Messages in this thread Patch in this message | | | From | Matias Bjørling <> | Subject | [PATCH 07/13] lightnvm: check for NAND flash and its type | Date | Mon, 16 Nov 2015 15:34:41 +0100 |
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Only NAND flash with SLC and MLC is supported. Make sure to not try to initialize TLC memory or other non-volatile memory types.
Signed-off-by: Matias Bjørling <m@bjorling.me> --- drivers/lightnvm/core.c | 10 ++++++++++ 1 file changed, 10 insertions(+)
diff --git a/drivers/lightnvm/core.c b/drivers/lightnvm/core.c index f659e60..0985a03 100644 --- a/drivers/lightnvm/core.c +++ b/drivers/lightnvm/core.c @@ -185,6 +185,16 @@ static int nvm_core_init(struct nvm_dev *dev) dev->plane_mode = NVM_PLANE_SINGLE; dev->max_rq_size = dev->ops->max_phys_sect * dev->sec_size; + if (grp->mtype != 0) { + pr_err("nvm: memory type not supported\n"); + return -EINVAL; + } + + if (grp->fmtype != 0 && grp->fmtype != 1) { + pr_err("nvm: flash type not supported\n"); + return -EINVAL; + } + if (grp->mpos & 0x020202) dev->plane_mode = NVM_PLANE_DOUBLE; if (grp->mpos & 0x040404) -- 2.1.4
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