From e090d506c3f1b314059fb77b177cd4193bb81d6e Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Sun, 21 Mar 2010 01:06:05 +0100 Subject: 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 Signed-off-by: Samuel Ortiz --- include/linux/mfd/rdc321x.h | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) create mode 100644 include/linux/mfd/rdc321x.h (limited to 'include/linux/mfd') 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 +#include + +/* 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 */ -- cgit v1.2.1