diff options
Diffstat (limited to 'board/csb226/memsetup.S')
| -rw-r--r-- | board/csb226/memsetup.S | 32 |
1 files changed, 18 insertions, 14 deletions
diff --git a/board/csb226/memsetup.S b/board/csb226/memsetup.S index d34ead4..6567184 100644 --- a/board/csb226/memsetup.S +++ b/board/csb226/memsetup.S @@ -313,16 +313,22 @@ mem_init: /* documented in SDRAM data sheets. The address(es) used */ /* for this purpose must not be cacheable. */ - ldr r3, =CFG_DRAM_BASE - str r2, [r3] - str r2, [r3] - str r2, [r3] - str r2, [r3] - str r2, [r3] - str r2, [r3] - str r2, [r3] - str r2, [r3] + /* There should 9 writes, since the first write doesn't */ + /* trigger a refresh cycle on PXA250. See Intel PXA250 and */ + /* PXA210 Processors Specification Update, */ + /* Jan 2003, Errata #116, page 30. */ + + ldr r3, =CFG_DRAM_BASE + str r2, [r3] + str r2, [r3] + str r2, [r3] + str r2, [r3] + str r2, [r3] + str r2, [r3] + str r2, [r3] + str r2, [r3] + str r2, [r3] /* Step 4g: Write MDCNFG with enable bits asserted */ /* (MDCNFG:DEx set to 1). */ @@ -339,7 +345,6 @@ mem_init: /* We are finished with Intel's memory controller initialisation */ - /* ---------------------------------------------------------------- */ /* Disable (mask) all interrupts at interrupt controller */ /* ---------------------------------------------------------------- */ @@ -378,10 +383,11 @@ initclks: str r2, [r1] /* enable the 32Khz oscillator for RTC and PowerManager */ +/* ldr r1, =OSCC mov r2, #OSCC_OON str r2, [r1] - +*/ /* NOTE: spin here until OSCC.OOK get set, meaning the PLL */ /* has settled. */ 60: @@ -404,8 +410,7 @@ initclks: /* FIXME */ -#define NODEBUG -#ifdef NODEBUG +#ifndef DEBUG /*Disable software and data breakpoints */ mov r0,#0 mcr p15,0,r0,c14,c8,0 /* ibcr0 */ @@ -415,7 +420,6 @@ initclks: /*Enable all debug functionality */ mov r0,#0x80000000 mcr p14,0,r0,c10,c0,0 /* dcsr */ - #endif /* ---------------------------------------------------------------- */ |