diff options
Diffstat (limited to 'drivers')
29 files changed, 2753 insertions, 231 deletions
diff --git a/drivers/block/ata_piix.c b/drivers/block/ata_piix.c index 1e33a66c45..fcae448508 100644 --- a/drivers/block/ata_piix.c +++ b/drivers/block/ata_piix.c @@ -406,6 +406,7 @@ void sata_identify(int num, int dev) /* assuming HD */ sata_dev_desc[devno].type = DEV_TYPE_HARDDISK; sata_dev_desc[devno].blksz = ATA_BLOCKSIZE; + sata_dev_desc[devno].log2blksz = LOG2(sata_dev_desc[devno].blksz); sata_dev_desc[devno].lun = 0; /* just to fill something in... */ } diff --git a/drivers/block/pata_bfin.c b/drivers/block/pata_bfin.c index b847dd91e7..27ecaf4f9e 100644 --- a/drivers/block/pata_bfin.c +++ b/drivers/block/pata_bfin.c @@ -897,6 +897,8 @@ static void bfin_ata_identify(struct ata_port *ap, int dev) /* assuming HD */ sata_dev_desc[ap->port_no].type = DEV_TYPE_HARDDISK; sata_dev_desc[ap->port_no].blksz = ATA_SECT_SIZE; + sata_dev_desc[ap->port_no].log2blksz = + LOG2(sata_dev_desc[ap->port_no].blksz); sata_dev_desc[ap->port_no].lun = 0; /* just to fill something in... */ printf("PATA device#%d %s is found on ata port#%d.\n", diff --git a/drivers/block/systemace.c b/drivers/block/systemace.c index bf29cbbb7a..b08715f7c4 100644 --- a/drivers/block/systemace.c +++ b/drivers/block/systemace.c @@ -127,6 +127,7 @@ block_dev_desc_t *systemace_get_dev(int dev) systemace_dev.part_type = PART_TYPE_UNKNOWN; systemace_dev.type = DEV_TYPE_HARDDISK; systemace_dev.blksz = 512; + systemace_dev.log2blksz = LOG2(systemace_dev.blksz); systemace_dev.removable = 1; systemace_dev.block_read = systemace_read; diff --git a/drivers/dma/apbh_dma.c b/drivers/dma/apbh_dma.c index 0c1cd831e0..510cb28ad5 100644 --- a/drivers/dma/apbh_dma.c +++ b/drivers/dma/apbh_dma.c @@ -31,7 +31,8 @@ #include <asm/arch/clock.h> #include <asm/arch/imx-regs.h> #include <asm/arch/sys_proto.h> -#include <asm/arch/dma.h> +#include <asm/imx-common/dma.h> +#include <asm/imx-common/regs-apbh.h> static struct mxs_dma_chan mxs_dma_channels[MXS_MAX_DMA_CHANNELS]; @@ -226,7 +227,7 @@ static int mxs_dma_reset(int channel) #if defined(CONFIG_MX23) uint32_t setreg = (uint32_t)(&apbh_regs->hw_apbh_ctrl0_set); uint32_t offset = APBH_CTRL0_RESET_CHANNEL_OFFSET; -#elif defined(CONFIG_MX28) +#elif (defined(CONFIG_MX28) || defined(CONFIG_MX6)) uint32_t setreg = (uint32_t)(&apbh_regs->hw_apbh_channel_ctrl_set); uint32_t offset = APBH_CHANNEL_CTRL_RESET_CHANNEL_OFFSET; #endif diff --git a/drivers/fpga/Makefile b/drivers/fpga/Makefile index b48f623c18..0b51dcdef3 100644 --- a/drivers/fpga/Makefile +++ b/drivers/fpga/Makefile @@ -30,6 +30,7 @@ COBJS-y += fpga.o COBJS-$(CONFIG_FPGA_SPARTAN2) += spartan2.o COBJS-$(CONFIG_FPGA_SPARTAN3) += spartan3.o COBJS-$(CONFIG_FPGA_VIRTEX2) += virtex2.o +COBJS-$(CONFIG_FPGA_ZYNQPL) += zynqpl.o COBJS-$(CONFIG_FPGA_XILINX) += xilinx.o COBJS-$(CONFIG_FPGA_LATTICE) += ivm_core.o lattice.o ifdef CONFIG_FPGA_ALTERA diff --git a/drivers/fpga/fpga.c b/drivers/fpga/fpga.c index 26d244354c..f70bff6ed1 100644 --- a/drivers/fpga/fpga.c +++ b/drivers/fpga/fpga.c @@ -22,122 +22,99 @@ * */ -/* - * Generic FPGA support - */ +/* Generic FPGA support */ #include <common.h> /* core U-Boot definitions */ #include <xilinx.h> /* xilinx specific definitions */ #include <altera.h> /* altera specific definitions */ #include <lattice.h> -#if 0 -#define FPGA_DEBUG /* define FPGA_DEBUG to get debug messages */ -#endif - /* Local definitions */ #ifndef CONFIG_MAX_FPGA_DEVICES #define CONFIG_MAX_FPGA_DEVICES 5 #endif -/* Enable/Disable debug console messages */ -#ifdef FPGA_DEBUG -#define PRINTF(fmt,args...) printf (fmt ,##args) -#else -#define PRINTF(fmt,args...) -#endif - /* Local static data */ static int next_desc = FPGA_INVALID_DEVICE; static fpga_desc desc_table[CONFIG_MAX_FPGA_DEVICES]; -/* Local static functions */ -static __attribute__((__const__)) fpga_desc * __attribute__((__const__)) fpga_get_desc( int devnum ); -static __attribute__((__const__)) fpga_desc * __attribute__((__const__)) fpga_validate(int devnum, const void *buf, - size_t bsize, char *fn ); -static int fpga_dev_info( int devnum ); - - -/* ------------------------------------------------------------------------- */ - -/* fpga_no_sup +/* + * fpga_no_sup * 'no support' message function */ -static void fpga_no_sup( char *fn, char *msg ) +static void fpga_no_sup(char *fn, char *msg) { - if ( fn && msg ) { - printf( "%s: No support for %s.\n", fn, msg); - } else if ( msg ) { - printf( "No support for %s.\n", msg); - } else { - printf( "No FPGA suport!\n"); - } + if (fn && msg) + printf("%s: No support for %s.\n", fn, msg); + else if (msg) + printf("No support for %s.\n", msg); + else + printf("No FPGA suport!\n"); } /* fpga_get_desc * map a device number to a descriptor */ -static __attribute__((__const__)) fpga_desc * __attribute__((__const__)) fpga_get_desc( int devnum ) +static const fpga_desc *const fpga_get_desc(int devnum) { - fpga_desc *desc = (fpga_desc * )NULL; + fpga_desc *desc = (fpga_desc *)NULL; - if (( devnum >= 0 ) && (devnum < next_desc )) { + if ((devnum >= 0) && (devnum < next_desc)) { desc = &desc_table[devnum]; - PRINTF( "%s: found fpga descriptor #%d @ 0x%p\n", - __FUNCTION__, devnum, desc ); + debug("%s: found fpga descriptor #%d @ 0x%p\n", + __func__, devnum, desc); } return desc; } - -/* fpga_validate +/* + * fpga_validate * generic parameter checking code */ -static __attribute__((__const__)) fpga_desc * __attribute__((__const__)) fpga_validate(int devnum, const void *buf, - size_t bsize, char *fn ) +const fpga_desc *const fpga_validate(int devnum, const void *buf, + size_t bsize, char *fn) { - fpga_desc * desc = fpga_get_desc( devnum ); + const fpga_desc *desc = fpga_get_desc(devnum); - if ( !desc ) { - printf( "%s: Invalid device number %d\n", fn, devnum ); - } + if (!desc) + printf("%s: Invalid device number %d\n", fn, devnum); - if ( !buf ) { - printf( "%s: Null buffer.\n", fn ); + if (!buf) { + printf("%s: Null buffer.\n", fn); return (fpga_desc * const)NULL; } return desc; } - -/* fpga_dev_info +/* + * fpga_dev_info * generic multiplexing code */ -static int fpga_dev_info( int devnum ) +static int fpga_dev_info(int devnum) { - int ret_val = FPGA_FAIL; /* assume failure */ - const fpga_desc * const desc = fpga_get_desc( devnum ); + int ret_val = FPGA_FAIL; /* assume failure */ + const fpga_desc * const desc = fpga_get_desc(devnum); - if ( desc ) { - PRINTF( "%s: Device Descriptor @ 0x%p\n", - __FUNCTION__, desc->devdesc ); + if (desc) { + debug("%s: Device Descriptor @ 0x%p\n", + __func__, desc->devdesc); - switch ( desc->devtype ) { + switch (desc->devtype) { case fpga_xilinx: #if defined(CONFIG_FPGA_XILINX) - printf( "Xilinx Device\nDescriptor @ 0x%p\n", desc ); - ret_val = xilinx_info( desc->devdesc ); + printf("Xilinx Device\nDescriptor @ 0x%p\n", desc); + ret_val = xilinx_info(desc->devdesc); #else - fpga_no_sup( (char *)__FUNCTION__, "Xilinx devices" ); + fpga_no_sup((char *)__func__, "Xilinx devices"); #endif break; case fpga_altera: #if defined(CONFIG_FPGA_ALTERA) - printf( "Altera Device\nDescriptor @ 0x%p\n", desc ); - ret_val = altera_info( desc->devdesc ); + printf("Altera Device\nDescriptor @ 0x%p\n", desc); + ret_val = altera_info(desc->devdesc); #else - fpga_no_sup( (char *)__FUNCTION__, "Altera devices" ); + fpga_no_sup((char *)__func__, "Altera devices"); #endif break; case fpga_lattice: @@ -145,171 +122,183 @@ static int fpga_dev_info( int devnum ) printf("Lattice Device\nDescriptor @ 0x%p\n", desc); ret_val = lattice_info(desc->devdesc); #else - fpga_no_sup( (char *)__FUNCTION__, "Lattice devices" ); + fpga_no_sup((char *)__func__, "Lattice devices"); #endif break; default: - printf( "%s: Invalid or unsupported device type %d\n", - __FUNCTION__, desc->devtype ); + printf("%s: Invalid or unsupported device type %d\n", + __func__, desc->devtype); } } else { - printf( "%s: Invalid device number %d\n", - __FUNCTION__, devnum ); + printf("%s: Invalid device number %d\n", __func__, devnum); } return ret_val; } - -/* ------------------------------------------------------------------------- */ -/* fgpa_init is usually called from misc_init_r() and MUST be called +/* + * fgpa_init is usually called from misc_init_r() and MUST be called * before any of the other fpga functions are used. */ void fpga_init(void) { next_desc = 0; - memset( desc_table, 0, sizeof(desc_table)); + memset(desc_table, 0, sizeof(desc_table)); - PRINTF( "%s: CONFIG_FPGA = 0x%x\n", __FUNCTION__, CONFIG_FPGA ); + debug("%s\n", __func__); } -/* fpga_count +/* + * fpga_count * Basic interface function to get the current number of devices available. */ -int fpga_count( void ) +int fpga_count(void) { return next_desc; } -/* fpga_add +/* + * fpga_add * Add the device descriptor to the device table. */ -int fpga_add( fpga_type devtype, void *desc ) +int fpga_add(fpga_type devtype, void *desc) { int devnum = FPGA_INVALID_DEVICE; - if ( next_desc < 0 ) { - printf( "%s: FPGA support not initialized!\n", __FUNCTION__ ); - } else if (( devtype > fpga_min_type ) && ( devtype < fpga_undefined )) { - if ( desc ) { - if ( next_desc < CONFIG_MAX_FPGA_DEVICES ) { + if (next_desc < 0) { + printf("%s: FPGA support not initialized!\n", __func__); + } else if ((devtype > fpga_min_type) && (devtype < fpga_undefined)) { + if (desc) { + if (next_desc < CONFIG_MAX_FPGA_DEVICES) { devnum = next_desc; desc_table[next_desc].devtype = devtype; desc_table[next_desc++].devdesc = desc; } else { - printf( "%s: Exceeded Max FPGA device count\n", __FUNCTION__ ); + printf("%s: Exceeded Max FPGA device count\n", + __func__); } } else { - printf( "%s: NULL device descriptor\n", __FUNCTION__ ); + printf("%s: NULL device descriptor\n", __func__); } } else { - printf( "%s: Unsupported FPGA type %d\n", __FUNCTION__, devtype ); + printf("%s: Unsupported FPGA type %d\n", __func__, devtype); } return devnum; } /* - * Generic multiplexing code + * Convert bitstream data and load into the fpga + */ +int __weak fpga_loadbitstream(int devnum, char *fpgadata, size_t size) +{ + printf("Bitstream support not implemented for this FPGA device\n"); + return FPGA_FAIL; +} + +/* + * Generic multiplexing code */ int fpga_load(int devnum, const void *buf, size_t bsize) { int ret_val = FPGA_FAIL; /* assume failure */ - fpga_desc * desc = fpga_validate( devnum, buf, bsize, (char *)__FUNCTION__ ); + const fpga_desc *desc = fpga_validate(devnum, buf, bsize, + (char *)__func__); - if ( desc ) { - switch ( desc->devtype ) { + if (desc) { + switch (desc->devtype) { case fpga_xilinx: #if defined(CONFIG_FPGA_XILINX) - ret_val = xilinx_load( desc->devdesc, buf, bsize ); + ret_val = xilinx_load(desc->devdesc, buf, bsize); #else - fpga_no_sup( (char *)__FUNCTION__, "Xilinx devices" ); + fpga_no_sup((char *)__func__, "Xilinx devices"); #endif break; case fpga_altera: #if defined(CONFIG_FPGA_ALTERA) - ret_val = altera_load( desc->devdesc, buf, bsize ); + ret_val = altera_load(desc->devdesc, buf, bsize); #else - fpga_no_sup( (char *)__FUNCTION__, "Altera devices" ); + fpga_no_sup((char *)__func__, "Altera devices"); #endif break; case fpga_lattice: #if defined(CONFIG_FPGA_LATTICE) ret_val = lattice_load(desc->devdesc, buf, bsize); #else - fpga_no_sup( (char *)__FUNCTION__, "Lattice devices" ); + fpga_no_sup((char *)__func__, "Lattice devices"); #endif break; default: - printf( "%s: Invalid or unsupported device type %d\n", - __FUNCTION__, desc->devtype ); + printf("%s: Invalid or unsupported device type %d\n", + __func__, desc->devtype); } } return ret_val; } -/* fpga_dump +/* + * fpga_dump * generic multiplexing code */ int fpga_dump(int devnum, const void *buf, size_t bsize) { int ret_val = FPGA_FAIL; /* assume failure */ - fpga_desc * desc = fpga_validate( devnum, buf, bsize, (char *)__FUNCTION__ ); + const fpga_desc *desc = fpga_validate(devnum, buf, bsize, + (char *)__func__); - if ( desc ) { - switch ( desc->devtype ) { + if (desc) { + switch (desc->devtype) { case fpga_xilinx: #if defined(CONFIG_FPGA_XILINX) - ret_val = xilinx_dump( desc->devdesc, buf, bsize ); + ret_val = xilinx_dump(desc->devdesc, buf, bsize); #else - fpga_no_sup( (char *)__FUNCTION__, "Xilinx devices" ); + fpga_no_sup((char *)__func__, "Xilinx devices"); #endif break; case fpga_altera: #if defined(CONFIG_FPGA_ALTERA) - ret_val = altera_dump( desc->devdesc, buf, bsize ); + ret_val = altera_dump(desc->devdesc, buf, bsize); #else - fpga_no_sup( (char *)__FUNCTION__, "Altera devices" ); + fpga_no_sup((char *)__func__, "Altera devices"); #endif break; case fpga_lattice: #if defined(CONFIG_FPGA_LATTICE) ret_val = lattice_dump(desc->devdesc, buf, bsize); #else - fpga_no_sup( (char *)__FUNCTION__, "Lattice devices" ); + fpga_no_sup((char *)__func__, "Lattice devices"); #endif break; default: - printf( "%s: Invalid or unsupported device type %d\n", - __FUNCTION__, desc->devtype ); + printf("%s: Invalid or unsupported device type %d\n", + __func__, desc->devtype); } } return ret_val; } - -/* fpga_info +/* + * fpga_info * front end to fpga_dev_info. If devnum is invalid, report on all * available devices. */ -int fpga_info( int devnum ) +int fpga_info(int devnum) { - if ( devnum == FPGA_INVALID_DEVICE ) { - if ( next_desc > 0 ) { + if (devnum == FPGA_INVALID_DEVICE) { + if (next_desc > 0) { int dev; - for ( dev = 0; dev < next_desc; dev++ ) { - fpga_dev_info( dev ); - } + for (dev = 0; dev < next_desc; dev++) + fpga_dev_info(dev); + return FPGA_SUCCESS; } else { - printf( "%s: No FPGA devices available.\n", __FUNCTION__ ); + printf("%s: No FPGA devices available.\n", __func__); return FPGA_FAIL; } } - else return fpga_dev_info( devnum ); -} -/* ------------------------------------------------------------------------- */ + return fpga_dev_info(devnum); +} diff --git a/drivers/fpga/xilinx.c b/drivers/fpga/xilinx.c index 32787b2366..49e943718e 100644 --- a/drivers/fpga/xilinx.c +++ b/drivers/fpga/xilinx.c @@ -1,4 +1,6 @@ /* + * (C) Copyright 2012-2013, Xilinx, Michal Simek + * * (C) Copyright 2002 * Rich Ireland, Enterasys Networks, rireland@enterasys.com. * Keith Outwater, keith_outwater@mvis.com @@ -28,9 +30,11 @@ */ #include <common.h> +#include <fpga.h> #include <virtex2.h> #include <spartan2.h> #include <spartan3.h> +#include <zynqpl.h> #if 0 #define FPGA_DEBUG @@ -48,6 +52,112 @@ static int xilinx_validate (Xilinx_desc * desc, char *fn); /* ------------------------------------------------------------------------- */ +int fpga_loadbitstream(int devnum, char *fpgadata, size_t size) +{ + unsigned int length; + unsigned int swapsize; + char buffer[80]; + unsigned char *dataptr; + unsigned int i; + const fpga_desc *desc; + Xilinx_desc *xdesc; + + dataptr = (unsigned char *)fpgadata; + /* Find out fpga_description */ + desc = fpga_validate(devnum, dataptr, 0, (char *)__func__); + /* Assign xilinx device description */ + xdesc = desc->devdesc; + + /* skip the first bytes of the bitsteam, their meaning is unknown */ + length = (*dataptr << 8) + *(dataptr + 1); + dataptr += 2; + dataptr += length; + + /* get design name (identifier, length, string) */ + length = (*dataptr << 8) + *(dataptr + 1); + dataptr += 2; + if (*dataptr++ != 0x61) { + debug("%s: Design name id not recognized in bitstream\n", + __func__); + return FPGA_FAIL; + } + + length = (*dataptr << 8) + *(dataptr + 1); + dataptr += 2; + for (i = 0; i < length; i++) + buffer[i] = *dataptr++; + + printf(" design filename = \"%s\"\n", buffer); + + /* get part number (identifier, length, string) */ + if (*dataptr++ != 0x62) { + printf("%s: Part number id not recognized in bitstream\n", + __func__); + return FPGA_FAIL; + } + + length = (*dataptr << 8) + *(dataptr + 1); + dataptr += 2; + for (i = 0; i < length; i++) + buffer[i] = *dataptr++; + + if (xdesc->name) { + i = strncmp(buffer, xdesc->name, strlen(xdesc->name)); + if (i) { + printf("%s: Wrong bitstream ID for this device\n", + __func__); + printf("%s: Bitstream ID %s, current device ID %d/%s\n", + __func__, buffer, devnum, xdesc->name); + return FPGA_FAIL; + } + } else { + printf("%s: Please fill correct device ID to Xilinx_desc\n", + __func__); + } + printf(" part number = \"%s\"\n", buffer); + + /* get date (identifier, length, string) */ + if (*dataptr++ != 0x63) { + printf("%s: Date identifier not recognized in bitstream\n", + __func__); + return FPGA_FAIL; + } + + length = (*dataptr << 8) + *(dataptr+1); + dataptr += 2; + for (i = 0; i < length; i++) + buffer[i] = *dataptr++; + printf(" date = \"%s\"\n", buffer); + + /* get time (identifier, length, string) */ + if (*dataptr++ != 0x64) { + printf("%s: Time identifier not recognized in bitstream\n", + __func__); + return FPGA_FAIL; + } + + length = (*dataptr << 8) + *(dataptr+1); + dataptr += 2; + for (i = 0; i < length; i++) + buffer[i] = *dataptr++; + printf(" time = \"%s\"\n", buffer); + + /* get fpga data length (identifier, length) */ + if (*dataptr++ != 0x65) { + printf("%s: Data length id not recognized in bitstream\n", + __func__); + return FPGA_FAIL; + } + swapsize = ((unsigned int) *dataptr << 24) + + ((unsigned int) *(dataptr + 1) << 16) + + ((unsigned int) *(dataptr + 2) << 8) + + ((unsigned int) *(dataptr + 3)); + dataptr += 4; + printf(" bytes in bitstream = %d\n", swapsize); + + return fpga_load(devnum, dataptr, swapsize); +} + int xilinx_load(Xilinx_desc *desc, const void *buf, size_t bsize) { int ret_val = FPGA_FAIL; /* assume a failure */ @@ -86,6 +196,16 @@ int xilinx_load(Xilinx_desc *desc, const void *buf, size_t bsize) __FUNCTION__); #endif break; + case xilinx_zynq: +#if defined(CONFIG_FPGA_ZYNQPL) + PRINTF("%s: Launching the Zynq PL Loader...\n", + __func__); + ret_val = zynq_load(desc, buf, bsize); +#else + printf("%s: No support for Zynq devices.\n", + __func__); +#endif + break; default: printf ("%s: Unsupported family type, %d\n", @@ -133,6 +253,16 @@ int xilinx_dump(Xilinx_desc *desc, const void *buf, size_t bsize) __FUNCTION__); #endif break; + case xilinx_zynq: +#if defined(CONFIG_FPGA_ZYNQPL) + PRINTF("%s: Launching the Zynq PL Reader...\n", + __func__); + ret_val = zynq_dump(desc, buf, bsize); +#else + printf("%s: No support for Zynq devices.\n", + __func__); +#endif + break; default: printf ("%s: Unsupported family type, %d\n", @@ -158,6 +288,9 @@ int xilinx_info (Xilinx_desc * desc) case Xilinx_Virtex2: printf ("Virtex-II\n"); break; + case xilinx_zynq: + printf("Zynq PL\n"); + break; /* Add new family types here */ default: printf ("Unknown family type, %d\n", desc->family); @@ -183,6 +316,9 @@ int xilinx_info (Xilinx_desc * desc) case master_selectmap: printf ("Master SelectMap Mode\n"); break; + case devcfg: + printf("Device configuration interface (Zynq)\n"); + break; /* Add new interface types here */ default: printf ("Unsupported interface type, %d\n", desc->iface); @@ -191,6 +327,8 @@ int xilinx_info (Xilinx_desc * desc) printf ("Device Size: \t%d bytes\n" "Cookie: \t0x%x (%d)\n", desc->size, desc->cookie, desc->cookie); + if (desc->name) + printf("Device name: \t%s\n", desc->name); if (desc->iface_fns) { printf ("Device Function Table @ 0x%p\n", desc->iface_fns); @@ -222,6 +360,14 @@ int xilinx_info (Xilinx_desc * desc) __FUNCTION__); #endif break; + case xilinx_zynq: +#if defined(CONFIG_FPGA_ZYNQPL) + zynq_info(desc); +#else + /* just in case */ + printf("%s: No support for Zynq devices.\n", + __func__); +#endif /* Add new family types here */ default: /* we don't need a message here - we give one up above */ diff --git a/drivers/fpga/zynqpl.c b/drivers/fpga/zynqpl.c new file mode 100644 index 0000000000..8feccdea48 --- /dev/null +++ b/drivers/fpga/zynqpl.c @@ -0,0 +1,355 @@ +/* + * (C) Copyright 2012-2013, Xilinx, Michal Simek + * + * (C) Copyright 2012 + * Joe Hershberger <joe.hershberger@ni.com> + * + * 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 <asm/io.h> +#include <zynqpl.h> +#include <asm/arch/hardware.h> +#include <asm/arch/sys_proto.h> + +#define DEVCFG_CTRL_PCFG_PROG_B 0x40000000 +#define DEVCFG_ISR_FATAL_ERROR_MASK 0x00740040 +#define DEVCFG_ISR_ERROR_FLAGS_MASK 0x00340840 +#define DEVCFG_ISR_RX_FIFO_OV 0x00040000 +#define DEVCFG_ISR_DMA_DONE 0x00002000 +#define DEVCFG_ISR_PCFG_DONE 0x00000004 +#define DEVCFG_STATUS_DMA_CMD_Q_F 0x80000000 +#define DEVCFG_STATUS_DMA_CMD_Q_E 0x40000000 +#define DEVCFG_STATUS_DMA_DONE_CNT_MASK 0x30000000 +#define DEVCFG_STATUS_PCFG_INIT 0x00000010 +#define DEVCFG_MCTRL_RFIFO_FLUSH 0x00000002 +#define DEVCFG_MCTRL_WFIFO_FLUSH 0x00000001 + +#ifndef CONFIG_SYS_FPGA_WAIT +#define CONFIG_SYS_FPGA_WAIT CONFIG_SYS_HZ/100 /* 10 ms */ +#endif + +#ifndef CONFIG_SYS_FPGA_PROG_TIME +#define CONFIG_SYS_FPGA_PROG_TIME CONFIG_SYS_HZ /* 1 s */ +#endif + +int zynq_info(Xilinx_desc *desc) +{ + return FPGA_SUCCESS; +} + +#define DUMMY_WORD 0xffffffff + +/* Xilinx binary format header */ +static const u32 bin_format[] = { + DUMMY_WORD, /* Dummy words */ + DUMMY_WORD, + DUMMY_WORD, + DUMMY_WORD, + DUMMY_WORD, + DUMMY_WORD, + DUMMY_WORD, + DUMMY_WORD, + 0x000000bb, /* Sync word */ + 0x11220044, /* Sync word */ + DUMMY_WORD, + DUMMY_WORD, + 0xaa995566, /* Sync word */ +}; + +#define SWAP_NO 1 +#define SWAP_DONE 2 + +/* + * Load the whole word from unaligned buffer + * Keep in your mind that it is byte loading on little-endian system + */ +static u32 load_word(const void *buf, u32 swap) +{ + u32 word = 0; + u8 *bitc = (u8 *)buf; + int p; + + if (swap == SWAP_NO) { + for (p = 0; p < 4; p++) { + word <<= 8; + word |= bitc[p]; + } + } else { + for (p = 3; p >= 0; p--) { + word <<= 8; + word |= bitc[p]; + } + } + + return word; +} + +static u32 check_header(const void *buf) +{ + u32 i, pattern; + int swap = SWAP_NO; + u32 *test = (u32 *)buf; + + debug("%s: Let's check bitstream header\n", __func__); + + /* Checking that passing bin is not a bitstream */ + for (i = 0; i < ARRAY_SIZE(bin_format); i++) { + pattern = load_word(&test[i], swap); + + /* + * Bitstreams in binary format are swapped + * compare to regular bistream. + * Do not swap dummy word but if swap is done assume + * that parsing buffer is binary format + */ + if ((__swab32(pattern) != DUMMY_WORD) && + (__swab32(pattern) == bin_format[i])) { + pattern = __swab32(pattern); + swap = SWAP_DONE; + debug("%s: data swapped - let's swap\n", __func__); + } + + debug("%s: %d/%x: pattern %x/%x bin_format\n", __func__, i, + (u32)&test[i], pattern, bin_format[i]); + if (pattern != bin_format[i]) { + debug("%s: Bitstream is not recognized\n", __func__); + return 0; + } + } + debug("%s: Found bitstream header at %x %s swapinng\n", __func__, + (u32)buf, swap == SWAP_NO ? "without" : "with"); + + return swap; +} + +static void *check_data(u8 *buf, size_t bsize, u32 *swap) +{ + u32 word, p = 0; /* possition */ + + /* Because buf doesn't need to be aligned let's read it by chars */ + for (p = 0; p < bsize; p++) { + word = load_word(&buf[p], SWAP_NO); + debug("%s: word %x %x/%x\n", __func__, word, p, (u32)&buf[p]); + + /* Find the first bitstream dummy word */ + if (word == DUMMY_WORD) { + debug("%s: Found dummy word at position %x/%x\n", + __func__, p, (u32)&buf[p]); + *swap = check_header(&buf[p]); + if (*swap) { + /* FIXME add full bitstream checking here */ + return &buf[p]; + } + } + /* Loop can be huge - support CTRL + C */ + if (ctrlc()) + return 0; + } + return 0; +} + + +int zynq_load(Xilinx_desc *desc, const void *buf, size_t bsize) +{ + unsigned long ts; /* Timestamp */ + u32 partialbit = 0; + u32 i, control, isr_status, status, swap, diff; + u32 *buf_start; + + /* Detect if we are going working with partial or full bitstream */ + if (bsize != desc->size) { + printf("%s: Working with partial bitstream\n", __func__); + partialbit = 1; + } + + buf_start = check_data((u8 *)buf, bsize, &swap); + if (!buf_start) + return FPGA_FAIL; + + /* Check if data is postpone from start */ + diff = (u32)buf_start - (u32)buf; + if (diff) { + printf("%s: Bitstream is not validated yet (diff %x)\n", + __func__, diff); + return FPGA_FAIL; + } + + if ((u32)buf_start & 0x3) { + u32 *new_buf = (u32 *)((u32)buf & ~0x3); + + printf("%s: Align buffer at %x to %x(swap %d)\n", __func__, + (u32)buf_start, (u32)new_buf, swap); + + for (i = 0; i < (bsize/4); i++) + new_buf[i] = load_word(&buf_start[i], swap); + + swap = SWAP_DONE; + buf = new_buf; + } else if (swap != SWAP_DONE) { + /* For bitstream which are aligned */ + u32 *new_buf = (u32 *)buf; + + printf("%s: Bitstream is not swapped(%d) - swap it\n", __func__, + swap); + + for (i = 0; i < (bsize/4); i++) + new_buf[i] = load_word(&buf_start[i], swap); + + swap = SWAP_DONE; + } + + if (!partialbit) { + zynq_slcr_devcfg_disable(); + + /* Setting PCFG_PROG_B signal to high */ + control = readl(&devcfg_base->ctrl); + writel(control | DEVCFG_CTRL_PCFG_PROG_B, &devcfg_base->ctrl); + /* Setting PCFG_PROG_B signal to low */ + writel(control & ~DEVCFG_CTRL_PCFG_PROG_B, &devcfg_base->ctrl); + + /* Polling the PCAP_INIT status for Reset */ + ts = get_timer(0); + while (readl(&devcfg_base->status) & DEVCFG_STATUS_PCFG_INIT) { + if (get_timer(ts) > CONFIG_SYS_FPGA_WAIT) { + printf("%s: Timeout wait for INIT to clear\n", + __func__); + return FPGA_FAIL; + } + } + + /* Setting PCFG_PROG_B signal to high */ + writel(control | DEVCFG_CTRL_PCFG_PROG_B, &devcfg_base->ctrl); + + /* Polling the PCAP_INIT status for Set */ + ts = get_timer(0); + while (!(readl(&devcfg_base->status) & + DEVCFG_STATUS_PCFG_INIT)) { + if (get_timer(ts) > CONFIG_SYS_FPGA_WAIT) { + printf("%s: Timeout wait for INIT to set\n", + __func__); + return FPGA_FAIL; + } + } + } + + isr_status = readl(&devcfg_base->int_sts); + + /* Clear it all, so if Boot ROM comes back, it can proceed */ + writel(0xFFFFFFFF, &devcfg_base->int_sts); + + if (isr_status & DEVCFG_ISR_FATAL_ERROR_MASK) { + debug("%s: Fatal errors in PCAP 0x%X\n", __func__, isr_status); + + /* If RX FIFO overflow, need to flush RX FIFO first */ + if (isr_status & DEVCFG_ISR_RX_FIFO_OV) { + writel(DEVCFG_MCTRL_RFIFO_FLUSH, &devcfg_base->mctrl); + writel(0xFFFFFFFF, &devcfg_base->int_sts); + } + return FPGA_FAIL; + } + + status = readl(&devcfg_base->status); + + debug("%s: Status = 0x%08X\n", __func__, status); + + if (status & DEVCFG_STATUS_DMA_CMD_Q_F) { + debug("%s: Error: device busy\n", __func__); + return FPGA_FAIL; + } + + debug("%s: Device ready\n", __func__); + + if (!(status & DEVCFG_STATUS_DMA_CMD_Q_E)) { + if (!(readl(&devcfg_base->int_sts) & DEVCFG_ISR_DMA_DONE)) { + /* Error state, transfer cannot occur */ + debug("%s: ISR indicates error\n", __func__); + return FPGA_FAIL; + } else { + /* Clear out the status */ + writel(DEVCFG_ISR_DMA_DONE, &devcfg_base->int_sts); + } + } + + if (status & DEVCFG_STATUS_DMA_DONE_CNT_MASK) { + /* Clear the count of completed DMA transfers */ + writel(DEVCFG_STATUS_DMA_DONE_CNT_MASK, &devcfg_base->status); + } + + debug("%s: Source = 0x%08X\n", __func__, (u32)buf); + debug("%s: Size = %zu\n", __func__, bsize); + + /* Set up the transfer */ + writel((u32)buf | 1, &devcfg_base->dma_src_addr); + writel(0xFFFFFFFF, &devcfg_base->dma_dst_addr); + writel(bsize >> 2, &devcfg_base->dma_src_len); + writel(0, &devcfg_base->dma_dst_len); + + isr_status = readl(&devcfg_base->int_sts); + + /* Polling the PCAP_INIT status for Set */ + ts = get_timer(0); + while (!(isr_status & DEVCFG_ISR_DMA_DONE)) { + if (isr_status & DEVCFG_ISR_ERROR_FLAGS_MASK) { + debug("%s: Error: isr = 0x%08X\n", __func__, + isr_status); + debug("%s: Write count = 0x%08X\n", __func__, + readl(&devcfg_base->write_count)); + debug("%s: Read count = 0x%08X\n", __func__, + readl(&devcfg_base->read_count)); + + return FPGA_FAIL; + } + if (get_timer(ts) > CONFIG_SYS_FPGA_PROG_TIME) { + printf("%s: Timeout wait for DMA to complete\n", + __func__); + return FPGA_FAIL; + } + isr_status = readl(&devcfg_base->int_sts); + } + + debug("%s: DMA transfer is done\n", __func__); + + /* Check FPGA configuration completion */ + ts = get_timer(0); + while (!(isr_status & DEVCFG_ISR_PCFG_DONE)) { + if (get_timer(ts) > CONFIG_SYS_FPGA_WAIT) { + printf("%s: Timeout wait for FPGA to config\n", + __func__); + return FPGA_FAIL; + } + isr_status = readl(&devcfg_base->int_sts); + } + + debug("%s: FPGA config done\n", __func__); + + /* Clear out the DMA status */ + writel(DEVCFG_ISR_DMA_DONE, &devcfg_base->int_sts); + + if (!partialbit) + zynq_slcr_devcfg_enable(); + + return FPGA_SUCCESS; +} + +int zynq_dump(Xilinx_desc *desc, const void *buf, size_t bsize) +{ + return FPGA_FAIL; +} diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile index 8cdc3b649c..5d869b47ad 100644 --- a/drivers/misc/Makefile +++ b/drivers/misc/Makefile @@ -28,8 +28,10 @@ LIB := $(obj)libmisc.o COBJS-$(CONFIG_ALI152X) += ali512x.o COBJS-$(CONFIG_DS4510) += ds4510.o COBJS-$(CONFIG_CBMEM_CONSOLE) += cbmem_console.o +COBJS-$(CONFIG_FSL_IIM) += fsl_iim.o COBJS-$(CONFIG_GPIO_LED) += gpio_led.o COBJS-$(CONFIG_FSL_MC9SDZ60) += mc9sdz60.o +COBJS-$(CONFIG_MXC_OCOTP) += mxc_ocotp.o COBJS-$(CONFIG_NS87308) += ns87308.o COBJS-$(CONFIG_PDSP188x) += pdsp188x.o COBJS-$(CONFIG_STATUS_LED) += status_led.o diff --git a/drivers/misc/fsl_iim.c b/drivers/misc/fsl_iim.c new file mode 100644 index 0000000000..9179fbb0db --- /dev/null +++ b/drivers/misc/fsl_iim.c @@ -0,0 +1,286 @@ +/* + * (C) Copyright 2009-2013 ADVANSEE + * Benoît Thébaudeau <benoit.thebaudeau@advansee.com> + * + * Based on the mpc512x iim code: + * Copyright 2008 Silicon Turnkey Express, Inc. + * Martha Marx <mmarx@silicontkx.com> + * + * 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 <fuse.h> +#include <asm/errno.h> +#include <asm/io.h> +#ifndef CONFIG_MPC512X +#include <asm/arch/imx-regs.h> +#endif + +/* FSL IIM-specific constants */ +#define STAT_BUSY 0x80 +#define STAT_PRGD 0x02 +#define STAT_SNSD 0x01 + +#define STATM_PRGD_M 0x02 +#define STATM_SNSD_M 0x01 + +#define ERR_PRGE 0x80 +#define ERR_WPE 0x40 +#define ERR_OPE 0x20 +#define ERR_RPE 0x10 +#define ERR_WLRE 0x08 +#define ERR_SNSE 0x04 +#define ERR_PARITYE 0x02 + +#define EMASK_PRGE_M 0x80 +#define EMASK_WPE_M 0x40 +#define EMASK_OPE_M 0x20 +#define EMASK_RPE_M 0x10 +#define EMASK_WLRE_M 0x08 +#define EMASK_SNSE_M 0x04 +#define EMASK_PARITYE_M 0x02 + +#define FCTL_DPC 0x80 +#define FCTL_PRG_LENGTH_MASK 0x70 +#define FCTL_ESNS_N 0x08 +#define FCTL_ESNS_0 0x04 +#define FCTL_ESNS_1 0x02 +#define FCTL_PRG 0x01 + +#define UA_A_BANK_MASK 0x38 +#define UA_A_ROWH_MASK 0x07 + +#define LA_A_ROWL_MASK 0xf8 +#define LA_A_BIT_MASK 0x07 + +#define PREV_PROD_REV_MASK 0xf8 +#define PREV_PROD_VT_MASK 0x07 + +/* Select the correct accessors depending on endianness */ +#if __BYTE_ORDER == __LITTLE_ENDIAN +#define iim_read32 in_le32 +#define iim_write32 out_le32 +#define iim_clrsetbits32 clrsetbits_le32 +#define iim_clrbits32 clrbits_le32 +#define iim_setbits32 setbits_le32 +#elif __BYTE_ORDER == __BIG_ENDIAN +#define iim_read32 in_be32 +#define iim_write32 out_be32 +#define iim_clrsetbits32 clrsetbits_be32 +#define iim_clrbits32 clrbits_be32 +#define iim_setbits32 setbits_be32 +#else +#error Endianess is not defined: please fix to continue +#endif + +/* IIM control registers */ +struct fsl_iim { + u32 stat; + u32 statm; + u32 err; + u32 emask; + u32 fctl; + u32 ua; + u32 la; + u32 sdat; + u32 prev; + u32 srev; + u32 prg_p; + u32 scs[0x1f5]; + struct { + u32 word[0x100]; + } bank[8]; +}; + +static int prepare_access(struct fsl_iim **regs, u32 bank, u32 word, int assert, + const char *caller) +{ + *regs = (struct fsl_iim *)IIM_BASE_ADDR; + + if (bank >= ARRAY_SIZE((*regs)->bank) || + word >= ARRAY_SIZE((*regs)->bank[0].word) || + !assert) { + printf("fsl_iim %s(): Invalid argument\n", caller); + return -EINVAL; + } + + return 0; +} + +static void clear_status(struct fsl_iim *regs) +{ + iim_setbits32(®s->stat, 0); + iim_setbits32(®s->err, 0); +} + +static void finish_access(struct fsl_iim *regs, u32 *stat, u32 *err) +{ + *stat = iim_read32(®s->stat); + *err = iim_read32(®s->err); + clear_status(regs); +} + +static int prepare_read(struct fsl_iim **regs, u32 bank, u32 word, u32 *val, + const char *caller) +{ + int ret; + + ret = prepare_access(regs, bank, word, val != NULL, caller); + if (ret) + return ret; + + clear_status(*regs); + + return 0; +} + +int fuse_read(u32 bank, u32 word, u32 *val) +{ + struct fsl_iim *regs; + u32 stat, err; + int ret; + + ret = prepare_read(®s, bank, word, val, __func__); + if (ret) + return ret; + + *val = iim_read32(®s->bank[bank].word[word]); + finish_access(regs, &stat, &err); + + if (err & ERR_RPE) { + puts("fsl_iim fuse_read(): Read protect error\n"); + return -EIO; + } + + return 0; +} + +static void direct_access(struct fsl_iim *regs, u32 bank, u32 word, u32 bit, + u32 fctl, u32 *stat, u32 *err) +{ + iim_write32(®s->ua, bank << 3 | word >> 5); + iim_write32(®s->la, (word << 3 | bit) & 0xff); + if (fctl == FCTL_PRG) + iim_write32(®s->prg_p, 0xaa); + iim_setbits32(®s->fctl, fctl); + while (iim_read32(®s->stat) & STAT_BUSY) + udelay(20); + finish_access(regs, stat, err); +} + +int fuse_sense(u32 bank, u32 word, u32 *val) +{ + struct fsl_iim *regs; + u32 stat, err; + int ret; + + ret = prepare_read(®s, bank, word, val, __func__); + if (ret) + return ret; + + direct_access(regs, bank, word, 0, FCTL_ESNS_N, &stat, &err); + + if (err & ERR_SNSE) { + puts("fsl_iim fuse_sense(): Explicit sense cycle error\n"); + return -EIO; + } + + if (!(stat & STAT_SNSD)) { + puts("fsl_iim fuse_sense(): Explicit sense cycle did not complete\n"); + return -EIO; + } + + *val = iim_read32(®s->sdat); + return 0; +} + +static int prog_bit(struct fsl_iim *regs, u32 bank, u32 word, u32 bit) +{ + u32 stat, err; + + clear_status(regs); + direct_access(regs, bank, word, bit, FCTL_PRG, &stat, &err); + iim_write32(®s->prg_p, 0x00); + + if (err & ERR_PRGE) { + puts("fsl_iim fuse_prog(): Program error\n"); + return -EIO; + } + + if (err & ERR_WPE) { + puts("fsl_iim fuse_prog(): Write protect error\n"); + return -EIO; + } + + if (!(stat & STAT_PRGD)) { + puts("fsl_iim fuse_prog(): Program did not complete\n"); + return -EIO; + } + + return 0; +} + +static int prepare_write(struct fsl_iim **regs, u32 bank, u32 word, u32 val, + const char *caller) +{ + return prepare_access(regs, bank, word, !(val & ~0xff), caller); +} + +int fuse_prog(u32 bank, u32 word, u32 val) +{ + struct fsl_iim *regs; + u32 bit; + int ret; + + ret = prepare_write(®s, bank, word, val, __func__); + if (ret) + return ret; + + for (bit = 0; val; bit++, val >>= 1) + if (val & 0x01) { + ret = prog_bit(regs, bank, word, bit); + if (ret) + return ret; + } + + return 0; +} + +int fuse_override(u32 bank, u32 word, u32 val) +{ + struct fsl_iim *regs; + u32 stat, err; + int ret; + + ret = prepare_write(®s, bank, word, val, __func__); + if (ret) + return ret; + + clear_status(regs); + iim_write32(®s->bank[bank].word[word], val); + finish_access(regs, &stat, &err); + + if (err & ERR_OPE) { + puts("fsl_iim fuse_override(): Override protect error\n"); + return -EIO; + } + + return 0; +} diff --git a/drivers/misc/mxc_ocotp.c b/drivers/misc/mxc_ocotp.c new file mode 100644 index 0000000000..0095b471bd --- /dev/null +++ b/drivers/misc/mxc_ocotp.c @@ -0,0 +1,216 @@ +/* + * (C) Copyright 2013 ADVANSEE + * Benoît Thébaudeau <benoit.thebaudeau@advansee.com> + * + * Based on Dirk Behme's + * https://github.com/dirkbehme/u-boot-imx6/blob/28b17e9/drivers/misc/imx_otp.c, + * which is based on Freescale's + * http://git.freescale.com/git/cgit.cgi/imx/uboot-imx.git/tree/drivers/misc/imx_otp.c?h=imx_v2009.08_1.1.0&id=9aa74e6, + * which is: + * Copyright (C) 2011 Freescale Semiconductor, Inc. + * + * 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 <fuse.h> +#include <asm/errno.h> +#include <asm/io.h> +#include <asm/arch/clock.h> +#include <asm/arch/imx-regs.h> + +#define BO_CTRL_WR_UNLOCK 16 +#define BM_CTRL_WR_UNLOCK 0xffff0000 +#define BV_CTRL_WR_UNLOCK_KEY 0x3e77 +#define BM_CTRL_ERROR 0x00000200 +#define BM_CTRL_BUSY 0x00000100 +#define BO_CTRL_ADDR 0 +#define BM_CTRL_ADDR 0x0000007f + +#define BO_TIMING_STROBE_READ 16 +#define BM_TIMING_STROBE_READ 0x003f0000 +#define BV_TIMING_STROBE_READ_NS 37 +#define BO_TIMING_RELAX 12 +#define BM_TIMING_RELAX 0x0000f000 +#define BV_TIMING_RELAX_NS 17 +#define BO_TIMING_STROBE_PROG 0 +#define BM_TIMING_STROBE_PROG 0x00000fff +#define BV_TIMING_STROBE_PROG_US 10 + +#define BM_READ_CTRL_READ_FUSE 0x00000001 + +#define BF(value, field) (((value) << BO_##field) & BM_##field) + +#define WRITE_POSTAMBLE_US 2 + +static void wait_busy(struct ocotp_regs *regs, unsigned int delay_us) +{ + while (readl(®s->ctrl) & BM_CTRL_BUSY) + udelay(delay_us); +} + +static void clear_error(struct ocotp_regs *regs) +{ + writel(BM_CTRL_ERROR, ®s->ctrl_clr); +} + +static int prepare_access(struct ocotp_regs **regs, u32 bank, u32 word, + int assert, const char *caller) +{ + *regs = (struct ocotp_regs *)OCOTP_BASE_ADDR; + + if (bank >= ARRAY_SIZE((*regs)->bank) || + word >= ARRAY_SIZE((*regs)->bank[0].fuse_regs) >> 2 || + !assert) { + printf("mxc_ocotp %s(): Invalid argument\n", caller); + return -EINVAL; + } + + enable_ocotp_clk(1); + + wait_busy(*regs, 1); + clear_error(*regs); + + return 0; +} + +static int finish_access(struct ocotp_regs *regs, const char *caller) +{ + u32 err; + + err = !!(readl(®s->ctrl) & BM_CTRL_ERROR); + clear_error(regs); + + enable_ocotp_clk(0); + + if (err) { + printf("mxc_ocotp %s(): Access protect error\n", caller); + return -EIO; + } + + return 0; +} + +static int prepare_read(struct ocotp_regs **regs, u32 bank, u32 word, u32 *val, + const char *caller) +{ + return prepare_access(regs, bank, word, val != NULL, caller); +} + +int fuse_read(u32 bank, u32 word, u32 *val) +{ + struct ocotp_regs *regs; + int ret; + + ret = prepare_read(®s, bank, word, val, __func__); + if (ret) + return ret; + + *val = readl(®s->bank[bank].fuse_regs[word << 2]); + + return finish_access(regs, __func__); +} + +static void set_timing(struct ocotp_regs *regs) +{ + u32 ipg_clk; + u32 relax, strobe_read, strobe_prog; + u32 timing; + + ipg_clk = mxc_get_clock(MXC_IPG_CLK); + + relax = DIV_ROUND_UP(ipg_clk * BV_TIMING_RELAX_NS, 1000000000) - 1; + strobe_read = DIV_ROUND_UP(ipg_clk * BV_TIMING_STROBE_READ_NS, + 1000000000) + 2 * (relax + 1) - 1; + strobe_prog = DIV_ROUND(ipg_clk * BV_TIMING_STROBE_PROG_US, 1000000) + + 2 * (relax + 1) - 1; + + timing = BF(strobe_read, TIMING_STROBE_READ) | + BF(relax, TIMING_RELAX) | + BF(strobe_prog, TIMING_STROBE_PROG); + + clrsetbits_le32(®s->timing, BM_TIMING_STROBE_READ | BM_TIMING_RELAX | + BM_TIMING_STROBE_PROG, timing); +} + +static void setup_direct_access(struct ocotp_regs *regs, u32 bank, u32 word, + int write) +{ + u32 wr_unlock = write ? BV_CTRL_WR_UNLOCK_KEY : 0; + u32 addr = bank << 3 | word; + + set_timing(regs); + clrsetbits_le32(®s->ctrl, BM_CTRL_WR_UNLOCK | BM_CTRL_ADDR, + BF(wr_unlock, CTRL_WR_UNLOCK) | + BF(addr, CTRL_ADDR)); +} + +int fuse_sense(u32 bank, u32 word, u32 *val) +{ + struct ocotp_regs *regs; + int ret; + + ret = prepare_read(®s, bank, word, val, __func__); + if (ret) + return ret; + + setup_direct_access(regs, bank, word, false); + writel(BM_READ_CTRL_READ_FUSE, ®s->read_ctrl); + wait_busy(regs, 1); + *val = readl(®s->read_fuse_data); + + return finish_access(regs, __func__); +} + +static int prepare_write(struct ocotp_regs **regs, u32 bank, u32 word, + const char *caller) +{ + return prepare_access(regs, bank, word, true, caller); +} + +int fuse_prog(u32 bank, u32 word, u32 val) +{ + struct ocotp_regs *regs; + int ret; + + ret = prepare_write(®s, bank, word, __func__); + if (ret) + return ret; + + setup_direct_access(regs, bank, word, true); + writel(val, ®s->data); + wait_busy(regs, BV_TIMING_STROBE_PROG_US); + udelay(WRITE_POSTAMBLE_US); + + return finish_access(regs, __func__); +} + +int fuse_override(u32 bank, u32 word, u32 val) +{ + struct ocotp_regs *regs; + int ret; + + ret = prepare_write(®s, bank, word, __func__); + if (ret) + return ret; + + writel(val, ®s->bank[bank].fuse_regs[word << 2]); + + return finish_access(regs, __func__); +} diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c index f65a7b005a..2590f1bcce 100644 --- a/drivers/mmc/mmc.c +++ b/drivers/mmc/mmc.c @@ -601,7 +601,7 @@ static int mmc_send_ext_csd(struct mmc *mmc, u8 *ext_csd) data.dest = (char *)ext_csd; data.blocks = 1; - data.blocksize = 512; + data.blocksize = MMC_MAX_BLOCK_LEN; data.flags = MMC_DATA_READ; err = mmc_send_cmd(mmc, &cmd, &data); @@ -634,7 +634,7 @@ static int mmc_switch(struct mmc *mmc, u8 set, u8 index, u8 value) static int mmc_change_freq(struct mmc *mmc) { - ALLOC_CACHE_ALIGN_BUFFER(u8, ext_csd, 512); + ALLOC_CACHE_ALIGN_BUFFER(u8, ext_csd, MMC_MAX_BLOCK_LEN); char cardtype; int err; @@ -899,8 +899,8 @@ static int mmc_startup(struct mmc *mmc) uint mult, freq; u64 cmult, csize, capacity; struct mmc_cmd cmd; - ALLOC_CACHE_ALIGN_BUFFER(u8, ext_csd, 512); - ALLOC_CACHE_ALIGN_BUFFER(u8, test_csd, 512); + ALLOC_CACHE_ALIGN_BUFFER(u8, ext_csd, MMC_MAX_BLOCK_LEN); + ALLOC_CACHE_ALIGN_BUFFER(u8, test_csd, MMC_MAX_BLOCK_LEN); int timeout = 1000; #ifdef CONFIG_MMC_SPI_CRC_ON @@ -1016,11 +1016,11 @@ static int mmc_startup(struct mmc *mmc) mmc->capacity = (csize + 1) << (cmult + 2); mmc->capacity *= mmc->read_bl_len; - if (mmc->read_bl_len > 512) - mmc->read_bl_len = 512; + if (mmc->read_bl_len > MMC_MAX_BLOCK_LEN) + mmc->read_bl_len = MMC_MAX_BLOCK_LEN; - if (mmc->write_bl_len > 512) - mmc->write_bl_len = 512; + if (mmc->write_bl_len > MMC_MAX_BLOCK_LEN) + mmc->write_bl_len = MMC_MAX_BLOCK_LEN; /* Select the card, and put it into Transfer Mode */ if (!mmc_host_is_spi(mmc)) { /* cmd not supported in spi */ @@ -1051,7 +1051,7 @@ static int mmc_startup(struct mmc *mmc) | ext_csd[EXT_CSD_SEC_CNT + 1] << 8 | ext_csd[EXT_CSD_SEC_CNT + 2] << 16 | ext_csd[EXT_CSD_SEC_CNT + 3] << 24; - capacity *= 512; + capacity *= MMC_MAX_BLOCK_LEN; if ((capacity >> 20) > 2 * 1024) mmc->capacity = capacity; } @@ -1079,10 +1079,11 @@ static int mmc_startup(struct mmc *mmc) * group size from ext_csd directly, or calculate * the group size from the csd value. */ - if (ext_csd[EXT_CSD_ERASE_GROUP_DEF]) + if (ext_csd[EXT_CSD_ERASE_GROUP_DEF]) { mmc->erase_grp_size = - ext_csd[EXT_CSD_HC_ERASE_GRP_SIZE] * 512 * 1024; - else { + ext_csd[EXT_CSD_HC_ERASE_GRP_SIZE] * + MMC_MAX_BLOCK_LEN * 1024; + } else { int erase_gsz, erase_gmul; erase_gsz = (mmc->csd[2] & 0x00007c00) >> 10; erase_gmul = (mmc->csd[2] & 0x000003e0) >> 5; @@ -1202,6 +1203,7 @@ static int mmc_startup(struct mmc *mmc) mmc->block_dev.lun = 0; mmc->block_dev.type = 0; mmc->block_dev.blksz = mmc->read_bl_len; + mmc->block_dev.log2blksz = LOG2(mmc->block_dev.blksz); mmc->block_dev.lba = lldiv(mmc->capacity, mmc->read_bl_len); sprintf(mmc->block_dev.vendor, "Man %06x Snr %04x%04x", mmc->cid[0] >> 24, (mmc->cid[2] & 0xffff), diff --git a/drivers/mmc/mxsmmc.c b/drivers/mmc/mxsmmc.c index a89660f130..fdaf9c763e 100644 --- a/drivers/mmc/mxsmmc.c +++ b/drivers/mmc/mxsmmc.c @@ -41,7 +41,7 @@ #include <asm/arch/clock.h> #include <asm/arch/imx-regs.h> #include <asm/arch/sys_proto.h> -#include <asm/arch/dma.h> +#include <asm/imx-common/dma.h> #include <bouncebuf.h> struct mxsmmc_priv { diff --git a/drivers/mmc/spl_mmc.c b/drivers/mmc/spl_mmc.c index 753c6a014a..7efdcb88b7 100644 --- a/drivers/mmc/spl_mmc.c +++ b/drivers/mmc/spl_mmc.c @@ -34,8 +34,9 @@ DECLARE_GLOBAL_DATA_PTR; static void mmc_load_image_raw(struct mmc *mmc) { - u32 image_size_sectors, err; - const struct image_header *header; + unsigned long err; + u32 image_size_sectors; + struct image_header *header; header = (struct image_header *)(CONFIG_SYS_TEXT_BASE - sizeof(struct image_header)); @@ -43,9 +44,9 @@ static void mmc_load_image_raw(struct mmc *mmc) /* read image header to find the image size & load address */ err = mmc->block_dev.block_read(0, CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR, 1, - (void *)header); + header); - if (err <= 0) + if (err == 0) goto end; spl_parse_image_header(header); @@ -60,8 +61,8 @@ static void mmc_load_image_raw(struct mmc *mmc) image_size_sectors, (void *)spl_image.load_addr); end: - if (err <= 0) { - printf("spl: mmc blk read err - %d\n", err); + if (err == 0) { + printf("spl: mmc blk read err - %lu\n", err); hang(); } } @@ -69,7 +70,7 @@ end: #ifdef CONFIG_SPL_FAT_SUPPORT static void mmc_load_image_fat(struct mmc *mmc) { - s32 err; + int err; struct image_header *header; header = (struct image_header *)(CONFIG_SYS_TEXT_BASE - @@ -83,7 +84,7 @@ static void mmc_load_image_fat(struct mmc *mmc) } err = file_fat_read(CONFIG_SPL_FAT_LOAD_PAYLOAD_NAME, - (u8 *)header, sizeof(struct image_header)); + header, sizeof(struct image_header)); if (err <= 0) goto end; diff --git a/drivers/mtd/nand/Makefile b/drivers/mtd/nand/Makefile index 35769c5ea3..8821704911 100644 --- a/drivers/mtd/nand/Makefile +++ b/drivers/mtd/nand/Makefile @@ -34,6 +34,7 @@ NORMAL_DRIVERS=y endif COBJS-$(CONFIG_SPL_NAND_AM33XX_BCH) += am335x_spl_bch.o +COBJS-$(CONFIG_SPL_NAND_DOCG4) += docg4_spl.o COBJS-$(CONFIG_SPL_NAND_SIMPLE) += nand_spl_simple.o COBJS-$(CONFIG_SPL_NAND_LOAD) += nand_spl_load.o COBJS-$(CONFIG_SPL_NAND_ECC) += nand_ecc.o @@ -77,6 +78,7 @@ COBJS-$(CONFIG_NAND_SPEAR) += spr_nand.o COBJS-$(CONFIG_TEGRA_NAND) += tegra_nand.o COBJS-$(CONFIG_NAND_OMAP_GPMC) += omap_gpmc.o COBJS-$(CONFIG_NAND_PLAT) += nand_plat.o +COBJS-$(CONFIG_NAND_DOCG4) += docg4.o else # minimal SPL drivers diff --git a/drivers/mtd/nand/docg4.c b/drivers/mtd/nand/docg4.c new file mode 100644 index 0000000000..7dd9953bed --- /dev/null +++ b/drivers/mtd/nand/docg4.c @@ -0,0 +1,1028 @@ +/* + * drivers/mtd/nand/docg4.c + * + * Copyright (C) 2013 Mike Dunn <mikedunn@newsguy.com> + * + * This file is released under the terms of GPL v2 and any later version. + * See the file COPYING in the root directory of the source tree for details. + * + * mtd nand driver for M-Systems DiskOnChip G4 + * + * Tested on the Palm Treo 680. The G4 is also present on Toshiba Portege, Asus + * P526, some HTC smartphones (Wizard, Prophet, ...), O2 XDA Zinc, maybe others. + * Should work on these as well. Let me know! + * + * TODO: + * + * Mechanism for management of password-protected areas + * + * Hamming ecc when reading oob only + * + * According to the M-Sys documentation, this device is also available in a + * "dual-die" configuration having a 256MB capacity, but no mechanism for + * detecting this variant is documented. Currently this driver assumes 128MB + * capacity. + * + * Support for multiple cascaded devices ("floors"). Not sure which gadgets + * contain multiple G4s in a cascaded configuration, if any. + * + */ + + +#include <common.h> +#include <asm/arch/hardware.h> +#include <asm/io.h> +#include <asm/bitops.h> +#include <asm/errno.h> +#include <malloc.h> +#include <nand.h> +#include <linux/bch.h> +#include <linux/bitrev.h> +#include <linux/mtd/docg4.h> + +/* + * The device has a nop register which M-Sys claims is for the purpose of + * inserting precise delays. But beware; at least some operations fail if the + * nop writes are replaced with a generic delay! + */ +static inline void write_nop(void __iomem *docptr) +{ + writew(0, docptr + DOC_NOP); +} + + +static int poll_status(void __iomem *docptr) +{ + /* + * Busy-wait for the FLASHREADY bit to be set in the FLASHCONTROL + * register. Operations known to take a long time (e.g., block erase) + * should sleep for a while before calling this. + */ + + uint8_t flash_status; + + /* hardware quirk requires reading twice initially */ + flash_status = readb(docptr + DOC_FLASHCONTROL); + + do { + flash_status = readb(docptr + DOC_FLASHCONTROL); + } while (!(flash_status & DOC_CTRL_FLASHREADY)); + + return 0; +} + +static void write_addr(void __iomem *docptr, uint32_t docg4_addr) +{ + /* write the four address bytes packed in docg4_addr to the device */ + + writeb(docg4_addr & 0xff, docptr + DOC_FLASHADDRESS); + docg4_addr >>= 8; + writeb(docg4_addr & 0xff, docptr + DOC_FLASHADDRESS); + docg4_addr >>= 8; + writeb(docg4_addr & 0xff, docptr + DOC_FLASHADDRESS); + docg4_addr >>= 8; + writeb(docg4_addr & 0xff, docptr + DOC_FLASHADDRESS); +} + +/* + * This is a module parameter in the linux kernel version of this driver. It is + * hard-coded to 'off' for u-boot. This driver uses oob to mark bad blocks. + * This can be problematic when dealing with data not intended for the mtd/nand + * subsystem. For example, on boards that boot from the docg4 and use the IPL + * to load an spl + u-boot image, the blocks containing the image will be + * reported as "bad" because the oob of the first page of each block contains a + * magic number that the IPL looks for, which causes the badblock scan to + * erroneously add them to the bad block table. To erase such a block, use + * u-boot's 'nand scrub'. scrub is safe for the docg4. The device does have a + * factory bad block table, but it is read-only, and is used in conjunction with + * oob bad block markers that are written by mtd/nand when a block is deemed to + * be bad. To read data from "bad" blocks, use 'read.raw'. Unfortunately, + * read.raw does not use ecc, which would still work fine on such misidentified + * bad blocks. TODO: u-boot nand utilities need the ability to ignore bad + * blocks. + */ +static const int ignore_badblocks; /* remains false */ + +struct docg4_priv { + int status; + struct { + unsigned int command; + int column; + int page; + } last_command; + uint8_t oob_buf[16]; + uint8_t ecc_buf[7]; + int oob_page; + struct bch_control *bch; +}; +/* + * Oob bytes 0 - 6 are available to the user. + * Byte 7 is hamming ecc for first 7 bytes. Bytes 8 - 14 are hw-generated ecc. + * Byte 15 (the last) is used by the driver as a "page written" flag. + */ +static struct nand_ecclayout docg4_oobinfo = { + .eccbytes = 9, + .eccpos = {7, 8, 9, 10, 11, 12, 13, 14, 15}, + .oobavail = 7, + .oobfree = { {0, 7} } +}; + +static void reset(void __iomem *docptr) +{ + /* full device reset */ + + writew(DOC_ASICMODE_RESET | DOC_ASICMODE_MDWREN, docptr + DOC_ASICMODE); + writew(~(DOC_ASICMODE_RESET | DOC_ASICMODE_MDWREN), + docptr + DOC_ASICMODECONFIRM); + write_nop(docptr); + + writew(DOC_ASICMODE_NORMAL | DOC_ASICMODE_MDWREN, + docptr + DOC_ASICMODE); + writew(~(DOC_ASICMODE_NORMAL | DOC_ASICMODE_MDWREN), + docptr + DOC_ASICMODECONFIRM); + + writew(DOC_ECCCONF1_ECC_ENABLE, docptr + DOC_ECCCONF1); + + poll_status(docptr); +} + +static void docg4_select_chip(struct mtd_info *mtd, int chip) +{ + /* + * Select among multiple cascaded chips ("floors"). Multiple floors are + * not yet supported, so the only valid non-negative value is 0. + */ + void __iomem *docptr = CONFIG_SYS_NAND_BASE; + + if (chip < 0) + return; /* deselected */ + + if (chip > 0) + printf("multiple floors currently unsupported\n"); + + writew(0, docptr + DOC_DEVICESELECT); +} + +static void read_hw_ecc(void __iomem *docptr, uint8_t *ecc_buf) +{ + /* read the 7 hw-generated ecc bytes */ + + int i; + for (i = 0; i < 7; i++) { /* hw quirk; read twice */ + ecc_buf[i] = readb(docptr + DOC_BCH_SYNDROM(i)); + ecc_buf[i] = readb(docptr + DOC_BCH_SYNDROM(i)); + } +} + +static int correct_data(struct mtd_info *mtd, uint8_t *buf, int page) +{ + /* + * Called after a page read when hardware reports bitflips. + * Up to four bitflips can be corrected. + */ + + struct nand_chip *nand = mtd->priv; + struct docg4_priv *doc = nand->priv; + void __iomem *docptr = CONFIG_SYS_NAND_BASE; + int i, numerrs; + unsigned int errpos[4]; + const uint8_t blank_read_hwecc[8] = { + 0xcf, 0x72, 0xfc, 0x1b, 0xa9, 0xc7, 0xb9, 0 }; + + read_hw_ecc(docptr, doc->ecc_buf); /* read 7 hw-generated ecc bytes */ + + /* check if read error is due to a blank page */ + if (!memcmp(doc->ecc_buf, blank_read_hwecc, 7)) + return 0; /* yes */ + + /* skip additional check of "written flag" if ignore_badblocks */ + if (!ignore_badblocks) { + /* + * If the hw ecc bytes are not those of a blank page, there's + * still a chance that the page is blank, but was read with + * errors. Check the "written flag" in last oob byte, which + * is set to zero when a page is written. If more than half + * the bits are set, assume a blank page. Unfortunately, the + * bit flips(s) are not reported in stats. + */ + + if (doc->oob_buf[15]) { + int bit, numsetbits = 0; + unsigned long written_flag = doc->oob_buf[15]; + + for (bit = 0; bit < 8; bit++) { + if (written_flag & 0x01) + numsetbits++; + written_flag >>= 1; + } + if (numsetbits > 4) { /* assume blank */ + printf("errors in blank page at offset %08x\n", + page * DOCG4_PAGE_SIZE); + return 0; + } + } + } + + /* + * The hardware ecc unit produces oob_ecc ^ calc_ecc. The kernel's bch + * algorithm is used to decode this. However the hw operates on page + * data in a bit order that is the reverse of that of the bch alg, + * requiring that the bits be reversed on the result. Thanks to Ivan + * Djelic for his analysis! + */ + for (i = 0; i < 7; i++) + doc->ecc_buf[i] = bitrev8(doc->ecc_buf[i]); + + numerrs = decode_bch(doc->bch, NULL, DOCG4_USERDATA_LEN, NULL, + doc->ecc_buf, NULL, errpos); + + if (numerrs == -EBADMSG) { + printf("uncorrectable errors at offset %08x\n", + page * DOCG4_PAGE_SIZE); + return -EBADMSG; + } + + BUG_ON(numerrs < 0); /* -EINVAL, or anything other than -EBADMSG */ + + /* undo last step in BCH alg (modulo mirroring not needed) */ + for (i = 0; i < numerrs; i++) + errpos[i] = (errpos[i] & ~7)|(7-(errpos[i] & 7)); + + /* fix the errors */ + for (i = 0; i < numerrs; i++) { + /* ignore if error within oob ecc bytes */ + if (errpos[i] > DOCG4_USERDATA_LEN * 8) + continue; + + /* if error within oob area preceeding ecc bytes... */ + if (errpos[i] > DOCG4_PAGE_SIZE * 8) + __change_bit(errpos[i] - DOCG4_PAGE_SIZE * 8, + (unsigned long *)doc->oob_buf); + + else /* error in page data */ + __change_bit(errpos[i], (unsigned long *)buf); + } + + printf("%d error(s) corrected at offset %08x\n", + numerrs, page * DOCG4_PAGE_SIZE); + + return numerrs; +} + +static int read_progstatus(struct docg4_priv *doc, void __iomem *docptr) +{ + /* + * This apparently checks the status of programming. Done after an + * erasure, and after page data is written. On error, the status is + * saved, to be later retrieved by the nand infrastructure code. + */ + + /* status is read from the I/O reg */ + uint16_t status1 = readw(docptr + DOC_IOSPACE_DATA); + uint16_t status2 = readw(docptr + DOC_IOSPACE_DATA); + uint16_t status3 = readw(docptr + DOCG4_MYSTERY_REG); + + MTDDEBUG(MTD_DEBUG_LEVEL3, "docg4: %s: %02x %02x %02x\n", + __func__, status1, status2, status3); + + if (status1 != DOCG4_PROGSTATUS_GOOD || + status2 != DOCG4_PROGSTATUS_GOOD_2 || + status3 != DOCG4_PROGSTATUS_GOOD_2) { + doc->status = NAND_STATUS_FAIL; + printf("read_progstatus failed: %02x, %02x, %02x\n", + status1, status2, status3); + return -EIO; + } + return 0; +} + +static int pageprog(struct mtd_info *mtd) +{ + /* + * Final step in writing a page. Writes the contents of its + * internal buffer out to the flash array, or some such. + */ + + struct nand_chip *nand = mtd->priv; + struct docg4_priv *doc = nand->priv; + void __iomem *docptr = CONFIG_SYS_NAND_BASE; + int retval = 0; + + MTDDEBUG(MTD_DEBUG_LEVEL3, "docg4: %s\n", __func__); + + writew(DOCG4_SEQ_PAGEPROG, docptr + DOC_FLASHSEQUENCE); + writew(DOC_CMD_PROG_CYCLE2, docptr + DOC_FLASHCOMMAND); + write_nop(docptr); + write_nop(docptr); + + /* Just busy-wait; usleep_range() slows things down noticeably. */ + poll_status(docptr); + + writew(DOCG4_SEQ_FLUSH, docptr + DOC_FLASHSEQUENCE); + writew(DOCG4_CMD_FLUSH, docptr + DOC_FLASHCOMMAND); + writew(DOC_ECCCONF0_READ_MODE | 4, docptr + DOC_ECCCONF0); + write_nop(docptr); + write_nop(docptr); + write_nop(docptr); + write_nop(docptr); + write_nop(docptr); + + retval = read_progstatus(doc, docptr); + writew(0, docptr + DOC_DATAEND); + write_nop(docptr); + poll_status(docptr); + write_nop(docptr); + + return retval; +} + +static void sequence_reset(void __iomem *docptr) +{ + /* common starting sequence for all operations */ + + writew(DOC_CTRL_UNKNOWN | DOC_CTRL_CE, docptr + DOC_FLASHCONTROL); + writew(DOC_SEQ_RESET, docptr + DOC_FLASHSEQUENCE); + writew(DOC_CMD_RESET, docptr + DOC_FLASHCOMMAND); + write_nop(docptr); + write_nop(docptr); + poll_status(docptr); + write_nop(docptr); +} + +static void read_page_prologue(void __iomem *docptr, uint32_t docg4_addr) +{ + /* first step in reading a page */ + + sequence_reset(docptr); + + writew(DOCG4_SEQ_PAGE_READ, docptr + DOC_FLASHSEQUENCE); + writew(DOCG4_CMD_PAGE_READ, docptr + DOC_FLASHCOMMAND); + write_nop(docptr); + + write_addr(docptr, docg4_addr); + + write_nop(docptr); + writew(DOCG4_CMD_READ2, docptr + DOC_FLASHCOMMAND); + write_nop(docptr); + write_nop(docptr); + + poll_status(docptr); +} + +static void write_page_prologue(void __iomem *docptr, uint32_t docg4_addr) +{ + /* first step in writing a page */ + + sequence_reset(docptr); + writew(DOCG4_SEQ_PAGEWRITE, docptr + DOC_FLASHSEQUENCE); + writew(DOCG4_CMD_PAGEWRITE, docptr + DOC_FLASHCOMMAND); + write_nop(docptr); + write_addr(docptr, docg4_addr); + write_nop(docptr); + write_nop(docptr); + poll_status(docptr); +} + +static uint32_t mtd_to_docg4_address(int page, int column) +{ + /* + * Convert mtd address to format used by the device, 32 bit packed. + * + * Some notes on G4 addressing... The M-Sys documentation on this device + * claims that pages are 2K in length, and indeed, the format of the + * address used by the device reflects that. But within each page are + * four 512 byte "sub-pages", each with its own oob data that is + * read/written immediately after the 512 bytes of page data. This oob + * data contains the ecc bytes for the preceeding 512 bytes. + * + * Rather than tell the mtd nand infrastructure that page size is 2k, + * with four sub-pages each, we engage in a little subterfuge and tell + * the infrastructure code that pages are 512 bytes in size. This is + * done because during the course of reverse-engineering the device, I + * never observed an instance where an entire 2K "page" was read or + * written as a unit. Each "sub-page" is always addressed individually, + * its data read/written, and ecc handled before the next "sub-page" is + * addressed. + * + * This requires us to convert addresses passed by the mtd nand + * infrastructure code to those used by the device. + * + * The address that is written to the device consists of four bytes: the + * first two are the 2k page number, and the second is the index into + * the page. The index is in terms of 16-bit half-words and includes + * the preceeding oob data, so e.g., the index into the second + * "sub-page" is 0x108, and the full device address of the start of mtd + * page 0x201 is 0x00800108. + */ + int g4_page = page / 4; /* device's 2K page */ + int g4_index = (page % 4) * 0x108 + column/2; /* offset into page */ + return (g4_page << 16) | g4_index; /* pack */ +} + +static void docg4_command(struct mtd_info *mtd, unsigned command, int column, + int page_addr) +{ + /* handle standard nand commands */ + + struct nand_chip *nand = mtd->priv; + struct docg4_priv *doc = nand->priv; + uint32_t g4_addr = mtd_to_docg4_address(page_addr, column); + + MTDDEBUG(MTD_DEBUG_LEVEL3, "%s %x, page_addr=%x, column=%x\n", + __func__, command, page_addr, column); + + /* + * Save the command and its arguments. This enables emulation of + * standard flash devices, and also some optimizations. + */ + doc->last_command.command = command; + doc->last_command.column = column; + doc->last_command.page = page_addr; + + switch (command) { + case NAND_CMD_RESET: + reset(CONFIG_SYS_NAND_BASE); + break; + + case NAND_CMD_READ0: + read_page_prologue(CONFIG_SYS_NAND_BASE, g4_addr); + break; + + case NAND_CMD_STATUS: + /* next call to read_byte() will expect a status */ + break; + + case NAND_CMD_SEQIN: + write_page_prologue(CONFIG_SYS_NAND_BASE, g4_addr); + + /* hack for deferred write of oob bytes */ + if (doc->oob_page == page_addr) + memcpy(nand->oob_poi, doc->oob_buf, 16); + break; + + case NAND_CMD_PAGEPROG: + pageprog(mtd); + break; + + /* we don't expect these, based on review of nand_base.c */ + case NAND_CMD_READOOB: + case NAND_CMD_READID: + case NAND_CMD_ERASE1: + case NAND_CMD_ERASE2: + printf("docg4_command: unexpected nand command 0x%x\n", + command); + break; + } +} + +static void docg4_read_buf(struct mtd_info *mtd, uint8_t *buf, int len) +{ + int i; + struct nand_chip *nand = mtd->priv; + uint16_t *p = (uint16_t *)buf; + len >>= 1; + + for (i = 0; i < len; i++) + p[i] = readw(nand->IO_ADDR_R); +} + +static int docg4_read_oob(struct mtd_info *mtd, struct nand_chip *nand, + int page, int sndcmd) +{ + struct docg4_priv *doc = nand->priv; + void __iomem *docptr = CONFIG_SYS_NAND_BASE; + uint16_t status; + + MTDDEBUG(MTD_DEBUG_LEVEL3, "%s: page %x\n", __func__, page); + + /* + * Oob bytes are read as part of a normal page read. If the previous + * nand command was a read of the page whose oob is now being read, just + * copy the oob bytes that we saved in a local buffer and avoid a + * separate oob read. + */ + if (doc->last_command.command == NAND_CMD_READ0 && + doc->last_command.page == page) { + memcpy(nand->oob_poi, doc->oob_buf, 16); + return 0; + } + + /* + * Separate read of oob data only. + */ + docg4_command(mtd, NAND_CMD_READ0, nand->ecc.size, page); + + writew(DOC_ECCCONF0_READ_MODE | DOCG4_OOB_SIZE, docptr + DOC_ECCCONF0); + write_nop(docptr); + write_nop(docptr); + write_nop(docptr); + write_nop(docptr); + write_nop(docptr); + + /* the 1st byte from the I/O reg is a status; the rest is oob data */ + status = readw(docptr + DOC_IOSPACE_DATA); + if (status & DOCG4_READ_ERROR) { + printf("docg4_read_oob failed: status = 0x%02x\n", status); + return -EIO; + } + + MTDDEBUG(MTD_DEBUG_LEVEL3, "%s: status = 0x%x\n", __func__, status); + + docg4_read_buf(mtd, nand->oob_poi, 16); + + write_nop(docptr); + write_nop(docptr); + write_nop(docptr); + writew(0, docptr + DOC_DATAEND); + write_nop(docptr); + + return 0; +} + +static int docg4_write_oob(struct mtd_info *mtd, struct nand_chip *nand, + int page) +{ + /* + * Writing oob-only is not really supported, because MLC nand must write + * oob bytes at the same time as page data. Nonetheless, we save the + * oob buffer contents here, and then write it along with the page data + * if the same page is subsequently written. This allows user space + * utilities that write the oob data prior to the page data to work + * (e.g., nandwrite). The disdvantage is that, if the intention was to + * write oob only, the operation is quietly ignored. Also, oob can get + * corrupted if two concurrent processes are running nandwrite. + */ + + /* note that bytes 7..14 are hw generated hamming/ecc and overwritten */ + struct docg4_priv *doc = nand->priv; + doc->oob_page = page; + memcpy(doc->oob_buf, nand->oob_poi, 16); + return 0; +} + +static int docg4_block_neverbad(struct mtd_info *mtd, loff_t ofs, int getchip) +{ + /* only called when module_param ignore_badblocks is set */ + return 0; +} + +static void docg4_write_buf16(struct mtd_info *mtd, const uint8_t *buf, int len) +{ + int i; + struct nand_chip *nand = mtd->priv; + uint16_t *p = (uint16_t *)buf; + len >>= 1; + + for (i = 0; i < len; i++) + writew(p[i], nand->IO_ADDR_W); +} + +static void write_page(struct mtd_info *mtd, struct nand_chip *nand, + const uint8_t *buf, int use_ecc) +{ + void __iomem *docptr = CONFIG_SYS_NAND_BASE; + uint8_t ecc_buf[8]; + + writew(DOC_ECCCONF0_ECC_ENABLE | + DOC_ECCCONF0_UNKNOWN | + DOCG4_BCH_SIZE, + docptr + DOC_ECCCONF0); + write_nop(docptr); + + /* write the page data */ + docg4_write_buf16(mtd, buf, DOCG4_PAGE_SIZE); + + /* oob bytes 0 through 5 are written to I/O reg */ + docg4_write_buf16(mtd, nand->oob_poi, 6); + + /* oob byte 6 written to a separate reg */ + writew(nand->oob_poi[6], docptr + DOCG4_OOB_6_7); + + write_nop(docptr); + write_nop(docptr); + + /* write hw-generated ecc bytes to oob */ + if (likely(use_ecc)) { + /* oob byte 7 is hamming code */ + uint8_t hamming = readb(docptr + DOC_HAMMINGPARITY); + hamming = readb(docptr + DOC_HAMMINGPARITY); /* 2nd read */ + writew(hamming, docptr + DOCG4_OOB_6_7); + write_nop(docptr); + + /* read the 7 bch bytes from ecc regs */ + read_hw_ecc(docptr, ecc_buf); + ecc_buf[7] = 0; /* clear the "page written" flag */ + } + + /* write user-supplied bytes to oob */ + else { + writew(nand->oob_poi[7], docptr + DOCG4_OOB_6_7); + write_nop(docptr); + memcpy(ecc_buf, &nand->oob_poi[8], 8); + } + + docg4_write_buf16(mtd, ecc_buf, 8); + write_nop(docptr); + write_nop(docptr); + writew(0, docptr + DOC_DATAEND); + write_nop(docptr); +} + +static void docg4_write_page_raw(struct mtd_info *mtd, struct nand_chip *nand, + const uint8_t *buf) +{ + return write_page(mtd, nand, buf, 0); +} + +static void docg4_write_page(struct mtd_info *mtd, struct nand_chip *nand, + const uint8_t *buf) +{ + return write_page(mtd, nand, buf, 1); +} + +static int read_page(struct mtd_info *mtd, struct nand_chip *nand, + uint8_t *buf, int page, int use_ecc) +{ + struct docg4_priv *doc = nand->priv; + void __iomem *docptr = CONFIG_SYS_NAND_BASE; + uint16_t status, edc_err, *buf16; + + writew(DOC_ECCCONF0_READ_MODE | + DOC_ECCCONF0_ECC_ENABLE | + DOC_ECCCONF0_UNKNOWN | + DOCG4_BCH_SIZE, + docptr + DOC_ECCCONF0); + write_nop(docptr); + write_nop(docptr); + write_nop(docptr); + write_nop(docptr); + write_nop(docptr); + + /* the 1st byte from the I/O reg is a status; the rest is page data */ + status = readw(docptr + DOC_IOSPACE_DATA); + if (status & DOCG4_READ_ERROR) { + printf("docg4_read_page: bad status: 0x%02x\n", status); + writew(0, docptr + DOC_DATAEND); + return -EIO; + } + + docg4_read_buf(mtd, buf, DOCG4_PAGE_SIZE); /* read the page data */ + + /* first 14 oob bytes read from I/O reg */ + docg4_read_buf(mtd, nand->oob_poi, 14); + + /* last 2 read from another reg */ + buf16 = (uint16_t *)(nand->oob_poi + 14); + *buf16 = readw(docptr + DOCG4_MYSTERY_REG); + + /* + * Diskonchips read oob immediately after a page read. Mtd + * infrastructure issues a separate command for reading oob after the + * page is read. So we save the oob bytes in a local buffer and just + * copy it if the next command reads oob from the same page. + */ + memcpy(doc->oob_buf, nand->oob_poi, 16); + + write_nop(docptr); + + if (likely(use_ecc)) { + /* read the register that tells us if bitflip(s) detected */ + edc_err = readw(docptr + DOC_ECCCONF1); + edc_err = readw(docptr + DOC_ECCCONF1); + + /* If bitflips are reported, attempt to correct with ecc */ + if (edc_err & DOC_ECCCONF1_BCH_SYNDROM_ERR) { + int bits_corrected = correct_data(mtd, buf, page); + if (bits_corrected == -EBADMSG) + mtd->ecc_stats.failed++; + else + mtd->ecc_stats.corrected += bits_corrected; + } + } + + writew(0, docptr + DOC_DATAEND); + return 0; +} + + +static int docg4_read_page_raw(struct mtd_info *mtd, struct nand_chip *nand, + uint8_t *buf, int page) +{ + return read_page(mtd, nand, buf, page, 0); +} + +static int docg4_read_page(struct mtd_info *mtd, struct nand_chip *nand, + uint8_t *buf, int page) +{ + return read_page(mtd, nand, buf, page, 1); +} + +static void docg4_erase_block(struct mtd_info *mtd, int page) +{ + struct nand_chip *nand = mtd->priv; + struct docg4_priv *doc = nand->priv; + void __iomem *docptr = CONFIG_SYS_NAND_BASE; + uint16_t g4_page; + + MTDDEBUG(MTD_DEBUG_LEVEL3, "%s: page %04x\n", __func__, page); + + sequence_reset(docptr); + + writew(DOCG4_SEQ_BLOCKERASE, docptr + DOC_FLASHSEQUENCE); + writew(DOC_CMD_PROG_BLOCK_ADDR, docptr + DOC_FLASHCOMMAND); + write_nop(docptr); + + /* only 2 bytes of address are written to specify erase block */ + g4_page = (uint16_t)(page / 4); /* to g4's 2k page addressing */ + writeb(g4_page & 0xff, docptr + DOC_FLASHADDRESS); + g4_page >>= 8; + writeb(g4_page & 0xff, docptr + DOC_FLASHADDRESS); + write_nop(docptr); + + /* start the erasure */ + writew(DOC_CMD_ERASECYCLE2, docptr + DOC_FLASHCOMMAND); + write_nop(docptr); + write_nop(docptr); + + poll_status(docptr); + writew(DOCG4_SEQ_FLUSH, docptr + DOC_FLASHSEQUENCE); + writew(DOCG4_CMD_FLUSH, docptr + DOC_FLASHCOMMAND); + writew(DOC_ECCCONF0_READ_MODE | 4, docptr + DOC_ECCCONF0); + write_nop(docptr); + write_nop(docptr); + write_nop(docptr); + write_nop(docptr); + write_nop(docptr); + + read_progstatus(doc, docptr); + + writew(0, docptr + DOC_DATAEND); + write_nop(docptr); + poll_status(docptr); + write_nop(docptr); +} + +static int read_factory_bbt(struct mtd_info *mtd) +{ + /* + * The device contains a read-only factory bad block table. Read it and + * update the memory-based bbt accordingly. + */ + + struct nand_chip *nand = mtd->priv; + uint32_t g4_addr = mtd_to_docg4_address(DOCG4_FACTORY_BBT_PAGE, 0); + uint8_t *buf; + int i, block, status; + + buf = kzalloc(DOCG4_PAGE_SIZE, GFP_KERNEL); + if (buf == NULL) + return -ENOMEM; + + read_page_prologue(CONFIG_SYS_NAND_BASE, g4_addr); + status = docg4_read_page(mtd, nand, buf, DOCG4_FACTORY_BBT_PAGE); + if (status) + goto exit; + + /* + * If no memory-based bbt was created, exit. This will happen if module + * parameter ignore_badblocks is set. Then why even call this function? + * For an unknown reason, block erase always fails if it's the first + * operation after device power-up. The above read ensures it never is. + * Ugly, I know. + */ + if (nand->bbt == NULL) /* no memory-based bbt */ + goto exit; + + /* + * Parse factory bbt and update memory-based bbt. Factory bbt format is + * simple: one bit per block, block numbers increase left to right (msb + * to lsb). Bit clear means bad block. + */ + for (i = block = 0; block < DOCG4_NUMBLOCKS; block += 8, i++) { + int bitnum; + uint8_t mask; + for (bitnum = 0, mask = 0x80; + bitnum < 8; bitnum++, mask >>= 1) { + if (!(buf[i] & mask)) { + int badblock = block + bitnum; + nand->bbt[badblock / 4] |= + 0x03 << ((badblock % 4) * 2); + mtd->ecc_stats.badblocks++; + printf("factory-marked bad block: %d\n", + badblock); + } + } + } + exit: + kfree(buf); + return status; +} + +static int docg4_block_markbad(struct mtd_info *mtd, loff_t ofs) +{ + /* + * Mark a block as bad. Bad blocks are marked in the oob area of the + * first page of the block. The default scan_bbt() in the nand + * infrastructure code works fine for building the memory-based bbt + * during initialization, as does the nand infrastructure function that + * checks if a block is bad by reading the bbt. This function replaces + * the nand default because writes to oob-only are not supported. + */ + + int ret, i; + uint8_t *buf; + struct nand_chip *nand = mtd->priv; + struct nand_bbt_descr *bbtd = nand->badblock_pattern; + int block = (int)(ofs >> nand->bbt_erase_shift); + int page = (int)(ofs >> nand->page_shift); + uint32_t g4_addr = mtd_to_docg4_address(page, 0); + + MTDDEBUG(MTD_DEBUG_LEVEL3, "%s: %08llx\n", __func__, ofs); + + if (unlikely(ofs & (DOCG4_BLOCK_SIZE - 1))) + printf("%s: ofs %llx not start of block!\n", + __func__, ofs); + + /* allocate blank buffer for page data */ + buf = kzalloc(DOCG4_PAGE_SIZE, GFP_KERNEL); + if (buf == NULL) + return -ENOMEM; + + /* update bbt in memory */ + nand->bbt[block / 4] |= 0x01 << ((block & 0x03) * 2); + + /* write bit-wise negation of pattern to oob buffer */ + memset(nand->oob_poi, 0xff, mtd->oobsize); + for (i = 0; i < bbtd->len; i++) + nand->oob_poi[bbtd->offs + i] = ~bbtd->pattern[i]; + + /* write first page of block */ + write_page_prologue(CONFIG_SYS_NAND_BASE, g4_addr); + docg4_write_page(mtd, nand, buf); + ret = pageprog(mtd); + if (!ret) + mtd->ecc_stats.badblocks++; + + kfree(buf); + + return ret; +} + +static uint8_t docg4_read_byte(struct mtd_info *mtd) +{ + struct nand_chip *nand = mtd->priv; + struct docg4_priv *doc = nand->priv; + + MTDDEBUG(MTD_DEBUG_LEVEL3, "%s\n", __func__); + + if (doc->last_command.command == NAND_CMD_STATUS) { + int status; + + /* + * Previous nand command was status request, so nand + * infrastructure code expects to read the status here. If an + * error occurred in a previous operation, report it. + */ + doc->last_command.command = 0; + + if (doc->status) { + status = doc->status; + doc->status = 0; + } + + /* why is NAND_STATUS_WP inverse logic?? */ + else + status = NAND_STATUS_WP | NAND_STATUS_READY; + + return status; + } + + printf("unexpectd call to read_byte()\n"); + + return 0; +} + +static int docg4_wait(struct mtd_info *mtd, struct nand_chip *nand) +{ + struct docg4_priv *doc = nand->priv; + int status = NAND_STATUS_WP; /* inverse logic?? */ + MTDDEBUG(MTD_DEBUG_LEVEL3, "%s...\n", __func__); + + /* report any previously unreported error */ + if (doc->status) { + status |= doc->status; + doc->status = 0; + return status; + } + + status |= poll_status(CONFIG_SYS_NAND_BASE); + return status; +} + +int docg4_nand_init(struct mtd_info *mtd, struct nand_chip *nand, int devnum) +{ + uint16_t id1, id2; + struct docg4_priv *docg4; + int retval; + + docg4 = kzalloc(sizeof(*docg4), GFP_KERNEL); + if (!docg4) + return -1; + + mtd->priv = nand; + nand->priv = docg4; + + /* These must be initialized here because the docg4 is non-standard + * and doesn't produce an id that the nand code can use to look up + * these values (nand_scan_ident() not called). + */ + mtd->size = DOCG4_CHIP_SIZE; + mtd->name = "Msys_Diskonchip_G4"; + mtd->writesize = DOCG4_PAGE_SIZE; + mtd->erasesize = DOCG4_BLOCK_SIZE; + mtd->oobsize = DOCG4_OOB_SIZE; + + nand->IO_ADDR_R = + (void __iomem *)CONFIG_SYS_NAND_BASE + DOC_IOSPACE_DATA; + nand->IO_ADDR_W = nand->IO_ADDR_R; + nand->chipsize = DOCG4_CHIP_SIZE; + nand->chip_shift = DOCG4_CHIP_SHIFT; + nand->bbt_erase_shift = DOCG4_ERASE_SHIFT; + nand->phys_erase_shift = DOCG4_ERASE_SHIFT; + nand->chip_delay = 20; + nand->page_shift = DOCG4_PAGE_SHIFT; + nand->pagemask = 0x3ffff; + nand->badblockpos = NAND_LARGE_BADBLOCK_POS; + nand->badblockbits = 8; + nand->ecc.layout = &docg4_oobinfo; + nand->ecc.mode = NAND_ECC_HW_SYNDROME; + nand->ecc.size = DOCG4_PAGE_SIZE; + nand->ecc.prepad = 8; + nand->ecc.bytes = 8; + nand->options = + NAND_BUSWIDTH_16 | NAND_NO_SUBPAGE_WRITE | NAND_NO_AUTOINCR; + nand->controller = &nand->hwcontrol; + + /* methods */ + nand->cmdfunc = docg4_command; + nand->waitfunc = docg4_wait; + nand->select_chip = docg4_select_chip; + nand->read_byte = docg4_read_byte; + nand->block_markbad = docg4_block_markbad; + nand->read_buf = docg4_read_buf; + nand->write_buf = docg4_write_buf16; + nand->scan_bbt = nand_default_bbt; + nand->erase_cmd = docg4_erase_block; + nand->ecc.read_page = docg4_read_page; + nand->ecc.write_page = docg4_write_page; + nand->ecc.read_page_raw = docg4_read_page_raw; + nand->ecc.write_page_raw = docg4_write_page_raw; + nand->ecc.read_oob = docg4_read_oob; + nand->ecc.write_oob = docg4_write_oob; + + /* + * The way the nand infrastructure code is written, a memory-based bbt + * is not created if NAND_SKIP_BBTSCAN is set. With no memory bbt, + * nand->block_bad() is used. So when ignoring bad blocks, we skip the + * scan and define a dummy block_bad() which always returns 0. + */ + if (ignore_badblocks) { + nand->options |= NAND_SKIP_BBTSCAN; + nand->block_bad = docg4_block_neverbad; + } + + reset(CONFIG_SYS_NAND_BASE); + + /* check for presence of g4 chip by reading id registers */ + id1 = readw(CONFIG_SYS_NAND_BASE + DOC_CHIPID); + id1 = readw(CONFIG_SYS_NAND_BASE + DOCG4_MYSTERY_REG); + id2 = readw(CONFIG_SYS_NAND_BASE + DOC_CHIPID_INV); + id2 = readw(CONFIG_SYS_NAND_BASE + DOCG4_MYSTERY_REG); + if (id1 != DOCG4_IDREG1_VALUE || id2 != DOCG4_IDREG2_VALUE) + return -1; + + /* initialize bch algorithm */ + docg4->bch = init_bch(DOCG4_M, DOCG4_T, DOCG4_PRIMITIVE_POLY); + if (docg4->bch == NULL) + return -1; + + retval = nand_scan_tail(mtd); + if (retval) + return -1; + + /* + * Scan for bad blocks and create bbt here, then add the factory-marked + * bad blocks to the bbt. + */ + nand->scan_bbt(mtd); + nand->options |= NAND_BBT_SCANNED; + retval = read_factory_bbt(mtd); + if (retval) + return -1; + + retval = nand_register(devnum); + if (retval) + return -1; + + return 0; +} diff --git a/drivers/mtd/nand/docg4_spl.c b/drivers/mtd/nand/docg4_spl.c new file mode 100644 index 0000000000..95e856c213 --- /dev/null +++ b/drivers/mtd/nand/docg4_spl.c @@ -0,0 +1,222 @@ +/* + * SPL driver for Diskonchip G4 nand flash + * + * Copyright (C) 2013 Mike Dunn <mikedunn@newsguy.com> + * + * This file is released under the terms of GPL v2 and any later version. + * See the file COPYING in the root directory of the source tree for details. + * + * + * This driver basically mimics the load functionality of a typical IPL (initial + * program loader) resident in the 2k NOR-like region of the docg4 that is + * mapped to the reset vector. It allows the u-boot SPL to continue loading if + * the IPL loads a fixed number of flash blocks that is insufficient to contain + * the entire u-boot image. In this case, a concatenated spl + u-boot image is + * written at the flash offset from which the IPL loads an image, and when the + * IPL jumps to the SPL, the SPL resumes loading where the IPL left off. See + * the palmtreo680 for an example. + * + * This driver assumes that the data was written to the flash using the device's + * "reliable" mode, and also assumes that each 512 byte page is stored + * redundantly in the subsequent page. This storage format is likely to be used + * by all boards that boot from the docg4. The format compensates for the lack + * of ecc in the IPL. + * + * Reliable mode reduces the capacity of a block by half, and the redundant + * pages reduce it by half again. As a result, the normal 256k capacity of a + * block is reduced to 64k for the purposes of the IPL/SPL. + */ + +#include <asm/io.h> +#include <linux/mtd/docg4.h> + +/* forward declarations */ +static inline void write_nop(void __iomem *docptr); +static int poll_status(void __iomem *docptr); +static void write_addr(void __iomem *docptr, uint32_t docg4_addr); +static void address_sequence(unsigned int g4_page, unsigned int g4_index, + void __iomem *docptr); +static int docg4_load_block_reliable(uint32_t flash_offset, void *dest_addr); + +int nand_spl_load_image(uint32_t offs, unsigned int size, void *dst) +{ + void *load_addr = dst; + uint32_t flash_offset = offs; + const unsigned int block_count = + (size + DOCG4_BLOCK_CAPACITY_SPL - 1) + / DOCG4_BLOCK_CAPACITY_SPL; + int i; + + for (i = 0; i < block_count; i++) { + int ret = docg4_load_block_reliable(flash_offset, load_addr); + if (ret) + return ret; + load_addr += DOCG4_BLOCK_CAPACITY_SPL; + flash_offset += DOCG4_BLOCK_SIZE; + } + return 0; +} + +static inline void write_nop(void __iomem *docptr) +{ + writew(0, docptr + DOC_NOP); +} + +static int poll_status(void __iomem *docptr) +{ + /* + * Busy-wait for the FLASHREADY bit to be set in the FLASHCONTROL + * register. Operations known to take a long time (e.g., block erase) + * should sleep for a while before calling this. + */ + + uint8_t flash_status; + + /* hardware quirk requires reading twice initially */ + flash_status = readb(docptr + DOC_FLASHCONTROL); + + do { + flash_status = readb(docptr + DOC_FLASHCONTROL); + } while (!(flash_status & DOC_CTRL_FLASHREADY)); + + return 0; +} + +static void write_addr(void __iomem *docptr, uint32_t docg4_addr) +{ + /* write the four address bytes packed in docg4_addr to the device */ + + writeb(docg4_addr & 0xff, docptr + DOC_FLASHADDRESS); + docg4_addr >>= 8; + writeb(docg4_addr & 0xff, docptr + DOC_FLASHADDRESS); + docg4_addr >>= 8; + writeb(docg4_addr & 0xff, docptr + DOC_FLASHADDRESS); + docg4_addr >>= 8; + writeb(docg4_addr & 0xff, docptr + DOC_FLASHADDRESS); +} + +static void address_sequence(unsigned int g4_page, unsigned int g4_index, + void __iomem *docptr) +{ + writew(DOCG4_SEQ_PAGE_READ, docptr + DOC_FLASHSEQUENCE); + writew(DOCG4_CMD_PAGE_READ, docptr + DOC_FLASHCOMMAND); + write_nop(docptr); + write_addr(docptr, ((uint32_t)g4_page << 16) | g4_index); + write_nop(docptr); +} + +static int docg4_load_block_reliable(uint32_t flash_offset, void *dest_addr) +{ + void __iomem *docptr = (void *)CONFIG_SYS_NAND_BASE; + unsigned int g4_page = flash_offset >> 11; /* 2k page */ + const unsigned int last_g4_page = g4_page + 0x80; /* last in block */ + int g4_index = 0; + uint16_t flash_status; + uint16_t *buf; + uint16_t discard, magic_high, magic_low; + + /* flash_offset must be aligned to the start of a block */ + if (flash_offset & 0x3ffff) + return -1; + + writew(DOC_SEQ_RESET, docptr + DOC_FLASHSEQUENCE); + writew(DOC_CMD_RESET, docptr + DOC_FLASHCOMMAND); + write_nop(docptr); + write_nop(docptr); + poll_status(docptr); + write_nop(docptr); + writew(0x45, docptr + DOC_FLASHSEQUENCE); + writew(0xa3, docptr + DOC_FLASHCOMMAND); + write_nop(docptr); + writew(0x22, docptr + DOC_FLASHCOMMAND); + write_nop(docptr); + + /* read 1st 4 oob bytes of first subpage of block */ + address_sequence(g4_page, 0x0100, docptr); /* index at oob */ + write_nop(docptr); + flash_status = readw(docptr + DOC_FLASHCONTROL); + flash_status = readw(docptr + DOC_FLASHCONTROL); + if (flash_status & 0x06) /* sequence or protection errors */ + return -1; + writew(DOCG4_CMD_READ2, docptr + DOC_FLASHCOMMAND); + write_nop(docptr); + write_nop(docptr); + poll_status(docptr); + writew(DOC_ECCCONF0_READ_MODE | 4, docptr + DOC_ECCCONF0); + write_nop(docptr); + write_nop(docptr); + write_nop(docptr); + write_nop(docptr); + write_nop(docptr); + + /* + * Here we read the first four oob bytes of the first page of the block. + * The IPL on the palmtreo680 requires that this contain a 32 bit magic + * number, or the load aborts. We'll ignore it. + */ + discard = readw(docptr + 0x103c); /* hw quirk; 1st read discarded */ + magic_low = readw(docptr + 0x103c); + magic_high = readw(docptr + DOCG4_MYSTERY_REG); + writew(0, docptr + DOC_DATAEND); + write_nop(docptr); + write_nop(docptr); + + /* load contents of block to memory */ + buf = (uint16_t *)dest_addr; + do { + int i; + + address_sequence(g4_page, g4_index, docptr); + writew(DOCG4_CMD_READ2, + docptr + DOC_FLASHCOMMAND); + write_nop(docptr); + write_nop(docptr); + poll_status(docptr); + writew(DOC_ECCCONF0_READ_MODE | + DOC_ECCCONF0_ECC_ENABLE | + DOCG4_BCH_SIZE, + docptr + DOC_ECCCONF0); + write_nop(docptr); + write_nop(docptr); + write_nop(docptr); + write_nop(docptr); + write_nop(docptr); + + /* read the 512 bytes of page data, 2 bytes at a time */ + discard = readw(docptr + 0x103c); + for (i = 0; i < 256; i++) + *buf++ = readw(docptr + 0x103c); + + /* read oob, but discard it */ + for (i = 0; i < 7; i++) + discard = readw(docptr + 0x103c); + discard = readw(docptr + DOCG4_OOB_6_7); + discard = readw(docptr + DOCG4_OOB_6_7); + + writew(0, docptr + DOC_DATAEND); + write_nop(docptr); + write_nop(docptr); + + if (!(g4_index & 0x100)) { + /* not redundant subpage read; check for ecc error */ + write_nop(docptr); + flash_status = readw(docptr + DOC_ECCCONF1); + flash_status = readw(docptr + DOC_ECCCONF1); + if (flash_status & 0x80) { /* ecc error */ + g4_index += 0x108; /* read redundant subpage */ + buf -= 256; /* back up ram ptr */ + continue; + } else /* no ecc error */ + g4_index += 0x210; /* skip redundant subpage */ + } else /* redundant page was just read; skip ecc error check */ + g4_index += 0x108; + + if (g4_index == 0x420) { /* finished with 2k page */ + g4_index = 0; + g4_page += 2; /* odd-numbered 2k pages skipped */ + } + + } while (g4_page != last_g4_page); /* while still on same block */ + + return 0; +} diff --git a/drivers/mtd/nand/mxc_nand_spl.c b/drivers/mtd/nand/mxc_nand_spl.c index 09f23c30c4..ba725e9f18 100644 --- a/drivers/mtd/nand/mxc_nand_spl.c +++ b/drivers/mtd/nand/mxc_nand_spl.c @@ -290,7 +290,7 @@ static int is_badblock(int pagenumber) return 0; } -static int nand_load(unsigned int from, unsigned int size, unsigned char *buf) +int nand_spl_load_image(uint32_t from, unsigned int size, void *buf) { int i; unsigned int page; @@ -303,6 +303,7 @@ static int nand_load(unsigned int from, unsigned int size, unsigned char *buf) page = from / CONFIG_SYS_NAND_PAGE_SIZE; i = 0; + size = roundup(size, CONFIG_SYS_NAND_PAGE_SIZE); while (i < size / CONFIG_SYS_NAND_PAGE_SIZE) { if (nfc_read_page(page, buf) < 0) return -1; @@ -332,6 +333,7 @@ static int nand_load(unsigned int from, unsigned int size, unsigned char *buf) return 0; } +#ifndef CONFIG_SPL_FRAMEWORK /* * The main entry for NAND booting. It's necessary that SDRAM is already * configured and available since this code loads the main U-Boot image @@ -345,8 +347,9 @@ void nand_boot(void) * CONFIG_SYS_NAND_U_BOOT_OFFS and CONFIG_SYS_NAND_U_BOOT_SIZE must * be aligned to full pages */ - if (!nand_load(CONFIG_SYS_NAND_U_BOOT_OFFS, CONFIG_SYS_NAND_U_BOOT_SIZE, - (uchar *)CONFIG_SYS_NAND_U_BOOT_DST)) { + if (!nand_spl_load_image(CONFIG_SYS_NAND_U_BOOT_OFFS, + CONFIG_SYS_NAND_U_BOOT_SIZE, + (uchar *)CONFIG_SYS_NAND_U_BOOT_DST)) { /* Copy from NAND successful, start U-boot */ uboot = (void *)CONFIG_SYS_NAND_U_BOOT_START; uboot(); @@ -355,12 +358,7 @@ void nand_boot(void) hang(); } } +#endif -/* - * Called in case of an exception. - */ -void hang(void) -{ - /* Loop forever */ - while (1) ; -} +void nand_init(void) {} +void nand_deselect(void) {} diff --git a/drivers/mtd/nand/mxs_nand.c b/drivers/mtd/nand/mxs_nand.c index e38e151254..398e4ddc15 100644 --- a/drivers/mtd/nand/mxs_nand.c +++ b/drivers/mtd/nand/mxs_nand.c @@ -34,12 +34,19 @@ #include <asm/io.h> #include <asm/arch/clock.h> #include <asm/arch/imx-regs.h> +#include <asm/imx-common/regs-bch.h> +#include <asm/imx-common/regs-gpmi.h> #include <asm/arch/sys_proto.h> -#include <asm/arch/dma.h> +#include <asm/imx-common/dma.h> #define MXS_NAND_DMA_DESCRIPTOR_COUNT 4 #define MXS_NAND_CHUNK_DATA_CHUNK_SIZE 512 +#if defined(CONFIG_MX6) +#define MXS_NAND_CHUNK_DATA_CHUNK_SIZE_SHIFT 2 +#else +#define MXS_NAND_CHUNK_DATA_CHUNK_SIZE_SHIFT 0 +#endif #define MXS_NAND_METADATA_SIZE 10 #define MXS_NAND_COMMAND_BUFFER_SIZE 32 @@ -980,14 +987,16 @@ static int mxs_nand_scan_bbt(struct mtd_info *mtd) tmp |= MXS_NAND_METADATA_SIZE << BCH_FLASHLAYOUT0_META_SIZE_OFFSET; tmp |= (mxs_nand_get_ecc_strength(mtd->writesize, mtd->oobsize) >> 1) << BCH_FLASHLAYOUT0_ECC0_OFFSET; - tmp |= MXS_NAND_CHUNK_DATA_CHUNK_SIZE; + tmp |= MXS_NAND_CHUNK_DATA_CHUNK_SIZE + >> MXS_NAND_CHUNK_DATA_CHUNK_SIZE_SHIFT; writel(tmp, &bch_regs->hw_bch_flash0layout0); tmp = (mtd->writesize + mtd->oobsize) << BCH_FLASHLAYOUT1_PAGE_SIZE_OFFSET; tmp |= (mxs_nand_get_ecc_strength(mtd->writesize, mtd->oobsize) >> 1) << BCH_FLASHLAYOUT1_ECCN_OFFSET; - tmp |= MXS_NAND_CHUNK_DATA_CHUNK_SIZE; + tmp |= MXS_NAND_CHUNK_DATA_CHUNK_SIZE + >> MXS_NAND_CHUNK_DATA_CHUNK_SIZE_SHIFT; writel(tmp, &bch_regs->hw_bch_flash0layout1); /* Set *all* chip selects to use layout 0 */ diff --git a/drivers/net/fm/memac.c b/drivers/net/fm/memac.c index 32c7054e35..d3eee248ac 100644 --- a/drivers/net/fm/memac.c +++ b/drivers/net/fm/memac.c @@ -112,6 +112,23 @@ static void memac_set_interface_mode(struct fsl_enet_mac *mac, /* Enable automatic speed selection */ if_mode |= IF_MODE_EN_AUTO; + if (type == PHY_INTERFACE_MODE_RGMII) { + if_mode &= ~IF_MODE_EN_AUTO; + if_mode &= ~IF_MODE_SETSP_MASK; + switch (speed) { + case SPEED_1000: + if_mode |= IF_MODE_SETSP_1000M; + break; + case SPEED_100: + if_mode |= IF_MODE_SETSP_100M; + break; + case SPEED_10: + if_mode |= IF_MODE_SETSP_10M; + default: + break; + } + } + debug(" %s, if_mode = %x\n", __func__, if_mode); debug(" %s, if_status = %x\n", __func__, if_status); out_be32(®s->if_mode, if_mode); diff --git a/drivers/spi/mxs_spi.c b/drivers/spi/mxs_spi.c index aa999f9a94..db98a136e6 100644 --- a/drivers/spi/mxs_spi.c +++ b/drivers/spi/mxs_spi.c @@ -31,7 +31,7 @@ #include <asm/arch/clock.h> #include <asm/arch/imx-regs.h> #include <asm/arch/sys_proto.h> -#include <asm/arch/dma.h> +#include <asm/imx-common/dma.h> #define MXS_SPI_MAX_TIMEOUT 1000000 #define MXS_SPI_PORT_OFFSET 0x2000 diff --git a/drivers/usb/gadget/pxa27x_udc.c b/drivers/usb/gadget/pxa27x_udc.c index 4c00081743..71cc0f2a05 100644 --- a/drivers/usb/gadget/pxa27x_udc.c +++ b/drivers/usb/gadget/pxa27x_udc.c @@ -610,7 +610,9 @@ void udc_connect(void) #ifdef CONFIG_USB_DEV_PULLUP_GPIO /* Turn on the USB connection by enabling the pullup resistor */ - set_GPIO_mode(CONFIG_USB_DEV_PULLUP_GPIO | GPIO_OUT); + writel(readl(GPDR(CONFIG_USB_DEV_PULLUP_GPIO)) + | GPIO_bit(CONFIG_USB_DEV_PULLUP_GPIO), + GPDR(CONFIG_USB_DEV_PULLUP_GPIO)); writel(GPIO_bit(CONFIG_USB_DEV_PULLUP_GPIO), GPSR(CONFIG_USB_DEV_PULLUP_GPIO)); #else /* Host port 2 transceiver D+ pull up enable */ diff --git a/drivers/usb/host/ehci-mx5.c b/drivers/usb/host/ehci-mx5.c index adbed5c90c..f43c38da61 100644 --- a/drivers/usb/host/ehci-mx5.c +++ b/drivers/usb/host/ehci-mx5.c @@ -21,8 +21,6 @@ #include <asm/io.h> #include <asm/arch/imx-regs.h> #include <asm/arch/clock.h> -#include <asm/arch/mx5x_pins.h> -#include <asm/arch/iomux.h> #include "ehci.h" @@ -87,77 +85,6 @@ /* USB_CTRL_1 */ #define MXC_USB_CTRL_UH1_EXT_CLK_EN (1 << 25) -/* USB pin configuration */ -#define USB_PAD_CONFIG (PAD_CTL_PKE_ENABLE | PAD_CTL_SRE_FAST | \ - PAD_CTL_DRV_HIGH | PAD_CTL_100K_PU | \ - PAD_CTL_HYS_ENABLE | PAD_CTL_PUE_PULL) - -#ifdef CONFIG_MX51 -/* - * Configure the MX51 USB H1 IOMUX - */ -void setup_iomux_usb_h1(void) -{ - mxc_request_iomux(MX51_PIN_USBH1_STP, IOMUX_CONFIG_ALT0); - mxc_iomux_set_pad(MX51_PIN_USBH1_STP, USB_PAD_CONFIG); - mxc_request_iomux(MX51_PIN_USBH1_CLK, IOMUX_CONFIG_ALT0); - mxc_iomux_set_pad(MX51_PIN_USBH1_CLK, USB_PAD_CONFIG); - mxc_request_iomux(MX51_PIN_USBH1_DIR, IOMUX_CONFIG_ALT0); - mxc_iomux_set_pad(MX51_PIN_USBH1_DIR, USB_PAD_CONFIG); - mxc_request_iomux(MX51_PIN_USBH1_NXT, IOMUX_CONFIG_ALT0); - mxc_iomux_set_pad(MX51_PIN_USBH1_NXT, USB_PAD_CONFIG); - - mxc_request_iomux(MX51_PIN_USBH1_DATA0, IOMUX_CONFIG_ALT0); - mxc_iomux_set_pad(MX51_PIN_USBH1_DATA0, USB_PAD_CONFIG); - mxc_request_iomux(MX51_PIN_USBH1_DATA1, IOMUX_CONFIG_ALT0); - mxc_iomux_set_pad(MX51_PIN_USBH1_DATA1, USB_PAD_CONFIG); - mxc_request_iomux(MX51_PIN_USBH1_DATA2, IOMUX_CONFIG_ALT0); - mxc_iomux_set_pad(MX51_PIN_USBH1_DATA2, USB_PAD_CONFIG); - mxc_request_iomux(MX51_PIN_USBH1_DATA3, IOMUX_CONFIG_ALT0); - mxc_iomux_set_pad(MX51_PIN_USBH1_DATA3, USB_PAD_CONFIG); - mxc_request_iomux(MX51_PIN_USBH1_DATA4, IOMUX_CONFIG_ALT0); - mxc_iomux_set_pad(MX51_PIN_USBH1_DATA4, USB_PAD_CONFIG); - mxc_request_iomux(MX51_PIN_USBH1_DATA5, IOMUX_CONFIG_ALT0); - mxc_iomux_set_pad(MX51_PIN_USBH1_DATA5, USB_PAD_CONFIG); - mxc_request_iomux(MX51_PIN_USBH1_DATA6, IOMUX_CONFIG_ALT0); - mxc_iomux_set_pad(MX51_PIN_USBH1_DATA6, USB_PAD_CONFIG); - mxc_request_iomux(MX51_PIN_USBH1_DATA7, IOMUX_CONFIG_ALT0); - mxc_iomux_set_pad(MX51_PIN_USBH1_DATA7, USB_PAD_CONFIG); -} - -/* - * Configure the MX51 USB H2 IOMUX - */ -void setup_iomux_usb_h2(void) -{ - mxc_request_iomux(MX51_PIN_EIM_A24, IOMUX_CONFIG_ALT2); - mxc_iomux_set_pad(MX51_PIN_EIM_A24, USB_PAD_CONFIG); - mxc_request_iomux(MX51_PIN_EIM_A25, IOMUX_CONFIG_ALT2); - mxc_iomux_set_pad(MX51_PIN_EIM_A25, USB_PAD_CONFIG); - mxc_request_iomux(MX51_PIN_EIM_A26, IOMUX_CONFIG_ALT2); - mxc_iomux_set_pad(MX51_PIN_EIM_A26, USB_PAD_CONFIG); - mxc_request_iomux(MX51_PIN_EIM_A27, IOMUX_CONFIG_ALT2); - mxc_iomux_set_pad(MX51_PIN_EIM_A27, USB_PAD_CONFIG); - - mxc_request_iomux(MX51_PIN_EIM_D16, IOMUX_CONFIG_ALT2); - mxc_iomux_set_pad(MX51_PIN_EIM_D16, USB_PAD_CONFIG); - mxc_request_iomux(MX51_PIN_EIM_D17, IOMUX_CONFIG_ALT2); - mxc_iomux_set_pad(MX51_PIN_EIM_D17, USB_PAD_CONFIG); - mxc_request_iomux(MX51_PIN_EIM_D18, IOMUX_CONFIG_ALT2); - mxc_iomux_set_pad(MX51_PIN_EIM_D18, USB_PAD_CONFIG); - mxc_request_iomux(MX51_PIN_EIM_D19, IOMUX_CONFIG_ALT2); - mxc_iomux_set_pad(MX51_PIN_EIM_D19, USB_PAD_CONFIG); - mxc_request_iomux(MX51_PIN_EIM_D20, IOMUX_CONFIG_ALT2); - mxc_iomux_set_pad(MX51_PIN_EIM_D20, USB_PAD_CONFIG); - mxc_request_iomux(MX51_PIN_EIM_D21, IOMUX_CONFIG_ALT2); - mxc_iomux_set_pad(MX51_PIN_EIM_D21, USB_PAD_CONFIG); - mxc_request_iomux(MX51_PIN_EIM_D22, IOMUX_CONFIG_ALT2); - mxc_iomux_set_pad(MX51_PIN_EIM_D22, USB_PAD_CONFIG); - mxc_request_iomux(MX51_PIN_EIM_D23, IOMUX_CONFIG_ALT2); - mxc_iomux_set_pad(MX51_PIN_EIM_D23, USB_PAD_CONFIG); -} -#endif - int mxc_set_usbcontrol(int port, unsigned int flags) { unsigned int v; diff --git a/drivers/video/Makefile b/drivers/video/Makefile index 53952ab07e..68ff34bfd5 100644 --- a/drivers/video/Makefile +++ b/drivers/video/Makefile @@ -49,6 +49,7 @@ COBJS-$(CONFIG_VIDEO_MB862xx) += mb862xx.o videomodes.o COBJS-$(CONFIG_VIDEO_MB86R0xGDC) += mb86r0xgdc.o videomodes.o COBJS-$(CONFIG_VIDEO_MX3) += mx3fb.o videomodes.o COBJS-$(CONFIG_VIDEO_IPUV3) += mxc_ipuv3_fb.o ipu_common.o ipu_disp.o +COBJS-$(CONFIG_VIDEO_MXS) += mxsfb.o videomodes.o COBJS-$(CONFIG_VIDEO_OMAP3) += omap3_dss.o COBJS-$(CONFIG_VIDEO_SED13806) += sed13806.o COBJS-$(CONFIG_VIDEO_SM501) += sm501.o diff --git a/drivers/video/cfb_console.c b/drivers/video/cfb_console.c index 61e1058adc..0793f07f24 100644 --- a/drivers/video/cfb_console.c +++ b/drivers/video/cfb_console.c @@ -151,6 +151,10 @@ #endif #endif +#ifdef CONFIG_VIDEO_MXS +#define VIDEO_FB_16BPP_WORD_SWAP +#endif + /* * Defines for the MB862xx driver */ diff --git a/drivers/video/mxsfb.c b/drivers/video/mxsfb.c new file mode 100644 index 0000000000..461ff6e860 --- /dev/null +++ b/drivers/video/mxsfb.c @@ -0,0 +1,189 @@ +/* + * Freescale i.MX23/i.MX28 LCDIF driver + * + * Copyright (C) 2011-2013 Marek Vasut <marex@denx.de> + * + * 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 <malloc.h> +#include <video_fb.h> + +#include <asm/arch/imx-regs.h> +#include <asm/arch/clock.h> +#include <asm/arch/sys_proto.h> +#include <asm/errno.h> +#include <asm/io.h> + +#include "videomodes.h" + +#define PS2KHZ(ps) (1000000000UL / (ps)) + +static GraphicDevice panel; + +/* + * DENX M28EVK: + * setenv videomode + * video=ctfb:x:800,y:480,depth:18,mode:0,pclk:30066, + * le:0,ri:256,up:0,lo:45,hs:1,vs:1,sync:100663296,vmode:0 + */ + +static void mxs_lcd_init(GraphicDevice *panel, + struct ctfb_res_modes *mode, int bpp) +{ + struct mxs_lcdif_regs *regs = (struct mxs_lcdif_regs *)MXS_LCDIF_BASE; + uint32_t word_len = 0, bus_width = 0; + uint8_t valid_data = 0; + + /* Kick in the LCDIF clock */ + mxs_set_lcdclk(PS2KHZ(mode->pixclock)); + + /* Restart the LCDIF block */ + mxs_reset_block(®s->hw_lcdif_ctrl_reg); + + switch (bpp) { + case 24: + word_len = LCDIF_CTRL_WORD_LENGTH_24BIT; + bus_width = LCDIF_CTRL_LCD_DATABUS_WIDTH_24BIT; + valid_data = 0x7; + break; + case 18: + word_len = LCDIF_CTRL_WORD_LENGTH_24BIT; + bus_width = LCDIF_CTRL_LCD_DATABUS_WIDTH_18BIT; + valid_data = 0x7; + break; + case 16: + word_len = LCDIF_CTRL_WORD_LENGTH_16BIT; + bus_width = LCDIF_CTRL_LCD_DATABUS_WIDTH_16BIT; + valid_data = 0xf; + break; + case 8: + word_len = LCDIF_CTRL_WORD_LENGTH_8BIT; + bus_width = LCDIF_CTRL_LCD_DATABUS_WIDTH_8BIT; + valid_data = 0xf; + break; + } + + writel(bus_width | word_len | LCDIF_CTRL_DOTCLK_MODE | + LCDIF_CTRL_BYPASS_COUNT | LCDIF_CTRL_LCDIF_MASTER, + ®s->hw_lcdif_ctrl); + + writel(valid_data << LCDIF_CTRL1_BYTE_PACKING_FORMAT_OFFSET, + ®s->hw_lcdif_ctrl1); + writel((mode->yres << LCDIF_TRANSFER_COUNT_V_COUNT_OFFSET) | mode->xres, + ®s->hw_lcdif_transfer_count); + + writel(LCDIF_VDCTRL0_ENABLE_PRESENT | LCDIF_VDCTRL0_ENABLE_POL | + LCDIF_VDCTRL0_VSYNC_PERIOD_UNIT | + LCDIF_VDCTRL0_VSYNC_PULSE_WIDTH_UNIT | + mode->vsync_len, ®s->hw_lcdif_vdctrl0); + writel(mode->upper_margin + mode->lower_margin + + mode->vsync_len + mode->yres, + ®s->hw_lcdif_vdctrl1); + writel((mode->hsync_len << LCDIF_VDCTRL2_HSYNC_PULSE_WIDTH_OFFSET) | + (mode->left_margin + mode->right_margin + + mode->hsync_len + mode->xres), + ®s->hw_lcdif_vdctrl2); + writel(((mode->left_margin + mode->hsync_len) << + LCDIF_VDCTRL3_HORIZONTAL_WAIT_CNT_OFFSET) | + (mode->upper_margin + mode->vsync_len), + ®s->hw_lcdif_vdctrl3); + writel((0 << LCDIF_VDCTRL4_DOTCLK_DLY_SEL_OFFSET) | mode->xres, + ®s->hw_lcdif_vdctrl4); + + writel(panel->frameAdrs, ®s->hw_lcdif_cur_buf); + writel(panel->frameAdrs, ®s->hw_lcdif_next_buf); + + /* Flush FIFO first */ + writel(LCDIF_CTRL1_FIFO_CLEAR, ®s->hw_lcdif_ctrl1_set); + + /* Sync signals ON */ + setbits_le32(®s->hw_lcdif_vdctrl4, LCDIF_VDCTRL4_SYNC_SIGNALS_ON); + + /* FIFO cleared */ + writel(LCDIF_CTRL1_FIFO_CLEAR, ®s->hw_lcdif_ctrl1_clr); + + /* RUN! */ + writel(LCDIF_CTRL_RUN, ®s->hw_lcdif_ctrl_set); +} + +void *video_hw_init(void) +{ + int bpp = -1; + char *penv; + void *fb; + struct ctfb_res_modes mode; + + puts("Video: "); + + /* Suck display configuration from "videomode" variable */ + penv = getenv("videomode"); + if (!penv) { + printf("MXSFB: 'videomode' variable not set!"); + return NULL; + } + + bpp = video_get_params(&mode, penv); + + /* fill in Graphic device struct */ + sprintf(panel.modeIdent, "%dx%dx%d", + mode.xres, mode.yres, bpp); + + panel.winSizeX = mode.xres; + panel.winSizeY = mode.yres; + panel.plnSizeX = mode.xres; + panel.plnSizeY = mode.yres; + + switch (bpp) { + case 24: + case 18: + panel.gdfBytesPP = 4; + panel.gdfIndex = GDF_32BIT_X888RGB; + break; + case 16: + panel.gdfBytesPP = 2; + panel.gdfIndex = GDF_16BIT_565RGB; + break; + case 8: + panel.gdfBytesPP = 1; + panel.gdfIndex = GDF__8BIT_INDEX; + break; + default: + printf("MXSFB: Invalid BPP specified! (bpp = %i)\n", bpp); + return NULL; + } + + panel.memSize = mode.xres * mode.yres * panel.gdfBytesPP; + + /* Allocate framebuffer */ + fb = malloc(panel.memSize); + if (!fb) { + printf("MXSFB: Error allocating framebuffer!\n"); + return NULL; + } + + /* Wipe framebuffer */ + memset(fb, 0, panel.memSize); + + panel.frameAdrs = (u32)fb; + + printf("%s\n", panel.modeIdent); + + /* Start framebuffer */ + mxs_lcd_init(&panel, &mode, bpp); + + return (void *)&panel; +} diff --git a/drivers/video/pxa_lcd.c b/drivers/video/pxa_lcd.c index b40ec3689b..5e4c6853cd 100644 --- a/drivers/video/pxa_lcd.c +++ b/drivers/video/pxa_lcd.c @@ -248,6 +248,38 @@ vidinfo_t panel_info = { }; #endif /* CONFIG_ACX517AKN */ +#ifdef CONFIG_ACX544AKN + +# define LCD_BPP LCD_COLOR16 + +/* you have to set lccr0 and lccr3 (including pcd) */ +# define REG_LCCR0 0x003008f9 +# define REG_LCCR3 0x04700007 /* 16bpp */ + +vidinfo_t panel_info = { + .vl_col = 320, + .vl_row = 320, + .vl_width = 320, + .vl_height = 320, + .vl_clkp = CONFIG_SYS_LOW, + .vl_oep = CONFIG_SYS_LOW, + .vl_hsp = CONFIG_SYS_LOW, + .vl_vsp = CONFIG_SYS_LOW, + .vl_dp = CONFIG_SYS_LOW, + .vl_bpix = LCD_BPP, + .vl_lbw = 0, + .vl_splt = 0, + .vl_clor = 1, + .vl_tft = 1, + .vl_hpw = 0x05, + .vl_blw = 0x13, + .vl_elw = 0x08, + .vl_vpw = 0x02, + .vl_bfw = 0x07, + .vl_efw = 0x05, +}; +#endif /* CONFIG_ACX544AKN */ + /*----------------------------------------------------------------------*/ #ifdef CONFIG_LQ038J7DH53 @@ -378,7 +410,7 @@ void lcd_initcolregs (void) #endif /* LCD_MONOCHROME */ /*----------------------------------------------------------------------*/ -void lcd_enable (void) +__weak void lcd_enable(void) { } diff --git a/drivers/watchdog/Makefile b/drivers/watchdog/Makefile index b1f4e0f03f..13e7c37686 100644 --- a/drivers/watchdog/Makefile +++ b/drivers/watchdog/Makefile @@ -32,6 +32,7 @@ COBJS-y += imx_watchdog.o endif COBJS-$(CONFIG_TNETV107X_WATCHDOG) += tnetv107x_wdt.o COBJS-$(CONFIG_S5P) += s5p_wdt.o +COBJS-$(CONFIG_XILINX_TB_WATCHDOG) += xilinx_tb_wdt.o COBJS := $(COBJS-y) SRCS := $(COBJS:.o=.c) diff --git a/drivers/watchdog/xilinx_tb_wdt.c b/drivers/watchdog/xilinx_tb_wdt.c new file mode 100644 index 0000000000..f7c722e7ca --- /dev/null +++ b/drivers/watchdog/xilinx_tb_wdt.c @@ -0,0 +1,87 @@ +/* + * Copyright (c) 2011-2013 Xilinx Inc. + * + * 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 <asm/io.h> +#include <asm/microblaze_intc.h> +#include <asm/processor.h> +#include <watchdog.h> + +#define XWT_CSR0_WRS_MASK 0x00000008 /* Reset status Mask */ +#define XWT_CSR0_WDS_MASK 0x00000004 /* Timer state Mask */ +#define XWT_CSR0_EWDT1_MASK 0x00000002 /* Enable bit 1 Mask*/ +#define XWT_CSRX_EWDT2_MASK 0x00000001 /* Enable bit 2 Mask */ + +struct watchdog_regs { + u32 twcsr0; /* 0x0 */ + u32 twcsr1; /* 0x4 */ + u32 tbr; /* 0x8 */ +}; + +static struct watchdog_regs *watchdog_base = + (struct watchdog_regs *)CONFIG_WATCHDOG_BASEADDR; + +void hw_watchdog_reset(void) +{ + u32 reg; + + /* Read the current contents of TCSR0 */ + reg = readl(&watchdog_base->twcsr0); + + /* Clear the watchdog WDS bit */ + if (reg & (XWT_CSR0_EWDT1_MASK | XWT_CSRX_EWDT2_MASK)) + writel(reg | XWT_CSR0_WDS_MASK, &watchdog_base->twcsr0); +} + +void hw_watchdog_disable(void) +{ + u32 reg; + + /* Read the current contents of TCSR0 */ + reg = readl(&watchdog_base->twcsr0); + + writel(reg & ~XWT_CSR0_EWDT1_MASK, &watchdog_base->twcsr0); + writel(~XWT_CSRX_EWDT2_MASK, &watchdog_base->twcsr1); + + puts("Watchdog disabled!\n"); +} + +static void hw_watchdog_isr(void *arg) +{ + hw_watchdog_reset(); +} + +int hw_watchdog_init(void) +{ + int ret; + + writel((XWT_CSR0_WRS_MASK | XWT_CSR0_WDS_MASK | XWT_CSR0_EWDT1_MASK), + &watchdog_base->twcsr0); + writel(XWT_CSRX_EWDT2_MASK, &watchdog_base->twcsr1); + + ret = install_interrupt_handler(CONFIG_WATCHDOG_IRQ, + hw_watchdog_isr, NULL); + if (ret) + return 1; + + return 0; +} |
