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mmc: sdhci-of-arasan: Add Support for Intel LGM eMMC 

The current arasan sdhci PHY configuration isn't compatible
with the PHY on Intel's LGM(Lightning Mountain) SoC devices.

Therefore, add a new compatible, to adapt the Intel's LGM
eMMC PHY with arasan-sdhc controller to configure the PHY.

Signed-off-by: Ramuthevar Vadivel Muruganx <vadivel.muruganx.ramuthevar@linux.intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Ramuthevar Vadivel Muruganx 2019-08-26 15:28:00 +08:00 committed by Ulf Hansson
parent 310da16ea9
commit 5c1a4f4070
1 changed files with 15 additions and 0 deletions
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15
drivers/mmc/host/sdhci-of-arasan.c
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@ -114,6 +114,12 @@ static const struct sdhci_arasan_soc_ctl_map rk3399_soc_ctl_map = {
.hiword_update = true,
};
static const struct sdhci_arasan_soc_ctl_map intel_lgm_emmc_soc_ctl_map = {
.baseclkfreq = { .reg = 0xa0, .width = 8, .shift = 2 },
.clockmultiplier = { .reg = 0, .width = -1, .shift = -1 },
.hiword_update = false,
};
/**
* sdhci_arasan_syscon_write - Write to a field in soc_ctl registers
*
@ -373,6 +379,11 @@ static struct sdhci_arasan_of_data sdhci_arasan_rk3399_data = {
.pdata = &sdhci_arasan_cqe_pdata,
};
static struct sdhci_arasan_of_data intel_lgm_emmc_data = {
.soc_ctl_map = &intel_lgm_emmc_soc_ctl_map,
.pdata = &sdhci_arasan_cqe_pdata,
};
#ifdef CONFIG_PM_SLEEP
/**
* sdhci_arasan_suspend - Suspend method for the driver
@ -474,6 +485,10 @@ static const struct of_device_id sdhci_arasan_of_match[] = {
.compatible = "rockchip,rk3399-sdhci-5.1",
.data = &sdhci_arasan_rk3399_data,
},
{
.compatible = "intel,lgm-sdhci-5.1-emmc",
.data = &intel_lgm_emmc_data,
},
/* Generic compatible below here */
{
.compatible = "arasan,sdhci-8.9a",