From fbb9ecf7493fbd6b8c8af7d52e90c915459f7040 Mon Sep 17 00:00:00 2001 From: Timur Tabi Date: Fri, 5 Aug 2011 16:15:24 -0500 Subject: powerpc/mp: add support for discontiguous cores Some SOCs have discontiguously-numbered cores, and so we can't determine the valid core numbers via the FRR register any more. We define CPU_TYPE_ENTRY_MASK to specify a discontiguous core mask, and helper functions to process the mask and enumerate over the set of valid cores. Signed-off-by: Timur Tabi Signed-off-by: Kumar Gala --- include/common.h | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'include/common.h') diff --git a/include/common.h b/include/common.h index d244bd40b5b..05e2f728e73 100644 --- a/include/common.h +++ b/include/common.h @@ -485,7 +485,22 @@ void ddr_enable_ecc(unsigned int dram_size); #endif /* $(CPU)/cpu.c */ +static inline int cpumask_next(int cpu, unsigned int mask) +{ + for (cpu++; !((1 << cpu) & mask); cpu++) + ; + + return cpu; +} + +#define for_each_cpu(iter, cpu, num_cpus, mask) \ + for (iter = 0, cpu = cpumask_next(-1, mask); \ + iter < num_cpus; \ + iter++, cpu = cpumask_next(cpu, mask)) \ + int cpu_numcores (void); +u32 cpu_mask (void); +int is_core_valid (unsigned int); int probecpu (void); int checkcpu (void); int checkicache (void); -- cgit v1.2.3 From d29d17d7badcf90a31e5d6d1d9a82838ea039a42 Mon Sep 17 00:00:00 2001 From: York Sun Date: Fri, 26 Aug 2011 11:32:44 -0700 Subject: powerpc/mpc83xx: Migrate from spd_sdram to unified DDR driver Unified DDR driver is maintained for better performance, robustness and bug fixes. Upgrading to use unified DDR driver for MPC83xx takes advantage of overall improvement. It requires changes for board files to customize platform-dependent parameters. To utilize the unified DDR driver, a board needs to define CONFIG_FSL_DDRx in the header file. No more boards will be accepted without such definition. Note: the workaround for erratum DDR6 for the very old MPC834x Rev 1.0/1.1 and MPC8360 Rev 1.1/1.2 parts is not migrated to unified driver. Signed-off-by: Kim Phillips Signed-off-by: York Sun Signed-off-by: Kumar Gala --- include/common.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'include/common.h') diff --git a/include/common.h b/include/common.h index 05e2f728e73..bcc00e82b78 100644 --- a/include/common.h +++ b/include/common.h @@ -580,10 +580,12 @@ ulong get_PERCLK3(void); ulong get_bus_freq (ulong); int get_serial_clock(void); +#if defined(CONFIG_MPC83xx) || defined(CONFIG_MPC85xx) +ulong get_ddr_freq(ulong); +#endif #if defined(CONFIG_MPC85xx) typedef MPC85xx_SYS_INFO sys_info_t; void get_sys_info ( sys_info_t * ); -ulong get_ddr_freq (ulong); #endif #if defined(CONFIG_MPC86xx) typedef MPC86xx_SYS_INFO sys_info_t; -- cgit v1.2.3