diff options
author | Cyrill Gorcunov <gorcunov@gmail.com> | 2007-03-06 05:39:45 -0500 |
---|---|---|
committer | David Woodhouse <dwmw2@infradead.org> | 2007-03-08 04:21:42 -0500 |
commit | dc164bbb4b5be9df4f249ab33576fa783c363b93 (patch) | |
tree | 2ed11a926af063840d6eee51e828b234b9270626 /drivers | |
parent | 180bfb31fef77815d56b875d4f28d353fdc87bf8 (diff) |
[MTD] ESB2 check for closed ROM window
Add checking for closed ROM window on Intel ESB2 Southbridge.
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/mtd/maps/esb2rom.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/mtd/maps/esb2rom.c b/drivers/mtd/maps/esb2rom.c index 0bc013fd66a3..aa64a4752781 100644 --- a/drivers/mtd/maps/esb2rom.c +++ b/drivers/mtd/maps/esb2rom.c | |||
@@ -30,7 +30,7 @@ | |||
30 | 30 | ||
31 | #define ROM_PROBE_STEP_SIZE (64*1024) /* 64KiB */ | 31 | #define ROM_PROBE_STEP_SIZE (64*1024) /* 64KiB */ |
32 | 32 | ||
33 | #define BIOS_CNTL 0xDC | 33 | #define BIOS_CNTL 0xDC |
34 | #define BIOS_LOCK_ENABLE 0x02 | 34 | #define BIOS_LOCK_ENABLE 0x02 |
35 | #define BIOS_WRITE_ENABLE 0x01 | 35 | #define BIOS_WRITE_ENABLE 0x01 |
36 | 36 | ||
@@ -145,7 +145,7 @@ static void esb2rom_cleanup(struct esb2rom_window *window) | |||
145 | } | 145 | } |
146 | 146 | ||
147 | static int __devinit esb2rom_init_one(struct pci_dev *pdev, | 147 | static int __devinit esb2rom_init_one(struct pci_dev *pdev, |
148 | const struct pci_device_id *ent) | 148 | const struct pci_device_id *ent) |
149 | { | 149 | { |
150 | static char *rom_probe_types[] = { "cfi_probe", "jedec_probe", NULL }; | 150 | static char *rom_probe_types[] = { "cfi_probe", "jedec_probe", NULL }; |
151 | struct esb2rom_window *window = &esb2rom_window; | 151 | struct esb2rom_window *window = &esb2rom_window; |
@@ -185,7 +185,7 @@ static int __devinit esb2rom_init_one(struct pci_dev *pdev, | |||
185 | /* Find a region continuous to the end of the ROM window */ | 185 | /* Find a region continuous to the end of the ROM window */ |
186 | window->phys = 0; | 186 | window->phys = 0; |
187 | pci_read_config_word(pdev, FWH_DEC_EN1, &word); | 187 | pci_read_config_word(pdev, FWH_DEC_EN1, &word); |
188 | printk(KERN_DEBUG "pci_read_config_byte : %x\n", word); | 188 | printk(KERN_DEBUG "pci_read_config_word : %x\n", word); |
189 | 189 | ||
190 | if ((word & FWH_8MiB) == FWH_8MiB) | 190 | if ((word & FWH_8MiB) == FWH_8MiB) |
191 | window->phys = 0xff400000; | 191 | window->phys = 0xff400000; |
@@ -212,6 +212,11 @@ static int __devinit esb2rom_init_one(struct pci_dev *pdev, | |||
212 | else if ((word & FWH_0_5MiB) == FWH_0_5MiB) | 212 | else if ((word & FWH_0_5MiB) == FWH_0_5MiB) |
213 | window->phys = 0xfff80000; | 213 | window->phys = 0xfff80000; |
214 | 214 | ||
215 | if (window->phys == 0) { | ||
216 | printk(KERN_ERR MOD_NAME ": Rom window is closed\n"); | ||
217 | goto out; | ||
218 | } | ||
219 | |||
215 | /* reserved 0x0020 and 0x0010 */ | 220 | /* reserved 0x0020 and 0x0010 */ |
216 | window->phys -= 0x400000UL; | 221 | window->phys -= 0x400000UL; |
217 | window->size = (0xffffffffUL - window->phys) + 1UL; | 222 | window->size = (0xffffffffUL - window->phys) + 1UL; |