x86: ich6-gpio: Add Intel Tunnel Creek GPIO support
Intel Tunnel Creek GPIO register block is compatible with current
ich6-gpio driver, except the offset and content of GPIO block base
address register in the LPC PCI configuration space are different.
Use u16 instead of u32 to store the 16-bit I/O address of the GPIO
registers so that it could support both Ivybridge and Tunnel Creek.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/x86/include/asm/arch-queensbay/gpio.h b/arch/x86/include/asm/arch-queensbay/gpio.h
new file mode 100644
index 0000000..ab4e059
--- /dev/null
+++ b/arch/x86/include/asm/arch-queensbay/gpio.h
@@ -0,0 +1,13 @@
+/*
+ * Copyright (C) 2014, Bin Meng <bmeng.cn@gmail.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef _X86_ARCH_GPIO_H_
+#define _X86_ARCH_GPIO_H_
+
+/* Where in config space is the register that points to the GPIO registers? */
+#define PCI_CFG_GPIOBASE 0x44
+
+#endif /* _X86_ARCH_GPIO_H_ */
diff --git a/arch/x86/include/asm/gpio.h b/arch/x86/include/asm/gpio.h
index 1787e52..1099427 100644
--- a/arch/x86/include/asm/gpio.h
+++ b/arch/x86/include/asm/gpio.h
@@ -11,7 +11,7 @@
#include <asm-generic/gpio.h>
struct ich6_bank_platdata {
- uint32_t base_addr;
+ uint16_t base_addr;
const char *bank_name;
};
@@ -147,7 +147,7 @@
} set3;
};
-void setup_pch_gpios(u32 gpiobase, const struct pch_gpio_map *gpio);
+void setup_pch_gpios(u16 gpiobase, const struct pch_gpio_map *gpio);
void ich_gpio_set_gpio_map(const struct pch_gpio_map *map);
#endif /* _X86_GPIO_H_ */