diff options
Diffstat (limited to 'board/synopsys/axs101')
-rw-r--r-- | board/synopsys/axs101/axs101.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/board/synopsys/axs101/axs101.c b/board/synopsys/axs101/axs101.c index 8c16410..d4280f7 100644 --- a/board/synopsys/axs101/axs101.c +++ b/board/synopsys/axs101/axs101.c @@ -56,3 +56,33 @@ int board_early_init_f(void) return 0; } + +#ifdef CONFIG_ISA_ARCV2 +#define RESET_VECTOR_ADDR 0x0 + +void smp_set_core_boot_addr(unsigned long addr, int corenr) +{ + /* All cores have reset vector pointing to 0 */ + writel(addr, (void __iomem *)RESET_VECTOR_ADDR); + + /* Make sure other cores see written value in memory */ + flush_dcache_range(RESET_VECTOR_ADDR, RESET_VECTOR_ADDR + sizeof(int)); +} + +void smp_kick_all_cpus(void) +{ +/* CPU start CREG */ +#define AXC003_CREG_CPU_START 0xF0001400 + +/* Bits positions in CPU start CREG */ +#define BITS_START 0 +#define BITS_POLARITY 8 +#define BITS_CORE_SEL 9 +#define BITS_MULTICORE 12 + +#define CMD (1 << BITS_MULTICORE) | (1 << BITS_CORE_SEL) | \ + (1 << BITS_POLARITY) | (1 << BITS_START) + + writel(CMD, (void __iomem *)AXC003_CREG_CPU_START); +} +#endif |