From 8ca8d7665d671e10d72b8fcb4d69121d75f7906e Mon Sep 17 00:00:00 2001 From: Eric Biederman Date: Tue, 22 Apr 2003 19:02:15 +0000 Subject: - Initial checkin of the freebios2 tree git-svn-id: svn://svn.coreboot.org/coreboot/trunk@784 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1 --- src/sdram/generic_sdram.c | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 src/sdram/generic_sdram.c (limited to 'src/sdram/generic_sdram.c') diff --git a/src/sdram/generic_sdram.c b/src/sdram/generic_sdram.c new file mode 100644 index 0000000000..be5ae87407 --- /dev/null +++ b/src/sdram/generic_sdram.c @@ -0,0 +1,35 @@ +void sdram_no_memory(void) +{ + print_err("No memory!!\r\n"); + while(1) { + hlt(); + } +} + +/* Setup SDRAM */ +void sdram_initialize(void) +{ + print_debug("Ram1\r\n"); + /* Set the registers we can set once to reasonable values */ + sdram_set_registers(); + + print_debug("Ram2\r\n"); + /* Now setup those things we can auto detect */ + sdram_set_spd_registers(); + + print_debug("Ram3\r\n"); + /* Now that everything is setup enable the SDRAM. + * Some chipsets do the work for use while on others + * we need to it by hand. + */ + sdram_enable(); + + print_debug("Ram4\r\n"); + sdram_first_normal_reference(); + + print_debug("Ram5\r\n"); + sdram_enable_refresh(); + sdram_special_finishup(); + + print_debug("Ram6\r\n"); +} -- cgit v1.2.3