@@ -129,8 +129,11 @@ ENTRY(omap3_sram_configure_core_dpll)
ldr r4, [sp, #80]
str r4, omap_sdrc_mr_1_val
skip_cs1_params:
+ mrc p15, 0, r8, c1, c0, 0 @ read ctrl register
+ bic r10, r8, #0x800 @ clear Z-bit, disable branch prediction
+ mcr p15, 0, r10, c1, c0, 0 @ write ctrl register
dsb @ flush buffered writes to interconnect
-
+ isb @ prevent speculative exec past here
cmp r3, #1 @ if increasing SDRC clk rate,
bleq configure_sdrc @ program the SDRC regs early (for RFR)
cmp r1, #SDRC_UNLOCK_DLL @ set the intended DLL state
@@ -148,6 +151,7 @@ skip_cs1_params:
beq return_to_sdram @ return to SDRAM code, otherwise,
bl configure_sdrc @ reprogram SDRC regs now
return_to_sdram:
+ mcr p15, 0, r8, c1, c0, 0 @ restore ctrl register
isb @ prevent speculative exec past here
mov r0, #0 @ return value
ldmfd sp!, {r1-r12, pc} @ restore regs and return