diff options
Diffstat (limited to 'drivers/video/sm501.c')
| -rw-r--r-- | drivers/video/sm501.c | 89 |
1 files changed, 84 insertions, 5 deletions
diff --git a/drivers/video/sm501.c b/drivers/video/sm501.c index 8c96316..f55bf3c 100644 --- a/drivers/video/sm501.c +++ b/drivers/video/sm501.c @@ -31,6 +31,7 @@ #include <common.h> +#include <asm/io.h> #include <video_fb.h> #include <sm501.h> @@ -54,6 +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 -- *----------------------------------------------------------------------------- @@ -66,7 +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 */ @@ -75,26 +88,92 @@ 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 + /*----------------------------------------------------------------------------- * 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 (); |