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2019-02-05mtd: spinand: macronix: Fix ECC Status ReadEmil Lenngren1-1/+7
The datasheet specifies the upper four bits are reserved. Testing on real hardware shows that these bits can indeed be nonzero. Signed-off-by: Emil Lenngren <emil.lenngren@gmail.com> Reviewed-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2019-02-05mtd: rawnand: sunxi: Fix kernel doc headersBoris Brezillon1-30/+30
Fix the struct description and use standard kernel-doc header format (even if the file is not parsed by the doc generator). We also replace tabs by a single space. Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2019-02-05mtd: rawnand: sunxi: Migrate to ->exec_op()Boris Brezillon1-120/+174
And get rif of all legacy hooks and unused fields. Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2019-02-05mtd: rawnand: sunxi: Add an SPDX tagBoris Brezillon1-11/+2
Replace the license text by an SPDX tag and fix MODULE_LICENSE() to match GPL-2.0+. Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2019-02-05mtd: rawnand: sunxi: Stop passing mtd_info objects aroundBoris Brezillon1-110/+94
Replace them by nand_chip pointers. Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2019-02-05mtd: rawnand: sunxi: Name nand_chip objects consistentlyBoris Brezillon1-52/+51
nand_chip objects are sometimes called chip and sometimes nand. Rename all of them into nand to make things consistent. Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2019-02-05mtd: rawnand: sunxi: Use struct_size()Boris Brezillon1-3/+1
Use struct_size() to calculate sunxi_nand object size. Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2019-02-05mtd: rawnand: sunxi: Use a consistent name for sunxi_nand_chip objectsBoris Brezillon1-27/+29
sunxi_nand_chip objects are sometimes called chip and other times called sunxi_nand. Make that consistent and name all occurrences sunxi_nand. Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2019-02-05mtd: rawnand: stm32_fmc2: add polling modeChristophe Kerello1-32/+297
This patch adds the polling mode, a basic mode that do not need any DMA channels. This mode is also useful for debug purpose. Signed-off-by: Christophe Kerello <christophe.kerello@st.com> Reviewed-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2019-02-05mtd: rawnand: stm32_fmc2: add STM32 FMC2 NAND flash controller driverChristophe Kerello3-0/+1818
The driver adds the support for the STMicroelectronics FMC2 NAND Controller found on STM32MP SOCs. This patch is based on FMC2 command sequencer. The purpose of the command sequencer is to facilitate the programming and the reading of NAND flash pages with the ECC and to free the CPU of sequencing tasks. It requires one DMA channel for write and two DMA channels for read operations. Only NAND_ECC_HW mode is actually supported. The driver supports a maximum 8k page size. The following ECC strength and step size are currently supported: - nand-ecc-strength = <8>, nand-ecc-step-size = <512> (BCH8) - nand-ecc-strength = <4>, nand-ecc-step-size = <512> (BCH4) - nand-ecc-strength = <1>, nand-ecc-step-size = <512> (Extended ECC based on Hamming) This patch has been tested on Micron MT29F8G08ABACAH4 and MT29F8G16ABACAH4 Signed-off-by: Christophe Kerello <christophe.kerello@st.com> Reviewed-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>