From: Peter 'p2' De Schrijver Date: Mon, 7 Nov 2005 09:00:42 +0000 (-0800) Subject: [PATCH] pm2fb: Manual configuration of timings for Elsa Winner 2000 Office X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=9127fa28595093a146fc3e2c937747e014e4bfa2;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git [PATCH] pm2fb: Manual configuration of timings for Elsa Winner 2000 Office Attached is a small patch which configures the correct memory clock and timings on the Elsa Winner 2000 Office pm2 based card. This is necessary when the card is used on a platform which does not support PC style BIOS initialization. Signed-off-by: Antonino Daplas Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- diff --git a/drivers/video/pm2fb.c b/drivers/video/pm2fb.c index f4188fe6dd9a..0277ce031e5e 100644 --- a/drivers/video/pm2fb.c +++ b/drivers/video/pm2fb.c @@ -1120,6 +1120,22 @@ static int __devinit pm2fb_probe(struct pci_dev *pdev, default_par->mem_control, default_par->boot_address, default_par->mem_config); + if(default_par->mem_control == 0 && + default_par->boot_address == 0x31 && + default_par->mem_config == 0x259fffff && + pdev->subsystem_vendor == 0x1048 && + pdev->subsystem_device == 0x0a31) { + DPRINTK("subsystem_vendor: %04x, subsystem_device: %04x\n", + pdev->subsystem_vendor, pdev->subsystem_device); + DPRINTK("We have not been initialized by VGA BIOS " + "and are running on an Elsa Winner 2000 Office\n"); + DPRINTK("Initializing card timings manually...\n"); + default_par->mem_control=0; + default_par->boot_address=0x20; + default_par->mem_config=0xe6002021; + default_par->memclock=100000; + } + /* Now work out how big lfb is going to be. */ switch(default_par->mem_config & PM2F_MEM_CONFIG_RAM_MASK) { case PM2F_MEM_BANKS_1: