driver/intel/fsp20: move lb_framebuffer function
move lb_framebuffer function in soc/intel/apollolake to driver/intel/fsp20 so that fsp 2.0 bases soc's can use common lb_framebuffer function. Change-Id: If11bc7faa378a39cf7d4487f9095465a4df84853 Signed-off-by: Naresh G Solanki <naresh.solanki@intel.com> Reviewed-on: https://review.coreboot.org/16549 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins)
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@ -103,3 +103,38 @@ uintptr_t fsp_load_vbt(void)
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return (uintptr_t)vbt;
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}
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void lb_framebuffer(struct lb_header *header)
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{
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enum cb_err ret;
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struct lb_framebuffer *framebuffer;
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uintptr_t framebuffer_bar;
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/* Pci enumeration happens after silicon init.
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* After enumeration graphic framebuffer base may be relocated.
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* Get framebuffer base from soc.
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*/
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framebuffer_bar = fsp_soc_get_igd_bar();
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if (!framebuffer_bar) {
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printk(BIOS_ALERT, "Framebuffer BAR invalid\n");
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return;
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}
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framebuffer = (void *)lb_new_record(header);
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ret = fsp_fill_lb_framebuffer(framebuffer);
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if (ret != CB_SUCCESS) {
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printk(BIOS_ALERT, "FSP did not return a valid framebuffer\n");
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return;
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}
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/* Resource allocator can move the BAR around after FSP configures it */
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framebuffer->physical_address = framebuffer_bar;
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printk(BIOS_DEBUG, "Graphics framebuffer located at 0x%llx\n",
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framebuffer->physical_address);
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}
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__attribute__((weak)) uintptr_t fsp_soc_get_igd_bar(void)
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{
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return 0;
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}
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@ -77,6 +77,9 @@ enum cb_err fsp_validate_component(struct fsp_header *hdr,
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/* Load a vbt.bin file for graphics. Returns 0 if a valid VBT is not found. */
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uintptr_t fsp_load_vbt(void);
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/* Get igd framebuffer bar from SoC */
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uintptr_t fsp_soc_get_igd_bar(void);
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/*
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* Handle FSP reboot request status. Chipset/soc is expected to provide
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* chipset_handle_reset() that deals with reset type codes specific to given
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@ -22,37 +22,17 @@
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#include <device/device.h>
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#include <device/pci.h>
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#include <device/pci_ids.h>
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#include <soc/pci_devs.h>
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#include <soc/pci_ids.h>
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#include <soc/intel/common/opregion.h>
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static uintptr_t framebuffer_bar = (uintptr_t)NULL;
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void lb_framebuffer(struct lb_header *header)
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uintptr_t fsp_soc_get_igd_bar(void)
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{
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enum cb_err ret;
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struct lb_framebuffer *framebuffer;
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framebuffer = (void *)lb_new_record(header);
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ret = fsp_fill_lb_framebuffer(framebuffer);
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if (ret != CB_SUCCESS) {
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printk(BIOS_ALERT, "FSP did not return a valid framebuffer\n");
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return;
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}
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if (!framebuffer_bar) {
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printk(BIOS_ALERT, "Framebuffer BAR invalid (00:02.0 BAR2)\n");
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return;
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}
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/* Resource allocator can move the BAR around after FSP configures it */
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framebuffer->physical_address = framebuffer_bar;
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printk(BIOS_DEBUG, "Graphics framebuffer located at 0x%llx\n",
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framebuffer->physical_address);
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return find_resource(IGD_DEV, PCI_BASE_ADDRESS_2)->base;
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}
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static void igd_set_resources(struct device *dev)
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{
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framebuffer_bar = find_resource(dev, PCI_BASE_ADDRESS_2)->base;
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pci_dev_set_resources(dev);
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}
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@ -34,6 +34,9 @@
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#define NB_DEVFN _PCI_DEVFN(0, 0)
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#define NB_DEV_ROOT _PCI_DEV(0x0, 0)
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#define IGD_DEV _PCI_DEV(0x2, 0)
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#define IGD_DEVFN _PCI_DEVFN(0x2, 0)
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#define P2SB_DEV _PCI_DEV(0xd, 0)
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#define P2SB_DEVFN _PCI_DEVFN(0xd, 0)
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