superio: Add SMSC SIO1007 driver

[u-boot] / include / smsc_sio1007.h

diff --git a/include/smsc_sio1007.h b/include/smsc_sio1007.h
new file mode 100644 (file)
index 0000000..805fa0e
--- /dev/null
+++ b/include/smsc_sio1007.h
@@ -0,0 +1,115 @@
+/*
+ * Copyright (C) 2016, Bin Meng <bmeng.cn@gmail.com>
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#ifndef _SMSC_SIO1007_H_
+#define _SMSC_SIO1007_H_
+
+/*
+ * The I/O base address of SIO1007 at power-up is determined by the SYSOPT0
+ * and SYSOPT1 pins at the deasserting edge of PCIRST#. The combination of
+ * SYSOPT0 and SYSOPT1 determines one of the following addresses.
+ */
+#define SIO1007_IOPORT0                0x002e
+#define SIO1007_IOPORT1                0x004e
+#define SIO1007_IOPORT2                0x162e
+#define SIO1007_IOPORT3                0x164e
+
+/* SIO1007 registers */
+
+#define DEV_POWER_CTRL         0x02
+#define UART1_POWER_ON         (1 << 3)
+#define UART2_POWER_ON         (1 << 7)
+
+#define UART1_IOBASE           0x24
+#define UART2_IOBASE           0x25
+#define UART_IRQ               0x28
+
+#define RTR_IOBASE_HIGH                0x21
+#define RTR_IOBASE_LOW         0x30
+
+#define GPIO0_DIR              0x31
+#define GPIO1_DIR              0x35
+#define GPIO_DIR_INPUT         0
+#define GPIO_DIR_OUTPUT                1
+
+#define GPIO0_POL              0x32
+#define GPIO1_POL              0x36
+#define GPIO_POL_NO_INVERT     0
+#define GPIO_POL_INVERT                1
+
+#define GPIO0_TYPE             0x33
+#define GPIO1_TYPE             0x37
+#define GPIO_TYPE_PUSH_PULL    0
+#define GPIO_TYPE_OPEN_DRAIN   1
+
+#define DEV_ACTIVATE           0x3a
+#define RTR_EN                 (1 << 1)
+
+/* Runtime register offset */
+
+#define GPIO0_DATA             0xc
+#define GPIO1_DATA             0xe
+
+/* Number of serial ports supported */
+#define SIO1007_UART_NUM       2
+
+/* Number of gpio pins supported */
+#define GPIO_NUM_PER_GROUP     8
+#define GPIO_GROUP_NUM         2
+#define SIO1007_GPIO_NUM       (GPIO_NUM_PER_GROUP * GPIO_GROUP_NUM)
+
+/**
+ * Configure the I/O port address of the specified serial device and
+ * enable the serial device.
+ *
+ * @port:      SIO1007 I/O port address
+ * @num:       serial device number (0 or 1)
+ * @iobase:    processor I/O port address to assign to this serial device
+ * @irq:       processor IRQ number to assign to this serial device
+ */
+void sio1007_enable_serial(int port, int num, int iobase, int irq);
+
+/**
+ * Configure the I/O port address of the runtime register block and
+ * enable the address decoding.
+ *
+ * @port:      SIO1007 I/O port address
+ * @iobase:    processor I/O port address to assign to the runtime registers
+ */
+void sio1007_enable_runtime(int port, int iobase);
+
+/**
+ * Configure the direction/polority/type of a specified GPIO pin
+ *
+ * @port:      SIO1007 I/O port address
+ * @gpio:      GPIO number (0-7 for GP10-GP17, 8-15 for GP30-GP37)
+ * @dir:       GPIO_DIR_INPUT or GPIO_DIR_OUTPUT
+ * @pol:       GPIO_POL_NO_INVERT or GPIO_POL_INVERT
+ * @type:      GPIO_TYPE_PUSH_PULL or GPIO_TYPE_OPEN_DRAIN
+ */
+void sio1007_gpio_config(int port, int gpio, int dir, int pol, int type);
+
+/**
+ * Get a GPIO pin value.
+ * This will work whether the GPIO is an input or an output.
+ *
+ * @port:      runtime register block I/O port address
+ * @gpio:      GPIO number (0-7 for GP10-GP17, 8-15 for GP30-GP37)
+ * @return:    0 if low, 1 if high, -EINVAL if gpio number is invalid
+ */
+int sio1007_gpio_get_value(int port, int gpio);
+
+/**
+ * Set a GPIO pin value.
+ * This will only work when the GPIO is configured as an output.
+ *
+ * @port:      runtime register block I/O port address
+ * @gpio:      GPIO number (0-7 for GP10-GP17, 8-15 for GP30-GP37)
+ * @val:       0 if low, 1 if high
+ */
+void sio1007_gpio_set_value(int port, int gpio, int val);
+
+#endif /* _SMSC_SIO1007_H_ */