| #include <stdint.h> |
| #include <stdlib.h> |
| #include <device/pci_def.h> |
| #include <arch/io.h> |
| #include <device/pnp_def.h> |
| #include <arch/romcc_io.h> |
| #include <arch/hlt.h> |
| #include <console/console.h> |
| #include "cpu/x86/bist.h" |
| #include "cpu/x86/msr.h" |
| #include <cpu/amd/lxdef.h> |
| #include "southbridge/amd/cs5536/cs5536.h" |
| #include <spd.h> |
| #include "southbridge/amd/cs5536/early_smbus.c" |
| #include "southbridge/amd/cs5536/early_setup.c" |
| #include "superio/winbond/w83627hf/early_serial.c" |
| |
| #define SERIAL_DEV PNP_DEV(0x2e, W83627HF_SP1) |
| |
| static inline int spd_read_byte(unsigned device, unsigned address) |
| { |
| return smbus_read_byte(device, address); |
| } |
| |
| #define ManualConf 0 /* Do automatic strapped PLL config */ |
| #define PLLMSRhi 0x00001490 /* manual settings for the PLL */ |
| #define PLLMSRlo 0x02000030 |
| |
| #include "northbridge/amd/lx/raminit.h" |
| #include "northbridge/amd/lx/pll_reset.c" |
| #include "northbridge/amd/lx/raminit.c" |
| #include "lib/generic_sdram.c" |
| #include "cpu/amd/geode_lx/cpureginit.c" |
| #include "cpu/amd/geode_lx/syspreinit.c" |
| #include "cpu/amd/geode_lx/msrinit.c" |
| |
| void main(unsigned long bist) |
| { |
| |
| static const struct mem_controller memctrl [] = { |
| {.channel0 = {DIMM0, DIMM1}} |
| }; |
| |
| SystemPreInit(); |
| msr_init(); |
| |
| cs5536_early_setup(); |
| |
| /* NOTE: must do this AFTER the early_setup! |
| * it is counting on some early MSR setup |
| * for cs5536 |
| */ |
| cs5536_disable_internal_uart(); |
| w83627hf_enable_serial(SERIAL_DEV, CONFIG_TTYS0_BASE); |
| console_init(); |
| |
| /* Halt if there was a built in self test failure */ |
| report_bist_failure(bist); |
| |
| pll_reset(ManualConf); |
| |
| cpuRegInit(0, DIMM0, DIMM1, DRAM_TERMINATED); |
| |
| sdram_initialize(1, memctrl); |
| |
| /* Switch from Cache as RAM to real RAM */ |
| /* There are two ways we could think about this. |
| 1. If we are using the romstage.inc ROMCC way, the stack is going to be re-setup in the code following this code. |
| Just wbinvd the stack to clear the cache tags. We don't care where the stack used to be. |
| 2. This file is built as a normal .c -> .o and linked in etc. The stack might be used to return etc. |
| That means we care about what is in the stack. If we are smart we set the CAR stack to the same location |
| as the rest of coreboot. If that is the case we can just do a wbinvd. The stack will be written into real |
| RAM that is now setup and we continue like nothing happened. If the stack is located somewhere other than |
| where LB would like it, you need to write some code to do a copy from cache to RAM |
| |
| We use method 1 on Norwich. |
| */ |
| post_code(0x02); |
| __asm__("wbinvd\n"); |
| print_err("Past wbinvd\n"); |
| /* we are finding the return does not work on this board. Explicitly call the label that is |
| * after the call to us. This is gross, but sometimes at this level it is the only way out |
| */ |
| void done_cache_as_ram_main(void); |
| done_cache_as_ram_main(); |
| } |