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-rw-r--r--arch/arm/mach-omap2/sram34xx.S8
1 files changed, 7 insertions, 1 deletions
diff --git a/arch/arm/mach-omap2/sram34xx.S b/arch/arm/mach-omap2/sram34xx.S
index 3637274af5be..7f893a29d500 100644
--- a/arch/arm/mach-omap2/sram34xx.S
+++ b/arch/arm/mach-omap2/sram34xx.S
@@ -32,7 +32,7 @@
32#include <mach/io.h> 32#include <mach/io.h>
33 33
34#include "sdrc.h" 34#include "sdrc.h"
35#include "cm.h" 35#include "cm2xxx_3xxx.h"
36 36
37 .text 37 .text
38 38
@@ -104,6 +104,12 @@
104 * touching the SDRAM. Until that time, users who know that their use case 104 * touching the SDRAM. Until that time, users who know that their use case
105 * can satisfy the above requirement can enable the CONFIG_OMAP3_SDRC_AC_TIMING 105 * can satisfy the above requirement can enable the CONFIG_OMAP3_SDRC_AC_TIMING
106 * option. 106 * option.
107 *
108 * Richard Woodruff notes that any changes to this code must be carefully
109 * audited and tested to ensure that they don't cause a TLB miss while
110 * the SDRAM is inaccessible. Such a situation will crash the system
111 * since it will cause the ARM MMU to attempt to walk the page tables.
112 * These crashes may be intermittent.
107 */ 113 */
108ENTRY(omap3_sram_configure_core_dpll) 114ENTRY(omap3_sram_configure_core_dpll)
109 stmfd sp!, {r1-r12, lr} @ store regs to stack 115 stmfd sp!, {r1-r12, lr} @ store regs to stack