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fuze+: add more clocking code, add dma code, add ssp code, add stub usb code, update storage to SD + MMC, beginning of the driver

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30010 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Amaury Pouly 2011-06-17 22:30:58 +00:00
parent d4800fa385
commit 2cf3313382
15 changed files with 1069 additions and 4 deletions
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24
firmware/target/arm/imx233/clkctrl-imx233.c
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@ -37,6 +37,7 @@ void imx233_enable_clock(enum imx233_clock_t clk, bool enable)
switch(clk)
{
case CLK_PIX: REG = &HW_CLKCTRL_PIX; break;
case CLK_SSP: REG = &HW_CLKCTRL_SSP; break;
default: return;
}
@ -63,16 +64,39 @@ void imx233_set_clock_divisor(enum imx233_clock_t clk, int div)
__REG_SET(HW_CLKCTRL_PIX) = div;
while(HW_CLKCTRL_PIX & __CLK_BUSY);
break;
case CLK_SSP:
__REG_CLR(HW_CLKCTRL_SSP) = (1 << 9) - 1;
__REG_SET(HW_CLKCTRL_SSP) = div;
while(HW_CLKCTRL_SSP & __CLK_BUSY);
break;
default: return;
}
}
void imx233_set_fractional_divisor(enum imx233_clock_t clk, int fracdiv)
{
/* NOTE: HW_CLKCTRL_FRAC only support byte access ! */
volatile uint8_t *REG;
switch(clk)
{
case CLK_PIX: REG = &HW_CLKCTRL_FRAC_PIX; break;
case CLK_IO: REG = &HW_CLKCTRL_FRAC_IO; break;
default: return;
}
if(fracdiv != 0)
*REG = fracdiv;
else
*REG = HW_CLKCTRL_FRAC_XX__CLKGATEXX;;
}
void imx233_set_bypass_pll(enum imx233_clock_t clk, bool bypass)
{
uint32_t msk;
switch(clk)
{
case CLK_PIX: msk = HW_CLKCTRL_CLKSEQ__BYPASS_PIX; break;
case CLK_SSP: msk = HW_CLKCTRL_CLKSEQ__BYPASS_SSP; break;
default: return;
}