diff options
author | Uwe Hermann <uwe@hermann-uwe.de> | 2006-10-27 11:40:01 +0000 |
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committer | Uwe Hermann <uwe@hermann-uwe.de> | 2006-10-27 11:40:01 +0000 |
commit | cf201870797d542915b2c52fa596b27c1616a821 (patch) | |
tree | 91ce83bc599b0cf58c175da717369d003b062fb2 /src/northbridge/intel/E7525/northbridge.c | |
parent | 586470c646ac1b8753858b013b268f049a28b818 (diff) |
svn mv src/northbridge/intel/E7520 src/northbridge/intel/e7520
svn mv src/northbridge/intel/E7525 src/northbridge/intel/e7525
Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2478 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src/northbridge/intel/E7525/northbridge.c')
-rw-r--r-- | src/northbridge/intel/E7525/northbridge.c | 270 |
1 files changed, 0 insertions, 270 deletions
diff --git a/src/northbridge/intel/E7525/northbridge.c b/src/northbridge/intel/E7525/northbridge.c deleted file mode 100644 index 2fa6678c0e..0000000000 --- a/src/northbridge/intel/E7525/northbridge.c +++ /dev/null @@ -1,270 +0,0 @@ -#include <console/console.h> -#include <arch/io.h> -#include <stdint.h> -#include <device/device.h> -#include <device/pci.h> -#include <device/pci_ids.h> -#include <device/hypertransport.h> -#include <stdlib.h> -#include <string.h> -#include <bitops.h> -#include <cpu/cpu.h> -#include "chip.h" -#include "northbridge.h" -#include "e7525.h" - - -static unsigned int max_bus; - -static void ram_resource(device_t dev, unsigned long index, - unsigned long basek, unsigned long sizek) -{ - struct resource *resource; - - resource = new_resource(dev, index); - resource->base = ((resource_t)basek) << 10; - resource->size = ((resource_t)sizek) << 10; - resource->flags = IORESOURCE_MEM | IORESOURCE_CACHEABLE | \ - IORESOURCE_FIXED | IORESOURCE_STORED | IORESOURCE_ASSIGNED; -} - - -static void pci_domain_read_resources(device_t dev) -{ - struct resource *resource; - - /* Initialize the system wide io space constraints */ - resource = new_resource(dev, IOINDEX_SUBTRACTIVE(0,0)); - resource->base = 0; - resource->size = 0; - resource->align = 0; - resource->gran = 0; - resource->limit = 0xffffUL; - resource->flags = IORESOURCE_IO | IORESOURCE_SUBTRACTIVE | IORESOURCE_ASSIGNED; - - /* Initialize the system wide memory resources constraints */ - resource = new_resource(dev, IOINDEX_SUBTRACTIVE(1,0)); - resource->base = 0; - resource->size = 0; - resource->align = 0; - resource->gran = 0; - resource->limit = 0xffffffffUL; - resource->flags = IORESOURCE_MEM | IORESOURCE_SUBTRACTIVE | IORESOURCE_ASSIGNED; -} - -static void tolm_test(void *gp, struct device *dev, struct resource *new) -{ - struct resource **best_p = gp; - struct resource *best; - best = *best_p; - if (!best || (best->base > new->base)) { - best = new; - } - *best_p = best; -} - -static uint32_t find_pci_tolm(struct bus *bus) -{ - struct resource *min; - uint32_t tolm; - min = 0; - search_bus_resources(bus, IORESOURCE_MEM, IORESOURCE_MEM, tolm_test, &min); - tolm = 0xffffffffUL; - if (min && tolm > min->base) { - tolm = min->base; - } - return tolm; -} - - -static void pci_domain_set_resources(device_t dev) -{ - device_t mc_dev; - uint32_t pci_tolm; - - pci_tolm = find_pci_tolm(&dev->link[0]); - -#if 1 - printk_debug("PCI mem marker = %x\n", pci_tolm); -#endif - /* FIXME Me temporary hack */ - if(pci_tolm > 0xe0000000) - pci_tolm = 0xe0000000; - /* Ensure pci_tolm is 128M aligned */ - pci_tolm &= 0xf8000000; - mc_dev = dev->link[0].children; - if (mc_dev) { - /* Figure out which areas are/should be occupied by RAM. - * This is all computed in kilobytes and converted to/from - * the memory controller right at the edges. - * Having different variables in different units is - * too confusing to get right. Kilobytes are good up to - * 4 Terabytes of RAM... - */ - uint16_t tolm_r, remapbase_r, remaplimit_r, remapoffset_r; - unsigned long tomk, tolmk; - unsigned long remapbasek, remaplimitk, remapoffsetk; - - /* Get the Top of Memory address, units are 128M */ - tomk = ((unsigned long)pci_read_config16(mc_dev, TOM)) << 17; - /* Compute the Top of Low Memory */ - tolmk = (pci_tolm & 0xf8000000) >> 10; - - if (tolmk >= tomk) { - /* The PCI hole does not overlap memory - * we won't use the remap window. - */ - tolmk = tomk; - remapbasek = 0x3ff << 16; - remaplimitk = 0 << 16; - remapoffsetk = 0 << 16; - } - else { - /* The PCI memory hole overlaps memory - * setup the remap window. - */ - /* Find the bottom of the remap window - * is it above 4G? - */ - remapbasek = 4*1024*1024; - if (tomk > remapbasek) { - remapbasek = tomk; - } - /* Find the limit of the remap window */ - remaplimitk = (remapbasek + (4*1024*1024 - tolmk) - (1 << 16)); - /* Find the offset of the remap window from tolm */ - remapoffsetk = remapbasek - tolmk; - } - /* Write the ram configruation registers, - * preserving the reserved bits. - */ - tolm_r = pci_read_config16(mc_dev, 0xc4); - tolm_r = ((tolmk >> 17) << 11) | (tolm_r & 0x7ff); - pci_write_config16(mc_dev, 0xc4, tolm_r); - - remapbase_r = pci_read_config16(mc_dev, 0xc6); - remapbase_r = (remapbasek >> 16) | (remapbase_r & 0xfc00); - pci_write_config16(mc_dev, 0xc6, remapbase_r); - - remaplimit_r = pci_read_config16(mc_dev, 0xc8); - remaplimit_r = (remaplimitk >> 16) | (remaplimit_r & 0xfc00); - pci_write_config16(mc_dev, 0xc8, remaplimit_r); - - remapoffset_r = pci_read_config16(mc_dev, 0xca); - remapoffset_r = (remapoffsetk >> 16) | (remapoffset_r & 0xfc00); - pci_write_config16(mc_dev, 0xca, remapoffset_r); - - /* Report the memory regions */ - ram_resource(dev, 3, 0, 640); - ram_resource(dev, 4, 768, tolmk - 768); - if (tomk > 4*1024*1024) { - ram_resource(dev, 5, 4096*1024, tomk - 4*1024*1024); - } - if (remaplimitk >= remapbasek) { - ram_resource(dev, 6, remapbasek, - (remaplimitk + 64*1024) - remapbasek); - } - } - assign_resources(&dev->link[0]); -} - -static unsigned int pci_domain_scan_bus(device_t dev, unsigned int max) -{ - max = pci_scan_bus(&dev->link[0], 0, 0xff, max); - if (max > max_bus) { - max_bus = max; - } - return max; -} - -static struct device_operations pci_domain_ops = { - .read_resources = pci_domain_read_resources, - .set_resources = pci_domain_set_resources, - .enable_resources = enable_childrens_resources, - .init = 0, - .scan_bus = pci_domain_scan_bus, - .ops_pci_bus = &pci_cf8_conf1, /* Do we want to use the memory mapped space here? */ -}; - -static void mc_read_resources(device_t dev) -{ - struct resource *resource; - - pci_dev_read_resources(dev); - - resource = new_resource(dev, 0xcf); - resource->base = 0xe0000000; - resource->size = max_bus * 4096*256; - resource->flags = IORESOURCE_MEM | IORESOURCE_FIXED | IORESOURCE_STORED | IORESOURCE_ASSIGNED; -} - -static void mc_set_resources(device_t dev) -{ - struct resource *resource, *last; - - last = &dev->resource[dev->resources]; - resource = find_resource(dev, 0xcf); - if (resource) { - report_resource_stored(dev, resource, "<mmconfig>"); - } - pci_dev_set_resources(dev); -} - -static void intel_set_subsystem(device_t dev, unsigned vendor, unsigned device) -{ - pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID, - ((device & 0xffff) << 16) | (vendor & 0xffff)); -} - -static struct pci_operations intel_pci_ops = { - .set_subsystem = intel_set_subsystem, -}; - -static struct device_operations mc_ops = { - .read_resources = mc_read_resources, - .set_resources = mc_set_resources, - .enable_resources = pci_dev_enable_resources, - .init = 0, - .scan_bus = 0, - .ops_pci = &intel_pci_ops, -}; - -static struct pci_driver mc_driver __pci_driver = { - .ops = &mc_ops, - .vendor = PCI_VENDOR_ID_INTEL, - .device = 0x359e, -}; - -static void cpu_bus_init(device_t dev) -{ - initialize_cpus(&dev->link[0]); -} - -static void cpu_bus_noop(device_t dev) -{ -} - -static struct device_operations cpu_bus_ops = { - .read_resources = cpu_bus_noop, - .set_resources = cpu_bus_noop, - .enable_resources = cpu_bus_noop, - .init = cpu_bus_init, - .scan_bus = 0, -}; - - -static void enable_dev(device_t dev) -{ - /* Set the operations if it is a special bus type */ - if (dev->path.type == DEVICE_PATH_PCI_DOMAIN) { - dev->ops = &pci_domain_ops; - } - else if (dev->path.type == DEVICE_PATH_APIC_CLUSTER) { - dev->ops = &cpu_bus_ops; - } -} - -struct chip_operations northbridge_intel_e7525_ops = { - CHIP_NAME("Intel E7525 Northbridge") - .enable_dev = enable_dev, -}; |