diff options
author | wdenk <wdenk> | 2003-06-15 22:40:42 +0000 |
---|---|---|
committer | wdenk <wdenk> | 2003-06-15 22:40:42 +0000 |
commit | 71f9511803de65a3b98d2f592d418da1d1539f13 (patch) | |
tree | 4be38a22fc4f588a80aa8cc350ecd5617a211389 /cpu/pxa | |
parent | 487778b781257831aa9b9140dd3c7ad4176e8314 (diff) | |
download | u-boot-71f9511803de65a3b98d2f592d418da1d1539f13.zip u-boot-71f9511803de65a3b98d2f592d418da1d1539f13.tar.gz u-boot-71f9511803de65a3b98d2f592d418da1d1539f13.tar.bz2 |
* Fix CONFIG_NET_MULTI support in include/net.hLABEL_2003_06_16_0055
* Patches by Kyle Harris, 13 Mar 2003:
- Add FAT partition support
- Add command support for FAT
- Add command support for MMC
----
- Add Intel PXA support for video
- Add Intel PXA support for MMC
----
- Enable MMC and FAT for lubbock board
- Other misc changes for lubbock board
Diffstat (limited to 'cpu/pxa')
-rw-r--r-- | cpu/pxa/Makefile | 2 | ||||
-rw-r--r-- | cpu/pxa/cpu.c | 19 | ||||
-rw-r--r-- | cpu/pxa/mmc.c | 483 | ||||
-rw-r--r-- | cpu/pxa/pxafb.c | 1089 |
4 files changed, 1592 insertions, 1 deletions
diff --git a/cpu/pxa/Makefile b/cpu/pxa/Makefile index 778a664..1af53d6 100644 --- a/cpu/pxa/Makefile +++ b/cpu/pxa/Makefile @@ -26,7 +26,7 @@ include $(TOPDIR)/config.mk LIB = lib$(CPU).a START = start.o -OBJS = serial.o interrupts.o cpu.o i2c.o +OBJS = serial.o interrupts.o cpu.o i2c.o pxafb.o mmc.o all: .depend $(START) $(LIB) diff --git a/cpu/pxa/cpu.c b/cpu/pxa/cpu.c index 6a3c24d..cc9b3ff 100644 --- a/cpu/pxa/cpu.c +++ b/cpu/pxa/cpu.c @@ -32,6 +32,7 @@ #include <common.h> #include <command.h> +#include <asm/arch/pxa-regs.h> int cpu_init (void) { @@ -150,3 +151,21 @@ int dcache_status (void) { return 0; /* always off */ } + +void set_GPIO_mode(int gpio_mode) +{ + int gpio = gpio_mode & GPIO_MD_MASK_NR; + int fn = (gpio_mode & GPIO_MD_MASK_FN) >> 8; + int gafr; + + if (gpio_mode & GPIO_MD_MASK_DIR) + { + GPDR(gpio) |= GPIO_bit(gpio); + } + else + { + GPDR(gpio) &= ~GPIO_bit(gpio); + } + gafr = GAFR(gpio) & ~(0x3 << (((gpio) & 0xf)*2)); + GAFR(gpio) = gafr | (fn << (((gpio) & 0xf)*2)); +} diff --git a/cpu/pxa/mmc.c b/cpu/pxa/mmc.c new file mode 100644 index 0000000..783e90c --- /dev/null +++ b/cpu/pxa/mmc.c @@ -0,0 +1,483 @@ +/* + * (C) Copyright 2003 + * Kyle Harris, Nexus Technologies, Inc. kharris@nexus-tech.net + * + * 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 <common.h> +#include <mmc.h> +#include <asm/errno.h> +#include <asm/arch/hardware.h> + +#ifdef CONFIG_MMC + +extern int +fat_register_read(int(*block_read)(int device, ulong blknr, ulong blkcnt, uchar *buffer)); + +/* + * FIXME needs to read cid and csd info to determine block size + * and other parameters + */ +static uchar mmc_buf[MMC_BLOCK_SIZE]; +static mmc_csd_t mmc_csd; +static int mmc_ready = 0; + + +static uchar * +/****************************************************/ +mmc_cmd(ushort cmd, ushort argh, ushort argl, ushort cmdat) +/****************************************************/ +{ + static uchar resp[20]; + ulong status; + int words, i; + + debug("mmc_cmd %x %x %x %x\n", cmd, argh, argl, cmdat); + MMC_STRPCL = MMC_STRPCL_STOP_CLK; + MMC_I_MASK = ~MMC_I_MASK_CLK_IS_OFF; + while (!(MMC_I_REG & MMC_I_REG_CLK_IS_OFF)); + MMC_CMD = cmd; + MMC_ARGH = argh; + MMC_ARGL = argl; + MMC_CMDAT = cmdat; + MMC_I_MASK = ~MMC_I_MASK_END_CMD_RES; + MMC_STRPCL = MMC_STRPCL_START_CLK; + while (!(MMC_I_REG & MMC_I_REG_END_CMD_RES)); + + status = MMC_STAT; + debug("MMC status %x\n", status); + if (status & MMC_STAT_TIME_OUT_RESPONSE) + { + return 0; + } + + switch (cmdat & 0x3) + { + case MMC_CMDAT_R1: + case MMC_CMDAT_R3: + words = 3; + break; + + case MMC_CMDAT_R2: + words = 8; + break; + + default: + return 0; + } + for (i = words-1; i >= 0; i--) + { + ulong res_fifo = MMC_RES; + int offset = i << 1; + + resp[offset] = ((uchar *)&res_fifo)[0]; + resp[offset+1] = ((uchar *)&res_fifo)[1]; + } +#ifdef MMC_DEBUG + for (i=0; i<words*2; i += 2) + { + printf("MMC resp[%d] = %02x\n", i, resp[i]); + printf("MMC resp[%d] = %02x\n", i+1, resp[i+1]); + } +#endif + return resp; +} + +int +/****************************************************/ +mmc_block_read(uchar *dst, ulong src, ulong len) +/****************************************************/ +{ + uchar *resp; + ushort argh, argl; + ulong status; + + if (len == 0) + { + return 0; + } + + debug("mmc_block_rd dst %lx src %lx len %d\n", (ulong)dst, src, len); + + argh = len >> 16; + argl = len & 0xffff; + + /* set block len */ + resp = mmc_cmd(MMC_CMD_SET_BLOCKLEN, argh, argl, MMC_CMDAT_R1); + + /* send read command */ + argh = src >> 16; + argl = src & 0xffff; + MMC_STRPCL = MMC_STRPCL_STOP_CLK; + MMC_RDTO = 0xffff; + MMC_NOB = 1; + MMC_BLKLEN = len; + resp = mmc_cmd(MMC_CMD_READ_BLOCK, argh, argl, + MMC_CMDAT_R1|MMC_CMDAT_READ|MMC_CMDAT_BLOCK|MMC_CMDAT_DATA_EN); + + + MMC_I_MASK = ~MMC_I_MASK_RXFIFO_RD_REQ; + while (len) + { + if (MMC_I_REG & MMC_I_REG_RXFIFO_RD_REQ) + { + *dst++ = MMC_RXFIFO; + len--; + } + status = MMC_STAT; + if (status & MMC_STAT_ERRORS) + { + printf("MMC_STAT error %lx\n", status); + return -1; + } + } + MMC_I_MASK = ~MMC_I_MASK_DATA_TRAN_DONE; + while (!(MMC_I_REG & MMC_I_REG_DATA_TRAN_DONE)); + status = MMC_STAT; + if (status & MMC_STAT_ERRORS) + { + printf("MMC_STAT error %lx\n", status); + return -1; + } + return 0; +} + +int +/****************************************************/ +mmc_block_write(ulong dst, uchar *src, int len) +/****************************************************/ +{ + uchar *resp; + ushort argh, argl; + ulong status; + + if (len == 0) + { + return 0; + } + + debug("mmc_block_wr dst %lx src %lx len %d\n", dst, (ulong)src, len); + + argh = len >> 16; + argl = len & 0xffff; + + /* set block len */ + resp = mmc_cmd(MMC_CMD_SET_BLOCKLEN, argh, argl, MMC_CMDAT_R1); + + /* send write command */ + argh = dst >> 16; + argl = dst & 0xffff; + MMC_STRPCL = MMC_STRPCL_STOP_CLK; + MMC_NOB = 1; + MMC_BLKLEN = len; + resp = mmc_cmd(MMC_CMD_WRITE_BLOCK, argh, argl, + MMC_CMDAT_R1|MMC_CMDAT_WRITE|MMC_CMDAT_BLOCK|MMC_CMDAT_DATA_EN); + + MMC_I_MASK = ~MMC_I_MASK_TXFIFO_WR_REQ; + while (len) + { + if (MMC_I_REG & MMC_I_REG_TXFIFO_WR_REQ) + { + int i, bytes = min(32,len); + + for (i=0; i<bytes; i++) + { + MMC_TXFIFO = *src++; + } + if (bytes < 32) + { + MMC_PRTBUF = MMC_PRTBUF_BUF_PART_FULL; + } + len -= bytes; + } + status = MMC_STAT; + if (status & MMC_STAT_ERRORS) + { + printf("MMC_STAT error %lx\n", status); + return -1; + } + } + MMC_I_MASK = ~MMC_I_MASK_DATA_TRAN_DONE; + while (!(MMC_I_REG & MMC_I_REG_DATA_TRAN_DONE)); + MMC_I_MASK = ~MMC_I_MASK_PRG_DONE; + while (!(MMC_I_REG & MMC_I_REG_PRG_DONE)); + status = MMC_STAT; + if (status & MMC_STAT_ERRORS) + { + printf("MMC_STAT error %lx\n", status); + return -1; + } + return 0; +} + + +int +/****************************************************/ +mmc_read(ulong src, uchar *dst, int size) +/****************************************************/ +{ + ulong end, part_start, part_end, part_len, aligned_start, aligned_end; + ulong mmc_block_size, mmc_block_address; + + if (size == 0) + { + return 0; + } + + if (!mmc_ready) + { + printf("Please initial the MMC first\n"); + return -1; + } + + mmc_block_size = MMC_BLOCK_SIZE; + mmc_block_address = ~(mmc_block_size - 1); + + src -= CFG_MMC_BASE; + end = src + size; + part_start = ~mmc_block_address & src; + part_end = ~mmc_block_address & end; + aligned_start = mmc_block_address & src; + aligned_end = mmc_block_address & end; + + /* all block aligned accesses */ + debug("src %lx dst %lx end %lx pstart %lx pend %lx astart %lx aend %lx\n", + src, (ulong)dst, end, part_start, part_end, aligned_start, aligned_end); + if (part_start) + { + part_len = mmc_block_size - part_start; + debug("ps src %lx dst %lx end %lx pstart %lx pend %lx astart %lx aend %lx\n", + src, (ulong)dst, end, part_start, part_end, aligned_start, aligned_end); + if ((mmc_block_read(mmc_buf, aligned_start, mmc_block_size)) < 0) + { + return -1; + } + memcpy(dst, mmc_buf+part_start, part_len); + dst += part_len; + src += part_len; + } + debug("src %lx dst %lx end %lx pstart %lx pend %lx astart %lx aend %lx\n", + src, (ulong)dst, end, part_start, part_end, aligned_start, aligned_end); + for (; src < aligned_end; src += mmc_block_size, dst += mmc_block_size) + { + debug("al src %lx dst %lx end %lx pstart %lx pend %lx astart %lx aend %lx\n", + src, (ulong)dst, end, part_start, part_end, aligned_start, aligned_end); + if ((mmc_block_read((uchar *)(dst), src, mmc_block_size)) < 0) + { + return -1; + } + } + debug("src %lx dst %lx end %lx pstart %lx pend %lx astart %lx aend %lx\n", + src, (ulong)dst, end, part_start, part_end, aligned_start, aligned_end); + if (part_end && src < end) + { + debug("pe src %lx dst %lx end %lx pstart %lx pend %lx astart %lx aend %lx\n", + src, (ulong)dst, end, part_start, part_end, aligned_start, aligned_end); + if ((mmc_block_read(mmc_buf, aligned_end, mmc_block_size)) < 0) + { + return -1; + } + memcpy(dst, mmc_buf, part_end); + } + return 0; +} + +int +/****************************************************/ +mmc_write(uchar *src, ulong dst, int size) +/****************************************************/ +{ + ulong end, part_start, part_end, part_len, aligned_start, aligned_end; + ulong mmc_block_size, mmc_block_address; + + if (size == 0) + { + return 0; + } + + if (!mmc_ready) + { + printf("Please initial the MMC first\n"); + return -1; + } + + mmc_block_size = MMC_BLOCK_SIZE; + mmc_block_address = ~(mmc_block_size - 1); + + dst -= CFG_MMC_BASE; + end = dst + size; + part_start = ~mmc_block_address & dst; + part_end = ~mmc_block_address & end; + aligned_start = mmc_block_address & dst; + aligned_end = mmc_block_address & end; + + /* all block aligned accesses */ + debug("src %lx dst %lx end %lx pstart %lx pend %lx astart %lx aend %lx\n", + src, (ulong)dst, end, part_start, part_end, aligned_start, aligned_end); + if (part_start) + { + part_len = mmc_block_size - part_start; + debug("ps src %lx dst %lx end %lx pstart %lx pend %lx astart %lx aend %lx\n", + (ulong)src, dst, end, part_start, part_end, aligned_start, aligned_end); + if ((mmc_block_read(mmc_buf, aligned_start, mmc_block_size)) < 0) + { + return -1; + } + memcpy(mmc_buf+part_start, src, part_len); + if ((mmc_block_write(aligned_start, mmc_buf, mmc_block_size)) < 0) + { + return -1; + } + dst += part_len; + src += part_len; + } + debug("src %lx dst %lx end %lx pstart %lx pend %lx astart %lx aend %lx\n", + src, (ulong)dst, end, part_start, part_end, aligned_start, aligned_end); + for (; dst < aligned_end; src += mmc_block_size, dst += mmc_block_size) + { + debug("al src %lx dst %lx end %lx pstart %lx pend %lx astart %lx aend %lx\n", + src, (ulong)dst, end, part_start, part_end, aligned_start, aligned_end); + if ((mmc_block_write(dst, (uchar *)src, mmc_block_size)) < 0) + { + return -1; + } + } + debug("src %lx dst %lx end %lx pstart %lx pend %lx astart %lx aend %lx\n", + src, (ulong)dst, end, part_start, part_end, aligned_start, aligned_end); + if (part_end && dst < end) + { + debug("pe src %lx dst %lx end %lx pstart %lx pend %lx astart %lx aend %lx\n", + src, (ulong)dst, end, part_start, part_end, aligned_start, aligned_end); + if ((mmc_block_read(mmc_buf, aligned_end, mmc_block_size)) < 0) + { + return -1; + } + memcpy(mmc_buf, src, part_end); + if ((mmc_block_write(aligned_end, mmc_buf, mmc_block_size)) < 0) + { + return -1; + } + } + return 0; +} + +int +/****************************************************/ +mmc_bread(int dev_num, ulong blknr, ulong blkcnt, uchar *dst) +/****************************************************/ +{ + int mmc_block_size = MMC_BLOCK_SIZE; + ulong src = blknr * mmc_block_size + CFG_MMC_BASE; + + mmc_read(src, (uchar *)dst, blkcnt*mmc_block_size); + return blkcnt; +} + +int +/****************************************************/ +mmc_init(int verbose) +/****************************************************/ +{ + int retries, rc = -ENODEV; + uchar *resp; + +#ifdef CONFIG_LUBBOCK + set_GPIO_mode( GPIO6_MMCCLK_MD ); + set_GPIO_mode( GPIO8_MMCCS0_MD ); +#endif + CKEN |= CKEN12_MMC; /* enable MMC unit clock */ + + mmc_csd.c_size = 0; + + MMC_CLKRT = MMC_CLKRT_0_3125MHZ; + MMC_RESTO = MMC_RES_TO_MAX; + MMC_SPI = MMC_SPI_DISABLE; + + /* reset */ + retries = 10; + resp = mmc_cmd(0, 0, 0, 0); + resp = mmc_cmd(1, 0x00ff, 0xc000, MMC_CMDAT_INIT|MMC_CMDAT_BUSY|MMC_CMDAT_R3); + while (retries-- && resp && !(resp[4] & 0x80)) + { + debug("resp %x %x\n", resp[0], resp[1]); + udelay(50); + resp = mmc_cmd(1, 0x00ff, 0xff00, MMC_CMDAT_BUSY|MMC_CMDAT_R3); + } + + /* try to get card id */ + resp = mmc_cmd(2, 0, 0, MMC_CMDAT_R2); + if (resp) + { + /* TODO configure mmc driver depending on card attributes */ + mmc_cid_t *cid = (mmc_cid_t *)resp; + if (verbose) + { + printf("MMC found. Card desciption is:\n"); + printf("Manufacturer ID = %02x%02x%02x\n", + cid->id[0], cid->id[1], cid->id[2]); + printf("HW/FW Revision = %x %x\n",cid->hwrev, cid->fwrev); + cid->hwrev = cid->fwrev = 0; /* null terminate string */ + printf("Product Name = %s\n",cid->name); + printf("Serial Number = %02x%02x%02x\n", + cid->sn[0], cid->sn[1], cid->sn[2]); + printf("Month = %d\n",cid->month); + printf("Year = %d\n",1997 + cid->year); + } + + /* MMC exists, get CSD too */ + resp = mmc_cmd(MMC_CMD_SET_RCA, MMC_DEFAULT_RCA, 0, MMC_CMDAT_R1); + resp = mmc_cmd(MMC_CMD_SEND_CSD, MMC_DEFAULT_RCA, 0, MMC_CMDAT_R2); + if (resp) + { + mmc_csd_t *csd = (mmc_csd_t *)resp; + memcpy(&mmc_csd, csd, sizeof(csd)); + rc = 0; + mmc_ready = 1; + /* FIXME add verbose printout for csd */ + } + } + + MMC_CLKRT = 0; /* 20 MHz */ + resp = mmc_cmd(7, MMC_DEFAULT_RCA, 0, MMC_CMDAT_R1); + + fat_register_read(mmc_bread); + + return rc; +} + +int +mmc_ident(block_dev_desc_t *dev) +{ + return 0; +} + +int +mmc2info(ulong addr) +{ + /* FIXME hard codes to 32 MB device */ + if (addr >= CFG_MMC_BASE && addr < CFG_MMC_BASE + 0x02000000) + { + return 1; + } + return 0; +} + +#endif diff --git a/cpu/pxa/pxafb.c b/cpu/pxa/pxafb.c new file mode 100644 index 0000000..f6a2575 --- /dev/null +++ b/cpu/pxa/pxafb.c @@ -0,0 +1,1089 @@ +/* + * (C) Copyright 2001-2002 + * 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 + */ + +/************************************************************************/ +/* ** HEADER FILES */ +/************************************************************************/ + +#define DEBUG 1 +#include <config.h> +#include <common.h> +#include <version.h> +#include <stdarg.h> +#include <lcdvideo.h> +#include <linux/types.h> +#include <devices.h> +#include <asm/arch/pxa-regs.h> + +#ifdef CONFIG_LCD + +/************************************************************************/ +/* ** CONFIG STUFF -- should be moved to board config file */ +/************************************************************************/ +#ifndef CONFIG_EDT32F10 +#define CONFIG_LCD_LOGO +#define LCD_INFO /* Display Logo, (C) and system info */ +#endif + +#ifdef CONFIG_V37 +#undef CONFIG_LCD_LOGO +#undef LCD_INFO +#endif + +#undef CONFIG_LCD_LOGO + +#define LCD_TEST_PATTERN +/* #define LCD_TEST_PATTERN */ /* color backgnd for frame/color adjust */ +/* #define CFG_INVERT_COLORS */ /* Not needed - adjust vl_dp instead */ +/************************************************************************/ + +/************************************************************************/ +/* ** FONT AND LOGO DATA */ +/************************************************************************/ + +#include <video_font.h> /* Get font data, width and height */ + +#ifdef CONFIG_LCD_LOGO +# include <bmp_nexus.h> /* Get logo data, width and height */ +#endif + +/************************************************************************/ +/************************************************************************/ + +/* + * Information about displays we are using. This is for configuring + * the LCD controller and memory allocation. Someone has to know what + * is connected, as we can't autodetect anything. + */ +#define CFG_HIGH 0 /* Pins are active high */ +#define CFG_LOW 1 /* Pins are active low */ + +/* PXA LCD DMA descriptor */ +struct pxafb_dma_descriptor { + u_long fdadr; + u_long fsadr; + u_long fidr; + u_long ldcmd; +}; + +/* PXA LCD info */ +struct pxafb_info { + + /* Misc registers */ + u_long reg_lccr3; + u_long reg_lccr2; + u_long reg_lccr1; + u_long reg_lccr0; + u_long fdadr0; + u_long fdadr1; + + /* DMA descriptors */ + struct pxafb_dma_descriptor * dmadesc_fblow; + struct pxafb_dma_descriptor * dmadesc_fbhigh; + struct pxafb_dma_descriptor * dmadesc_palette; + + u_long screen; /* physical address of frame buffer */ + u_long palette; /* physical address of palette memory */ + u_int palette_size; +}; + +typedef struct vidinfo { + ushort vl_col; /* Number of columns (i.e. 640) */ + ushort vl_row; /* Number of rows (i.e. 480) */ + ushort vl_width; /* Width of display area in millimeters */ + ushort vl_height; /* Height of display area in millimeters */ + + /* LCD configuration register. + */ + u_char vl_clkp; /* Clock polarity */ + u_char vl_oep; /* Output Enable polarity */ + u_char vl_hsp; /* Horizontal Sync polarity */ + u_char vl_vsp; /* Vertical Sync polarity */ + u_char vl_dp; /* Data polarity */ + u_char vl_bpix; /* Bits per pixel, 0 = 1, 1 = 2, 2 = 4, 3 = 8, 4 = 16 */ + u_char vl_lbw; /* LCD Bus width, 0 = 4, 1 = 8 */ + u_char vl_splt; /* Split display, 0 = single-scan, 1 = dual-scan */ + u_char vl_clor; /* Color, 0 = mono, 1 = color */ + u_char vl_tft; /* 0 = passive, 1 = TFT */ + + /* Horizontal control register. Timing from data sheet. + */ + ushort vl_hpw; /* Horz sync pulse width */ + u_char vl_blw; /* Wait before of line */ + u_char vl_elw; /* Wait end of line */ + + /* Vertical control register. + */ + u_char vl_vpw; /* Vertical sync pulse width */ + u_char vl_bfw; /* Wait before of frame */ + u_char vl_efw; /* Wait end of frame */ + + u_char vl_lcdac; /* LCD AC timing */ + + /* PXA LCD controller params + */ + struct pxafb_info pxa; + +} vidinfo_t; + +#define LCD_MONOCHROME 0 +#define LCD_COLOR2 1 +#define LCD_COLOR4 2 +#define LCD_COLOR8 3 +#define LCD_COLOR16 4 + +/*----------------------------------------------------------------------*/ +#define CONFIG_PXA_VGA +#ifdef CONFIG_PXA_VGA +/* + * LCD outputs connected to a video DAC + */ + +#define LCD_BPP LCD_COLOR8 + +/* you have to set lccr0 and lccr3 (including pcd) */ +#define REG_LCCR0 0x003008f8 +#define REG_LCCR3 0x0300FF01 + +/* 640x480x16 @ 61 Hz */ +static vidinfo_t panel_info = { + vl_col: 640, + vl_row: 480, + vl_width: 640, + vl_height: 480, + vl_clkp: CFG_HIGH, + vl_oep: CFG_HIGH, + vl_hsp: CFG_HIGH, + vl_vsp: CFG_HIGH, + vl_dp: CFG_HIGH, + vl_bpix: LCD_BPP, + vl_lbw: 0, + vl_splt: 0, + vl_clor: 0, + vl_lcdac: 0, + vl_tft: 1, + vl_hpw: 40, + vl_blw: 56, + vl_elw: 56, + vl_vpw: 20, + vl_bfw: 8, + vl_efw: 8, +}; +#endif /* CONFIG_PXA_VIDEO */ + +#ifdef CONFIG_SHARP_LM8V31 + +#define LCD_BPP LCD_COLOR8 +#define LCD_INVERT_COLORS /* Needed for colors to be correct, but why? */ + +/* you have to set lccr0 and lccr3 (including pcd) */ +#define REG_LCCR0 0x0030087C +#define REG_LCCR3 0x0340FF08 + +static vidinfo_t panel_info = { + vl_col: 640, + vl_row: 480, + vl_width: 157, + vl_height: 118, + vl_clkp: CFG_HIGH, + vl_oep: CFG_HIGH, + vl_hsp: CFG_HIGH, + vl_vsp: CFG_HIGH, + vl_dp: CFG_HIGH, + vl_bpix: LCD_BPP, + vl_lbw: 0, + vl_splt: 1, + vl_clor: 1, + vl_lcdac: 0, + vl_tft: 0, + vl_hpw: 1, + vl_blw: 3, + vl_elw: 3, + vl_vpw: 1, + vl_bfw: 0, + vl_efw: 0, +}; +#endif /* CONFIG_SHARP_LM8V31 */ + +/*----------------------------------------------------------------------*/ + +/*----------------------------------------------------------------------*/ + +#if defined(LCD_INFO_BELOW_LOGO) +# define LCD_INFO_X 0 +# define LCD_INFO_Y (BMP_LOGO_HEIGHT + VIDEO_FONT_HEIGHT) +#elif defined(CONFIG_LCD_LOGO) +# define LCD_INFO_X (BMP_LOGO_WIDTH + 4 * VIDEO_FONT_WIDTH) +# define LCD_INFO_Y (VIDEO_FONT_HEIGHT) +#else +# define LCD_INFO_X (VIDEO_FONT_WIDTH) +# define LCD_INFO_Y (VIDEO_FONT_HEIGHT) +#endif + +#ifndef LCD_BPP +#define LCD_BPP LCD_COLOR8 +#endif +#ifndef LCD_DF +#define LCD_DF 1 +#endif + +#define NBITS(bit_code) (1 << (bit_code)) +#define NCOLORS(bit_code) (1 << NBITS(bit_code)) + +static int lcd_line_length; + +static int lcd_color_fg; +static int lcd_color_bg; + +static char lcd_is_enabled = 0; /* Indicate that LCD is enabled */ + +/* + * Frame buffer memory information + */ +static void *lcd_base; /* Start of framebuffer memory */ +static void *lcd_console_address; /* Start of console buffer */ + + +/************************************************************************/ +/* ** CONSOLE CONSTANTS */ +/************************************************************************/ + +#if LCD_BPP == LCD_MONOCHROME + +/* + * Simple color definitions + */ +#define CONSOLE_COLOR_BLACK 0 +#define CONSOLE_COLOR_WHITE 1 /* Must remain last / highest */ + +#elif LCD_BPP == LCD_COLOR8 + +/* + * Simple color definitions + */ +#define CONSOLE_COLOR_BLACK 0 +#define CONSOLE_COLOR_RED 1 +#define CONSOLE_COLOR_GREEN 2 +#define CONSOLE_COLOR_YELLOW 3 +#define CONSOLE_COLOR_BLUE 4 +#define CONSOLE_COLOR_MAGENTA 5 +#define CONSOLE_COLOR_CYAN 6 +#define CONSOLE_COLOR_GREY 14 +#define CONSOLE_COLOR_WHITE 15 /* Must remain last / highest */ + +#else /* 16 bit */ + +#define CONSOLE_COLOR_BLACK 0x0000 +#define CONSOLE_COLOR_WHITE 0xffff /* Must remain last / highest */ + +#endif + +#if defined(CONFIG_LCD_LOGO) && (CONSOLE_COLOR_WHITE >= BMP_LOGO_OFFSET) +#error Default Color Map overlaps with Logo Color Map +#endif + +/************************************************************************/ + +#ifndef PAGE_SIZE +#define PAGE_SIZE 4096 +#endif + + +/************************************************************************/ +/* ** CONSOLE DEFINITIONS & FUNCTIONS */ +/************************************************************************/ + +#if defined(CONFIG_LCD_LOGO) && !defined(LCD_INFO_BELOW_LOGO) +#define CONSOLE_ROWS ((panel_info.vl_row-BMP_LOGO_HEIGHT) \ + / VIDEO_FONT_HEIGHT) +#else +#define CONSOLE_ROWS (panel_info.vl_row / VIDEO_FONT_HEIGHT) +#endif +#define CONSOLE_COLS (panel_info.vl_col / VIDEO_FONT_WIDTH) +#define CONSOLE_ROW_SIZE (VIDEO_FONT_HEIGHT * lcd_line_length) +#define CONSOLE_ROW_FIRST (lcd_console_address) +#define CONSOLE_ROW_SECOND (lcd_console_address + CONSOLE_ROW_SIZE) +#define CONSOLE_ROW_LAST (lcd_console_address + CONSOLE_SIZE \ + - CONSOLE_ROW_SIZE) +#define CONSOLE_SIZE (CONSOLE_ROW_SIZE * CONSOLE_ROWS) +#define CONSOLE_SCROLL_SIZE (CONSOLE_SIZE - CONSOLE_ROW_SIZE) + +#if LCD_BPP == LCD_MONOCHROME +#define COLOR_MASK(c) ((c) | (c) << 1 | (c) << 2 | (c) << 3 | \ + (c) << 4 | (c) << 5 | (c) << 6 | (c) << 7) +#elif LCD_BPP == LCD_COLOR8 +#define COLOR_MASK(c) (c) +#elif LCD_BPP == LCD_COLOR16 +#define COLOR_MASK(c) (c) +#else +#error Unsupported LCD BPP. +#endif + +static short console_col; +static short console_row; + +/************************************************************************/ + +ulong lcd_setmem (ulong addr); + +static void lcd_drawchars (ushort x, ushort y, uchar *str, int count); +static inline void lcd_puts_xy (ushort x, ushort y, uchar *s); +static inline void lcd_putc_xy (ushort x, ushort y, uchar c); + +static int lcd_init (void *lcdbase); +static void lcd_ctrl_init (void *lcdbase); +static void lcd_enable (void); +static void *lcd_logo (void); +#if LCD_BPP == LCD_COLOR8 +static void lcd_setcolreg (ushort regno, + ushort red, ushort green, ushort blue); +#endif +#if LCD_BPP == LCD_MONOCHROME +static void lcd_initcolregs (void); +#endif +static void lcd_setfgcolor (int color); +static void lcd_setbgcolor (int color); + +#ifdef NOT_USED_SO_FAR +static int lcd_getbgcolor (void); +static void lcd_disable (void); +static void lcd_getcolreg (ushort regno, + ushort *red, ushort *green, ushort *blue); +static int lcd_getfgcolor (void); +#endif /* NOT_USED_SO_FAR */ + + +static int pxafb_init_mem(void *lcdbase, vidinfo_t *vid); +static void pxafb_setup_gpio(vidinfo_t *vid); +static void pxafb_enable_controller(vidinfo_t *vid); +static int pxafb_init(vidinfo_t *vid); + +/************************************************************************/ + +/*----------------------------------------------------------------------*/ + +static void console_scrollup (void) +{ + /* Copy up rows ignoring the first one */ + memcpy (CONSOLE_ROW_FIRST, CONSOLE_ROW_SECOND, CONSOLE_SCROLL_SIZE); + + /* Clear the last one */ + memset (CONSOLE_ROW_LAST, COLOR_MASK(lcd_color_bg), CONSOLE_ROW_SIZE); +} + +/*----------------------------------------------------------------------*/ + +static inline void console_back (void) +{ + if (--console_col < 0) { + console_col = CONSOLE_COLS-1 ; + if (--console_row < 0) { + console_row = 0; + } + } + + lcd_putc_xy (console_col * VIDEO_FONT_WIDTH, + console_row * VIDEO_FONT_HEIGHT, + ' '); +} + +/*----------------------------------------------------------------------*/ + +static inline void console_newline (void) +{ + ++console_row; + console_col = 0; + + /* Check if we need to scroll the terminal */ + if (console_row >= CONSOLE_ROWS) { + /* Scroll everything up */ + console_scrollup () ; + --console_row; + } +} + +/*----------------------------------------------------------------------*/ + +void lcd_putc (const char c) +{ + if (!lcd_is_enabled) { + serial_putc(c); + return; + } + + switch (c) { + case '\r': console_col = 0; + return; + + case '\n': console_newline(); + return; + + case '\t': /* Tab (8 chars alignment) */ + console_col |= 8; + console_col &= ~7; + + if (console_col >= CONSOLE_COLS) { + console_newline(); + } + return; + + case '\b': console_back(); + return; + + default: lcd_putc_xy (console_col * VIDEO_FONT_WIDTH, + console_row * VIDEO_FONT_HEIGHT, + c); + if (++console_col >= CONSOLE_COLS) { + console_newline(); + } + return; + } + /* NOTREACHED */ +} + +/*----------------------------------------------------------------------*/ + +void lcd_puts (const char *s) +{ + if (!lcd_is_enabled) { + serial_puts (s); + return; + } + + while (*s) { + lcd_putc (*s++); + } +} + +/************************************************************************/ +/* ** Low-Level Graphics Routines */ +/************************************************************************/ + +static void lcd_drawchars (ushort x, ushort y, uchar *str, int count) +{ + uchar *dest; + ushort off, row; + + dest = (uchar *)(lcd_base + y * lcd_line_length + x * (1 << LCD_BPP) / 8); + off = x * (1 << LCD_BPP) % 8; + + for (row=0; row < VIDEO_FONT_HEIGHT; ++row, dest += lcd_line_length) { + uchar *s = str; + uchar *d = dest; + int i; + +#if LCD_BPP == LCD_MONOCHROME + uchar rest = *d & -(1 << (8-off)); + uchar sym; +#endif + for (i=0; i<count; ++i) { + uchar c, bits; + + c = *s++; + bits = video_fontdata[c * VIDEO_FONT_HEIGHT + row]; + +#if LCD_BPP == LCD_MONOCHROME + sym = (COLOR_MASK(lcd_color_fg) & bits) | + (COLOR_MASK(lcd_color_bg) & ~bits); + + *d++ = rest | (sym >> off); + rest = sym << (8-off); +#elif LCD_BPP == LCD_COLOR8 + for (c=0; c<8; ++c) { + *d++ = (bits & 0x80) ? + lcd_color_fg : lcd_color_bg; + bits <<= 1; + } +#elif LCD_BPP == LCD_COLOR16 + for (c=0; c<16; ++c) { + *d++ = (bits & 0x80) ? + lcd_color_fg : lcd_color_bg; + bits <<= 1; + } +#endif + } + +#if LCD_BPP == LCD_MONOCHROME + *d = rest | (*d & ((1 << (8-off)) - 1)); +#endif + } +} + +/*----------------------------------------------------------------------*/ + +static inline void lcd_puts_xy (ushort x, ushort y, uchar *s) +{ +#if defined(CONFIG_LCD_LOGO) && !defined(LCD_INFO_BELOW_LOGO) + lcd_drawchars (x, y+BMP_LOGO_HEIGHT, s, strlen (s)); +#else + lcd_drawchars (x, y, s, strlen (s)); +#endif +} + +/*----------------------------------------------------------------------*/ + +static inline void lcd_putc_xy (ushort x, ushort y, uchar c) +{ +#if defined(CONFIG_LCD_LOGO) && !defined(LCD_INFO_BELOW_LOGO) + lcd_drawchars (x, y+BMP_LOGO_HEIGHT, &c, 1); +#else + lcd_drawchars (x, y, &c, 1); +#endif +} + +/************************************************************************/ +/** Small utility to check that you got the colours right */ +/************************************************************************/ +#ifdef LCD_TEST_PATTERN + +#define N_BLK_VERT 2 +#define N_BLK_HOR 3 + +static int test_colors[N_BLK_HOR*N_BLK_VERT] = { + CONSOLE_COLOR_RED, CONSOLE_COLOR_GREEN, CONSOLE_COLOR_YELLOW, + CONSOLE_COLOR_BLUE, CONSOLE_COLOR_MAGENTA, CONSOLE_COLOR_CYAN, +}; + +static void test_pattern (void) +{ + ushort v_max = panel_info.vl_row; + ushort h_max = panel_info.vl_col; + ushort v_step = (v_max + N_BLK_VERT - 1) / N_BLK_VERT; + ushort h_step = (h_max + N_BLK_HOR - 1) / N_BLK_HOR; + ushort v, h; + uchar *pix = (uchar *)lcd_base; + + printf ("[LCD] Test Pattern: %d x %d [%d x %d]\n", + h_max, v_max, h_step, v_step); + + /* WARNING: Code silently assumes 8bit/pixel */ + for (v=0; v<v_max; ++v) { + uchar iy = v / v_step; + for (h=0; h<h_max; ++h) { + uchar ix = N_BLK_HOR * iy + (h/h_step); + *pix++ = test_colors[ix]; + } + } +} +#endif /* LCD_TEST_PATTERN */ + + +/************************************************************************/ +/* ** GENERIC Initialization Routines */ +/************************************************************************/ + +int drv_lcd_init (void) +{ + DECLARE_GLOBAL_DATA_PTR; + + device_t lcddev; + int rc; + + lcd_base = (void *)(gd->fb_base); + + lcd_line_length = (panel_info.vl_col * NBITS (panel_info.vl_bpix)) / 8; + + lcd_init (lcd_base); /* LCD initialization */ + + /* Device initialization */ + memset (&lcddev, 0, sizeof (lcddev)); + + strcpy (lcddev.name, "lcd"); + lcddev.ext = 0; /* No extensions */ + lcddev.flags = DEV_FLAGS_OUTPUT; /* Output only */ + lcddev.putc = lcd_putc; /* 'putc' function */ + lcddev.puts = lcd_puts; /* 'puts' function */ + + rc = device_register (&lcddev); + return (rc == 0) ? 1 : rc; +} + +/*----------------------------------------------------------------------*/ + +static int lcd_init (void *lcdbase) +{ + /* Initialize the lcd controller */ + debug ("[LCD] Initializing LCD frambuffer at %p\n", lcdbase); + + lcd_ctrl_init (lcdbase); + +#if LCD_BPP == LCD_MONOCHROME + /* Setting the palette */ + lcd_initcolregs(); + +#elif LCD_BPP == LCD_COLOR8 + /* Setting the palette */ + lcd_setcolreg (CONSOLE_COLOR_BLACK, 0, 0, 0); + lcd_setcolreg (CONSOLE_COLOR_RED, 0xFF, 0, 0); + lcd_setcolreg (CONSOLE_COLOR_GREEN, 0, 0xFF, 0); + lcd_setcolreg (CONSOLE_COLOR_YELLOW, 0xFF, 0xFF, 0); + lcd_setcolreg (CONSOLE_COLOR_BLUE, 0, 0, 0xFF); + lcd_setcolreg (CONSOLE_COLOR_MAGENTA, 0xFF, 0, 0xFF); + lcd_setcolreg (CONSOLE_COLOR_CYAN, 0, 0xFF, 0xFF); + lcd_setcolreg (CONSOLE_COLOR_GREY, 0xAA, 0xAA, 0xAA); + lcd_setcolreg (CONSOLE_COLOR_WHITE, 0xFF, 0xFF, 0xFF); +#endif + +#define CFG_WHITE_ON_BLACK +#ifndef CFG_WHITE_ON_BLACK + lcd_setfgcolor (CONSOLE_COLOR_BLACK); + lcd_setbgcolor (CONSOLE_COLOR_WHITE); +#else + lcd_setfgcolor (CONSOLE_COLOR_WHITE); + lcd_setbgcolor (CONSOLE_COLOR_BLACK); +#endif /* CFG_WHITE_ON_BLACK */ + +#ifdef LCD_TEST_PATTERN + test_pattern(); +#else + /* set framebuffer to background color */ + memset ((char *)lcd_base, + COLOR_MASK(lcd_getbgcolor()), + lcd_line_length*panel_info.vl_row); +#endif + + lcd_enable (); + + /* Paint the logo and retrieve LCD base address */ + debug ("[LCD] Drawing the logo...\n"); + lcd_console_address = lcd_logo (); + + /* Initialize the console */ + console_col = 0; +#ifdef LCD_INFO_BELOW_LOGO + console_row = 7 + BMP_LOGO_HEIGHT / VIDEO_FONT_HEIGHT; +#else + console_row = 1; /* leave 1 blank line below logo */ +#endif + lcd_is_enabled = 1; + + return 0; +} + + +/************************************************************************/ +/* ** ROM capable initialization part - needed to reserve FB memory */ +/************************************************************************/ + +/* + * This is called early in the system initialization to grab memory + * for the LCD controller. + * Returns new address for monitor, after reserving LCD buffer memory + * + * Note that this is running from ROM, so no write access to global data. + */ +ulong lcd_setmem (ulong addr) +{ + ulong size; + int line_length = (panel_info.vl_col * NBITS (panel_info.vl_bpix)) / 8; + + debug ("LCD panel info: %d x %d, %d bit/pix\n", + panel_info.vl_col, panel_info.vl_row, NBITS (panel_info.vl_bpix) ); + + /* extra page for dma descriptors and palette */ + size = line_length * panel_info.vl_row + PAGE_SIZE; + + /* Round up to nearest full page */ + size = (size + (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1); + + /* Allocate pages for the frame buffer. */ + addr -= size; + + debug ("Reserving %ldk for LCD Framebuffer at: %08lx\n", size>>10, addr); + + return (addr); +} + + +/************************************************************************/ +/* ----------------- chipset specific functions ----------------------- */ +/************************************************************************/ + +static void lcd_ctrl_init (void *lcdbase) +{ + pxafb_init_mem(lcdbase, &panel_info); + pxafb_init(&panel_info); + pxafb_setup_gpio(&panel_info); + pxafb_enable_controller(&panel_info); +} + +/*----------------------------------------------------------------------*/ + +#ifdef NOT_USED_SO_FAR +static void +lcd_getcolreg (ushort regno, ushort *red, ushort *green, ushort *blue) +{ +} +#endif /* NOT_USED_SO_FAR */ + +/*----------------------------------------------------------------------*/ + +#if LCD_BPP == LCD_COLOR8 +static void +lcd_setcolreg (ushort regno, ushort red, ushort green, ushort blue) +{ + struct pxafb_info *fbi = &panel_info.pxa; + unsigned short *palette = (unsigned short *)fbi->palette; + u_int val; + + if (regno < fbi->palette_size) { + val = ((red << 8) & 0xf800); + val |= ((green << 4) & 0x07e0); + val |= (blue & 0x001f); + +#ifdef LCD_INVERT_COLORS + palette[regno] = ~val; +#else + palette[regno] = ~val; +#endif + } + + debug ("setcolreg: reg %2d @ %p: R=%02X G=%02X B=%02X => %04X\n", + regno, &palette[regno], + red, green, blue, + palette[regno]); +} +#endif /* LCD_COLOR8 */ + +/*----------------------------------------------------------------------*/ + +#if LCD_BPP == LCD_MONOCHROME +static +void lcd_initcolregs (void) +{ + volatile immap_t *immr = (immap_t *) CFG_IMMR; + volatile cpm8xx_t *cp = &(immr->im_cpm); + ushort regno; + + for (regno = 0; regno < 16; regno++) { + cp->lcd_cmap[regno * 2] = 0; + cp->lcd_cmap[(regno * 2) + 1] = regno & 0x0f; + } +} +#endif + +/*----------------------------------------------------------------------*/ + +static void lcd_setfgcolor (int color) +{ + lcd_color_fg = color & 0x0F; +} + +/*----------------------------------------------------------------------*/ + +static void lcd_setbgcolor (int color) +{ + lcd_color_bg = color & 0x0F; +} + +/*----------------------------------------------------------------------*/ + +#ifdef NOT_USED_SO_FAR +static int lcd_getfgcolor (void) +{ + return lcd_color_fg; +} +#endif /* NOT_USED_SO_FAR */ + +/*----------------------------------------------------------------------*/ + +#ifdef NOT_USED_SO_FAR +static int lcd_getbgcolor (void) +{ + return lcd_color_bg; +} +#endif /* NOT_USED_SO_FAR */ + +/*----------------------------------------------------------------------*/ + +static void lcd_enable (void) +{ +} + +/*----------------------------------------------------------------------*/ + +#ifdef NOT_USED_SO_FAR +static void lcd_disable (void) +{ +} +#endif /* NOT_USED_SO_FAR */ + + +/************************************************************************/ +/* ** Chipset depending Bitmap / Logo stuff... */ +/************************************************************************/ + +#ifdef CONFIG_LCD_LOGO +static void bitmap_plot (int x, int y) +{ + ushort *cmap; + ushort i; + uchar *bmap; + uchar *fb; + struct pxafb_info *fbi = &panel_info.pxa; + + debug ("Logo: width %d height %d colors %d cmap %d\n", + BMP_LOGO_WIDTH, BMP_LOGO_HEIGHT, BMP_LOGO_COLORS, + sizeof(bmp_logo_palette)/(sizeof(ushort)) + ); + + /* Leave room for default color map */ + cmap = (ushort *)fbi->palette; + + /* Set color map */ + for (i=0; i<(sizeof(bmp_logo_palette)/(sizeof(ushort))); ++i) { + ushort colreg = bmp_logo_palette[i]; +#ifdef CFG_INVERT_COLORS + colreg ^= 0xFFF; +#endif + *cmap++ = colreg; + } + + bmap = &bmp_logo_bitmap[0]; + fb = (char *)(lcd_base + y * lcd_line_length + x); + + for (i=0; i<BMP_LOGO_HEIGHT; ++i) { + memcpy (fb, bmap, BMP_LOGO_WIDTH); + bmap += BMP_LOGO_WIDTH; + fb += panel_info.vl_col; + } +} +#endif /* CONFIG_LCD_LOGO */ + +/*----------------------------------------------------------------------*/ + +static void *lcd_logo (void) +{ +#ifdef CONFIG_LCD_LOGO + DECLARE_GLOBAL_DATA_PTR; + char info[80]; + char temp[32]; + + bitmap_plot (0, 0); +#endif /* CONFIG_LCD_LOGO */ + +#if defined(CONFIG_LCD_LOGO) && !defined(LCD_INFO_BELOW_LOGO) + return ((void *)((ulong)lcd_base + BMP_LOGO_HEIGHT * lcd_line_length)); +#else + return ((void *)lcd_base); +#endif /* CONFIG_LCD_LOGO */ +} + +/************************************************************************ + PXA255 specific routines +************************************************************************/ + +static int pxafb_init_mem(void *lcdbase, vidinfo_t *vid) +{ + u_long palette_mem_size; + struct pxafb_info *fbi = &vid->pxa; + int fb_size = vid->vl_row * (vid->vl_col * NBITS (vid->vl_bpix)) / 8; + + fbi->screen = (u_long)lcdbase; + + fbi->palette_size = NBITS(vid->vl_bpix) == 8 ? 256 : 16; + palette_mem_size = fbi->palette_size * sizeof(u16); + debug("palette_mem_size = 0x%08lx\n", (u_long) palette_mem_size); + /* locate palette and descs at end of page following fb */ + fbi->palette = (u_long)lcdbase + fb_size + 2*PAGE_SIZE - palette_mem_size; + + return 0; +} + +static void pxafb_setup_gpio(vidinfo_t *vid) +{ + u_long lccr0; + + /* + * setup is based on type of panel supported + */ + + lccr0 = vid->pxa.reg_lccr0; + + /* 4 bit interface */ + if ((lccr0 & LCCR0_CMS) && (lccr0 & LCCR0_SDS) && !(lccr0 & LCCR0_DPD)) + { + debug("Setting GPIO for 4 bit data\n"); + /* bits 58-61 */ + GPDR1 |= (0xf << 26); + GAFR1_U = (GAFR1_U & ~(0xff << 20)) | (0xaa << 20); + + /* bits 74-77 */ + GPDR2 |= (0xf << 10); + GAFR2_L = (GAFR2_L & ~(0xff << 20)) | (0xaa << 20); + } + + /* 8 bit interface */ + else if (((lccr0 & LCCR0_CMS) && ((lccr0 & LCCR0_SDS) || (lccr0 & LCCR0_DPD))) || + (!(lccr0 & LCCR0_CMS) && !(lccr0 & LCCR0_PAS) && !(lccr0 & LCCR0_SDS))) + { + debug("Setting GPIO for 8 bit data\n"); + /* bits 58-65 */ + GPDR1 |= (0x3f << 26); + GPDR2 |= (0x3); + + GAFR1_U = (GAFR1_U & ~(0xfff << 20)) | (0xaaa << 20); + GAFR2_L = (GAFR2_L & ~0xf) | (0xa); + + /* bits 74-77 */ + GPDR2 |= (0xf << 10); + GAFR2_L = (GAFR2_L & ~(0xff << 20)) | (0xaa << 20); + } + + /* 16 bit interface */ + else if (!(lccr0 & LCCR0_CMS) && ((lccr0 & LCCR0_SDS) || (lccr0 & LCCR0_PAS))) + { + debug("Setting GPIO for 16 bit data\n"); + /* bits 58-77 */ + GPDR1 |= (0x3f << 26); + GPDR2 |= 0x00003fff; + + GAFR1_U = (GAFR1_U & ~(0xfff << 20)) | (0xaaa << 20); + GAFR2_L = (GAFR2_L & 0xf0000000) | 0x0aaaaaaa; + } + else + { + printf("pxafb_setup_gpio: unable to determine bits per pixel\n"); + } +} + +static void pxafb_enable_controller(vidinfo_t *vid) +{ + debug("Enabling LCD controller\n"); + + /* Sequence from 11.7.10 */ + LCCR3 = vid->pxa.reg_lccr3; + LCCR2 = vid->pxa.reg_lccr2; + LCCR1 = vid->pxa.reg_lccr1; + LCCR0 = vid->pxa.reg_lccr0 & ~LCCR0_ENB; + FDADR0 = vid->pxa.fdadr0; + FDADR1 = vid->pxa.fdadr1; + LCCR0 |= LCCR0_ENB; + + CKEN |= CKEN16_LCD; + + debug("FDADR0 = 0x%08x\n", (unsigned int)FDADR0); + debug("FDADR1 = 0x%08x\n", (unsigned int)FDADR1); + debug("LCCR0 = 0x%08x\n", (unsigned int)LCCR0); + debug("LCCR1 = 0x%08x\n", (unsigned int)LCCR1); + debug("LCCR2 = 0x%08x\n", (unsigned int)LCCR2); + debug("LCCR3 = 0x%08x\n", (unsigned int)LCCR3); +} + +static int pxafb_init(vidinfo_t *vid) +{ + struct pxafb_info *fbi = &vid->pxa; + + debug("Configuring PXA LCD\n"); + + fbi->reg_lccr0 = REG_LCCR0; + fbi->reg_lccr3 = REG_LCCR3; + + debug("vid: vl_col=%d hslen=%d lm=%d rm=%d\n", + vid->vl_col, vid->vl_hpw, + vid->vl_blw, vid->vl_elw); + debug("vid: vl_row=%d vslen=%d um=%d bm=%d\n", + vid->vl_row, vid->vl_vpw, + vid->vl_bfw, vid->vl_efw); + + fbi->reg_lccr1 = + LCCR1_DisWdth(vid->vl_col) + + LCCR1_HorSnchWdth(vid->vl_hpw) + + LCCR1_BegLnDel(vid->vl_blw) + + LCCR1_EndLnDel(vid->vl_elw); + + fbi->reg_lccr2 = + LCCR2_DisHght(vid->vl_row) + + LCCR2_VrtSnchWdth(vid->vl_vpw) + + LCCR2_BegFrmDel(vid->vl_bfw) + + LCCR2_EndFrmDel(vid->vl_efw); + + fbi->reg_lccr3 = REG_LCCR3 & ~(LCCR3_HSP | LCCR3_VSP); + fbi->reg_lccr3 |= + (vid->vl_hsp ? LCCR3_HorSnchL : LCCR3_HorSnchH) + | (vid->vl_vsp ? LCCR3_VrtSnchL : LCCR3_VrtSnchH); + + + /* setup dma descriptors */ + fbi->dmadesc_fblow = (struct pxafb_dma_descriptor *)((unsigned int)fbi->palette - 3*16); + fbi->dmadesc_fbhigh = (struct pxafb_dma_descriptor *)((unsigned int)fbi->palette - 2*16); + fbi->dmadesc_palette = (struct pxafb_dma_descriptor *)((unsigned int)fbi->palette - 1*16); + + #define BYTES_PER_PANEL ((fbi->reg_lccr0 & LCCR0_SDS) ? \ + (vid->vl_col * vid->vl_row * NBITS(vid->vl_bpix) / 8 / 2) : \ + (vid->vl_col * vid->vl_row * NBITS(vid->vl_bpix) / 8)) + + /* populate descriptors */ + fbi->dmadesc_fblow->fdadr = (u_long)fbi->dmadesc_fblow; + fbi->dmadesc_fblow->fsadr = fbi->screen + BYTES_PER_PANEL; + fbi->dmadesc_fblow->fidr = 0; + fbi->dmadesc_fblow->ldcmd = BYTES_PER_PANEL; + + fbi->fdadr1 = (u_long)fbi->dmadesc_fblow; /* only used in dual-panel mode */ + + fbi->dmadesc_fbhigh->fsadr = fbi->screen; + fbi->dmadesc_fbhigh->fidr = 0; + fbi->dmadesc_fbhigh->ldcmd = BYTES_PER_PANEL; + + fbi->dmadesc_palette->fsadr = fbi->palette; + fbi->dmadesc_palette->fidr = 0; + fbi->dmadesc_palette->ldcmd = (fbi->palette_size * 2) | LDCMD_PAL; + + if( NBITS(vid->vl_bpix) < 12) + { + /* assume any mode with <12 bpp is palette driven */ + fbi->dmadesc_palette->fdadr = (u_long)fbi->dmadesc_fbhigh; + fbi->dmadesc_fbhigh->fdadr = (u_long)fbi->dmadesc_palette; + /* flips back and forth between pal and fbhigh */ + fbi->fdadr0 = (u_long)fbi->dmadesc_palette; + } + else + { + /* palette shouldn't be loaded in true-color mode */ + fbi->dmadesc_fbhigh->fdadr = (u_long)fbi->dmadesc_fbhigh; + fbi->fdadr0 = (u_long)fbi->dmadesc_fbhigh; /* no pal just fbhigh */ + } + + debug("fbi->dmadesc_fblow = 0x%lx\n", (u_long)fbi->dmadesc_fblow); + debug("fbi->dmadesc_fbhigh = 0x%lx\n", (u_long)fbi->dmadesc_fbhigh); + debug("fbi->dmadesc_palette = 0x%lx\n", (u_long)fbi->dmadesc_palette); + + debug("fbi->dmadesc_fblow->fdadr = 0x%lx\n", fbi->dmadesc_fblow->fdadr); + debug("fbi->dmadesc_fbhigh->fdadr = 0x%lx\n", fbi->dmadesc_fbhigh->fdadr); + debug("fbi->dmadesc_palette->fdadr = 0x%lx\n", fbi->dmadesc_palette->fdadr); + + debug("fbi->dmadesc_fblow->fsadr = 0x%lx\n", fbi->dmadesc_fblow->fsadr); + debug("fbi->dmadesc_fbhigh->fsadr = 0x%lx\n", fbi->dmadesc_fbhigh->fsadr); + debug("fbi->dmadesc_palette->fsadr = 0x%lx\n", fbi->dmadesc_palette->fsadr); + + debug("fbi->dmadesc_fblow->ldcmd = 0x%lx\n", fbi->dmadesc_fblow->ldcmd); + debug("fbi->dmadesc_fbhigh->ldcmd = 0x%lx\n", fbi->dmadesc_fbhigh->ldcmd); + debug("fbi->dmadesc_palette->ldcmd = 0x%lx\n", fbi->dmadesc_palette->ldcmd); + + return 0; +} + +/************************************************************************/ +/************************************************************************/ + +#endif /* CONFIG_LCD */ |