Modifications for 1.1.5:
======================================================================
+* Add support for TQM8xxL modules at 66 MHz clock (CPU/bus 1:1)
+
+* Patch by Alexandre Guillaume, 04 Mar 2002:
+ Add suport for ST M29F040B flash chip on PCIPPC-2/6 boards.
+
+* Fix debug output (bdinfo was printed after "fixing" the clock
+ frequencies), so the debug output was wrong.
+
+* Added some comments about coding standards and submitting patches
+ to README file
+
* Patch by Kári Davíðsson, 2 Mar 2002:
- add network configuration for FLAGADM board
- fix UPM tables for FLAGADM board
echo "#include <config_$(@:_config=).h>" >config.h
# Play some tricks for configuration selection
-# All boards can come with 80MHz clock,
+# All boards can come with 50 MHz (default), 66MHz or 80MHz clock,
# but only 855 and 860 boards may come with FEC
# and 823 boards may have LCD support
-xtract = $(subst _L2,,$(subst _80MHz,,$(subst _266MHz,,$(subst _LCD,,$(subst _FEC,,$(subst _config,,$1))))))
+xtract = $(subst _L2,,$(subst _66MHz,,$(subst _80MHz,,$(subst _266MHz,,$(subst _LCD,,$(subst _FEC,,$(subst _config,,$1)))))))
FPS850L_config \
TQM823L_config \
+TQM823L_66MHz_config \
TQM823L_80MHz_config \
TQM823L_LCD_config \
+TQM823L_LCD_66MHz_config \
TQM823L_LCD_80MHz_config \
TQM850L_config \
+TQM850L_66MHz_config \
TQM850L_80MHz_config \
TQM855L_config \
+TQM855L_66MHz_config \
TQM855L_80MHz_config \
TQM855L_FEC_config \
+TQM855L_FEC_66MHz_config \
TQM855L_FEC_80MHz_config \
TQM860L_config \
+TQM860L_66MHz_config \
TQM860L_80MHz_config \
TQM860L_FEC_config \
+TQM860L_FEC_66MHz_config \
TQM860L_FEC_80MHz_config: unconfig
@echo "Configuring for $(call xtract,$@) Board..." ; \
cd ./include ; \
{ echo "#define CONFIG_FEC_ENET" >>include/config.h ; \
echo "... with FEC support" ; \
}
+ @[ -z "$(findstring _66MHz,$@)" ] || \
+ { echo "#define CONFIG_66MHz" >>include/config.h ; \
+ echo "... with 66MHz system clock" ; \
+ }
@[ -z "$(findstring _80MHz,$@)" ] || \
{ echo "#define CONFIG_80MHz" >>include/config.h ; \
echo "... with 80MHz system clock" ; \
what you (and your PPCBoot users) are doing. Data
cache cannot be enabled on systems like the 8xx or
8260 (where accesses to the IMMR region must be
- uncached), and it cannot be enabled on all other
+ uncached), and it cannot be disabled on all other
systems where we (mis-) use the data cache to hold an
initial stack and some data.
that you are restricted in several ways, mostly because you are
running from ROM, and because the code will have to be relocated to a
new address in RAM.
+
+
+Coding Standards:
+-----------------
+
+All contributions to PPCBoot should conform to the Linux kernel
+coding style; see the file "Documentation/CodingStyle" in your Linux
+kernel source directory.
+
+Please note that PPCBoot is implemented in C (and to some small parts
+in Assembler); no C++ is used, so please do not use C++ style
+comments (//) in your code.
+
+Submissions which do not conform to the standards may be returned
+with a request to reformat the changes.
+
+
+Submitting Patches:
+-------------------
+
+Since the number of patches for PPCBoot is growing, we need to
+establish some rules. Submissions which do not conform to these rules
+may be rejected, even when they contain important and valuable stuff.
+
+
+When you send a patch, please include the following information with
+it:
+
+* For bug fixes: a description of the bug and how your patch fixes
+ this bug. Please try to include a way of demonstrating that the
+ patch actually fixes something.
+
+* For new features: a description of the feature and your
+ implementation.
+
+* A CHANGELOG entry as plaintext (separate from the patch)
+
+* For major contributions, your entry to the CREDITS file
+
+* When you add support for a new board, don't forget to add this
+ board to the MAKEALL script, too.
+
+* If your patch adds new configuration options, don't forget to
+ document these in the README file.
+
+* The patch itself. If you are accessing the CVS repository use "cvs
+ update; cvs diff -puRN"; else, use "diff -purN OLD NEW". If your
+ version of diff does not support these options, then get the latest
+ version of GNU diff.
+
+ We accept patches as plain text, MIME attachments or as uuencoded
+ gzipped text.
+
+Notes:
+
+* Before sending the patch, run the MAKEALL script on your patched
+ source tree and make sure that no errors or warnings are reported
+ for any of the boards.
+
+* Keep your modifications to the necessary minimum: A patch
+ containing several unrelated changes or arbitrary reformats will be
+ returned with a request to re-formatting / split it.
+
+* If you modify existing code, make sure that your new code does not
+ add to the memory footprint of the code ;-) Small is beautiful!
+ When adding new features, these should compile conditionally only
+ (using #ifdef), and the resulting code with the new feature
+ disabled must not need more memory than the old code without your
+ modification.
info->flash_id = FLASH_MAN_FUJ;
break;
+ case STM_MANUFACT:
+ info->flash_id = FLASH_MAN_STM;
+ break;
+
default:
info->flash_id = FLASH_UNKNOWN;
info->sector_count = 0;
info->sector_count = 64;
info->size = 0x01000000;
break; /* => 16Mb */
+
+ case STM_ID_F040B:
+ DEBUGF("M29F040B\n");
+ info->flash_id += FLASH_AM040;
+ info->sector_count = 8;
+ info->size = 0x00080000;
+ break; /* => 512 kB */
+
default:
info->flash_id = FLASH_UNKNOWN;
flash_reset (addr);
return 1;
}
- if (info->flash_id == FLASH_UNKNOWN ||
- info->flash_id > FLASH_AMD_COMP) {
+ if (info->flash_id == FLASH_UNKNOWN) {
printf ("Can't erase unknown flash type %08lx - aborted\n",
info->flash_id);
return 1;
case FLASH_MAN_AMD: printf ("AMD "); break;
case FLASH_MAN_FUJ: printf ("FUJITSU "); break;
case FLASH_MAN_BM: printf ("BRIGHT MICRO "); break;
+ case FLASH_MAN_STM: printf ("SGS THOMSON "); break;
default: printf ("Unknown Vendor "); break;
}
*/
int checkboard (void)
{
- printf ("PCIPPC-2\n");
+#ifdef CONFIG_PCIPPC2
+ printf ("Gespac PCIPPC-2\n");
+#else
+ printf ("Gespac PCIPPC-6\n");
+#endif
return 1;
}
/*
- * (C) Copyright 2000
+ * (C) Copyright 2000, 2001, 2002
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* See file CREDITS for list of people who contributed to this
#ifdef DEBUG
printf ("## cmdline at 0x%08lX ... 0x%08lX\n", cmd_start, cmd_end);
+
+ do_bdinfo (NULL, kbd, 0, 0, NULL);
#endif
*kbd = *bd;
}
#ifdef DEBUG
- do_bdinfo (NULL, kbd, 0, 0, NULL);
-
printf ("## Transferring control to Linux (at address %08lx) ...\n",
(ulong)kernel);
#endif
.globl _end_of_vectors
_end_of_vectors:
- . = 0x3000
+ . = 0x2000
boot_cold:
boot_warm:
/* enable execptions from RAM vectors */
mfmsr r7
- li r8,MSR_IP
+ li r8,MSR_IP
andc r7,r7,r8
mtmsr r7
/*
- * (C) Copyright 2000, 2001
+ * (C) Copyright 2000, 2001, 2002
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* See file CREDITS for list of people who contributed to this
#define CFG_REMAP_OR_AM 0x80000000 /* OR addr mask */
#define CFG_PRELIM_OR_AM 0xE0000000 /* OR addr mask */
-/* FLASH timing: ACS = 11, TRLX = 0, CSNT = 1, SCY = 5, EHTR = 1 */
-#define CFG_OR_TIMING_FLASH (OR_CSNT_SAM | OR_ACS_DIV2 | OR_BI | \
- OR_SCY_5_CLK | OR_EHTR)
+/*
+ * FLASH timing:
+ */
+#if defined(CONFIG_80MHz)
+/* 80 MHz CPU - 40 MHz bus: ACS = 00, TRLX = 0, CSNT = 1, SCY = 3, EHTR = 1 */
+#define CFG_OR_TIMING_FLASH (OR_ACS_DIV1 | 0 | OR_CSNT_SAM | \
+ OR_SCY_3_CLK | OR_EHTR | OR_BI)
+#elif defined(CONFIG_66MHz)
+/* 66 MHz CPU - 66 MHz bus: ACS = 00, TRLX = 1, CSNT = 1, SCY = 3, EHTR = 1 */
+#define CFG_OR_TIMING_FLASH (OR_ACS_DIV1 | OR_TRLX | OR_CSNT_SAM | \
+ OR_SCY_3_CLK | OR_EHTR | OR_BI)
+#else /* 50 MHz */
+/* 50 MHz CPU - 50 MHz bus: ACS = 00, TRLX = 1, CSNT = 1, SCY = 2, EHTR = 1 */
+#define CFG_OR_TIMING_FLASH (OR_ACS_DIV1 | OR_TRLX | OR_CSNT_SAM | \
+ OR_SCY_2_CLK | OR_EHTR | OR_BI)
+#endif /*CONFIG_??MHz */
#define CFG_OR0_REMAP (CFG_REMAP_OR_AM | CFG_OR_TIMING_FLASH)
#define CFG_OR0_PRELIM (CFG_PRELIM_OR_AM | CFG_OR_TIMING_FLASH)
/*
* Memory Periodic Timer Prescaler
+ *
+ * The Divider for PTA (refresh timer) configuration is based on an
+ * example SDRAM configuration (64 MBit, one bank). The adjustment to
+ * the number of chip selects (NCS) and the actually needed refresh
+ * rate is done by setting MPTPR.
+ *
+ * PTA is calculated from
+ * PTA = (gclk * Trefresh) / ((2 ^ (2 * DFBRG)) * PTP * NCS)
+ *
+ * gclk CPU clock (not bus clock!)
+ * Trefresh Refresh cycle * 4 (four word bursts used)
+ *
+ * 4096 Rows from SDRAM example configuration
+ * 1000 factor s -> ms
+ * 32 PTP (pre-divider from MPTPR) from SDRAM example configuration
+ * 4 Number of refresh cycles per period
+ * 64 Refresh cycle in ms per number of rows
+ * --------------------------------------------
+ * Divider = 4096 * 32 * 1000 / (4 * 64) = 512000
+ *
+ * 50 MHz => 50.000.000 / Divider = 98
+ * 66 Mhz => 66.000.000 / Divider = 129
+ * 80 Mhz => 80.000.000 / Divider = 156
*/
+#if defined(CONFIG_80MHz)
+#define CFG_MAMR_PTA 156
+#elif defined(CONFIG_66MHz)
+#define CFG_MAMR_PTA 129
+#else /* 50 MHz */
+#define CFG_MAMR_PTA 98
+#endif /*CONFIG_??MHz */
-/* periodic timer for refresh */
-#define CFG_MAMR_PTA 97 /* start with divider for 100 MHz */
-
-/* refresh rate 15.6 us (= 64 ms / 4K = 62.4 / quad bursts) for <= 128 MBit */
+/*
+ * For 16 MBit, refresh rates could be 31.3 us
+ * (= 64 ms / 2K = 125 / quad bursts).
+ * For a simpler initialization, 15.6 us is used instead.
+ *
+ * #define CFG_MPTPR_2BK_2K MPTPR_PTP_DIV32 for 2 banks
+ * #define CFG_MPTPR_1BK_2K MPTPR_PTP_DIV64 for 1 bank
+ */
#define CFG_MPTPR_2BK_4K MPTPR_PTP_DIV16 /* setting for 2 banks */
#define CFG_MPTPR_1BK_4K MPTPR_PTP_DIV32 /* setting for 1 bank */
/*
- * (C) Copyright 2000
+ * (C) Copyright 2000, 2001, 2002
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* See file CREDITS for list of people who contributed to this
#define CFG_REMAP_OR_AM 0x80000000 /* OR addr mask */
#define CFG_PRELIM_OR_AM 0xE0000000 /* OR addr mask */
-/* FLASH timing: ACS = 11, TRLX = 0, CSNT = 1, SCY = 5, EHTR = 1 */
-#define CFG_OR_TIMING_FLASH (OR_CSNT_SAM | OR_ACS_DIV2 | OR_BI | \
- OR_SCY_5_CLK | OR_EHTR)
+/*
+ * FLASH timing:
+ */
+#if defined(CONFIG_80MHz)
+/* 80 MHz CPU - 40 MHz bus: ACS = 00, TRLX = 0, CSNT = 1, SCY = 3, EHTR = 1 */
+#define CFG_OR_TIMING_FLASH (OR_ACS_DIV1 | 0 | OR_CSNT_SAM | \
+ OR_SCY_3_CLK | OR_EHTR | OR_BI)
+#elif defined(CONFIG_66MHz)
+/* 66 MHz CPU - 66 MHz bus: ACS = 00, TRLX = 1, CSNT = 1, SCY = 3, EHTR = 1 */
+#define CFG_OR_TIMING_FLASH (OR_ACS_DIV1 | OR_TRLX | OR_CSNT_SAM | \
+ OR_SCY_3_CLK | OR_EHTR | OR_BI)
+#else /* 50 MHz */
+/* 50 MHz CPU - 50 MHz bus: ACS = 00, TRLX = 1, CSNT = 1, SCY = 2, EHTR = 1 */
+#define CFG_OR_TIMING_FLASH (OR_ACS_DIV1 | OR_TRLX | OR_CSNT_SAM | \
+ OR_SCY_2_CLK | OR_EHTR | OR_BI)
+#endif /*CONFIG_??MHz */
#define CFG_OR0_REMAP (CFG_REMAP_OR_AM | CFG_OR_TIMING_FLASH)
#define CFG_OR0_PRELIM (CFG_PRELIM_OR_AM | CFG_OR_TIMING_FLASH)
/*
* Memory Periodic Timer Prescaler
+ *
+ * The Divider for PTA (refresh timer) configuration is based on an
+ * example SDRAM configuration (64 MBit, one bank). The adjustment to
+ * the number of chip selects (NCS) and the actually needed refresh
+ * rate is done by setting MPTPR.
+ *
+ * PTA is calculated from
+ * PTA = (gclk * Trefresh) / ((2 ^ (2 * DFBRG)) * PTP * NCS)
+ *
+ * gclk CPU clock (not bus clock!)
+ * Trefresh Refresh cycle * 4 (four word bursts used)
+ *
+ * 4096 Rows from SDRAM example configuration
+ * 1000 factor s -> ms
+ * 32 PTP (pre-divider from MPTPR) from SDRAM example configuration
+ * 4 Number of refresh cycles per period
+ * 64 Refresh cycle in ms per number of rows
+ * --------------------------------------------
+ * Divider = 4096 * 32 * 1000 / (4 * 64) = 512000
+ *
+ * 50 MHz => 50.000.000 / Divider = 98
+ * 66 Mhz => 66.000.000 / Divider = 129
+ * 80 Mhz => 80.000.000 / Divider = 156
*/
+#if defined(CONFIG_80MHz)
+#define CFG_MAMR_PTA 156
+#elif defined(CONFIG_66MHz)
+#define CFG_MAMR_PTA 129
+#else /* 50 MHz */
+#define CFG_MAMR_PTA 98
+#endif /*CONFIG_??MHz */
-/* periodic timer for refresh */
-#define CFG_MAMR_PTA 97 /* start with divider for 100 MHz */
-
-/* refresh rate 15.6 us (= 64 ms / 4K = 62.4 / quad bursts) for <= 128 MBit */
+/*
+ * For 16 MBit, refresh rates could be 31.3 us
+ * (= 64 ms / 2K = 125 / quad bursts).
+ * For a simpler initialization, 15.6 us is used instead.
+ *
+ * #define CFG_MPTPR_2BK_2K MPTPR_PTP_DIV32 for 2 banks
+ * #define CFG_MPTPR_1BK_2K MPTPR_PTP_DIV64 for 1 bank
+ */
#define CFG_MPTPR_2BK_4K MPTPR_PTP_DIV16 /* setting for 2 banks */
#define CFG_MPTPR_1BK_4K MPTPR_PTP_DIV32 /* setting for 1 bank */
/*
- * (C) Copyright 2000
+ * (C) Copyright 2000, 2001, 2002
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* See file CREDITS for list of people who contributed to this
#define CFG_REMAP_OR_AM 0x80000000 /* OR addr mask */
#define CFG_PRELIM_OR_AM 0xE0000000 /* OR addr mask */
-/* FLASH timing: ACS = 11, TRLX = 0, CSNT = 1, SCY = 5, EHTR = 1 */
-#define CFG_OR_TIMING_FLASH (OR_CSNT_SAM | OR_ACS_DIV2 | OR_BI | \
- OR_SCY_5_CLK | OR_EHTR)
+/*
+ * FLASH timing:
+ */
+#if defined(CONFIG_80MHz)
+/* 80 MHz CPU - 40 MHz bus: ACS = 00, TRLX = 0, CSNT = 1, SCY = 3, EHTR = 1 */
+#define CFG_OR_TIMING_FLASH (OR_ACS_DIV1 | 0 | OR_CSNT_SAM | \
+ OR_SCY_3_CLK | OR_EHTR | OR_BI)
+#elif defined(CONFIG_66MHz)
+/* 66 MHz CPU - 66 MHz bus: ACS = 00, TRLX = 1, CSNT = 1, SCY = 3, EHTR = 1 */
+#define CFG_OR_TIMING_FLASH (OR_ACS_DIV1 | OR_TRLX | OR_CSNT_SAM | \
+ OR_SCY_3_CLK | OR_EHTR | OR_BI)
+#else /* 50 MHz */
+/* 50 MHz CPU - 50 MHz bus: ACS = 00, TRLX = 1, CSNT = 1, SCY = 2, EHTR = 1 */
+#define CFG_OR_TIMING_FLASH (OR_ACS_DIV1 | OR_TRLX | OR_CSNT_SAM | \
+ OR_SCY_2_CLK | OR_EHTR | OR_BI)
+#endif /*CONFIG_??MHz */
#define CFG_OR0_REMAP (CFG_REMAP_OR_AM | CFG_OR_TIMING_FLASH)
#define CFG_OR0_PRELIM (CFG_PRELIM_OR_AM | CFG_OR_TIMING_FLASH)
/*
* Memory Periodic Timer Prescaler
+ *
+ * The Divider for PTA (refresh timer) configuration is based on an
+ * example SDRAM configuration (64 MBit, one bank). The adjustment to
+ * the number of chip selects (NCS) and the actually needed refresh
+ * rate is done by setting MPTPR.
+ *
+ * PTA is calculated from
+ * PTA = (gclk * Trefresh) / ((2 ^ (2 * DFBRG)) * PTP * NCS)
+ *
+ * gclk CPU clock (not bus clock!)
+ * Trefresh Refresh cycle * 4 (four word bursts used)
+ *
+ * 4096 Rows from SDRAM example configuration
+ * 1000 factor s -> ms
+ * 32 PTP (pre-divider from MPTPR) from SDRAM example configuration
+ * 4 Number of refresh cycles per period
+ * 64 Refresh cycle in ms per number of rows
+ * --------------------------------------------
+ * Divider = 4096 * 32 * 1000 / (4 * 64) = 512000
+ *
+ * 50 MHz => 50.000.000 / Divider = 98
+ * 66 Mhz => 66.000.000 / Divider = 129
+ * 80 Mhz => 80.000.000 / Divider = 156
*/
+#if defined(CONFIG_80MHz)
+#define CFG_MAMR_PTA 156
+#elif defined(CONFIG_66MHz)
+#define CFG_MAMR_PTA 129
+#else /* 50 MHz */
+#define CFG_MAMR_PTA 98
+#endif /*CONFIG_??MHz */
-/* periodic timer for refresh */
-#define CFG_MAMR_PTA 97 /* start with divider for 100 MHz */
-
-/* refresh rate 15.6 us (= 64 ms / 4K = 62.4 / quad bursts) for <= 128 MBit */
+/*
+ * For 16 MBit, refresh rates could be 31.3 us
+ * (= 64 ms / 2K = 125 / quad bursts).
+ * For a simpler initialization, 15.6 us is used instead.
+ *
+ * #define CFG_MPTPR_2BK_2K MPTPR_PTP_DIV32 for 2 banks
+ * #define CFG_MPTPR_1BK_2K MPTPR_PTP_DIV64 for 1 bank
+ */
#define CFG_MPTPR_2BK_4K MPTPR_PTP_DIV16 /* setting for 2 banks */
#define CFG_MPTPR_1BK_4K MPTPR_PTP_DIV32 /* setting for 1 bank */
/*
- * (C) Copyright 2000
+ * (C) Copyright 2000, 2001, 2002
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* See file CREDITS for list of people who contributed to this
#define CFG_REMAP_OR_AM 0x80000000 /* OR addr mask */
#define CFG_PRELIM_OR_AM 0xE0000000 /* OR addr mask */
-/* FLASH timing: ACS = 11, TRLX = 0, CSNT = 1, SCY = 5, EHTR = 1 */
-#define CFG_OR_TIMING_FLASH (OR_CSNT_SAM | OR_ACS_DIV2 | OR_BI | \
- OR_SCY_5_CLK | OR_EHTR)
+/*
+ * FLASH timing:
+ */
+#if defined(CONFIG_80MHz)
+/* 80 MHz CPU - 40 MHz bus: ACS = 00, TRLX = 0, CSNT = 1, SCY = 3, EHTR = 1 */
+#define CFG_OR_TIMING_FLASH (OR_ACS_DIV1 | 0 | OR_CSNT_SAM | \
+ OR_SCY_3_CLK | OR_EHTR | OR_BI)
+#elif defined(CONFIG_66MHz)
+/* 66 MHz CPU - 66 MHz bus: ACS = 00, TRLX = 1, CSNT = 1, SCY = 3, EHTR = 1 */
+#define CFG_OR_TIMING_FLASH (OR_ACS_DIV1 | OR_TRLX | OR_CSNT_SAM | \
+ OR_SCY_3_CLK | OR_EHTR | OR_BI)
+#else /* 50 MHz */
+/* 50 MHz CPU - 50 MHz bus: ACS = 00, TRLX = 1, CSNT = 1, SCY = 2, EHTR = 1 */
+#define CFG_OR_TIMING_FLASH (OR_ACS_DIV1 | OR_TRLX | OR_CSNT_SAM | \
+ OR_SCY_2_CLK | OR_EHTR | OR_BI)
+#endif /*CONFIG_??MHz */
#define CFG_OR0_REMAP (CFG_REMAP_OR_AM | CFG_OR_TIMING_FLASH)
#define CFG_OR0_PRELIM (CFG_PRELIM_OR_AM | CFG_OR_TIMING_FLASH)
/*
* Memory Periodic Timer Prescaler
+ *
+ * The Divider for PTA (refresh timer) configuration is based on an
+ * example SDRAM configuration (64 MBit, one bank). The adjustment to
+ * the number of chip selects (NCS) and the actually needed refresh
+ * rate is done by setting MPTPR.
+ *
+ * PTA is calculated from
+ * PTA = (gclk * Trefresh) / ((2 ^ (2 * DFBRG)) * PTP * NCS)
+ *
+ * gclk CPU clock (not bus clock!)
+ * Trefresh Refresh cycle * 4 (four word bursts used)
+ *
+ * 4096 Rows from SDRAM example configuration
+ * 1000 factor s -> ms
+ * 32 PTP (pre-divider from MPTPR) from SDRAM example configuration
+ * 4 Number of refresh cycles per period
+ * 64 Refresh cycle in ms per number of rows
+ * --------------------------------------------
+ * Divider = 4096 * 32 * 1000 / (4 * 64) = 512000
+ *
+ * 50 MHz => 50.000.000 / Divider = 98
+ * 66 Mhz => 66.000.000 / Divider = 129
+ * 80 Mhz => 80.000.000 / Divider = 156
*/
+#if defined(CONFIG_80MHz)
+#define CFG_MAMR_PTA 156
+#elif defined(CONFIG_66MHz)
+#define CFG_MAMR_PTA 129
+#else /* 50 MHz */
+#define CFG_MAMR_PTA 98
+#endif /*CONFIG_??MHz */
-/* periodic timer for refresh */
-#define CFG_MAMR_PTA 97 /* start with divider for 100 MHz */
-
-/* refresh rate 15.6 us (= 64 ms / 4K = 62.4 / quad bursts) for <= 128 MBit */
+/*
+ * For 16 MBit, refresh rates could be 31.3 us
+ * (= 64 ms / 2K = 125 / quad bursts).
+ * For a simpler initialization, 15.6 us is used instead.
+ *
+ * #define CFG_MPTPR_2BK_2K MPTPR_PTP_DIV32 for 2 banks
+ * #define CFG_MPTPR_1BK_2K MPTPR_PTP_DIV64 for 1 bank
+ */
#define CFG_MPTPR_2BK_4K MPTPR_PTP_DIV16 /* setting for 2 banks */
#define CFG_MPTPR_1BK_4K MPTPR_PTP_DIV32 /* setting for 1 bank */
#define SST_ID_xF800A 0x27812781 /* 39xF800A ID ( 8M = 512K x 16 ) */
#define SST_ID_xF160A 0x27822782 /* 39xF800A ID (16M = 1M x 16 ) */
+#define STM_ID_F040B 0xE2 /* M29F040B ID ( 4M = 512K x 8 ) */
+ /* 8 64K x 8 uniform sectors */
+
#define STM_ID_x800AB 0x005B005B /* M29W800AB ID (8M = 512K x 16 ) */
#define INTEL_ID_28F016S 0x66a066a0 /* 28F016S[VS] ID (16M = 512k x 16) */
#define FLASH_AM040 0x0001 /* AMD Am29F040B, Am29LV040B
* Bright Micro BM29F040
* Fujitsu MBM29F040A
+ * SGS Thomson M29F040B
* 8 64K x 8 uniform sectors
*/
#define FLASH_AM400T 0x0002 /* AMD AM29LV400 */
projects / users / rw / ppcboot.git / commitdiff