From mboxrd@z Thu Jan 1 00:00:00 1970 From: prakash bedge Date: Fri, 9 Apr 2010 13:35:02 +0530 Subject: [U-Boot] Does U-boot supports Spansion S29GL512P NOR Flash? In-Reply-To: <201004090935.13678.sr@denx.de> References: <201004090810.03062.sr@denx.de> <201004090935.13678.sr@denx.de> Message-ID: List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Hi Stefan, >> Does it mean I have to CFI_MTD ot common CFI_DRIVER will works? I was asking that do I also need to add below settings in my board config file. /* * Dynamic MTD partition support */ #define CONFIG_CMD_MTDPARTS #define CONFIG_MTD_DEVICE /* needed for mtdparts commands */ #define CONFIG_FLASH_CFI_MTD #define MTDIDS_DEFAULT "nor0=fc000000.flash" >And you need to configure your access timing for the chip select to the NOR Chip correctly of course. In which source file I can see present access timings for the chip select. In which file I need to do these changes? I tried with the below setting but I am getting the same error as flash not found. So I am little bit concerned. Please tell which boards supports the S29GL512P NOR flash, so that I can check for reference. Regards, Prakash On Fri, Apr 9, 2010 at 1:05 PM, Stefan Roese wrote: > Hi Prakash, > > On Friday 09 April 2010 09:22:21 prakash bedge wrote: > > Thanks for details. But I didn't get it clearly. > > > > Does it mean I have to CFI_MTD ot common CFI_DRIVER will works? > > I don't understand this question. > > > Which c source file I need to check the support for this chip? > > > > I am using below settings. > > *----------------------------------------------------------------------- > > * FLASH related > > > *----------------------------------------------------------------------*/ > > #define CONFIG_SYS_FLASH_CFI > > #define CONFIG_FLASH_CFI_DRIVER > > #define CONFIG_SYS_FLASH_EMPTY_INFO /* print 'E' for empty sector on > > flinfo */ > > > > #define CONFIG_SYS_FLASH_BANKS_LIST {CONFIG_SYS_FLASH_BASE} > > #define CONFIG_SYS_MAX_FLASH_BANKS 1 /* number of banks */ > > #define CONFIG_SYS_MAX_FLASH_SECT 512 /* sectors per device */ > > #define CONFIG_FLASH_SHOW_PROGRESS 1 > > > > #define CONFIG_SYS_FLASH_ERASE_TOUT 220000 /* Timeout for Flash Erase (in > > ms) */ > > #define CONFIG_SYS_FLASH_WRITE_TOUT 100 /* Timeout for Flash Write (in > > ms) */ > > > > #define CONFIG_ENV_SECT_SIZE 0x20000 /* size of one complete sector */ > > #define CONFIG_ENV_ADDR (CONFIG_SYS_MONITOR_BASE-CONFIG_ENV_SECT_SIZE) > > #define CONFIG_ENV_SIZE 0x4000 /* Total Size of Environment Sector */ > > This looks good. With these defines the CFI driver should work. You might > want > to add CONFIG_SYS_FLASH_USE_BUFFER_WRITE for write speedup. And you need to > configure your access timing for the chip select to the NOR Chip correctly > of > course. > > Cheers, > Stefan > > -- > DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel > HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany > Phone: (+49)-8142-66989-0 Fax: (+49)-8142-66989-80 Email: office at denx.de >