From 2824bd5f1644a6b9129a0c0fcfe2bafab91a7225 Mon Sep 17 00:00:00 2001 From: Solomon Peachy Date: Fri, 1 Nov 2024 19:58:22 -0400 Subject: ipod6g: Support MAX_PHYS_SECTOR_SIZE of 4K This lets us *natively* handle varying physical sector sizes without playing games and lying about the logical sector size. (The original drives use 4K _physical_ sectors with 512B logical sectors, but you have to access everything in 4K blocks...) Achieve this by splitting the MAX_PHYS_SECTOR_SIZE code out of the main ATA driver and re-using it. Change-Id: I0bc615ab4562f1e3e83171a8633c74fb60c7da1f --- .../target/arm/s5l8702/ipod6g/storage_ata-6g.c | 179 +++++++++------------ 1 file changed, 80 insertions(+), 99 deletions(-) (limited to 'firmware/target') diff --git a/firmware/target/arm/s5l8702/ipod6g/storage_ata-6g.c b/firmware/target/arm/s5l8702/ipod6g/storage_ata-6g.c index 3c7935ad89..8cc5b44aca 100644 --- a/firmware/target/arm/s5l8702/ipod6g/storage_ata-6g.c +++ b/firmware/target/arm/s5l8702/ipod6g/storage_ata-6g.c @@ -29,6 +29,9 @@ #include "mmcdefs-target.h" #include "s5l8702.h" #include "led.h" +#include "debug.h" +#include "panic.h" +#include "fs_defines.h" #ifndef ATA_RETRIES #define ATA_RETRIES 3 @@ -58,21 +61,9 @@ #define CEATA_DAT_NONBUSY_TIMEOUT 5000000 #define CEATA_MMC_RCA 1 -#if SECTOR_SIZE == 4096 -#define SIZE_SHIFT 3 /* ie 4096 >> 3 == 512 */ -#elif SECTOR_SIZE == 512 -#define SIZE_SHIFT 0 -#else -#error "Need to define SIZE_SHIFT for SECTOR_SIZE" -#endif - -#ifdef MAX_PHYS_SECTOR_SIZE -#error "Driver does not work with MAX_PHYS_SECTOR_SIZE" -#endif - /** static, private data **/ static uint8_t ceata_taskfile[16] STORAGE_ALIGN_ATTR; -static uint16_t ata_identify_data[ATA_IDENTIFY_WORDS] STORAGE_ALIGN_ATTR; +static uint16_t identify_info[ATA_IDENTIFY_WORDS] STORAGE_ALIGN_ATTR; static bool ceata; static bool ata_lba48; static bool ata_dma; @@ -89,10 +80,6 @@ static struct semaphore mmc_comp_wakeup; static int spinup_time = 0; static int dma_mode = 0; -#if SECTOR_SIZE > 512 -static char aligned_buffer[SECTOR_SIZE] STORAGE_ALIGN_ATTR; -#endif - static const int ata_retries = ATA_RETRIES; static const bool ata_error_srst = true; @@ -688,7 +675,7 @@ static int ata_power_up(void) SDCI_CDIV = SDCI_CDIV_CLKDIV(4); sleep(HZ / 100); PASS_RC(ceata_init(8), 3, 1); - PASS_RC(ata_identify(ata_identify_data), 3, 2); + PASS_RC(ata_identify(identify_info), 3, 2); } else { PCON(7) = 0x44444444; PCON(8) = 0x44444444; @@ -710,14 +697,14 @@ static int ata_power_up(void) ATA_CFG = BIT(6); while (!(ATA_PIO_READY & BIT(1))) yield(); - PASS_RC(ata_identify(ata_identify_data), 3, 3); + PASS_RC(ata_identify(identify_info), 3, 3); uint32_t piotime = 0x11f3; /* PIO0-2? */ - if (ata_identify_data[53] & BIT(1)) /* Word 64..70 valid */ + if (identify_info[53] & BIT(1)) /* Word 64..70 valid */ { - if (ata_identify_data[64] & BIT(1)) + if (identify_info[64] & BIT(1)) piotime = 0x2072; /* PIO mode 4 */ - else if (ata_identify_data[64] & BIT(0)) + else if (identify_info[64] & BIT(0)) piotime = 0x7083; /* PIO mode 3 */ } ATA_PIO_TIME = piotime; @@ -725,20 +712,20 @@ static int ata_power_up(void) uint32_t param = 0; ata_dma_flags = 0; #ifdef HAVE_ATA_DMA - if ((ata_identify_data[53] & BIT(2)) && (ata_identify_data[88] & BITRANGE(0, 4))) /* Any UDMA */ + if ((identify_info[53] & BIT(2)) && (identify_info[88] & BITRANGE(0, 4))) /* Any UDMA */ { int max_udma = ATA_MAX_UDMA; #if ATA_MAX_UDMA > 2 - if (!(ata_identify_data[93] & BIT(13))) + if (!(identify_info[93] & BIT(13))) max_udma = 2; #endif - param = ata_get_best_mode(ata_identify_data[88], max_udma, 0x40); + param = ata_get_best_mode(identify_info[88], max_udma, 0x40); ATA_UDMA_TIME = udmatimes[param & 0xf]; ata_dma_flags = BIT(2) | BIT(3) | BIT(9) | BIT(10); } - if (!param && ata_identify_data[63] & BITRANGE(0, 2)) /* Fall back to any MWDMA */ + if (!param && identify_info[63] & BITRANGE(0, 2)) /* Fall back to any MWDMA */ { - param = ata_get_best_mode(ata_identify_data[63], ATA_MAX_MWDMA, 0x20); + param = ata_get_best_mode(identify_info[63], ATA_MAX_MWDMA, 0x20); ATA_MDMA_TIME = mwdmatimes[param & 0xf]; ata_dma_flags = BIT(3) | BIT(10); } @@ -748,33 +735,32 @@ static int ata_power_up(void) PASS_RC(ata_set_feature(0x03, param), 3, 4); /* Transfer mode */ /* SET_FEATURE only supported on PATA, not CE-ATA */ - if (ata_identify_data[82] & BIT(5)) + if (identify_info[82] & BIT(5)) PASS_RC(ata_set_feature(0x02, 0), 3, 5); /* Enable volatile write cache */ - if (ata_identify_data[82] & BIT(6)) + if (identify_info[82] & BIT(6)) PASS_RC(ata_set_feature(0xaa, 0), 3, 6); /* Enable read lookahead */ - if (ata_identify_data[83] & BIT(3)) + if (identify_info[83] & BIT(3)) PASS_RC(ata_set_feature(0x05, 0x80), 3, 7); /* Enable lowest power mode w/o standby */ - if (ata_identify_data[83] & BIT(9)) + if (identify_info[83] & BIT(9)) PASS_RC(ata_set_feature(0x42, 0x80), 3, 8); /* Enable lowest noise mode */ - PASS_RC(ata_identify(ata_identify_data), 3, 9); /* Finally, re-read identify info */ + PASS_RC(ata_identify(identify_info), 3, 9); /* Finally, re-read identify info */ } spinup_time = current_tick - spinup_start; - ata_total_sectors = (ata_identify_data[61] << 16) | ata_identify_data[60]; - if ( ata_identify_data[83] & BIT(10) && ata_total_sectors == 0x0FFFFFFF) + ata_total_sectors = (identify_info[61] << 16) | identify_info[60]; + if ( identify_info[83] & BIT(10) && ata_total_sectors == 0x0FFFFFFF) { - ata_total_sectors = ((uint64_t)ata_identify_data[103] << 48) | - ((uint64_t)ata_identify_data[102] << 32) | - ((uint64_t)ata_identify_data[101] << 16) | - ata_identify_data[100]; + ata_total_sectors = ((uint64_t)identify_info[103] << 48) | + ((uint64_t)identify_info[102] << 32) | + ((uint64_t)identify_info[101] << 16) | + identify_info[100]; ata_lba48 = true; } else { ata_lba48 = false; } - ata_total_sectors >>= SIZE_SHIFT; ata_powered = true; ata_set_active(); return 0; @@ -798,18 +784,18 @@ static int ata_rw_chunk_internal(uint64_t sector, uint32_t cnt, void* buffer, bo if (ceata) { memset(ceata_taskfile, 0, 16); - ceata_taskfile[0x2] = cnt >> (8-SIZE_SHIFT); - ceata_taskfile[0x3] = sector >> (24-SIZE_SHIFT); - ceata_taskfile[0x4] = sector >> (32-SIZE_SHIFT); - ceata_taskfile[0x5] = sector >> (40-SIZE_SHIFT); - ceata_taskfile[0xa] = cnt << SIZE_SHIFT; - ceata_taskfile[0xb] = sector << SIZE_SHIFT; - ceata_taskfile[0xc] = sector >> (8-SIZE_SHIFT); - ceata_taskfile[0xd] = sector >> (16-SIZE_SHIFT); + ceata_taskfile[0x2] = cnt >> 8; + ceata_taskfile[0x3] = sector >> 24; + ceata_taskfile[0x4] = sector >> 32; + ceata_taskfile[0x5] = sector >> 40; + ceata_taskfile[0xa] = cnt; + ceata_taskfile[0xb] = sector; + ceata_taskfile[0xc] = sector >> 8; + ceata_taskfile[0xd] = sector >> 16; ceata_taskfile[0xf] = write ? CMD_WRITE_DMA_EXT : CMD_READ_DMA_EXT; PASS_RC(ceata_wait_idle(), 2, 0); PASS_RC(ceata_write_multiple_register(0, ceata_taskfile, 16), 2, 1); - PASS_RC(ceata_rw_multiple_block(write, buffer, cnt << SIZE_SHIFT, CEATA_COMMAND_TIMEOUT * HZ / 1000000), 2, 2); + PASS_RC(ceata_rw_multiple_block(write, buffer, cnt, CEATA_COMMAND_TIMEOUT * HZ / 1000000), 2, 2); } else { @@ -817,14 +803,14 @@ static int ata_rw_chunk_internal(uint64_t sector, uint32_t cnt, void* buffer, bo ata_write_cbr(&ATA_PIO_DVR, 0); if (ata_lba48) { - ata_write_cbr(&ATA_PIO_SCR, (cnt >> (8-SIZE_SHIFT)) & 0xff); - ata_write_cbr(&ATA_PIO_SCR, (cnt << SIZE_SHIFT) & 0xff); - ata_write_cbr(&ATA_PIO_LHR, (sector >> (40-SIZE_SHIFT)) & 0xff); - ata_write_cbr(&ATA_PIO_LMR, (sector >> (32-SIZE_SHIFT)) & 0xff); - ata_write_cbr(&ATA_PIO_LLR, (sector >> (24-SIZE_SHIFT)) & 0xff); - ata_write_cbr(&ATA_PIO_LHR, (sector >> (16-SIZE_SHIFT)) & 0xff); - ata_write_cbr(&ATA_PIO_LMR, (sector >> (8-SIZE_SHIFT)) & 0xff); - ata_write_cbr(&ATA_PIO_LLR, (sector << SIZE_SHIFT) & 0xff); + ata_write_cbr(&ATA_PIO_SCR, (cnt >> 8) & 0xff); + ata_write_cbr(&ATA_PIO_SCR, (cnt) & 0xff); + ata_write_cbr(&ATA_PIO_LHR, (sector >> 40) & 0xff); + ata_write_cbr(&ATA_PIO_LMR, (sector >> 32) & 0xff); + ata_write_cbr(&ATA_PIO_LLR, (sector >> 24) & 0xff); + ata_write_cbr(&ATA_PIO_LHR, (sector >> 16) & 0xff); + ata_write_cbr(&ATA_PIO_LMR, (sector >> 8) & 0xff); + ata_write_cbr(&ATA_PIO_LLR, (sector) & 0xff); ata_write_cbr(&ATA_PIO_DVR, BIT(6)); if (write) ata_write_cbr(&ATA_PIO_CSD, ata_dma ? CMD_WRITE_DMA_EXT : CMD_WRITE_MULTIPLE_EXT); @@ -833,11 +819,11 @@ static int ata_rw_chunk_internal(uint64_t sector, uint32_t cnt, void* buffer, bo } else { - ata_write_cbr(&ATA_PIO_SCR, (cnt << SIZE_SHIFT) & 0xff); - ata_write_cbr(&ATA_PIO_LHR, (sector >> (16-SIZE_SHIFT)) & 0xff); - ata_write_cbr(&ATA_PIO_LMR, (sector >> (8-SIZE_SHIFT)) & 0xff); - ata_write_cbr(&ATA_PIO_LLR, (sector << SIZE_SHIFT) & 0xff); - ata_write_cbr(&ATA_PIO_DVR, BIT(6) | ((sector >> (24-SIZE_SHIFT)) & 0xf)); + ata_write_cbr(&ATA_PIO_SCR, (cnt) & 0xff); + ata_write_cbr(&ATA_PIO_LHR, (sector >> 16) & 0xff); + ata_write_cbr(&ATA_PIO_LMR, (sector >> 8) & 0xff); + ata_write_cbr(&ATA_PIO_LLR, (sector) & 0xff); + ata_write_cbr(&ATA_PIO_DVR, BIT(6) | ((sector >> 24) & 0xf)); /* LBA28, mask off upper 4 bits of 32-bit sector address */ if (write) ata_write_cbr(&ATA_PIO_CSD, ata_dma ? CMD_WRITE_DMA : CMD_WRITE_SECTORS); else @@ -878,18 +864,17 @@ static int ata_rw_chunk_internal(uint64_t sector, uint32_t cnt, void* buffer, bo else #endif // HAVE_ATA_DMA { - cnt <<= SIZE_SHIFT; while (cnt--) { int i; PASS_RC(ata_wait_for_start_of_transfer(500000), 2, 1); if (write) - for (i = 0; i < 256; i++) + for (i = 0; i < SECTOR_SIZE/2; i++) ata_write_cbr(&ATA_PIO_DTR, ((uint16_t*)buffer)[i]); else - for (i = 0; i < 256; i++) + for (i = 0; i < SECTOR_SIZE/2; i++) ((uint16_t*)buffer)[i] = ata_read_cbr(&ATA_PIO_DTR); - buffer += (SECTOR_SIZE >> SIZE_SHIFT); + buffer += SECTOR_SIZE; } } PASS_RC(ata_wait_for_end_of_transfer(100000), 2, 3); @@ -905,30 +890,8 @@ static int ata_rw_chunk(uint64_t sector, uint32_t cnt, void* buffer, bool write) return rc; } -static int ata_rw_sectors(uint64_t sector, uint32_t count, void* buffer, bool write) +static int ata_transfer_sectors(uint64_t sector, uint32_t count, void* buffer, bool write) { -#if SECTOR_SIZE > 512 - if (STORAGE_OVERLAP((uint32_t)buffer)) - { - while (count) - { - if (write) - memcpy(aligned_buffer, buffer, SECTOR_SIZE); - - PASS_RC(ata_rw_sectors(sector, 1, aligned_buffer, write), 0, 0); - - if (!write) - memcpy(buffer, aligned_buffer, SECTOR_SIZE); - - buffer += SECTOR_SIZE; - sector++; - count--; - } - - return 0; - } -#endif - if (!ata_powered) ata_power_up(); if (sector + count > ata_total_sectors) @@ -943,7 +906,7 @@ static int ata_rw_sectors(uint64_t sector, uint32_t count, void* buffer, bool wr while (count) { - uint32_t cnt = MIN(ata_lba48 ? (65536 >> SIZE_SHIFT) : (256 >> SIZE_SHIFT), count); + uint32_t cnt = MIN(ata_lba48 ? 65536 : 256, count); int rc = -1; rc = ata_rw_chunk(sector, cnt, buffer, write); if (rc && ata_error_srst) @@ -1037,11 +1000,18 @@ static int ata_reset(void) return rc; } +#include "ata-common.c" + +#ifndef MAX_PHYS_SECTOR_SIZE int ata_read_sectors(IF_MD(int drive,) sector_t start, int incount, void* inbuf) { +#ifdef HAVE_MULTIDRIVE + (void)drive; /* unused for now */ +#endif + mutex_lock(&ata_mutex); - int rc = ata_rw_sectors(start, incount, inbuf, false); + int rc = ata_transfer_sectors(start, incount, inbuf, false); mutex_unlock(&ata_mutex); return rc; } @@ -1049,11 +1019,16 @@ int ata_read_sectors(IF_MD(int drive,) sector_t start, int incount, int ata_write_sectors(IF_MD(int drive,) sector_t start, int count, const void* outbuf) { +#ifdef HAVE_MULTIDRIVE + (void)drive; /* unused for now */ +#endif + mutex_lock(&ata_mutex); - int rc = ata_rw_sectors(start, count, (void*)((uint32_t)outbuf), true); + int rc = ata_transfer_sectors(start, count, (void*)((uint32_t)outbuf), true); mutex_unlock(&ata_mutex); return rc; } +#endif /* ndef MAX_PHYS_SECTOR_SIZE */ void ata_spindown(int seconds) { @@ -1073,11 +1048,11 @@ static void ata_flush_cache(void) } else { if (!canflush) { return; - } else if (ata_lba48 && ata_identify_data[83] & BIT(13)) { + } else if (ata_lba48 && identify_info[83] & BIT(13)) { cmd = CMD_FLUSH_CACHE_EXT; /* Flag, optional, ATA-6 and up, for use with LBA48 devices. Mandatory for CE-ATA */ - } else if (ata_identify_data[83] & BIT(12)) { + } else if (identify_info[83] & BIT(12)) { cmd = CMD_FLUSH_CACHE; /* Flag, mandatory, ATA-6 and up */ - } else if (ata_identify_data[80] >= BIT(5)) { /* Use >= instead of '&' because bits lower than the latest standard we support don't have to be set */ + } else if (identify_info[80] >= BIT(5)) { /* Use >= instead of '&' because bits lower than the latest standard we support don't have to be set */ cmd = CMD_FLUSH_CACHE; /* No flag, mandatory, ATA-5 (Optional for ATA-4) */ } else { /* If neither command is supported then don't issue it. */ @@ -1145,8 +1120,8 @@ void ata_spin(void) void ata_get_info(IF_MD(int drive,) struct storage_info *info) { /* Logical sector size */ - if ((ata_identify_data[106] & 0xd000) == 0x5000) /* B14, B12 */ - info->sector_size = (ata_identify_data[117] | (ata_identify_data[118] << 16)) * 2; + if ((identify_info[106] & 0xd000) == 0x5000) /* B14, B12 */ + info->sector_size = (identify_info[117] | (identify_info[118] << 16)) * 2; else info->sector_size = SECTOR_SIZE; @@ -1172,13 +1147,19 @@ int ata_init(void) ata_powered = false; ata_total_sectors = 0; - /* get ata_identify_data */ + /* get identify_info */ mutex_lock(&ata_mutex); int rc = ata_power_up(); mutex_unlock(&ata_mutex); if (IS_ERR(rc)) return rc; +#ifdef MAX_PHYS_SECTOR_SIZE + rc = ata_get_phys_sector_mult(); + if (IS_ERR(rc)) + return rc; +#endif + return 0; } @@ -1194,7 +1175,7 @@ static int ata_smart(uint16_t* buf) ceata_taskfile[0xe] = BIT(6); ceata_taskfile[0xf] = CMD_SMART; PASS_RC(ceata_wait_idle(), 3, 1); - if (((uint8_t*)ata_identify_data)[54] != 'A') /* Model != aAmsung */ + if (((uint8_t*)identify_info)[54] != 'A') /* Model != aAmsung */ { ceata_taskfile[0x9] = 0xd8; /* SMART enable operations */ PASS_RC(ceata_write_multiple_register(0, ceata_taskfile, 16), 3, 2); @@ -1242,7 +1223,7 @@ static int ata_num_drives(int first_drive) unsigned short* ata_get_identify(void) { - return ata_identify_data; + return identify_info; } int ata_spinup_time(void) -- cgit v1.2.3