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SubjectRe: [RESEND][PATCH 3/7] nvmem: imx-ocotp: Add support for banked OTP addressing
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On Wed, 2017-10-04 at 23:25 +0100, Bryan O'Donoghue wrote:
> The i.MX7S/D takes the bank address in the CTRLn.ADDR field and the
> data
> value in one of the DATAx {0, 1, 2, 3} register fields. The current
> write
> routine is based on writing the CTRLn.ADDR field and writing a single
> DATA
> register only.
>
> Fixes: 0642bac7da42 ("nvmem: imx-ocotp: add write support")
>
> Signed-off-by: Bryan O'Donoghue <pure.logic@nexus-software.ie>
> ---
>  drivers/nvmem/imx-ocotp.c | 71
> +++++++++++++++++++++++++++++++++++++++++------
>  1 file changed, 62 insertions(+), 9 deletions(-)
>
> diff --git a/drivers/nvmem/imx-ocotp.c b/drivers/nvmem/imx-ocotp.c
> index fed76a4..8034937 100644
> --- a/drivers/nvmem/imx-ocotp.c
> +++ b/drivers/nvmem/imx-ocotp.c
> @@ -40,7 +40,10 @@
>  #define IMX_OCOTP_ADDR_CTRL_SET 0x0004
>  #define IMX_OCOTP_ADDR_CTRL_CLR 0x0008
>  #define IMX_OCOTP_ADDR_TIMING 0x0010
> -#define IMX_OCOTP_ADDR_DATA 0x0020
> +#define IMX_OCOTP_ADDR_DATA0 0x0020
> +#define IMX_OCOTP_ADDR_DATA1 0x0030
> +#define IMX_OCOTP_ADDR_DATA2 0x0040
> +#define IMX_OCOTP_ADDR_DATA3 0x0050
>  
>  #define IMX_OCOTP_BM_CTRL_ADDR 0x0000007F
>  #define IMX_OCOTP_BM_CTRL_BUSY 0x00000100
> @@ -55,6 +58,8 @@ static DEFINE_MUTEX(ocotp_mutex);
>  
>  struct octp_params {
>   unsigned int nregs;
> + bool banked;
> + unsigned int regs_per_bank;
>  };

Instead of the separate banked parameter you could just use
(regs_per_bank != 0).

regards
Philipp

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