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eeprom: at24: add support for 24c2048 

Works with ST M24M02.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
This commit is contained in:
Adrian Bunk 2018-11-29 21:58:58 +02:00 committed by Bartosz Golaszewski
parent 6c0c5dc33f
commit 37cf28d3b5
2 changed files with 4 additions and 1 deletions
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2
drivers/misc/eeprom/Kconfig
View File

@ -13,7 +13,7 @@ config EEPROM_AT24
ones like at24c64, 24lc02 or fm24c04: ones like at24c64, 24lc02 or fm24c04:
24c00, 24c01, 24c02, spd (readonly 24c02), 24c04, 24c08, 24c00, 24c01, 24c02, spd (readonly 24c02), 24c04, 24c08,
24c16, 24c32, 24c64, 24c128, 24c256, 24c512, 24c1024 24c16, 24c32, 24c64, 24c128, 24c256, 24c512, 24c1024, 24c2048
Unless you like data loss puzzles, always be sure that any chip Unless you like data loss puzzles, always be sure that any chip
you configure as a 24c32 (32 kbit) or larger is NOT really a you configure as a 24c32 (32 kbit) or larger is NOT really a

3
drivers/misc/eeprom/at24.c
View File

@ -156,6 +156,7 @@ AT24_CHIP_DATA(at24_data_24c128, 131072 / 8, AT24_FLAG_ADDR16);
AT24_CHIP_DATA(at24_data_24c256, 262144 / 8, AT24_FLAG_ADDR16); AT24_CHIP_DATA(at24_data_24c256, 262144 / 8, AT24_FLAG_ADDR16);
AT24_CHIP_DATA(at24_data_24c512, 524288 / 8, AT24_FLAG_ADDR16); AT24_CHIP_DATA(at24_data_24c512, 524288 / 8, AT24_FLAG_ADDR16);
AT24_CHIP_DATA(at24_data_24c1024, 1048576 / 8, AT24_FLAG_ADDR16); AT24_CHIP_DATA(at24_data_24c1024, 1048576 / 8, AT24_FLAG_ADDR16);
AT24_CHIP_DATA(at24_data_24c2048, 2097152 / 8, AT24_FLAG_ADDR16);
/* identical to 24c08 ? */ /* identical to 24c08 ? */
AT24_CHIP_DATA(at24_data_INT3499, 8192 / 8, 0); AT24_CHIP_DATA(at24_data_INT3499, 8192 / 8, 0);
@ -182,6 +183,7 @@ static const struct i2c_device_id at24_ids[] = {
{ "24c256", (kernel_ulong_t)&at24_data_24c256 }, { "24c256", (kernel_ulong_t)&at24_data_24c256 },
{ "24c512", (kernel_ulong_t)&at24_data_24c512 }, { "24c512", (kernel_ulong_t)&at24_data_24c512 },
{ "24c1024", (kernel_ulong_t)&at24_data_24c1024 }, { "24c1024", (kernel_ulong_t)&at24_data_24c1024 },
{ "24c2048", (kernel_ulong_t)&at24_data_24c2048 },
{ "at24", 0 }, { "at24", 0 },
{ /* END OF LIST */ } { /* END OF LIST */ }
}; };
@ -210,6 +212,7 @@ static const struct of_device_id at24_of_match[] = {
{ .compatible = "atmel,24c256", .data = &at24_data_24c256 }, { .compatible = "atmel,24c256", .data = &at24_data_24c256 },
{ .compatible = "atmel,24c512", .data = &at24_data_24c512 }, { .compatible = "atmel,24c512", .data = &at24_data_24c512 },
{ .compatible = "atmel,24c1024", .data = &at24_data_24c1024 }, { .compatible = "atmel,24c1024", .data = &at24_data_24c1024 },
{ .compatible = "atmel,24c2048", .data = &at24_data_24c2048 },
{ /* END OF LIST */ }, { /* END OF LIST */ },
}; };
MODULE_DEVICE_TABLE(of, at24_of_match); MODULE_DEVICE_TABLE(of, at24_of_match);