video, sm501: add I/O functions for use on powerpc
- add read/write functions for using this driver
also on powerpc plattforms
Signed-off-by: Heiko Schocher <hs@denx.de>
cc: linux-fbdev@vger.kernel.org
cc: devicetree-discuss@ozlabs.org
cc: Ben Dooks <ben@simtec.co.uk>
cc: Vincent Sanders <vince@simtec.co.uk>
cc: Samuel Ortiz <sameo@linux.intel.com>
cc: linux-kernel@vger.kernel.org
cc: Randy Dunlap <rdunlap@xenotime.net>
cc: Paul Mundt <lethal@linux-sh.org>
Acked-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/drivers/video/sm501fb.c b/drivers/video/sm501fb.c
index bcb44a5..5df406c 100644
--- a/drivers/video/sm501fb.c
+++ b/drivers/video/sm501fb.c
@@ -117,7 +117,7 @@
static inline void sm501fb_sync_regs(struct sm501fb_info *info)
{
- readl(info->regs);
+ smc501_readl(info->regs);
}
/* sm501_alloc_mem
@@ -262,7 +262,7 @@
/* set gamma values */
for (offset = 0; offset < 256 * 4; offset += 4) {
- writel(value, fbi->regs + palette + offset);
+ smc501_writel(value, fbi->regs + palette + offset);
value += 0x010101; /* Advance RGB by 1,1,1.*/
}
}
@@ -476,7 +476,8 @@
/* set start of framebuffer to the screen */
- writel(par->screen.sm_addr | SM501_ADDR_FLIP, fbi->regs + head_addr);
+ smc501_writel(par->screen.sm_addr | SM501_ADDR_FLIP,
+ fbi->regs + head_addr);
/* program CRT clock */
@@ -519,7 +520,7 @@
reg = info->fix.line_length;
reg |= ((var->xres * var->bits_per_pixel)/8) << 16;
- writel(reg, fbi->regs + (par->head == HEAD_CRT ?
+ smc501_writel(reg, fbi->regs + (par->head == HEAD_CRT ?
SM501_DC_CRT_FB_OFFSET : SM501_DC_PANEL_FB_OFFSET));
/* program horizontal total */
@@ -527,27 +528,27 @@
reg = (h_total(var) - 1) << 16;
reg |= (var->xres - 1);
- writel(reg, base + SM501_OFF_DC_H_TOT);
+ smc501_writel(reg, base + SM501_OFF_DC_H_TOT);
/* program horizontal sync */
reg = var->hsync_len << 16;
reg |= var->xres + var->right_margin - 1;
- writel(reg, base + SM501_OFF_DC_H_SYNC);
+ smc501_writel(reg, base + SM501_OFF_DC_H_SYNC);
/* program vertical total */
reg = (v_total(var) - 1) << 16;
reg |= (var->yres - 1);
- writel(reg, base + SM501_OFF_DC_V_TOT);
+ smc501_writel(reg, base + SM501_OFF_DC_V_TOT);
/* program vertical sync */
reg = var->vsync_len << 16;
reg |= var->yres + var->lower_margin - 1;
- writel(reg, base + SM501_OFF_DC_V_SYNC);
+ smc501_writel(reg, base + SM501_OFF_DC_V_SYNC);
}
/* sm501fb_pan_crt
@@ -566,15 +567,15 @@
xoffs = var->xoffset * bytes_pixel;
- reg = readl(fbi->regs + SM501_DC_CRT_CONTROL);
+ reg = smc501_readl(fbi->regs + SM501_DC_CRT_CONTROL);
reg &= ~SM501_DC_CRT_CONTROL_PIXEL_MASK;
reg |= ((xoffs & 15) / bytes_pixel) << 4;
- writel(reg, fbi->regs + SM501_DC_CRT_CONTROL);
+ smc501_writel(reg, fbi->regs + SM501_DC_CRT_CONTROL);
reg = (par->screen.sm_addr + xoffs +
var->yoffset * info->fix.line_length);
- writel(reg | SM501_ADDR_FLIP, fbi->regs + SM501_DC_CRT_FB_ADDR);
+ smc501_writel(reg | SM501_ADDR_FLIP, fbi->regs + SM501_DC_CRT_FB_ADDR);
sm501fb_sync_regs(fbi);
return 0;
@@ -593,10 +594,10 @@
unsigned long reg;
reg = var->xoffset | (var->xres_virtual << 16);
- writel(reg, fbi->regs + SM501_DC_PANEL_FB_WIDTH);
+ smc501_writel(reg, fbi->regs + SM501_DC_PANEL_FB_WIDTH);
reg = var->yoffset | (var->yres_virtual << 16);
- writel(reg, fbi->regs + SM501_DC_PANEL_FB_HEIGHT);
+ smc501_writel(reg, fbi->regs + SM501_DC_PANEL_FB_HEIGHT);
sm501fb_sync_regs(fbi);
return 0;
@@ -622,7 +623,7 @@
/* enable CRT DAC - note 0 is on!*/
sm501_misc_control(fbi->dev->parent, 0, SM501_MISC_DAC_POWER);
- control = readl(fbi->regs + SM501_DC_CRT_CONTROL);
+ control = smc501_readl(fbi->regs + SM501_DC_CRT_CONTROL);
control &= (SM501_DC_CRT_CONTROL_PIXEL_MASK |
SM501_DC_CRT_CONTROL_GAMMA |
@@ -684,7 +685,7 @@
out_update:
dev_dbg(fbi->dev, "new control is %08lx\n", control);
- writel(control, fbi->regs + SM501_DC_CRT_CONTROL);
+ smc501_writel(control, fbi->regs + SM501_DC_CRT_CONTROL);
sm501fb_sync_regs(fbi);
return 0;
@@ -696,18 +697,18 @@
void __iomem *ctrl_reg = fbi->regs + SM501_DC_PANEL_CONTROL;
struct sm501_platdata_fbsub *pd = fbi->pdata->fb_pnl;
- control = readl(ctrl_reg);
+ control = smc501_readl(ctrl_reg);
if (to && (control & SM501_DC_PANEL_CONTROL_VDD) == 0) {
/* enable panel power */
control |= SM501_DC_PANEL_CONTROL_VDD; /* FPVDDEN */
- writel(control, ctrl_reg);
+ smc501_writel(control, ctrl_reg);
sm501fb_sync_regs(fbi);
mdelay(10);
control |= SM501_DC_PANEL_CONTROL_DATA; /* DATA */
- writel(control, ctrl_reg);
+ smc501_writel(control, ctrl_reg);
sm501fb_sync_regs(fbi);
mdelay(10);
@@ -719,7 +720,7 @@
else
control |= SM501_DC_PANEL_CONTROL_BIAS;
- writel(control, ctrl_reg);
+ smc501_writel(control, ctrl_reg);
sm501fb_sync_regs(fbi);
mdelay(10);
}
@@ -730,7 +731,7 @@
else
control |= SM501_DC_PANEL_CONTROL_FPEN;
- writel(control, ctrl_reg);
+ smc501_writel(control, ctrl_reg);
sm501fb_sync_regs(fbi);
mdelay(10);
}
@@ -742,7 +743,7 @@
else
control &= ~SM501_DC_PANEL_CONTROL_FPEN;
- writel(control, ctrl_reg);
+ smc501_writel(control, ctrl_reg);
sm501fb_sync_regs(fbi);
mdelay(10);
}
@@ -753,18 +754,18 @@
else
control &= ~SM501_DC_PANEL_CONTROL_BIAS;
- writel(control, ctrl_reg);
+ smc501_writel(control, ctrl_reg);
sm501fb_sync_regs(fbi);
mdelay(10);
}
control &= ~SM501_DC_PANEL_CONTROL_DATA;
- writel(control, ctrl_reg);
+ smc501_writel(control, ctrl_reg);
sm501fb_sync_regs(fbi);
mdelay(10);
control &= ~SM501_DC_PANEL_CONTROL_VDD;
- writel(control, ctrl_reg);
+ smc501_writel(control, ctrl_reg);
sm501fb_sync_regs(fbi);
mdelay(10);
}
@@ -799,7 +800,7 @@
/* update control register */
- control = readl(fbi->regs + SM501_DC_PANEL_CONTROL);
+ control = smc501_readl(fbi->regs + SM501_DC_PANEL_CONTROL);
control &= (SM501_DC_PANEL_CONTROL_GAMMA |
SM501_DC_PANEL_CONTROL_VDD |
SM501_DC_PANEL_CONTROL_DATA |
@@ -833,16 +834,16 @@
BUG();
}
- writel(0x0, fbi->regs + SM501_DC_PANEL_PANNING_CONTROL);
+ smc501_writel(0x0, fbi->regs + SM501_DC_PANEL_PANNING_CONTROL);
/* panel plane top left and bottom right location */
- writel(0x00, fbi->regs + SM501_DC_PANEL_TL_LOC);
+ smc501_writel(0x00, fbi->regs + SM501_DC_PANEL_TL_LOC);
reg = var->xres - 1;
reg |= (var->yres - 1) << 16;
- writel(reg, fbi->regs + SM501_DC_PANEL_BR_LOC);
+ smc501_writel(reg, fbi->regs + SM501_DC_PANEL_BR_LOC);
/* program panel control register */
@@ -855,7 +856,7 @@
if ((var->sync & FB_SYNC_VERT_HIGH_ACT) == 0)
control |= SM501_DC_PANEL_CONTROL_VSP;
- writel(control, fbi->regs + SM501_DC_PANEL_CONTROL);
+ smc501_writel(control, fbi->regs + SM501_DC_PANEL_CONTROL);
sm501fb_sync_regs(fbi);
/* ensure the panel interface is not tristated at this point */
@@ -924,7 +925,7 @@
val |= (green >> 8) << 8;
val |= blue >> 8;
- writel(val, base + (regno * 4));
+ smc501_writel(val, base + (regno * 4));
}
break;
@@ -980,7 +981,7 @@
dev_dbg(fbi->dev, "%s(mode=%d, %p)\n", __func__, blank_mode, info);
- ctrl = readl(fbi->regs + SM501_DC_CRT_CONTROL);
+ ctrl = smc501_readl(fbi->regs + SM501_DC_CRT_CONTROL);
switch (blank_mode) {
case FB_BLANK_POWERDOWN:
@@ -1004,7 +1005,7 @@
}
- writel(ctrl, fbi->regs + SM501_DC_CRT_CONTROL);
+ smc501_writel(ctrl, fbi->regs + SM501_DC_CRT_CONTROL);
sm501fb_sync_regs(fbi);
return 0;
@@ -1041,12 +1042,14 @@
if (cursor->image.depth > 1)
return -EINVAL;
- hwc_addr = readl(base + SM501_OFF_HWC_ADDR);
+ hwc_addr = smc501_readl(base + SM501_OFF_HWC_ADDR);
if (cursor->enable)
- writel(hwc_addr | SM501_HWC_EN, base + SM501_OFF_HWC_ADDR);
+ smc501_writel(hwc_addr | SM501_HWC_EN,
+ base + SM501_OFF_HWC_ADDR);
else
- writel(hwc_addr & ~SM501_HWC_EN, base + SM501_OFF_HWC_ADDR);
+ smc501_writel(hwc_addr & ~SM501_HWC_EN,
+ base + SM501_OFF_HWC_ADDR);
/* set data */
if (cursor->set & FB_CUR_SETPOS) {
@@ -1060,7 +1063,7 @@
//y += cursor->image.height;
- writel(x | (y << 16), base + SM501_OFF_HWC_LOC);
+ smc501_writel(x | (y << 16), base + SM501_OFF_HWC_LOC);
}
if (cursor->set & FB_CUR_SETCMAP) {
@@ -1080,8 +1083,8 @@
dev_dbg(fbi->dev, "fgcol %08lx, bgcol %08lx\n", fg, bg);
- writel(bg, base + SM501_OFF_HWC_COLOR_1_2);
- writel(fg, base + SM501_OFF_HWC_COLOR_3);
+ smc501_writel(bg, base + SM501_OFF_HWC_COLOR_1_2);
+ smc501_writel(fg, base + SM501_OFF_HWC_COLOR_3);
}
if (cursor->set & FB_CUR_SETSIZE ||
@@ -1102,7 +1105,7 @@
__func__, cursor->image.width, cursor->image.height);
for (op = 0; op < (64*64*2)/8; op+=4)
- writel(0x0, dst + op);
+ smc501_writel(0x0, dst + op);
for (y = 0; y < cursor->image.height; y++) {
for (x = 0; x < cursor->image.width; x++) {
@@ -1141,7 +1144,7 @@
struct sm501fb_info *info = dev_get_drvdata(dev);
unsigned long ctrl;
- ctrl = readl(info->regs + SM501_DC_CRT_CONTROL);
+ ctrl = smc501_readl(info->regs + SM501_DC_CRT_CONTROL);
ctrl &= SM501_DC_CRT_CONTROL_SEL;
return snprintf(buf, PAGE_SIZE, "%s\n", ctrl ? "crt" : "panel");
@@ -1172,7 +1175,7 @@
dev_info(dev, "setting crt source to head %d\n", head);
- ctrl = readl(info->regs + SM501_DC_CRT_CONTROL);
+ ctrl = smc501_readl(info->regs + SM501_DC_CRT_CONTROL);
if (head == HEAD_CRT) {
ctrl |= SM501_DC_CRT_CONTROL_SEL;
@@ -1184,7 +1187,7 @@
ctrl &= ~SM501_DC_CRT_CONTROL_TE;
}
- writel(ctrl, info->regs + SM501_DC_CRT_CONTROL);
+ smc501_writel(ctrl, info->regs + SM501_DC_CRT_CONTROL);
sm501fb_sync_regs(info);
return len;
@@ -1205,7 +1208,8 @@
unsigned int reg;
for (reg = start; reg < (len + start); reg += 4)
- ptr += sprintf(ptr, "%08x = %08x\n", reg, readl(mem + reg));
+ ptr += sprintf(ptr, "%08x = %08x\n", reg,
+ smc501_readl(mem + reg));
return ptr - buf;
}
@@ -1257,7 +1261,7 @@
/* wait for the 2d engine to be ready */
while ((count > 0) &&
- (readl(fbi->regs + SM501_SYSTEM_CONTROL) &
+ (smc501_readl(fbi->regs + SM501_SYSTEM_CONTROL) &
SM501_SYSCTRL_2D_ENGINE_STATUS) != 0)
count--;
@@ -1312,45 +1316,46 @@
return;
/* set the base addresses */
- writel(par->screen.sm_addr, fbi->regs2d + SM501_2D_SOURCE_BASE);
- writel(par->screen.sm_addr, fbi->regs2d + SM501_2D_DESTINATION_BASE);
+ smc501_writel(par->screen.sm_addr, fbi->regs2d + SM501_2D_SOURCE_BASE);
+ smc501_writel(par->screen.sm_addr,
+ fbi->regs2d + SM501_2D_DESTINATION_BASE);
/* set the window width */
- writel((info->var.xres << 16) | info->var.xres,
+ smc501_writel((info->var.xres << 16) | info->var.xres,
fbi->regs2d + SM501_2D_WINDOW_WIDTH);
/* set window stride */
- writel((info->var.xres_virtual << 16) | info->var.xres_virtual,
+ smc501_writel((info->var.xres_virtual << 16) | info->var.xres_virtual,
fbi->regs2d + SM501_2D_PITCH);
/* set data format */
switch (info->var.bits_per_pixel) {
case 8:
- writel(0, fbi->regs2d + SM501_2D_STRETCH);
+ smc501_writel(0, fbi->regs2d + SM501_2D_STRETCH);
break;
case 16:
- writel(0x00100000, fbi->regs2d + SM501_2D_STRETCH);
+ smc501_writel(0x00100000, fbi->regs2d + SM501_2D_STRETCH);
break;
case 32:
- writel(0x00200000, fbi->regs2d + SM501_2D_STRETCH);
+ smc501_writel(0x00200000, fbi->regs2d + SM501_2D_STRETCH);
break;
}
/* 2d compare mask */
- writel(0xffffffff, fbi->regs2d + SM501_2D_COLOR_COMPARE_MASK);
+ smc501_writel(0xffffffff, fbi->regs2d + SM501_2D_COLOR_COMPARE_MASK);
/* 2d mask */
- writel(0xffffffff, fbi->regs2d + SM501_2D_MASK);
+ smc501_writel(0xffffffff, fbi->regs2d + SM501_2D_MASK);
/* source and destination x y */
- writel((sx << 16) | sy, fbi->regs2d + SM501_2D_SOURCE);
- writel((dx << 16) | dy, fbi->regs2d + SM501_2D_DESTINATION);
+ smc501_writel((sx << 16) | sy, fbi->regs2d + SM501_2D_SOURCE);
+ smc501_writel((dx << 16) | dy, fbi->regs2d + SM501_2D_DESTINATION);
/* w/h */
- writel((width << 16) | height, fbi->regs2d + SM501_2D_DIMENSION);
+ smc501_writel((width << 16) | height, fbi->regs2d + SM501_2D_DIMENSION);
/* do area move */
- writel(0x800000cc | rtl, fbi->regs2d + SM501_2D_CONTROL);
+ smc501_writel(0x800000cc | rtl, fbi->regs2d + SM501_2D_CONTROL);
}
static void sm501fb_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
@@ -1372,47 +1377,49 @@
return;
/* set the base addresses */
- writel(par->screen.sm_addr, fbi->regs2d + SM501_2D_SOURCE_BASE);
- writel(par->screen.sm_addr, fbi->regs2d + SM501_2D_DESTINATION_BASE);
+ smc501_writel(par->screen.sm_addr, fbi->regs2d + SM501_2D_SOURCE_BASE);
+ smc501_writel(par->screen.sm_addr,
+ fbi->regs2d + SM501_2D_DESTINATION_BASE);
/* set the window width */
- writel((info->var.xres << 16) | info->var.xres,
+ smc501_writel((info->var.xres << 16) | info->var.xres,
fbi->regs2d + SM501_2D_WINDOW_WIDTH);
/* set window stride */
- writel((info->var.xres_virtual << 16) | info->var.xres_virtual,
+ smc501_writel((info->var.xres_virtual << 16) | info->var.xres_virtual,
fbi->regs2d + SM501_2D_PITCH);
/* set data format */
switch (info->var.bits_per_pixel) {
case 8:
- writel(0, fbi->regs2d + SM501_2D_STRETCH);
+ smc501_writel(0, fbi->regs2d + SM501_2D_STRETCH);
break;
case 16:
- writel(0x00100000, fbi->regs2d + SM501_2D_STRETCH);
+ smc501_writel(0x00100000, fbi->regs2d + SM501_2D_STRETCH);
break;
case 32:
- writel(0x00200000, fbi->regs2d + SM501_2D_STRETCH);
+ smc501_writel(0x00200000, fbi->regs2d + SM501_2D_STRETCH);
break;
}
/* 2d compare mask */
- writel(0xffffffff, fbi->regs2d + SM501_2D_COLOR_COMPARE_MASK);
+ smc501_writel(0xffffffff, fbi->regs2d + SM501_2D_COLOR_COMPARE_MASK);
/* 2d mask */
- writel(0xffffffff, fbi->regs2d + SM501_2D_MASK);
+ smc501_writel(0xffffffff, fbi->regs2d + SM501_2D_MASK);
/* colour */
- writel(rect->color, fbi->regs2d + SM501_2D_FOREGROUND);
+ smc501_writel(rect->color, fbi->regs2d + SM501_2D_FOREGROUND);
/* x y */
- writel((rect->dx << 16) | rect->dy, fbi->regs2d + SM501_2D_DESTINATION);
+ smc501_writel((rect->dx << 16) | rect->dy,
+ fbi->regs2d + SM501_2D_DESTINATION);
/* w/h */
- writel((width << 16) | height, fbi->regs2d + SM501_2D_DIMENSION);
+ smc501_writel((width << 16) | height, fbi->regs2d + SM501_2D_DIMENSION);
/* do rectangle fill */
- writel(0x800100cc, fbi->regs2d + SM501_2D_CONTROL);
+ smc501_writel(0x800100cc, fbi->regs2d + SM501_2D_CONTROL);
}
@@ -1470,11 +1477,12 @@
/* initialise the colour registers */
- writel(par->cursor.sm_addr, par->cursor_regs + SM501_OFF_HWC_ADDR);
+ smc501_writel(par->cursor.sm_addr,
+ par->cursor_regs + SM501_OFF_HWC_ADDR);
- writel(0x00, par->cursor_regs + SM501_OFF_HWC_LOC);
- writel(0x00, par->cursor_regs + SM501_OFF_HWC_COLOR_1_2);
- writel(0x00, par->cursor_regs + SM501_OFF_HWC_COLOR_3);
+ smc501_writel(0x00, par->cursor_regs + SM501_OFF_HWC_LOC);
+ smc501_writel(0x00, par->cursor_regs + SM501_OFF_HWC_COLOR_1_2);
+ smc501_writel(0x00, par->cursor_regs + SM501_OFF_HWC_COLOR_3);
sm501fb_sync_regs(info);
return 0;
@@ -1581,7 +1589,7 @@
/* clear palette ram - undefined at power on */
for (k = 0; k < (256 * 3); k++)
- writel(0, info->regs + SM501_DC_PANEL_PALETTE + (k * 4));
+ smc501_writel(0, info->regs + SM501_DC_PANEL_PALETTE + (k * 4));
/* enable display controller */
sm501_unit_power(dev->parent, SM501_GATE_DISPLAY, 1);
@@ -1649,20 +1657,20 @@
switch (head) {
case HEAD_CRT:
pd = info->pdata->fb_crt;
- ctrl = readl(info->regs + SM501_DC_CRT_CONTROL);
+ ctrl = smc501_readl(info->regs + SM501_DC_CRT_CONTROL);
enable = (ctrl & SM501_DC_CRT_CONTROL_ENABLE) ? 1 : 0;
/* ensure we set the correct source register */
if (info->pdata->fb_route != SM501_FB_CRT_PANEL) {
ctrl |= SM501_DC_CRT_CONTROL_SEL;
- writel(ctrl, info->regs + SM501_DC_CRT_CONTROL);
+ smc501_writel(ctrl, info->regs + SM501_DC_CRT_CONTROL);
}
break;
case HEAD_PANEL:
pd = info->pdata->fb_pnl;
- ctrl = readl(info->regs + SM501_DC_PANEL_CONTROL);
+ ctrl = smc501_readl(info->regs + SM501_DC_PANEL_CONTROL);
enable = (ctrl & SM501_DC_PANEL_CONTROL_EN) ? 1 : 0;
break;
@@ -1680,7 +1688,7 @@
if (head == HEAD_CRT && info->pdata->fb_route == SM501_FB_CRT_PANEL) {
ctrl &= ~SM501_DC_CRT_CONTROL_SEL;
- writel(ctrl, info->regs + SM501_DC_CRT_CONTROL);
+ smc501_writel(ctrl, info->regs + SM501_DC_CRT_CONTROL);
enable = 0;
}
@@ -2085,7 +2093,7 @@
struct sm501fb_info *info = platform_get_drvdata(pdev);
/* store crt control to resume with */
- info->pm_crt_ctrl = readl(info->regs + SM501_DC_CRT_CONTROL);
+ info->pm_crt_ctrl = smc501_readl(info->regs + SM501_DC_CRT_CONTROL);
sm501fb_suspend_fb(info, HEAD_CRT);
sm501fb_suspend_fb(info, HEAD_PANEL);
@@ -2109,10 +2117,10 @@
/* restore the items we want to be saved for crt control */
- crt_ctrl = readl(info->regs + SM501_DC_CRT_CONTROL);
+ crt_ctrl = smc501_readl(info->regs + SM501_DC_CRT_CONTROL);
crt_ctrl &= ~SM501_CRT_CTRL_SAVE;
crt_ctrl |= info->pm_crt_ctrl & SM501_CRT_CTRL_SAVE;
- writel(crt_ctrl, info->regs + SM501_DC_CRT_CONTROL);
+ smc501_writel(crt_ctrl, info->regs + SM501_DC_CRT_CONTROL);
sm501fb_resume_fb(info, HEAD_CRT);
sm501fb_resume_fb(info, HEAD_PANEL);