1. Compliant with Philips I2C specification version 2.1 2. Supports upto 100Kbps in standard mode
Signed-off-by: Chandan Nath chandan.nath@ti.com Signed-off-by: Patil, Rachna rachna@ti.com --- Changes for v3: rebased, patches applied on top of master branch
drivers/i2c/omap24xx_i2c.c | 20 +++++++++++++------- 1 files changed, 13 insertions(+), 7 deletions(-)
diff --git a/drivers/i2c/omap24xx_i2c.c b/drivers/i2c/omap24xx_i2c.c index 80932ef..f06af02 100644 --- a/drivers/i2c/omap24xx_i2c.c +++ b/drivers/i2c/omap24xx_i2c.c @@ -147,7 +147,7 @@ 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_OMAP44XX) || defined(CONFIG_AM33XX) readb(&i2c_base->data); #else readw(&i2c_base->data); @@ -247,7 +247,8 @@ int i2c_read(uchar chip, uint addr, int alen, uchar *buffer, int len) switch (alen) { case 2: /* Send address MSByte */ -#if defined(CONFIG_OMAP243X) || defined(CONFIG_OMAP34XX) +#if defined(CONFIG_OMAP243X) || defined(CONFIG_OMAP34XX) || \ + defined(CONFIG_AM33XX) writew(((addr >> 8) & 0xFF), &i2c_base->data);
/* Clearing XRDY event */ @@ -264,7 +265,8 @@ int i2c_read(uchar chip, uint addr, int alen, uchar *buffer, int len) } #endif case 1: -#if defined(CONFIG_OMAP243X) || defined(CONFIG_OMAP34XX) +#if defined(CONFIG_OMAP243X) || defined(CONFIG_OMAP34XX) || \ + defined(CONFIG_AM33XX) /* Send address LSByte */ writew((addr & 0xFF), &i2c_base->data); #else @@ -313,7 +315,8 @@ int i2c_read(uchar chip, uint addr, int alen, uchar *buffer, int len) }
if (status & I2C_STAT_RRDY) { -#if defined(CONFIG_OMAP243X) || defined(CONFIG_OMAP34XX) +#if defined(CONFIG_OMAP243X) || defined(CONFIG_OMAP34XX) || \ + defined(CONFIG_AM33XX) buffer[i] = readb(&i2c_base->data); #else *((u16 *)&buffer[i]) = @@ -400,7 +403,8 @@ int i2c_write(uchar chip, uint addr, int alen, uchar *buffer, int len) if (!i2c_error) { if (status & I2C_STAT_XRDY) { switch (alen) { -#if defined(CONFIG_OMAP243X) || defined(CONFIG_OMAP34XX) +#if defined(CONFIG_OMAP243X) || defined(CONFIG_OMAP34XX) || \ + defined(CONFIG_AM33XX) case 2: /* send out MSB byte */ writeb(((addr >> 8) & 0xFF), &i2c_base->data); @@ -420,7 +424,8 @@ int i2c_write(uchar chip, uint addr, int alen, uchar *buffer, int len) break; } case 1: -#if defined(CONFIG_OMAP243X) || defined(CONFIG_OMAP34XX) +#if defined(CONFIG_OMAP243X) || defined(CONFIG_OMAP34XX) || \ + defined(CONFIG_AM33XX) /* send out MSB byte */ writeb((addr & 0xFF), &i2c_base->data); #else @@ -442,7 +447,8 @@ int i2c_write(uchar chip, uint addr, int alen, uchar *buffer, int len) if (!i2c_error) { for (i = ((alen > 1) ? 0 : 1); i < len; i++) { if (status & I2C_STAT_XRDY) { -#if defined(CONFIG_OMAP243X) || defined(CONFIG_OMAP34XX) +#if defined(CONFIG_OMAP243X) || defined(CONFIG_OMAP34XX) || \ + defined(CONFIG_AM33XX) writeb((buffer[i] & 0xFF), &i2c_base->data); #else