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Diffstat (limited to 'src/mainboard/tyan/s8226/dimmSpd.c')
-rw-r--r--src/mainboard/tyan/s8226/dimmSpd.c222
1 files changed, 0 insertions, 222 deletions
diff --git a/src/mainboard/tyan/s8226/dimmSpd.c b/src/mainboard/tyan/s8226/dimmSpd.c
deleted file mode 100644
index dc47674a10..0000000000
--- a/src/mainboard/tyan/s8226/dimmSpd.c
+++ /dev/null
@@ -1,222 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2011 - 2012 Advanced Micro Devices, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include "Porting.h"
-#include "AGESA.h"
-#include "amdlib.h"
-#include <arch/io.h>
-#include <arch/romcc_io.h>
-#include <device/pci_ids.h>
-
-AGESA_STATUS AmdMemoryReadSPD (UINT32 unused1, UINT32 unused2, AGESA_READ_SPD_PARAMS *info);
-#define DIMENSION(array)(sizeof (array)/ sizeof (array [0]))
-
-/* SP5100 GPIO 49-52 contoled by SMBUS PCI_Reg 0x52 */
-#define SP5100_GPIO37_46_47_48 0xA6
-#define SP5100_GPIO49_52 0x50
-
-/**
- * TODO not support all GPIO yet
- * @param reg -GPIO Cntrl Register
- * @param out -GPIO bitmap
- * @param out -GPIO enable bitmap
- * @return old setting
- */
-static u8 sp5100_set_gpio(u8 reg, u8 out, u8 enable)
-{
- u8 value, ret;
- device_t sm_dev = PCI_DEV(0, 0x14, 0); //SMBUS
-
- value = pci_read_config8(sm_dev, reg);
- ret = value;
- value &= ~(enable);
- value |= out;
- value &= ~(enable << 4);
- pci_write_config8(sm_dev, reg, value);
-
- return ret;
-}
-
-static void sp5100_restore_gpio(u8 reg, u8 value)
-{
- device_t sm_dev = PCI_DEV(0, 0x14, 0);
- pci_write_config8(sm_dev, reg, value);
-}
-
-/*-----------------------------------------------------------------------------
- *
- * SPD address table - porting required
- */
-static const UINT8 spdAddressLookup [2] [2] [3] = { // socket, channel, dimm
- /* socket 0 */
- {
- {0xA0, 0xA4, 0xA8},
- {0xA2, 0xA6, 0xAA},
- },
- /* socket 1 */
- {
- {0xA0, 0xA4, 0xA8},
- {0xA2, 0xA6, 0xAA},
- },
-};
-
-/*-----------------------------------------------------------------------------
- *
- * readSmbusByteData - read a single SPD byte from any offset
- */
-
-static int readSmbusByteData (int iobase, int address, char *buffer, int offset)
-{
- unsigned int status;
- UINT64 limit;
-
- address |= 1; // set read bit
-
- outb(0xFF, iobase + 0); // clear error status
- outb(0x1F, iobase + 1); // clear error status
- outb(offset, iobase + 3); // offset in eeprom
- outb(address, iobase + 4); // slave address and read bit
- outb(0x48, iobase + 2); // read byte command
-
- // time limit to avoid hanging for unexpected error status (should never happen)
- limit = __rdtsc () + 2000000000 / 10;
- for (;;)
- {
- status = inb(iobase);
- if (__rdtsc () > limit) break;
- if ((status & 2) == 0) continue; // SMBusInterrupt not set, keep waiting
- if ((status & 1) == 1) continue; // HostBusy set, keep waiting
- break;
- }
-
- buffer [0] = inb(iobase + 5);
- if (status == 2) status = 0; // check for done with no errors
- return status;
-}
-
-/*-----------------------------------------------------------------------------
- *
- * readSmbusByte - read a single SPD byte from the default offset
- * this function is faster function readSmbusByteData
- */
-
-static int readSmbusByte (int iobase, int address, char *buffer)
-{
- unsigned int status;
- UINT64 limit;
-
- outb(0xFF, iobase + 0); // clear error status
- outb(0x44, iobase + 2); // read command
-
- // time limit to avoid hanging for unexpected error status
- limit = __rdtsc () + 2000000000 / 10;
- for (;;)
- {
- status = inb(iobase);
- if (__rdtsc () > limit) break;
- if ((status & 2) == 0) continue; // SMBusInterrupt not set, keep waiting
- if ((status & 1) == 1) continue; // HostBusy set, keep waiting
- break;
- }
-
- buffer [0] = inb(iobase + 5);
- if (status == 2) status = 0; // check for done with no errors
- return status;
-}
-
-/*---------------------------------------------------------------------------
- *
- * readspd - Read one or more SPD bytes from a DIMM.
- * Start with offset zero and read sequentially.
- * Optimization relies on autoincrement to avoid
- * sending offset for every byte.
- * Reads 128 bytes in 7-8 ms at 400 KHz.
- */
-
-static int readspd (int iobase, int SmbusSlaveAddress, char *buffer, int count)
-{
- int index, error;
-
- /* read the first byte using offset zero */
- error = readSmbusByteData (iobase, SmbusSlaveAddress, buffer, 0);
- if (error) {
- return error;
- }
-
- /* read the remaining bytes using auto-increment for speed */
- for (index = 1; index < count; index++)
- {
- error = readSmbusByte (iobase, SmbusSlaveAddress, buffer + index);
- if (error)
- return error;
- }
-
- return 0;
-}
-
-static void setupFch (int ioBase)
-{
- outb(66000000 / 400000 / 4, ioBase + 0x0E); /* set SMBus clock to 400 KHz */
-}
-
-AGESA_STATUS AmdMemoryReadSPD (UINT32 unused1, UINT32 unused2, AGESA_READ_SPD_PARAMS *info)
-{
- AGESA_STATUS status;
- int spdAddress, ioBase;
- u8 i2c_channel;
- u8 backup;
- device_t sm_dev;
-
- if (info->SocketId >= DIMENSION (spdAddressLookup )) return AGESA_ERROR;
- if (info->MemChannelId >= DIMENSION (spdAddressLookup[0] )) return AGESA_ERROR;
- if (info->DimmId >= DIMENSION (spdAddressLookup[0][0])) return AGESA_ERROR;
- i2c_channel = (UINT8) info->SocketId;
-
- /* set IDTQS3253 i2c channel
- * GPIO49,48 control the S1,S0
- * S1 S0 true table
- * 0 0 channel 0
- * 0 1 channel 1
- * 1 0 channel 2 - Socket 0
- * 1 1 channel 3 - Socket 1
- * Note: Above is abstracted from Schemetic. But actually it seems to be other way.
- * 1 0 channel 2 - Socket 1
- * 1 1 channel 3 - Socket 0
- * Note: The DIMMs need to be plugged in from the farthest slot for each channel.
- */
- backup = sp5100_set_gpio(SP5100_GPIO49_52, 0x1, 0x1);
- sp5100_set_gpio(SP5100_GPIO37_46_47_48, (~i2c_channel & 1) << 3, 0x1 << 3);
-
- spdAddress = spdAddressLookup [info->SocketId] [info->MemChannelId] [info->DimmId];
- if (spdAddress == 0)
- return AGESA_ERROR;
-
- /*
- * SMBus Base Address was set during southbridge early setup.
- * e.g. sb700 IO mapped SMBUS_IO_BASE 0x6000, CIMX using 0xB00 as default
- */
- sm_dev = pci_locate_device(PCI_ID(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_SB700_SM), 0);
- ioBase = pci_read_config32(sm_dev, 0x90) & (0xFFFFFFF0);
- setupFch(ioBase);
-
- status = readspd(ioBase, spdAddress, (void *)info->Buffer, 256);
- sp5100_restore_gpio(SP5100_GPIO49_52, backup);
-
- return status;
-}
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