+enum {
+ OMAP_I2C_REV_REG = 0, /* Only on IP V1 (OMAP34XX) */
+ OMAP_I2C_IE_REG, /* Only on IP V1 (OMAP34XX) */
+ OMAP_I2C_STAT_REG,
+ OMAP_I2C_WE_REG,
+ OMAP_I2C_SYSS_REG,
+ OMAP_I2C_BUF_REG,
+ OMAP_I2C_CNT_REG,
+ OMAP_I2C_DATA_REG,
+ OMAP_I2C_SYSC_REG,
+ OMAP_I2C_CON_REG,
+ OMAP_I2C_OA_REG,
+ OMAP_I2C_SA_REG,
+ OMAP_I2C_PSC_REG,
+ OMAP_I2C_SCLL_REG,
+ OMAP_I2C_SCLH_REG,
+ OMAP_I2C_SYSTEST_REG,
+ OMAP_I2C_BUFSTAT_REG,
+ /* Only on IP V2 (OMAP4430, etc.) */
+ OMAP_I2C_IP_V2_REVNB_LO,
+ OMAP_I2C_IP_V2_REVNB_HI,
+ OMAP_I2C_IP_V2_IRQSTATUS_RAW,
+ OMAP_I2C_IP_V2_IRQENABLE_SET,
+ OMAP_I2C_IP_V2_IRQENABLE_CLR,
+};
+
+static const u8 __maybe_unused reg_map_ip_v1[] = {
+ [OMAP_I2C_REV_REG] = 0x00,
+ [OMAP_I2C_IE_REG] = 0x04,
+ [OMAP_I2C_STAT_REG] = 0x08,
+ [OMAP_I2C_WE_REG] = 0x0c,
+ [OMAP_I2C_SYSS_REG] = 0x10,
+ [OMAP_I2C_BUF_REG] = 0x14,
+ [OMAP_I2C_CNT_REG] = 0x18,
+ [OMAP_I2C_DATA_REG] = 0x1c,
+ [OMAP_I2C_SYSC_REG] = 0x20,
+ [OMAP_I2C_CON_REG] = 0x24,
+ [OMAP_I2C_OA_REG] = 0x28,
+ [OMAP_I2C_SA_REG] = 0x2c,
+ [OMAP_I2C_PSC_REG] = 0x30,
+ [OMAP_I2C_SCLL_REG] = 0x34,
+ [OMAP_I2C_SCLH_REG] = 0x38,
+ [OMAP_I2C_SYSTEST_REG] = 0x3c,
+ [OMAP_I2C_BUFSTAT_REG] = 0x40,
+};
+
+static const u8 __maybe_unused reg_map_ip_v2[] = {
+ [OMAP_I2C_STAT_REG] = 0x28,
+ [OMAP_I2C_WE_REG] = 0x34,
+ [OMAP_I2C_SYSS_REG] = 0x90,
+ [OMAP_I2C_BUF_REG] = 0x94,
+ [OMAP_I2C_CNT_REG] = 0x98,
+ [OMAP_I2C_DATA_REG] = 0x9c,
+ [OMAP_I2C_SYSC_REG] = 0x10,
+ [OMAP_I2C_CON_REG] = 0xa4,
+ [OMAP_I2C_OA_REG] = 0xa8,
+ [OMAP_I2C_SA_REG] = 0xac,
+ [OMAP_I2C_PSC_REG] = 0xb0,
+ [OMAP_I2C_SCLL_REG] = 0xb4,
+ [OMAP_I2C_SCLH_REG] = 0xb8,
+ [OMAP_I2C_SYSTEST_REG] = 0xbc,
+ [OMAP_I2C_BUFSTAT_REG] = 0xc0,
+ [OMAP_I2C_IP_V2_REVNB_LO] = 0x00,
+ [OMAP_I2C_IP_V2_REVNB_HI] = 0x04,
+ [OMAP_I2C_IP_V2_IRQSTATUS_RAW] = 0x24,
+ [OMAP_I2C_IP_V2_IRQENABLE_SET] = 0x2c,
+ [OMAP_I2C_IP_V2_IRQENABLE_CLR] = 0x30,
+};
+
+struct omap_i2c {
+ struct udevice *clk;
+ int ip_rev;
+ struct i2c *regs;
+ unsigned int speed;
+ int waitdelay;
+ int clk_id;
+};
+
+static inline const u8 *omap_i2c_get_ip_reg_map(int ip_rev)
+{
+ switch (ip_rev) {
+ case OMAP_I2C_REV_V1:
+ return reg_map_ip_v1;
+ case OMAP_I2C_REV_V2:
+ /* Fall through... */
+ default:
+ return reg_map_ip_v2;
+ }
+}
+
+static inline void omap_i2c_write_reg(void __iomem *base, int ip_rev,
+ u16 val, int reg)
+{
+ writew(val, base + omap_i2c_get_ip_reg_map(ip_rev)[reg]);
+}
+
+static inline u16 omap_i2c_read_reg(void __iomem *base, int ip_rev, int reg)
+{
+ return readw(base + omap_i2c_get_ip_reg_map(ip_rev)[reg]);
+}
+