Re: [U-Boot] mtd: cfi: Add support for status register polling

2017-12-02 Thread Marek Vasut
On 11/18/2017 08:11 PM, York Sun wrote: > On 11/18/2017 02:24 AM, Marek Vasut wrote: >> On 11/17/2017 10:48 PM, York Sun wrote: >>> On 11/17/2017 12:59 PM, York Sun wrote: On 11/17/2017 11:04 AM, Marek Vasut wrote: > On 11/17/2017 08:02 PM, Marek Vasut wrote: >> On 11/17/2017 05:43

Re: [U-Boot] mtd: cfi: Add support for status register polling

2017-11-18 Thread York Sun
On 11/18/2017 02:24 AM, Marek Vasut wrote: > On 11/17/2017 10:48 PM, York Sun wrote: >> On 11/17/2017 12:59 PM, York Sun wrote: >>> On 11/17/2017 11:04 AM, Marek Vasut wrote: On 11/17/2017 08:02 PM, Marek Vasut wrote: > On 11/17/2017 05:43 PM, York Sun wrote: >> On 09/12/2017 10:09

Re: [U-Boot] mtd: cfi: Add support for status register polling

2017-11-18 Thread Marek Vasut
On 11/17/2017 10:48 PM, York Sun wrote: > On 11/17/2017 12:59 PM, York Sun wrote: >> On 11/17/2017 11:04 AM, Marek Vasut wrote: >>> On 11/17/2017 08:02 PM, Marek Vasut wrote: On 11/17/2017 05:43 PM, York Sun wrote: > On 09/12/2017 10:09 AM, Marek Vasut wrote: >> The status register is

Re: [U-Boot] mtd: cfi: Add support for status register polling

2017-11-17 Thread York Sun
On 11/17/2017 12:59 PM, York Sun wrote: > On 11/17/2017 11:04 AM, Marek Vasut wrote: >> On 11/17/2017 08:02 PM, Marek Vasut wrote: >>> On 11/17/2017 05:43 PM, York Sun wrote: On 09/12/2017 10:09 AM, Marek Vasut wrote: > The status register is optional in the AMD command sets, but it's

Re: [U-Boot] mtd: cfi: Add support for status register polling

2017-11-17 Thread York Sun
On 11/17/2017 11:04 AM, Marek Vasut wrote: > On 11/17/2017 08:02 PM, Marek Vasut wrote: >> On 11/17/2017 05:43 PM, York Sun wrote: >>> On 09/12/2017 10:09 AM, Marek Vasut wrote: The status register is optional in the AMD command sets, but it's presence can be checked by reading out CFI

Re: [U-Boot] mtd: cfi: Add support for status register polling

2017-11-17 Thread York Sun
On Nov 17, 2017, at 11:04, Marek Vasut > wrote: On 11/17/2017 08:02 PM, Marek Vasut wrote: On 11/17/2017 05:43 PM, York Sun wrote: On 09/12/2017 10:09 AM, Marek Vasut wrote: The status register is optional in the AMD command sets, but it's

Re: [U-Boot] mtd: cfi: Add support for status register polling

2017-11-17 Thread Marek Vasut
On 11/17/2017 08:02 PM, Marek Vasut wrote: > On 11/17/2017 05:43 PM, York Sun wrote: >> On 09/12/2017 10:09 AM, Marek Vasut wrote: >>> The status register is optional in the AMD command sets, but it's >>> presence can be checked by reading out CFI table entry 0xc bit 0. >>> If the register is

Re: [U-Boot] mtd: cfi: Add support for status register polling

2017-11-17 Thread Marek Vasut
On 11/17/2017 05:43 PM, York Sun wrote: > On 09/12/2017 10:09 AM, Marek Vasut wrote: >> The status register is optional in the AMD command sets, but it's >> presence can be checked by reading out CFI table entry 0xc bit 0. >> If the register is present, prefer using it's bit 7 to determine >> if

Re: [U-Boot] mtd: cfi: Add support for status register polling

2017-11-17 Thread York Sun
On 09/12/2017 10:09 AM, Marek Vasut wrote: > The status register is optional in the AMD command sets, but it's > presence can be checked by reading out CFI table entry 0xc bit 0. > If the register is present, prefer using it's bit 7 to determine > if the flash is busy over reading the flash ; this