From df33f6b4d6d63693dd9200808b242de1b86cb8e8 Mon Sep 17 00:00:00 2001 From: Timur Tabi Date: Tue, 3 Jul 2007 13:04:34 -0500 Subject: Update SCCR programming in cpu_init_f() to support all 83xx processors Update the cpu_init_f() function in cpu/mpc83xx/cpu_init.c to program the bitfields for all 83xx processors. The code to update some bitfields was compiled only on some processors. Now, the bitfields are programmed as long as the corresponding CFG_SCCR option is defined in the board header file. This means that the board header file should not define any CFG_SCCR macros for bitfields that don't exist on that processor, otherwise the SCCR will be programmed incorrectly. Signed-off-by: Timur Tabi Signed-off-by: Kim Phillips --- cpu/mpc83xx/cpu_init.c | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) (limited to 'cpu/mpc83xx/cpu_init.c') diff --git a/cpu/mpc83xx/cpu_init.c b/cpu/mpc83xx/cpu_init.c index 3ac91619c..53a5f5947 100644 --- a/cpu/mpc83xx/cpu_init.c +++ b/cpu/mpc83xx/cpu_init.c @@ -83,20 +83,30 @@ void cpu_init_f (volatile immap_t * im) im->sysconf.spcr = (im->sysconf.spcr & ~SPCR_TSEC2EP) | (CFG_SPCR_TSEC2EP << SPCR_TSEC2EP_SHIFT); #endif -#ifdef CONFIG_MPC834X #ifdef CFG_SCCR_TSEC1CM /* TSEC1 clock mode */ im->clk.sccr = (im->clk.sccr & ~SCCR_TSEC1CM) | (CFG_SCCR_TSEC1CM << SCCR_TSEC1CM_SHIFT); #endif + #ifdef CFG_SCCR_TSEC2CM /* TSEC2 & I2C1 clock mode */ im->clk.sccr = (im->clk.sccr & ~SCCR_TSEC2CM) | (CFG_SCCR_TSEC2CM << SCCR_TSEC2CM_SHIFT); #endif + +#ifdef CFG_SCCR_TSEC1ON + /* TSEC1 clock switch */ + im->clk.sccr = (im->clk.sccr & ~SCCR_TSEC1ON) | (CFG_SCCR_TSEC1ON << SCCR_TSEC1ON_SHIFT); +#endif + +#ifdef CFG_SCCR_TSEC2ON + /* TSEC2 clock switch */ + im->clk.sccr = (im->clk.sccr & ~SCCR_TSEC2ON) | (CFG_SCCR_TSEC2ON << SCCR_TSEC2ON_SHIFT); +#endif + #ifdef CFG_SCCR_USBMPHCM /* USB MPH clock mode */ im->clk.sccr = (im->clk.sccr & ~SCCR_USBMPHCM) | (CFG_SCCR_USBMPHCM << SCCR_USBMPHCM_SHIFT); #endif -#endif /* CONFIG_MPC834X */ #ifdef CFG_SCCR_PCICM /* PCI & DMA clock mode */ -- cgit v1.2.3-70-g09d2 From 9be39a67c9f8fef7107f5df09d673005f04d0963 Mon Sep 17 00:00:00 2001 From: Dave Liu Date: Mon, 25 Jun 2007 10:41:56 +0800 Subject: mpc83xx: Add support for the display of reset status 83xx processor family has many reset sources, such as power on reset, software hard reset, software soft reset, JTAG, bus monitor, software watchdog, check stop reset, external hard reset, external software reset. sometimes, to figure out the fault of system, we need to know the cause of reset early before the prompt of u-boot present. Signed-off-by: Dave Liu Signed-off-by: Kim Phillips --- cpu/mpc83xx/cpu_init.c | 36 ++++++++++++++++++++++++++++++++++++ include/common.h | 2 ++ lib_ppc/board.c | 6 ++++-- 3 files changed, 42 insertions(+), 2 deletions(-) (limited to 'cpu/mpc83xx/cpu_init.c') diff --git a/cpu/mpc83xx/cpu_init.c b/cpu/mpc83xx/cpu_init.c index 53a5f5947..722497966 100644 --- a/cpu/mpc83xx/cpu_init.c +++ b/cpu/mpc83xx/cpu_init.c @@ -257,3 +257,39 @@ int cpu_init_r (void) #endif return 0; } + +/* + * Figure out the cause of the reset + */ +int prt_83xx_rsr(void) +{ + static struct { + ulong mask; + char *desc; + } bits[] = { + { + RSR_SWSR, "Software Soft"}, { + RSR_SWHR, "Software Hard"}, { + RSR_JSRS, "JTAG Soft"}, { + RSR_CSHR, "Check Stop"}, { + RSR_SWRS, "Software Watchdog"}, { + RSR_BMRS, "Bus Monitor"}, { + RSR_SRS, "External/Internal Soft"}, { + RSR_HRS, "External/Internal Hard"} + }; + static int n = sizeof bits / sizeof bits[0]; + ulong rsr = gd->reset_status; + int i; + char *sep; + + puts("Reset Status:"); + + sep = " "; + for (i = 0; i < n; i++) + if (rsr & bits[i].mask) { + printf("%s%s", sep, bits[i].desc); + sep = ", "; + } + puts("\n\n"); + return 0; +} diff --git a/include/common.h b/include/common.h index ac29d3aac..a822d28d3 100644 --- a/include/common.h +++ b/include/common.h @@ -526,6 +526,8 @@ void cpu_init_f (void); int cpu_init_r (void); #if defined(CONFIG_8260) int prt_8260_rsr (void); +#elif defined(CONFIG_MPC83XX) +int prt_83xx_rsr (void); #endif /* $(CPU)/interrupts.c */ diff --git a/lib_ppc/board.c b/lib_ppc/board.c index 325f5c219..c87d46c3d 100644 --- a/lib_ppc/board.c +++ b/lib_ppc/board.c @@ -309,7 +309,9 @@ init_fnc_t *init_sequence[] = { prt_8260_rsr, prt_8260_clks, #endif /* CONFIG_8260 */ - +#if defined(CONFIG_MPC83XX) + prt_83xx_rsr, +#endif checkcpu, #if defined(CONFIG_MPC5xxx) prt_mpc5xxx_clks, @@ -376,7 +378,7 @@ void board_init_f (ulong bootflag) /* compiler optimization barrier needed for GCC >= 3.4 */ __asm__ __volatile__("": : :"memory"); -#if !defined(CONFIG_CPM2) +#if !defined(CONFIG_CPM2) && !defined(CONFIG_MPC83XX) /* Clear initial global data */ memset ((void *) gd, 0, sizeof (gd_t)); #endif -- cgit v1.2.3-70-g09d2