From mboxrd@z Thu Jan 1 00:00:00 1970 From: Baruch Siach Date: Sun, 7 Apr 2019 12:38:49 +0300 Subject: [U-Boot] [PATCH 2/2] misc: i2c_eeprom: add eeprom write support In-Reply-To: References: Message-ID: <7d3ea700c3af62d8ac9b3664610134805018c382.1554629929.git.baruch@tkos.co.il> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Write up to page size in each i2c transfer. Signed-off-by: Baruch Siach --- drivers/misc/i2c_eeprom.c | 20 +++++++++++++++++++- 1 file changed, 19 insertions(+), 1 deletion(-) diff --git a/drivers/misc/i2c_eeprom.c b/drivers/misc/i2c_eeprom.c index ce2cad44d8d4..f25d0540075d 100644 --- a/drivers/misc/i2c_eeprom.c +++ b/drivers/misc/i2c_eeprom.c @@ -5,6 +5,7 @@ #include #include +#include #include #include #include @@ -38,7 +39,24 @@ static int i2c_eeprom_std_read(struct udevice *dev, int offset, uint8_t *buf, static int i2c_eeprom_std_write(struct udevice *dev, int offset, const uint8_t *buf, int size) { - return -ENODEV; + struct i2c_eeprom *priv = dev_get_priv(dev); + int ret; + + while (size > 0) { + int write_size = min_t(int, size, priv->pagesize); + + ret = dm_i2c_write(dev, offset, buf, write_size); + if (ret) + return ret; + + offset += write_size; + buf += write_size; + size -= write_size; + + udelay(10000); + } + + return 0; } static const struct i2c_eeprom_ops i2c_eeprom_std_ops = { -- 2.20.1