mirrors/u-boot
1
0
Fork 0
mirror of https://source.denx.de/u-boot/u-boot.git synced 2025-09-23 23:01:28 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity

mmc: am654_sdhci: Add support for AM65x SR2.0

Browse Source 
Add Support for AM65x PG2.0. Use the SoC bus framework to fixup
the platform data and do DLL calibration if the revision is 1.0

Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
This commit is contained in:
Faiz Abbas 2021-02-04 15:10:50 +05:30 committed by Lokesh Vutla
parent 5b29fd4a8d
commit 8c32b5f370
1 changed files with 30 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

30
drivers/mmc/am654_sdhci.c
View File

@ -12,6 +12,7 @@
#include <power-domain.h> #include <power-domain.h>
#include <regmap.h> #include <regmap.h>
#include <sdhci.h> #include <sdhci.h>
#include <soc.h>
#include <dm/device_compat.h> #include <dm/device_compat.h>
#include <linux/bitops.h> #include <linux/bitops.h>
#include <linux/err.h> #include <linux/err.h>
@ -292,6 +293,11 @@ const struct sdhci_ops am654_sdhci_ops = {
}; };
const struct am654_driver_data am654_drv_data = { const struct am654_driver_data am654_drv_data = {
.ops = &am654_sdhci_ops,
.flags = DLL_PRESENT | IOMUX_PRESENT | FREQSEL_2_BIT | STRBSEL_4_BIT,
};
const struct am654_driver_data am654_sr1_drv_data = {
.ops = &am654_sdhci_ops, .ops = &am654_sdhci_ops,
.flags = IOMUX_PRESENT | FREQSEL_2_BIT | DLL_PRESENT | DLL_CALIB | .flags = IOMUX_PRESENT | FREQSEL_2_BIT | DLL_PRESENT | DLL_CALIB |
STRBSEL_4_BIT, STRBSEL_4_BIT,
@ -326,6 +332,11 @@ const struct am654_driver_data j721e_4bit_drv_data = {
.flags = IOMUX_PRESENT, .flags = IOMUX_PRESENT,
}; };
const struct soc_attr am654_sdhci_soc_attr[] = {
{ .family = "AM65X", .revision = "SR1.0", .data = &am654_sr1_drv_data},
{/* sentinel */}
};
static int sdhci_am654_get_otap_delay(struct udevice *dev, static int sdhci_am654_get_otap_delay(struct udevice *dev,
struct mmc_config *cfg) struct mmc_config *cfg)
{ {
@ -365,6 +376,8 @@ static int am654_sdhci_probe(struct udevice *dev)
struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev); struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev);
struct sdhci_host *host = dev_get_priv(dev); struct sdhci_host *host = dev_get_priv(dev);
struct mmc_config *cfg = &plat->cfg; struct mmc_config *cfg = &plat->cfg;
const struct soc_attr *soc;
const struct am654_driver_data *soc_drv_data;
struct clk clk; struct clk clk;
unsigned long clock; unsigned long clock;
int ret; int ret;
@ -394,6 +407,14 @@ static int am654_sdhci_probe(struct udevice *dev)
return ret; return ret;
host->ops = drv_data->ops; host->ops = drv_data->ops;
/* Update ops based on SoC revision */
soc = soc_device_match(am654_sdhci_soc_attr);
if (soc && soc->data) {
soc_drv_data = soc->data;
host->ops = soc_drv_data->ops;
}
host->mmc->priv = host; host->mmc->priv = host;
upriv->mmc = host->mmc; upriv->mmc = host->mmc;
@ -458,9 +479,18 @@ static int am654_sdhci_bind(struct udevice *dev)
struct am654_driver_data *drv_data = struct am654_driver_data *drv_data =
(struct am654_driver_data *)dev_get_driver_data(dev); (struct am654_driver_data *)dev_get_driver_data(dev);
struct am654_sdhci_plat *plat = dev_get_plat(dev); struct am654_sdhci_plat *plat = dev_get_plat(dev);
const struct soc_attr *soc;
const struct am654_driver_data *soc_drv_data;
plat->flags = drv_data->flags; plat->flags = drv_data->flags;
/* Update flags based on SoC revision */
soc = soc_device_match(am654_sdhci_soc_attr);
if (soc && soc->data) {
soc_drv_data = soc->data;
plat->flags = soc_drv_data->flags;
}
return sdhci_bind(dev, &plat->mmc, &plat->cfg); return sdhci_bind(dev, &plat->mmc, &plat->cfg);
} }