Patchwork [U-Boot] omap24xx_i2c: Handle OMAP5 like OMAP2,3,4

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Submitter Vincent Stehlé
Date Dec. 3, 2012, 4:07 p.m.
Message ID <1354550841-32319-1-git-send-email-v-stehle@ti.com>
Download mbox | patch
Permalink /patch/203390/
State Accepted
Delegated to: Heiko Schocher
Headers show

Comments

Vincent Stehlé - Dec. 3, 2012, 4:07 p.m.
OMAP5 has 8b i2c data register field, like OMAP2, 3 and 4. Handle in the same
way. This fixes the following error on OMAP5:

  OMAP5430 EVM # mmc rescan
  timed out in wait_for_bb: I2C_STAT=1410
  twl6035: could not turn on LDO9.

Signed-off-by: Vincent Stehlé <v-stehle@ti.com>
---
 drivers/i2c/omap24xx_i2c.c |   15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

Patch

diff --git a/drivers/i2c/omap24xx_i2c.c b/drivers/i2c/omap24xx_i2c.c
index 1bbb2ca..54e9b15 100644
--- a/drivers/i2c/omap24xx_i2c.c
+++ b/drivers/i2c/omap24xx_i2c.c
@@ -180,7 +180,8 @@  static int i2c_read_byte(u8 devaddr, u16 regoffset, u8 alen, u8 *value)
 		if (status & I2C_STAT_XRDY) {
 			w = tmpbuf[i++];
 #if !(defined(CONFIG_OMAP243X) || defined(CONFIG_OMAP34XX) || \
-	defined(CONFIG_OMAP44XX) || defined(CONFIG_AM33XX))
+	defined(CONFIG_OMAP44XX) || defined(CONFIG_AM33XX) || \
+	defined(CONFIG_OMAP54XX))
 			w |= tmpbuf[i++] << 8;
 #endif
 			writew(w, &i2c_base->data);
@@ -210,7 +211,8 @@  static int i2c_read_byte(u8 devaddr, u16 regoffset, u8 alen, u8 *value)
 		}
 		if (status & I2C_STAT_RRDY) {
 #if defined(CONFIG_OMAP243X) || defined(CONFIG_OMAP34XX) || \
-	defined(CONFIG_OMAP44XX) || defined(CONFIG_AM33XX)
+	defined(CONFIG_OMAP44XX) || defined(CONFIG_AM33XX) || \
+	defined(CONFIG_OMAP54XX)
 			*value = readb(&i2c_base->data);
 #else
 			*value = readw(&i2c_base->data);
@@ -240,7 +242,8 @@  static void flush_fifo(void)
 		stat = readw(&i2c_base->stat);
 		if (stat == I2C_STAT_RRDY) {
 #if defined(CONFIG_OMAP243X) || defined(CONFIG_OMAP34XX) || \
-	defined(CONFIG_OMAP44XX) || defined(CONFIG_AM33XX)
+	defined(CONFIG_OMAP44XX) || defined(CONFIG_AM33XX) || \
+	defined(CONFIG_OMAP54XX)
 			readb(&i2c_base->data);
 #else
 			readw(&i2c_base->data);
@@ -294,7 +297,8 @@  int i2c_probe(uchar chip)
 		if (status & I2C_STAT_RRDY) {
 			res = 0;
 #if defined(CONFIG_OMAP243X) || defined(CONFIG_OMAP34XX) || \
-    defined(CONFIG_OMAP44XX) || defined(CONFIG_AM33XX)
+	defined(CONFIG_OMAP44XX) || defined(CONFIG_AM33XX) || \
+	defined(CONFIG_OMAP54XX)
 			readb(&i2c_base->data);
 #else
 			readw(&i2c_base->data);
@@ -382,7 +386,8 @@  int i2c_write(uchar chip, uint addr, int alen, uchar *buffer, int len)
 		if (status & I2C_STAT_XRDY) {
 			w = (i < 0) ? tmpbuf[2+i] : buffer[i];
 #if !(defined(CONFIG_OMAP243X) || defined(CONFIG_OMAP34XX) || \
-	defined(CONFIG_OMAP44XX) || defined(CONFIG_AM33XX))
+	defined(CONFIG_OMAP44XX) || defined(CONFIG_AM33XX) || \
+	defined(CONFIG_OMAP54XX))
 			w |= ((++i < 0) ? tmpbuf[2+i] : buffer[i]) << 8;
 #endif
 			writew(w, &i2c_base->data);