002_init);
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@ -255,6 +255,8 @@ static inline void memset_io(volatile void __iomem *addr, unsigned char val,
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memset((void __force *)addr, val, count);
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}
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#define mmiowb()
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#define IO_SPACE_LIMIT 0xffffffff
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extern void __iomem *__ioremap(unsigned long offset, size_t size,
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@ -27,13 +27,7 @@ static __inline__ void pmd_populate(struct mm_struct *mm, pmd_t *pmd,
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*/
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static __inline__ pgd_t *pgd_alloc(struct mm_struct *mm)
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{
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unsigned int pgd_size = (USER_PTRS_PER_PGD * sizeof(pgd_t));
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pgd_t *pgd = kmalloc(pgd_size, GFP_KERNEL);
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if (pgd)
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memset(pgd, 0, pgd_size);
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return pgd;
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return kcalloc(USER_PTRS_PER_PGD, sizeof(pgd_t), GFP_KERNEL);
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}
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static inline void pgd_free(pgd_t *pgd)
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@ -44,18 +38,9 @@ static inline void pgd_free(pgd_t *pgd)
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static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
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unsigned long address)
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{
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int count = 0;
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pte_t *pte;
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do {
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pte = (pte_t *) __get_free_page(GFP_KERNEL | __GFP_REPEAT);
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if (pte)
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clear_page(pte);
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else {
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current->state = TASK_UNINTERRUPTIBLE;
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schedule_timeout(HZ);
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}
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} while (!pte && (count++ < 10));
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pte = (pte_t *)get_zeroed_page(GFP_KERNEL | __GFP_REPEAT);
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return pte;
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}
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@ -63,18 +48,9 @@ static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
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static inline struct page *pte_alloc_one(struct mm_struct *mm,
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unsigned long address)
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{
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int count = 0;
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struct page *pte;
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do {
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pte = alloc_pages(GFP_KERNEL, 0);
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if (pte)
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clear_page(page_address(pte));
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else {
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current->state = TASK_UNINTERRUPTIBLE;
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schedule_timeout(HZ);
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}
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} while (!pte && (count++ < 10));
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pte = alloc_page(GFP_KERNEL | __GFP_REPEAT | __GFP_ZERO);
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return pte;
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}
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@ -32,8 +32,6 @@
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#define USER_PTRS_PER_PGD (TASK_SIZE / PGDIR_SIZE)
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#define FIRST_USER_ADDRESS 0
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#define PTE_PHYS_MASK 0x1ffff000
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#ifndef __ASSEMBLY__
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extern pgd_t swapper_pg_dir[PTRS_PER_PGD];
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extern void paging_init(void);
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@ -265,7 +263,7 @@ static inline pte_t pte_mkyoung(pte_t pte)
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* trivial.
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*/
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#define pages_to_mb(x) ((x) >> (20-PAGE_SHIFT))
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#define pte_page(x) phys_to_page(pte_val(x) & PTE_PHYS_MASK)
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#define pte_page(x) (pfn_to_page(pte_pfn(x)))
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/*
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* Mark the prot value as uncacheable and unbufferable
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