mmc: Split mmc struct, rework mmc initialization (v2)
The way that struct mmc was implemented was a bit of a mess;
configuration and internal state all jumbled up in a single structure.
On top of that the way initialization is done with mmc_register leads
to a lot of duplicated code in drivers.
Typically the initialization got something like this in every driver.
struct mmc *mmc = malloc(sizeof(struct mmc));
memset(mmc, 0, sizeof(struct mmc);
/* fill in fields of mmc struct */
/* store private data pointer */
mmc_register(mmc);
By using the new mmc_create call one just passes an mmc config struct
and an optional private data pointer like this:
struct mmc = mmc_create(&cfg, priv);
All in tree drivers have been updated to the new form, and expect
mmc_register to go away before long.
Changes since v1:
* Use calloc instead of manually calling memset.
* Mark mmc_register as deprecated.
Signed-off-by: Pantelis Antoniou <panto@antoniou-consulting.com>
diff --git a/arch/arm/include/asm/arch-davinci/sdmmc_defs.h b/arch/arm/include/asm/arch-davinci/sdmmc_defs.h
index 3e9e606..9aa3f4a 100644
--- a/arch/arm/include/asm/arch-davinci/sdmmc_defs.h
+++ b/arch/arm/include/asm/arch-davinci/sdmmc_defs.h
@@ -151,6 +151,7 @@
uint host_caps; /* Host capabilities */
uint voltages; /* Host supported voltages */
uint version; /* MMC Controller version */
+ struct mmc_config cfg;
};
enum {
diff --git a/arch/arm/include/asm/arch-tegra/tegra_mmc.h b/arch/arm/include/asm/arch-tegra/tegra_mmc.h
index b6896af..310bbd7 100644
--- a/arch/arm/include/asm/arch-tegra/tegra_mmc.h
+++ b/arch/arm/include/asm/arch-tegra/tegra_mmc.h
@@ -11,6 +11,9 @@
#include <fdtdec.h>
+/* for mmc_config definition */
+#include <mmc.h>
+
#define MAX_HOSTS 4 /* Max number of 'hosts'/controllers */
#ifndef __ASSEMBLY__
@@ -138,6 +141,7 @@
struct fdt_gpio_state wp_gpio; /* Write Protect GPIO */
unsigned int version; /* SDHCI spec. version */
unsigned int clock; /* Current clock (MHz) */
+ struct mmc_config cfg; /* mmc configuration */
};
void pad_init_mmc(struct mmc_host *host);