summaryrefslogtreecommitdiff
path: root/target/linux/brcm47xx/patches-3.6/502-bcm47xx-rewrite-gpio-handling.patch
diff options
context:
space:
mode:
Diffstat (limited to 'target/linux/brcm47xx/patches-3.6/502-bcm47xx-rewrite-gpio-handling.patch')
-rw-r--r--target/linux/brcm47xx/patches-3.6/502-bcm47xx-rewrite-gpio-handling.patch493
1 files changed, 0 insertions, 493 deletions
diff --git a/target/linux/brcm47xx/patches-3.6/502-bcm47xx-rewrite-gpio-handling.patch b/target/linux/brcm47xx/patches-3.6/502-bcm47xx-rewrite-gpio-handling.patch
deleted file mode 100644
index cff3184..0000000
--- a/target/linux/brcm47xx/patches-3.6/502-bcm47xx-rewrite-gpio-handling.patch
+++ /dev/null
@@ -1,493 +0,0 @@
---- a/arch/mips/Kconfig
-+++ b/arch/mips/Kconfig
-@@ -101,6 +101,7 @@ config ATH79
-
- config BCM47XX
- bool "Broadcom BCM47XX based boards"
-+ select ARCH_REQUIRE_GPIOLIB
- select BOOT_RAW
- select CEVT_R4K
- select CSRC_R4K
-@@ -110,7 +111,6 @@ config BCM47XX
- select NO_EXCEPT_FILL
- select SYS_SUPPORTS_32BIT_KERNEL
- select SYS_SUPPORTS_LITTLE_ENDIAN
-- select GENERIC_GPIO
- select CFE
- help
- Support for BCM47XX based boards
---- a/arch/mips/bcm47xx/gpio.c
-+++ b/arch/mips/bcm47xx/gpio.c
-@@ -4,83 +4,154 @@
- * for more details.
- *
- * Copyright (C) 2007 Aurelien Jarno <aurelien@aurel32.net>
-+ * Copyright (C) 2012 Hauke Mehrtens <hauke@hauke-m.de>
-+ *
-+ * Parts of this file are based on Atheros AR71XX/AR724X/AR913X GPIO
- */
-
- #include <linux/export.h>
-+#include <linux/gpio.h>
- #include <linux/ssb/ssb.h>
--#include <linux/ssb/ssb_driver_chipcommon.h>
--#include <linux/ssb/ssb_driver_extif.h>
--#include <asm/mach-bcm47xx/bcm47xx.h>
--#include <asm/mach-bcm47xx/gpio.h>
-+#include <linux/ssb/ssb_embedded.h>
-+#include <linux/bcma/bcma.h>
-+
-+#include <bcm47xx.h>
-
--#if (BCM47XX_CHIPCO_GPIO_LINES > BCM47XX_EXTIF_GPIO_LINES)
--static DECLARE_BITMAP(gpio_in_use, BCM47XX_CHIPCO_GPIO_LINES);
--#else
--static DECLARE_BITMAP(gpio_in_use, BCM47XX_EXTIF_GPIO_LINES);
--#endif
-
--int gpio_request(unsigned gpio, const char *tag)
-+static unsigned long bcm47xx_gpio_count;
-+
-+/* low level BCM47xx gpio api */
-+u32 bcm47xx_gpio_in(u32 mask)
- {
- switch (bcm47xx_bus_type) {
- #ifdef CONFIG_BCM47XX_SSB
- case BCM47XX_BUS_TYPE_SSB:
-- if (ssb_chipco_available(&bcm47xx_bus.ssb.chipco) &&
-- ((unsigned)gpio >= BCM47XX_CHIPCO_GPIO_LINES))
-- return -EINVAL;
--
-- if (ssb_extif_available(&bcm47xx_bus.ssb.extif) &&
-- ((unsigned)gpio >= BCM47XX_EXTIF_GPIO_LINES))
-- return -EINVAL;
--
-- if (test_and_set_bit(gpio, gpio_in_use))
-- return -EBUSY;
--
-- return 0;
-+ return ssb_gpio_in(&bcm47xx_bus.ssb, mask);
- #endif
- #ifdef CONFIG_BCM47XX_BCMA
- case BCM47XX_BUS_TYPE_BCMA:
-- if (gpio >= BCM47XX_CHIPCO_GPIO_LINES)
-- return -EINVAL;
--
-- if (test_and_set_bit(gpio, gpio_in_use))
-- return -EBUSY;
-+ return bcma_chipco_gpio_in(&bcm47xx_bus.bcma.bus.drv_cc, mask);
-+#endif
-+ }
-+ return -EINVAL;
-+}
-+EXPORT_SYMBOL(bcm47xx_gpio_in);
-
-- return 0;
-+u32 bcm47xx_gpio_out(u32 mask, u32 value)
-+{
-+ switch (bcm47xx_bus_type) {
-+#ifdef CONFIG_BCM47XX_SSB
-+ case BCM47XX_BUS_TYPE_SSB:
-+ return ssb_gpio_out(&bcm47xx_bus.ssb, mask, value);
-+#endif
-+#ifdef CONFIG_BCM47XX_BCMA
-+ case BCM47XX_BUS_TYPE_BCMA:
-+ return bcma_chipco_gpio_out(&bcm47xx_bus.bcma.bus.drv_cc, mask,
-+ value);
- #endif
- }
- return -EINVAL;
- }
--EXPORT_SYMBOL(gpio_request);
-+EXPORT_SYMBOL(bcm47xx_gpio_out);
-
--void gpio_free(unsigned gpio)
-+u32 bcm47xx_gpio_outen(u32 mask, u32 value)
- {
- switch (bcm47xx_bus_type) {
- #ifdef CONFIG_BCM47XX_SSB
- case BCM47XX_BUS_TYPE_SSB:
-- if (ssb_chipco_available(&bcm47xx_bus.ssb.chipco) &&
-- ((unsigned)gpio >= BCM47XX_CHIPCO_GPIO_LINES))
-- return;
-+ return ssb_gpio_outen(&bcm47xx_bus.ssb, mask, value);
-+#endif
-+#ifdef CONFIG_BCM47XX_BCMA
-+ case BCM47XX_BUS_TYPE_BCMA:
-+ return bcma_chipco_gpio_outen(&bcm47xx_bus.bcma.bus.drv_cc,
-+ mask, value);
-+#endif
-+ }
-+ return -EINVAL;
-+}
-+EXPORT_SYMBOL(bcm47xx_gpio_outen);
-
-- if (ssb_extif_available(&bcm47xx_bus.ssb.extif) &&
-- ((unsigned)gpio >= BCM47XX_EXTIF_GPIO_LINES))
-- return;
-+u32 bcm47xx_gpio_control(u32 mask, u32 value)
-+{
-+ switch (bcm47xx_bus_type) {
-+#ifdef CONFIG_BCM47XX_SSB
-+ case BCM47XX_BUS_TYPE_SSB:
-+ return ssb_gpio_control(&bcm47xx_bus.ssb, mask, value);
-+#endif
-+#ifdef CONFIG_BCM47XX_BCMA
-+ case BCM47XX_BUS_TYPE_BCMA:
-+ return bcma_chipco_gpio_control(&bcm47xx_bus.bcma.bus.drv_cc,
-+ mask, value);
-+#endif
-+ }
-+ return -EINVAL;
-+}
-+EXPORT_SYMBOL(bcm47xx_gpio_control);
-
-- clear_bit(gpio, gpio_in_use);
-- return;
-+u32 bcm47xx_gpio_intmask(u32 mask, u32 value)
-+{
-+ switch (bcm47xx_bus_type) {
-+#ifdef CONFIG_BCM47XX_SSB
-+ case BCM47XX_BUS_TYPE_SSB:
-+ return ssb_gpio_intmask(&bcm47xx_bus.ssb, mask, value);
- #endif
- #ifdef CONFIG_BCM47XX_BCMA
- case BCM47XX_BUS_TYPE_BCMA:
-- if (gpio >= BCM47XX_CHIPCO_GPIO_LINES)
-- return;
-+ return bcma_chipco_gpio_intmask(&bcm47xx_bus.bcma.bus.drv_cc,
-+ mask, value);
-+#endif
-+ }
-+ return -EINVAL;
-+}
-+EXPORT_SYMBOL(bcm47xx_gpio_intmask);
-
-- clear_bit(gpio, gpio_in_use);
-- return;
-+u32 bcm47xx_gpio_polarity(u32 mask, u32 value)
-+{
-+ switch (bcm47xx_bus_type) {
-+#ifdef CONFIG_BCM47XX_SSB
-+ case BCM47XX_BUS_TYPE_SSB:
-+ return ssb_gpio_polarity(&bcm47xx_bus.ssb, mask, value);
-+#endif
-+#ifdef CONFIG_BCM47XX_BCMA
-+ case BCM47XX_BUS_TYPE_BCMA:
-+ return bcma_chipco_gpio_polarity(&bcm47xx_bus.bcma.bus.drv_cc,
-+ mask, value);
- #endif
- }
-+ return -EINVAL;
-+}
-+EXPORT_SYMBOL(bcm47xx_gpio_polarity);
-+
-+
-+static int bcm47xx_gpio_get_value(struct gpio_chip *chip, unsigned gpio)
-+{
-+ return bcm47xx_gpio_in(1 << gpio);
-+}
-+
-+static void bcm47xx_gpio_set_value(struct gpio_chip *chip,
-+ unsigned gpio, int value)
-+{
-+ bcm47xx_gpio_out(1 << gpio, value ? 1 << gpio : 0);
-+}
-+
-+static int bcm47xx_gpio_direction_input(struct gpio_chip *chip,
-+ unsigned gpio)
-+{
-+ bcm47xx_gpio_outen(1 << gpio, 0);
-+ return 0;
-+}
-+
-+static int bcm47xx_gpio_direction_output(struct gpio_chip *chip,
-+ unsigned gpio, int value)
-+{
-+ /* first set the gpio out value */
-+ bcm47xx_gpio_out(1 << gpio, value ? 1 << gpio : 0);
-+ /* then set the gpio mode */
-+ bcm47xx_gpio_outen(1 << gpio, 1 << gpio);
-+ return 0;
- }
--EXPORT_SYMBOL(gpio_free);
-
--int gpio_to_irq(unsigned gpio)
-+static int bcm47xx_gpio_to_irq(struct gpio_chip *chip, unsigned gpio)
- {
- switch (bcm47xx_bus_type) {
- #ifdef CONFIG_BCM47XX_SSB
-@@ -99,4 +170,55 @@ int gpio_to_irq(unsigned gpio)
- }
- return -EINVAL;
- }
--EXPORT_SYMBOL_GPL(gpio_to_irq);
-+
-+static struct gpio_chip bcm47xx_gpio_chip = {
-+ .label = "bcm47xx",
-+ .get = bcm47xx_gpio_get_value,
-+ .set = bcm47xx_gpio_set_value,
-+ .direction_input = bcm47xx_gpio_direction_input,
-+ .direction_output = bcm47xx_gpio_direction_output,
-+ .to_irq = bcm47xx_gpio_to_irq,
-+ .base = 0,
-+};
-+
-+void __init bcm47xx_gpio_init(void)
-+{
-+ int err;
-+
-+ switch (bcm47xx_bus_type) {
-+#ifdef CONFIG_BCM47XX_SSB
-+ case BCM47XX_BUS_TYPE_SSB:
-+ bcm47xx_gpio_count = ssb_gpio_count(&bcm47xx_bus.ssb);
-+ break;
-+#endif
-+#ifdef CONFIG_BCM47XX_BCMA
-+ case BCM47XX_BUS_TYPE_BCMA:
-+ bcm47xx_gpio_count = bcma_chipco_gpio_count();
-+ break;
-+#endif
-+ }
-+
-+ bcm47xx_gpio_chip.ngpio = bcm47xx_gpio_count;
-+
-+ err = gpiochip_add(&bcm47xx_gpio_chip);
-+ if (err)
-+ panic("cannot add BCM47xx GPIO chip, error=%d", err);
-+}
-+
-+int gpio_get_value(unsigned gpio)
-+{
-+ if (gpio < bcm47xx_gpio_count)
-+ return bcm47xx_gpio_in(1 << gpio);
-+
-+ return __gpio_get_value(gpio);
-+}
-+EXPORT_SYMBOL(gpio_get_value);
-+
-+void gpio_set_value(unsigned gpio, int value)
-+{
-+ if (gpio < bcm47xx_gpio_count)
-+ bcm47xx_gpio_out(1 << gpio, value ? 1 << gpio : 0);
-+ else
-+ __gpio_set_value(gpio, value);
-+}
-+EXPORT_SYMBOL(gpio_set_value);
---- a/arch/mips/bcm47xx/setup.c
-+++ b/arch/mips/bcm47xx/setup.c
-@@ -252,6 +252,8 @@ void __init plat_mem_setup(void)
- _machine_restart = bcm47xx_machine_restart;
- _machine_halt = bcm47xx_machine_halt;
- pm_power_off = bcm47xx_machine_halt;
-+
-+ bcm47xx_gpio_init();
- }
-
- static int __init bcm47xx_register_bus_complete(void)
---- a/arch/mips/bcm47xx/wgt634u.c
-+++ b/arch/mips/bcm47xx/wgt634u.c
-@@ -133,6 +133,7 @@ static int __init wgt634u_init(void)
- * been allocated ranges 00:09:5b:xx:xx:xx and 00:0f:b5:xx:xx:xx.
- */
- u8 *et0mac;
-+ int err;
-
- if (bcm47xx_bus_type != BCM47XX_BUS_TYPE_SSB)
- return -ENODEV;
-@@ -146,6 +147,12 @@ static int __init wgt634u_init(void)
-
- printk(KERN_INFO "WGT634U machine detected.\n");
-
-+ err = gpio_request(WGT634U_GPIO_RESET, "reset-buton");
-+ if (err) {
-+ printk(KERN_INFO "Can not register gpio for reset button\n");
-+ return 0;
-+ }
-+
- if (!request_irq(gpio_to_irq(WGT634U_GPIO_RESET),
- gpio_interrupt, IRQF_SHARED,
- "WGT634U GPIO", &bcm47xx_bus.ssb.chipco)) {
---- a/arch/mips/include/asm/mach-bcm47xx/bcm47xx.h
-+++ b/arch/mips/include/asm/mach-bcm47xx/bcm47xx.h
-@@ -56,4 +56,6 @@ void bcm47xx_fill_bcma_boardinfo(struct
- const char *prefix);
- #endif
-
-+void bcm47xx_gpio_init(void);
-+
- #endif /* __ASM_BCM47XX_H */
---- a/arch/mips/include/asm/mach-bcm47xx/gpio.h
-+++ b/arch/mips/include/asm/mach-bcm47xx/gpio.h
-@@ -4,152 +4,42 @@
- * for more details.
- *
- * Copyright (C) 2007 Aurelien Jarno <aurelien@aurel32.net>
-+ * Copyright (C) 2012 Hauke Mehrtens <hauke@hauke-m.de>
- */
-
- #ifndef __BCM47XX_GPIO_H
- #define __BCM47XX_GPIO_H
-
--#include <linux/ssb/ssb_embedded.h>
--#include <linux/bcma/bcma.h>
--#include <asm/mach-bcm47xx/bcm47xx.h>
--
--#define BCM47XX_EXTIF_GPIO_LINES 5
--#define BCM47XX_CHIPCO_GPIO_LINES 16
--
--extern int gpio_request(unsigned gpio, const char *label);
--extern void gpio_free(unsigned gpio);
--extern int gpio_to_irq(unsigned gpio);
--
--static inline int gpio_get_value(unsigned gpio)
--{
-- switch (bcm47xx_bus_type) {
--#ifdef CONFIG_BCM47XX_SSB
-- case BCM47XX_BUS_TYPE_SSB:
-- return ssb_gpio_in(&bcm47xx_bus.ssb, 1 << gpio);
--#endif
--#ifdef CONFIG_BCM47XX_BCMA
-- case BCM47XX_BUS_TYPE_BCMA:
-- return bcma_chipco_gpio_in(&bcm47xx_bus.bcma.bus.drv_cc,
-- 1 << gpio);
--#endif
-- }
-- return -EINVAL;
--}
--
--#define gpio_get_value_cansleep gpio_get_value
--
--static inline void gpio_set_value(unsigned gpio, int value)
--{
-- switch (bcm47xx_bus_type) {
--#ifdef CONFIG_BCM47XX_SSB
-- case BCM47XX_BUS_TYPE_SSB:
-- ssb_gpio_out(&bcm47xx_bus.ssb, 1 << gpio,
-- value ? 1 << gpio : 0);
-- return;
--#endif
--#ifdef CONFIG_BCM47XX_BCMA
-- case BCM47XX_BUS_TYPE_BCMA:
-- bcma_chipco_gpio_out(&bcm47xx_bus.bcma.bus.drv_cc, 1 << gpio,
-- value ? 1 << gpio : 0);
-- return;
--#endif
-- }
--}
--
--#define gpio_set_value_cansleep gpio_set_value
--
--static inline int gpio_cansleep(unsigned gpio)
--{
-- return 0;
--}
--
--static inline int gpio_is_valid(unsigned gpio)
--{
-- return gpio < (BCM47XX_EXTIF_GPIO_LINES + BCM47XX_CHIPCO_GPIO_LINES);
--}
-+#define ARCH_NR_GPIOS 64
-+#include <asm-generic/gpio.h>
-
-+/* low level BCM47xx gpio api */
-+u32 bcm47xx_gpio_in(u32 mask);
-+u32 bcm47xx_gpio_out(u32 mask, u32 value);
-+u32 bcm47xx_gpio_outen(u32 mask, u32 value);
-+u32 bcm47xx_gpio_control(u32 mask, u32 value);
-+u32 bcm47xx_gpio_intmask(u32 mask, u32 value);
-+u32 bcm47xx_gpio_polarity(u32 mask, u32 value);
-
--static inline int gpio_direction_input(unsigned gpio)
--{
-- switch (bcm47xx_bus_type) {
--#ifdef CONFIG_BCM47XX_SSB
-- case BCM47XX_BUS_TYPE_SSB:
-- ssb_gpio_outen(&bcm47xx_bus.ssb, 1 << gpio, 0);
-- return 0;
--#endif
--#ifdef CONFIG_BCM47XX_BCMA
-- case BCM47XX_BUS_TYPE_BCMA:
-- bcma_chipco_gpio_outen(&bcm47xx_bus.bcma.bus.drv_cc, 1 << gpio,
-- 0);
-- return 0;
--#endif
-- }
-- return -EINVAL;
--}
-+int gpio_get_value(unsigned gpio);
-+void gpio_set_value(unsigned gpio, int value);
-
--static inline int gpio_direction_output(unsigned gpio, int value)
-+static inline void gpio_intmask(unsigned gpio, int value)
- {
-- switch (bcm47xx_bus_type) {
--#ifdef CONFIG_BCM47XX_SSB
-- case BCM47XX_BUS_TYPE_SSB:
-- /* first set the gpio out value */
-- ssb_gpio_out(&bcm47xx_bus.ssb, 1 << gpio,
-- value ? 1 << gpio : 0);
-- /* then set the gpio mode */
-- ssb_gpio_outen(&bcm47xx_bus.ssb, 1 << gpio, 1 << gpio);
-- return 0;
--#endif
--#ifdef CONFIG_BCM47XX_BCMA
-- case BCM47XX_BUS_TYPE_BCMA:
-- /* first set the gpio out value */
-- bcma_chipco_gpio_out(&bcm47xx_bus.bcma.bus.drv_cc, 1 << gpio,
-- value ? 1 << gpio : 0);
-- /* then set the gpio mode */
-- bcma_chipco_gpio_outen(&bcm47xx_bus.bcma.bus.drv_cc, 1 << gpio,
-- 1 << gpio);
-- return 0;
--#endif
-- }
-- return -EINVAL;
-+ bcm47xx_gpio_intmask(1 << gpio, value ? 1 << gpio : 0);
- }
-
--static inline int gpio_intmask(unsigned gpio, int value)
-+static inline void gpio_polarity(unsigned gpio, int value)
- {
-- switch (bcm47xx_bus_type) {
--#ifdef CONFIG_BCM47XX_SSB
-- case BCM47XX_BUS_TYPE_SSB:
-- ssb_gpio_intmask(&bcm47xx_bus.ssb, 1 << gpio,
-- value ? 1 << gpio : 0);
-- return 0;
--#endif
--#ifdef CONFIG_BCM47XX_BCMA
-- case BCM47XX_BUS_TYPE_BCMA:
-- bcma_chipco_gpio_intmask(&bcm47xx_bus.bcma.bus.drv_cc,
-- 1 << gpio, value ? 1 << gpio : 0);
-- return 0;
--#endif
-- }
-- return -EINVAL;
-+ bcm47xx_gpio_polarity(1 << gpio, value ? 1 << gpio : 0);
- }
-
--static inline int gpio_polarity(unsigned gpio, int value)
-+static inline int irq_to_gpio(int gpio)
- {
-- switch (bcm47xx_bus_type) {
--#ifdef CONFIG_BCM47XX_SSB
-- case BCM47XX_BUS_TYPE_SSB:
-- ssb_gpio_polarity(&bcm47xx_bus.ssb, 1 << gpio,
-- value ? 1 << gpio : 0);
-- return 0;
--#endif
--#ifdef CONFIG_BCM47XX_BCMA
-- case BCM47XX_BUS_TYPE_BCMA:
-- bcma_chipco_gpio_polarity(&bcm47xx_bus.bcma.bus.drv_cc,
-- 1 << gpio, value ? 1 << gpio : 0);
-- return 0;
--#endif
-- }
- return -EINVAL;
- }
-
-+#define gpio_cansleep __gpio_cansleep
-+#define gpio_to_irq __gpio_to_irq
-
- #endif /* __BCM47XX_GPIO_H */
generated by cgit v1.1 at 2024-12-03 01:40:55 +0000