You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
169 lines
4.4 KiB
Diff
169 lines
4.4 KiB
Diff
--- 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 +1,90 @@
|
|
+/*
|
|
+ * 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);
|
|
--- 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 +1,21 @@
|
|
+#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);
|
|
+
|
|
+static inline int bcma_gpio_count(struct bcma_bus *bus)
|
|
+{
|
|
+ return BCMA_GPIO_CC_LINES;
|
|
+}
|
|
+
|
|
+#endif /* LINUX_BCMA_DRIVER_GPIO_H_ */
|