Messages in this thread | | | Date | Sun, 23 Sep 2018 13:34:51 +0200 | From | Miquel Raynal <> | Subject | Re: [PATCH 2/3] mtd: rawnand: stm32_fmc2: add STM32 FMC2 NAND flash controller driver |
| |
Hi Christophe,
<christophe.kerello@st.com> wrote on Mon, 17 Sep 2018 17:47:39 +0200:
> From: Christophe Kerello <christophe.kerello@st.com> > > 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> > ---
[...]
> +/* NAND callbacks setup */ > +static void stm32_fmc2_nand_callbacks_setup(struct stm32_fmc2 *fmc2) > +{ > + struct nand_chip *chip = &fmc2->chip; > + > + /* Specific callbacks to read/write a page */ > + chip->ecc.correct = stm32_fmc2_ham_correct; > + chip->ecc.write_page = stm32_fmc2_sequencer_write_page; > + chip->ecc.read_page = stm32_fmc2_sequencer_read_page; > + chip->ecc.write_page_raw = stm32_fmc2_sequencer_write_page_raw; > + chip->ecc.read_page_raw = stm32_fmc2_sequencer_read_page_raw;
Are you sure all the tests in mtd-utils are successful?
Thanks, Miquèl
| |