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authorPantelis Antoniou <panto@antoniou-consulting.com>2014-03-11 19:34:20 +0200
committerPantelis Antoniou <panto@antoniou-consulting.com>2014-03-24 12:58:56 +0200
commit93bfd6167713a5cc1a78bcf60fa63f990fd3f4b3 (patch)
tree9450ca369c296374e9a376f6950c521c2a89cab8 /arch
parent22cb7d334e296288e53057467dfee26858275516 (diff)
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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>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/include/asm/arch-davinci/sdmmc_defs.h1
-rw-r--r--arch/arm/include/asm/arch-tegra/tegra_mmc.h4
2 files changed, 5 insertions, 0 deletions
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 @@ struct davinci_mmc {
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 mmc_host {
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);