From 16e9d459a09ae5833776e29926207d43d2fc9a02 Mon Sep 17 00:00:00 2001 From: Naresh G Solanki Date: Thu, 8 Sep 2016 22:27:04 +0530 Subject: 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 Reviewed-on: https://review.coreboot.org/16549 Reviewed-by: Aaron Durbin Tested-by: build bot (Jenkins) --- src/drivers/intel/fsp2_0/graphics.c | 35 +++++++++++++++++++++++++++++ src/drivers/intel/fsp2_0/include/fsp/util.h | 3 +++ 2 files changed, 38 insertions(+) (limited to 'src/drivers/intel') diff --git a/src/drivers/intel/fsp2_0/graphics.c b/src/drivers/intel/fsp2_0/graphics.c index 039202faa4..caf7bfa807 100644 --- a/src/drivers/intel/fsp2_0/graphics.c +++ b/src/drivers/intel/fsp2_0/graphics.c @@ -103,3 +103,38 @@ uintptr_t fsp_load_vbt(void) return (uintptr_t)vbt; } + +void lb_framebuffer(struct lb_header *header) +{ + enum cb_err ret; + struct lb_framebuffer *framebuffer; + uintptr_t framebuffer_bar; + + /* Pci enumeration happens after silicon init. + * After enumeration graphic framebuffer base may be relocated. + * Get framebuffer base from soc. + */ + framebuffer_bar = fsp_soc_get_igd_bar(); + + if (!framebuffer_bar) { + printk(BIOS_ALERT, "Framebuffer BAR invalid\n"); + return; + } + + framebuffer = (void *)lb_new_record(header); + ret = fsp_fill_lb_framebuffer(framebuffer); + if (ret != CB_SUCCESS) { + printk(BIOS_ALERT, "FSP did not return a valid framebuffer\n"); + return; + } + + /* Resource allocator can move the BAR around after FSP configures it */ + framebuffer->physical_address = framebuffer_bar; + printk(BIOS_DEBUG, "Graphics framebuffer located at 0x%llx\n", + framebuffer->physical_address); +} + +__attribute__((weak)) uintptr_t fsp_soc_get_igd_bar(void) +{ + return 0; +} \ No newline at end of file diff --git a/src/drivers/intel/fsp2_0/include/fsp/util.h b/src/drivers/intel/fsp2_0/include/fsp/util.h index 1c8dbba024..acb41e0c4d 100644 --- a/src/drivers/intel/fsp2_0/include/fsp/util.h +++ b/src/drivers/intel/fsp2_0/include/fsp/util.h @@ -77,6 +77,9 @@ enum cb_err fsp_validate_component(struct fsp_header *hdr, /* Load a vbt.bin file for graphics. Returns 0 if a valid VBT is not found. */ uintptr_t fsp_load_vbt(void); +/* Get igd framebuffer bar from SoC */ +uintptr_t fsp_soc_get_igd_bar(void); + /* * Handle FSP reboot request status. Chipset/soc is expected to provide * chipset_handle_reset() that deals with reset type codes specific to given -- cgit v1.2.3