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i.MX31/Gigabeat S: Implement frequency and voltage scaling-- 1.6V for 528MHz, and 1.35V for 264MHz and 132MHz. Keep DPTC overdrive ( > 400MHz) voltage scaling off for now because of uncertainties. Simplify the (working) mess later.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25699 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Michael Sevakis 2010-04-23 15:32:50 +00:00
parent 6cee7579db
commit 11cca264ff
20 changed files with 1311 additions and 125 deletions
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7
firmware/target/arm/imx31/gigabeat-s/kernel-gigabeat-s.c
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@ -70,10 +70,11 @@ void kernel_device_init(void)
sdma_init();
spi_init();
mc13783_init();
dvfs_dptc_start();
dvfs_dptc_init();
dvfs_wfi_monitor(true); /* Monitor the WFI signal */
dvfs_dptc_start(); /* Should be ok to start even so early */
}
#ifdef BOOTLOADER
void tick_stop(void)
{
avic_disable_int(INT_EPIT1); /* Disable insterrupt */
@ -81,4 +82,4 @@ void tick_stop(void)
EPITSR1 = EPITSR_OCIF; /* Clear pending */
ccm_module_clock_gating(CG_EPIT1, CGM_OFF); /* Turn off module clock */
}
#endif