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dwmmc_rockchip: Add support for rk3328-dw-mshc

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* Do not use pio mode like rk2928
* Change clocks frequency in update_ios

Tested-On:    Pine64 Rock64 (RK3328)
This commit is contained in:
Emmanuel Vadot 2018-02-26 21:29:01 +00:00
parent dd198e868a
commit a5091e03c5
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=330038
2 changed files with 47 additions and 2 deletions
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1
sys/conf/files.arm64
View file

@ -185,6 +185,7 @@ dev/hwpmc/hwpmc_arm64_md.c optional hwpmc
dev/mbox/mbox_if.m optional soc_brcm_bcm2837
dev/mmc/host/dwmmc.c optional dwmmc fdt
dev/mmc/host/dwmmc_hisi.c optional dwmmc fdt soc_hisi_hi6220
dev/mmc/host/dwmmc_rockchip.c optional dwmmc fdt soc_rockchip_rk3328
dev/neta/if_mvneta_fdt.c optional neta fdt
dev/neta/if_mvneta.c optional neta mdio mii
dev/ofw/ofw_cpu.c optional fdt

48
sys/dev/mmc/host/dwmmc_rockchip.c
View file

@ -41,11 +41,19 @@ __FBSDID("$FreeBSD$");
#include <dev/mmc/host/dwmmc_var.h>
enum RKTYPE {
RK2928 = 1,
RK3328,
};
static struct ofw_compat_data compat_data[] = {
{"rockchip,rk2928-dw-mshc", 1},
{"rockchip,rk2928-dw-mshc", RK2928},
{"rockchip,rk3328-dw-mshc", RK3328},
{NULL, 0},
};
static int dwmmc_rockchip_update_ios(struct dwmmc_softc *sc, struct mmc_ios *ios);
static int
rockchip_dwmmc_probe(device_t dev)
{
@ -66,16 +74,52 @@ static int
rockchip_dwmmc_attach(device_t dev)
{
struct dwmmc_softc *sc;
int type;
sc = device_get_softc(dev);
sc->hwtype = HWTYPE_ROCKCHIP;
type = ofw_bus_search_compatible(dev, compat_data)->ocd_data;
switch (type) {
case RK2928:
sc->use_pio = 1;
break;
}
sc->use_pio = 1;
sc->pwren_inverted = 1;
sc->update_ios = &dwmmc_rockchip_update_ios;
return (dwmmc_attach(dev));
}
static int
dwmmc_rockchip_update_ios(struct dwmmc_softc *sc, struct mmc_ios *ios)
{
unsigned int clock;
int error;
if (ios->clock && ios->clock != sc->bus_hz) {
sc->bus_hz = clock = ios->clock;
/* Set the MMC clock. */
if (sc->ciu) {
/*
* Apparently you need to set the ciu clock to
* the double of bus_hz
*/
error = clk_set_freq(sc->ciu, clock * 2,
CLK_SET_ROUND_DOWN);
if (error != 0) {
device_printf(sc->dev,
"failed to set frequency to %u Hz: %d\n",
clock, error);
return (error);
}
}
}
return (0);
}
static device_method_t rockchip_dwmmc_methods[] = {
/* bus interface */
DEVMETHOD(device_probe, rockchip_dwmmc_probe),