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sdhci: fdt: Always enable clock for ZynqMP and RK3399

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Those two (in fact all of the supported one in this driver except RK3568) always
needs the clocks to be enabled.

Reviewed-by:	bz
Differential Revision:	https://reviews.freebsd.org/D41808
Sponsored by:	Beckhoff Automation GmbH & Co. KG
This commit is contained in:
Emmanuel Vadot 2023-09-06 11:07:00 +02:00
parent 8c7e747491
commit 9377d7049c
1 changed files with 39 additions and 20 deletions
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59
sys/dev/sdhci/sdhci_fdt.c
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@ -268,13 +268,9 @@ sdhci_init_rk3399_emmccardclk(device_t dev)
}
static int
sdhci_init_rk3399(device_t dev)
sdhci_init_clocks(device_t dev)
{
struct sdhci_fdt_softc *sc = device_get_softc(dev);
struct syscon *grf = NULL;
phandle_t node;
uint64_t freq;
uint32_t mask, val;
int error;
/* Get and activate clocks */
@ -288,11 +284,6 @@ sdhci_init_rk3399(device_t dev)
device_printf(dev, "cannot enable xin clock\n");
return (ENXIO);
}
error = clk_get_freq(sc->clk_xin, &freq);
if (error != 0) {
device_printf(dev, "cannot get xin clock frequency\n");
return (ENXIO);
}
error = clk_get_by_ofw_name(dev, 0, "clk_ahb", &sc->clk_ahb);
if (error != 0) {
device_printf(dev, "cannot get ahb clock\n");
@ -304,6 +295,25 @@ sdhci_init_rk3399(device_t dev)
return (ENXIO);
}
return (0);
}
static int
sdhci_init_rk3399(device_t dev)
{
struct sdhci_fdt_softc *sc = device_get_softc(dev);
struct syscon *grf = NULL;
phandle_t node;
uint64_t freq;
uint32_t mask, val;
int error;
error = clk_get_freq(sc->clk_xin, &freq);
if (error != 0) {
device_printf(dev, "cannot get xin clock frequency\n");
return (ENXIO);
}
/* Register clock */
sdhci_init_rk3399_emmccardclk(dev);
@ -561,7 +571,7 @@ sdhci_fdt_attach(device_t dev)
{
struct sdhci_fdt_softc *sc = device_get_softc(dev);
struct sdhci_slot *slot;
int err, slots, rid, i;
int err, slots, rid, i, compat;
sc->dev = dev;
@ -574,24 +584,33 @@ sdhci_fdt_attach(device_t dev)
return (ENOMEM);
}
if (ofw_bus_search_compatible(dev, compat_data)->ocd_data ==
SDHCI_FDT_RK3399) {
/* Initialize SDHCI */
err = sdhci_init_rk3399(dev);
compat = ofw_bus_search_compatible(dev, compat_data)->ocd_data;
switch (compat) {
case SDHCI_FDT_RK3399:
case SDHCI_FDT_XLNX_ZMP:
err = sdhci_init_clocks(dev);
if (err != 0) {
device_printf(dev, "Cannot init RK3399 SDHCI\n");
device_printf(dev, "Cannot init clocks\n");
return (err);
}
}
if (ofw_bus_search_compatible(dev, compat_data)->ocd_data ==
SDHCI_FDT_RK3568) {
if (compat == SDHCI_FDT_RK3399) {
err = sdhci_init_rk3399(dev);
if (err != 0) {
device_printf(dev, "Cannot init RK3399 SDHCI\n");
return (err);
}
}
break;
case SDHCI_FDT_RK3568:
/* setup & enable clocks */
if (clk_get_by_ofw_name(dev, 0, "core", &sc->clk_core)) {
device_printf(dev, "cannot get core clock\n");
return (ENXIO);
}
clk_enable(sc->clk_core);
break;
default:
break;
}
/* Scan all slots. */