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SubjectRe: [PATCH 2/3] mtd: rawnand: stm32_fmc2: add STM32 FMC2 NAND flash controller driver
Hi Christophe,

On Mon, 17 Sep 2018 17:47:39 +0200
<christophe.kerello@st.com> wrote:

> +struct stm32_fmc2 {
> + struct nand_chip chip;
> + struct device *dev;
> + void __iomem *io_base;
> + void __iomem *data_base[FMC2_MAX_CE];
> + void __iomem *cmd_base[FMC2_MAX_CE];
> + void __iomem *addr_base[FMC2_MAX_CE];
> + phys_addr_t io_phys_addr;
> + phys_addr_t data_phys_addr[FMC2_MAX_CE];
> + struct clk *clk;
> +
> + struct dma_chan *dma_tx_ch;
> + struct dma_chan *dma_rx_ch;
> + struct dma_chan *dma_ecc_ch;
> + struct sg_table dma_data_sg;
> + struct sg_table dma_ecc_sg;
> + u8 *ecc_buf;
> + int dma_ecc_len;
> +
> + struct completion complete;
> + struct completion dma_data_complete;
> + struct completion dma_ecc_complete;
> +
> + struct stm32_fmc2_timings timings;
> + u8 cs_assigned;
> + int cs_sel;
> + int ncs;
> + int cs_used[FMC2_MAX_CE];
> +};

Can we have a clear separation between the NAND controller and NAND
chip structures. I know you only support a single chip per-controller
right now, but I prefer to have things clearly separated from the
beginning.

Regards,

Boris

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