From 06d01dbe000057e5df4af0f113242f0eba716340 Mon Sep 17 00:00:00 2001 From: wdenk Date: Fri, 14 Mar 2003 20:47:52 +0000 Subject: * Avoid flicker on the TRAB's VFD by synchronizing the enable with the HSYNC/VSYNC. Requires new CPLD code (Version 101 for Rev. 100 boards, version 153 for Rev. 200 boards). MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit * Patch by Vladimir Gurevich, 12 Mar 2003: Fix relocation problem of statically initialized string pointers in common/cmd_pci.c * Patch by Kai-Uwe Blöm, 12 Mar 2003: Cleanup & bug fixes for JFFS2 code: - the memory mangement was broken. It caused havoc on malloc by writing beyond the block boundaries. - the length calculation for files was wrong, sometimes resulting in short file reads. - data copying now optionally takes fragment version numbers into account, to avoid copying from older data. See doc/README.JFFS2 for details. --- board/lubbock/flash.c | 339 +++++++++++++++++++++++++------------------------- 1 file changed, 169 insertions(+), 170 deletions(-) (limited to 'board/lubbock') diff --git a/board/lubbock/flash.c b/board/lubbock/flash.c index a938750..dcf829b 100644 --- a/board/lubbock/flash.c +++ b/board/lubbock/flash.c @@ -28,7 +28,7 @@ #include -flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */ +flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */ /* Board support for 1 or 2 flash devices */ #define FLASH_PORT_WIDTH32 @@ -53,50 +53,47 @@ flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */ * Functions */ static ulong flash_get_size (FPW *addr, flash_info_t *info); -static int write_data (flash_info_t *info, ulong dest, FPW data); -static void flash_get_offsets (ulong base, flash_info_t *info); -void inline spin_wheel(void); +static int write_data (flash_info_t *info, ulong dest, FPW data); +static void flash_get_offsets (ulong base, flash_info_t *info); +void inline spin_wheel (void); /*----------------------------------------------------------------------- */ unsigned long flash_init (void) { - int i; - ulong size = 0; - - for (i = 0; i < CFG_MAX_FLASH_BANKS; i++) - { - switch (i) - { - case 0: - flash_get_size((FPW *)PHYS_FLASH_1, &flash_info[i]); - flash_get_offsets(PHYS_FLASH_1, &flash_info[i]); - break; - case 1: - flash_get_size((FPW *)PHYS_FLASH_2, &flash_info[i]); - flash_get_offsets(PHYS_FLASH_2, &flash_info[i]); - break; - default: - panic("configured to many flash banks!\n"); - break; - } - size += flash_info[i].size; - } - - /* Protect monitor and environment sectors - */ - flash_protect(FLAG_PROTECT_SET, - CFG_FLASH_BASE, - CFG_FLASH_BASE + _armboot_end_data - _armboot_start, - &flash_info[0]); - - flash_protect(FLAG_PROTECT_SET, - CFG_ENV_ADDR, - CFG_ENV_ADDR + CFG_ENV_SIZE - 1, - &flash_info[0]); - - return size; + int i; + ulong size = 0; + + for (i = 0; i < CFG_MAX_FLASH_BANKS; i++) { + switch (i) { + case 0: + flash_get_size ((FPW *) PHYS_FLASH_1, &flash_info[i]); + flash_get_offsets (PHYS_FLASH_1, &flash_info[i]); + break; + case 1: + flash_get_size ((FPW *) PHYS_FLASH_2, &flash_info[i]); + flash_get_offsets (PHYS_FLASH_2, &flash_info[i]); + break; + default: + panic ("configured to many flash banks!\n"); + break; + } + size += flash_info[i].size; + } + + /* Protect monitor and environment sectors + */ + flash_protect ( FLAG_PROTECT_SET, + CFG_FLASH_BASE, + CFG_FLASH_BASE + _armboot_end_data - _armboot_start, + &flash_info[0] ); + + flash_protect ( FLAG_PROTECT_SET, + CFG_ENV_ADDR, + CFG_ENV_ADDR + CFG_ENV_SIZE - 1, &flash_info[0] ); + + return size; } /*----------------------------------------------------------------------- @@ -119,39 +116,45 @@ static void flash_get_offsets (ulong base, flash_info_t *info) /*----------------------------------------------------------------------- */ -void flash_print_info (flash_info_t *info) +void flash_print_info (flash_info_t *info) { int i; if (info->flash_id == FLASH_UNKNOWN) { printf ("missing or unknown FLASH type\n"); return; - } + } switch (info->flash_id & FLASH_VENDMASK) { - case FLASH_MAN_INTEL: printf ("INTEL "); break; - default: printf ("Unknown Vendor "); break; + case FLASH_MAN_INTEL: + printf ("INTEL "); + break; + default: + printf ("Unknown Vendor "); + break; } switch (info->flash_id & FLASH_TYPEMASK) { - case FLASH_28F128J3A: - printf ("28F128J3A\n"); break; - default: printf ("Unknown Chip Type\n"); break; - } + case FLASH_28F128J3A: + printf ("28F128J3A\n"); + break; + default: + printf ("Unknown Chip Type\n"); + break; + } printf (" Size: %ld MB in %d Sectors\n", - info->size >> 20, info->sector_count); + info->size >> 20, info->sector_count); printf (" Sector Start Addresses:"); - for (i=0; isector_count; ++i) { - if ((i % 5) == 0) - printf ("\n "); + for (i = 0; i < info->sector_count; ++i) { + if ((i % 5) == 0) + printf ("\n "); printf (" %08lX%s", info->start[i], - info->protect[i] ? " (RO)" : " " - ); - } - printf ("\n"); + info->protect[i] ? " (RO)" : " "); + } + printf ("\n"); return; } @@ -163,37 +166,37 @@ static ulong flash_get_size (FPW *addr, flash_info_t *info) volatile FPW value; /* Write auto select command: read Manufacturer ID */ - addr[0x5555] = (FPW)0x00AA00AA; - addr[0x2AAA] = (FPW)0x00550055; - addr[0x5555] = (FPW)0x00900090; + addr[0x5555] = (FPW) 0x00AA00AA; + addr[0x2AAA] = (FPW) 0x00550055; + addr[0x5555] = (FPW) 0x00900090; - mb(); + mb (); value = addr[0]; - switch (value) { + switch (value) { - case (FPW)INTEL_MANUFACT: - info->flash_id = FLASH_MAN_INTEL; - break; + case (FPW) INTEL_MANUFACT: + info->flash_id = FLASH_MAN_INTEL; + break; default: info->flash_id = FLASH_UNKNOWN; info->sector_count = 0; info->size = 0; - addr[0] = (FPW)0x00FF00FF; /* restore read mode */ - return (0); /* no or unknown flash */ + addr[0] = (FPW) 0x00FF00FF; /* restore read mode */ + return (0); /* no or unknown flash */ } - mb(); - value = addr[1]; /* device ID */ + mb (); + value = addr[1]; /* device ID */ - switch (value) { + switch (value) { - case (FPW)INTEL_ID_28F128J3A: - info->flash_id += FLASH_28F128J3A; - info->sector_count = 128; - info->size = 0x02000000; - break; /* => 16 MB */ + case (FPW) INTEL_ID_28F128J3A: + info->flash_id += FLASH_28F128J3A; + info->sector_count = 128; + info->size = 0x02000000; + break; /* => 16 MB */ default: info->flash_id = FLASH_UNKNOWN; @@ -204,9 +207,9 @@ static ulong flash_get_size (FPW *addr, flash_info_t *info) printf ("** ERROR: sector count %d > max (%d) **\n", info->sector_count, CFG_MAX_FLASH_SECT); info->sector_count = CFG_MAX_FLASH_SECT; - } + } - addr[0] = (FPW)0x00FF00FF; /* restore read mode */ + addr[0] = (FPW) 0x00FF00FF; /* restore read mode */ return (info->size); } @@ -215,34 +218,34 @@ static ulong flash_get_size (FPW *addr, flash_info_t *info) /*----------------------------------------------------------------------- */ -int flash_erase (flash_info_t *info, int s_first, int s_last) +int flash_erase (flash_info_t *info, int s_first, int s_last) { - int flag, prot, sect; - ulong type, start, now, last; + int flag, prot, sect; + ulong type, start, last; int rcode = 0; - if ((s_first < 0) || (s_first > s_last)) { + if ((s_first < 0) || (s_first > s_last)) { if (info->flash_id == FLASH_UNKNOWN) { printf ("- missing\n"); } else { printf ("- no sectors to erase\n"); } return 1; - } + } type = (info->flash_id & FLASH_VENDMASK); if ((type != FLASH_MAN_INTEL)) { printf ("Can't erase unknown flash type %08lx - aborted\n", info->flash_id); return 1; - } + } - prot = 0; - for (sect=s_first; sect<=s_last; ++sect) { - if (info->protect[sect]) { - prot++; + prot = 0; + for (sect = s_first; sect <= s_last; ++sect) { + if (info->protect[sect]) { + prot++; + } } - } if (prot) { printf ("- Warning: %d protected sectors will not be erased!\n", @@ -252,42 +255,42 @@ int flash_erase (flash_info_t *info, int s_first, int s_last) } start = get_timer (0); - last = start; + last = start; - /* Disable interrupts which might cause a timeout here */ - flag = disable_interrupts(); + /* Disable interrupts which might cause a timeout here */ + flag = disable_interrupts (); - /* Start erase on unprotected sectors */ - for (sect = s_first; sect<=s_last; sect++) { + /* Start erase on unprotected sectors */ + for (sect = s_first; sect <= s_last; sect++) { if (info->protect[sect] == 0) { /* not protected */ - FPWV *addr = (FPWV *)(info->start[sect]); + FPWV *addr = (FPWV *) (info->start[sect]); FPW status; - printf("Erasing sector %2d ... ", sect); + printf ("Erasing sector %2d ... ", sect); - /* arm simple, non interrupt dependent timer */ - reset_timer_masked(); + /* arm simple, non interrupt dependent timer */ + reset_timer_masked (); - *addr = (FPW)0x00500050; /* clear status register */ - *addr = (FPW)0x00200020; /* erase setup */ - *addr = (FPW)0x00D000D0; /* erase confirm */ + *addr = (FPW) 0x00500050; /* clear status register */ + *addr = (FPW) 0x00200020; /* erase setup */ + *addr = (FPW) 0x00D000D0; /* erase confirm */ - while (((status = *addr) & (FPW)0x00800080) != (FPW)0x00800080) { - if (get_timer_masked() > CFG_FLASH_ERASE_TOUT) { + while (((status = *addr) & (FPW) 0x00800080) != (FPW) 0x00800080) { + if (get_timer_masked () > CFG_FLASH_ERASE_TOUT) { printf ("Timeout\n"); - *addr = (FPW)0x00B000B0; /* suspend erase */ - *addr = (FPW)0x00FF00FF; /* reset to read mode */ + *addr = (FPW) 0x00B000B0; /* suspend erase */ + *addr = (FPW) 0x00FF00FF; /* reset to read mode */ rcode = 1; break; - } - } + } + } - *addr = 0x00500050; /* clear status register cmd. */ - *addr = 0x00FF00FF; /* resest to read mode */ + *addr = 0x00500050; /* clear status register cmd. */ + *addr = 0x00FF00FF; /* resest to read mode */ printf (" done\n"); - } - } + } + } return rcode; } @@ -301,7 +304,7 @@ int flash_erase (flash_info_t *info, int s_first, int s_last) int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt) { - ulong cp, wp; + ulong cp, wp; FPW data; int count, i, l, rc, port_width; @@ -317,67 +320,66 @@ int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt) port_width = 4; #endif - /* - * handle unaligned start bytes - */ - if ((l = addr - wp) != 0) { - data = 0; - for (i=0, cp=wp; i0; ++i) { + /* + * handle unaligned start bytes + */ + if ((l = addr - wp) != 0) { + data = 0; + for (i = 0, cp = wp; i < l; ++i, ++cp) { + data = (data << 8) | (*(uchar *) cp); + } + for (; i < port_width && cnt > 0; ++i) { data = (data << 8) | *src++; - --cnt; - ++cp; - } - for (; cnt==0 && i= port_width) { data = 0; - for (i=0; i 0x800) - { - spin_wheel(); + if (count++ > 0x800) { + spin_wheel (); count = 0; } - } + } - if (cnt == 0) { + if (cnt == 0) { return (0); - } + } - /* - * handle unaligned tail bytes - */ - data = 0; - for (i=0, cp=wp; i0; ++i, ++cp) { + /* + * handle unaligned tail bytes + */ + data = 0; + for (i = 0, cp = wp; i < port_width && cnt > 0; ++i, ++cp) { data = (data << 8) | *src++; - --cnt; - } - for (; i CFG_FLASH_WRITE_TOUT) { - *addr = (FPW)0x00FF00FF; /* restore read mode */ + while (((status = *addr) & (FPW) 0x00800080) != (FPW) 0x00800080) { + if (get_timer_masked () > CFG_FLASH_WRITE_TOUT) { + *addr = (FPW) 0x00FF00FF; /* restore read mode */ return (1); } - } + } - *addr = (FPW)0x00FF00FF; /* restore read mode */ + *addr = (FPW) 0x00FF00FF; /* restore read mode */ return (0); } -void inline -spin_wheel(void) +void inline spin_wheel (void) { - static int r=0,p=0; - static char w[] = "\\/-"; + static int p = 0; + static char w[] = "\\/-"; - printf("\010%c", w[p]); - (++p == 3) ? (p = 0) : 0; + printf ("\010%c", w[p]); + (++p == 3) ? (p = 0) : 0; } - -- cgit v1.1