This adds multiple i2c channel support for I2C.
Signed-off-by: Alim Akhtar <alim.akh...@samsung.com>
Signed-off-by: Rajeshwari Shinde <rajeshwar...@samsung.com>
Acked-by: Simon Glass <s...@chromium.org>
---
Changes in V2:
- None
Changes in V3:
- None
Changes in V4:
- None
Changes in V5:
- Pinmux setting of all bus done during board init.
Changes in V6:
- None
drivers/i2c/s3c24x0_i2c.c | 27 +++++++++++++++++++++++++++
1 files changed, 27 insertions(+), 0 deletions(-)
diff --git a/drivers/i2c/s3c24x0_i2c.c b/drivers/i2c/s3c24x0_i2c.c
index 421c7dd..39a0365 100644
--- a/drivers/i2c/s3c24x0_i2c.c
+++ b/drivers/i2c/s3c24x0_i2c.c
@@ -158,6 +158,33 @@ static void i2c_ch_init(struct s3c24x0_i2c *i2c, int
speed, int slaveadd)
writel(I2C_MODE_MT | I2C_TXRX_ENA, &i2c->iicstat);
}
+/*
+ * MULTI BUS I2C support
+ */
+
+#ifdef CONFIG_I2C_MULTI_BUS
+int i2c_set_bus_num(unsigned int bus)
+{
+ struct s3c24x0_i2c *i2c;
+
+ if ((bus < 0) || (bus >= CONFIG_MAX_I2C_NUM)) {
+ debug("Bad bus: %d\n", bus);
+ return -1;
+ }
+
+ g_current_bus = bus;
+ i2c = get_base_i2c();
+ i2c_ch_init(i2c, CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
+
+ return 0;
+}
+
+unsigned int i2c_get_bus_num(void)
+{
+ return g_current_bus;
+}
+#endif
+
void i2c_init(int speed, int slaveadd)
{
struct s3c24x0_i2c *i2c = get_base_i2c();
--
1.7.4.4
_______________________________________________
U-Boot mailing list
U-Boot@lists.denx.de
http://lists.denx.de/mailman/listinfo/u-boot
