u-boot/0025-mmc-Introduce-mmc_phys_to_bus-mmc_b.patch

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2.7 KiB
Diff

From 9d5e73021a5778a29855140e50aa5309e7611618 Mon Sep 17 00:00:00 2001
From: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Date: Thu, 19 Nov 2020 16:39:00 +0100
Subject: [PATCH] mmc: Introduce mmc_phys_to_bus()/mmc_bus_to_phys()
This will allow us to use DM variants of phys_to_bus()/bus_to_phys()
when relevant.
Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
---
Changes since v4:
- Introduce mmc->dev access macros to avoid ifdefs
- No need to create mmc_phys_to_bus()
Changes since v3:
- Don't call phys_to_bus()/bus_to_phys(), we only support DM
---
drivers/mmc/sdhci.c | 12 +++++++-----
include/mmc.h | 6 ++++++
2 files changed, 13 insertions(+), 5 deletions(-)
diff --git a/drivers/mmc/sdhci.c b/drivers/mmc/sdhci.c
index 7673219fb3..874b686750 100644
--- a/drivers/mmc/sdhci.c
+++ b/drivers/mmc/sdhci.c
@@ -14,12 +14,12 @@
#include <log.h>
#include <malloc.h>
#include <mmc.h>
+#include <phys2bus.h>
#include <sdhci.h>
#include <asm/cache.h>
#include <linux/bitops.h>
#include <linux/delay.h>
#include <linux/dma-mapping.h>
-#include <phys2bus.h>
static void sdhci_reset(struct sdhci_host *host, u8 mask)
{
@@ -124,6 +124,7 @@ static void sdhci_prepare_adma_table(struct sdhci_host *host,
static void sdhci_prepare_dma(struct sdhci_host *host, struct mmc_data *data,
int *is_aligned, int trans_bytes)
{
+ dma_addr_t dma_addr;
unsigned char ctrl;
void *buf;
@@ -154,8 +155,8 @@ static void sdhci_prepare_dma(struct sdhci_host *host, struct mmc_data *data,
mmc_get_dma_dir(data));
if (host->flags & USE_SDMA) {
- sdhci_writel(host, phys_to_bus((ulong)host->start_addr),
- SDHCI_DMA_ADDRESS);
+ dma_addr = dev_phys_to_bus(mmc_to_dev(host->mmc), host->start_addr);
+ sdhci_writel(host, dma_addr, SDHCI_DMA_ADDRESS);
} else if (host->flags & (USE_ADMA | USE_ADMA64)) {
sdhci_prepare_adma_table(host, data);
@@ -209,8 +210,9 @@ static int sdhci_transfer_data(struct sdhci_host *host, struct mmc_data *data)
start_addr &=
~(SDHCI_DEFAULT_BOUNDARY_SIZE - 1);
start_addr += SDHCI_DEFAULT_BOUNDARY_SIZE;
- sdhci_writel(host, phys_to_bus((ulong)start_addr),
- SDHCI_DMA_ADDRESS);
+ start_addr = dev_phys_to_bus(mmc_to_dev(host->mmc),
+ start_addr);
+ sdhci_writel(host, start_addr, SDHCI_DMA_ADDRESS);
}
}
if (timeout-- > 0)
diff --git a/include/mmc.h b/include/mmc.h
index 82562193cc..d3f6c955d6 100644
--- a/include/mmc.h
+++ b/include/mmc.h
@@ -699,6 +699,12 @@ struct mmc {
u32 quirks;
};
+#if CONFIG_IS_ENABLED(DM_MMC)
+#define mmc_to_dev(_mmc) _mmc->dev
+#else
+#define mmc_to_dev(_mmc) NULL
+#endif
+
struct mmc_hwpart_conf {
struct {
uint enh_start; /* in 512-byte sectors */