mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-28 11:18:45 +07:00
e8901f3ab5
This example allocates much more than needed for address regions. As for "denali_reg", as you see in drivers/mtd/nand/denali.h, all registers fit in 0x1000. As for "nand_data", this IP is generally configured to use Indexed Addressing mode, where there are only two registers in the address translation module (CTRL: 0x00, DATA: 0x10). Altera SOCFPGA is also this case. So, 0x20 is enough. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
36 lines
1.4 KiB
Plaintext
36 lines
1.4 KiB
Plaintext
* Denali NAND controller
|
|
|
|
Required properties:
|
|
- compatible : should be one of the following:
|
|
"altr,socfpga-denali-nand" - for Altera SOCFPGA
|
|
"socionext,uniphier-denali-nand-v5a" - for Socionext UniPhier (v5a)
|
|
"socionext,uniphier-denali-nand-v5b" - for Socionext UniPhier (v5b)
|
|
- reg : should contain registers location and length for data and reg.
|
|
- reg-names: Should contain the reg names "nand_data" and "denali_reg"
|
|
- interrupts : The interrupt number.
|
|
|
|
Optional properties:
|
|
- nand-ecc-step-size: see nand.txt for details. If present, the value must be
|
|
512 for "altr,socfpga-denali-nand"
|
|
1024 for "socionext,uniphier-denali-nand-v5a"
|
|
1024 for "socionext,uniphier-denali-nand-v5b"
|
|
- nand-ecc-strength: see nand.txt for details. Valid values are:
|
|
8, 15 for "altr,socfpga-denali-nand"
|
|
8, 16, 24 for "socionext,uniphier-denali-nand-v5a"
|
|
8, 16 for "socionext,uniphier-denali-nand-v5b"
|
|
- nand-ecc-maximize: see nand.txt for details
|
|
|
|
The device tree may optionally contain sub-nodes describing partitions of the
|
|
address space. See partition.txt for more detail.
|
|
|
|
Examples:
|
|
|
|
nand: nand@ff900000 {
|
|
#address-cells = <1>;
|
|
#size-cells = <1>;
|
|
compatible = "altr,socfpga-denali-nand";
|
|
reg = <0xff900000 0x20>, <0xffb80000 0x1000>;
|
|
reg-names = "nand_data", "denali_reg";
|
|
interrupts = <0 144 4>;
|
|
};
|