sunxi: Create helper function veryfing valid boot signature on MMC

This patch extracts checking for valid SD card "eGON.BT0" signature from
`board_mmc_init` into function `sunxi_mmc_has_egon_boot_signature`.

Buffer for mmc sector is allocated and freed at runtime. `panic` is
triggered on malloc failure.

Signed-off-by: Daniel Kochmański <dkochmanski@turtle-solutions.eu>
CC: Roy Spliet <r.spliet@ultimaker.com>
Cc: Ian Campbell <ijc@hellion.org.uk>
[hdegoede@redhat.com: Small bugfix to make it work for devs other then mmc0]
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
This commit is contained in:
Daniel Kochmański
2015-05-29 16:55:41 +02:00
committed by Hans de Goede
parent 1b26bab12e
commit 645c48f50e
3 changed files with 20 additions and 6 deletions

View File

@@ -127,4 +127,5 @@ struct sunxi_mmc {
#define SUNXI_MMC_COMMON_RESET (1 << 18)
struct mmc *sunxi_mmc_init(int sdc_no);
int sunxi_mmc_has_egon_boot_signature(struct mmc *mmc);
#endif /* _SUNXI_MMC_H */