diff options
author | C Nauman <cnauman@diagraph.com> | 2010-10-26 23:04:31 +0900 |
---|---|---|
committer | Minkyu Kang <mk7.kang@samsung.com> | 2010-10-28 15:35:56 +0900 |
commit | d9abba8254c3e6b9a1d5c2e52c2d8088bbeb520f (patch) | |
tree | 7f97ab2012dfa882e65290138379e22de31bf227 /drivers/i2c/s3c24x0_i2c.c | |
parent | 1628cfc4fe4b2c3caa7e9d5622f0665c54e8ba6e (diff) | |
download | u-boot-imx-d9abba8254c3e6b9a1d5c2e52c2d8088bbeb520f.zip u-boot-imx-d9abba8254c3e6b9a1d5c2e52c2d8088bbeb520f.tar.gz u-boot-imx-d9abba8254c3e6b9a1d5c2e52c2d8088bbeb520f.tar.bz2 |
Add generic support for samsung s3c2440
This patch adds generic support for the Samsung s3c2440 processor.
Global s3c24x0 changes to struct members converting from upper case to
lower case.
Signed-off-by: Craig Nauman <cnauman@diagraph.com>
Cc: kevin.morfitt@fearnside-systems.co.uk
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Diffstat (limited to 'drivers/i2c/s3c24x0_i2c.c')
-rw-r--r-- | drivers/i2c/s3c24x0_i2c.c | 102 |
1 files changed, 51 insertions, 51 deletions
diff --git a/drivers/i2c/s3c24x0_i2c.c b/drivers/i2c/s3c24x0_i2c.c index c8371cf..ba6f39b 100644 --- a/drivers/i2c/s3c24x0_i2c.c +++ b/drivers/i2c/s3c24x0_i2c.c @@ -58,10 +58,10 @@ static int GetI2CSDA(void) struct s3c24x0_gpio *gpio = s3c24x0_get_base_gpio(); #ifdef CONFIG_S3C2410 - return (readl(&gpio->GPEDAT) & 0x8000) >> 15; + return (readl(&gpio->gpedat) & 0x8000) >> 15; #endif #ifdef CONFIG_S3C2400 - return (readl(&gpio->PGDAT) & 0x0020) >> 5; + return (readl(&gpio->pgdat) & 0x0020) >> 5; #endif } @@ -77,10 +77,10 @@ static void SetI2CSCL(int x) struct s3c24x0_gpio *gpio = s3c24x0_get_base_gpio(); #ifdef CONFIG_S3C2410 - writel((readl(&gpio->GPEDAT) & ~0x4000) | (x & 1) << 14, &gpio->GPEDAT); + writel((readl(&gpio->gpedat) & ~0x4000) | (x & 1) << 14, &gpio->gpedat); #endif #ifdef CONFIG_S3C2400 - writel((readl(&gpio->PGDAT) & ~0x0040) | (x & 1) << 6, &gpio->PGDAT); + writel((readl(&gpio->pgdat) & ~0x0040) | (x & 1) << 6, &gpio->pgdat); #endif } @@ -90,26 +90,26 @@ static int WaitForXfer(void) int i; i = I2C_TIMEOUT * 10000; - while (!(readl(&i2c->IICCON) & I2CCON_IRPND) && (i > 0)) { + while (!(readl(&i2c->iiccon) & I2CCON_IRPND) && (i > 0)) { udelay(100); i--; } - return (readl(&i2c->IICCON) & I2CCON_IRPND) ? I2C_OK : I2C_NOK_TOUT; + return (readl(&i2c->iiccon) & I2CCON_IRPND) ? I2C_OK : I2C_NOK_TOUT; } static int IsACK(void) { struct s3c24x0_i2c *i2c = s3c24x0_get_base_i2c(); - return !(readl(&i2c->IICSTAT) & I2CSTAT_NACK); + return !(readl(&i2c->iicstat) & I2CSTAT_NACK); } static void ReadWriteByte(void) { struct s3c24x0_i2c *i2c = s3c24x0_get_base_i2c(); - writel(readl(&i2c->IICCON) & ~I2CCON_IRPND, &i2c->IICCON); + writel(readl(&i2c->iiccon) & ~I2CCON_IRPND, &i2c->iiccon); } void i2c_init(int speed, int slaveadd) @@ -122,30 +122,30 @@ void i2c_init(int speed, int slaveadd) /* wait for some time to give previous transfer a chance to finish */ i = I2C_TIMEOUT * 1000; - while ((readl(&i2c->IICSTAT) && I2CSTAT_BSY) && (i > 0)) { + while ((readl(&i2c->iicstat) && I2CSTAT_BSY) && (i > 0)) { udelay(1000); i--; } - if ((readl(&i2c->IICSTAT) & I2CSTAT_BSY) || GetI2CSDA() == 0) { + if ((readl(&i2c->iicstat) & I2CSTAT_BSY) || GetI2CSDA() == 0) { #ifdef CONFIG_S3C2410 - ulong old_gpecon = readl(&gpio->GPECON); + ulong old_gpecon = readl(&gpio->gpecon); #endif #ifdef CONFIG_S3C2400 - ulong old_gpecon = readl(&gpio->PGCON); + ulong old_gpecon = readl(&gpio->pgcon); #endif /* bus still busy probably by (most) previously interrupted transfer */ #ifdef CONFIG_S3C2410 /* set I2CSDA and I2CSCL (GPE15, GPE14) to GPIO */ - writel((readl(&gpio->GPECON) & ~0xF0000000) | 0x10000000, - &gpio->GPECON); + writel((readl(&gpio->gpecon) & ~0xF0000000) | 0x10000000, + &gpio->gpecon); #endif #ifdef CONFIG_S3C2400 /* set I2CSDA and I2CSCL (PG5, PG6) to GPIO */ - writel((readl(&gpio->PGCON) & ~0x00003c00) | 0x00001000, - &gpio->PGCON); + writel((readl(&gpio->pgcon) & ~0x00003c00) | 0x00001000, + &gpio->pgcon); #endif /* toggle I2CSCL until bus idle */ @@ -164,10 +164,10 @@ void i2c_init(int speed, int slaveadd) /* restore pin functions */ #ifdef CONFIG_S3C2410 - writel(old_gpecon, &gpio->GPECON); + writel(old_gpecon, &gpio->gpecon); #endif #ifdef CONFIG_S3C2400 - writel(old_gpecon, &gpio->PGCON); + writel(old_gpecon, &gpio->pgcon); #endif } @@ -183,13 +183,13 @@ void i2c_init(int speed, int slaveadd) /* set prescaler, divisor according to freq, also set * ACKGEN, IRQ */ - writel((div & 0x0F) | 0xA0 | ((pres == 512) ? 0x40 : 0), &i2c->IICCON); + writel((div & 0x0F) | 0xA0 | ((pres == 512) ? 0x40 : 0), &i2c->iiccon); /* init to SLAVE REVEIVE and set slaveaddr */ - writel(0, &i2c->IICSTAT); - writel(slaveadd, &i2c->IICADD); + writel(0, &i2c->iicstat); + writel(slaveadd, &i2c->iicadd); /* program Master Transmit (and implicit STOP) */ - writel(I2C_MODE_MT | I2C_TXRX_ENA, &i2c->IICSTAT); + writel(I2C_MODE_MT | I2C_TXRX_ENA, &i2c->iicstat); } @@ -218,47 +218,47 @@ int i2c_transfer(unsigned char cmd_type, /* Check I2C bus idle */ i = I2C_TIMEOUT * 1000; - while ((readl(&i2c->IICSTAT) & I2CSTAT_BSY) && (i > 0)) { + while ((readl(&i2c->iicstat) & I2CSTAT_BSY) && (i > 0)) { udelay(1000); i--; } - if (readl(&i2c->IICSTAT) & I2CSTAT_BSY) + if (readl(&i2c->iicstat) & I2CSTAT_BSY) return I2C_NOK_TOUT; - writel(readl(&i2c->IICCON) | 0x80, &i2c->IICCON); + writel(readl(&i2c->iiccon) | 0x80, &i2c->iiccon); result = I2C_OK; switch (cmd_type) { case I2C_WRITE: if (addr && addr_len) { - writel(chip, &i2c->IICDS); + writel(chip, &i2c->iicds); /* send START */ writel(I2C_MODE_MT | I2C_TXRX_ENA | I2C_START_STOP, - &i2c->IICSTAT); + &i2c->iicstat); i = 0; while ((i < addr_len) && (result == I2C_OK)) { result = WaitForXfer(); - writel(addr[i], &i2c->IICDS); + writel(addr[i], &i2c->iicds); ReadWriteByte(); i++; } i = 0; while ((i < data_len) && (result == I2C_OK)) { result = WaitForXfer(); - writel(data[i], &i2c->IICDS); + writel(data[i], &i2c->iicds); ReadWriteByte(); i++; } } else { - writel(chip, &i2c->IICDS); + writel(chip, &i2c->iicds); /* send START */ writel(I2C_MODE_MT | I2C_TXRX_ENA | I2C_START_STOP, - &i2c->IICSTAT); + &i2c->iicstat); i = 0; while ((i < data_len) && (result = I2C_OK)) { result = WaitForXfer(); - writel(data[i], &i2c->IICDS); + writel(data[i], &i2c->iicds); ReadWriteByte(); i++; } @@ -268,42 +268,42 @@ int i2c_transfer(unsigned char cmd_type, result = WaitForXfer(); /* send STOP */ - writel(I2C_MODE_MR | I2C_TXRX_ENA, &i2c->IICSTAT); + writel(I2C_MODE_MR | I2C_TXRX_ENA, &i2c->iicstat); ReadWriteByte(); break; case I2C_READ: if (addr && addr_len) { - writel(I2C_MODE_MT | I2C_TXRX_ENA, &i2c->IICSTAT); - writel(chip, &i2c->IICDS); + writel(I2C_MODE_MT | I2C_TXRX_ENA, &i2c->iicstat); + writel(chip, &i2c->iicds); /* send START */ - writel(readl(&i2c->IICSTAT) | I2C_START_STOP, - &i2c->IICSTAT); + writel(readl(&i2c->iicstat) | I2C_START_STOP, + &i2c->iicstat); result = WaitForXfer(); if (IsACK()) { i = 0; while ((i < addr_len) && (result == I2C_OK)) { - writel(addr[i], &i2c->IICDS); + writel(addr[i], &i2c->iicds); ReadWriteByte(); result = WaitForXfer(); i++; } - writel(chip, &i2c->IICDS); + writel(chip, &i2c->iicds); /* resend START */ writel(I2C_MODE_MR | I2C_TXRX_ENA | - I2C_START_STOP, &i2c->IICSTAT); + I2C_START_STOP, &i2c->iicstat); ReadWriteByte(); result = WaitForXfer(); i = 0; while ((i < data_len) && (result == I2C_OK)) { /* disable ACK for final READ */ if (i == data_len - 1) - writel(readl(&i2c->IICCON) - & ~0x80, &i2c->IICCON); + writel(readl(&i2c->iiccon) + & ~0x80, &i2c->iiccon); ReadWriteByte(); result = WaitForXfer(); - data[i] = readl(&i2c->IICDS); + data[i] = readl(&i2c->iicds); i++; } } else { @@ -311,11 +311,11 @@ int i2c_transfer(unsigned char cmd_type, } } else { - writel(I2C_MODE_MR | I2C_TXRX_ENA, &i2c->IICSTAT); - writel(chip, &i2c->IICDS); + writel(I2C_MODE_MR | I2C_TXRX_ENA, &i2c->iicstat); + writel(chip, &i2c->iicds); /* send START */ - writel(readl(&i2c->IICSTAT) | I2C_START_STOP, - &i2c->IICSTAT); + writel(readl(&i2c->iicstat) | I2C_START_STOP, + &i2c->iicstat); result = WaitForXfer(); if (IsACK()) { @@ -323,11 +323,11 @@ int i2c_transfer(unsigned char cmd_type, while ((i < data_len) && (result == I2C_OK)) { /* disable ACK for final READ */ if (i == data_len - 1) - writel(readl(&i2c->IICCON) & - ~0x80, &i2c->IICCON); + writel(readl(&i2c->iiccon) & + ~0x80, &i2c->iiccon); ReadWriteByte(); result = WaitForXfer(); - data[i] = readl(&i2c->IICDS); + data[i] = readl(&i2c->iicds); i++; } } else { @@ -336,7 +336,7 @@ int i2c_transfer(unsigned char cmd_type, } /* send STOP */ - writel(I2C_MODE_MR | I2C_TXRX_ENA, &i2c->IICSTAT); + writel(I2C_MODE_MR | I2C_TXRX_ENA, &i2c->iicstat); ReadWriteByte(); break; |