
Joakim Tjernlund wrote:
-----Original Message----- From: u-boot-users-bounces@lists.sourceforge.net [mailto:u-boot-users-bounces@lists.sourceforge.net] On Behalf Of Joakim Tjernlund Sent: den 21 december 2007 13:35 To: rmcguire@videopresence.com; u-boot-users@lists.sourceforge.net Cc: 'Kim Phillips' Subject: Re: [U-Boot-Users] 83xx, FSL_UEC reducing boot latency,printf causing crash
-----Original Message----- From: Russell McGuire [mailto:rmcguire@videopresence.com] Sent: den 21 december 2007 11:46 To: u-boot-users@lists.sourceforge.net Cc: 'Kim Phillips'; joakim.tjernlund@transmode.se Subject: RE: 83xx, FSL_UEC reducing boot latency, printf
causing crash
All,
Maybe somebody can help me understand what I am seeing Dealing with the printf causing crashes problem.
This only occurs if printfs are caleed from within the uec_phy.c file, and only them within functions that are mapped as part of a phy specific call, i.e. a function that was within a specific part, marvell, national, etc...
So when a read_status call is called, of course depending on your configuration it might get redirected to call genmii_read_status or equivlant.
Just to add, as I recall, it is the use of function pointers that is the probem. These doesn't get relocated with normal u-boot relocation. Full relocation adds stuff to __fixup_entries which will relocate function ptrs that normal relocation doesn't do.
Jocke
BTW, the marwell entry looks bad: static struct phy_info phy_info_marvell = { .phy_id = 0x01410c00, .phy_id_mask = 0xffffff00, .name = "Marvell 88E11x1", .features = MII_GBIT_FEATURES, .config_aneg = &marvell_config_aneg, .read_status = &marvell_read_status, .ack_interrupt = &marvell_ack_interrupt, .config_intr = &marvell_config_intr, };
Those & should not be there I think.
Futhermore I think each specific PHY type should have its own CONFIG_ #define to reduce code.
Jocke
In the much-talked-about-but-little-seen upcoming PHY library, each manufacturer has its own source file (and of course CONFIG_), just like Linux
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