diff options
Diffstat (limited to 'board/bf548-ezkit')
| -rw-r--r-- | board/bf548-ezkit/.gitignore | 1 | ||||
| -rw-r--r-- | board/bf548-ezkit/Makefile | 58 | ||||
| -rw-r--r-- | board/bf548-ezkit/bf548-ezkit.c | 79 | ||||
| -rw-r--r-- | board/bf548-ezkit/config.mk | 37 | ||||
| -rw-r--r-- | board/bf548-ezkit/u-boot.lds.S | 124 | ||||
| -rw-r--r-- | board/bf548-ezkit/video.c | 327 |
6 files changed, 626 insertions, 0 deletions
diff --git a/board/bf548-ezkit/.gitignore b/board/bf548-ezkit/.gitignore new file mode 100644 index 0000000..945f324 --- /dev/null +++ b/board/bf548-ezkit/.gitignore @@ -0,0 +1 @@ +/u-boot.lds diff --git a/board/bf548-ezkit/Makefile b/board/bf548-ezkit/Makefile new file mode 100644 index 0000000..c2b98ec --- /dev/null +++ b/board/bf548-ezkit/Makefile @@ -0,0 +1,58 @@ +# +# U-boot - Makefile +# +# Copyright (c) 2005-2008 Analog Device Inc. +# +# (C) Copyright 2000-2006 +# Wolfgang Denk, DENX Software Engineering, wd@denx.de. +# +# 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 $(TOPDIR)/config.mk + +LIB = $(obj)lib$(BOARD).a + +COBJS-y := $(BOARD).o +COBJS-$(CONFIG_VIDEO) += video.o + +SRCS := $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c) +OBJS := $(addprefix $(obj),$(COBJS-y)) +SOBJS := $(addprefix $(obj),$(SOBJS-y)) + +$(LIB): $(obj).depend $(OBJS) $(SOBJS) $(obj)u-boot.lds + $(AR) $(ARFLAGS) $@ $(OBJS) $(SOBJS) + +$(obj)u-boot.lds: u-boot.lds.S + $(CPP) $(CPPFLAGS) -D__ASSEMBLY__ -P $^ > $@ + +clean: + rm -f $(SOBJS) $(OBJS) + +distclean: clean + rm -f $(LIB) core *.bak $(obj).depend + +######################################################################### + +# defines $(obj).depend target +include $(SRCTREE)/rules.mk + +sinclude $(obj).depend + +######################################################################### diff --git a/board/bf548-ezkit/bf548-ezkit.c b/board/bf548-ezkit/bf548-ezkit.c new file mode 100644 index 0000000..74f93ba --- /dev/null +++ b/board/bf548-ezkit/bf548-ezkit.c @@ -0,0 +1,79 @@ +/* + * U-boot - main board file + * + * Copyright (c) 2005-2008 Analog Devices Inc. + * + * Licensed under the GPL-2 or later. + */ + +#include <common.h> +#include <config.h> +#include <command.h> +#include <asm/blackfin.h> + +DECLARE_GLOBAL_DATA_PTR; + +int checkboard(void) +{ + printf("Board: ADI BF548 EZ-Kit board\n"); + printf(" Support: http://blackfin.uclinux.org/\n"); + return 0; +} + +phys_size_t initdram(int board_type) +{ + gd->bd->bi_memstart = CONFIG_SYS_SDRAM_BASE; + gd->bd->bi_memsize = CONFIG_SYS_MAX_RAM_SIZE; + return gd->bd->bi_memsize; +} + +int board_early_init_f(void) +{ + /* Port H: PH8 - PH13 == A4 - A9 + * address lines of the parallel asynchronous memory interface + */ + + /************************************************ + * configure GPIO * + * set port H function enable register * + * configure PH8-PH13 as peripheral (not GPIO) * + *************************************************/ + bfin_write_PORTH_FER(0x3F03); + + /************************************************ + * set port H MUX to configure PH8-PH13 * + * 1st Function (MUX = 00) (bits 16-27 == 0) * + * Set to address signals A4-A9 * + *************************************************/ + bfin_write_PORTH_MUX(0); + + /************************************************ + * set port H direction register * + * enable PH8-PH13 as outputs * + *************************************************/ + bfin_write_PORTH_DIR_SET(0x3F00); + + /* Port I: PI0 - PH14 == A10 - A24 + * address lines of the parallel asynchronous memory interface + */ + + /************************************************ + * set port I function enable register * + * configure PI0-PI14 as peripheral (not GPIO) * + *************************************************/ + bfin_write_PORTI_FER(0x7fff); + + /************************************************** + * set PORT I MUX to configure PI14-PI0 as * + * 1st Function (MUX=00) - address signals A10-A24 * + ***************************************************/ + bfin_write_PORTI_MUX(0); + + /**************************************** + * set PORT I direction register * + * enable PI0 - PI14 as outputs * + *****************************************/ + bfin_write_PORTI_DIR_SET(0x7fff); + + return 0; +} diff --git a/board/bf548-ezkit/config.mk b/board/bf548-ezkit/config.mk new file mode 100644 index 0000000..8b471f6 --- /dev/null +++ b/board/bf548-ezkit/config.mk @@ -0,0 +1,37 @@ +# +# Copyright (c) 2005-2008 Analog Device Inc. +# +# (C) Copyright 2001 +# Wolfgang Denk, DENX Software Engineering, wd@denx.de. +# +# 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 +# + +# This is not actually used for Blackfin boards so do not change it +#TEXT_BASE = do-not-use-me + +LDSCRIPT = $(obj)board/$(BOARDDIR)/u-boot.lds + +# Set some default LDR flags based on boot mode. +LDR_FLAGS-BFIN_BOOT_PARA := --dma 6 +LDR_FLAGS-BFIN_BOOT_FIFO := --dma 1 +LDR_FLAGS-BFIN_BOOT_SPI_MASTER := --dma 1 +LDR_FLAGS-BFIN_BOOT_UART := --dma 1 +LDR_FLAGS-BFIN_BOOT_NAND := --dma 6 +LDR_FLAGS += $(LDR_FLAGS-$(CONFIG_BFIN_BOOT_MODE)) diff --git a/board/bf548-ezkit/u-boot.lds.S b/board/bf548-ezkit/u-boot.lds.S new file mode 100644 index 0000000..3e8be35 --- /dev/null +++ b/board/bf548-ezkit/u-boot.lds.S @@ -0,0 +1,124 @@ +/* + * U-boot - u-boot.lds.S + * + * Copyright (c) 2005-2008 Analog Device Inc. + * + * (C) Copyright 2000-2004 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * 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 <config.h> +#include <asm/blackfin.h> +#undef ALIGN +#undef ENTRY +#undef bfin + +/* If we don't actually load anything into L1 data, this will avoid + * a syntax error. If we do actually load something into L1 data, + * we'll get a linker memory load error (which is what we'd want). + * This is here in the first place so we can quickly test building + * for different CPU's which may lack non-cache L1 data. + */ +#ifndef L1_DATA_B_SRAM +# define L1_DATA_B_SRAM CONFIG_SYS_MONITOR_BASE +# define L1_DATA_B_SRAM_SIZE 0 +#endif + +OUTPUT_ARCH(bfin) + +MEMORY +{ + ram : ORIGIN = CONFIG_SYS_MONITOR_BASE, LENGTH = CONFIG_SYS_MONITOR_LEN + l1_code : ORIGIN = L1_INST_SRAM, LENGTH = L1_INST_SRAM_SIZE + l1_data : ORIGIN = L1_DATA_B_SRAM, LENGTH = L1_DATA_B_SRAM_SIZE +} + +ENTRY(_start) +SECTIONS +{ + .text : + { + cpu/blackfin/start.o (.text .text.*) + __initcode_start = .; + cpu/blackfin/initcode.o (.text .text.*) + __initcode_end = .; + *(.text .text.*) + } >ram + + .rodata : + { + . = ALIGN(4); + *(.rodata .rodata.*) + *(.rodata1) + *(.eh_frame) + . = ALIGN(4); + } >ram + + .data : + { + . = ALIGN(256); + *(.data .data.*) + *(.data1) + *(.sdata) + *(.sdata2) + *(.dynamic) + CONSTRUCTORS + } >ram + + .u_boot_cmd : + { + ___u_boot_cmd_start = .; + *(.u_boot_cmd) + ___u_boot_cmd_end = .; + } >ram + + .text_l1 : + { + . = ALIGN(4); + __stext_l1 = .; + *(.l1.text) + . = ALIGN(4); + __etext_l1 = .; + } >l1_code AT>ram + __stext_l1_lma = LOADADDR(.text_l1); + + .data_l1 : + { + . = ALIGN(4); + __sdata_l1 = .; + *(.l1.data) + *(.l1.bss) + . = ALIGN(4); + __edata_l1 = .; + } >l1_data AT>ram + __sdata_l1_lma = LOADADDR(.data_l1); + + .bss : + { + . = ALIGN(4); + __bss_start = .; + *(.sbss) *(.scommon) + *(.dynbss) + *(.bss .bss.*) + *(COMMON) + __bss_end = .; + } >ram +} diff --git a/board/bf548-ezkit/video.c b/board/bf548-ezkit/video.c new file mode 100644 index 0000000..a6f52bd --- /dev/null +++ b/board/bf548-ezkit/video.c @@ -0,0 +1,327 @@ +/* + * video.c - run splash screen on lcd + * + * Copyright (c) 2007-2008 Analog Devices Inc. + * + * Licensed under the GPL-2 or later. + */ + +#include <stdarg.h> +#include <common.h> +#include <config.h> +#include <malloc.h> +#include <asm/blackfin.h> +#include <asm/mach-common/bits/dma.h> +#include <i2c.h> +#include <linux/types.h> +#include <devices.h> + +int gunzip(void *, int, unsigned char *, unsigned long *); + +#define DMA_SIZE16 2 + +#include <asm/mach-common/bits/eppi.h> + +#include <asm/bfin_logo_230x230.h> + +#define LCD_X_RES 480 /*Horizontal Resolution */ +#define LCD_Y_RES 272 /* Vertical Resolution */ + +#define LCD_BPP 24 /* Bit Per Pixel */ +#define LCD_PIXEL_SIZE (LCD_BPP / 8) +#define DMA_BUS_SIZE 32 +#define ACTIVE_VIDEO_MEM_OFFSET 0 + +/* -- Horizontal synchronizing -- + * + * Timing characteristics taken from the SHARP LQ043T1DG01 datasheet + * (LCY-W-06602A Page 9 of 22) + * + * Clock Frequency 1/Tc Min 7.83 Typ 9.00 Max 9.26 MHz + * + * Period TH - 525 - Clock + * Pulse width THp - 41 - Clock + * Horizontal period THd - 480 - Clock + * Back porch THb - 2 - Clock + * Front porch THf - 2 - Clock + * + * -- Vertical synchronizing -- + * Period TV - 286 - Line + * Pulse width TVp - 10 - Line + * Vertical period TVd - 272 - Line + * Back porch TVb - 2 - Line + * Front porch TVf - 2 - Line + */ + +#define LCD_CLK (8*1000*1000) /* 8MHz */ + +/* # active data to transfer after Horizontal Delay clock */ +#define EPPI_HCOUNT LCD_X_RES + +/* # active lines to transfer after Vertical Delay clock */ +#define EPPI_VCOUNT LCD_Y_RES + +/* Samples per Line = 480 (active data) + 45 (padding) */ +#define EPPI_LINE 525 + +/* Lines per Frame = 272 (active data) + 14 (padding) */ +#define EPPI_FRAME 286 + +/* FS1 (Hsync) Width (Typical)*/ +#define EPPI_FS1W_HBL 41 + +/* FS1 (Hsync) Period (Typical) */ +#define EPPI_FS1P_AVPL EPPI_LINE + +/* Horizontal Delay clock after assertion of Hsync (Typical) */ +#define EPPI_HDELAY 43 + +/* FS2 (Vsync) Width = FS1 (Hsync) Period * 10 */ +#define EPPI_FS2W_LVB (EPPI_LINE * 10) + + /* FS2 (Vsync) Period = FS1 (Hsync) Period * Lines per Frame */ +#define EPPI_FS2P_LAVF (EPPI_LINE * EPPI_FRAME) + +/* Vertical Delay after assertion of Vsync (2 Lines) */ +#define EPPI_VDELAY 12 + +#define EPPI_CLIP 0xFF00FF00 + +/* EPPI Control register configuration value for RGB out + * - EPPI as Output + * GP 2 frame sync mode, + * Internal Clock generation disabled, Internal FS generation enabled, + * Receives samples on EPPI_CLK raising edge, Transmits samples on EPPI_CLK falling edge, + * FS1 & FS2 are active high, + * DLEN = 6 (24 bits for RGB888 out) or 5 (18 bits for RGB666 out) + * DMA Unpacking disabled when RGB Formating is enabled, otherwise DMA unpacking enabled + * Swapping Enabled, + * One (DMA) Channel Mode, + * RGB Formatting Enabled for RGB666 output, disabled for RGB888 output + * Regular watermark - when FIFO is 100% full, + * Urgent watermark - when FIFO is 75% full + */ + +#define EPPI_CONTROL (0x20136E2E) + +static inline u16 get_eppi_clkdiv(u32 target_ppi_clk) +{ + u32 sclk = get_sclk(); + + /* EPPI_CLK = (SCLK) / (2 * (EPPI_CLKDIV[15:0] + 1)) */ + + return (((sclk / target_ppi_clk) / 2) - 1); +} + +void Init_PPI(void) +{ + u16 eppi_clkdiv = get_eppi_clkdiv(LCD_CLK); + + bfin_write_EPPI0_FS1W_HBL(EPPI_FS1W_HBL); + bfin_write_EPPI0_FS1P_AVPL(EPPI_FS1P_AVPL); + bfin_write_EPPI0_FS2W_LVB(EPPI_FS2W_LVB); + bfin_write_EPPI0_FS2P_LAVF(EPPI_FS2P_LAVF); + bfin_write_EPPI0_CLIP(EPPI_CLIP); + + bfin_write_EPPI0_FRAME(EPPI_FRAME); + bfin_write_EPPI0_LINE(EPPI_LINE); + + bfin_write_EPPI0_HCOUNT(EPPI_HCOUNT); + bfin_write_EPPI0_HDELAY(EPPI_HDELAY); + bfin_write_EPPI0_VCOUNT(EPPI_VCOUNT); + bfin_write_EPPI0_VDELAY(EPPI_VDELAY); + + bfin_write_EPPI0_CLKDIV(eppi_clkdiv); + +/* + * DLEN = 6 (24 bits for RGB888 out) or 5 (18 bits for RGB666 out) + * RGB Formatting Enabled for RGB666 output, disabled for RGB888 output + */ +#if defined(CONFIG_VIDEO_RGB666) + bfin_write_EPPI0_CONTROL((EPPI_CONTROL & ~DLENGTH) | DLEN_18 | + RGB_FMT_EN); +#else + bfin_write_EPPI0_CONTROL(((EPPI_CONTROL & ~DLENGTH) | DLEN_24) & + ~RGB_FMT_EN); +#endif + +} + +#define DEB2_URGENT 0x2000 /* DEB2 Urgent */ + +void Init_DMA(void *dst) +{ + +#if defined(CONFIG_DEB_DMA_URGENT) + *pEBIU_DDRQUE |= DEB2_URGENT; +#endif + + *pDMA12_START_ADDR = dst; + + /* X count */ + *pDMA12_X_COUNT = (LCD_X_RES * LCD_BPP) / DMA_BUS_SIZE; + *pDMA12_X_MODIFY = DMA_BUS_SIZE / 8; + + /* Y count */ + *pDMA12_Y_COUNT = LCD_Y_RES; + *pDMA12_Y_MODIFY = DMA_BUS_SIZE / 8; + + /* DMA Config */ + *pDMA12_CONFIG = + WDSIZE_32 | /* 32 bit DMA */ + DMA2D | /* 2D DMA */ + FLOW_AUTO; /* autobuffer mode */ +} + +void Init_Ports(void) +{ + *pPORTF_MUX = 0x00000000; + *pPORTF_FER |= 0xFFFF; /* PPI0..15 */ + + *pPORTG_MUX &= ~(PORT_x_MUX_0_MASK | PORT_x_MUX_1_MASK | PORT_x_MUX_2_MASK | PORT_x_MUX_3_MASK | PORT_x_MUX_4_MASK); + *pPORTG_FER |= PG0 | PG1 | PG2 | PG3 | PG4; /* CLK, FS1, FS2, PPI16..17 */ + +#if !defined(CONFIG_VIDEO_RGB666) + *pPORTD_MUX &= ~(PORT_x_MUX_0_MASK | PORT_x_MUX_1_MASK | PORT_x_MUX_2_MASK | PORT_x_MUX_3_MASK | PORT_x_MUX_4_MASK | PORT_x_MUX_5_MASK); + *pPORTD_MUX |= (PORT_x_MUX_0_FUNC_4 | PORT_x_MUX_1_FUNC_4 | PORT_x_MUX_2_FUNC_4 | PORT_x_MUX_3_FUNC_4 | PORT_x_MUX_4_FUNC_4 | PORT_x_MUX_5_FUNC_4); + *pPORTD_FER |= PD0 | PD1 | PD2 | PD3 | PD4 | PD5; /* PPI18..23 */ +#endif + + *pPORTE_FER &= ~PE3; /* DISP */ + *pPORTE_DIR_SET = PE3; + *pPORTE_SET = PE3; + +} + +void EnableDMA(void) +{ + *pDMA12_CONFIG |= DMAEN; +} + +void DisableDMA(void) +{ + *pDMA12_CONFIG &= ~DMAEN; +} + +/* enable and disable PPI functions */ +void EnablePPI(void) +{ + bfin_write_EPPI0_CONTROL(bfin_read_EPPI0_CONTROL() | EPPI_EN); +} + +void DisablePPI(void) +{ + bfin_write_EPPI0_CONTROL(bfin_read_EPPI0_CONTROL() & ~EPPI_EN); +} + +int video_init(void *dst) +{ + Init_Ports(); + Init_DMA(dst); + EnableDMA(); + Init_PPI(); + EnablePPI(); + + return 0; +} + +static void dma_bitblit(void *dst, fastimage_t *logo, int x, int y) +{ + if (dcache_status()) + blackfin_dcache_flush_range(logo->data, logo->data + logo->size); + + bfin_write_MDMA_D0_IRQ_STATUS(DMA_DONE | DMA_ERR); + + /* Setup destination start address */ + bfin_write_MDMA_D0_START_ADDR(dst + ((x & -2) * LCD_PIXEL_SIZE) + + (y * LCD_X_RES * LCD_PIXEL_SIZE)); + /* Setup destination xcount */ + bfin_write_MDMA_D0_X_COUNT(logo->width * LCD_PIXEL_SIZE / DMA_SIZE16); + /* Setup destination xmodify */ + bfin_write_MDMA_D0_X_MODIFY(DMA_SIZE16); + + /* Setup destination ycount */ + bfin_write_MDMA_D0_Y_COUNT(logo->height); + /* Setup destination ymodify */ + bfin_write_MDMA_D0_Y_MODIFY((LCD_X_RES - logo->width) * LCD_PIXEL_SIZE + DMA_SIZE16); + + + /* Setup Source start address */ + bfin_write_MDMA_S0_START_ADDR(logo->data); + /* Setup Source xcount */ + bfin_write_MDMA_S0_X_COUNT(logo->width * LCD_PIXEL_SIZE / DMA_SIZE16); + /* Setup Source xmodify */ + bfin_write_MDMA_S0_X_MODIFY(DMA_SIZE16); + + /* Setup Source ycount */ + bfin_write_MDMA_S0_Y_COUNT(logo->height); + /* Setup Source ymodify */ + bfin_write_MDMA_S0_Y_MODIFY(DMA_SIZE16); + + + /* Enable source DMA */ + bfin_write_MDMA_S0_CONFIG(DMAEN | WDSIZE_16 | DMA2D); + SSYNC(); + bfin_write_MDMA_D0_CONFIG(WNR | DMAEN | WDSIZE_16 | DMA2D); + + while (bfin_read_MDMA_D0_IRQ_STATUS() & DMA_RUN); + + bfin_write_MDMA_S0_IRQ_STATUS(bfin_read_MDMA_S0_IRQ_STATUS() | DMA_DONE | DMA_ERR); + bfin_write_MDMA_D0_IRQ_STATUS(bfin_read_MDMA_D0_IRQ_STATUS() | DMA_DONE | DMA_ERR); + +} + +void video_putc(const char c) +{ +} + +void video_puts(const char *s) +{ +} + +int drv_video_init(void) +{ + int error, devices = 1; + device_t videodev; + + u8 *dst; + u32 fbmem_size = LCD_X_RES * LCD_Y_RES * LCD_PIXEL_SIZE + ACTIVE_VIDEO_MEM_OFFSET; + + dst = malloc(fbmem_size); + + if (dst == NULL) { + printf("Failed to alloc FB memory\n"); + return -1; + } + +#ifdef EASYLOGO_ENABLE_GZIP + unsigned char *data = EASYLOGO_DECOMP_BUFFER; + unsigned long src_len = EASYLOGO_ENABLE_GZIP; + if (gunzip(data, bfin_logo.size, bfin_logo.data, &src_len)) { + puts("Failed to decompress logo\n"); + free(dst); + return -1; + } + bfin_logo.data = data; +#endif + + memset(dst + ACTIVE_VIDEO_MEM_OFFSET, bfin_logo.data[0], fbmem_size - ACTIVE_VIDEO_MEM_OFFSET); + + dma_bitblit(dst + ACTIVE_VIDEO_MEM_OFFSET, &bfin_logo, + (LCD_X_RES - bfin_logo.width) / 2, + (LCD_Y_RES - bfin_logo.height) / 2); + + video_init(dst); /* Video initialization */ + + memset(&videodev, 0, sizeof(videodev)); + + strcpy(videodev.name, "video"); + videodev.ext = DEV_EXT_VIDEO; /* Video extensions */ + videodev.flags = DEV_FLAGS_SYSTEM; /* No Output */ + videodev.putc = video_putc; /* 'putc' function */ + videodev.puts = video_puts; /* 'puts' function */ + + error = device_register(&videodev); + + return (error == 0) ? devices : error; +} |