mmc: omap_hsmmc: make it possible to compile out ADMA support
Some platforms don't have ADMA controllers. For those platforms, compiling
it out reduces the size of the binary by about 600 bytes.
Leaving the support in doesn't break things as the driver checks at runtime
if the ADMA2 controller is present.
Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
Tested-by: Adam Ford <aford173@gmail.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
diff --git a/drivers/mmc/Kconfig b/drivers/mmc/Kconfig
index f2d8256..88a1359 100644
--- a/drivers/mmc/Kconfig
+++ b/drivers/mmc/Kconfig
@@ -239,6 +239,15 @@
If unsure, say N.
+config MMC_OMAP_HS_ADMA
+ bool "ADMA support for OMAP HS MMC"
+ depends on MMC_OMAP_HS && !OMAP34XX
+ default y if !AM33XX
+ help
+ This enables support for the ADMA2 controller (SDA3.00 Part A2 DMA
+ controller). If supported by the hardware, selecting this option will
+ increase performances.
+
config MMC_OMAP36XX_PINS
bool "Enable MMC1 on OMAP36xx/37xx"
depends on OMAP34XX && MMC_OMAP_HS
diff --git a/drivers/mmc/omap_hsmmc.c b/drivers/mmc/omap_hsmmc.c
index 8b57edc..3d2836d 100644
--- a/drivers/mmc/omap_hsmmc.c
+++ b/drivers/mmc/omap_hsmmc.c
@@ -93,7 +93,7 @@
enum bus_mode mode;
#endif
u8 controller_flags;
-#ifndef CONFIG_OMAP34XX
+#ifdef CONFIG_MMC_OMAP_HS_ADMA
struct omap_hsmmc_adma_desc *adma_desc_table;
uint desc_slot;
#endif
@@ -117,7 +117,7 @@
u8 controller_flags;
};
-#ifndef CONFIG_OMAP34XX
+#ifdef CONFIG_MMC_OMAP_HS_ADMA
struct omap_hsmmc_adma_desc {
u8 attr;
u8 reserved;
@@ -741,7 +741,7 @@
return -ETIMEDOUT;
}
}
-#ifndef CONFIG_OMAP34XX
+#ifdef CONFIG_MMC_OMAP_HS_ADMA
reg_val = readl(&mmc_base->hl_hwinfo);
if (reg_val & MADMA_EN)
priv->controller_flags |= OMAP_HSMMC_USE_ADMA;
@@ -834,7 +834,7 @@
}
}
-#ifndef CONFIG_OMAP34XX
+#ifdef CONFIG_MMC_OMAP_HS_ADMA
static void omap_hsmmc_adma_desc(struct mmc *mmc, char *buf, u16 len, bool end)
{
struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc);
@@ -1037,7 +1037,7 @@
else
flags |= (DP_DATA | DDIR_WRITE);
-#ifndef CONFIG_OMAP34XX
+#ifdef CONFIG_MMC_OMAP_HS_ADMA
if ((priv->controller_flags & OMAP_HSMMC_USE_ADMA) &&
!mmc_is_tuning_cmd(cmd->cmdidx)) {
omap_hsmmc_prepare_data(mmc, data);
@@ -1082,7 +1082,7 @@
}
}
-#ifndef CONFIG_OMAP34XX
+#ifdef CONFIG_MMC_OMAP_HS_ADMA
if ((priv->controller_flags & OMAP_HSMMC_USE_ADMA) && data &&
!mmc_is_tuning_cmd(cmd->cmdidx)) {
u32 sz_mb, timeout;