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// 3. Initialize NAND controller and assign controller ops chip->controller = &priv->controller; chip->select_chip = semc_nand_select; chip->cmd_ctrl = semc_nand_cmd_ctrl; chip->dev_ready = semc_nand_dev_ready;

SEMC Flash Device Driver is a critical software component used to interface Sony Ericsson (SEMC) semc flash device driver

For flash devices, the SEMC provides a memory-mapped region for NOR (execute-in-place) and a command-based interface for NAND. A common mistake is forgetting to configure the

The SEMC can operate in 8/16/32-bit modes, with or without address/data multiplexing. A common mistake is forgetting to configure the in both the SEMC registers and the flash’s internal configuration (for devices that support dual/quad modes). 3) /* addr shift enable */

// Correct for 64MB HyperFlash SEMC->BR[0] = (0x60000000 & SEMC_BR_BA_MASK) | SEMC_BR_VLD | (16 << 8) /* burst len */ | (1 << 3) /* addr shift enable */;

to implement the dev_ready callback if your flash has an R/B pin wired to a GPIO—the SEMC’s status register polling is slower and may miss transitions.