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fsl-diu: Using I/O accessor to CCSR space 

Using PPC I/O accessor to DIU I/O space instead of directly
read/write. It will prevent the dozen of compiler order issue
and PPC hardware order issue for accessing I/O space.

Using the toolchain(tc-fsl-x86lnx-e500-dp-4.3.74-2.i386.rpm)
can show up the order issue of DIU driver.

Signed-off-by: Dave Liu <daveliu@freescale.com>
Signed-off-by: Jerry Huang <Chang-Ming.Huang@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
This commit is contained in:
Jerry Huang 2010-04-08 15:56:07 +08:00 committed by Kumar Gala
parent ab92d0fd9a
commit 1535185577
1 changed files with 28 additions and 27 deletions
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55
board/freescale/common/fsl_diu_fb.c
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@ -1,5 +1,5 @@
/*
* Copyright 2007 Freescale Semiconductor, Inc.
* Copyright 2007, 2010 Freescale Semiconductor, Inc.
* York Sun <yorksun@freescale.com>
*
* FSL DIU Framebuffer driver
@ -26,6 +26,7 @@
#include <common.h>
#include <i2c.h>
#include <malloc.h>
#include <asm/io.h>
#include "fsl_diu_fb.h"
@ -267,9 +268,9 @@ int fsl_diu_init(int xres,
memset(info->screen_base, 0, info->smem_len);
dr.diu_reg->desc[0] = (unsigned int) &dummy_ad;
dr.diu_reg->desc[1] = (unsigned int) &dummy_ad;
dr.diu_reg->desc[2] = (unsigned int) &dummy_ad;
out_be32(&dr.diu_reg->desc[0], &dummy_ad);
out_be32(&dr.diu_reg->desc[1], &dummy_ad);
out_be32(&dr.diu_reg->desc[2], &dummy_ad);
debug("dummy dr.diu_reg->desc[0] = 0x%x\n", dr.diu_reg->desc[0]);
debug("dummy desc[0] = 0x%x\n", hw->desc[0]);
@ -331,26 +332,26 @@ int fsl_diu_init(int xres,
/* Program DIU registers */
hw->gamma = (unsigned int) gamma.paddr;
hw->cursor= (unsigned int) cursor.paddr;
hw->bgnd = 0x007F7F7F; /* BGND */
hw->bgnd_wb = 0; /* BGND_WB */
hw->disp_size = var->yres << 16 | var->xres; /* DISP SIZE */
hw->wb_size = 0; /* WB SIZE */
hw->wb_mem_addr = 0; /* WB MEM ADDR */
hw->hsyn_para = var->left_margin << 22 | /* BP_H */
out_be32(&hw->gamma, gamma.paddr);
out_be32(&hw->cursor, cursor.paddr);
out_be32(&hw->bgnd, 0x007F7F7F);
out_be32(&hw->bgnd_wb, 0); /* BGND_WB */
out_be32(&hw->disp_size, var->yres << 16 | var->xres); /* DISP SIZE */
out_be32(&hw->wb_size, 0); /* WB SIZE */
out_be32(&hw->wb_mem_addr, 0); /* WB MEM ADDR */
out_be32(&hw->hsyn_para, var->left_margin << 22 | /* BP_H */
var->hsync_len << 11 | /* PW_H */
var->right_margin; /* FP_H */
hw->vsyn_para = var->upper_margin << 22 | /* BP_V */
var->right_margin); /* FP_H */
out_be32(&hw->vsyn_para, var->upper_margin << 22 | /* BP_V */
var->vsync_len << 11 | /* PW_V */
var->lower_margin; /* FP_V */
hw->syn_pol = 0; /* SYNC SIGNALS POLARITY */
hw->thresholds = 0x00037800; /* The Thresholds */
hw->int_status = 0; /* INTERRUPT STATUS */
hw->int_mask = 0; /* INT MASK */
hw->plut = 0x01F5F666;
var->lower_margin); /* FP_V */
out_be32(&hw->syn_pol, 0); /* SYNC SIGNALS POLARITY */
out_be32(&hw->thresholds, 0x00037800); /* The Thresholds */
out_be32(&hw->int_status, 0); /* INTERRUPT STATUS */
out_be32(&hw->int_mask, 0); /* INT MASK */
out_be32(&hw->plut, 0x01F5F666);
/* Pixel Clock configuration */
debug("DIU pixclock in ps - %d\n", var->pixclock);
diu_set_pixel_clock(var->pixclock);
@ -390,8 +391,8 @@ static int fsl_diu_enable_panel(struct fb_info *info)
struct diu_ad *ad = &fsl_diu_fb_ad;
debug("Entered: enable_panel\n");
if (hw->desc[0] != (unsigned int)ad)
hw->desc[0] = (unsigned int)ad;
if (in_be32(&hw->desc[0]) != (u32)ad)
out_be32(&hw->desc[0], ad);
debug("desc[0] = 0x%x\n", hw->desc[0]);
return 0;
}
@ -401,8 +402,8 @@ static int fsl_diu_disable_panel(struct fb_info *info)
struct diu *hw = dr.diu_reg;
debug("Entered: disable_panel\n");
if (hw->desc[0] != (unsigned int)&dummy_ad)
hw->desc[0] = (unsigned int)&dummy_ad;
if (in_be32(&hw->desc[0]) != (u32)&dummy_ad)
out_be32(&hw->desc[0], &dummy_ad);
return 0;
}
@ -443,7 +444,7 @@ static void enable_lcdc(void)
debug("Entered: enable_lcdc, fb_enabled = %d\n", fb_enabled);
if (!fb_enabled) {
hw->diu_mode = dr.mode;
out_be32(&hw->diu_mode, dr.mode);
fb_enabled++;
}
debug("diu_mode = %d\n", hw->diu_mode);
@ -455,7 +456,7 @@ static void disable_lcdc(void)
debug("Entered: disable_lcdc, fb_enabled = %d\n", fb_enabled);
if (fb_enabled) {
hw->diu_mode = 0;
out_be32(&hw->diu_mode, 0);
fb_enabled = 0;
}
}