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authorwdenk <wdenk>2004-11-24 23:35:19 +0000
committerwdenk <wdenk>2004-11-24 23:35:19 +0000
commited54e6212518262d27abe5e6de3c608d5ebceafb (patch)
tree81a904f4473e7425023cfd2da4415b9f7fdfe10b
parentbb310d462bbe2be9be867f969e7a2b60ae90e785 (diff)
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* Fix udelay() on AT91RM9200 for delays < 1 ms.
* Enable long help on CMC PU2 board; fix reset issue; increase CPU speed from 179 to 207 MHz.
-rw-r--r--CHANGELOG6
-rw-r--r--board/cmc_pu2/memsetup.S4
-rw-r--r--cpu/at91rm9200/cpu.c14
-rw-r--r--cpu/pxa/interrupts.c11
-rw-r--r--include/configs/cmc_pu2.h10
5 files changed, 37 insertions, 8 deletions
diff --git a/CHANGELOG b/CHANGELOG
index 1338260..217fa4e 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -2,6 +2,12 @@
Changes since U-Boot 1.1.1:
======================================================================
+* Fix udelay() on AT91RM9200 for delays < 1 ms.
+
+* Enable long help on CMC PU2 board;
+ fix reset issue;
+ increase CPU speed from 179 to 207 MHz.
+
* Fix smc91111 ethernet driver for Xaeniax board (need to handle
unaligned tail part specially).
diff --git a/board/cmc_pu2/memsetup.S b/board/cmc_pu2/memsetup.S
index b0c8d4c..317f16d 100644
--- a/board/cmc_pu2/memsetup.S
+++ b/board/cmc_pu2/memsetup.S
@@ -57,11 +57,11 @@
/* clocks */
#define PLLAR 0xFFFFFC28
-#define PLLAR_VAL 0x20263E04 /* 179.712000 MHz for PCK */
+#define PLLAR_VAL 0x202CBE04 /* 207.360 MHz for PCK */
#define PLLBR 0xFFFFFC2C
#define PLLBR_VAL 0x10483E0E /* 48.054857 MHz (divider by 2 for USB) */
#define MCKR 0xFFFFFC30
-#define MCKR_VAL 0x00000202 /* PCK/3 = MCK Master Clock = 59.904000MHz from PLLA */
+#define MCKR_VAL 0x00000202 /* PCK/3 = MCK Master Clock = 69.120MHz from PLLA */
/* sdram */
#define PIOC_ASR 0xFFFFF870
diff --git a/cpu/at91rm9200/cpu.c b/cpu/at91rm9200/cpu.c
index a464f29..71463c9 100644
--- a/cpu/at91rm9200/cpu.c
+++ b/cpu/at91rm9200/cpu.c
@@ -134,12 +134,26 @@ int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
/*shutdown the console to avoid strange chars during reset */
us->US_CR = (AT91C_US_RSTRX | AT91C_US_RSTTX);
+#ifdef CONFIG_AT91RM9200DK
/* Clear PA19 to trigger the hard reset */
pio->PIO_CODR = 0x00080000;
pio->PIO_OER = 0x00080000;
pio->PIO_PER = 0x00080000;
+#endif
+#ifdef CONFIG_CMC_PU2
+/* this is the way Linux does it */
+#define AT91C_ST_RSTEN (0x1 << 16)
+#define AT91C_ST_EXTEN (0x1 << 17)
+#define AT91C_ST_WDRST (0x1 << 0)
+/* watchdog mode register */
+#define ST_WDMR *((unsigned long *)0xfffffd08)
+/* system clock control register */
+#define ST_CR *((unsigned long *)0xfffffd00)
+ ST_WDMR = AT91C_ST_RSTEN | AT91C_ST_EXTEN | 1 ;
+ ST_CR = AT91C_ST_WDRST;
/* Never reached */
#endif
+#endif
return 0;
}
diff --git a/cpu/pxa/interrupts.c b/cpu/pxa/interrupts.c
index 8aec0b9..fd02154 100644
--- a/cpu/pxa/interrupts.c
+++ b/cpu/pxa/interrupts.c
@@ -193,9 +193,14 @@ void udelay_masked (unsigned long usec)
{
ulong tmo;
- tmo = usec / 1000;
- tmo *= CFG_HZ;
- tmo /= 1000;
+ if (usec >= 1000) {
+ tmo = usec / 1000;
+ tmo *= CFG_HZ;
+ tmo /= 1000;
+ } else {
+ tmo = usec * CFG_HZ;
+ tmo /= (1000*1000);
+ }
reset_timer_masked ();
diff --git a/include/configs/cmc_pu2.h b/include/configs/cmc_pu2.h
index e144a67..ff935be 100644
--- a/include/configs/cmc_pu2.h
+++ b/include/configs/cmc_pu2.h
@@ -32,8 +32,8 @@
#define CONFIG_INIT_CRITICAL /* undef for developing */
/* ARM asynchronous clock */
-#define AT91C_MAIN_CLOCK 179712000 /* from 18.432 MHz crystal (18432000 / 4 * 39) */
-#define AT91C_MASTER_CLOCK 59904000 /* peripheral clock (AT91C_MASTER_CLOCK / 3) */
+#define AT91C_MAIN_CLOCK 207360000 /* from 18.432 MHz crystal (18432000 / 4 * 45) */
+#define AT91C_MASTER_CLOCK 69120000 /* peripheral clock (AT91C_MASTER_CLOCK / 3) */
#define AT91_SLOW_CLOCK 32768 /* slow clock */
@@ -60,7 +60,7 @@
#define CONFIG_BAUDRATE 9600
-#define CFG_AT91C_BRGR_DIVISOR 390 /* hardcode so no __divsi3 : AT91C_MASTER_CLOCK /(baudrate * 16) */
+#define CFG_AT91C_BRGR_DIVISOR 450 /* hardcode so no __divsi3 : AT91C_MASTER_CLOCK /(baudrate * 16) */
/*
* Hardware drivers
@@ -86,6 +86,8 @@
#define CFG_I2C_EEPROM_ADDR_LEN 1
#define CFG_I2C_EEPROM_ADDR_OVERFLOW
#endif
+/* still about 20 kB free with this defined */
+#define CFG_LONGHELP
#define CONFIG_BOOTDELAY 3
/* #define CONFIG_ENV_OVERWRITE 1 */
@@ -114,6 +116,8 @@
CFG_CMD_MISC | \
CFG_CMD_LOADS ))
#endif
+/* still about 20 kB free with this defined */
+#define CFG_LONGHELP
/* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */
#include <cmd_confdefs.h>