diff options
Diffstat (limited to 'sys/boot/mips/beri/common/sdcard.c')
| -rw-r--r-- | sys/boot/mips/beri/common/sdcard.c | 334 |
1 files changed, 0 insertions, 334 deletions
diff --git a/sys/boot/mips/beri/common/sdcard.c b/sys/boot/mips/beri/common/sdcard.c deleted file mode 100644 index e50f4e70017d..000000000000 --- a/sys/boot/mips/beri/common/sdcard.c +++ /dev/null @@ -1,334 +0,0 @@ -/*- - * Copyright (c) 2012-2014 Robert N. M. Watson - * All rights reserved. - * - * This software was developed by SRI International and the University of - * Cambridge Computer Laboratory under DARPA/AFRL contract (FA8750-10-C-0237) - * ("CTSRD"), as part of the DARPA CRASH research programme. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ - -#include <sys/types.h> -#include <sys/endian.h> - -#include <inttypes.h> -#include <stdio.h> - - -/* - * Altera University Program SD Card micro-driver for boot2 and loader. - * - * XXXRW: It might be nice to add 'unit' arguments to all APIs to allow - * multiple instances to be addressed. - */ - -/* Constants lifted from altera_sdcard.h -- possibly we should share headers? */ -#define ALTERA_SDCARD_OFF_RXTX_BUFFER 0 /* 512-byte I/O buffer */ -#define ALTERA_SDCARD_OFF_CID 512 /* 16-byte Card ID number */ -#define ALTERA_SDCARD_OFF_CSD 528 /* 16-byte Card Specific Data */ -#define ALTERA_SDCARD_OFF_OCR 544 /* Operating Conditions Reg */ -#define ALTERA_SDCARD_OFF_SR 548 /* SD Card Status Register */ -#define ALTERA_SDCARD_OFF_RCA 552 /* Relative Card Address Reg */ -#define ALTERA_SDCARD_OFF_CMD_ARG 556 /* Command Argument Register */ -#define ALTERA_SDCARD_OFF_CMD 560 /* Command Register */ -#define ALTERA_SDCARD_OFF_ASR 564 /* Auxiliary Status Register */ -#define ALTERA_SDCARD_OFF_RR1 568 /* Response R1 */ - -#define ALTERA_SDCARD_SECTORSIZE 512 - -#define ALTERA_SDCARD_CMD_SEND_RCA 0x03 /* Retrieve card RCA. */ -#define ALTERA_SDCARD_CMD_SEND_CSD 0x09 /* Retrieve CSD register. */ -#define ALTERA_SDCARD_CMD_SEND_CID 0x0A /* Retrieve CID register. */ -#define ALTERA_SDCARD_CMD_READ_BLOCK 0x11 /* Read block from disk. */ -#define ALTERA_SDCARD_CMD_WRITE_BLOCK 0x18 /* Write block to disk. */ - -#define ALTERA_SDCARD_ASR_CMDVALID 0x0001 -#define ALTERA_SDCARD_ASR_CARDPRESENT 0x0002 -#define ALTERA_SDCARD_ASR_CMDINPROGRESS 0x0004 -#define ALTERA_SDCARD_ASR_SRVALID 0x0008 -#define ALTERA_SDCARD_ASR_CMDTIMEOUT 0x0010 -#define ALTERA_SDCARD_ASR_CMDDATAERROR 0x0020 - -#define ALTERA_SDCARD_RR1_INITPROCRUNNING 0x0100 -#define ALTERA_SDCARD_RR1_ERASEINTERRUPTED 0x0200 -#define ALTERA_SDCARD_RR1_ILLEGALCOMMAND 0x0400 -#define ALTERA_SDCARD_RR1_COMMANDCRCFAILED 0x0800 -#define ALTERA_SDCARD_RR1_ADDRESSMISALIGNED 0x1000 -#define ALTERA_SDCARD_RR1_ADDRBLOCKRANGE 0x2000 - -#define ALTERA_SDCARD_CSD_STRUCTURE_BYTE 15 -#define ALTERA_SDCARD_CSD_STRUCTURE_MASK 0xc0 /* 2 bits */ -#define ALTERA_SDCARD_CSD_STRUCTURE_RSHIFT 6 -#define ALTERA_SDCARD_CSD_SIZE 16 -#define ALTERA_SDCARD_CSD_READ_BL_LEN_BYTE 10 -#define ALTERA_SDCARD_CSD_READ_BL_LEN_MASK 0x0f /* 4 bits */ -#define ALTERA_SDCARD_CSD_C_SIZE_BYTE0 7 -#define ALTERA_SDCARD_CSD_C_SIZE_MASK0 0xc0 /* top 2 bits */ -#define ALTERA_SDCARD_CSD_C_SIZE_RSHIFT0 6 -#define ALTERA_SDCARD_CSD_C_SIZE_BYTE1 8 -#define ALTERA_SDCARD_CSD_C_SIZE_MASK1 0xff /* 8 bits */ -#define ALTERA_SDCARD_CSD_C_SIZE_LSHIFT1 2 -#define ALTERA_SDCARD_CSD_C_SIZE_BYTE2 9 -#define ALTERA_SDCARD_CSD_C_SIZE_MASK2 0x03 /* bottom 2 bits */ -#define ALTERA_SDCARD_CSD_C_SIZE_LSHIFT2 10 -#define ALTERA_SDCARD_CSD_C_SIZE_MULT_BYTE0 5 -#define ALTERA_SDCARD_CSD_C_SIZE_MULT_MASK0 0x80 /* top 1 bit */ -#define ALTERA_SDCARD_CSD_C_SIZE_MULT_RSHIFT0 7 -#define ALTERA_SDCARD_CSD_C_SIZE_MULT_BYTE1 6 -#define ALTERA_SDCARD_CSD_C_SIZE_MULT_MASK1 0x03 /* bottom 2 bits */ -#define ALTERA_SDCARD_CSD_C_SIZE_MULT_LSHIFT1 1 - -/* - * Not all RR1 values are "errors" per se -- check only for the ones that are - * when performing error handling. - */ -#define ALTERA_SDCARD_RR1_ERRORMASK \ - (ALTERA_SDCARD_RR1_ERASEINTERRUPTED | ALTERA_SDCARD_RR1_ILLEGALCOMMAND | \ - ALTERA_SDCARD_RR1_COMMANDCRCFAILED | ALTERA_SDCARD_RR1_ADDRESSMISALIGNED |\ - ALTERA_SDCARD_RR1_ADDRBLOCKRANGE) - -extern void __cheri_sdcard_vaddr__; - -#define ALTERA_SDCARD_PTR(type, offset) \ - (volatile type *)((uint8_t *)&__cheri_sdcard_vaddr__ + (offset)) - -static __inline uint16_t -altera_sdcard_read_uint16(u_int offset) -{ - volatile uint16_t *p; - - p = ALTERA_SDCARD_PTR(uint16_t, offset); - return (le16toh(*p)); -} - -static __inline void -altera_sdcard_write_uint16(u_int offset, uint16_t v) -{ - volatile uint16_t *p; - - p = ALTERA_SDCARD_PTR(uint16_t, offset); - *p = htole16(v); -} - -static __inline void -altera_sdcard_write_uint32(u_int offset, uint32_t v) -{ - volatile uint32_t *p; - - p = ALTERA_SDCARD_PTR(uint32_t, offset); - *p = htole32(v); -} - -static __inline uint16_t -altera_sdcard_read_asr(void) -{ - - return (altera_sdcard_read_uint16(ALTERA_SDCARD_OFF_ASR)); -} - -static __inline uint16_t -altera_sdcard_read_rr1(void) -{ - - return (altera_sdcard_read_uint16(ALTERA_SDCARD_OFF_RR1)); -} - -static __inline void -altera_sdcard_write_cmd(uint16_t cmd) -{ - - altera_sdcard_write_uint16(ALTERA_SDCARD_OFF_CMD, cmd); -} - -static __inline void -altera_sdcard_write_cmd_arg(uint32_t cmd_arg) -{ - - altera_sdcard_write_uint32(ALTERA_SDCARD_OFF_CMD_ARG, cmd_arg); -} - -/* NB: Use 16-bit aligned buffer due to hardware features, so 16-bit type. */ -static __inline void -altera_sdcard_read_csd(uint16_t *csdp) -{ - volatile uint16_t *hw_csdp; - u_int i; - - hw_csdp = ALTERA_SDCARD_PTR(uint16_t, ALTERA_SDCARD_OFF_CSD); - for (i = 0; i < ALTERA_SDCARD_CSD_SIZE / sizeof(uint16_t); i++) - csdp[i] = hw_csdp[i]; -} - -/* - * Private interface: load exactly one block of size ALTERA_SDCARD_SECTORSIZE - * from block #lba. - */ -static int -altera_sdcard_read_block(void *buf, unsigned lba) -{ - volatile uint32_t *rxtxp; - uint32_t *bufp; - uint16_t asr, rr1; - int i; - - if (!(altera_sdcard_read_asr() & ALTERA_SDCARD_ASR_CARDPRESENT)) { - printf("SD Card: card not present\n"); - return (-1); - } - - bufp = (uint32_t *)buf; - rxtxp = ALTERA_SDCARD_PTR(uint32_t, ALTERA_SDCARD_OFF_RXTX_BUFFER); - - /* - * Issue read block command. - */ - altera_sdcard_write_cmd_arg(lba * ALTERA_SDCARD_SECTORSIZE); - altera_sdcard_write_cmd(ALTERA_SDCARD_CMD_READ_BLOCK); - - /* - * Wait for device to signal completion of command. - */ - while ((asr = altera_sdcard_read_asr()) & - ALTERA_SDCARD_ASR_CMDINPROGRESS); - - /* - * Due to hardware bugs/features, interpretting this field is messy. - */ - rr1 = altera_sdcard_read_rr1(); - rr1 &= ~ALTERA_SDCARD_RR1_COMMANDCRCFAILED; /* HW bug. */ - if (asr & ALTERA_SDCARD_ASR_CMDTIMEOUT) { - printf("SD Card: timeout\n"); - return (-1); - } - if ((asr & ALTERA_SDCARD_ASR_CMDDATAERROR) && - (rr1 & ALTERA_SDCARD_RR1_ERRORMASK)) { - printf("SD Card: asr %u rr1 %u\n", asr, rr1); - return (-1); - } - - /* - * We can't use a regular memcpy() due to byte-enable bugs in the - * Altera IP core: instead copy in 32-bit units. - */ - for (i = 0; i < ALTERA_SDCARD_SECTORSIZE/sizeof(uint32_t); i++) - bufp[i] = rxtxp[i]; - return (0); -} - -/* - * Public interface: load 'nblk' blocks from block #lba into *buf. - */ -int -altera_sdcard_read(void *buf, unsigned lba, unsigned nblk) -{ - uint8_t *bufp = buf; - int i; - - for (i = 0; i < nblk; i++) { - if (altera_sdcard_read_block(bufp + i * - ALTERA_SDCARD_SECTORSIZE, lba + i) < 0) { - printf("SD Card: block read %u failed\n", i); - return (-1); - } - } - return (0); -} - -/* - * Public interface: query (current) media size. - */ -uint64_t -altera_sdcard_get_mediasize(void) -{ - uint64_t mediasize; - uint64_t c_size, c_size_mult, read_bl_len; - uint16_t csd16[ALTERA_SDCARD_CSD_SIZE/sizeof(uint16_t)]; - uint8_t *csd8p = (uint8_t *)&csd16; - uint8_t byte0, byte1, byte2; - - altera_sdcard_read_csd(csd16); /* Provide 16-bit alignment. */ - - read_bl_len = csd8p[ALTERA_SDCARD_CSD_READ_BL_LEN_BYTE]; - read_bl_len &= ALTERA_SDCARD_CSD_READ_BL_LEN_MASK; - - byte0 = csd8p[ALTERA_SDCARD_CSD_C_SIZE_BYTE0]; - byte0 &= ALTERA_SDCARD_CSD_C_SIZE_MASK0; - byte1 = csd8p[ALTERA_SDCARD_CSD_C_SIZE_BYTE1]; - byte2 = csd8p[ALTERA_SDCARD_CSD_C_SIZE_BYTE2]; - byte2 &= ALTERA_SDCARD_CSD_C_SIZE_MASK2; - c_size = (byte0 >> ALTERA_SDCARD_CSD_C_SIZE_RSHIFT0) | - (byte1 << ALTERA_SDCARD_CSD_C_SIZE_LSHIFT1) | - (byte2 << ALTERA_SDCARD_CSD_C_SIZE_LSHIFT2); - - byte0 = csd8p[ALTERA_SDCARD_CSD_C_SIZE_MULT_BYTE0]; - byte0 &= ALTERA_SDCARD_CSD_C_SIZE_MULT_MASK0; - byte1 = csd8p[ALTERA_SDCARD_CSD_C_SIZE_MULT_BYTE1]; - byte1 &= ALTERA_SDCARD_CSD_C_SIZE_MULT_MASK1; - c_size_mult = (byte0 >> ALTERA_SDCARD_CSD_C_SIZE_MULT_RSHIFT0) | - (byte1 << ALTERA_SDCARD_CSD_C_SIZE_MULT_LSHIFT1); - - mediasize = (c_size + 1) * (1 << (c_size_mult + 2)) * - (1 << read_bl_len); - return (mediasize); -} - -/* - * Public interface: is media present / supported? - */ -int -altera_sdcard_get_present(void) -{ - uint16_t csd16[ALTERA_SDCARD_CSD_SIZE/sizeof(uint16_t)]; - uint8_t *csd8p = (uint8_t *)&csd16; - uint8_t csd_structure; - - /* First: does status bit think it is there? */ - if (!(altera_sdcard_read_asr() & ALTERA_SDCARD_ASR_CARDPRESENT)) { - printf("SD Card: not present\n"); - return (0); - } - - /* Second: do we understand the CSD structure version? */ - altera_sdcard_read_csd(csd16); /* Provide 16-bit alignment. */ - csd_structure = csd8p[ALTERA_SDCARD_CSD_STRUCTURE_BYTE]; - csd_structure &= ALTERA_SDCARD_CSD_STRUCTURE_MASK; - csd_structure >>= ALTERA_SDCARD_CSD_STRUCTURE_RSHIFT; - if (csd_structure != 0) { - printf("SD Card: unrecognised csd %u\n", csd_structure); - return (0); - } - - return (1); -} - -/* - * Public interface: query sector size. - */ -uint64_t -altera_sdcard_get_sectorsize(void) -{ - - return (ALTERA_SDCARD_SECTORSIZE); -} |