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| author | Robert Beckett <bob.beckett@collabora.com> | 2019-10-28 17:44:59 +0000 |
|---|---|---|
| committer | Heiko Schocher <hs@denx.de> | 2019-12-17 06:57:31 +0100 |
| commit | 951674ac7e3db23eb3b2b87c27387364a9e38ca2 (patch) | |
| tree | 354d2a83d5ec40ee6d281206228b367b7e328aec /drivers/misc | |
| parent | 22e93511be2e012d3f807641b07e09b649a71ef6 (diff) | |
| download | u-boot-951674ac7e3db23eb3b2b87c27387364a9e38ca2.zip u-boot-951674ac7e3db23eb3b2b87c27387364a9e38ca2.tar.gz u-boot-951674ac7e3db23eb3b2b87c27387364a9e38ca2.tar.bz2 | |
dm: i2c: EEPROM simulator add tests for addr offset mask
Add support for setting the chip address offset mask to EEPROM sumulator
and add tests to test it.
Signed-off-by: Robert Beckett <bob.beckett@collabora.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
Diffstat (limited to 'drivers/misc')
| -rw-r--r-- | drivers/misc/i2c_eeprom_emul.c | 19 |
1 files changed, 14 insertions, 5 deletions
diff --git a/drivers/misc/i2c_eeprom_emul.c b/drivers/misc/i2c_eeprom_emul.c index 284267f..16758a0 100644 --- a/drivers/misc/i2c_eeprom_emul.c +++ b/drivers/misc/i2c_eeprom_emul.c @@ -23,6 +23,7 @@ struct sandbox_i2c_flash_plat_data { const char *filename; int offset_len; /* Length of an offset in bytes */ int size; /* Size of data buffer */ + uint chip_addr_offset_mask; /* mask of addr bits used for offset */ }; struct sandbox_i2c_flash { @@ -46,6 +47,14 @@ void sandbox_i2c_eeprom_set_offset_len(struct udevice *dev, int offset_len) plat->offset_len = offset_len; } +void sandbox_i2c_eeprom_set_chip_addr_offset_mask(struct udevice *dev, + uint mask) +{ + struct sandbox_i2c_flash_plat_data *plat = dev_get_platdata(dev); + + plat->chip_addr_offset_mask = mask; +} + uint sanbox_i2c_eeprom_get_prev_addr(struct udevice *dev) { struct sandbox_i2c_flash *priv = dev_get_priv(dev); @@ -64,7 +73,8 @@ static int sandbox_i2c_eeprom_xfer(struct udevice *emul, struct i2c_msg *msg, int nmsgs) { struct sandbox_i2c_flash *priv = dev_get_priv(emul); - uint offset = 0; + struct sandbox_i2c_flash_plat_data *plat = dev_get_platdata(emul); + uint offset = msg->addr & plat->chip_addr_offset_mask; debug("\n%s\n", __func__); debug_buffer(0, priv->data, 1, 16, 0); @@ -73,17 +83,15 @@ static int sandbox_i2c_eeprom_xfer(struct udevice *emul, struct i2c_msg *msg, priv->prev_addr = msg->addr; for (; nmsgs > 0; nmsgs--, msg++) { - struct sandbox_i2c_flash_plat_data *plat = - dev_get_platdata(emul); int len; u8 *ptr; if (!plat->size) return -ENODEV; len = msg->len; - debug(" %s: msg->len=%d", + debug(" %s: msg->addr=%x msg->len=%d", msg->flags & I2C_M_RD ? "read" : "write", - msg->len); + msg->addr, msg->len); if (msg->flags & I2C_M_RD) { if (plat->test_mode == SIE_TEST_MODE_SINGLE_BYTE) len = 1; @@ -153,6 +161,7 @@ static int sandbox_i2c_eeprom_ofdata_to_platdata(struct udevice *dev) } plat->test_mode = SIE_TEST_MODE_NONE; plat->offset_len = 1; + plat->chip_addr_offset_mask = 0; return 0; } |