Multiple unrelated changes
* support for Winbond W39V040A
* Support for ATI SB400 (RS480 chipset)
* Support for Intel ICH7 (from Scott Tsai <scott.tsai@arima.com.tw>)
Corresponding to flashrom svn r51 and coreboot v2 svn r2229.
diff --git a/flash_enable.c b/flash_enable.c
index 91c5814..8334b6d 100644
--- a/flash_enable.c
+++ b/flash_enable.c
@@ -19,6 +19,9 @@
#include "lbtable.h"
#include "debug.h"
+// We keep this for the others.
+static struct pci_access *pacc;
+
static int enable_flash_sis630(struct pci_dev *dev, char *name)
{
char b;
@@ -98,7 +101,13 @@
return 0;
}
-static int enable_flash_ich4(struct pci_dev *dev, char *name)
+enum {
+ ICH4_BIOS_CNTL = 0x4e,
+ /* see page 375 of "Intel ICH7 External Design Specification"
+ * http://download.intel.com/design/chipsets/datashts/30701302.pdf */
+ ICH7_BIOS_CNTL = 0xdc,
+};
+static int enable_flash_ich(struct pci_dev *dev, char *name, int bios_cntl)
{
/* register 4e.b gets or'ed with one */
uint8_t old, new;
@@ -106,23 +115,33 @@
* that it is hard to argue that we should quit at this point.
*/
- old = pci_read_byte(dev, 0x4e);
+ old = pci_read_byte(dev, bios_cntl);
new = old | 1;
if (new == old)
return 0;
- pci_write_byte(dev, 0x4e, new);
+ pci_write_byte(dev, bios_cntl, new);
- if (pci_read_byte(dev, 0x4e) != new) {
+ if (pci_read_byte(dev, bios_cntl) != new) {
printf("tried to set 0x%x to 0x%x on %s failed (WARNING ONLY)\n",
- 0x4e, new, name);
+ bios_cntl, new, name);
return -1;
}
return 0;
}
+static int enable_flash_ich4(struct pci_dev *dev, char *name)
+{
+ return enable_flash_ich(dev, name, ICH4_BIOS_CNTL);
+}
+
+static int enable_flash_ich7(struct pci_dev *dev, char *name)
+{
+ return enable_flash_ich(dev, name, ICH7_BIOS_CNTL);
+}
+
static int enable_flash_vt8235(struct pci_dev *dev, char *name)
{
uint8_t old, new, val;
@@ -305,6 +324,57 @@
return 0;
}
+static int enable_flash_sb400(struct pci_dev *dev, char *name)
+{
+ uint8_t tmp;
+
+ struct pci_filter f;
+ struct pci_dev *smbusdev;
+
+ /* get io privilege access */
+ if (iopl(3) != 0) {
+ perror("Can not set io priviliage");
+ exit(1);
+ }
+
+ /* then look for the smbus device */
+ pci_filter_init((struct pci_access *) 0, &f);
+ f.vendor = 0x1002;
+ f.device = 0x4372;
+
+ for (smbusdev = pacc->devices; smbusdev; smbusdev = smbusdev->next) {
+ if (pci_filter_match(&f, smbusdev)) {
+ break;
+ }
+ }
+
+ if(!smbusdev) {
+ perror("smbus device not found. aborting\n");
+ exit(1);
+ }
+
+ // enable some smbus stuff
+ tmp=pci_read_byte(smbusdev, 0x79);
+ tmp|=0x01;
+ pci_write_byte(smbusdev, 0x79, tmp);
+
+ // change southbridge
+ tmp=pci_read_byte(dev, 0x48);
+ tmp|=0x21;
+ pci_write_byte(dev, 0x48, tmp);
+
+ // now become a bit silly.
+ tmp=inb(0xc6f);
+ outb(tmp,0xeb);
+ outb(tmp, 0xeb);
+ tmp|=0x40;
+ outb(tmp, 0xc6f);
+ outb(tmp, 0xeb);
+ outb(tmp, 0xeb);
+
+ return 0;
+}
+
typedef struct penable {
unsigned short vendor, device;
char *name;
@@ -316,24 +386,29 @@
{0x8086, 0x2480, "E7500", enable_flash_e7500},
{0x8086, 0x24c0, "ICH4", enable_flash_ich4},
{0x8086, 0x24d0, "ICH5", enable_flash_ich4},
+ {0x8086, 0x27b8, "ICH7", enable_flash_ich7},
{0x1106, 0x8231, "VT8231", enable_flash_vt8231},
{0x1106, 0x3177, "VT8235", enable_flash_vt8235},
{0x1078, 0x0100, "CS5530", enable_flash_cs5530},
{0x100b, 0x0510, "SC1100", enable_flash_sc1100},
{0x1039, 0x0008, "SIS5595", enable_flash_sis5595},
{0x1022, 0x7468, "AMD8111", enable_flash_amd8111},
+ // this fallthrough looks broken.
{0x10de, 0x0050, "NVIDIA CK804", enable_flash_ck804}, // LPC
{0x10de, 0x0051, "NVIDIA CK804", enable_flash_ck804}, // Pro
{0x10de, 0x00d3, "NVIDIA CK804", enable_flash_ck804}, // Slave, should not be here, to fix known bug for A01.
+ {0x1002, 0x4377, "ATI SB400", enable_flash_sb400}, // ATI Technologies Inc IXP SB400 PCI-ISA Bridge (rev 80)
};
static int mbenable_island_aruma(void)
{
-#define EFIR 0x2e // Exteneded function index register, either 0x2e or 0x4e
-#define EFDR EFIR + 1 // Extended function data register, one plus the index reg.
+#define EFIR 0x2e /* Extended function index register, either 0x2e or 0x4e */
+#define EFDR EFIR + 1 /* Extended function data register, one plus the index reg. */
char b;
-// Disable the flash write protect. The flash write protect is
-// connected to the WinBond w83627hf GPIO 24.
+
+/* Disable the flash write protect. The flash write protect is
+ * connected to the WinBond w83627hf GPIO 24.
+ */
/* get io privilege access winbond config space */
if (iopl(3) != 0) {
@@ -393,7 +468,6 @@
int enable_flash_write()
{
int i;
- struct pci_access *pacc;
struct pci_dev *dev = 0;
FLASH_ENABLE *enable = 0;