Updated Fintek Super I/O detection/handling code.

Note: This code contains no SPI support whatsoever, that will happen in
a followup patch.

A verbose log would be appreciated.

TODO:
- Kill duplicated code (conf mode enter/exit)
- File name: fintek_spi.c, sio_fintek.c, f718xx_spi.c, ...?
- Should we check for known IDs in probe_superio_fintek() as well even
though we're 100% sure about the vendor? What about Fintek devices which
are attached to the LPC bus but are not Super I/Os?
- Ask Hans de Goede for a F71889E datasheet.

Signed-off-by: Carl-Daniel Hailfinger <[email protected]>

Index: flashrom-fintek_sio/Makefile
===================================================================
--- flashrom-fintek_sio/Makefile        (Revision 1575)
+++ flashrom-fintek_sio/Makefile        (Arbeitskopie)
@@ -404,7 +404,7 @@
 PROGRAMMER_OBJS += processor_enable.o chipset_enable.o board_enable.o 
cbtable.o dmi.o internal.o
 ifeq ($(ARCH), x86)
 PROGRAMMER_OBJS += it87spi.o it85spi.o sb600spi.o wbsio_spi.o mcp6x_spi.o
-PROGRAMMER_OBJS += ichspi.o ich_descriptors.o
+PROGRAMMER_OBJS += ichspi.o ich_descriptors.o fintek_spi.o
 else
 endif
 NEED_PCI := yes
Index: flashrom-fintek_sio/internal.c
===================================================================
--- flashrom-fintek_sio/internal.c      (Revision 1575)
+++ flashrom-fintek_sio/internal.c      (Arbeitskopie)
@@ -110,6 +110,7 @@
         */
        //probe_superio_smsc();
        probe_superio_ite();
+       probe_superio_fintek();
 }
 
 int superio_count = 0;
@@ -319,6 +320,7 @@
         * IT87* Parallel write enable.
         */
        init_superio_ite();
+       init_superio_fintek();
 #endif
 
        board_flash_enable(lb_vendor, lb_part);
Index: flashrom-fintek_sio/programmer.h
===================================================================
--- flashrom-fintek_sio/programmer.h    (Revision 1575)
+++ flashrom-fintek_sio/programmer.h    (Arbeitskopie)
@@ -295,6 +295,7 @@
 #define SUPERIO_VENDOR_NONE    0x0
 #define SUPERIO_VENDOR_ITE     0x1
 #define SUPERIO_VENDOR_WINBOND 0x2
+#define SUPERIO_VENDOR_FINTEK  0x4
 #endif
 #if NEED_PCI == 1
 struct pci_filter;
@@ -542,6 +543,14 @@
 int default_spi_write_aai(struct flashctx *flash, uint8_t *buf, unsigned int 
start, unsigned int len);
 int register_spi_programmer(const struct spi_programmer *programmer);
 
+/* fintek_spi.c */
+#if CONFIG_INTERNAL == 1
+void enter_conf_mode_fintek_ite_8787(uint16_t port);
+void exit_conf_mode_winbond_fintek_ite_8787(uint16_t port);
+void probe_superio_fintek(void);
+int init_superio_fintek(void);
+#endif
+
 /* The following enum is needed by ich_descriptor_tool and ich* code. */
 enum ich_chipset {
        CHIPSET_ICH_UNKNOWN,
Index: flashrom-fintek_sio/fintek_spi.c
===================================================================
--- flashrom-fintek_sio/fintek_spi.c    (Revision 0)
+++ flashrom-fintek_sio/fintek_spi.c    (Revision 0)
@@ -0,0 +1,141 @@
+/*
+ * This file is part of the flashrom project.
+ *
+ * Copyright (C) 2010 Sean Nelson <[email protected]>
+ * Copyright (C) 2011,2012 Carl-Daniel Hailfinger
+ *
+ * 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
+ */
+
+/*
+ * Contains the Fintek F7188x SPI specific routines
+ *
+ */
+
+#if defined(__i386__) || defined(__x86_64__)
+
+#include <string.h>
+#include <stdlib.h>
+#include "flash.h"
+#include "chipdrivers.h"
+#include "programmer.h"
+#include "hwaccess.h"
+
+#define FINTEK_SUPERIO_PORT1   0x2e
+#define FINTEK_SUPERIO_PORT2   0x4e
+
+/* Helper functions for Fintek F7188x Super I/O chips */
+#define DEVICE_ID_BYTE1_REG    0x20
+#define DEVICE_ID_BYTE2_REG    0x21
+
+#define VENDOR_ID_BYTE1_REG    0x23
+#define VENDOR_ID_BYTE2_REG    0x24
+
+#define FINTEK_VENDOR_ID       0x1934
+
+void enter_conf_mode_fintek_ite_8787(uint16_t port)
+{
+       OUTB(0x87, port);
+       OUTB(0x87, port);
+}
+
+void exit_conf_mode_winbond_fintek_ite_8787(uint16_t port)
+{
+       OUTB(0xaa, port);
+}
+
+uint16_t probe_vid_fintek(uint16_t port)
+{
+       uint16_t id;
+
+       enter_conf_mode_fintek_ite_8787(port);
+       id = sio_read(port, VENDOR_ID_BYTE1_REG) << 8;
+       id |= sio_read(port, VENDOR_ID_BYTE2_REG);
+       exit_conf_mode_winbond_fintek_ite_8787(port);
+       return id;
+}
+
+uint16_t probe_id_fintek(uint16_t port)
+{
+       uint16_t id;
+
+       enter_conf_mode_fintek_ite_8787(port);
+       id = sio_read(port, DEVICE_ID_BYTE1_REG) << 8;
+       id |= sio_read(port, DEVICE_ID_BYTE2_REG);
+       exit_conf_mode_winbond_fintek_ite_8787(port);
+       return id;
+}
+
+void probe_superio_fintek(void)
+{
+       struct superio s = {};
+       uint16_t fintek_ports[] = {FINTEK_SUPERIO_PORT1, FINTEK_SUPERIO_PORT2, 
0};
+       uint16_t *i = fintek_ports;
+
+       s.vendor = SUPERIO_VENDOR_FINTEK;
+       for (; *i; i++) {
+               s.port = *i;
+               if (probe_vid_fintek(s.port) != FINTEK_VENDOR_ID)
+                       continue;
+               s.model = probe_id_fintek(s.port);
+               // FIXME: Should we explicitly check for known IDs?
+               msg_pinfo("Found Fintek Super I/O, ID 0x%04hx.\n", s.model);
+               register_superio(s);
+               break;
+       }
+
+       return;
+}
+
+
+int init_superio_fintek(void)
+{
+       int i;
+       int ret = 0;
+
+       for (i = 0; i < superio_count; i++) {
+               if (superios[i].vendor != SUPERIO_VENDOR_FINTEK)
+                       continue;
+
+               switch (superios[i].model) {
+               case 0x0601: /* F71862FG / F71863FG */
+               case 0x0541: /* F71882F / F71883F / F71887 */
+               case 0x0723: /* F71889F */
+               case 0x0704: /* F81865F */
+                       msg_pdbg("Super I/O ID 0x%04hx is SPI capable. TODO: 
Check if SPI is active.\n",
+                                superios[i].model);
+                       break;
+               case 0x0909: /* F71889E, only known person with datasheet is 
Hans de Goede */
+               case 0x1010: /* F81867, seems to have builtin flash, but SPI is 
only slave functionality. */
+                       /* Characteristics unknown. */
+                       msg_pdbg("Super I/O ID 0x%04hx may be SPI capable. 
TODO: Find a datasheet.\n",
+                                superios[i].model);
+                       break;
+               case 0x1001: /* F71808A */
+               case 0x0901: /* F71808E */
+               case 0x0507: /* F71858DG */
+               case 0x0814: /* F71869F */
+               case 0x0719: /* F71869A */
+               case 0x0341: /* F71872F */
+               case 0x1005: /* F71889A */
+                       /* Known not to have any flash translation features. */
+               default:
+                       msg_pdbg("Super I/O ID 0x%04hx is not on the list of 
flash capable controllers.\n",
+                                superios[i].model);
+               }
+       }
+       return ret;
+}
+
+#endif


-- 
http://www.hailfinger.org/


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