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Atomic GPIO access

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7114 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Linus Nielsen Feltzing 2005-07-12 07:25:01 +00:00
parent d2ca7fc5de
commit 192a604cd4
4 changed files with 43 additions and 42 deletions
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24
firmware/drivers/ata.c
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@ -1092,10 +1092,10 @@ int ata_hard_reset(void)
or_b(0x02, &PADRH); /* negate _RESET */
sleep(1); /* > 2ms */
#elif CONFIG_CPU == MCF5249
GPIO_OUT &= ~0x00080000;
and_l(~0x00080000, &GPIO_OUT);
sleep(1); /* > 25us */
GPIO_OUT |= 0x00080000;
or_l(0x00080000, &GPIO_OUT);
sleep(1); /* > 25us */
#elif CONFIG_CPU == TCC730
@ -1234,12 +1234,12 @@ void ata_enable(bool on)
or_b(0x80, &PAIORL);
#elif CONFIG_CPU == MCF5249
if(on)
GPIO_OUT &= ~0x0040000;
and_l(~0x0040000, &GPIO_OUT);
else
GPIO_OUT |= 0x0040000;
or_l(0x0040000, &GPIO_OUT);
GPIO_ENABLE |= 0x00040000;
GPIO_FUNCTION |= 0x00040000;
or_l(0x00040000, &GPIO_ENABLE);
or_l(0x00040000, &GPIO_FUNCTION);
#elif CONFIG_CPU == TCC730
#endif
@ -1408,14 +1408,14 @@ int ata_init(void)
PACR2 &= 0xBFFF; /* GPIO function for PA7 (IDE enable) */
#elif CONFIG_CPU == MCF5249
/* Enable disk LED & ISD chip power control */
GPIO_OUT &= ~0x0000240;
GPIO_ENABLE |= 0x00000240;
GPIO_FUNCTION |= 0x00000200;
and_l(~0x0000240, &GPIO_OUT);
or_l(0x00000240, &GPIO_ENABLE);
or_l(0x00000200, &GPIO_FUNCTION);
/* ATA reset */
GPIO_OUT |= 0x00080000;
GPIO_ENABLE |= 0x00080000;
GPIO_FUNCTION |= 0x00080000;
or_l(0x00080000, &GPIO_OUT);
or_l(0x00080000, &GPIO_ENABLE);
or_l(0x00080000, &GPIO_FUNCTION);
/* FYI: The IDECONFIGx registers are set by set_cpu_frequency() */
#endif