diff options
author | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2013-10-15 17:19:41 +0300 |
---|---|---|
committer | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2014-01-15 15:29:52 +0100 |
commit | cb08e169cf959333206ef69d8aa82808ef797eb7 (patch) | |
tree | f025f6d243e815821ae70d8febbdb415025d7dfa /src/northbridge/intel/i945/raminit.c | |
parent | bbf013c38fe76cf9cc107c41c17e4ac432847d28 (diff) |
CBMEM intel: Define get_top_of_ram() once per chipset
Only have one definition of get_top_of_ram() function and compile
it using __SIMPLE_DEVICE__ for both romstage and ramstage.
Implemented like this on intel/northbridge/gm45 already.
This also adds get_top_of_ram() to i945 ramstage.
Change-Id: Ia82cf6e47a4c929223ea3d8f233d606e6f5bf2f1
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3993
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
Diffstat (limited to 'src/northbridge/intel/i945/raminit.c')
-rw-r--r-- | src/northbridge/intel/i945/raminit.c | 33 |
1 files changed, 0 insertions, 33 deletions
diff --git a/src/northbridge/intel/i945/raminit.c b/src/northbridge/intel/i945/raminit.c index 046f5f8e3d..6943fd9d8e 100644 --- a/src/northbridge/intel/i945/raminit.c +++ b/src/northbridge/intel/i945/raminit.c @@ -3183,36 +3183,3 @@ void sdram_initialize(int boot_path, const u8 *spd_addresses) sdram_setup_processor_side(); } - -unsigned long get_top_of_ram(void) -{ - u32 tom; - - if (pci_read_config8(PCI_DEV(0, 0x0, 0), DEVEN) & ((1 << 4) | (1 << 3))) { - /* IGD enabled, get top of Memory from BSM register */ - tom = pci_read_config32(PCI_DEV(0,2,0), 0x5c); - } else { - tom = (pci_read_config8(PCI_DEV(0,0,0), TOLUD) & 0xf7) << 24; - } - - /* if TSEG enabled subtract size */ - switch(pci_read_config8(PCI_DEV(0, 0, 0), ESMRAM)) { - case 0x01: - /* 1MB TSEG */ - tom -= 0x10000; - break; - case 0x03: - /* 2MB TSEG */ - tom -= 0x20000; - break; - case 0x05: - /* 8MB TSEG */ - tom -= 0x80000; - break; - default: - /* TSEG either disabled or invalid */ - break; - } - return (unsigned long) tom; -} - |