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Convert the if/else list of compatible devices to the table-driven

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ofw_bus_search_compatible() routine.  In addition to converting existing
strings to table entries, also add compat strings for the whole imx family.
This commit is contained in:
Ian Lepore 2013-10-31 23:57:33 +00:00
parent 3d9d5b4313
commit 8ef18b3b15
1 changed files with 30 additions and 15 deletions
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45
sys/dev/uart/uart_bus_fdt.c
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@ -61,6 +61,30 @@ static driver_t uart_fdt_driver = {
sizeof(struct uart_softc),
};
/*
* Compatible devices. Keep this sorted in most- to least-specific order first,
* alphabetical second. That is, "zwie,ns16550" should appear before "ns16550"
* on the theory that the zwie driver knows how to make better use of the
* hardware than the generic driver. Likewise with chips within a family, the
* highest-numbers / most recent models should probably appear earlier.
*/
static struct ofw_compat_data compat_data[] = {
{"arm,pl011", (uintptr_t)&uart_pl011_class},
{"cadence,uart", (uintptr_t)&uart_cdnc_class},
{"exynos", (uintptr_t)&uart_s3c2410_class},
{"fsl,imx6q-uart", (uintptr_t)&uart_imx_class},
{"fsl,imx53-uart", (uintptr_t)&uart_imx_class},
{"fsl,imx51-uart", (uintptr_t)&uart_imx_class},
{"fsl,imx31-uart", (uintptr_t)&uart_imx_class},
{"fsl,imx27-uart", (uintptr_t)&uart_imx_class},
{"fsl,imx25-uart", (uintptr_t)&uart_imx_class},
{"fsl,imx21-uart", (uintptr_t)&uart_imx_class},
{"lpc,uart", (uintptr_t)&uart_lpc_class},
{"ti,ns16550", (uintptr_t)&uart_ti8250_class},
{"ns16550", (uintptr_t)&uart_ns8250_class},
{NULL, (uintptr_t)NULL},
};
static int
uart_fdt_get_clock(phandle_t node, pcell_t *cell)
{
@ -99,25 +123,16 @@ uart_fdt_probe(device_t dev)
phandle_t node;
pcell_t clock, shift;
int err;
const struct ofw_compat_data * cd;
sc = device_get_softc(dev);
if (ofw_bus_is_compatible(dev, "lpc,uart"))
sc->sc_class = &uart_lpc_class;
else if (ofw_bus_is_compatible(dev, "fsl,imx-uart"))
sc->sc_class = &uart_imx_class;
else if (ofw_bus_is_compatible(dev, "arm,pl011"))
sc->sc_class = &uart_pl011_class;
else if (ofw_bus_is_compatible(dev, "exynos"))
sc->sc_class = &uart_s3c2410_class;
else if (ofw_bus_is_compatible(dev, "cadence,uart"))
sc->sc_class = &uart_cdnc_class;
else if (ofw_bus_is_compatible(dev, "ti,ns16550"))
sc->sc_class = &uart_ti8250_class;
else if (ofw_bus_is_compatible(dev, "ns16550"))
sc->sc_class = &uart_ns8250_class;
else
cd = ofw_bus_search_compatible(dev, compat_data);
if (cd->ocd_data == (uintptr_t)NULL)
return (ENXIO);
sc->sc_class = (struct uart_class *)cd->ocd_data;
node = ofw_bus_get_node(dev);
if ((err = uart_fdt_get_clock(node, &clock)) != 0)