#if defined(CONFIG_ORION5X)
#include <asm/arch/orion5x.h>
-#elif (defined(CONFIG_KIRKWOOD) || defined(CONFIG_ARMADA_XP))
+#elif (defined(CONFIG_KIRKWOOD) || defined(CONFIG_ARCH_MVEBU))
#include <asm/arch/soc.h>
#elif defined(CONFIG_SUNXI)
#include <asm/arch/i2c.h>
#define MVTWSI_CONTROL_TWSIEN 0x00000040
#define MVTWSI_CONTROL_INTEN 0x00000080
+/*
+ * On sun6i and newer IFLG is a write-clear bit which is cleared by writing 1,
+ * on other platforms it is a normal r/w bit which is cleared by writing 0.
+ */
+
+#ifdef CONFIG_SUNXI_GEN_SUN6I
+#define MVTWSI_CONTROL_CLEAR_IFLG 0x00000008
+#else
+#define MVTWSI_CONTROL_CLEAR_IFLG 0x00000000
+#endif
+
/*
* Status register values -- only those expected in normal master
* operation on non-10-bit-address devices; whatever status we don't
#ifdef CONFIG_I2C_MVTWSI_BASE4
case 4:
return (struct mvtwsi_registers *) CONFIG_I2C_MVTWSI_BASE4;
+#endif
+#ifdef CONFIG_I2C_MVTWSI_BASE5
+ case 5:
+ return (struct mvtwsi_registers *) CONFIG_I2C_MVTWSI_BASE5;
#endif
default:
printf("Missing mvtwsi controller %d base\n", adap->hwadapnr);
/* globally set TWSIEN in case it was not */
twsi_control_flags |= MVTWSI_CONTROL_TWSIEN;
/* assert START */
- writel(twsi_control_flags | MVTWSI_CONTROL_START, &twsi->control);
+ twsi_control_flags |= MVTWSI_CONTROL_START | MVTWSI_CONTROL_CLEAR_IFLG;
+ writel(twsi_control_flags, &twsi->control);
/* wait for controller to process START */
return twsi_wait(adap, expected_status);
}
/* put byte in data register for sending */
writel(byte, &twsi->data);
/* clear any pending interrupt -- that'll cause sending */
- writel(twsi_control_flags, &twsi->control);
+ writel(twsi_control_flags | MVTWSI_CONTROL_CLEAR_IFLG, &twsi->control);
/* wait for controller to receive byte and check ACK */
return twsi_wait(adap, expected_status);
}
else
expected_status = MVTWSI_STATUS_DATA_R_NAK;
/* acknowledge *previous state* and launch receive */
- writel(twsi_control_flags, &twsi->control);
+ writel(twsi_control_flags | MVTWSI_CONTROL_CLEAR_IFLG, &twsi->control);
/* wait for controller to receive byte and assert ACK or NAK */
status = twsi_wait(adap, expected_status);
/* if we did receive expected byte then store it */
/* assert STOP */
control = MVTWSI_CONTROL_TWSIEN | MVTWSI_CONTROL_STOP;
- writel(control, &twsi->control);
+ writel(control | MVTWSI_CONTROL_CLEAR_IFLG, &twsi->control);
/* wait for IDLE; IFLG won't rise so twsi_wait() is no use. */
do {
stop_status = readl(&twsi->status);
CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE, 4)
#endif
+#ifdef CONFIG_I2C_MVTWSI_BASE5
+U_BOOT_I2C_ADAP_COMPLETE(twsi5, twsi_i2c_init, twsi_i2c_probe,
+ twsi_i2c_read, twsi_i2c_write,
+ twsi_i2c_set_bus_speed,
+ CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE, 5)
+
+#endif