Author: hailfinger
Date: Sun Jan 17 00:45:25 2016
New Revision: 1916
URL: http://flashrom.org/trac/flashrom/changeset/1916

Log:
Add atapromise programmer

Supported controllers are Promise PDC20262 (FastTrak66/Ultra66),
PDC20265 (FastTrak100 Lite/Ultra100), PDC20267 (FastTrak100/Ultra100).
At least the Ultra100 only has address lines A0-A14 wired up, limiting
addressable chip size to 32 kB. The flash chips mounted on those
controllers usually is 128 kB, i.e. parts of the flash chip are
inaccessible. As a workaround, the driver implicitly truncates the
size of all flash chips to 32 kB. Works well for the factory installed
flash.
Do NOT use as a generic programmer for chips >32 kB.

Signed-off-by: Joseph C. Lehner <[email protected]>
Acked-by: Carl-Daniel Hailfinger <[email protected]>
Acked-by: Urja Rannikko <[email protected]>

Added:
   trunk/atapromise.c
Modified:
   trunk/Makefile
   trunk/flashrom.8.tmpl
   trunk/flashrom.c
   trunk/programmer.h

Modified: trunk/Makefile
==============================================================================
--- trunk/Makefile      Sat Jan 16 19:50:27 2016        (r1915)
+++ trunk/Makefile      Sun Jan 17 00:45:25 2016        (r1916)
@@ -227,6 +227,11 @@
 else
 override CONFIG_ATAVIA = no
 endif
+ifeq ($(CONFIG_ATAPROMISE), yes)
+UNSUPPORTED_FEATURES += CONFIG_ATAPROMISE=yes
+else
+override CONFIG_ATAPROMISE = no
+endif
 ifeq ($(CONFIG_IT8212), yes)
 UNSUPPORTED_FEATURES += CONFIG_IT8212=yes
 else
@@ -449,6 +454,9 @@
 # VIA VT6421A LPC memory support
 CONFIG_ATAVIA ?= yes
 
+# Promise ATA controller support.
+CONFIG_ATAPROMISE ?= no
+
 # Always enable FT2232 SPI dongles for now.
 CONFIG_FT2232_SPI ?= yes
 
@@ -626,6 +634,12 @@
 NEED_PCI := yes
 endif
 
+ifeq ($(CONFIG_ATAPROMISE), yes)
+FEATURE_CFLAGS += -D'CONFIG_ATAPROMISE=1'
+PROGRAMMER_OBJS += atapromise.o
+NEED_PCI := yes
+endif
+
 ifeq ($(CONFIG_IT8212), yes)
 FEATURE_CFLAGS += -D'CONFIG_IT8212=1'
 PROGRAMMER_OBJS += it8212.o

Added: trunk/atapromise.c
==============================================================================
--- /dev/null   00:00:00 1970   (empty, because file is newly added)
+++ trunk/atapromise.c  Sun Jan 17 00:45:25 2016        (r1916)
@@ -0,0 +1,177 @@
+/*
+ * This file is part of the flashrom project.
+ *
+ * Copyright (C) 2015 Joseph C. Lehner <[email protected]>
+ *
+ * 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; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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
+ */
+
+#if defined(__i386__) || defined(__x86_64__)
+
+#include <string.h>
+#include <stdlib.h>
+#include "flash.h"
+#include "programmer.h"
+#include "hwaccess.h"
+
+#define MAX_ROM_DECODE (32 * 1024)
+#define ADDR_MASK (MAX_ROM_DECODE - 1)
+
+/*
+ * In the absence of any public docs on the PDC2026x family, this programmer 
was created through a mix of
+ * reverse-engineering and trial and error.
+ *
+ * The only device tested is an Ultra100 controller, but the logic for 
programming the other 2026x controllers
+ * is the same, so it should, in theory, work for those as well.
+ *
+ * While the tested Ultra100 controller used a 128 kB MX29F001T chip, A16 and 
A15 showed continuity to ground,
+ * thus limiting the the programmer on this card to 32 kB. Without other 
controllers to test this programmer on,
+ * this is currently a hard limit. Note that ROM files for these controllers 
are 16 kB only.
+ *
+ * Since flashrom does not support accessing flash chips larger than the size 
limit of the programmer (the
+ * tested Ultra100 uses a 128 kB MX29F001T chip), the chip size is hackishly 
adjusted in atapromise_limit_chip.
+ */
+
+static uint32_t io_base_addr = 0;
+static uint32_t rom_base_addr = 0;
+
+static uint8_t *atapromise_bar = NULL;
+static size_t rom_size = 0;
+
+const struct dev_entry ata_promise[] = {
+       {0x105a, 0x4d38, NT, "Promise", "PDC20262 (FastTrak66/Ultra66)"},
+       {0x105a, 0x0d30, NT, "Promise", "PDC20265 (FastTrak100 Lite/Ultra100)"},
+       {0x105a, 0x4d30, OK, "Promise", "PDC20267 (FastTrak100/Ultra100)"},
+       {0},
+};
+
+static void atapromise_chip_writeb(const struct flashctx *flash, uint8_t val, 
chipaddr addr);
+static uint8_t atapromise_chip_readb(const struct flashctx *flash, const 
chipaddr addr);
+
+static const struct par_master par_master_atapromise = {
+               .chip_readb             = atapromise_chip_readb,
+               .chip_readw             = fallback_chip_readw,
+               .chip_readl             = fallback_chip_readl,
+               .chip_readn             = fallback_chip_readn,
+               .chip_writeb            = atapromise_chip_writeb,
+               .chip_writew            = fallback_chip_writew,
+               .chip_writel            = fallback_chip_writel,
+               .chip_writen            = fallback_chip_writen,
+};
+
+void *atapromise_map(const char *descr, uintptr_t phys_addr, size_t len)
+{
+       /* In case fallback_map ever returns something other than NULL. */
+       return NULL;
+}
+
+static void atapromise_limit_chip(struct flashchip *chip)
+{
+       static uint32_t last_model_id = 0;
+       unsigned int i, size;
+
+       if (chip->model_id == last_model_id)
+               return;
+
+       size = chip->total_size * 1024;
+       if (size > rom_size) {
+               /* Undefine all block_erasers that don't operate on the whole 
chip,
+                * and adjust the eraseblock size of the one that does.
+                */
+               for (i = 0; i < NUM_ERASEFUNCTIONS; ++i) {
+                       if (chip->block_erasers[i].eraseblocks[0].size != size) 
{
+                               chip->block_erasers[i].eraseblocks[0].count = 0;
+                               chip->block_erasers[i].block_erase = NULL;
+                       } else {
+                               chip->block_erasers[i].eraseblocks[0].size = 
rom_size;
+                               break;
+                       }
+               }
+
+               if (i != NUM_ERASEFUNCTIONS) {
+                       chip->total_size = rom_size / 1024;
+                       if (chip->page_size > rom_size)
+                               chip->page_size = rom_size;
+               } else {
+                       msg_pdbg("Failed to adjust size of chip \"%s\" (%d 
kB).\n", chip->name,
+                                chip->total_size);
+               }
+       }
+
+       last_model_id = chip->model_id;
+}
+
+int atapromise_init(void)
+{
+       struct pci_dev *dev = NULL;
+
+       if (rget_io_perms())
+               return 1;
+
+       dev = pcidev_init(ata_promise, PCI_BASE_ADDRESS_4);
+       if (!dev)
+               return 1;
+
+       io_base_addr = pcidev_readbar(dev, PCI_BASE_ADDRESS_4) & 0xfffe;
+       if (!io_base_addr) {
+               return 1;
+       }
+
+       /* Not exactly sure what this does, because flashing seems to work
+        * well without it. However, PTIFLASH does it, so we do it too.
+        */
+       OUTB(1, io_base_addr + 0x10);
+
+       rom_base_addr = pcidev_readbar(dev, PCI_BASE_ADDRESS_5);
+       if (!rom_base_addr) {
+               msg_pdbg("Failed to read BAR5\n");
+               return 1;
+       }
+
+       rom_size = dev->rom_size > MAX_ROM_DECODE ? MAX_ROM_DECODE : 
dev->rom_size;
+       atapromise_bar = (uint8_t*)rphysmap("Promise", rom_base_addr, rom_size);
+       if (atapromise_bar == ERROR_PTR) {
+               return 1;
+       }
+
+       max_rom_decode.parallel = rom_size;
+       register_par_master(&par_master_atapromise, BUS_PARALLEL);
+
+       msg_pwarn("Do not use this device as a generic programmer. It will 
leave anything outside\n"
+                 "the first %zu kB of the flash chip in an undefined state. It 
works fine for the\n"
+                 "purpose of updating the firmware of this device (padding may 
neccessary).\n",
+                 rom_size / 1024);
+
+       return 0;
+}
+
+static void atapromise_chip_writeb(const struct flashctx *flash, uint8_t val, 
chipaddr addr)
+{
+       uint32_t data;
+
+       atapromise_limit_chip(flash->chip);
+       data = (rom_base_addr + (addr & ADDR_MASK)) << 8 | val;
+       OUTL(data, io_base_addr + 0x14);
+}
+
+static uint8_t atapromise_chip_readb(const struct flashctx *flash, const 
chipaddr addr)
+{
+       atapromise_limit_chip(flash->chip);
+       return pci_mmio_readb(atapromise_bar + (addr & ADDR_MASK));
+}
+
+#else
+#error PCI port I/O access is not supported on this architecture yet.
+#endif

Modified: trunk/flashrom.8.tmpl
==============================================================================
--- trunk/flashrom.8.tmpl       Sat Jan 16 19:50:27 2016        (r1915)
+++ trunk/flashrom.8.tmpl       Sun Jan 17 00:45:25 2016        (r1916)
@@ -233,6 +233,8 @@
 .sp
 .BR "* atavia" " (for flash ROMs on VIA VT6421A SATA controllers)"
 .sp
+.BR "* atapromise" " (for flash ROMs on Promise PDC2026x ATA/RAID controllers)"
+.sp
 .BR "* it8212" " (for flash ROMs on ITE IT8212F ATA/RAID controller)"
 .sp
 .BR "* ft2232_spi" " (for SPI flash ROMs attached to an FT2232/FT4232H/FT232H 
family \
@@ -636,7 +638,7 @@
 .SS
 .BR "nic3com" , " nicrealtek" , " nicnatsemi" , " nicintel", " 
nicintel_eeprom"\
 , " nicintel_spi" , " gfxnvidia" , " ogp_spi" , " drkaiser" , " satasii"\
-, " satamv" , " atahpt", " atavia " and " it8212 " programmers
+, " satamv" , " atahpt", " atavia ", " atapromise " and " it8212 " programmers
 .IP
 These programmers have an option to specify the PCI address of the card
 your want to use, which must be specified if more than one card supported
@@ -669,6 +671,13 @@
 For more information please see
 .URLB https://flashrom.org/VT6421A "its wiki page" .
 .SS
+.BR "atapromise " programmer
+.IP
+This programmer is currently limited to 32 kB, regardless of the actual size 
of the flash chip. This stems
+from the fact that, on the tested device (a Promise Ultra100), not all of the 
chip's address lines were
+actually connected. You may use this programmer to flash firmware updates, 
since these are only 16 kB in
+size (padding to 32 kB is required).
+.SS
 .BR "nicintel_eeprom " programmer
 .IP
 This is the first programmer module in flashrom that does not provide access 
to NOR flash chips but EEPROMs
@@ -1059,8 +1068,8 @@
 .BR satasii ", " nicintel ", " nicintel_eeprom " and " nicintel_spi
 need PCI configuration space read access and raw memory access.
 .sp
-.B satamv
-needs PCI configuration space read access, raw I/O port access and raw memory
+.BR satamv " and " atapromise
+need PCI configuration space read access, raw I/O port access and raw memory
 access.
 .sp
 .B serprog
@@ -1076,7 +1085,7 @@
 needs no access permissions at all.
 .sp
 .BR internal ", " nic3com ", " nicrealtek ", " nicnatsemi ", "
-.BR gfxnvidia ", " drkaiser ", " satasii ", " satamv ", " atahpt" and " atavia
+.BR gfxnvidia ", " drkaiser ", " satasii ", " satamv ", " atahpt ", " atavia " 
and " atapromise
 have to be run as superuser/root, and need additional raw access permission.
 .sp
 .BR serprog ", " buspirate_spi ", " dediprog ", " usbblaster_spi ", " 
ft2232_spi " and " pickit2_spi

Modified: trunk/flashrom.c
==============================================================================
--- trunk/flashrom.c    Sat Jan 16 19:50:27 2016        (r1915)
+++ trunk/flashrom.c    Sun Jan 17 00:45:25 2016        (r1916)
@@ -182,6 +182,18 @@
        },
 #endif
 
+#if CONFIG_ATAPROMISE == 1
+       {
+               .name                   = "atapromise",
+               .type                   = PCI,
+               .devs.dev               = ata_promise,
+               .init                   = atapromise_init,
+               .map_flash_region       = atapromise_map,
+               .unmap_flash_region     = fallback_unmap,
+               .delay                  = internal_delay,
+       },
+#endif
+
 #if CONFIG_IT8212 == 1
        {
                .name                   = "it8212",

Modified: trunk/programmer.h
==============================================================================
--- trunk/programmer.h  Sat Jan 16 19:50:27 2016        (r1915)
+++ trunk/programmer.h  Sun Jan 17 00:45:25 2016        (r1916)
@@ -57,6 +57,9 @@
 #if CONFIG_ATAVIA == 1
        PROGRAMMER_ATAVIA,
 #endif
+#if CONFIG_ATAPROMISE == 1
+       PROGRAMMER_ATAPROMISE,
+#endif
 #if CONFIG_IT8212 == 1
        PROGRAMMER_IT8212,
 #endif
@@ -460,6 +463,13 @@
 extern const struct dev_entry ata_via[];
 #endif
 
+/* atapromise.c */
+#if CONFIG_ATAPROMISE == 1
+int atapromise_init(void);
+void *atapromise_map(const char *descr, uintptr_t phys_addr, size_t len);
+extern const struct dev_entry ata_promise[];
+#endif
+
 /* it8212.c */
 #if CONFIG_IT8212 == 1
 int it8212_init(void);

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