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-rw-r--r--board/freescale/common/Makefile1
-rw-r--r--board/freescale/common/fsl_diu_fb.c513
-rw-r--r--board/freescale/mpc8641hpcn/mpc8641hpcn.c3
-rw-r--r--board/freescale/p1022ds/diu.c67
-rw-r--r--board/freescale/p2020ds/p2020ds.c3
5 files changed, 57 insertions, 530 deletions
diff --git a/board/freescale/common/Makefile b/board/freescale/common/Makefile
index 905dd7a..1abd3e5 100644
--- a/board/freescale/common/Makefile
+++ b/board/freescale/common/Makefile
@@ -31,7 +31,6 @@ LIB = $(obj)libfreescale.o
COBJS-$(CONFIG_FSL_CADMUS) += cadmus.o
COBJS-$(CONFIG_FSL_VIA) += cds_via.o
-COBJS-$(CONFIG_FSL_DIU_FB) += fsl_diu_fb.o
COBJS-$(CONFIG_FSL_PIXIS) += pixis.o
COBJS-$(CONFIG_FSL_NGPIXIS) += ngpixis.o
COBJS-$(CONFIG_PQ_MDS_PIB) += pq-mds-pib.o
diff --git a/board/freescale/common/fsl_diu_fb.c b/board/freescale/common/fsl_diu_fb.c
deleted file mode 100644
index 35ed938..0000000
--- a/board/freescale/common/fsl_diu_fb.c
+++ /dev/null
@@ -1,513 +0,0 @@
-/*
- * Copyright 2007, 2010 Freescale Semiconductor, Inc.
- * York Sun <yorksun@freescale.com>
- *
- * FSL DIU Framebuffer driver
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-
-#include <common.h>
-#include <i2c.h>
-#include <malloc.h>
-#include <asm/io.h>
-
-#include <fsl_diu_fb.h>
-
-struct fb_videomode {
- const char *name; /* optional */
- unsigned int refresh; /* optional */
- unsigned int xres;
- unsigned int yres;
- unsigned int pixclock;
- unsigned int left_margin;
- unsigned int right_margin;
- unsigned int upper_margin;
- unsigned int lower_margin;
- unsigned int hsync_len;
- unsigned int vsync_len;
- unsigned int sync;
- unsigned int vmode;
- unsigned int flag;
-};
-
-#define FB_SYNC_VERT_HIGH_ACT 2 /* vertical sync high active */
-#define FB_SYNC_COMP_HIGH_ACT 8 /* composite sync high active */
-#define FB_VMODE_NONINTERLACED 0 /* non interlaced */
-
-/* This setting is used for the ifm pdm360ng with PRIMEVIEW PM070WL3 */
-static struct fb_videomode fsl_diu_mode_800 = {
- .refresh = 60,
- .xres = 800,
- .yres = 480,
- .pixclock = 31250,
- .left_margin = 86,
- .right_margin = 42,
- .upper_margin = 33,
- .lower_margin = 10,
- .hsync_len = 128,
- .vsync_len = 2,
- .sync = 0,
- .vmode = FB_VMODE_NONINTERLACED
-};
-
-/*
- * These parameters give default parameters
- * for video output 1024x768,
- * FIXME - change timing to proper amounts
- * hsync 31.5kHz, vsync 60Hz
- */
-static struct fb_videomode fsl_diu_mode_1024 = {
- .refresh = 60,
- .xres = 1024,
- .yres = 768,
- .pixclock = 15385,
- .left_margin = 160,
- .right_margin = 24,
- .upper_margin = 29,
- .lower_margin = 3,
- .hsync_len = 136,
- .vsync_len = 6,
- .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
- .vmode = FB_VMODE_NONINTERLACED
-};
-
-static struct fb_videomode fsl_diu_mode_1280 = {
- .name = "1280x1024-60",
- .refresh = 60,
- .xres = 1280,
- .yres = 1024,
- .pixclock = 9375,
- .left_margin = 38,
- .right_margin = 128,
- .upper_margin = 2,
- .lower_margin = 7,
- .hsync_len = 216,
- .vsync_len = 37,
- .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
- .vmode = FB_VMODE_NONINTERLACED
-};
-
-/*
- * These are the fields of area descriptor(in DDR memory) for every plane
- */
-struct diu_ad {
- /* Word 0(32-bit) in DDR memory */
- unsigned int pix_fmt; /* hard coding pixel format */
- /* Word 1(32-bit) in DDR memory */
- unsigned int addr;
- /* Word 2(32-bit) in DDR memory */
- unsigned int src_size_g_alpha;
- /* Word 3(32-bit) in DDR memory */
- unsigned int aoi_size;
- /* Word 4(32-bit) in DDR memory */
- unsigned int offset_xyi;
- /* Word 5(32-bit) in DDR memory */
- unsigned int offset_xyd;
- /* Word 6(32-bit) in DDR memory */
- unsigned int ckmax_r:8;
- unsigned int ckmax_g:8;
- unsigned int ckmax_b:8;
- unsigned int res9:8;
- /* Word 7(32-bit) in DDR memory */
- unsigned int ckmin_r:8;
- unsigned int ckmin_g:8;
- unsigned int ckmin_b:8;
- unsigned int res10:8;
- /* Word 8(32-bit) in DDR memory */
- unsigned int next_ad;
- /* Word 9(32-bit) in DDR memory, just for 64-bit aligned */
- unsigned int res1;
- unsigned int res2;
- unsigned int res3;
-}__attribute__ ((packed));
-
-/*
- * DIU register map
- */
-struct diu {
- unsigned int desc[3];
- unsigned int gamma;
- unsigned int pallete;
- unsigned int cursor;
- unsigned int curs_pos;
- unsigned int diu_mode;
- unsigned int bgnd;
- unsigned int bgnd_wb;
- unsigned int disp_size;
- unsigned int wb_size;
- unsigned int wb_mem_addr;
- unsigned int hsyn_para;
- unsigned int vsyn_para;
- unsigned int syn_pol;
- unsigned int thresholds;
- unsigned int int_status;
- unsigned int int_mask;
- unsigned int colorbar[8];
- unsigned int filling;
- unsigned int plut;
-} __attribute__ ((packed));
-
-struct diu_hw {
- struct diu *diu_reg;
- volatile unsigned int mode; /* DIU operation mode */
-};
-
-struct diu_addr {
- unsigned char * paddr; /* Virtual address */
- unsigned int offset;
-};
-
-/*
- * Modes of operation of DIU
- */
-#define MFB_MODE0 0 /* DIU off */
-#define MFB_MODE1 1 /* All three planes output to display */
-#define MFB_MODE2 2 /* Plane 1 to display,
- * planes 2+3 written back to memory */
-#define MFB_MODE3 3 /* All three planes written back to memory */
-#define MFB_MODE4 4 /* Color bar generation */
-
-#define MAX_CURS 32
-
-static struct fb_info fsl_fb_info;
-static struct diu_addr gamma, cursor;
-static struct diu_ad fsl_diu_fb_ad __attribute__ ((aligned(32)));
-static struct diu_ad dummy_ad __attribute__ ((aligned(32)));
-static unsigned char *dummy_fb;
-static struct diu_hw dr = {
- .mode = MFB_MODE1,
-};
-
-int fb_enabled = 0;
-int fb_initialized = 0;
-const int default_xres = 1280;
-const int default_pixel_format = 0x88882317;
-
-static int map_video_memory(struct fb_info *info, unsigned long bytes_align);
-static void enable_lcdc(void);
-static void disable_lcdc(void);
-static int fsl_diu_enable_panel(struct fb_info *info);
-static int fsl_diu_disable_panel(struct fb_info *info);
-static int allocate_buf(struct diu_addr *buf, u32 size, u32 bytes_align);
-void diu_set_pixel_clock(unsigned int pixclock);
-
-int fsl_diu_init(int xres, unsigned int pixel_format, int gamma_fix)
-{
- struct fb_videomode *fsl_diu_mode_db;
- struct diu_ad *ad = &fsl_diu_fb_ad;
- struct diu *hw;
- struct fb_info *info = &fsl_fb_info;
- struct fb_var_screeninfo *var = &info->var;
- unsigned char *gamma_table_base;
- unsigned int i, j;
-
- debug("Enter fsl_diu_init\n");
- dr.diu_reg = (struct diu *) (CONFIG_SYS_DIU_ADDR);
- hw = (struct diu *) dr.diu_reg;
-
- disable_lcdc();
-
- switch (xres) {
- case 800:
- fsl_diu_mode_db = &fsl_diu_mode_800;
- break;
- case 1280:
- fsl_diu_mode_db = &fsl_diu_mode_1280;
- break;
- default:
- fsl_diu_mode_db = &fsl_diu_mode_1024;
- }
-
- if (0 == fb_initialized) {
- allocate_buf(&gamma, 768, 32);
- debug("gamma is allocated @ 0x%x\n",
- (unsigned int)gamma.paddr);
- allocate_buf(&cursor, MAX_CURS * MAX_CURS * 2, 32);
- debug("curosr is allocated @ 0x%x\n",
- (unsigned int)cursor.paddr);
-
- /* create a dummy fb and dummy ad */
- dummy_fb = malloc(64);
- if (NULL == dummy_fb) {
- printf("Cannot allocate dummy fb\n");
- return -1;
- }
- dummy_ad.addr = cpu_to_le32((unsigned int)dummy_fb);
- dummy_ad.pix_fmt = 0x88882317;
- dummy_ad.src_size_g_alpha = 0x04400000; /* alpha = 0 */
- dummy_ad.aoi_size = 0x02000400;
- dummy_ad.offset_xyi = 0;
- dummy_ad.offset_xyd = 0;
- dummy_ad.next_ad = 0;
- /* Memory allocation for framebuffer */
- if (map_video_memory(info, 32)) {
- printf("Unable to allocate fb memory 1\n");
- return -1;
- }
- }
-
- memset(info->screen_base, 0, info->smem_len);
-
- out_be32(&dr.diu_reg->desc[0], (int)&dummy_ad);
- out_be32(&dr.diu_reg->desc[1], (int)&dummy_ad);
- out_be32(&dr.diu_reg->desc[2], (int)&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]);
-
- /* read mode info */
- var->xres = fsl_diu_mode_db->xres;
- var->yres = fsl_diu_mode_db->yres;
- var->bits_per_pixel = 32;
- var->pixclock = fsl_diu_mode_db->pixclock;
- var->left_margin = fsl_diu_mode_db->left_margin;
- var->right_margin = fsl_diu_mode_db->right_margin;
- var->upper_margin = fsl_diu_mode_db->upper_margin;
- var->lower_margin = fsl_diu_mode_db->lower_margin;
- var->hsync_len = fsl_diu_mode_db->hsync_len;
- var->vsync_len = fsl_diu_mode_db->vsync_len;
- var->sync = fsl_diu_mode_db->sync;
- var->vmode = fsl_diu_mode_db->vmode;
- info->line_length = var->xres * var->bits_per_pixel / 8;
-
- ad->pix_fmt = pixel_format;
- ad->addr = cpu_to_le32((unsigned int)info->screen_base);
- ad->src_size_g_alpha
- = cpu_to_le32((var->yres << 12) | var->xres);
- /* fix me. AOI should not be greater than display size */
- ad->aoi_size = cpu_to_le32(( var->yres << 16) | var->xres);
- ad->offset_xyi = 0;
- ad->offset_xyd = 0;
-
- /* Disable chroma keying function */
- ad->ckmax_r = 0;
- ad->ckmax_g = 0;
- ad->ckmax_b = 0;
-
- ad->ckmin_r = 255;
- ad->ckmin_g = 255;
- ad->ckmin_b = 255;
-
- gamma_table_base = gamma.paddr;
- debug("gamma_table_base is allocated @ 0x%x\n",
- (unsigned int)gamma_table_base);
-
- /* Prep for DIU init - gamma table */
-
- for (i = 0; i <= 2; i++)
- for (j = 0; j <= 255; j++)
- *gamma_table_base++ = j;
-
- if (gamma_fix == 1) { /* fix the gamma */
- debug("Fix gamma table\n");
- gamma_table_base = gamma.paddr;
- for (i = 0; i < 256*3; i++) {
- gamma_table_base[i] = (gamma_table_base[i] << 2)
- | ((gamma_table_base[i] >> 6) & 0x03);
- }
- }
-
- debug("update-lcdc: HW - %p\n Disabling DIU\n", hw);
-
- /* Program DIU registers */
-
- out_be32(&hw->gamma, (int)gamma.paddr);
- out_be32(&hw->cursor, (int)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 */
-
- out_be32(&hw->vsyn_para, var->upper_margin << 22 | /* BP_V */
- var->vsync_len << 11 | /* PW_V */
- 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);
-
- fb_initialized = 1;
-
- /* Enable the DIU */
- fsl_diu_enable_panel(info);
- enable_lcdc();
-
- return 0;
-}
-
-char *fsl_fb_open(struct fb_info **info)
-{
- *info = &fsl_fb_info;
- return fsl_fb_info.screen_base;
-}
-
-void fsl_diu_close(void)
-{
- struct fb_info *info = &fsl_fb_info;
- fsl_diu_disable_panel(info);
-}
-
-static int fsl_diu_enable_panel(struct fb_info *info)
-{
- struct diu *hw = dr.diu_reg;
- struct diu_ad *ad = &fsl_diu_fb_ad;
-
- debug("Entered: enable_panel\n");
- if (in_be32(&hw->desc[0]) != (unsigned)ad)
- out_be32(&hw->desc[0], (unsigned)ad);
- debug("desc[0] = 0x%x\n", hw->desc[0]);
- return 0;
-}
-
-static int fsl_diu_disable_panel(struct fb_info *info)
-{
- struct diu *hw = dr.diu_reg;
-
- debug("Entered: disable_panel\n");
- if (in_be32(&hw->desc[0]) != (unsigned)&dummy_ad)
- out_be32(&hw->desc[0], (unsigned)&dummy_ad);
- return 0;
-}
-
-static int map_video_memory(struct fb_info *info, unsigned long bytes_align)
-{
- unsigned long offset;
- unsigned long mask;
-
- debug("Entered: map_video_memory\n");
- /* allocate maximum 1280*1024 with 32bpp */
- info->smem_len = 1280 * 4 *1024 + bytes_align;
- debug("MAP_VIDEO_MEMORY: smem_len = %d\n", info->smem_len);
- info->screen_base = malloc(info->smem_len);
- if (info->screen_base == NULL) {
- printf("Unable to allocate fb memory\n");
- return -1;
- }
- info->smem_start = (unsigned int) info->screen_base;
- mask = bytes_align - 1;
- offset = (unsigned long)info->screen_base & mask;
- if (offset) {
- info->screen_base += (bytes_align - offset);
- info->smem_len = info->smem_len - (bytes_align - offset);
- } else
- info->smem_len = info->smem_len - bytes_align;
-
- info->screen_size = info->smem_len;
-
- debug("Allocated fb @ 0x%08lx, size=%d.\n",
- info->smem_start, info->smem_len);
-
- return 0;
-}
-
-static void enable_lcdc(void)
-{
- struct diu *hw = dr.diu_reg;
-
- debug("Entered: enable_lcdc, fb_enabled = %d\n", fb_enabled);
- if (!fb_enabled) {
- out_be32(&hw->diu_mode, dr.mode);
- fb_enabled++;
- }
- debug("diu_mode = %d\n", hw->diu_mode);
-}
-
-static void disable_lcdc(void)
-{
- struct diu *hw = dr.diu_reg;
-
- debug("Entered: disable_lcdc, fb_enabled = %d\n", fb_enabled);
- if (fb_enabled) {
- out_be32(&hw->diu_mode, 0);
- fb_enabled = 0;
- }
-}
-
-/*
- * Align to 64-bit(8-byte), 32-byte, etc.
- */
-static int allocate_buf(struct diu_addr *buf, u32 size, u32 bytes_align)
-{
- u32 offset, ssize;
- u32 mask;
-
- debug("Entered: allocate_buf\n");
- ssize = size + bytes_align;
- buf->paddr = malloc(ssize);
- if (!buf->paddr)
- return -1;
-
- memset(buf->paddr, 0, ssize);
- mask = bytes_align - 1;
- offset = (u32)buf->paddr & mask;
- if (offset) {
- buf->offset = bytes_align - offset;
- buf->paddr = (unsigned char *) ((u32)buf->paddr + offset);
- } else
- buf->offset = 0;
- return 0;
-}
-
-#if defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE)
-#include <stdio_dev.h>
-#include <video_fb.h>
-/*
- * The Graphic Device
- */
-static GraphicDevice ctfb;
-
-void *video_hw_init(void)
-{
- struct fb_info *info;
-
- if (platform_diu_init(&ctfb.winSizeX, &ctfb.winSizeY) < 0)
- return NULL;
-
- /* fill in Graphic device struct */
- sprintf(ctfb.modeIdent, "%ix%ix%i %ikHz %iHz",
- ctfb.winSizeX, ctfb.winSizeY, 32, 64, 60);
-
- ctfb.frameAdrs = (unsigned int)fsl_fb_open(&info);
- ctfb.plnSizeX = ctfb.winSizeX;
- ctfb.plnSizeY = ctfb.winSizeY;
-
- ctfb.gdfBytesPP = 4;
- ctfb.gdfIndex = GDF_32BIT_X888RGB;
-
- ctfb.isaBase = 0;
- ctfb.pciBase = 0;
- ctfb.memSize = info->screen_size;
-
- /* Cursor Start Address */
- ctfb.dprBase = 0;
- ctfb.vprBase = 0;
- ctfb.cprBase = 0;
-
- return &ctfb;
-}
-#endif /* defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE) */
diff --git a/board/freescale/mpc8641hpcn/mpc8641hpcn.c b/board/freescale/mpc8641hpcn/mpc8641hpcn.c
index 812111d..882ff0b 100644
--- a/board/freescale/mpc8641hpcn/mpc8641hpcn.c
+++ b/board/freescale/mpc8641hpcn/mpc8641hpcn.c
@@ -60,9 +60,6 @@ int checkboard(void)
return 0;
}
-const char *board_hwconfig = "foo:bar=baz";
-const char *cpu_hwconfig = "foo:bar=baz";
-
phys_size_t
initdram(int board_type)
{
diff --git a/board/freescale/p1022ds/diu.c b/board/freescale/p1022ds/diu.c
index 12b40a0..8f5305c 100644
--- a/board/freescale/p1022ds/diu.c
+++ b/board/freescale/p1022ds/diu.c
@@ -32,6 +32,7 @@
#define PMUXCR_ELBCDIU_MASK 0xc0000000
#define PMUXCR_ELBCDIU_NOR16 0x80000000
+#define PMUXCR_ELBCDIU_DIU 0x40000000
/*
* DIU Area Descriptor
@@ -131,9 +132,8 @@ int platform_diu_init(unsigned int *xres, unsigned int *yres)
px_brdcfg0 = in_8(lbc_lcs1_ba);
out_8(lbc_lcs1_ba, px_brdcfg0 | PX_BRDCFG0_ELBC_DIU);
- /* Setting PMUXCR to switch to DVI from ELBC */
- clrsetbits_be32(&gur->pmuxcr,
- PMUXCR_ELBCDIU_MASK, PMUXCR_ELBCDIU_NOR16);
+ /* Set PMUXCR to switch the muxed pins from the LBC to the DIU */
+ clrsetbits_be32(&gur->pmuxcr, PMUXCR_ELBCDIU_MASK, PMUXCR_ELBCDIU_DIU);
pmuxcr = in_be32(&gur->pmuxcr);
return fsl_diu_init(*xres, pixel_format, 0);
@@ -161,7 +161,7 @@ static int set_mux_to_lbc(void)
ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR;
/* Switch the muxes only if they're currently set to DIU mode */
- if ((in_be32(&gur->pmuxcr) & PMUXCR_ELBCDIU_MASK) ==
+ if ((in_be32(&gur->pmuxcr) & PMUXCR_ELBCDIU_MASK) !=
PMUXCR_ELBCDIU_NOR16) {
/*
* In DIU mode, the PIXIS can only be accessed indirectly
@@ -216,8 +216,17 @@ void flash_write8(u8 value, void *addr)
int sw = set_mux_to_lbc();
__raw_writeb(value, addr);
- if (sw)
+ if (sw) {
+ /*
+ * To ensure the post-write is completed to eLBC, software must
+ * perform a dummy read from one valid address from eLBC space
+ * before changing the eLBC_DIU from NOR mode to DIU mode.
+ * set_mux_to_diu() includes a sync that will ensure the
+ * __raw_readb() completes before it switches the mux.
+ */
+ __raw_readb(addr);
set_mux_to_diu();
+ }
}
void flash_write16(u16 value, void *addr)
@@ -225,8 +234,17 @@ void flash_write16(u16 value, void *addr)
int sw = set_mux_to_lbc();
__raw_writew(value, addr);
- if (sw)
+ if (sw) {
+ /*
+ * To ensure the post-write is completed to eLBC, software must
+ * perform a dummy read from one valid address from eLBC space
+ * before changing the eLBC_DIU from NOR mode to DIU mode.
+ * set_mux_to_diu() includes a sync that will ensure the
+ * __raw_readb() completes before it switches the mux.
+ */
+ __raw_readb(addr);
set_mux_to_diu();
+ }
}
void flash_write32(u32 value, void *addr)
@@ -234,18 +252,47 @@ void flash_write32(u32 value, void *addr)
int sw = set_mux_to_lbc();
__raw_writel(value, addr);
- if (sw)
+ if (sw) {
+ /*
+ * To ensure the post-write is completed to eLBC, software must
+ * perform a dummy read from one valid address from eLBC space
+ * before changing the eLBC_DIU from NOR mode to DIU mode.
+ * set_mux_to_diu() includes a sync that will ensure the
+ * __raw_readb() completes before it switches the mux.
+ */
+ __raw_readb(addr);
set_mux_to_diu();
+ }
}
void flash_write64(u64 value, void *addr)
{
int sw = set_mux_to_lbc();
+ uint32_t *p = addr;
- /* There is no __raw_writeq(), so do the write manually */
- *(volatile u64 *)addr = value;
- if (sw)
+ /*
+ * There is no __raw_writeq(), so do the write manually. We don't trust
+ * the compiler, so we use inline assembly.
+ */
+ __asm__ __volatile__(
+ "stw%U0%X0 %2,%0;\n"
+ "stw%U1%X1 %3,%1;\n"
+ : "=m" (*p), "=m" (*(p + 1))
+ : "r" ((uint32_t) (value >> 32)), "r" ((uint32_t) (value)));
+
+ if (sw) {
+ /*
+ * To ensure the post-write is completed to eLBC, software must
+ * perform a dummy read from one valid address from eLBC space
+ * before changing the eLBC_DIU from NOR mode to DIU mode. We
+ * read addr+4 because we just wrote to addr+4, so that's how we
+ * maintain execution order. set_mux_to_diu() includes a sync
+ * that will ensure the __raw_readb() completes before it
+ * switches the mux.
+ */
+ __raw_readb(addr + 4);
set_mux_to_diu();
+ }
}
u8 flash_read8(void *addr)
diff --git a/board/freescale/p2020ds/p2020ds.c b/board/freescale/p2020ds/p2020ds.c
index b507677..b05ef98 100644
--- a/board/freescale/p2020ds/p2020ds.c
+++ b/board/freescale/p2020ds/p2020ds.c
@@ -69,9 +69,6 @@ int checkboard(void)
return 0;
}
-const char *board_hwconfig = "foo:bar=baz";
-const char *cpu_hwconfig = "foo:bar=baz";
-
phys_size_t initdram(int board_type)
{
phys_size_t dram_size = 0;
generated by cgit v1.1 at 2024-12-19 12:05:26 +0000