The CoreNet platform style of bringing secondary cores out of reset is a bit different that the PQ3 style. Mostly the registers that we use to setup boot translation, enable time bases, and boot release the cores have moved around.
Signed-off-by: Kumar Gala galak@kernel.crashing.org --- * Renamed pq3_mp_up to plat_mp_up to remove one #ifdef
cpu/mpc85xx/mp.c | 68 +++++++++++++++++++++++++++++++++++++++++++++++++++-- 1 files changed, 65 insertions(+), 3 deletions(-)
diff --git a/cpu/mpc85xx/mp.c b/cpu/mpc85xx/mp.c index fa65bed..b5c6020 100644 --- a/cpu/mpc85xx/mp.c +++ b/cpu/mpc85xx/mp.c @@ -26,6 +26,7 @@ #include <lmb.h> #include <asm/io.h> #include <asm/mmu.h> +#include <asm/fsl_law.h> #include "mp.h"
DECLARE_GLOBAL_DATA_PTR; @@ -135,7 +136,67 @@ ulong get_spin_addr(void) return addr; }
-static void pq3_mp_up(unsigned long bootpg) +#ifdef CONFIG_FSL_CORENET +static void plat_mp_up(unsigned long bootpg) +{ + u32 up, cpu_up_mask, whoami; + u32 *table = (u32 *)get_spin_addr(); + volatile ccsr_gur_t *gur; + volatile ccsr_local_t *ccm; + volatile ccsr_rcpm_t *rcpm; + volatile ccsr_pic_t *pic; + int timeout = 10; + u32 nr_cpus; + struct law_entry e; + + gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); + ccm = (void *)(CONFIG_SYS_FSL_CORENET_CCM_ADDR); + rcpm = (void *)(CONFIG_SYS_FSL_CORENET_RCPM_ADDR); + pic = (void *)(CONFIG_SYS_MPC85xx_PIC_ADDR); + + nr_cpus = ((in_be32(&pic->frr) >> 8) & 0xff) + 1; + + whoami = in_be32(&pic->whoami); + cpu_up_mask = 1 << whoami; + out_be32(&ccm->bstrl, bootpg); + + e = find_law(bootpg); + out_be32(&ccm->bstrar, LAW_EN | e.trgt_id << 20 | LAW_SIZE_4K); + + /* disable time base at the platform */ + out_be32(&rcpm->ctbenrl, cpu_up_mask); + + /* release the hounds */ + up = ((1 << nr_cpus) - 1); + out_be32(&gur->brrl, up); + + /* wait for everyone */ + while (timeout) { + int i; + for (i = 0; i < nr_cpus; i++) { + if (table[i * NUM_BOOT_ENTRY + BOOT_ENTRY_ADDR_LOWER]) + cpu_up_mask |= (1 << i); + }; + + if ((cpu_up_mask & up) == up) + break; + + udelay(100); + timeout--; + } + + if (timeout == 0) + printf("CPU up timeout. CPU up mask is %x should be %x\n", + cpu_up_mask, up); + + /* enable time base at the platform */ + out_be32(&rcpm->ctbenrl, 0); + mtspr(SPRN_TBWU, 0); + mtspr(SPRN_TBWL, 0); + out_be32(&rcpm->ctbenrl, (1 << nr_cpus) - 1); +} +#else +static void plat_mp_up(unsigned long bootpg) { u32 up, cpu_up_mask, whoami; u32 *table = (u32 *)get_spin_addr(); @@ -196,6 +257,7 @@ static void pq3_mp_up(unsigned long bootpg) devdisr &= ~(MPC85xx_DEVDISR_TB0 | MPC85xx_DEVDISR_TB1); out_be32(&gur->devdisr, devdisr); } +#endif
void cpu_mp_lmb_reserve(struct lmb *lmb) { @@ -217,7 +279,7 @@ void setup_mp(void) if (i != -1) { /* map reset page to bootpg so we can copy code there */ disable_tlb(i); - + set_tlb(1, 0xfffff000, bootpg, /* tlb, epn, rpn */ MAS3_SX|MAS3_SW|MAS3_SR, MAS2_M, /* perms, wimge */ 0, i, BOOKE_PAGESZ_4K, 1); /* ts, esel, tsize, iprot */ @@ -234,7 +296,7 @@ void setup_mp(void) MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I, /* perms, wimge */ 0, i, BOOKE_PAGESZ_4K, 1); /* ts, esel, tsize, iprot */
- pq3_mp_up(bootpg); + plat_mp_up(bootpg); } else { puts("WARNING: No reset page TLB. " "Skipping secondary core setup\n");