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| author | Hou Zhiqiang <B48286@freescale.com> | 2015-10-26 19:47:57 +0800 |
|---|---|---|
| committer | York Sun <yorksun@freescale.com> | 2015-10-29 10:34:02 -0700 |
| commit | 831c068fcfe7d32e48a8b9052a137701b41c7d86 (patch) | |
| tree | ca3620f5de92671c6d39acbce00b1af38e84e381 /arch/arm/cpu/armv8 | |
| parent | c7ca8b07fcdd9af739fa3b1bfabe05d0da36c556 (diff) | |
| download | u-boot-imx-831c068fcfe7d32e48a8b9052a137701b41c7d86.zip u-boot-imx-831c068fcfe7d32e48a8b9052a137701b41c7d86.tar.gz u-boot-imx-831c068fcfe7d32e48a8b9052a137701b41c7d86.tar.bz2 | |
armv8/ls1043a: Enable secondary cores
After the secondary cores enter U-Boot, use CONFIG_ARMV8_MULTIENTRY to
make secondary cores excute in spin loop.
Signed-off-by: Hou Zhiqiang <B48286@freescale.com>
Signed-off-by: Mingkai Hu <Mingkai.Hu@freescale.com>
Signed-off-by: Gong Qianyu <Qianyu.Gong@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
Diffstat (limited to 'arch/arm/cpu/armv8')
| -rw-r--r-- | arch/arm/cpu/armv8/fsl-layerscape/mp.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv8/fsl-layerscape/mp.c b/arch/arm/cpu/armv8/fsl-layerscape/mp.c index 1b13d32..0d600db 100644 --- a/arch/arm/cpu/armv8/fsl-layerscape/mp.c +++ b/arch/arm/cpu/armv8/fsl-layerscape/mp.c @@ -25,7 +25,11 @@ phys_addr_t determine_mp_bootpg(void) int fsl_layerscape_wake_seconday_cores(void) { struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR); +#ifdef CONFIG_FSL_LSCH3 struct ccsr_reset __iomem *rst = (void *)(CONFIG_SYS_FSL_RST_ADDR); +#elif defined(CONFIG_FSL_LSCH2) + struct ccsr_scfg __iomem *scfg = (void *)(CONFIG_SYS_FSL_SCFG_ADDR); +#endif u32 cores, cpu_up_mask = 1; int i, timeout = 10; u64 *table = get_spin_tbl_addr(); @@ -48,13 +52,23 @@ int fsl_layerscape_wake_seconday_cores(void) printf("Waking secondary cores to start from %lx\n", gd->relocaddr); +#ifdef CONFIG_FSL_LSCH3 gur_out32(&gur->bootlocptrh, (u32)(gd->relocaddr >> 32)); gur_out32(&gur->bootlocptrl, (u32)gd->relocaddr); gur_out32(&gur->scratchrw[6], 1); asm volatile("dsb st" : : : "memory"); rst->brrl = cores; asm volatile("dsb st" : : : "memory"); +#elif defined(CONFIG_FSL_LSCH2) + scfg_out32(&scfg->scratchrw[0], (u32)(gd->relocaddr >> 32)); + scfg_out32(&scfg->scratchrw[1], (u32)gd->relocaddr); + asm volatile("dsb st" : : : "memory"); + gur_out32(&gur->brrl, cores); + asm volatile("dsb st" : : : "memory"); + /* Bootup online cores */ + scfg_out32(&scfg->corebcr, cores); +#endif /* This is needed as a precautionary measure. * If some code before this has accidentally released the secondary * cores then the pre-bootloader code will trap them in a "wfe" unless |