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sdhci_fsl_fdt: Apply errata for LX2160A

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LX2160A is affected by two erratum regarding SDHCI. However this board
has generic compat string in DTS for SDHCI which means erratum cannot
be simply applied. Compare compat string from "/" path with LX2160A
compat string when attaching device and apply erratum.

Reviewed by: mmel, imp
Obtained from: Semihalf
Sponsored by: Alstom Group
Differential revision: https://reviews.freebsd.org/D34028
This commit is contained in:
Hubert Mazur 2021-12-21 15:52:56 +01:00 committed by Wojciech Macek
parent 29cb30dcb0
commit caca7dd087
1 changed files with 20 additions and 3 deletions
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23
sys/dev/sdhci/sdhci_fsl_fdt.c
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@ -219,6 +219,13 @@ static const struct sdhci_fsl_fdt_soc_data sdhci_fsl_fdt_ls1046a_soc_data = {
.errata = SDHCI_FSL_UNSUPP_1_8V | SDHCI_FSL_TUNING_ERRATUM_TYPE2,
};
static const struct sdhci_fsl_fdt_soc_data sdhci_fsl_fdt_lx2160a_soc_data = {
.quirks = 0,
.baseclk_div = 2,
.errata = SDHCI_FSL_UNRELIABLE_PULSE_DET |
SDHCI_FSL_HS400_LIMITED_CLK_DIV,
};
static const struct sdhci_fsl_fdt_soc_data sdhci_fsl_fdt_gen_data = {
.quirks = 0,
.baseclk_div = 1,
@ -790,13 +797,23 @@ sdhci_fsl_fdt_attach(device_t dev)
sc = device_get_softc(dev);
ocd_data = ofw_bus_search_compatible(dev,
sdhci_fsl_fdt_compat_data)->ocd_data;
sc->soc_data = (struct sdhci_fsl_fdt_soc_data *)ocd_data;
sc->dev = dev;
sc->slot.quirks = sc->soc_data->quirks;
sc->flags = 0;
host = &sc->slot.host;
rid = 0;
/*
* LX2160A needs its own soc_data in order to apply SoC
* specific quriks. Since the controller is identified
* only with a generic compatible string we need to do this dance here.
*/
if (ofw_bus_node_is_compatible(OF_finddevice("/"), "fsl,lx2160a"))
sc->soc_data = &sdhci_fsl_fdt_lx2160a_soc_data;
else
sc->soc_data = (struct sdhci_fsl_fdt_soc_data *)ocd_data;
sc->slot.quirks = sc->soc_data->quirks;
sc->mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,
RF_ACTIVE);
if (sc->mem_res == NULL) {