GitHub-Mirror/u-boot
2
0
Fork 0
mirror of https://github.com/Fishwaldo/u-boot.git synced 2025-03-29 10:31:30 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

Added config options CFG_MONAHANS_RUN_MODE_OSC_RATIO and

Browse source 
CFG_MONAHANS_TURBO_RUN_MODE_RATIO for configuring the Monahans core
frequency.
This commit is contained in:
Markus Klotzbuecher 2006-03-24 14:35:25 +01:00 • committed by Markus Klotzbcher
parent ba70d6a417
commit 40b0bafbb2
2 changed files with 22 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

17
cpu/pxa/start.S
View file

@ -190,6 +190,14 @@ OSTIMER_BASE: .word 0x40a00000
#define OIER 0x1C
/* Clock Manager Registers */
#ifdef CONFIG_CPU_MONAHANS
# ifndef CFG_MONAHANS_RUN_MODE_OSC_RATIO
# error "You have to define CFG_MONAHANS_RUN_MODE_OSC_RATIO!!"
# endif
# ifndef CFG_MONAHANS_TURBO_RUN_MODE_RATIO
# define CFG_MONAHANS_TURBO_RUN_MODE_RATIO 0x1
# endif
#else /* ! CONFIG_CPU_MONAHANS */
#ifdef CFG_CPUSPEED
CC_BASE: .word 0x41300000
#define CCCR 0x00
@ -197,6 +205,7 @@ cpuspeed: .word CFG_CPUSPEED
#else
#error "You have to define CFG_CPUSPEED!!"
#endif
#endif /* CONFIG_CPU_MONAHANS */
/* takes care the CP15 update has taken place */
.macro CPWAIT reg
@ -233,9 +242,13 @@ cpu_init_crit:
str r2, [r1]
#endif
#ifndef CONFIG_CPU_MONAHANS
/* set clock speed */
#ifdef CONFIG_CPU_MONAHANS
ldr r0, =ACCR
ldr r1, =(((CFG_MONAHANS_TURBO_RUN_MODE_RATIO<<8) & ACCR_XN_MASK) | (CFG_MONAHANS_RUN_MODE_OSC_RATIO & ACCR_XL_MASK))
str r1, [r0]
#else /* ! CONFIG_CPU_MONAHANS */
#ifdef CFG_CPUSPEED
/* set clock speed tbd@mk: required for monahans? */
ldr r0, CC_BASE
ldr r1, cpuspeed
str r1, [r0, #CCCR]

8
include/configs/delta.h
View file

@ -132,7 +132,13 @@
#define CFG_LOAD_ADDR (CFG_DRAM_BASE + 0x8000) /* default load address */
#define CFG_HZ 3250000 /* incrementer freq: 3.25 MHz */
#define CFG_CPUSPEED 0x161 /* set core clock to 400/200/100 MHz */
/* Monahans Core Frequency =
*
*/
#define CFG_MONAHANS_RUN_MODE_OSC_RATIO 16 /* valid values: 8, 16, 24, 31 */
#define CFG_MONAHANS_TURBO_RUN_MODE_RATIO 1 /* valid values: 1, 2 */
/* valid baudrates */
#define CFG_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200 }