diff options
| author | Florian Fainelli <florian@openwrt.org> | 2010-03-21 03:06:05 +0300 |
|---|---|---|
| committer | Samuel Ortiz <sameo@linux.intel.com> | 2010-05-28 03:37:28 +0400 |
| commit | e090d506c3f1b314059fb77b177cd4193bb81d6e (patch) | |
| tree | 65e589046da3de2ada51415ff3d1598c0dc81085 /include | |
| parent | f322d5f0097333343bfd92b47258ee997c889263 (diff) | |
| download | linux-e090d506c3f1b314059fb77b177cd4193bb81d6e.tar.xz | |
mfd: Add support for the RDC321x southbridge
This patch adds a new MFD driver for the RDC321x southbridge. This southbridge
is always present in the RDC321x System-on-a-Chip and provides access to some
GPIOs as well as a watchdog. Access to these two functions is done using the
southbridge PCI device configuration space.
Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/mfd/rdc321x.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/include/linux/mfd/rdc321x.h b/include/linux/mfd/rdc321x.h new file mode 100644 index 000000000000..4bdf19c8eedf --- /dev/null +++ b/include/linux/mfd/rdc321x.h @@ -0,0 +1,26 @@ +#ifndef __RDC321X_MFD_H +#define __RDC321X_MFD_H + +#include <linux/types.h> +#include <linux/pci.h> + +/* Offsets to be accessed in the southbridge PCI + * device configuration register */ +#define RDC321X_WDT_CTRL 0x44 +#define RDC321X_GPIO_CTRL_REG1 0x48 +#define RDC321X_GPIO_DATA_REG1 0x4c +#define RDC321X_GPIO_CTRL_REG2 0x84 +#define RDC321X_GPIO_DATA_REG2 0x88 + +#define RDC321X_MAX_GPIO 58 + +struct rdc321x_gpio_pdata { + struct pci_dev *sb_pdev; + unsigned max_gpios; +}; + +struct rdc321x_wdt_pdata { + struct pci_dev *sb_pdev; +}; + +#endif /* __RDC321X_MFD_H */ |