diff options
Diffstat (limited to 'target/linux/brcm47xx/patches-3.3/501-bcma-add-gpio-driver.patch')
| -rw-r--r-- | target/linux/brcm47xx/patches-3.3/501-bcma-add-gpio-driver.patch | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/target/linux/brcm47xx/patches-3.3/501-bcma-add-gpio-driver.patch b/target/linux/brcm47xx/patches-3.3/501-bcma-add-gpio-driver.patch new file mode 100644 index 0000000000..1fd2cffffb --- /dev/null +++ b/target/linux/brcm47xx/patches-3.3/501-bcma-add-gpio-driver.patch @@ -0,0 +1,170 @@ +--- a/drivers/bcma/Kconfig ++++ b/drivers/bcma/Kconfig +@@ -39,6 +39,11 @@ config BCMA_HOST_SOC + depends on BCMA_DRIVER_MIPS + select USB_HCD_BCMA if USB_EHCI_HCD || USB_OHCI_HCD + ++config BCMA_DRIVER_GPIO ++ bool ++ depends on BCMA_DRIVER_MIPS ++ default y ++ + config BCMA_SFLASH + bool + depends on BCMA_DRIVER_MIPS +--- a/drivers/bcma/Makefile ++++ b/drivers/bcma/Makefile +@@ -6,6 +6,7 @@ bcma-y += driver_pci.o + bcma-$(CONFIG_BCMA_DRIVER_PCI_HOSTMODE) += driver_pci_host.o + bcma-$(CONFIG_BCMA_DRIVER_MIPS) += driver_mips.o + bcma-$(CONFIG_BCMA_DRIVER_GMAC_CMN) += driver_gmac_cmn.o ++bcma-$(CONFIG_BCMA_DRIVER_GPIO) += driver_gpio.o + bcma-$(CONFIG_BCMA_HOST_PCI) += host_pci.o + bcma-$(CONFIG_BCMA_HOST_SOC) += host_soc.o + obj-$(CONFIG_BCMA) += bcma.o +--- /dev/null ++++ b/drivers/bcma/driver_gpio.c +@@ -0,0 +1,96 @@ ++/* ++ * Broadcom specific AMBA ++ * GPIO driver for SoCs ++ * ++ * Copyright 2012, Hauke Mehrtens <hauke@hauke-m.de> ++ * ++ * Licensed under the GNU/GPL. See COPYING for details. ++ */ ++ ++#include <linux/export.h> ++#include <linux/bcma/bcma.h> ++#include <linux/bcma/bcma_driver_gpio.h> ++ ++u32 bcma_gpio_in(struct bcma_bus *bus, u32 mask) ++{ ++ unsigned long flags; ++ u32 res = 0; ++ ++ spin_lock_irqsave(&bus->gpio_lock, flags); ++ res = bcma_chipco_gpio_in(&bus->drv_cc, mask); ++ spin_unlock_irqrestore(&bus->gpio_lock, flags); ++ ++ return res; ++} ++EXPORT_SYMBOL(bcma_gpio_in); ++ ++u32 bcma_gpio_out(struct bcma_bus *bus, u32 mask, u32 value) ++{ ++ unsigned long flags; ++ u32 res = 0; ++ ++ spin_lock_irqsave(&bus->gpio_lock, flags); ++ res = bcma_chipco_gpio_out(&bus->drv_cc, mask, value); ++ spin_unlock_irqrestore(&bus->gpio_lock, flags); ++ ++ return res; ++} ++EXPORT_SYMBOL(bcma_gpio_out); ++ ++u32 bcma_gpio_outen(struct bcma_bus *bus, u32 mask, u32 value) ++{ ++ unsigned long flags; ++ u32 res = 0; ++ ++ spin_lock_irqsave(&bus->gpio_lock, flags); ++ res = bcma_chipco_gpio_outen(&bus->drv_cc, mask, value); ++ spin_unlock_irqrestore(&bus->gpio_lock, flags); ++ ++ return res; ++} ++EXPORT_SYMBOL(bcma_gpio_outen); ++ ++u32 bcma_gpio_control(struct bcma_bus *bus, u32 mask, u32 value) ++{ ++ unsigned long flags; ++ u32 res = 0; ++ ++ spin_lock_irqsave(&bus->gpio_lock, flags); ++ res = bcma_chipco_gpio_control(&bus->drv_cc, mask, value); ++ spin_unlock_irqrestore(&bus->gpio_lock, flags); ++ ++ return res; ++} ++EXPORT_SYMBOL(bcma_gpio_control); ++ ++u32 bcma_gpio_intmask(struct bcma_bus *bus, u32 mask, u32 value) ++{ ++ unsigned long flags; ++ u32 res = 0; ++ ++ spin_lock_irqsave(&bus->gpio_lock, flags); ++ res = bcma_chipco_gpio_intmask(&bus->drv_cc, mask, value); ++ spin_unlock_irqrestore(&bus->gpio_lock, flags); ++ ++ return res; ++} ++EXPORT_SYMBOL(bcma_gpio_intmask); ++ ++u32 bcma_gpio_polarity(struct bcma_bus *bus, u32 mask, u32 value) ++{ ++ unsigned long flags; ++ u32 res = 0; ++ ++ spin_lock_irqsave(&bus->gpio_lock, flags); ++ res = bcma_chipco_gpio_polarity(&bus->drv_cc, mask, value); ++ spin_unlock_irqrestore(&bus->gpio_lock, flags); ++ ++ return res; ++} ++EXPORT_SYMBOL(bcma_gpio_polarity); ++ ++int bcma_gpio_count(struct bcma_bus *bus) ++{ ++ return BCMA_GPIO_CC_LINES; ++} ++EXPORT_SYMBOL(bcma_gpio_count); +--- a/drivers/bcma/scan.c ++++ b/drivers/bcma/scan.c +@@ -422,6 +422,10 @@ void bcma_init_bus(struct bcma_bus *bus) + if (bus->init_done) + return; + ++#ifdef CONFIG_BCMA_DRIVER_GPIO ++ spin_lock_init(&bus->gpio_lock); ++#endif ++ + INIT_LIST_HEAD(&bus->cores); + bus->nr_cores = 0; + +--- a/include/linux/bcma/bcma.h ++++ b/include/linux/bcma/bcma.h +@@ -255,6 +255,11 @@ struct bcma_bus { + struct bcma_drv_mips drv_mips; + struct bcma_drv_gmac_cmn drv_gmac_cmn; + ++#ifdef CONFIG_BCMA_DRIVER_GPIO ++ /* Lock for GPIO register access. */ ++ spinlock_t gpio_lock; ++#endif /* CONFIG_BCMA_DRIVER_GPIO */ ++ + /* We decided to share SPROM struct with SSB as long as we do not need + * any hacks for BCMA. This simplifies drivers code. */ + struct ssb_sprom sprom; +--- /dev/null ++++ b/include/linux/bcma/bcma_driver_gpio.h +@@ -0,0 +1,17 @@ ++#ifndef LINUX_BCMA_DRIVER_GPIO_H_ ++#define LINUX_BCMA_DRIVER_GPIO_H_ ++ ++#include <linux/types.h> ++#include <linux/bcma/bcma.h> ++ ++#define BCMA_GPIO_CC_LINES 16 ++ ++u32 bcma_gpio_in(struct bcma_bus *bus, u32 mask); ++u32 bcma_gpio_out(struct bcma_bus *bus, u32 mask, u32 value); ++u32 bcma_gpio_outen(struct bcma_bus *bus, u32 mask, u32 value); ++u32 bcma_gpio_control(struct bcma_bus *bus, u32 mask, u32 value); ++u32 bcma_gpio_intmask(struct bcma_bus *bus, u32 mask, u32 value); ++u32 bcma_gpio_polarity(struct bcma_bus *bus, u32 mask, u32 value); ++int bcma_gpio_count(struct bcma_bus *bus); ++ ++#endif /* LINUX_BCMA_DRIVER_GPIO_H_ */ |