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Expand the list of compatible devices this driver works with. Increase

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the target frequency from 1 to 10 MHz because these SoCs are plenty fast
enough to benefit from the extra event timer resolution.
This commit is contained in:
ian 2013-10-31 01:45:55 +00:00
parent 5a08a2da60
commit 9e3ae53cb8
1 changed files with 17 additions and 10 deletions
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27
sys/arm/freescale/imx/imx_gpt.c
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@ -95,7 +95,7 @@ struct imx_gpt_softc *imx_gpt_sc = NULL;
static const int imx_gpt_delay_count = 78;
/* Try to divide down an available fast clock to this frequency. */
#define TARGET_FREQUENCY 1000000
#define TARGET_FREQUENCY 10000000
/* Don't try to set an event timer period smaller than this. */
#define MIN_ET_PERIOD 10LLU
@ -107,16 +107,26 @@ static struct resource_spec imx_gpt_spec[] = {
{ -1, 0 }
};
static struct ofw_compat_data compat_data[] = {
{"fsl,imx6q-gpt", 1},
{"fsl,imx53-gpt", 1},
{"fsl,imx51-gpt", 1},
{"fsl,imx31-gpt", 1},
{"fsl,imx27-gpt", 1},
{"fsl,imx25-gpt", 1},
{NULL, 0}
};
static int
imx_gpt_probe(device_t dev)
{
if (!ofw_bus_is_compatible(dev, "fsl,imx51-gpt") &&
!ofw_bus_is_compatible(dev, "fsl,imx53-gpt"))
return (ENXIO);
if (ofw_bus_search_compatible(dev, compat_data)->ocd_data != 0) {
device_set_desc(dev, "Freescale i.MX GPT timer");
return (BUS_PROBE_DEFAULT);
}
device_set_desc(dev, "Freescale i.MX GPT timer");
return (BUS_PROBE_DEFAULT);
return (ENXIO);
}
static int
@ -142,10 +152,7 @@ imx_gpt_attach(device_t dev)
* we're running on. Eventually we could allow selection from the fdt;
* the code in this driver will cope with any clock frequency.
*/
if (ofw_bus_is_compatible(dev, "fsl,imx6-gpt"))
sc->sc_clksrc = GPT_CR_CLKSRC_24M;
else
sc->sc_clksrc = GPT_CR_CLKSRC_IPG;
sc->sc_clksrc = GPT_CR_CLKSRC_IPG;
ctlreg = 0;