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refactor(mmc): replace magic value with new PART_CFG_BOOT_PARTITION_NO_ACCESS

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Disabling access to the boot partition reverts the MMC to read from the
user area. Add a macro to make this clearer.

Suggested-by: Manish V Badarkhe <Manish.Badarkhe@arm.com>
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Change-Id: I34a5a987980bb4690d08d255f465b11a4697ed5a
This commit is contained in:
Ahmad Fatoum 2022-05-31 10:03:04 +02:00
parent f85041a657
commit 01c5dd5e59
2 changed files with 2 additions and 1 deletions
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2
drivers/mmc/mmc.c
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@ -778,7 +778,7 @@ int mmc_part_switch_user(void)
{
int ret;
ret = mmc_part_switch(0);
ret = mmc_part_switch(PART_CFG_BOOT_PARTITION_NO_ACCESS);
if (ret < 0) {
ERROR("Failed to switch to user partition, %d\n", ret);
}

1
include/drivers/mmc.h
View file

@ -66,6 +66,7 @@
#define EXT_CSD_PART_CONFIG_ACC_MASK GENMASK(2, 0)
#define PART_CFG_BOOT_PARTITION1_ENABLE (U(1) << 3)
#define PART_CFG_BOOT_PARTITION1_ACCESS (U(1) << 0)
#define PART_CFG_BOOT_PARTITION_NO_ACCESS U(0)
#define PART_CFG_BOOT_PART_EN_MASK GENMASK(5, 3)
#define PART_CFG_BOOT_PART_EN_SHIFT 3
#define PART_CFG_CURRENT_BOOT_PARTITION(x) (((x) & PART_CFG_BOOT_PART_EN_MASK) >> \