[GIT PULL] AVR32 update

From: Haavard Skinnemoen
Date: Wed Aug 15 2007 - 10:58:22 EST

Hi Linus,

Please pull from

git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6.git for-linus

to receive the following changes.

David Brownell (1):
[AVR32] leds-gpio for stk1000

Haavard Skinnemoen (4):
[AVR32] Wire up i2c-gpio on the ATNGW100 board
[AVR32] Simplify pte_alloc_one{,_kernel}
[AVR32] Fix bogus pte_page() definition
[AVR32] Define mmiowb()

Mariusz Kozlowski (1):
include/asm-avr32/pgalloc.h: kmalloc + memset conversion to kcalloc

arch/avr32/boards/atngw100/setup.c | 18 +++++++++
arch/avr32/boards/atstk1000/Kconfig | 26 +++++++++++++
arch/avr32/boards/atstk1000/atstk1002.c | 62 +++++++++++++++++++++++++++++++
include/asm-avr32/io.h | 2 +
include/asm-avr32/pgalloc.h | 30 +-------------
include/asm-avr32/pgtable.h | 4 +-
6 files changed, 112 insertions(+), 30 deletions(-)

diff --git a/arch/avr32/boards/atngw100/setup.c b/arch/avr32/boards/atngw100/setup.c
index 2edcecd..ef80156 100644
--- a/arch/avr32/boards/atngw100/setup.c
+++ b/arch/avr32/boards/atngw100/setup.c
@@ -9,6 +9,7 @@
*/
#include <linux/clk.h>
#include <linux/etherdevice.h>
+#include <linux/i2c-gpio.h>
#include <linux/init.h>
#include <linux/linkage.h>
#include <linux/platform_device.h>
@@ -123,6 +124,19 @@ static struct platform_device ngw_gpio_leds = {
}
};

+static struct i2c_gpio_platform_data i2c_gpio_data = {
+ .sda_pin = GPIO_PIN_PA(6),
+ .scl_pin = GPIO_PIN_PA(7),
+};
+
+static struct platform_device i2c_gpio_device = {
+ .name = "i2c-gpio",
+ .id = 0,
+ .dev = {
+ .platform_data = &i2c_gpio_data,
+ },
+};
+
static int __init atngw100_init(void)
{
unsigned i;
@@ -147,6 +161,10 @@ static int __init atngw100_init(void)
}
platform_device_register(&ngw_gpio_leds);

+ at32_select_gpio(i2c_gpio_data.sda_pin, 0);
+ at32_select_gpio(i2c_gpio_data.scl_pin, 0);
+ platform_device_register(&i2c_gpio_device);
+
return 0;
}
postcore_initcall(atngw100_init);
diff --git a/arch/avr32/boards/atstk1000/Kconfig b/arch/avr32/boards/atstk1000/Kconfig
index 71bc7d3..718578f 100644
--- a/arch/avr32/boards/atstk1000/Kconfig
+++ b/arch/avr32/boards/atstk1000/Kconfig
@@ -50,4 +50,30 @@ config BOARD_ATSTK1002_SPI1
GPIO lines and accessed through the J1 jumper block. Say "y"
here to configure that SPI controller.

+config BOARD_ATSTK1002_J2_LED
+ bool
+ default BOARD_ATSTK1002_J2_LED8 || BOARD_ATSTK1002_J2_RGB
+
+choice
+ prompt "LEDs connected to J2:"
+ depends on LEDS_GPIO && !BOARD_ATSTK1002_SW4_CUSTOM
+ optional
+ help
+ Select this if you have jumpered the J2 jumper block to the
+ LED0..LED7 amber leds, or to the RGB leds, using a ten-pin
+ IDC cable. A default "heartbeat" trigger is provided, but
+ you can of course override this.
+
+config BOARD_ATSTK1002_J2_LED8
+ bool "LED0..LED7"
+ help
+ Select this if J2 is jumpered to LED0..LED7 amber leds.
+
+config BOARD_ATSTK1002_J2_RGB
+ bool "RGB leds"
+ help
+ Select this if J2 is jumpered to the RGB leds.
+
+endchoice
+
endif # stk 1002
diff --git a/arch/avr32/boards/atstk1000/atstk1002.c b/arch/avr32/boards/atstk1000/atstk1002.c
index cb93eab..c9981b7 100644
--- a/arch/avr32/boards/atstk1000/atstk1002.c
+++ b/arch/avr32/boards/atstk1000/atstk1002.c
@@ -11,6 +11,7 @@
#include <linux/etherdevice.h>
#include <linux/init.h>
#include <linux/kernel.h>
+#include <linux/leds.h>
#include <linux/platform_device.h>
#include <linux/string.h>
#include <linux/types.h>
@@ -120,6 +121,65 @@ static void __init set_hw_addr(struct platform_device *pdev)
clk_put(pclk);
}

+#ifdef CONFIG_BOARD_ATSTK1002_J2_LED
+
+static struct gpio_led stk_j2_led[] = {
+#ifdef CONFIG_BOARD_ATSTK1002_J2_LED8
+#define LEDSTRING "J2 jumpered to LED8"
+ { .name = "led0:amber", .gpio = GPIO_PIN_PB( 8), },
+ { .name = "led1:amber", .gpio = GPIO_PIN_PB( 9), },
+ { .name = "led2:amber", .gpio = GPIO_PIN_PB(10), },
+ { .name = "led3:amber", .gpio = GPIO_PIN_PB(13), },
+ { .name = "led4:amber", .gpio = GPIO_PIN_PB(14), },
+ { .name = "led5:amber", .gpio = GPIO_PIN_PB(15), },
+ { .name = "led6:amber", .gpio = GPIO_PIN_PB(16), },
+ { .name = "led7:amber", .gpio = GPIO_PIN_PB(30),
+ .default_trigger = "heartbeat", },
+#else /* RGB */
+#define LEDSTRING "J2 jumpered to RGB LEDs"
+ { .name = "r1:red", .gpio = GPIO_PIN_PB( 8), },
+ { .name = "g1:green", .gpio = GPIO_PIN_PB(10), },
+ { .name = "b1:blue", .gpio = GPIO_PIN_PB(14), },
+
+ { .name = "r2:red", .gpio = GPIO_PIN_PB( 9),
+ .default_trigger = "heartbeat", },
+ { .name = "g2:green", .gpio = GPIO_PIN_PB(13), },
+ { .name = "b2:blue", .gpio = GPIO_PIN_PB(15),
+ .default_trigger = "heartbeat", },
+ /* PB16, PB30 unused */
+#endif
+};
+
+static struct gpio_led_platform_data stk_j2_led_data = {
+ .num_leds = ARRAY_SIZE(stk_j2_led),
+ .leds = stk_j2_led,
+};
+
+static struct platform_device stk_j2_led_dev = {
+ .name = "leds-gpio",
+ .id = 2, /* gpio block J2 */
+ .dev = {
+ .platform_data = &stk_j2_led_data,
+ },
+};
+
+static void setup_j2_leds(void)
+{
+ unsigned i;
+
+ for (i = 0; i < ARRAY_SIZE(stk_j2_led); i++)
+ at32_select_gpio(stk_j2_led[i].gpio, AT32_GPIOF_OUTPUT);
+
+ printk("STK1002: " LEDSTRING "\n");
+ platform_device_register(&stk_j2_led_dev);
+}
+
+#else
+static void setup_j2_leds(void)
+{
+}
+#endif
+
void __init setup_board(void)
{
#ifdef CONFIG_BOARD_ATSTK1002_SW2_CUSTOM
@@ -185,6 +245,8 @@ static int __init atstk1002_init(void)
at32_add_device_ssc(0, ATMEL_SSC_TX);
#endif

+ setup_j2_leds();
+
return 0;
}
postcore_initcall(atstk1002_init);
diff --git a/include/asm-avr32/io.h b/include/asm-avr32/io.h
index e30d4b3..64bb92b 100644
--- a/include/asm-avr32/io.h
+++ b/include/asm-avr32/io.h
@@ -255,6 +255,8 @@ static inline void memset_io(volatile void __iomem *addr, unsigned char val,
memset((void __force *)addr, val, count);
}

+#define mmiowb()
+
#define IO_SPACE_LIMIT 0xffffffff

extern void __iomem *__ioremap(unsigned long offset, size_t size,
diff --git a/include/asm-avr32/pgalloc.h b/include/asm-avr32/pgalloc.h
index bb82e70..0e680f4 100644
--- a/include/asm-avr32/pgalloc.h
+++ b/include/asm-avr32/pgalloc.h
@@ -27,13 +27,7 @@ static __inline__ void pmd_populate(struct mm_struct *mm, pmd_t *pmd,
*/
static __inline__ pgd_t *pgd_alloc(struct mm_struct *mm)
{
- unsigned int pgd_size = (USER_PTRS_PER_PGD * sizeof(pgd_t));
- pgd_t *pgd = kmalloc(pgd_size, GFP_KERNEL);
-
- if (pgd)
- memset(pgd, 0, pgd_size);
-
- return pgd;
+ return kcalloc(USER_PTRS_PER_PGD, sizeof(pgd_t), GFP_KERNEL);
}

static inline void pgd_free(pgd_t *pgd)
@@ -44,18 +38,9 @@ static inline void pgd_free(pgd_t *pgd)
static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
unsigned long address)
{
- int count = 0;
pte_t *pte;

- do {
- pte = (pte_t *) __get_free_page(GFP_KERNEL | __GFP_REPEAT);
- if (pte)
- clear_page(pte);
- else {
- current->state = TASK_UNINTERRUPTIBLE;
- schedule_timeout(HZ);
- }
- } while (!pte && (count++ < 10));
+ pte = (pte_t *)get_zeroed_page(GFP_KERNEL | __GFP_REPEAT);

return pte;
}
@@ -63,18 +48,9 @@ static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
static inline struct page *pte_alloc_one(struct mm_struct *mm,
unsigned long address)
{
- int count = 0;
struct page *pte;

- do {
- pte = alloc_pages(GFP_KERNEL, 0);
- if (pte)
- clear_page(page_address(pte));
- else {
- current->state = TASK_UNINTERRUPTIBLE;
- schedule_timeout(HZ);
- }
- } while (!pte && (count++ < 10));
+ pte = alloc_page(GFP_KERNEL | __GFP_REPEAT | __GFP_ZERO);

return pte;
}
diff --git a/include/asm-avr32/pgtable.h b/include/asm-avr32/pgtable.h
index c07bdd1..018f6e2 100644
--- a/include/asm-avr32/pgtable.h
+++ b/include/asm-avr32/pgtable.h
@@ -32,8 +32,6 @@
#define USER_PTRS_PER_PGD (TASK_SIZE / PGDIR_SIZE)
#define FIRST_USER_ADDRESS 0

-#define PTE_PHYS_MASK 0x1ffff000
-
#ifndef __ASSEMBLY__
extern pgd_t swapper_pg_dir[PTRS_PER_PGD];
extern void paging_init(void);
@@ -265,7 +263,7 @@ static inline pte_t pte_mkyoung(pte_t pte)
* trivial.
*/
#define pages_to_mb(x) ((x) >> (20-PAGE_SHIFT))
-#define pte_page(x) phys_to_page(pte_val(x) & PTE_PHYS_MASK)
+#define pte_page(x) (pfn_to_page(pte_pfn(x)))

/*
* Mark the prot value as uncacheable and unbufferable
-
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