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mmc: mmci: Don't pretend all variants to have OPENDRAIN bit

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This patch prepares for supporting STM32 variant which doesn't
have opendrain bit in MMCIPOWER register.
ST others variant (u300, nomadik and ux500) uses MCI_OD bit whereas
others variants uses MCI_ROD bit.

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Patrice Chotard 2018-01-18 15:34:19 +01:00 committed by Ulf Hansson
parent 7f7b55036c
commit 11dfb97011
1 changed files with 12 additions and 11 deletions
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23
drivers/mmc/host/mmci.c
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@ -85,6 +85,7 @@ static unsigned int fmax = 515633;
* @mmcimask1: true if variant have a MMCIMASK1 register.
* @start_err: bitmask identifying the STARTBITERR bit inside MMCISTATUS
* register.
* @opendrain: bitmask identifying the OPENDRAIN bit inside MMCIPOWER register
*/
struct variant_data {
unsigned int clkreg;
@ -116,6 +117,7 @@ struct variant_data {
bool reversed_irq_handling;
bool mmcimask1;
u32 start_err;
u32 opendrain;
};
static struct variant_data variant_arm = {
@ -127,6 +129,7 @@ static struct variant_data variant_arm = {
.reversed_irq_handling = true,
.mmcimask1 = true,
.start_err = MCI_STARTBITERR,
.opendrain = MCI_ROD,
};
static struct variant_data variant_arm_extended_fifo = {
@ -137,6 +140,7 @@ static struct variant_data variant_arm_extended_fifo = {
.f_max = 100000000,
.mmcimask1 = true,
.start_err = MCI_STARTBITERR,
.opendrain = MCI_ROD,
};
static struct variant_data variant_arm_extended_fifo_hwfc = {
@ -148,6 +152,7 @@ static struct variant_data variant_arm_extended_fifo_hwfc = {
.f_max = 100000000,
.mmcimask1 = true,
.start_err = MCI_STARTBITERR,
.opendrain = MCI_ROD,
};
static struct variant_data variant_u300 = {
@ -165,6 +170,7 @@ static struct variant_data variant_u300 = {
.pwrreg_nopower = true,
.mmcimask1 = true,
.start_err = MCI_STARTBITERR,
.opendrain = MCI_OD,
};
static struct variant_data variant_nomadik = {
@ -183,6 +189,7 @@ static struct variant_data variant_nomadik = {
.pwrreg_nopower = true,
.mmcimask1 = true,
.start_err = MCI_STARTBITERR,
.opendrain = MCI_OD,
};
static struct variant_data variant_ux500 = {
@ -207,6 +214,7 @@ static struct variant_data variant_ux500 = {
.pwrreg_nopower = true,
.mmcimask1 = true,
.start_err = MCI_STARTBITERR,
.opendrain = MCI_OD,
};
static struct variant_data variant_ux500v2 = {
@ -233,6 +241,7 @@ static struct variant_data variant_ux500v2 = {
.pwrreg_nopower = true,
.mmcimask1 = true,
.start_err = MCI_STARTBITERR,
.opendrain = MCI_OD,
};
static struct variant_data variant_qcom = {
@ -253,6 +262,7 @@ static struct variant_data variant_qcom = {
.qcom_dml = true,
.mmcimask1 = true,
.start_err = MCI_STARTBITERR,
.opendrain = MCI_ROD,
};
/* Busy detection for the ST Micro variant */
@ -1455,17 +1465,8 @@ static void mmci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
~MCI_ST_DATA2DIREN);
}
if (ios->bus_mode == MMC_BUSMODE_OPENDRAIN) {
if (host->hw_designer != AMBA_VENDOR_ST)
pwr |= MCI_ROD;
else {
/*
* The ST Micro variant use the ROD bit for something
* else and only has OD (Open Drain).
*/
pwr |= MCI_OD;
}
}
if (ios->bus_mode == MMC_BUSMODE_OPENDRAIN && variant->opendrain)
pwr |= variant->opendrain;
/*
* If clock = 0 and the variant requires the MMCIPOWER to be used for