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sdhci_xenon: enable MMC FDT parsing

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The mmc_fdt_parse allows to parse more MMC-related
FDT properties. Start using it. "wp-inverted" property,
VQMMC and newly added VMMC power supply parsing
is now done in a generic code.

Reviewed by: manu
Obtained from: Semihalf
Sponsored by: Marvell
Differential Revision: https://reviews.freebsd.org/D30562
MFC after: 2 weeks
This commit is contained in:
Marcin Wojtas 2021-05-01 09:55:06 +02:00
parent 5652be30a3
commit 43e31350f8
1 changed files with 17 additions and 16 deletions
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33
sys/dev/sdhci/sdhci_xenon.c
View file

@ -53,6 +53,7 @@ __FBSDID("$FreeBSD$");
#include <dev/ofw/ofw_bus_subr.h>
#include <dev/mmc/bridge.h>
#include <dev/mmc/mmc_fdt_helpers.h>
#include <dev/mmc/mmcbrvar.h>
#include <dev/mmc/mmcreg.h>
@ -91,12 +92,12 @@ struct sdhci_xenon_softc {
struct sdhci_slot *slot; /* SDHCI internal data */
struct resource *mem_res; /* Memory resource */
regulator_t reg_vqmmc; /* vqmmc-supply regulator */
uint8_t znr; /* PHY ZNR */
uint8_t zpr; /* PHY ZPR */
bool no_18v; /* No 1.8V support */
bool slow_mode; /* PHY slow mode */
bool wp_inverted; /* WP pin is inverted */
struct mmc_fdt_helper mmc_helper; /* MMC helper for parsing FDT */
};
static uint8_t
@ -189,7 +190,8 @@ sdhci_xenon_get_ro(device_t bus, device_t dev)
{
struct sdhci_xenon_softc *sc = device_get_softc(bus);
return (sdhci_generic_get_ro(bus, dev) ^ sc->wp_inverted);
return (sdhci_generic_get_ro(bus, dev) ^
(sc->mmc_helper.props & MMC_PROP_WP_INVERTED));
}
static bool
@ -356,15 +358,19 @@ sdhci_xenon_update_ios(device_t brdev, device_t reqdev)
if (bootverbose)
device_printf(sc->dev, "Powering down sd/mmc\n");
if (sc->reg_vqmmc)
regulator_disable(sc->reg_vqmmc);
if (sc->mmc_helper.vmmc_supply)
regulator_disable(sc->mmc_helper.vmmc_supply);
if (sc->mmc_helper.vqmmc_supply)
regulator_disable(sc->mmc_helper.vqmmc_supply);
break;
case power_up:
if (bootverbose)
device_printf(sc->dev, "Powering up sd/mmc\n");
if (sc->reg_vqmmc)
regulator_enable(sc->reg_vqmmc);
if (sc->mmc_helper.vmmc_supply)
regulator_enable(sc->mmc_helper.vmmc_supply);
if (sc->mmc_helper.vqmmc_supply)
regulator_enable(sc->mmc_helper.vqmmc_supply);
break;
};
@ -391,7 +397,7 @@ sdhci_xenon_switch_vccq(device_t brdev, device_t reqdev)
sc = device_get_softc(brdev);
if (sc->reg_vqmmc == NULL)
if (sc->mmc_helper.vqmmc_supply == NULL)
return EOPNOTSUPP;
slot = device_get_ivars(reqdev);
@ -406,7 +412,7 @@ sdhci_xenon_switch_vccq(device_t brdev, device_t reqdev)
return EINVAL;
}
err = regulator_set_voltage(sc->reg_vqmmc, uvolt, uvolt);
err = regulator_set_voltage(sc->mmc_helper.vqmmc_supply, uvolt, uvolt);
if (err != 0) {
device_printf(sc->dev,
"Cannot set vqmmc to %d<->%d\n",
@ -444,8 +450,6 @@ sdhci_xenon_probe(device_t dev)
sc->max_clk = cid;
if (OF_hasprop(sc->node, "no-1-8-v"))
sc->no_18v = true;
if (OF_hasprop(sc->node, "wp-inverted"))
sc->wp_inverted = true;
if (OF_hasprop(sc->node, "marvell,xenon-phy-slow-mode"))
sc->slow_mode = true;
sc->znr = XENON_ZNR_DEF_VALUE;
@ -456,11 +460,6 @@ sdhci_xenon_probe(device_t dev)
if ((OF_getencprop(sc->node, "marvell,xenon-phy-zpr", &cid,
sizeof(cid))) > 0)
sc->zpr = cid & XENON_ZPR_MASK;
if (regulator_get_by_ofw_property(dev, 0, "vqmmc-supply",
&sc->reg_vqmmc) == 0 && bootverbose) {
if (bootverbose)
device_printf(dev, "vqmmc-supply regulator found\n");
}
return (0);
}
@ -515,6 +514,8 @@ sdhci_xenon_attach(device_t dev)
*/
sc->gpio = sdhci_fdt_gpio_setup(dev, slot);
mmc_fdt_parse(dev, 0, &sc->mmc_helper, &sc->slot->host);
if (sdhci_init_slot(dev, sc->slot, 0))
goto fail;