2 files changed, 89 insertions, 0 deletions

diff --git a/arch/arm/plat-s3c/include/plat/iic.h b/arch/arm/plat-s3c/include/plat/iic.h
new file mode 100644
index 000000000000..5106acaa1d0e
--- /dev/null
+++ b/arch/arm/plat-s3c/include/plat/iic.h
@@ -0,0 +1,33 @@
+/* arch/arm/mach-s3c2410/include/mach/iic.h
+ *
+ * Copyright (c) 2004 Simtec Electronics
+ *      Ben Dooks <ben@simtec.co.uk>
+ *
+ * S3C2410 - I2C Controller platfrom_device info
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#ifndef __ASM_ARCH_IIC_H
+#define __ASM_ARCH_IIC_H __FILE__
+
+#define S3C_IICFLG_FILTER       (1<<0)  /* enable s3c2440 filter */
+
+/* Notes:
+ *      1) All frequencies are expressed in Hz
+ *      2) A value of zero is `do not care`
+*/
+
+struct s3c2410_platform_i2c {
+        int             bus_num;        /* bus number to use */
+        unsigned int    flags;
+        unsigned int    slave_addr;     /* slave address for controller */
+        unsigned long   bus_freq;       /* standard bus frequency */
+        unsigned long   max_freq;       /* max frequency for the bus */
+        unsigned long   min_freq;       /* min frequency for the bus */
+        unsigned int    sda_delay;      /* pclks (s3c2440 only) */
+};
+
+#endif /* __ASM_ARCH_IIC_H */
diff --git a/arch/arm/plat-s3c/include/plat/regs-iic.h b/arch/arm/plat-s3c/include/plat/regs-iic.h
new file mode 100644
index 000000000000..2f7c17de8ac8
--- /dev/null
+++ b/arch/arm/plat-s3c/include/plat/regs-iic.h
@@ -0,0 +1,56 @@
+/* arch/arm/mach-s3c2410/include/mach/regs-iic.h
+ *
+ * Copyright (c) 2004 Simtec Electronics <linux@simtec.co.uk>
+ *              http://www.simtec.co.uk/products/SWLINUX/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * S3C2410 I2C Controller
+*/
+
+#ifndef __ASM_ARCH_REGS_IIC_H
+#define __ASM_ARCH_REGS_IIC_H __FILE__
+
+/* see s3c2410x user guide, v1.1, section 9 (p447) for more info */
+
+#define S3C2410_IICREG(x) (x)
+
+#define S3C2410_IICCON    S3C2410_IICREG(0x00)
+#define S3C2410_IICSTAT   S3C2410_IICREG(0x04)
+#define S3C2410_IICADD    S3C2410_IICREG(0x08)
+#define S3C2410_IICDS     S3C2410_IICREG(0x0C)
+#define S3C2440_IICLC     S3C2410_IICREG(0x10)
+
+#define S3C2410_IICCON_ACKEN            (1<<7)
+#define S3C2410_IICCON_TXDIV_16         (0<<6)
+#define S3C2410_IICCON_TXDIV_512        (1<<6)
+#define S3C2410_IICCON_IRQEN            (1<<5)
+#define S3C2410_IICCON_IRQPEND          (1<<4)
+#define S3C2410_IICCON_SCALE(x)         ((x)&15)
+#define S3C2410_IICCON_SCALEMASK        (0xf)
+
+#define S3C2410_IICSTAT_MASTER_RX       (2<<6)
+#define S3C2410_IICSTAT_MASTER_TX       (3<<6)
+#define S3C2410_IICSTAT_SLAVE_RX        (0<<6)
+#define S3C2410_IICSTAT_SLAVE_TX        (1<<6)
+#define S3C2410_IICSTAT_MODEMASK        (3<<6)
+
+#define S3C2410_IICSTAT_START           (1<<5)
+#define S3C2410_IICSTAT_BUSBUSY         (1<<5)
+#define S3C2410_IICSTAT_TXRXEN          (1<<4)
+#define S3C2410_IICSTAT_ARBITR          (1<<3)
+#define S3C2410_IICSTAT_ASSLAVE         (1<<2)
+#define S3C2410_IICSTAT_ADDR0           (1<<1)
+#define S3C2410_IICSTAT_LASTBIT         (1<<0)
+
+#define S3C2410_IICLC_SDA_DELAY0        (0 << 0)
+#define S3C2410_IICLC_SDA_DELAY5        (1 << 0)
+#define S3C2410_IICLC_SDA_DELAY10       (2 << 0)
+#define S3C2410_IICLC_SDA_DELAY15       (3 << 0)
+#define S3C2410_IICLC_SDA_DELAY_MASK    (3 << 0)
+
+#define S3C2410_IICLC_FILTER_ON         (1<<2)
+
+#endif /* __ASM_ARCH_REGS_IIC_H */