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u-boot/drivers/video/pxa_lcd.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

614 lines
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// SPDX-License-Identifier: GPL-2.0+
/*
* PXA LCD Controller
*
* (C) Copyright 2001-2002
* Wolfgang Denk, DENX Software Engineering -- wd@denx.de
*/
/************************************************************************/
/* ** HEADER FILES */
/************************************************************************/
#include <common.h>
#include <asm/arch/pxa-regs.h>
#include <asm/io.h>
#include <lcd.h>
#include <linux/types.h>
#include <stdarg.h>
#include <stdio_dev.h>
/* #define DEBUG */
#ifdef CONFIG_LCD
/*----------------------------------------------------------------------*/
/*
* Define panel bpp, LCCR0, LCCR3 and panel_info video struct for
* your display.
*/
#ifdef CONFIG_PXA_VGA
/* LCD outputs connected to a video DAC */
# define LCD_BPP LCD_COLOR8
/* you have to set lccr0 and lccr3 (including pcd) */
# define REG_LCCR0 0x003008f8
# define REG_LCCR3 0x0300FF01
/* 640x480x16 @ 61 Hz */
vidinfo_t panel_info = {
.vl_col = 640,
.vl_row = 480,
.vl_width = 640,
.vl_height = 480,
.vl_clkp = CONFIG_SYS_HIGH,
.vl_oep = CONFIG_SYS_HIGH,
.vl_hsp = CONFIG_SYS_HIGH,
.vl_vsp = CONFIG_SYS_HIGH,
.vl_dp = CONFIG_SYS_HIGH,
.vl_bpix = LCD_BPP,
.vl_lbw = 0,
.vl_splt = 0,
.vl_clor = 0,
.vl_tft = 1,
.vl_hpw = 40,
.vl_blw = 56,
.vl_elw = 56,
.vl_vpw = 20,
.vl_bfw = 8,
.vl_efw = 8,
};
#endif /* CONFIG_PXA_VIDEO */
/*----------------------------------------------------------------------*/
#ifdef CONFIG_SHARP_LM8V31
# define LCD_BPP LCD_COLOR8
# define LCD_INVERT_COLORS /* Needed for colors to be correct, but why? */
/* you have to set lccr0 and lccr3 (including pcd) */
# define REG_LCCR0 0x0030087C
# define REG_LCCR3 0x0340FF08
vidinfo_t panel_info = {
.vl_col = 640,
.vl_row = 480,
.vl_width = 157,
.vl_height = 118,
.vl_clkp = CONFIG_SYS_HIGH,
.vl_oep = CONFIG_SYS_HIGH,
.vl_hsp = CONFIG_SYS_HIGH,
.vl_vsp = CONFIG_SYS_HIGH,
.vl_dp = CONFIG_SYS_HIGH,
.vl_bpix = LCD_BPP,
.vl_lbw = 0,
.vl_splt = 1,
.vl_clor = 1,
.vl_tft = 0,
.vl_hpw = 1,
.vl_blw = 3,
.vl_elw = 3,
.vl_vpw = 1,
.vl_bfw = 0,
.vl_efw = 0,
};
#endif /* CONFIG_SHARP_LM8V31 */
/*----------------------------------------------------------------------*/
#ifdef CONFIG_VOIPAC_LCD
# define LCD_BPP LCD_COLOR8
# define LCD_INVERT_COLORS
/* you have to set lccr0 and lccr3 (including pcd) */
# define REG_LCCR0 0x043008f8
# define REG_LCCR3 0x0340FF08
vidinfo_t panel_info = {
.vl_col = 640,
.vl_row = 480,
.vl_width = 157,
.vl_height = 118,
.vl_clkp = CONFIG_SYS_HIGH,
.vl_oep = CONFIG_SYS_HIGH,
.vl_hsp = CONFIG_SYS_HIGH,
.vl_vsp = CONFIG_SYS_HIGH,
.vl_dp = CONFIG_SYS_HIGH,
.vl_bpix = LCD_BPP,
.vl_lbw = 0,
.vl_splt = 1,
.vl_clor = 1,
.vl_tft = 1,
.vl_hpw = 32,
.vl_blw = 144,
.vl_elw = 32,
.vl_vpw = 2,
.vl_bfw = 13,
.vl_efw = 30,
};
#endif /* CONFIG_VOIPAC_LCD */
/*----------------------------------------------------------------------*/
#ifdef CONFIG_HITACHI_SX14
/* Hitachi SX14Q004-ZZA color STN LCD */
#define LCD_BPP LCD_COLOR8
/* you have to set lccr0 and lccr3 (including pcd) */
#define REG_LCCR0 0x00301079
#define REG_LCCR3 0x0340FF20
vidinfo_t panel_info = {
.vl_col = 320,
.vl_row = 240,
.vl_width = 167,
.vl_height = 109,
.vl_clkp = CONFIG_SYS_HIGH,
.vl_oep = CONFIG_SYS_HIGH,
.vl_hsp = CONFIG_SYS_HIGH,
.vl_vsp = CONFIG_SYS_HIGH,
.vl_dp = CONFIG_SYS_HIGH,
.vl_bpix = LCD_BPP,
.vl_lbw = 1,
.vl_splt = 0,
.vl_clor = 1,
.vl_tft = 0,
.vl_hpw = 1,
.vl_blw = 1,
.vl_elw = 1,
.vl_vpw = 7,
.vl_bfw = 0,
.vl_efw = 0,
};
#endif /* CONFIG_HITACHI_SX14 */
/*----------------------------------------------------------------------*/
#ifdef CONFIG_LMS283GF05
# define LCD_BPP LCD_COLOR8
/*# define LCD_INVERT_COLORS*/
/* you have to set lccr0 and lccr3 (including pcd) */
# define REG_LCCR0 0x043008f8
# define REG_LCCR3 0x03b00009
vidinfo_t panel_info = {
.vl_col = 240,
.vl_row = 320,
.vl_rot = 3,
.vl_width = 240,
.vl_height = 320,
.vl_clkp = CONFIG_SYS_HIGH,
.vl_oep = CONFIG_SYS_LOW,
.vl_hsp = CONFIG_SYS_LOW,
.vl_vsp = CONFIG_SYS_LOW,
.vl_dp = CONFIG_SYS_HIGH,
.vl_bpix = LCD_BPP,
.vl_lbw = 0,
.vl_splt = 1,
.vl_clor = 1,
.vl_tft = 1,
.vl_hpw = 4,
.vl_blw = 4,
.vl_elw = 8,
.vl_vpw = 4,
.vl_bfw = 4,
.vl_efw = 8,
};
#endif /* CONFIG_LMS283GF05 */
/*----------------------------------------------------------------------*/
#ifdef CONFIG_ACX517AKN
# define LCD_BPP LCD_COLOR8
/* you have to set lccr0 and lccr3 (including pcd) */
# define REG_LCCR0 0x003008f9
# define REG_LCCR3 0x03700006
vidinfo_t panel_info = {
.vl_col = 320,
.vl_row = 320,
.vl_width = 320,
.vl_height = 320,
.vl_clkp = CONFIG_SYS_HIGH,
.vl_oep = CONFIG_SYS_LOW,
.vl_hsp = CONFIG_SYS_LOW,
.vl_vsp = CONFIG_SYS_LOW,
.vl_dp = CONFIG_SYS_HIGH,
.vl_bpix = LCD_BPP,
.vl_lbw = 0,
.vl_splt = 1,
.vl_clor = 1,
.vl_tft = 1,
.vl_hpw = 0x04,
.vl_blw = 0x1c,
.vl_elw = 0x08,
.vl_vpw = 0x01,
.vl_bfw = 0x07,
.vl_efw = 0x08,
};
#endif /* CONFIG_ACX517AKN */
#ifdef CONFIG_ACX544AKN
# define LCD_BPP LCD_COLOR16
/* you have to set lccr0 and lccr3 (including pcd) */
# define REG_LCCR0 0x003008f9
# define REG_LCCR3 0x04700007 /* 16bpp */
vidinfo_t panel_info = {
.vl_col = 320,
.vl_row = 320,
.vl_width = 320,
.vl_height = 320,
.vl_clkp = CONFIG_SYS_LOW,
.vl_oep = CONFIG_SYS_LOW,
.vl_hsp = CONFIG_SYS_LOW,
.vl_vsp = CONFIG_SYS_LOW,
.vl_dp = CONFIG_SYS_LOW,
.vl_bpix = LCD_BPP,
.vl_lbw = 0,
.vl_splt = 0,
.vl_clor = 1,
.vl_tft = 1,
.vl_hpw = 0x05,
.vl_blw = 0x13,
.vl_elw = 0x08,
.vl_vpw = 0x02,
.vl_bfw = 0x07,
.vl_efw = 0x05,
};
#endif /* CONFIG_ACX544AKN */
/*----------------------------------------------------------------------*/
#ifdef CONFIG_LQ038J7DH53
# define LCD_BPP LCD_COLOR8
/* you have to set lccr0 and lccr3 (including pcd) */
# define REG_LCCR0 0x003008f9
# define REG_LCCR3 0x03700004
vidinfo_t panel_info = {
.vl_col = 320,
.vl_row = 480,
.vl_width = 320,
.vl_height = 480,
.vl_clkp = CONFIG_SYS_HIGH,
.vl_oep = CONFIG_SYS_LOW,
.vl_hsp = CONFIG_SYS_LOW,
.vl_vsp = CONFIG_SYS_LOW,
.vl_dp = CONFIG_SYS_HIGH,
.vl_bpix = LCD_BPP,
.vl_lbw = 0,
.vl_splt = 1,
.vl_clor = 1,
.vl_tft = 1,
.vl_hpw = 0x04,
.vl_blw = 0x20,
.vl_elw = 0x01,
.vl_vpw = 0x01,
.vl_bfw = 0x04,
.vl_efw = 0x01,
};
#endif /* CONFIG_ACX517AKN */
/*----------------------------------------------------------------------*/
#ifdef CONFIG_LITTLETON_LCD
# define LCD_BPP LCD_COLOR8
/* you have to set lccr0 and lccr3 (including pcd) */
# define REG_LCCR0 0x003008f8
# define REG_LCCR3 0x0300FF04
vidinfo_t panel_info = {
.vl_col = 480,
.vl_row = 640,
.vl_width = 480,
.vl_height = 640,
.vl_clkp = CONFIG_SYS_HIGH,
.vl_oep = CONFIG_SYS_HIGH,
.vl_hsp = CONFIG_SYS_HIGH,
.vl_vsp = CONFIG_SYS_HIGH,
.vl_dp = CONFIG_SYS_HIGH,
.vl_bpix = LCD_BPP,
.vl_lbw = 0,
.vl_splt = 0,
.vl_clor = 0,
.vl_tft = 1,
.vl_hpw = 9,
.vl_blw = 8,
.vl_elw = 24,
.vl_vpw = 2,
.vl_bfw = 2,
.vl_efw = 4,
};
#endif /* CONFIG_LITTLETON_LCD */
/*----------------------------------------------------------------------*/
static int pxafb_init_mem (void *lcdbase, vidinfo_t *vid);
static void pxafb_setup_gpio (vidinfo_t *vid);
static void pxafb_enable_controller (vidinfo_t *vid);
static int pxafb_init (vidinfo_t *vid);
/************************************************************************/
/* --------------- PXA chipset specific functions ------------------- */
/************************************************************************/
ushort *configuration_get_cmap(void)
{
struct pxafb_info *fbi = &panel_info.pxa;
return (ushort *)fbi->palette;
}
void lcd_ctrl_init (void *lcdbase)
{
pxafb_init_mem(lcdbase, &panel_info);
pxafb_init(&panel_info);
pxafb_setup_gpio(&panel_info);
pxafb_enable_controller(&panel_info);
}
/*----------------------------------------------------------------------*/
#if LCD_BPP == LCD_COLOR8
void
lcd_setcolreg (ushort regno, ushort red, ushort green, ushort blue)
{
struct pxafb_info *fbi = &panel_info.pxa;
unsigned short *palette = (unsigned short *)fbi->palette;
u_int val;
if (regno < fbi->palette_size) {
val = ((red << 8) & 0xf800);
val |= ((green << 4) & 0x07e0);
val |= (blue & 0x001f);
#ifdef LCD_INVERT_COLORS
palette[regno] = ~val;
#else
palette[regno] = val;
#endif
}
debug ("setcolreg: reg %2d @ %p: R=%02X G=%02X B=%02X => %04X\n",
regno, &palette[regno],
red, green, blue,
palette[regno]);
}
#endif /* LCD_COLOR8 */
/*----------------------------------------------------------------------*/
__weak void lcd_enable(void)
{
}
/************************************************************************/
/* ** PXA255 specific routines */
/************************************************************************/
/*
* Calculate fb size for VIDEOLFB_ATAG. Size returned contains fb,
* descriptors and palette areas.
*/
ulong calc_fbsize (void)
{
ulong size;
int line_length = (panel_info.vl_col * NBITS (panel_info.vl_bpix)) / 8;
size = line_length * panel_info.vl_row;
size += PAGE_SIZE;
return size;
}
static int pxafb_init_mem (void *lcdbase, vidinfo_t *vid)
{
u_long palette_mem_size;
struct pxafb_info *fbi = &vid->pxa;
int fb_size = vid->vl_row * (vid->vl_col * NBITS (vid->vl_bpix)) / 8;
fbi->screen = (u_long)lcdbase;
fbi->palette_size = NBITS(vid->vl_bpix) == 8 ? 256 : 16;
palette_mem_size = fbi->palette_size * sizeof(u16);
debug("palette_mem_size = 0x%08lx\n", (u_long) palette_mem_size);
/* locate palette and descs at end of page following fb */
fbi->palette = (u_long)lcdbase + fb_size + PAGE_SIZE - palette_mem_size;
return 0;
}
#ifdef CONFIG_CPU_MONAHANS
static inline void pxafb_setup_gpio (vidinfo_t *vid) {}
#else
static void pxafb_setup_gpio (vidinfo_t *vid)
{
u_long lccr0;
/*
* setup is based on type of panel supported
*/
lccr0 = vid->pxa.reg_lccr0;
/* 4 bit interface */
if ((lccr0 & LCCR0_CMS) && (lccr0 & LCCR0_SDS) && !(lccr0 & LCCR0_DPD))
{
debug("Setting GPIO for 4 bit data\n");
/* bits 58-61 */
writel(readl(GPDR1) | (0xf << 26), GPDR1);
writel((readl(GAFR1_U) & ~(0xff << 20)) | (0xaa << 20),
GAFR1_U);
/* bits 74-77 */
writel(readl(GPDR2) | (0xf << 10), GPDR2);
writel((readl(GAFR2_L) & ~(0xff << 20)) | (0xaa << 20),
GAFR2_L);
}
/* 8 bit interface */
else if (((lccr0 & LCCR0_CMS) && ((lccr0 & LCCR0_SDS) || (lccr0 & LCCR0_DPD))) ||
(!(lccr0 & LCCR0_CMS) && !(lccr0 & LCCR0_PAS) && !(lccr0 & LCCR0_SDS)))
{
debug("Setting GPIO for 8 bit data\n");
/* bits 58-65 */
writel(readl(GPDR1) | (0x3f << 26), GPDR1);
writel(readl(GPDR2) | (0x3), GPDR2);
writel((readl(GAFR1_U) & ~(0xfff << 20)) | (0xaaa << 20),
GAFR1_U);
writel((readl(GAFR2_L) & ~0xf) | (0xa), GAFR2_L);
/* bits 74-77 */
writel(readl(GPDR2) | (0xf << 10), GPDR2);
writel((readl(GAFR2_L) & ~(0xff << 20)) | (0xaa << 20),
GAFR2_L);
}
/* 16 bit interface */
else if (!(lccr0 & LCCR0_CMS) && ((lccr0 & LCCR0_SDS) || (lccr0 & LCCR0_PAS)))
{
debug("Setting GPIO for 16 bit data\n");
/* bits 58-77 */
writel(readl(GPDR1) | (0x3f << 26), GPDR1);
writel(readl(GPDR2) | 0x00003fff, GPDR2);
writel((readl(GAFR1_U) & ~(0xfff << 20)) | (0xaaa << 20),
GAFR1_U);
writel((readl(GAFR2_L) & 0xf0000000) | 0x0aaaaaaa, GAFR2_L);
}
else
{
printf("pxafb_setup_gpio: unable to determine bits per pixel\n");
}
}
#endif
static void pxafb_enable_controller (vidinfo_t *vid)
{
debug("Enabling LCD controller\n");
/* Sequence from 11.7.10 */
writel(vid->pxa.reg_lccr3, LCCR3);
writel(vid->pxa.reg_lccr2, LCCR2);
writel(vid->pxa.reg_lccr1, LCCR1);
writel(vid->pxa.reg_lccr0 & ~LCCR0_ENB, LCCR0);
writel(vid->pxa.fdadr0, FDADR0);
writel(vid->pxa.fdadr1, FDADR1);
writel(readl(LCCR0) | LCCR0_ENB, LCCR0);
#ifdef CONFIG_CPU_MONAHANS
writel(readl(CKENA) | CKENA_1_LCD, CKENA);
#else
writel(readl(CKEN) | CKEN16_LCD, CKEN);
#endif
debug("FDADR0 = 0x%08x\n", readl(FDADR0));
debug("FDADR1 = 0x%08x\n", readl(FDADR1));
debug("LCCR0 = 0x%08x\n", readl(LCCR0));
debug("LCCR1 = 0x%08x\n", readl(LCCR1));
debug("LCCR2 = 0x%08x\n", readl(LCCR2));
debug("LCCR3 = 0x%08x\n", readl(LCCR3));
}
static int pxafb_init (vidinfo_t *vid)
{
struct pxafb_info *fbi = &vid->pxa;
debug("Configuring PXA LCD\n");
fbi->reg_lccr0 = REG_LCCR0;
fbi->reg_lccr3 = REG_LCCR3;
debug("vid: vl_col=%d hslen=%d lm=%d rm=%d\n",
vid->vl_col, vid->vl_hpw,
vid->vl_blw, vid->vl_elw);
debug("vid: vl_row=%d vslen=%d um=%d bm=%d\n",
vid->vl_row, vid->vl_vpw,
vid->vl_bfw, vid->vl_efw);
fbi->reg_lccr1 =
LCCR1_DisWdth(vid->vl_col) +
LCCR1_HorSnchWdth(vid->vl_hpw) +
LCCR1_BegLnDel(vid->vl_blw) +
LCCR1_EndLnDel(vid->vl_elw);
fbi->reg_lccr2 =
LCCR2_DisHght(vid->vl_row) +
LCCR2_VrtSnchWdth(vid->vl_vpw) +
LCCR2_BegFrmDel(vid->vl_bfw) +
LCCR2_EndFrmDel(vid->vl_efw);
fbi->reg_lccr3 = REG_LCCR3 & ~(LCCR3_HSP | LCCR3_VSP);
fbi->reg_lccr3 |= (vid->vl_hsp ? LCCR3_HorSnchL : LCCR3_HorSnchH)
| (vid->vl_vsp ? LCCR3_VrtSnchL : LCCR3_VrtSnchH);
/* setup dma descriptors */
fbi->dmadesc_fblow = (struct pxafb_dma_descriptor *)((unsigned int)fbi->palette - 3*16);
fbi->dmadesc_fbhigh = (struct pxafb_dma_descriptor *)((unsigned int)fbi->palette - 2*16);
fbi->dmadesc_palette = (struct pxafb_dma_descriptor *)((unsigned int)fbi->palette - 1*16);
#define BYTES_PER_PANEL ((fbi->reg_lccr0 & LCCR0_SDS) ? \
(vid->vl_col * vid->vl_row * NBITS(vid->vl_bpix) / 8 / 2) : \
(vid->vl_col * vid->vl_row * NBITS(vid->vl_bpix) / 8))
/* populate descriptors */
fbi->dmadesc_fblow->fdadr = (u_long)fbi->dmadesc_fblow;
fbi->dmadesc_fblow->fsadr = fbi->screen + BYTES_PER_PANEL;
fbi->dmadesc_fblow->fidr = 0;
fbi->dmadesc_fblow->ldcmd = BYTES_PER_PANEL;
fbi->fdadr1 = (u_long)fbi->dmadesc_fblow; /* only used in dual-panel mode */
fbi->dmadesc_fbhigh->fsadr = fbi->screen;
fbi->dmadesc_fbhigh->fidr = 0;
fbi->dmadesc_fbhigh->ldcmd = BYTES_PER_PANEL;
fbi->dmadesc_palette->fsadr = fbi->palette;
fbi->dmadesc_palette->fidr = 0;
fbi->dmadesc_palette->ldcmd = (fbi->palette_size * 2) | LDCMD_PAL;
if( NBITS(vid->vl_bpix) < 12)
{
/* assume any mode with <12 bpp is palette driven */
fbi->dmadesc_palette->fdadr = (u_long)fbi->dmadesc_fbhigh;
fbi->dmadesc_fbhigh->fdadr = (u_long)fbi->dmadesc_palette;
/* flips back and forth between pal and fbhigh */
fbi->fdadr0 = (u_long)fbi->dmadesc_palette;
}
else
{
/* palette shouldn't be loaded in true-color mode */
fbi->dmadesc_fbhigh->fdadr = (u_long)fbi->dmadesc_fbhigh;
fbi->fdadr0 = (u_long)fbi->dmadesc_fbhigh; /* no pal just fbhigh */
}
debug("fbi->dmadesc_fblow = 0x%lx\n", (u_long)fbi->dmadesc_fblow);
debug("fbi->dmadesc_fbhigh = 0x%lx\n", (u_long)fbi->dmadesc_fbhigh);
debug("fbi->dmadesc_palette = 0x%lx\n", (u_long)fbi->dmadesc_palette);
debug("fbi->dmadesc_fblow->fdadr = 0x%lx\n", fbi->dmadesc_fblow->fdadr);
debug("fbi->dmadesc_fbhigh->fdadr = 0x%lx\n", fbi->dmadesc_fbhigh->fdadr);
debug("fbi->dmadesc_palette->fdadr = 0x%lx\n", fbi->dmadesc_palette->fdadr);
debug("fbi->dmadesc_fblow->fsadr = 0x%lx\n", fbi->dmadesc_fblow->fsadr);
debug("fbi->dmadesc_fbhigh->fsadr = 0x%lx\n", fbi->dmadesc_fbhigh->fsadr);
debug("fbi->dmadesc_palette->fsadr = 0x%lx\n", fbi->dmadesc_palette->fsadr);
debug("fbi->dmadesc_fblow->ldcmd = 0x%lx\n", fbi->dmadesc_fblow->ldcmd);
debug("fbi->dmadesc_fbhigh->ldcmd = 0x%lx\n", fbi->dmadesc_fbhigh->ldcmd);
debug("fbi->dmadesc_palette->ldcmd = 0x%lx\n", fbi->dmadesc_palette->ldcmd);
return 0;
}
/************************************************************************/
/************************************************************************/
#endif /* CONFIG_LCD */
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