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| author | Kumar Gala <galak@kernel.crashing.org> | 2009-09-17 01:44:00 -0500 |
|---|---|---|
| committer | Kumar Gala <galak@kernel.crashing.org> | 2009-09-24 12:05:28 -0500 |
| commit | a880cf3e0e1c220d780eccd0b101170c4499485d (patch) | |
| tree | 5a1d6288e8127ce2de572afff2e8a42e0a4d06a3 | |
| parent | 418ec8584343f04048e2cc7ee96b6b29be54ad97 (diff) | |
| download | u-boot-imx-a880cf3e0e1c220d780eccd0b101170c4499485d.zip u-boot-imx-a880cf3e0e1c220d780eccd0b101170c4499485d.tar.gz u-boot-imx-a880cf3e0e1c220d780eccd0b101170c4499485d.tar.bz2 | |
ppc/p4080: CoreNet platfrom style CCSRBAR setting
On CoreNet based platforms the CCSRBAR address is split between an high &
low register and we no longer shift the address.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Scott Wood <scottwood@freescale.com>
| -rw-r--r-- | cpu/mpc85xx/cpu_init_early.c | 72 |
1 files changed, 54 insertions, 18 deletions
diff --git a/cpu/mpc85xx/cpu_init_early.c b/cpu/mpc85xx/cpu_init_early.c index 7886f86..32aa94b 100644 --- a/cpu/mpc85xx/cpu_init_early.c +++ b/cpu/mpc85xx/cpu_init_early.c @@ -24,6 +24,51 @@ DECLARE_GLOBAL_DATA_PTR; +#if (CONFIG_SYS_CCSRBAR_DEFAULT != CONFIG_SYS_CCSRBAR_PHYS) +#ifdef CONFIG_FSL_CORENET +static void setup_ccsrbar(void) +{ + u32 temp; + volatile u32 *ccsr_virt = (volatile u32 *)(CONFIG_SYS_CCSRBAR + 0x1000); + volatile ccsr_local_t *ccm; + + /* + * We can't call set_law() because we haven't moved + * CCSR yet. + */ + ccm = (void *)ccsr_virt; + + out_be32(&ccm->law[0].lawbarh, + (u64)CONFIG_SYS_CCSRBAR_PHYS >> 32); + out_be32(&ccm->law[0].lawbarl, (u32)CONFIG_SYS_CCSRBAR_PHYS); + out_be32(&ccm->law[0].lawar, + LAW_EN | (0x1e << 20) | LAW_SIZE_4K); + + in_be32((u32 *)(ccsr_virt + 0)); + in_be32((u32 *)(ccsr_virt + 1)); + isync(); + + ccm = (void *)CONFIG_SYS_CCSRBAR; + /* Now use the temporary LAW to move CCSR */ + out_be32(&ccm->ccsrbarh, (u64)CONFIG_SYS_CCSRBAR_PHYS >> 32); + out_be32(&ccm->ccsrbarl, (u32)CONFIG_SYS_CCSRBAR_PHYS); + out_be32(&ccm->ccsrar, CCSRAR_C); + temp = in_be32(&ccm->ccsrar); + disable_law(0); +} +#else +static void setup_ccsrbar(void) +{ + u32 temp; + volatile u32 *ccsr_virt = (volatile u32 *)(CONFIG_SYS_CCSRBAR + 0x1000); + + temp = in_be32(ccsr_virt); + out_be32(ccsr_virt, CONFIG_SYS_CCSRBAR_PHYS >> 12); + temp = in_be32((volatile u32 *)CONFIG_SYS_CCSRBAR); +} +#endif +#endif + /* We run cpu_init_early_f in AS = 1 */ void cpu_init_early_f(void) { @@ -50,24 +95,15 @@ void cpu_init_early_f(void) /* set up CCSR if we want it moved */ #if (CONFIG_SYS_CCSRBAR_DEFAULT != CONFIG_SYS_CCSRBAR_PHYS) - { - u32 temp; - volatile u32 *ccsr_virt = - (volatile u32 *)(CONFIG_SYS_CCSRBAR + 0x1000); - - mas0 = MAS0_TLBSEL(0) | MAS0_ESEL(1); - /* mas1 is the same as above */ - mas2 = FSL_BOOKE_MAS2((u32)ccsr_virt, MAS2_I|MAS2_G); - mas3 = FSL_BOOKE_MAS3(CONFIG_SYS_CCSRBAR_DEFAULT, 0, - MAS3_SW|MAS3_SR); - mas7 = FSL_BOOKE_MAS7(CONFIG_SYS_CCSRBAR_DEFAULT); - - write_tlb(mas0, mas1, mas2, mas3, mas7); - - temp = in_be32(ccsr_virt); - out_be32(ccsr_virt, CONFIG_SYS_CCSRBAR_PHYS >> 12); - temp = in_be32((volatile u32 *)CONFIG_SYS_CCSRBAR); - } + mas0 = MAS0_TLBSEL(0) | MAS0_ESEL(1); + /* mas1 is the same as above */ + mas2 = FSL_BOOKE_MAS2(CONFIG_SYS_CCSRBAR + 0x1000, MAS2_I|MAS2_G); + mas3 = FSL_BOOKE_MAS3(CONFIG_SYS_CCSRBAR_DEFAULT, 0, MAS3_SW|MAS3_SR); + mas7 = FSL_BOOKE_MAS7(CONFIG_SYS_CCSRBAR_DEFAULT); + + write_tlb(mas0, mas1, mas2, mas3, mas7); + + setup_ccsrbar(); #endif init_laws(); |