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@@ -12,6 +12,11 @@
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#include <i2c.h>
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#include <i2c_eeprom.h>
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+struct i2c_eeprom_drv_data {
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+ u32 size; /* size in bytes */
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+ u32 pagewidth; /* pagesize = 2^pagewidth */
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+};
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+
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int i2c_eeprom_read(struct udevice *dev, int offset, uint8_t *buf, int size)
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{
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const struct i2c_eeprom_ops *ops = device_get_ops(dev);
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@@ -32,6 +37,16 @@ int i2c_eeprom_write(struct udevice *dev, int offset, uint8_t *buf, int size)
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return ops->write(dev, offset, buf, size);
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}
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+int i2c_eeprom_size(struct udevice *dev)
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+{
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+ const struct i2c_eeprom_ops *ops = device_get_ops(dev);
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+
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+ if (!ops->size)
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+ return -ENOSYS;
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+
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+ return ops->size(dev);
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+}
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+
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static int i2c_eeprom_std_read(struct udevice *dev, int offset, uint8_t *buf,
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int size)
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{
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@@ -61,25 +76,39 @@ static int i2c_eeprom_std_write(struct udevice *dev, int offset,
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return 0;
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}
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+static int i2c_eeprom_std_size(struct udevice *dev)
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+{
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+ struct i2c_eeprom *priv = dev_get_priv(dev);
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+
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+ return priv->size;
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+}
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+
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static const struct i2c_eeprom_ops i2c_eeprom_std_ops = {
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.read = i2c_eeprom_std_read,
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.write = i2c_eeprom_std_write,
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+ .size = i2c_eeprom_std_size,
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};
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static int i2c_eeprom_std_ofdata_to_platdata(struct udevice *dev)
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{
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struct i2c_eeprom *priv = dev_get_priv(dev);
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- u64 data = dev_get_driver_data(dev);
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+ struct i2c_eeprom_drv_data *data =
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+ (struct i2c_eeprom_drv_data *)dev_get_driver_data(dev);
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u32 pagesize;
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+ u32 size;
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if (dev_read_u32(dev, "pagesize", &pagesize) == 0) {
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priv->pagesize = pagesize;
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- return 0;
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+ } else {
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+ /* 6 bit -> page size of up to 2^63 (should be sufficient) */
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+ priv->pagewidth = data->pagewidth;
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+ priv->pagesize = (1 << priv->pagewidth);
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}
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- /* 6 bit -> page size of up to 2^63 (should be sufficient) */
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- priv->pagewidth = data & 0x3F;
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- priv->pagesize = (1 << priv->pagewidth);
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+ if (dev_read_u32(dev, "size", &size) == 0)
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+ priv->size = size;
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+ else
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+ priv->size = data->size;
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return 0;
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}
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@@ -120,21 +149,91 @@ static int i2c_eeprom_std_probe(struct udevice *dev)
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return 0;
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}
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+static const struct i2c_eeprom_drv_data eeprom_data = {
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+ .size = 0,
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+ .pagewidth = 0,
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+};
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+
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+static const struct i2c_eeprom_drv_data mc24aa02e48_data = {
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+ .size = 256,
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+ .pagewidth = 3,
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+};
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+
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+static const struct i2c_eeprom_drv_data atmel24c01a_data = {
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+ .size = 128,
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+ .pagewidth = 3,
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+};
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+
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+static const struct i2c_eeprom_drv_data atmel24c02_data = {
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+ .size = 256,
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+ .pagewidth = 3,
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+};
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+
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+static const struct i2c_eeprom_drv_data atmel24c04_data = {
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+ .size = 512,
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+ .pagewidth = 4,
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+};
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+
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+static const struct i2c_eeprom_drv_data atmel24c08_data = {
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+ .size = 1024,
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+ .pagewidth = 4,
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+};
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+
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+static const struct i2c_eeprom_drv_data atmel24c08a_data = {
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+ .size = 1024,
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+ .pagewidth = 4,
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+};
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+
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+static const struct i2c_eeprom_drv_data atmel24c16a_data = {
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+ .size = 2048,
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+ .pagewidth = 4,
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+};
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+
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+static const struct i2c_eeprom_drv_data atmel24mac402_data = {
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+ .size = 256,
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+ .pagewidth = 4,
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+};
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+
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+static const struct i2c_eeprom_drv_data atmel24c32_data = {
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+ .size = 4096,
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+ .pagewidth = 5,
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+};
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+
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+static const struct i2c_eeprom_drv_data atmel24c64_data = {
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+ .size = 8192,
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+ .pagewidth = 5,
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+};
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+
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+static const struct i2c_eeprom_drv_data atmel24c128_data = {
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+ .size = 16384,
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+ .pagewidth = 6,
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+};
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+
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+static const struct i2c_eeprom_drv_data atmel24c256_data = {
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+ .size = 32768,
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+ .pagewidth = 6,
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+};
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+
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+static const struct i2c_eeprom_drv_data atmel24c512_data = {
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+ .size = 65536,
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+ .pagewidth = 6,
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+};
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+
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static const struct udevice_id i2c_eeprom_std_ids[] = {
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- { .compatible = "i2c-eeprom", .data = 0 },
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- { .compatible = "microchip,24aa02e48", .data = 3 },
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- { .compatible = "atmel,24c01a", .data = 3 },
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- { .compatible = "atmel,24c02", .data = 3 },
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- { .compatible = "atmel,24c04", .data = 4 },
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- { .compatible = "atmel,24c08", .data = 4 },
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- { .compatible = "atmel,24c08a", .data = 4 },
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- { .compatible = "atmel,24c16a", .data = 4 },
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- { .compatible = "atmel,24mac402", .data = 4 },
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- { .compatible = "atmel,24c32", .data = 5 },
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- { .compatible = "atmel,24c64", .data = 5 },
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- { .compatible = "atmel,24c128", .data = 6 },
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- { .compatible = "atmel,24c256", .data = 6 },
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- { .compatible = "atmel,24c512", .data = 6 },
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+ { .compatible = "i2c-eeprom", (ulong)&eeprom_data },
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+ { .compatible = "microchip,24aa02e48", (ulong)&mc24aa02e48_data },
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+ { .compatible = "atmel,24c01a", (ulong)&atmel24c01a_data },
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+ { .compatible = "atmel,24c02", (ulong)&atmel24c02_data },
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+ { .compatible = "atmel,24c04", (ulong)&atmel24c04_data },
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+ { .compatible = "atmel,24c08", (ulong)&atmel24c08_data },
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+ { .compatible = "atmel,24c08a", (ulong)&atmel24c08a_data },
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+ { .compatible = "atmel,24c16a", (ulong)&atmel24c16a_data },
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+ { .compatible = "atmel,24mac402", (ulong)&atmel24mac402_data },
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+ { .compatible = "atmel,24c32", (ulong)&atmel24c32_data },
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+ { .compatible = "atmel,24c64", (ulong)&atmel24c64_data },
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+ { .compatible = "atmel,24c128", (ulong)&atmel24c128_data },
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+ { .compatible = "atmel,24c256", (ulong)&atmel24c256_data },
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+ { .compatible = "atmel,24c512", (ulong)&atmel24c512_data },
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{ }
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};
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@@ -208,9 +307,17 @@ static int i2c_eeprom_partition_write(struct udevice *dev, int offset,
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size);
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}
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+static int i2c_eeprom_partition_size(struct udevice *dev)
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+{
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+ struct i2c_eeprom_partition *priv = dev_get_priv(dev);
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+
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+ return priv->size;
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+}
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+
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static const struct i2c_eeprom_ops i2c_eeprom_partition_ops = {
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.read = i2c_eeprom_partition_read,
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.write = i2c_eeprom_partition_write,
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+ .size = i2c_eeprom_partition_size,
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};
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U_BOOT_DRIVER(i2c_eeprom_partition) = {
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