mmc: fsl_esdhc_imx: simplify 64bit check for SDMA transfers
authorSean Anderson <sean.anderson@seco.com>
Tue, 23 Nov 2021 20:03:42 +0000 (15:03 -0500)
committerJaehoon Chung <jh80.chung@samsung.com>
Wed, 12 Jan 2022 00:56:40 +0000 (09:56 +0900)
[ fsl_esdhc commit da86e8cfcb03ed5c1d8e0718bc8bc8583e60ced8 ]

SDMA can only do DMA with 32 bit addresses. This is true for all
architectures (just doesn't apply to 32 bit ones). Simplify the code and
remove unnecessary CONFIG_FSL_LAYERSCAPE.

Also make the error message more concise.

Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
drivers/mmc/fsl_esdhc_imx.c

index 72f3eec..84df131 100644 (file)
@@ -282,10 +282,7 @@ static int esdhc_setup_data(struct fsl_esdhc_priv *priv, struct mmc *mmc,
 {
        int timeout;
        struct fsl_esdhc *regs = priv->esdhc_regs;
-#if defined(CONFIG_S32V234) || defined(CONFIG_IMX8) || defined(CONFIG_IMX8M) || \
-       defined(CONFIG_IMX8ULP)
        dma_addr_t addr;
-#endif
        uint wml_value;
 
        wml_value = data->blocksize/4;
@@ -296,16 +293,10 @@ static int esdhc_setup_data(struct fsl_esdhc_priv *priv, struct mmc *mmc,
 
                esdhc_clrsetbits32(&regs->wml, WML_RD_WML_MASK, wml_value);
 #ifndef CONFIG_SYS_FSL_ESDHC_USE_PIO
-#if defined(CONFIG_S32V234) || defined(CONFIG_IMX8) || defined(CONFIG_IMX8M) || \
-       defined(CONFIG_IMX8ULP)
                addr = virt_to_phys((void *)(data->dest));
                if (upper_32_bits(addr))
-                       printf("Error found for upper 32 bits\n");
-               else
-                       esdhc_write32(&regs->dsaddr, lower_32_bits(addr));
-#else
-               esdhc_write32(&regs->dsaddr, (u32)data->dest);
-#endif
+                       printf("Cannot use 64 bit addresses with SDMA\n");
+               esdhc_write32(&regs->dsaddr, lower_32_bits(addr));
 #endif
        } else {
 #ifndef CONFIG_SYS_FSL_ESDHC_USE_PIO
@@ -334,16 +325,10 @@ static int esdhc_setup_data(struct fsl_esdhc_priv *priv, struct mmc *mmc,
                esdhc_clrsetbits32(&regs->wml, WML_WR_WML_MASK,
                                        wml_value << 16);
 #ifndef CONFIG_SYS_FSL_ESDHC_USE_PIO
-#if defined(CONFIG_S32V234) || defined(CONFIG_IMX8) || defined(CONFIG_IMX8M) || \
-               defined(CONFIG_IMX8ULP)
                addr = virt_to_phys((void *)(data->src));
                if (upper_32_bits(addr))
-                       printf("Error found for upper 32 bits\n");
-               else
-                       esdhc_write32(&regs->dsaddr, lower_32_bits(addr));
-#else
-               esdhc_write32(&regs->dsaddr, (u32)data->src);
-#endif
+                       printf("Cannot use 64 bit addresses with SDMA\n");
+               esdhc_write32(&regs->dsaddr, lower_32_bits(addr));
 #endif
        }
 
@@ -400,18 +385,12 @@ static void check_and_invalidate_dcache_range
        unsigned end = 0;
        unsigned size = roundup(ARCH_DMA_MINALIGN,
                                data->blocks*data->blocksize);
-#if defined(CONFIG_S32V234) || defined(CONFIG_IMX8) || defined(CONFIG_IMX8M) || \
-       defined(CONFIG_IMX8ULP)
        dma_addr_t addr;
 
        addr = virt_to_phys((void *)(data->dest));
        if (upper_32_bits(addr))
-               printf("Error found for upper 32 bits\n");
-       else
-               start = lower_32_bits(addr);
-#else
-       start = (unsigned)data->dest;
-#endif
+               printf("Cannot use 64 bit addresses with SDMA\n");
+       start = lower_32_bits(addr);
        end = start + size;
        invalidate_dcache_range(start, end);
 }