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// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2007
* DENX Software Engineering, Anatolij Gustschin, agust@denx.de
*/
/*
* mb862xx.c - Graphic interface for Fujitsu CoralP/Lime
* PCI and video mode code was derived from smiLynxEM driver.
*/
#include <common.h>
#include <asm/io.h>
#include <pci.h>
#include <video_fb.h>
#include "videomodes.h"
#include <mb862xx.h>
#if defined(CONFIG_POST)
#include <post.h>
#endif
/*
* Graphic Device
*/
GraphicDevice mb862xx;
/*
* 32MB external RAM - 256K Chip MMIO = 0x1FC0000 ;
*/
#define VIDEO_MEM_SIZE 0x01FC0000
#if defined(CONFIG_PCI)
#if defined(CONFIG_VIDEO_CORALP)
static struct pci_device_id supported[] = {
{ PCI_VENDOR_ID_FUJITSU, PCI_DEVICE_ID_CORAL_P },
{ PCI_VENDOR_ID_FUJITSU, PCI_DEVICE_ID_CORAL_PA },
{ }
};
/* Internal clock frequency divider table, index is mode number */
unsigned int fr_div[] = { 0x00000f00, 0x00000900, 0x00000500 };
#endif
#endif
#if defined(CONFIG_VIDEO_CORALP)
#define rd_io in32r
#define wr_io out32r
#else
#define rd_io(addr) in_be32((volatile unsigned *)(addr))
#define wr_io(addr, val) out_be32((volatile unsigned *)(addr), (val))
#endif
#define HOST_RD_REG(off) rd_io((dev->frameAdrs + GC_HOST_BASE + (off)))
#define HOST_WR_REG(off, val) wr_io((dev->frameAdrs + GC_HOST_BASE + (off)), \
(val))
#define DISP_RD_REG(off) rd_io((dev->frameAdrs + GC_DISP_BASE + (off)))
#define DISP_WR_REG(off, val) wr_io((dev->frameAdrs + GC_DISP_BASE + (off)), \
(val))
#define DE_RD_REG(off) rd_io((dev->dprBase + (off)))
#define DE_WR_REG(off, val) wr_io((dev->dprBase + (off)), (val))
#if defined(CONFIG_VIDEO_CORALP)
#define DE_WR_FIFO(val) wr_io((dev->dprBase + (GC_GEO_FIFO)), (val))
#else
#define DE_WR_FIFO(val) wr_io((dev->dprBase + (GC_FIFO)), (val))
#endif
#define L0PAL_WR_REG(idx, val) wr_io((dev->frameAdrs + \
(GC_DISP_BASE | GC_L0PAL0) + \
((idx) << 2)), (val))
#if defined(CONFIG_VIDEO_MB862xx_ACCEL)
static void gdc_sw_reset (void)
{
GraphicDevice *dev = &mb862xx;
HOST_WR_REG (GC_SRST, 0x1);
udelay (500);
video_hw_init ();
}
static void de_wait (void)
{
GraphicDevice *dev = &mb862xx;
int lc = 0x10000;
/*
* Sync with software writes to framebuffer,
* try to reset if engine locked
*/
while (DE_RD_REG (GC_CTR) & 0x00000131)
if (lc-- < 0) {
gdc_sw_reset ();
puts ("gdc reset done after drawing engine lock.\n");
break;
}
}
static void de_wait_slots (int slots)
{
GraphicDevice *dev = &mb862xx;
int lc = 0x10000;
/* Wait for free fifo slots */
while (DE_RD_REG (GC_IFCNT) < slots)
if (lc-- < 0) {
gdc_sw_reset ();
puts ("gdc reset done after drawing engine lock.\n");
break;
}
}
#endif
#if !defined(CONFIG_VIDEO_CORALP)
static void board_disp_init (void)
{
GraphicDevice *dev = &mb862xx;
const gdc_regs *regs = board_get_regs ();
while (regs->index) {
DISP_WR_REG (regs->index, regs->value);
regs++;
}
}
#endif
/*
* Init drawing engine if accel enabled.
* Also clears visible framebuffer.
*/
static void de_init (void)
{
GraphicDevice *dev = &mb862xx;
#if defined(CONFIG_VIDEO_MB862xx_ACCEL)
int cf = (dev->gdfBytesPP == 1) ? 0x0000 : 0x8000;
dev->dprBase = dev->frameAdrs + GC_DRAW_BASE;
/* Setup mode and fbbase, xres, fg, bg */
de_wait_slots (2);
DE_WR_FIFO (0xf1010108);
DE_WR_FIFO (cf | 0x0300);
DE_WR_REG (GC_FBR, 0x0);
DE_WR_REG (GC_XRES, dev->winSizeX);
DE_WR_REG (GC_FC, 0x0);
DE_WR_REG (GC_BC, 0x0);
/* Reset clipping */
DE_WR_REG (GC_CXMIN, 0x0);
DE_WR_REG (GC_CXMAX, dev->winSizeX);
DE_WR_REG (GC_CYMIN, 0x0);
DE_WR_REG (GC_CYMAX, dev->winSizeY);
/* Clear framebuffer using drawing engine */
de_wait_slots (3);
DE_WR_FIFO (0x09410000);
DE_WR_FIFO (0x00000000);
DE_WR_FIFO (dev->winSizeY << 16 | dev->winSizeX);
/* sync with SW access to framebuffer */
de_wait ();
#else
unsigned int i, *p;
i = dev->winSizeX * dev->winSizeY;
p = (unsigned int *)dev->frameAdrs;
while (i--)
*p++ = 0;
#endif
}
#if defined(CONFIG_VIDEO_CORALP)
/* use CCF and MMR parameters for Coral-P Eval. Board as default */
#ifndef CONFIG_SYS_MB862xx_CCF
#define CONFIG_SYS_MB862xx_CCF 0x00090000
#endif
#ifndef CONFIG_SYS_MB862xx_MMR
#define CONFIG_SYS_MB862xx_MMR 0x11d7fa13
#endif
unsigned int pci_video_init (void)
{
GraphicDevice *dev = &mb862xx;
pci_dev_t devbusfn;
u16 device;
if ((devbusfn = pci_find_devices (supported, 0)) < 0) {
puts("controller not present\n");
return 0;
}
/* PCI setup */
pci_write_config_dword (devbusfn, PCI_COMMAND,
(PCI_COMMAND_MEMORY | PCI_COMMAND_IO));
pci_read_config_dword (devbusfn, PCI_BASE_ADDRESS_0, &dev->frameAdrs);
dev->frameAdrs = pci_mem_to_phys (devbusfn, dev->frameAdrs);
if (dev->frameAdrs == 0) {
puts ("PCI config: failed to get base address\n");
return 0;
}
dev->pciBase = dev->frameAdrs;
puts("Coral-");
pci_read_config_word(devbusfn, PCI_DEVICE_ID, &device);
switch (device) {
case PCI_DEVICE_ID_CORAL_P:
puts("P\n");
break;
case PCI_DEVICE_ID_CORAL_PA:
puts("PA\n");
break;
default:
puts("Unknown\n");
return 0;
}
/* Setup clocks and memory mode for Coral-P(A) */
HOST_WR_REG(GC_CCF, CONFIG_SYS_MB862xx_CCF);
udelay (200);
HOST_WR_REG(GC_MMR, CONFIG_SYS_MB862xx_MMR);
udelay (100);
return dev->frameAdrs;
}
unsigned int card_init (void)
{
GraphicDevice *dev = &mb862xx;
unsigned int cf, videomode, div = 0;
unsigned long t1, hsync, vsync;
char *penv;
int tmp, i, bpp;
struct ctfb_res_modes *res_mode;
struct ctfb_res_modes var_mode;
memset (dev, 0, sizeof (GraphicDevice));
if (!pci_video_init ())
return 0;
tmp = 0;
videomode = 0x310;
/* get video mode via environment */
penv = env_get("videomode");
if (penv) {
/* decide if it is a string */
if (penv[0] <= '9') {
videomode = (int) simple_strtoul (penv, NULL, 16);
tmp = 1;
}
} else {
tmp = 1;
}
if (tmp) {
/* parameter are vesa modes, search params */
for (i = 0; i < VESA_MODES_COUNT; i++) {
if (vesa_modes[i].vesanr == videomode)
break;
}
if (i == VESA_MODES_COUNT) {
printf ("\tno VESA Mode found, fallback to mode 0x%x\n",
videomode);
i = 0;
}
res_mode = (struct ctfb_res_modes *)
&res_mode_init[vesa_modes[i].resindex];
if (vesa_modes[i].resindex > 2) {
puts ("\tUnsupported resolution, using default\n");
bpp = vesa_modes[1].bits_per_pixel;
div = fr_div[1];
}
bpp = vesa_modes[i].bits_per_pixel;
div = fr_div[vesa_modes[i].resindex];
} else {
res_mode = (struct ctfb_res_modes *) &var_mode;
bpp = video_get_params (res_mode, penv);
}
/* calculate hsync and vsync freq (info only) */
t1 = (res_mode->left_margin + res_mode->xres +
res_mode->right_margin + res_mode->hsync_len) / 8;
t1 *= 8;
t1 *= res_mode->pixclock;
t1 /= 1000;
hsync = 1000000000L / t1;
t1 *= (res_mode->upper_margin + res_mode->yres +
res_mode->lower_margin + res_mode->vsync_len);
t1 /= 1000;
vsync = 1000000000L / t1;
/* fill in Graphic device struct */
sprintf (dev->modeIdent, "%dx%dx%d %ldkHz %ldHz", res_mode->xres,
res_mode->yres, bpp, (hsync / 1000), (vsync / 1000));
printf ("\t%s\n", dev->modeIdent);
dev->winSizeX = res_mode->xres;
dev->winSizeY = res_mode->yres;
dev->memSize = VIDEO_MEM_SIZE;
switch (bpp) {
case 8:
dev->gdfIndex = GDF__8BIT_INDEX;
dev->gdfBytesPP = 1;
break;
case 15:
case 16:
dev->gdfIndex = GDF_15BIT_555RGB;
dev->gdfBytesPP = 2;
break;
default:
printf ("\t%d bpp configured, but only 8,15 and 16 supported\n",
bpp);
puts ("\tfallback to 15bpp\n");
dev->gdfIndex = GDF_15BIT_555RGB;
dev->gdfBytesPP = 2;
}
/* Setup dot clock (internal pll, division rate) */
DISP_WR_REG (GC_DCM1, div);
/* L0 init */
cf = (dev->gdfBytesPP == 1) ? 0x00000000 : 0x80000000;
DISP_WR_REG (GC_L0M, ((dev->winSizeX * dev->gdfBytesPP) / 64) << 16 |
(dev->winSizeY - 1) | cf);
DISP_WR_REG (GC_L0OA0, 0x0);
DISP_WR_REG (GC_L0DA0, 0x0);
DISP_WR_REG (GC_L0DY_L0DX, 0x0);
DISP_WR_REG (GC_L0EM, 0x0);
DISP_WR_REG (GC_L0WY_L0WX, 0x0);
DISP_WR_REG (GC_L0WH_L0WW, (dev->winSizeY - 1) << 16 | dev->winSizeX);
/* Display timing init */
DISP_WR_REG (GC_HTP_A, (dev->winSizeX +
res_mode->left_margin +
res_mode->right_margin +
res_mode->hsync_len - 1) << 16);
DISP_WR_REG (GC_HDB_HDP_A, (dev->winSizeX - 1) << 16 |
(dev->winSizeX - 1));
DISP_WR_REG (GC_VSW_HSW_HSP_A, (res_mode->vsync_len - 1) << 24 |
(res_mode->hsync_len - 1) << 16 |
(dev->winSizeX +
res_mode->right_margin - 1));
DISP_WR_REG (GC_VTR_A, (dev->winSizeY + res_mode->lower_margin +
res_mode->upper_margin +
res_mode->vsync_len - 1) << 16);
DISP_WR_REG (GC_VDP_VSP_A, (dev->winSizeY-1) << 16 |
(dev->winSizeY +
res_mode->lower_margin - 1));
DISP_WR_REG (GC_WY_WX, 0x0);
DISP_WR_REG (GC_WH_WW, dev->winSizeY << 16 | dev->winSizeX);
/* Display enable, L0 layer */
DISP_WR_REG (GC_DCM1, 0x80010000 | div);
return dev->frameAdrs;
}
#endif
#if !defined(CONFIG_VIDEO_CORALP)
int mb862xx_probe(unsigned int addr)
{
GraphicDevice *dev = &mb862xx;
unsigned int reg;
dev->frameAdrs = addr;
dev->dprBase = dev->frameAdrs + GC_DRAW_BASE;
/* Try to access GDC ID/Revision registers */
reg = HOST_RD_REG (GC_CID);
reg = HOST_RD_REG (GC_CID);
if (reg == 0x303) {
reg = DE_RD_REG(GC_REV);
reg = DE_RD_REG(GC_REV);
if ((reg & ~0xff) == 0x20050100)
return MB862XX_TYPE_LIME;
}
return 0;
}
#endif
void *video_hw_init (void)
{
GraphicDevice *dev = &mb862xx;
puts ("Video: Fujitsu ");
memset (dev, 0, sizeof (GraphicDevice));
#if defined(CONFIG_VIDEO_CORALP)
if (card_init () == 0)
return NULL;
#else
/*
* Preliminary init of the onboard graphic controller,
* retrieve base address
*/
if ((dev->frameAdrs = board_video_init ()) == 0) {
puts ("Controller not found!\n");
return NULL;
} else {
puts ("Lime\n");
/* Set Change of Clock Frequency Register */
HOST_WR_REG (GC_CCF, CONFIG_SYS_MB862xx_CCF);
/* Delay required */
udelay(300);
/* Set Memory I/F Mode Register) */
HOST_WR_REG (GC_MMR, CONFIG_SYS_MB862xx_MMR);
}
#endif
de_init ();
#if !defined(CONFIG_VIDEO_CORALP)
board_disp_init ();
#endif
#if (defined(CONFIG_LWMON5) || \
defined(CONFIG_SOCRATES)) && !(CONFIG_POST & CONFIG_SYS_POST_SYSMON)
/* Lamp on */
board_backlight_switch (1);
#endif
return dev;
}
/*
* Set a RGB color in the LUT
*/
void video_set_lut (unsigned int index, unsigned char r,
unsigned char g, unsigned char b)
{
GraphicDevice *dev = &mb862xx;
L0PAL_WR_REG (index, (r << 16) | (g << 8) | (b));
}
#if defined(CONFIG_VIDEO_MB862xx_ACCEL)
/*
* Drawing engine Fill and BitBlt screen region
*/
void video_hw_rectfill (unsigned int bpp, unsigned int dst_x,
unsigned int dst_y, unsigned int dim_x,
unsigned int dim_y, unsigned int color)
{
GraphicDevice *dev = &mb862xx;
de_wait_slots (3);
DE_WR_REG (GC_FC, color);
DE_WR_FIFO (0x09410000);
DE_WR_FIFO ((dst_y << 16) | dst_x);
DE_WR_FIFO ((dim_y << 16) | dim_x);
de_wait ();
}
void video_hw_bitblt (unsigned int bpp, unsigned int src_x,
unsigned int src_y, unsigned int dst_x,
unsigned int dst_y, unsigned int width,
unsigned int height)
{
GraphicDevice *dev = &mb862xx;
unsigned int ctrl = 0x0d000000L;
if (src_x >= dst_x && src_y >= dst_y)
ctrl |= 0x00440000L;
else if (src_x >= dst_x && src_y <= dst_y)
ctrl |= 0x00460000L;
else if (src_x <= dst_x && src_y >= dst_y)
ctrl |= 0x00450000L;
else
ctrl |= 0x00470000L;
de_wait_slots (4);
DE_WR_FIFO (ctrl);
DE_WR_FIFO ((src_y << 16) | src_x);
DE_WR_FIFO ((dst_y << 16) | dst_x);
DE_WR_FIFO ((height << 16) | width);
de_wait (); /* sync */
}
#endif