| pmc551.c (7a9787e1eba95a166265e6a260cf30af04ef0a99) | pmc551.c (025dfdafe77f20b3890981a394774baab7b9c827) |
|---|---|
| 1/* 2 * PMC551 PCI Mezzanine Ram Device 3 * 4 * Author: 5 * Mark Ferrell <mferrell@mvista.com> 6 * Copyright 1999,2000 Nortel Networks 7 * 8 * License: --- 20 unchanged lines hidden (view full) --- 29 * Notes: 30 * Due to what I assume is more buggy SROM, the 64M PMC551 I 31 * have available claims that all 4 of its DRAM banks have 64MiB 32 * of ram configured (making a grand total of 256MiB onboard). 33 * This is slightly annoying since the BAR0 size reflects the 34 * aperture size, not the dram size, and the V370PDC supplies no 35 * other method for memory size discovery. This problem is 36 * mostly only relevant when compiled as a module, as the | 1/* 2 * PMC551 PCI Mezzanine Ram Device 3 * 4 * Author: 5 * Mark Ferrell <mferrell@mvista.com> 6 * Copyright 1999,2000 Nortel Networks 7 * 8 * License: --- 20 unchanged lines hidden (view full) --- 29 * Notes: 30 * Due to what I assume is more buggy SROM, the 64M PMC551 I 31 * have available claims that all 4 of its DRAM banks have 64MiB 32 * of ram configured (making a grand total of 256MiB onboard). 33 * This is slightly annoying since the BAR0 size reflects the 34 * aperture size, not the dram size, and the V370PDC supplies no 35 * other method for memory size discovery. This problem is 36 * mostly only relevant when compiled as a module, as the |
| 37 * unloading of the module with an aperture size smaller then | 37 * unloading of the module with an aperture size smaller than |
| 38 * the ram will cause the driver to detect the onboard memory 39 * size to be equal to the aperture size when the module is 40 * reloaded. Soooo, to help, the module supports an msize 41 * option to allow the specification of the onboard memory, and 42 * an asize option, to allow the specification of the aperture 43 * size. The aperture must be equal to or less then the memory 44 * size, the driver will correct this if you screw it up. This 45 * problem is not relevant for compiled in drivers as compiled --- 824 unchanged lines hidden --- | 38 * the ram will cause the driver to detect the onboard memory 39 * size to be equal to the aperture size when the module is 40 * reloaded. Soooo, to help, the module supports an msize 41 * option to allow the specification of the onboard memory, and 42 * an asize option, to allow the specification of the aperture 43 * size. The aperture must be equal to or less then the memory 44 * size, the driver will correct this if you screw it up. This 45 * problem is not relevant for compiled in drivers as compiled --- 824 unchanged lines hidden --- |