[U-Boot] M29W256GL + WEIM in uboot
Hello, Im new to all of this, but I 've been reading most of the post related to the M29w256 numonyx and the u-boot documentation without any success :(
Im booting from MMC card and I want to parallel nor to be probed by cfi, but I have not succeeded since the uboot code freezes when at the beginning of the first "flash_cmd_write" in cfi_flash.c
/* Issue FLASH reset command */ flash_cmd_reset(info);
The CS0_BASE_ADDR has an start address matching #define WEIM_ARB_BASE_ADDR 0x08000000 , however the range of the WEIM interface register settings are between 021B_8000 -- 021B_8098.
Many board files has the WEIM CS0 as the start of the registers and I think this is why the NOR configuration is a matter of config settings like the ones below.
#define CONFIG_SYS_FLASH_BASE CS0_BASE_ADDR #define CONFIG_SYS_MAX_FLASH_BANKS 1 #define CONFIG_SYS_MAX_FLASH_SECT 256 #define CONFIG_SYS_FLASH_CFI_WIDTH FLASH_CFI_16BIT #define CONFIG_SYS_FLASH_CFI_AMD_RESET 1
/* Monitor at beginning of flash */ #define CONFIG_SYS_MONITOR_BASE CONFIG_SYS_FLASH_BASE #define CONFIG_SYS_MONITOR_LEN 0x40000 /* Reserve 256KiB */
#define CONFIG_ENV_SECT_SIZE 0x20000 #define CONFIG_ENV_SIZE CONFIG_ENV_SECT_SIZE #define CONFIG_ENV_ADDR (CONFIG_SYS_FLASH_BASE + 0x40000)
/* Address and size of Redundant Environment Sector */ #define CONFIG_ENV_OFFSET_REDUND (CONFIG_ENV_OFFSET + CONFIG_ENV_SIZE) #define CONFIG_ENV_SIZE_REDUND CONFIG_ENV_SIZE
If you could give me some help so that at least I could send write commands to the chip without hang pls...
Regards, Francisco
Hello, Im new to all of this, but I 've been reading most of the post related to the M29w256 numonyx and the u-boot documentation without any success :(
Im booting from MMC card and I want to parallel nor to be probed by cfi, but I have not succeeded since the uboot code freezes when at the beginning of the first "flash_cmd_write" in cfi_flash.c
/* Issue FLASH reset command */ flash_cmd_reset(info);The CS0_BASE_ADDR has an start address matching #define WEIM_ARB_BASE_ADDR 0x08000000 , however the range of the WEIM interface register settings are between 021B_8000 -- 021B_8098.
Many board files has the WEIM CS0 as the start of the registers and I think this is why the NOR configuration is a matter of config settings like the ones below.
#define CONFIG_SYS_FLASH_BASE CS0_BASE_ADDR #define CONFIG_SYS_MAX_FLASH_BANKS 1 #define CONFIG_SYS_MAX_FLASH_SECT 256 #define CONFIG_SYS_FLASH_CFI_WIDTH FLASH_CFI_16BIT #define CONFIG_SYS_FLASH_CFI_AMD_RESET 1
/* Monitor at beginning of flash */ #define CONFIG_SYS_MONITOR_BASE CONFIG_SYS_FLASH_BASE #define CONFIG_SYS_MONITOR_LEN 0x40000 /* Reserve 256KiB */
#define CONFIG_ENV_SECT_SIZE 0x20000 #define CONFIG_ENV_SIZE CONFIG_ENV_SECT_SIZE #define CONFIG_ENV_ADDR (CONFIG_SYS_FLASH_BASE + 0x40000)
/* Address and size of Redundant Environment Sector */ #define CONFIG_ENV_OFFSET_REDUND (CONFIG_ENV_OFFSET + CONFIG_ENV_SIZE) #define CONFIG_ENV_SIZE_REDUND CONFIG_ENV_SIZE
If you could give me some help so that at least I could send write commands to the chip without hang pls...
You're pointing CFI to configuration registers, you need to point it to where the NOR flash is MMAPed. If it's not MMAPed, this isn't your driver. M
On Mon, Feb 13, 2012 at 6:30 PM, Francisco Muñoz francisco.missael@gmail.com wrote:
Hello, Im new to all of this, but I 've been reading most of the post related to the M29w256 numonyx and the u-boot documentation without any success :(
Which SoC are you using and which board?
On Mon, Feb 13, 2012 at 3:33 PM, Fabio Estevam festevam@gmail.com wrote:
On Mon, Feb 13, 2012 at 6:30 PM, Francisco Muñoz francisco.missael@gmail.com wrote:
Hello, Im new to all of this, but I 've been reading most of the post related to the M29w256 numonyx and the u-boot documentation without any success :(
Which SoC are you using and which board?
Hey Fabio its me Francisco. Im with the im6X
On Mon, Feb 13, 2012 at 7:39 PM, Francisco Muñoz francisco.missael@gmail.com wrote:
Im with the im6X
Take a look for mx31ads.c as an example. You need to setup the chip select like in mxc_setup_weimcs() function.
BTW, I don't see any current mx6 board with NOR in mainline U-boot.
On Mon, Feb 13, 2012 at 4:59 PM, Fabio Estevam festevam@gmail.com wrote:
On Mon, Feb 13, 2012 at 7:39 PM, Francisco Muñoz francisco.missael@gmail.com wrote:
Im with the im6X
Take a look for mx31ads.c as an example. You need to setup the chip select like in mxc_setup_weimcs() function.
BTW, I don't see any current mx6 board with NOR in mainline U-boot.
I already did the reset with this lines in the board/freescale/mx6q_boardsabreauto.c board_init()
writel(0x00020001,WEIM_BASE_ADDR); writel(0x1C022000,WEIM_BASE_ADDR + 0x8); writel(0x0804a240,WEIM_BASE_ADDR + 0x10);
However, the uboot code hangs when i runt on the board */ 1896 ulong flash_get_size (phys_addr_t base, int banknum) 1897 { 1898 flash_info_t *info = &flash_info[banknum]; 1899 int i, j; 1900 flash_sect_t sect_cnt; 1901 phys_addr_t sector; 1902 unsigned long tmp; 1903 int size_ratio; 1904 uchar num_erase_regions; 1905 int erase_region_size; 1906 int erase_region_count; 1907 struct cfi_qry qry; 1908 unsigned long max_size; 1909 1910 memset(&qry, 0, sizeof(qry)); 1911 1912 info->ext_addr = 0; 1913 info->cfi_version = 0; 1914 #ifdef CONFIG_SYS_FLASH_PROTECTION 1915 info->legacy_unlock = 0; 1916 #endif 1917 1918 info->start[0] = (ulong)map_physmem(base, info->portwidth, MAP_NOCACHE); 1919 printf("Estamos ok con el pointer malo %u \n",info->portwidth); 1920 if (flash_detect_cfi (info, &qry)) <-------------------------------------------------------------------------------------------- It hangs in the reset commands cfi_flash.c
Regards, Francisco
On Mon, Feb 13, 2012 at 9:25 PM, Francisco Muñoz francisco.missael@gmail.com wrote:
I already did the reset with this lines in the board/freescale/mx6q_boardsabreauto.c board_init()
Hmm...this board is not in mainline U-boot, so this is not the correct place to ask for assistance.
participants (3)
-
Fabio Estevam -
Francisco Muñoz -
Marek Vasut