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mx25: Define more standard clocks

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Define AHB, IPG and CSPI clocks.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Cc: Stefano Babic <sbabic@denx.de>
This commit is contained in:
Benoît Thébaudeau 2012-09-27 10:27:28 +00:00 committed by Tom Rini
parent fac7c817c3
commit c3b5189031
2 changed files with 15 additions and 0 deletions
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10
arch/arm/cpu/arm926ejs/mx25/generic.c
View File

@ -101,6 +101,11 @@ ulong imx_get_ahbclk(void)
return fref / div; return fref / div;
} }
static ulong imx_get_ipgclk(void)
{
return imx_get_ahbclk() / 2;
}
ulong imx_get_perclk(int clk) ulong imx_get_perclk(int clk)
{ {
struct ccm_regs *ccm = (struct ccm_regs *)IMX_CCM_BASE; struct ccm_regs *ccm = (struct ccm_regs *)IMX_CCM_BASE;
@ -120,6 +125,11 @@ unsigned int mxc_get_clock(enum mxc_clock clk)
switch (clk) { switch (clk) {
case MXC_ARM_CLK: case MXC_ARM_CLK:
return imx_get_armclk(); return imx_get_armclk();
case MXC_AHB_CLK:
return imx_get_ahbclk();
case MXC_IPG_CLK:
case MXC_CSPI_CLK:
return imx_get_ipgclk();
case MXC_FEC_CLK: case MXC_FEC_CLK:
return imx_get_ahbclk(); return imx_get_ahbclk();
default: default:

5
arch/arm/include/asm/arch-mx25/clock.h
View File

@ -41,6 +41,7 @@
#endif #endif
enum mxc_clock { enum mxc_clock {
/* PER clocks (do not change order) */
MXC_CSI_CLK, MXC_CSI_CLK,
MXC_EPIT_CLK, MXC_EPIT_CLK,
MXC_ESAI_CLK, MXC_ESAI_CLK,
@ -57,7 +58,11 @@ enum mxc_clock {
MXC_SSI1_CLK, MXC_SSI1_CLK,
MXC_SSI2_CLK, MXC_SSI2_CLK,
MXC_UART_CLK, MXC_UART_CLK,
/* Other clocks */
MXC_ARM_CLK, MXC_ARM_CLK,
MXC_AHB_CLK,
MXC_IPG_CLK,
MXC_CSPI_CLK,
MXC_FEC_CLK, MXC_FEC_CLK,
MXC_CLK_NUM MXC_CLK_NUM
}; };