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* Modify XLB arbiter priorities on MPC5200 so all devices use same 

priority; configure critical interrupts to be handled like external
  interrupts
This commit is contained in:
wdenk 2003-09-16 17:06:05 +00:00
parent acf98e7f30
commit 4aeb251f90
4 changed files with 17 additions and 1 deletions
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4
CHANGELOG
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@ -2,6 +2,10 @@
Changes for U-Boot 1.0.0:
======================================================================
* Modify XLB arbiter priorities on MPC5200 so all devices use same
priority; configure critical interrupts to be handled like external
interrupts
* Make IPB clock on MGT5100/MPC5200 configurable in board config file;
go back to 66 MHz for stability

2
config.mk
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@ -102,7 +102,7 @@ RELFLAGS= $(PLATFORM_RELFLAGS)
DBGFLAGS= -g #-DDEBUG
OPTFLAGS= -Os #-fomit-frame-pointer
ifndef LDSCRIPT
#LDSCRIPT := board/$(BOARDDIR)/u-boot.lds.debug
#LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot.lds.debug
LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot.lds
endif
OBJCFLAGS += --gap-fill=0xff

5
cpu/mpc5xxx/cpu_init.c
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@ -161,6 +161,9 @@ void cpu_init_f (void)
addecr |= 0x02;
*(vu_long *)MPC5XXX_CDM_CFG = addecr;
#endif
/* Configure the XLB Arbiter */
*(vu_long *)MPC5XXX_XLBARB_MPRIEN = 0xff;
*(vu_long *)MPC5XXX_XLBARB_MPRIVAL = 0x11111111;
#endif
}
@ -177,6 +180,8 @@ int cpu_init_r (void)
#endif
*(vu_long *)MPC5XXX_ICTL_CRIT |= 0x0001ffff;
*(vu_long *)MPC5XXX_ICTL_EXT &= ~0x00000f00;
/* route critical ints to normal ints */
*(vu_long *)MPC5XXX_ICTL_EXT |= 0x00000001;
#if (CONFIG_COMMANDS & CFG_CMD_NET) && defined(CONFIG_MPC5XXX_FEC)
/* load FEC microcode */

7
include/mpc5xxx.h
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@ -151,6 +151,13 @@
#define MPC5XXX_CS_DEADCYCLE (MPC5XXX_LPB + 0x002c)
#endif
#if defined(CONFIG_MPC5200)
/* XLB Arbiter registers */
#define MPC5XXX_XLBARB_CFG (MPC5XXX_XLBARB + 0x40)
#define MPC5XXX_XLBARB_MPRIEN (MPC5XXX_XLBARB + 0x64)
#define MPC5XXX_XLBARB_MPRIVAL (MPC5XXX_XLBARB + 0x68)
#endif
/* GPIO registers */
#define MPC5XXX_GPS_PORT_CONFIG (MPC5XXX_GPIO + 0x0000)