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i2c: samsung: register i2c busses for Exynso5420 and Exynos5250
authorNaveen Krishna Ch <ch.naveen@samsung.com>
Fri, 6 Dec 2013 06:42:38 +0000 (12:12 +0530)
committerHeiko Schocher <hs@denx.de>
Fri, 6 Dec 2013 06:46:23 +0000 (07:46 +0100)
This patch adds the U_BOOT_I2C_ADAP_COMPLETE defines for channels
on Exynos5420 and Exynos5250 and also adds support for init function
for hsi2c channels

Signed-off-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com>
README patch | blob | history
drivers/i2c/s3c24x0_i2c.c patch | blob | history

diff --git a/README b/README
index 265e81e041ec063f29e6c75830efb8a41322c972..3c233db068c42e004c2350efecc40586ca149b8b 100644 (file)
--- a/README
+++ b/README
@@ -2125,6 +2125,12 @@ CBFS (Coreboot Filesystem) support
                  - set CONFIG_SYS_I2C_ZYNQ_SPEED for speed setting
                  - set CONFIG_SYS_I2C_ZYNQ_SLAVE for slave addr
 
+               - drivers/i2c/s3c24x0_i2c.c:
+                 - activate this driver with CONFIG_SYS_I2C_S3C24X0
+                 - This driver adds i2c buses (11 for Exynos5250, Exynos5420
+                   9 i2c buses for Exynos4 and 1 for S3C24X0 SoCs from Samsung)
+                   with a fix speed from 100000 and the slave addr 0!
+
                additional defines:
 
                CONFIG_SYS_NUM_I2C_BUSES
diff --git a/drivers/i2c/s3c24x0_i2c.c b/drivers/i2c/s3c24x0_i2c.c
index 1e9dba0b9332b2eb16b3701493c049b1bfb22485..fd328f054940f3beb2214b76c4f103c9b06377a3 100644 (file)
--- a/drivers/i2c/s3c24x0_i2c.c
+++ b/drivers/i2c/s3c24x0_i2c.c
@@ -721,6 +721,17 @@ static unsigned int s3c24x0_i2c_set_bus_speed(struct i2c_adapter *adap,
        return 0;
 }
 
+#ifdef CONFIG_EXYNOS5
+static void exynos_i2c_init(struct i2c_adapter *adap, int speed, int slaveaddr)
+{
+       /* This will override the speed selected in the fdt for that port */
+       debug("i2c_init(speed=%u, slaveaddr=0x%x)\n", speed, slaveaddr);
+       if (i2c_set_bus_speed(speed))
+               printf("i2c_init: failed to init bus %d for speed = %d\n",
+                                               adap->hwadapnr, speed);
+}
+#endif
+
 /*
  * cmd_type is 0 for write, 1 for read.
  *
@@ -1071,51 +1082,168 @@ int i2c_reset_port_fdt(const void *blob, int node)
 /*
  * Register s3c24x0 i2c adapters
  */
-U_BOOT_I2C_ADAP_COMPLETE(s3c24x0_0, s3c24x0_i2c_init, s3c24x0_i2c_probe,
-                        s3c24x0_i2c_read, s3c24x0_i2c_write,
-                        s3c24x0_i2c_set_bus_speed,
-                        CONFIG_SYS_I2C_S3C24X0_SPEED,
-                        CONFIG_SYS_I2C_S3C24X0_SLAVE,
-                        0)
-U_BOOT_I2C_ADAP_COMPLETE(s3c24x0_1, s3c24x0_i2c_init, s3c24x0_i2c_probe,
-                        s3c24x0_i2c_read, s3c24x0_i2c_write,
-                        s3c24x0_i2c_set_bus_speed,
-                        CONFIG_SYS_I2C_S3C24X0_SPEED,
-                        CONFIG_SYS_I2C_S3C24X0_SLAVE,
-                        1)
-U_BOOT_I2C_ADAP_COMPLETE(s3c24x0_2, s3c24x0_i2c_init, s3c24x0_i2c_probe,
-                        s3c24x0_i2c_read, s3c24x0_i2c_write,
-                        s3c24x0_i2c_set_bus_speed,
-                        CONFIG_SYS_I2C_S3C24X0_SPEED,
-                        CONFIG_SYS_I2C_S3C24X0_SLAVE,
-                        2)
-U_BOOT_I2C_ADAP_COMPLETE(s3c24x0_3, s3c24x0_i2c_init, s3c24x0_i2c_probe,
-                        s3c24x0_i2c_read, s3c24x0_i2c_write,
-                        s3c24x0_i2c_set_bus_speed,
-                        CONFIG_SYS_I2C_S3C24X0_SPEED,
-                        CONFIG_SYS_I2C_S3C24X0_SLAVE,
-                        3)
-U_BOOT_I2C_ADAP_COMPLETE(s3c24x0_4, s3c24x0_i2c_init, s3c24x0_i2c_probe,
-                        s3c24x0_i2c_read, s3c24x0_i2c_write,
-                        s3c24x0_i2c_set_bus_speed,
-                        CONFIG_SYS_I2C_S3C24X0_SPEED,
-                        CONFIG_SYS_I2C_S3C24X0_SLAVE,
-                        4)
-U_BOOT_I2C_ADAP_COMPLETE(s3c24x0_5, s3c24x0_i2c_init, s3c24x0_i2c_probe,
-                        s3c24x0_i2c_read, s3c24x0_i2c_write,
-                        s3c24x0_i2c_set_bus_speed,
-                        CONFIG_SYS_I2C_S3C24X0_SPEED,
-                        CONFIG_SYS_I2C_S3C24X0_SLAVE,
-                        5)
-U_BOOT_I2C_ADAP_COMPLETE(s3c24x0_6, s3c24x0_i2c_init, s3c24x0_i2c_probe,
-                        s3c24x0_i2c_read, s3c24x0_i2c_write,
-                        s3c24x0_i2c_set_bus_speed,
-                        CONFIG_SYS_I2C_S3C24X0_SPEED,
-                        CONFIG_SYS_I2C_S3C24X0_SLAVE,
-                        6)
-U_BOOT_I2C_ADAP_COMPLETE(s3c24x0_7, s3c24x0_i2c_init, s3c24x0_i2c_probe,
-                        s3c24x0_i2c_read, s3c24x0_i2c_write,
-                        s3c24x0_i2c_set_bus_speed,
-                        CONFIG_SYS_I2C_S3C24X0_SPEED,
-                        CONFIG_SYS_I2C_S3C24X0_SLAVE,
-                        7)
+#if defined(CONFIG_EXYNOS5420)
+U_BOOT_I2C_ADAP_COMPLETE(i2c00, s3c24x0_i2c_init, s3c24x0_i2c_probe,
+                       s3c24x0_i2c_read, s3c24x0_i2c_write,
+                       s3c24x0_i2c_set_bus_speed,
+                       CONFIG_SYS_I2C_S3C24X0_SPEED,
+                       CONFIG_SYS_I2C_S3C24X0_SLAVE, 0)
+U_BOOT_I2C_ADAP_COMPLETE(i2c01, s3c24x0_i2c_init, s3c24x0_i2c_probe,
+                       s3c24x0_i2c_read, s3c24x0_i2c_write,
+                       s3c24x0_i2c_set_bus_speed,
+                       CONFIG_SYS_I2C_S3C24X0_SPEED,
+                       CONFIG_SYS_I2C_S3C24X0_SLAVE, 1)
+U_BOOT_I2C_ADAP_COMPLETE(i2c02, s3c24x0_i2c_init, s3c24x0_i2c_probe,
+                       s3c24x0_i2c_read, s3c24x0_i2c_write,
+                       s3c24x0_i2c_set_bus_speed,
+                       CONFIG_SYS_I2C_S3C24X0_SPEED,
+                       CONFIG_SYS_I2C_S3C24X0_SLAVE, 2)
+U_BOOT_I2C_ADAP_COMPLETE(i2c03, exynos_i2c_init, s3c24x0_i2c_probe,
+                       s3c24x0_i2c_read, s3c24x0_i2c_write,
+                       s3c24x0_i2c_set_bus_speed,
+                       CONFIG_SYS_I2C_S3C24X0_SPEED,
+                       CONFIG_SYS_I2C_S3C24X0_SLAVE, 3)
+U_BOOT_I2C_ADAP_COMPLETE(i2c04, exynos_i2c_init, s3c24x0_i2c_probe,
+                       s3c24x0_i2c_read, s3c24x0_i2c_write,
+                       s3c24x0_i2c_set_bus_speed,
+                       CONFIG_SYS_I2C_S3C24X0_SPEED,
+                       CONFIG_SYS_I2C_S3C24X0_SLAVE, 4)
+U_BOOT_I2C_ADAP_COMPLETE(i2c05, exynos_i2c_init, s3c24x0_i2c_probe,
+                       s3c24x0_i2c_read, s3c24x0_i2c_write,
+                       s3c24x0_i2c_set_bus_speed,
+                       CONFIG_SYS_I2C_S3C24X0_SPEED,
+                       CONFIG_SYS_I2C_S3C24X0_SLAVE, 5)
+U_BOOT_I2C_ADAP_COMPLETE(i2c06, exynos_i2c_init, s3c24x0_i2c_probe,
+                       s3c24x0_i2c_read, s3c24x0_i2c_write,
+                       s3c24x0_i2c_set_bus_speed,
+                       CONFIG_SYS_I2C_S3C24X0_SPEED,
+                       CONFIG_SYS_I2C_S3C24X0_SLAVE, 6)
+U_BOOT_I2C_ADAP_COMPLETE(i2c07, exynos_i2c_init, s3c24x0_i2c_probe,
+                       s3c24x0_i2c_read, s3c24x0_i2c_write,
+                       s3c24x0_i2c_set_bus_speed,
+                       CONFIG_SYS_I2C_S3C24X0_SPEED,
+                       CONFIG_SYS_I2C_S3C24X0_SLAVE, 7)
+U_BOOT_I2C_ADAP_COMPLETE(i2c08, exynos_i2c_init, s3c24x0_i2c_probe,
+                       s3c24x0_i2c_read, s3c24x0_i2c_write,
+                       s3c24x0_i2c_set_bus_speed,
+                       CONFIG_SYS_I2C_S3C24X0_SPEED,
+                       CONFIG_SYS_I2C_S3C24X0_SLAVE, 8)
+U_BOOT_I2C_ADAP_COMPLETE(i2c09, exynos_i2c_init, s3c24x0_i2c_probe,
+                       s3c24x0_i2c_read, s3c24x0_i2c_write,
+                       s3c24x0_i2c_set_bus_speed,
+                       CONFIG_SYS_I2C_S3C24X0_SPEED,
+                       CONFIG_SYS_I2C_S3C24X0_SLAVE, 9)
+U_BOOT_I2C_ADAP_COMPLETE(i2c10, exynos_i2c_init, s3c24x0_i2c_probe,
+                       s3c24x0_i2c_read, s3c24x0_i2c_write,
+                       s3c24x0_i2c_set_bus_speed,
+                       CONFIG_SYS_I2C_S3C24X0_SPEED,
+                       CONFIG_SYS_I2C_S3C24X0_SLAVE, 10)
+#elif defined(CONFIG_EXYNOS5250)
+U_BOOT_I2C_ADAP_COMPLETE(i2c00, exynos_i2c_init, s3c24x0_i2c_probe,
+                       s3c24x0_i2c_read, s3c24x0_i2c_write,
+                       s3c24x0_i2c_set_bus_speed,
+                       CONFIG_SYS_I2C_S3C24X0_SPEED,
+                       CONFIG_SYS_I2C_S3C24X0_SLAVE, 0)
+U_BOOT_I2C_ADAP_COMPLETE(i2c01, exynos_i2c_init, s3c24x0_i2c_probe,
+                       s3c24x0_i2c_read, s3c24x0_i2c_write,
+                       s3c24x0_i2c_set_bus_speed,
+                       CONFIG_SYS_I2C_S3C24X0_SPEED,
+                       CONFIG_SYS_I2C_S3C24X0_SLAVE, 1)
+U_BOOT_I2C_ADAP_COMPLETE(i2c02, exynos_i2c_init, s3c24x0_i2c_probe,
+                       s3c24x0_i2c_read, s3c24x0_i2c_write,
+                       s3c24x0_i2c_set_bus_speed,
+                       CONFIG_SYS_I2C_S3C24X0_SPEED,
+                       CONFIG_SYS_I2C_S3C24X0_SLAVE, 2)
+U_BOOT_I2C_ADAP_COMPLETE(i2c03, exynos_i2c_init, s3c24x0_i2c_probe,
+                       s3c24x0_i2c_read, s3c24x0_i2c_write,
+                       s3c24x0_i2c_set_bus_speed,
+                       CONFIG_SYS_I2C_S3C24X0_SPEED,
+                       CONFIG_SYS_I2C_S3C24X0_SLAVE, 3)
+U_BOOT_I2C_ADAP_COMPLETE(i2c04, s3c24x0_i2c_init, s3c24x0_i2c_probe,
+                       s3c24x0_i2c_read, s3c24x0_i2c_write,
+                       s3c24x0_i2c_set_bus_speed,
+                       CONFIG_SYS_I2C_S3C24X0_SPEED,
+                       CONFIG_SYS_I2C_S3C24X0_SLAVE, 4)
+U_BOOT_I2C_ADAP_COMPLETE(i2c05, s3c24x0_i2c_init, s3c24x0_i2c_probe,
+                       s3c24x0_i2c_read, s3c24x0_i2c_write,
+                       s3c24x0_i2c_set_bus_speed,
+                       CONFIG_SYS_I2C_S3C24X0_SPEED,
+                       CONFIG_SYS_I2C_S3C24X0_SLAVE, 5)
+U_BOOT_I2C_ADAP_COMPLETE(i2c06, s3c24x0_i2c_init, s3c24x0_i2c_probe,
+                       s3c24x0_i2c_read, s3c24x0_i2c_write,
+                       s3c24x0_i2c_set_bus_speed,
+                       CONFIG_SYS_I2C_S3C24X0_SPEED,
+                       CONFIG_SYS_I2C_S3C24X0_SLAVE, 6)
+U_BOOT_I2C_ADAP_COMPLETE(i2c07, s3c24x0_i2c_init, s3c24x0_i2c_probe,
+                       s3c24x0_i2c_read, s3c24x0_i2c_write,
+                       s3c24x0_i2c_set_bus_speed,
+                       CONFIG_SYS_I2C_S3C24X0_SPEED,
+                       CONFIG_SYS_I2C_S3C24X0_SLAVE, 7)
+U_BOOT_I2C_ADAP_COMPLETE(i2c08, s3c24x0_i2c_init, s3c24x0_i2c_probe,
+                       s3c24x0_i2c_read, s3c24x0_i2c_write,
+                       s3c24x0_i2c_set_bus_speed,
+                       CONFIG_SYS_I2C_S3C24X0_SPEED,
+                       CONFIG_SYS_I2C_S3C24X0_SLAVE, 8)
+U_BOOT_I2C_ADAP_COMPLETE(i2c09, s3c24x0_i2c_init, s3c24x0_i2c_probe,
+                       s3c24x0_i2c_read, s3c24x0_i2c_write,
+                       s3c24x0_i2c_set_bus_speed,
+                       CONFIG_SYS_I2C_S3C24X0_SPEED,
+                       CONFIG_SYS_I2C_S3C24X0_SLAVE, 9)
+U_BOOT_I2C_ADAP_COMPLETE(s3c10, s3c24x0_i2c_init, s3c24x0_i2c_probe,
+                       s3c24x0_i2c_read, s3c24x0_i2c_write,
+                       s3c24x0_i2c_set_bus_speed,
+                       CONFIG_SYS_I2C_S3C24X0_SPEED,
+                       CONFIG_SYS_I2C_S3C24X0_SLAVE, 10)
+#elif defined(CONFIG_EXYNOS4)
+U_BOOT_I2C_ADAP_COMPLETE(i2c00, s3c24x0_i2c_init, s3c24x0_i2c_probe,
+                       s3c24x0_i2c_read, s3c24x0_i2c_write,
+                       s3c24x0_i2c_set_bus_speed,
+                       CONFIG_SYS_I2C_S3C24X0_SPEED,
+                       CONFIG_SYS_I2C_S3C24X0_SLAVE, 0)
+U_BOOT_I2C_ADAP_COMPLETE(i2c01, s3c24x0_i2c_init, s3c24x0_i2c_probe,
+                       s3c24x0_i2c_read, s3c24x0_i2c_write,
+                       s3c24x0_i2c_set_bus_speed,
+                       CONFIG_SYS_I2C_S3C24X0_SPEED,
+                       CONFIG_SYS_I2C_S3C24X0_SLAVE, 1)
+U_BOOT_I2C_ADAP_COMPLETE(i2c02, s3c24x0_i2c_init, s3c24x0_i2c_probe,
+                       s3c24x0_i2c_read, s3c24x0_i2c_write,
+                       s3c24x0_i2c_set_bus_speed,
+                       CONFIG_SYS_I2C_S3C24X0_SPEED,
+                       CONFIG_SYS_I2C_S3C24X0_SLAVE, 2)
+U_BOOT_I2C_ADAP_COMPLETE(i2c03, s3c24x0_i2c_init, s3c24x0_i2c_probe,
+                       s3c24x0_i2c_read, s3c24x0_i2c_write,
+                       s3c24x0_i2c_set_bus_speed,
+                       CONFIG_SYS_I2C_S3C24X0_SPEED,
+                       CONFIG_SYS_I2C_S3C24X0_SLAVE, 3)
+U_BOOT_I2C_ADAP_COMPLETE(i2c04, s3c24x0_i2c_init, s3c24x0_i2c_probe,
+                       s3c24x0_i2c_read, s3c24x0_i2c_write,
+                       s3c24x0_i2c_set_bus_speed,
+                       CONFIG_SYS_I2C_S3C24X0_SPEED,
+                       CONFIG_SYS_I2C_S3C24X0_SLAVE, 4)
+U_BOOT_I2C_ADAP_COMPLETE(i2c05, s3c24x0_i2c_init, s3c24x0_i2c_probe,
+                       s3c24x0_i2c_read, s3c24x0_i2c_write,
+                       s3c24x0_i2c_set_bus_speed,
+                       CONFIG_SYS_I2C_S3C24X0_SPEED,
+                       CONFIG_SYS_I2C_S3C24X0_SLAVE, 5)
+U_BOOT_I2C_ADAP_COMPLETE(i2c06, s3c24x0_i2c_init, s3c24x0_i2c_probe,
+                       s3c24x0_i2c_read, s3c24x0_i2c_write,
+                       s3c24x0_i2c_set_bus_speed,
+                       CONFIG_SYS_I2C_S3C24X0_SPEED,
+                       CONFIG_SYS_I2C_S3C24X0_SLAVE, 6)
+U_BOOT_I2C_ADAP_COMPLETE(i2c07, s3c24x0_i2c_init, s3c24x0_i2c_probe,
+                       s3c24x0_i2c_read, s3c24x0_i2c_write,
+                       s3c24x0_i2c_set_bus_speed,
+                       CONFIG_SYS_I2C_S3C24X0_SPEED,
+                       CONFIG_SYS_I2C_S3C24X0_SLAVE, 7)
+U_BOOT_I2C_ADAP_COMPLETE(i2c08, s3c24x0_i2c_init, s3c24x0_i2c_probe,
+                       s3c24x0_i2c_read, s3c24x0_i2c_write,
+                       s3c24x0_i2c_set_bus_speed,
+                       CONFIG_SYS_I2C_S3C24X0_SPEED,
+                       CONFIG_SYS_I2C_S3C24X0_SLAVE, 8)
+#else
+U_BOOT_I2C_ADAP_COMPLETE(s3c0, s3c24x0_i2c_init, s3c24x0_i2c_probe,
+                       s3c24x0_i2c_read, s3c24x0_i2c_write,
+                       s3c24x0_i2c_set_bus_speed,
+                       CONFIG_SYS_I2C_S3C24X0_SPEED,
+                       CONFIG_SYS_I2C_S3C24X0_SLAVE, 0)
+#endif
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