Commit Graph

6 Commits

Author SHA1 Message Date
Lionel Debieve ea30694561 nand: raw_nand: fix timeout issue in nand_wait_ready
nand_wait_ready is called with a millisecond delay
but the timeout used a micro second. Fixing the conversion
in the timeout call.
The prototype of the function is also changed to use an unsigned int
parameter.

Change-Id: Ia3281be7980477dfbfdb842308d35ecd8b926fb8
Signed-off-by: Lionel Debieve <lionel.debieve@st.com>
Signed-off-by: Yann Gautier <yann.gautier@st.com>
2020-09-24 09:32:23 +02:00
Lionel Debieve 6751b83652 mtd: spi_nor: change message level on macronix detection
Change the detection message from WARN to INFO when macronix
NOR is detected.

Change-Id: I488696f1fb75b823e85decfcd6cd32e7b36a6c2e
Signed-off-by: Lionel Debieve <lionel.debieve@st.com>
Signed-off-by: Yann Gautier <yann.gautier@st.com>
2020-09-24 09:30:44 +02:00
Lionel Debieve a13550d0ec Add SPI-NOR framework
SPI-NOR framework is based on SPI-MEM framework using
spi_mem_op execution interface.

It implements read functions and allows NOR configuration
up to quad mode.
Default management is 1 data line but it can be overridden
by platform.
It also includes specific quad mode configuration for
Spansion, Micron and Macronix memories.

Change-Id: If49502b899b4a75f6ebc3190f6bde1013651197f
Signed-off-by: Lionel Debieve <lionel.debieve@st.com>
Signed-off-by: Christophe Kerello <christophe.kerello@st.com>
2020-01-20 11:32:59 +01:00
Lionel Debieve c3e5773904 Add SPI-NAND framework
This framework supports SPI-NAND and is based on the
SPI-MEM framework for SPI operations. It uses a common high
level access using the io_mtd.

It is limited to the read functionalities.

Default behavior is the basic one data line operation
but it could be overridden by platform.

Change-Id: Icb4e0887c4003a826f47c876479dd004a323a32b
Signed-off-by: Lionel Debieve <lionel.debieve@st.com>
Signed-off-by: Christophe Kerello <christophe.kerello@st.com>
2020-01-20 11:32:59 +01:00
Lionel Debieve 05e6a5638b Add SPI-MEM framework
This framework supports SPI operations using a common
spi_mem_op structure:
 - command
 - addr
 - dummy
 - data

The framework manages SPI bus configuration:
 - speed
 - bus width (Up to quad mode)
 - chip select

Change-Id: Idc2736c59bfc5ac6e55429eba5d385275ea3fbde
Signed-off-by: Lionel Debieve <lionel.debieve@st.com>
Signed-off-by: Christophe Kerello <christophe.kerello@st.com>
2020-01-20 11:32:59 +01:00
Lionel Debieve b114abb609 Add raw NAND framework
The raw NAND framework supports SLC NAND devices.

It introduces a new high level interface (io_mtd) that
defines operations a driver can register to the NAND framework.
This interface will fill in the io_mtd device specification:
	- device_size
        - erase_size
that could be used by the io_storage interface.

NAND core source file integrates the standard read loop that
performs NAND device read operations using a skip bad block strategy.
A platform buffer must be defined in case of unaligned
data. This buffer must fit to the maximum device page size
defined by PLATFORM_MTD_MAX_PAGE_SIZE.

The raw_nand.c source file embeds the specific NAND operations
to read data.
The read command is a raw page read without any ECC correction.
This can be overridden by a low level driver.
No generic support for write or erase command or software
ECC correction.

NAND ONFI detection is available and can be enabled using
NAND_ONFI_DETECT=1.
For non-ONFI NAND management, platform can define required
information.

Change-Id: Id80e9864456cf47f02b74938cf25d99261da8e82
Signed-off-by: Lionel Debieve <lionel.debieve@st.com>
Signed-off-by: Christophe Kerello <christophe.kerello@st.com>
2020-01-20 11:32:59 +01:00