diff options
Diffstat (limited to 'arch/mips/mti-malta/malta-setup.c')
| -rw-r--r-- | arch/mips/mti-malta/malta-setup.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/arch/mips/mti-malta/malta-setup.c b/arch/mips/mti-malta/malta-setup.c index 33d5ff506..7e7364b05 100644 --- a/arch/mips/mti-malta/malta-setup.c +++ b/arch/mips/mti-malta/malta-setup.c @@ -39,6 +39,9 @@ #include <linux/console.h> #endif +#define ROCIT_CONFIG_GEN0 0x1f403000 +#define ROCIT_CONFIG_GEN0_PCI_IOCU BIT(7) + extern void malta_be_init(void); extern int malta_be_handler(struct pt_regs *regs, int is_fixup); @@ -107,6 +110,8 @@ static void __init fd_activate(void) static int __init plat_enable_iocoherency(void) { int supported = 0; + u32 cfg; + if (mips_revision_sconid == MIPS_REVISION_SCON_BONITO) { if (BONITO_PCICACHECTRL & BONITO_PCICACHECTRL_CPUCOH_PRES) { BONITO_PCICACHECTRL |= BONITO_PCICACHECTRL_CPUCOH_EN; @@ -129,7 +134,8 @@ static int __init plat_enable_iocoherency(void) } else if (mips_cm_numiocu() != 0) { /* Nothing special needs to be done to enable coherency */ pr_info("CMP IOCU detected\n"); - if ((*(unsigned int *)0xbf403000 & 0x81) != 0x81) { + cfg = __raw_readl((u32 *)CKSEG1ADDR(ROCIT_CONFIG_GEN0)); + if (!(cfg & ROCIT_CONFIG_GEN0_PCI_IOCU)) { pr_crit("IOCU OPERATION DISABLED BY SWITCH - DEFAULTING TO SW IO COHERENCY\n"); return 0; } @@ -261,7 +267,7 @@ void __init plat_mem_setup(void) fdt = malta_dt_shim(fdt); __dt_setup_arch(fdt); - if (config_enabled(CONFIG_EVA)) + if (IS_ENABLED(CONFIG_EVA)) /* EVA has already been configured in mach-malta/kernel-init.h */ pr_info("Enhanced Virtual Addressing (EVA) activated\n"); |