X-Git-Url: https://git.kernelconcepts.de/?a=blobdiff_plain;f=drivers%2Fvideo%2Fsm501.c;h=42ac6805670771c02a66605cd3cd575b854cee4f;hb=0c669fd17a9d8452f70369474925a91139e3005d;hp=23db02cd10a83374b077de8eb2a9aa0b87af3df5;hpb=4985ca5af3767ffe13ea96e1dc26f88c81084414;p=karo-tx-uboot.git

diff --git a/drivers/video/sm501.c b/drivers/video/sm501.c
index 23db02cd10..42ac680567 100644
--- a/drivers/video/sm501.c
+++ b/drivers/video/sm501.c
@@ -1,6 +1,6 @@
 /*
  * (C) Copyright 2002
- * Stäubli Faverges - <www.staubli.com>
+ * Stäubli Faverges - <www.staubli.com>
  * Pierre AUBERT  p.aubert@staubli.com
  *
  * (C) Copyright 2005
@@ -31,8 +31,7 @@
 
 #include <common.h>
 
-#ifdef CONFIG_VIDEO_SM501
-
+#include <asm/io.h>
 #include <video_fb.h>
 #include <sm501.h>
 
@@ -56,6 +55,18 @@
 
 GraphicDevice sm501;
 
+void write_be32(int off, unsigned int val)
+{
+	out_be32((unsigned __iomem *)(sm501.isaBase + off), val);
+}
+
+void write_le32(int off, unsigned int val)
+{
+	out_le32((unsigned __iomem *)(sm501.isaBase + off), val);
+}
+
+void (*write_reg32)(int off, unsigned int val) = write_be32;
+
 /*-----------------------------------------------------------------------------
  * SmiSetRegs --
  *-----------------------------------------------------------------------------
@@ -68,7 +79,7 @@ static void SmiSetRegs (void)
 	 */
 	const SMI_REGS *preg = board_get_regs ();
 	while (preg->Index) {
-		write32 (preg->Index, preg->Value);
+		write_reg32 (preg->Index, preg->Value);
 		/*
 		 * Insert a delay between
 		 */
@@ -77,26 +88,120 @@ static void SmiSetRegs (void)
 	}
 }
 
+#ifdef CONFIG_VIDEO_SM501_PCI
+static struct pci_device_id sm501_pci_tbl[] = {
+	{ PCI_VENDOR_ID_SMI, PCI_DEVICE_ID_SMI_501 },
+	{}
+};
+#endif
+
+/*
+ * We do not enforce board code to provide empty/unused
+ * functions for this driver and define weak default
+ * functions here.
+ */
+unsigned int __board_video_init (void)
+{
+	return 0;
+}
+
+unsigned int board_video_init (void)
+			__attribute__((weak, alias("__board_video_init")));
+
+unsigned int __board_video_get_fb (void)
+{
+	return 0;
+}
+
+unsigned int board_video_get_fb (void)
+			__attribute__((weak, alias("__board_video_get_fb")));
+
+void __board_validate_screen (unsigned int base)
+{
+}
+
+void board_validate_screen (unsigned int base)
+			__attribute__((weak, alias("__board_validate_screen")));
+
 /*-----------------------------------------------------------------------------
  * video_hw_init --
  *-----------------------------------------------------------------------------
  */
 void *video_hw_init (void)
 {
+#ifdef CONFIG_VIDEO_SM501_PCI
+	unsigned int pci_mem_base, pci_mmio_base;
+	unsigned int id;
+	unsigned short device_id;
+	pci_dev_t devbusfn;
+	int mem;
+#endif
 	unsigned int *vm, i;
 
 	memset (&sm501, 0, sizeof (GraphicDevice));
 
+#ifdef CONFIG_VIDEO_SM501_PCI
+	printf("Video: ");
+
+	/* Look for SM501/SM502 chips */
+	devbusfn = pci_find_devices(sm501_pci_tbl, 0);
+	if (devbusfn < 0) {
+		printf ("PCI Controller not found.\n");
+		goto not_pci;
+	}
+
+	/* Setup */
+	pci_write_config_dword (devbusfn, PCI_COMMAND,
+				(PCI_COMMAND_MEMORY | PCI_COMMAND_IO));
+	pci_read_config_word (devbusfn, PCI_DEVICE_ID, &device_id);
+	pci_read_config_dword (devbusfn, PCI_REVISION_ID, &id);
+	pci_read_config_dword (devbusfn, PCI_BASE_ADDRESS_0, &pci_mem_base);
+	pci_read_config_dword (devbusfn, PCI_BASE_ADDRESS_1, &pci_mmio_base);
+	sm501.frameAdrs = pci_mem_to_phys (devbusfn, pci_mem_base);
+	sm501.isaBase = pci_mem_to_phys (devbusfn, pci_mmio_base);
+
+	if (sm501.isaBase)
+		write_reg32 = write_le32;
+
+	mem = in_le32 ((unsigned __iomem *)(sm501.isaBase + 0x10));
+	mem = (mem & 0x0000e000) >> 13;
+	switch (mem) {
+	case 1:
+		mem = 8;
+		break;
+	case 2:
+		mem = 16;
+		break;
+	case 3:
+		mem = 32;
+		break;
+	case 4:
+		mem = 64;
+		break;
+	case 5:
+		mem = 2;
+		break;
+	case 0:
+	default:
+		mem = 4;
+	}
+	printf ("PCI SM50%d %d MB\n", ((id & 0xff) == 0xC0) ? 2 : 1, mem);
+not_pci:
+#endif
 	/*
 	 * Initialization of the access to the graphic chipset Retreive base
 	 * address of the chipset (see board/RPXClassic/eccx.c)
 	 */
-	if ((sm501.isaBase = board_video_init ()) == 0) {
-		return (NULL);
+	if (!sm501.isaBase) {
+		sm501.isaBase = board_video_init ();
+		if (!sm501.isaBase)
+			return NULL;
 	}
 
-	if ((sm501.frameAdrs = board_video_get_fb ()) == 0) {
-		return (NULL);
+	if (!sm501.frameAdrs) {
+		sm501.frameAdrs = board_video_get_fb ();
+		if (!sm501.frameAdrs)
+			return NULL;
 	}
 
 	sm501.winSizeX = board_get_width ();
@@ -133,18 +238,3 @@ void *video_hw_init (void)
 
 	return (&sm501);
 }
-
-/*-----------------------------------------------------------------------------
- * video_set_lut --
- *-----------------------------------------------------------------------------
- */
-void video_set_lut (
-	unsigned int index,           /* color number */
-	unsigned char r,              /* red */
-	unsigned char g,              /* green */
-	unsigned char b               /* blue */
-	)
-{
-}
-
-#endif /* CONFIG_VIDEO_SM501 */