From: Wolfgang Grandegger wg@denx.de
To avoid board-specific code accessing the mb862xx registers directly, the public function mb862xx_probe() has been introduced. Furthermore, the "Change of Clock Frequency" and "Set Memory I/F Mode" registers are now defined by CONFIG_SYS_MB862xx_CCF and CONFIG_SYS_MB862xx__MMR, respectively. The BSPs for the socrates and lwmon5 boards have been adapted accordingly.
Signed-off-by: Wolfgang Grandegger wg@denx.de --- board/lwmon5/lwmon5.c | 7 ------ board/socrates/socrates.c | 46 ++++++------------------------------------- drivers/video/mb862xx.c | 34 +++++++++++++++++++++++++++++++- include/configs/lwmon5.h | 10 +++----- include/configs/socrates.h | 5 ++++ include/mb862xx.h | 5 ++++ 6 files changed, 54 insertions(+), 53 deletions(-)
diff --git a/board/lwmon5/lwmon5.c b/board/lwmon5/lwmon5.c index ef7f2e8..d36ea04 100644 --- a/board/lwmon5/lwmon5.c +++ b/board/lwmon5/lwmon5.c @@ -532,13 +532,6 @@ unsigned int board_video_init (void) udelay(500); gpio_write_bit(CONFIG_SYS_GPIO_LIME_RST, 1);
- /* Lime memory clock adjusted to 100MHz */ - out_be32((void *)CONFIG_SYS_LIME_SDRAM_CLOCK, CONFIG_SYS_LIME_CLOCK_100MHZ); - /* Wait untill time expired. Because of requirements in lime manual */ - udelay(300); - /* Write lime controller memory parameters */ - out_be32((void *)CONFIG_SYS_LIME_MMR, CONFIG_SYS_LIME_MMR_VALUE); - mb862xx.winSizeX = 640; mb862xx.winSizeY = 480; mb862xx.gdfBytesPP = 2; diff --git a/board/socrates/socrates.c b/board/socrates/socrates.c index 51d66d5..9183c15 100644 --- a/board/socrates/socrates.c +++ b/board/socrates/socrates.c @@ -268,17 +268,6 @@ ft_board_setup(void *blob, bd_t *bd) } #endif /* defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) */
-#define CONFIG_SYS_LIME_SRST ((CONFIG_SYS_LIME_BASE) + 0x01FC002C) -#define CONFIG_SYS_LIME_CCF ((CONFIG_SYS_LIME_BASE) + 0x01FC0038) -#define CONFIG_SYS_LIME_MMR ((CONFIG_SYS_LIME_BASE) + 0x01FCFFFC) -/* Lime clock frequency */ -#define CONFIG_SYS_LIME_CLK_100MHZ 0x00000 -#define CONFIG_SYS_LIME_CLK_133MHZ 0x10000 -/* SDRAM parameter */ -#define CONFIG_SYS_LIME_MMR_VALUE 0x4157BA63 - -#define DISPLAY_WIDTH 800 -#define DISPLAY_HEIGHT 480 #define DEFAULT_BRIGHTNESS 25 #define BACKLIGHT_ENABLE (1 << 31)
@@ -308,14 +297,12 @@ const gdc_regs *board_get_regs (void) return init_regs; }
-#define CONFIG_SYS_LIME_CID ((CONFIG_SYS_LIME_BASE) + 0x01FC00F0) -#define CONFIG_SYS_LIME_REV ((CONFIG_SYS_LIME_BASE) + 0x01FF8084) int lime_probe(void) { volatile ccsr_lbc_t *memctl = (void *)(CONFIG_SYS_MPC85xx_LBC_ADDR); uint cfg_br2; uint cfg_or2; - uint reg; + int type;
cfg_br2 = memctl->br2; cfg_or2 = memctl->or2; @@ -325,21 +312,15 @@ int lime_probe(void) memctl->or2 = 0xfc000410; memctl->br2 = (CONFIG_SYS_LIME_BASE) | 0x00001901;
- /* Try to access GDC ID/Revision registers */ - reg = in_be32((void *)CONFIG_SYS_LIME_CID); - reg = in_be32((void *)CONFIG_SYS_LIME_CID); - if (reg == 0x303) { - reg = in_be32((void *)CONFIG_SYS_LIME_REV); - reg = in_be32((void *)CONFIG_SYS_LIME_REV); - reg = ((reg & ~0xff) == 0x20050100) ? 1 : 0; - } else - reg = 0; + /* Get controller type */ + type = mb862xx_probe(CONFIG_SYS_LIME_BASE);
/* Restore previous CS2 configuration */ memctl->br2 = 0; memctl->or2 = cfg_or2; memctl->br2 = cfg_br2; - return reg; + + return (type == MB862XX_TYPE_LIME) ? 1 : 0; }
/* Returns Lime base address */ @@ -348,21 +329,8 @@ unsigned int board_video_init (void) if (!lime_probe()) return 0;
- /* - * Reset Lime controller - */ - out_be32((void *)CONFIG_SYS_LIME_SRST, 0x1); - udelay(200); - - /* Set Lime clock to 133MHz */ - out_be32((void *)CONFIG_SYS_LIME_CCF, CONFIG_SYS_LIME_CLK_133MHZ); - /* Delay required */ - udelay(300); - /* Set memory parameters */ - out_be32((void *)CONFIG_SYS_LIME_MMR, CONFIG_SYS_LIME_MMR_VALUE); - - mb862xx.winSizeX = DISPLAY_WIDTH; - mb862xx.winSizeY = DISPLAY_HEIGHT; + mb862xx.winSizeX = 800; + mb862xx.winSizeY = 480; mb862xx.gdfIndex = GDF_15BIT_555RGB; mb862xx.gdfBytesPP = 2;
diff --git a/drivers/video/mb862xx.c b/drivers/video/mb862xx.c index a8676cc..bb212a8 100644 --- a/drivers/video/mb862xx.c +++ b/drivers/video/mb862xx.c @@ -340,6 +340,30 @@ unsigned int card_init (void) } #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; @@ -359,8 +383,16 @@ void *video_hw_init (void) if ((dev->frameAdrs = board_video_init ()) == 0) { puts ("Controller not found!\n"); return NULL; - } else + } 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 (); diff --git a/include/configs/lwmon5.h b/include/configs/lwmon5.h index 777a4d6..67434f5 100644 --- a/include/configs/lwmon5.h +++ b/include/configs/lwmon5.h @@ -495,8 +495,6 @@ /*----------------------------------------------------------------------- * Graphics (Fujitsu Lime) *----------------------------------------------------------------------*/ -/* SDRAM Clock frequency adjustment register */ -#define CONFIG_SYS_LIME_SDRAM_CLOCK 0xC1FC0038 /* Lime Clock frequency is to set 100MHz */ #define CONFIG_SYS_LIME_CLOCK_100MHZ 0x00000 #if 0 @@ -504,15 +502,15 @@ #define CONFIG_SYS_LIME_CLOCK_133MHZ 0x10000 #endif
-/* SDRAM Parameter register */ -#define CONFIG_SYS_LIME_MMR 0xC1FCFFFC /* SDRAM parameter value; was 0x414FB7F2, caused several vertical bars and pixel flare on display when 133MHz was configured. According to SDRAM chip datasheet CAS Latency is 3 for 133MHz and -75 Speed Grade */ #ifdef CONFIG_SYS_LIME_CLOCK_133MHZ -#define CONFIG_SYS_LIME_MMR_VALUE 0x414FB7F3 +#define CONFIG_SYS_MB862xx_MMR 0x414FB7F3 +#define CONFIG_SYS_MB862xx_CCF CONFIG_SYS_LIME_CLOCK_133MHZ #else -#define CONFIG_SYS_LIME_MMR_VALUE 0x414FB7F2 +#define CONFIG_SYS_MB862xx_MMR 0x414FB7F2 +#define CONFIG_SYS_MB862xx_CCF CONFIG_SYS_LIME_CLOCK_100MHZ #endif
/*----------------------------------------------------------------------- diff --git a/include/configs/socrates.h b/include/configs/socrates.h index 35feed0..3321aa2 100644 --- a/include/configs/socrates.h +++ b/include/configs/socrates.h @@ -210,6 +210,11 @@ #define CONFIG_VIDEO_BMP_GZIP #define CONFIG_SYS_VIDEO_LOGO_MAX_SIZE (2 << 20) /* decompressed img */
+/* SDRAM Clock frequency, 100MHz (0x0000) or 133MHz (0x10000) */ +#define CONFIG_SYS_MB862xx_CCF 0x10000 +/* SDRAM parameter */ +#define CONFIG_SYS_MB862xx_MMR 0x4157BA63 + /* Serial Port */
#define CONFIG_CONS_INDEX 1 diff --git a/include/mb862xx.h b/include/mb862xx.h index 43f01e7..009da03 100644 --- a/include/mb862xx.h +++ b/include/mb862xx.h @@ -32,6 +32,8 @@ #define PCI_DEVICE_ID_CORAL_P 0x2019 #define PCI_DEVICE_ID_CORAL_PA 0x201E
+#define MB862XX_TYPE_LIME 0x1 + #define GC_HOST_BASE 0x01fc0000 #define GC_DISP_BASE 0x01fd0000 #define GC_DRAW_BASE 0x01ff0000 @@ -39,6 +41,7 @@ /* Host interface registers */ #define GC_SRST 0x0000002c #define GC_CCF 0x00000038 +#define GC_CID 0x000000f0 #define GC_MMR 0x0000fffc
/* @@ -99,6 +102,7 @@ #define GC_FC 0x00000480 #define GC_BC 0x00000484 #define GC_FIFO 0x000004a0 +#define GC_REV 0x00008084 #define GC_GEO_FIFO 0x00008400
typedef struct { @@ -106,6 +110,7 @@ typedef struct { unsigned int value; } gdc_regs;
+int mb862xx_probe(unsigned int addr); const gdc_regs *board_get_regs (void); unsigned int board_video_init (void); void board_backlight_switch(int);