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Sansav2 Bootloader

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Adds read-only SD driver, largely copied from ata-sd-pp.c
Only tested on the embedded SD, on the Clip
First steps to build a Normal firmware

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19045 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Rafaël Carré 2008-11-09 06:17:21 +00:00
parent 308f21dc68
commit aef27e1f0c
9 changed files with 661 additions and 179 deletions
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6
firmware/target/arm/as3525/kernel-as3525.c
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@ -32,12 +32,9 @@ void INT_TIMER2(void)
void tick_start(unsigned int interval_in_ms)
{
#ifdef BOOTLOADER
(void) interval_in_ms;
#else
int phi = 0; /* prescaler bits */
int prescale = 1;
int cycles = 64000 * interval_in_ms; /* pclk is clocked at 64MHz */
int cycles = 1000 * interval_in_ms; /* pclk is clocked at 64MHz */
while(cycles > 0x10000)
{
@ -57,5 +54,4 @@ void tick_start(unsigned int interval_in_ms)
/* /!\ bit 4 (reserved) must not be modified
* periodic mode, interrupt enabled, 16 bits counter */
TIMER2_CONTROL = (TIMER2_CONTROL & (1<<4)) | 0xe0 | (phi<<2);
#endif
}