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-rw-r--r--arch/mips/include/asm/mach-rc32434/gpio.h79
1 files changed, 79 insertions, 0 deletions
diff --git a/arch/mips/include/asm/mach-rc32434/gpio.h b/arch/mips/include/asm/mach-rc32434/gpio.h
new file mode 100644
index 000000000..a3192da9f
--- /dev/null
+++ b/arch/mips/include/asm/mach-rc32434/gpio.h
@@ -0,0 +1,79 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright 2002 Integrated Device Technology, Inc.
+ * All rights reserved.
+ *
+ * GPIO register definition.
+ *
+ * Author : ryan.holmQVist@idt.com
+ * Date : 20011005
+ * Copyright (C) 2001, 2002 Ryan Holm <ryan.holmQVist@idt.com>
+ * Copyright (C) 2008 Florian Fainelli <florian@openwrt.org>
+ */
+
+#ifndef _RC32434_GPIO_H_
+#define _RC32434_GPIO_H_
+
+struct rb532_gpio_reg {
+ u32 gpiofunc; /* GPIO Function Register
+ * gpiofunc[x]==0 bit = gpio
+ * func[x]==1 bit = altfunc
+ */
+ u32 gpiocfg; /* GPIO Configuration Register
+ * gpiocfg[x]==0 bit = input
+ * gpiocfg[x]==1 bit = output
+ */
+ u32 gpiod; /* GPIO Data Register
+ * gpiod[x] read/write gpio pinX status
+ */
+ u32 gpioilevel; /* GPIO Interrupt Status Register
+ * interrupt level (see gpioistat)
+ */
+ u32 gpioistat; /* Gpio Interrupt Status Register
+ * istat[x] = (gpiod[x] == level[x])
+ * cleared in ISR (STICKY bits)
+ */
+ u32 gpionmien; /* GPIO Non-maskable Interrupt Enable Register */
+};
+
+/* UART GPIO signals */
+#define RC32434_UART0_SOUT (1 << 0)
+#define RC32434_UART0_SIN (1 << 1)
+#define RC32434_UART0_RTS (1 << 2)
+#define RC32434_UART0_CTS (1 << 3)
+
+/* M & P bus GPIO signals */
+#define RC32434_MP_BIT_22 (1 << 4)
+#define RC32434_MP_BIT_23 (1 << 5)
+#define RC32434_MP_BIT_24 (1 << 6)
+#define RC32434_MP_BIT_25 (1 << 7)
+
+/* CPU GPIO signals */
+#define RC32434_CPU_GPIO (1 << 8)
+
+/* Reserved GPIO signals */
+#define RC32434_AF_SPARE_6 (1 << 9)
+#define RC32434_AF_SPARE_4 (1 << 10)
+#define RC32434_AF_SPARE_3 (1 << 11)
+#define RC32434_AF_SPARE_2 (1 << 12)
+
+/* PCI messaging unit */
+#define RC32434_PCI_MSU_GPIO (1 << 13)
+
+/* NAND GPIO signals */
+#define GPIO_RDY 8
+#define GPIO_WPX 9
+#define GPIO_ALE 10
+#define GPIO_CLE 11
+
+/* Compact Flash GPIO pin */
+#define CF_GPIO_NUM 13
+
+/* S1 button GPIO (shared with UART0_SIN) */
+#define GPIO_BTN_S1 1
+
+extern void rb532_gpio_set_ilevel(int bit, unsigned gpio);
+extern void rb532_gpio_set_istat(int bit, unsigned gpio);
+extern void rb532_gpio_set_func(unsigned gpio);
+
+#endif /* _RC32434_GPIO_H_ */