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u-boot/drivers/video/mb862xx.c
Tom Rini 83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style 
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00

484 lines
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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
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