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sdhci: Add support for disable-wp

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Some platform needs it when the WP pin is broken.

Sponsored by:	Beckhoff Automation GmbH & Co. KG
MFC after:	2 weeks
This commit is contained in:
Emmanuel Vadot 2022-09-29 13:58:08 +02:00
parent b426119a45
commit e758ed2dd5
1 changed files with 5 additions and 0 deletions
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5
sys/dev/sdhci/sdhci_fdt.c
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@ -143,6 +143,7 @@ struct sdhci_fdt_softc {
struct resource *mem_res[MAX_SLOTS]; /* Memory resource */
bool wp_inverted; /* WP pin is inverted */
bool wp_disabled; /* WP pin is not supported */
bool no_18v; /* No 1.8V support */
clk_t clk_xin; /* xin24m fixed clock */
@ -433,6 +434,8 @@ sdhci_fdt_get_ro(device_t bus, device_t dev)
{
struct sdhci_fdt_softc *sc = device_get_softc(bus);
if (sc->wp_disabled)
return (false);
return (sdhci_generic_get_ro(bus, dev) ^ sc->wp_inverted);
}
@ -554,6 +557,8 @@ sdhci_fdt_probe(device_t dev)
sc->no_18v = true;
if (OF_hasprop(node, "wp-inverted"))
sc->wp_inverted = true;
if (OF_hasprop(node, "disable-wp"))
sc->wp_disabled = true;
return (0);
}