Re: [PATCH 2/3] mtd: rawnand: stm32_fmc2: add STM32 FMC2 NAND flash controller driver

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Hi Boris,

On 09/24/2018 07:23 PM, Boris Brezillon wrote:
Hi Christophe,

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

Yes, I can create 2 structures: one for the controller (stm32_fmc2) and one for the NAND chip (stm32_fmc2_nand_chip).

Regards,
Christophe Kerello.


Regards,

Boris




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