+++ /dev/null
-/*
- * (C) Copyright 2002
- * Stäubli Faverges - <www.staubli.com>
- * Pierre AUBERT p.aubert@staubli.com
- *
- * (C) Copyright 2005
- * Martin Krause TQ-Systems GmbH martin.krause@tqs.de
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-/*
- * Basic video support for SMI SM501 "Voyager" graphic controller
- */
-
-#include <common.h>
-
-#include <asm/io.h>
-#include <pci.h>
-#include <video_fb.h>
-#include <sm501.h>
-
-#define read8(ptrReg) \
- *(volatile unsigned char *)(sm501.isaBase + ptrReg)
-
-#define write8(ptrReg,value) \
- *(volatile unsigned char *)(sm501.isaBase + ptrReg) = value
-
-#define read16(ptrReg) \
- (*(volatile unsigned short *)(sm501.isaBase + ptrReg))
-
-#define write16(ptrReg,value) \
- (*(volatile unsigned short *)(sm501.isaBase + ptrReg) = value)
-
-#define read32(ptrReg) \
- (*(volatile unsigned int *)(sm501.isaBase + ptrReg))
-
-#define write32(ptrReg, value) \
- (*(volatile unsigned int *)(sm501.isaBase + ptrReg) = value)
-
-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 --
- *-----------------------------------------------------------------------------
- */
-static void SmiSetRegs (void)
-{
- /*
- * The content of the chipset register depends on the board (clocks,
- * ...)
- */
- const SMI_REGS *preg = board_get_regs ();
- while (preg->Index) {
- write_reg32 (preg->Index, preg->Value);
- /*
- * Insert a delay between
- */
- udelay (1000);
- preg ++;
- }
-}
-
-#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) {
- sm501.isaBase = board_video_init ();
- if (!sm501.isaBase)
- return NULL;
- }
-
- if (!sm501.frameAdrs) {
- sm501.frameAdrs = board_video_get_fb ();
- if (!sm501.frameAdrs)
- return NULL;
- }
-
- sm501.winSizeX = board_get_width ();
- sm501.winSizeY = board_get_height ();
-
-#if defined(CONFIG_VIDEO_SM501_8BPP)
- sm501.gdfIndex = GDF__8BIT_INDEX;
- sm501.gdfBytesPP = 1;
-
-#elif defined(CONFIG_VIDEO_SM501_16BPP)
- sm501.gdfIndex = GDF_16BIT_565RGB;
- sm501.gdfBytesPP = 2;
-
-#elif defined(CONFIG_VIDEO_SM501_32BPP)
- sm501.gdfIndex = GDF_32BIT_X888RGB;
- sm501.gdfBytesPP = 4;
-#else
-#error Unsupported SM501 BPP
-#endif
-
- sm501.memSize = sm501.winSizeX * sm501.winSizeY * sm501.gdfBytesPP;
-
- /* Load Smi registers */
- SmiSetRegs ();
-
- /* (see board/RPXClassic/RPXClassic.c) */
- board_validate_screen (sm501.isaBase);
-
- /* Clear video memory */
- i = sm501.memSize/4;
- vm = (unsigned int *)sm501.frameAdrs;
- while(i--)
- *vm++ = 0;
-
- return (&sm501);
-}