#define CONFIG_BOOTP_MASK CONFIG_BOOTP_ALL
-#define CONFIG_COMMANDS ( CONFIG_CMD_DFL & ~( \
- CFG_CMD_CONSOLE | \
- CFG_CMD_BDI | \
- CFG_CMD_LOADS | \
- CFG_CMD_LOADB | \
- CFG_CMD_CACHE ) )
-/* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */
-#include <cmd_confdefs.h>
+/*
+ * Command line configuration.
+ */
+#include <config_cmd_default.h>
+
+#undef CONFIG_CMD_CONSOLE
+#undef CONFIG_CMD_BDI
+#undef CONFIG_CMD_LOADS
+#undef CONFIG_CMD_LOADB
+#undef CONFIG_CMD_CACHE
+
/*
* Miscellaneous configurable options
*/
#define CFG_LONGHELP /* undef to save memory */
#define CFG_PROMPT "=> " /* Monitor Command Prompt */
-#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
+#if defined(CONFIG_CMD_KGDB)
#define CFG_CBSIZE 1024 /* Console I/O Buffer Size */
#else
#define CFG_CBSIZE 256 /* Console I/O Buffer Size */
*/
#define CFG_SDRAM_BASE 0x00000000
#define CFG_FLASH_BASE 0x40000000
-#ifdef DEBUG
#define CFG_MONITOR_LEN (256 << 10) /* Reserve 256 kB for Monitor */
-#else
-#define CFG_MONITOR_LEN (128 << 10) /* Reserve 128 kB for Monitor */
-#endif
#define CFG_MONITOR_BASE CFG_FLASH_BASE
#define CFG_MALLOC_LEN (128 << 10) /* Reserve 128 kB for malloc() */
* the maximum mapped by the Linux kernel during initialization.
*/
#define CFG_BOOTMAPSZ (8 << 20) /* Initial Memory map for Linux */
+
/*-----------------------------------------------------------------------
* FLASH organization
*/
#define CFG_MAX_FLASH_BANKS 2 /* max number of memory banks */
-#define CFG_MAX_FLASH_SECT 67 /* max number of sectors on one chip */
+#define CFG_MAX_FLASH_SECT 71 /* max number of sectors on one chip */
#define CFG_FLASH_ERASE_TOUT 120000 /* Timeout for Flash Erase (in ms) */
#define CFG_FLASH_WRITE_TOUT 500 /* Timeout for Flash Write (in ms) */
#define CFG_ENV_OFFSET 0x8000 /* Offset of Environment Sector */
#define CFG_ENV_SIZE 0x4000 /* Total Size of Environment Sector */
+/* Address and size of Redundant Environment Sector */
+#define CFG_ENV_OFFSET_REDUND (CFG_ENV_OFFSET+CFG_ENV_SIZE)
+#define CFG_ENV_SIZE_REDUND (CFG_ENV_SIZE)
+
/*-----------------------------------------------------------------------
* Hardware Information Block
*/
* Cache Configuration
*/
#define CFG_CACHELINE_SIZE 16 /* For all MPC8xx CPUs */
-#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
+#if defined(CONFIG_CMD_KGDB)
#define CFG_CACHELINE_SHIFT 4 /* log base 2 of the above value */
#endif
*-----------------------------------------------------------------------
*
*/
-/*#define CFG_DER 0x2002000F*/
#define CFG_DER 0
/*
#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:
+ */
+#define CFG_OR_TIMING_FLASH (OR_ACS_DIV1 | OR_TRLX | OR_CSNT_SAM | \
+ OR_SCY_3_CLK | OR_EHTR | OR_BI)
#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
*/
-/* periodic timer for refresh */
-#define CFG_MAMR_PTA 97 /* start with divider for 100 MHz */
+#define CFG_PTA_PER_CLK ((4096 * 32 * 1000) / (4 * 64))
+#define CFG_MAMR_PTA 98
-/* 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 */
projects / platform / kernel / u-boot.git / blobdiff