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as3525v2: extend a bit the delay after switching pclk/fclk

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fix r25571 : Clipv2 would boot to a black screen

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25592 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Rafaël Carré 2010-04-11 16:22:56 +00:00
parent beca69b3a6
commit 07ec3c9d69
1 changed files with 4 additions and 4 deletions
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8
firmware/target/arm/as3525/system-as3525.c
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@ -441,13 +441,13 @@ void set_cpu_frequency(long frequency)
/* Change PCLK while FCLK is low, so it doesn't go too high */ /* Change PCLK while FCLK is low, so it doesn't go too high */
CGU_PERI = (CGU_PERI & ~(0x1F << 2)) | (AS3525_PCLK_DIV0 << 2); CGU_PERI = (CGU_PERI & ~(0x1F << 2)) | (AS3525_PCLK_DIV0 << 2);
delay = 40; while(delay--) ; delay = 40; while(delay--) asm("nop");
CGU_PROC = ((AS3525_FCLK_POSTDIV << 4) | CGU_PROC = ((AS3525_FCLK_POSTDIV << 4) |
(AS3525_FCLK_PREDIV << 2) | (AS3525_FCLK_PREDIV << 2) |
AS3525_FCLK_SEL); AS3525_FCLK_SEL);
delay = 40; while(delay--) ; delay = 40; while(delay--) asm("nop");
} }
else else
@ -458,11 +458,11 @@ void set_cpu_frequency(long frequency)
(AS3525_FCLK_PREDIV << 2) | (AS3525_FCLK_PREDIV << 2) |
AS3525_FCLK_SEL); AS3525_FCLK_SEL);
delay = 40; while(delay--) ; delay = 40; while(delay--) asm("nop");
/* Change PCLK after FCLK is low, so it doesn't go too high */ /* Change PCLK after FCLK is low, so it doesn't go too high */
CGU_PERI = (CGU_PERI & ~(0x1F << 2)) | (AS3525_PCLK_DIV0_UNBOOSTED << 2); CGU_PERI = (CGU_PERI & ~(0x1F << 2)) | (AS3525_PCLK_DIV0_UNBOOSTED << 2);
delay = 40; while(delay--) ; delay = 40; while(delay--) asm("nop");
} }
cpu_frequency = frequency; cpu_frequency = frequency;