diff options
Diffstat (limited to 'hw/sd/sd.c')
| -rw-r--r-- | hw/sd/sd.c | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/hw/sd/sd.c b/hw/sd/sd.c index d98952a12f..2246213b31 100644 --- a/hw/sd/sd.c +++ b/hw/sd/sd.c @@ -124,6 +124,13 @@ struct SDState { uint16_t rca; uint32_t card_status; uint8_t sd_status[64]; + union { + uint8_t ext_csd[512]; + struct { + uint8_t ext_csd_rw[192]; /* Modes segment */ + uint8_t ext_csd_ro[320]; /* Properties segment */ + }; + }; /* Static properties */ @@ -476,6 +483,36 @@ static const uint8_t sd_csd_rw_mask[16] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfc, 0xfe, }; +static void emmc_set_ext_csd(SDState *sd, uint64_t size) +{ + uint32_t sectcount = size >> HWBLOCK_SHIFT; + + memset(sd->ext_csd, 0, sizeof(sd->ext_csd)); /* FIXME only RW at reset */ + + /* Properties segment (RO) */ + sd->ext_csd[EXT_CSD_S_CMD_SET] = 0b1; /* supported command sets */ + sd->ext_csd[EXT_CSD_BOOT_INFO] = 0x0; /* Boot information */ + sd->ext_csd[EXT_CSD_BOOT_MULT] = 0x8; /* Boot partition size. 128KB unit */ + sd->ext_csd[EXT_CSD_ACC_SIZE] = 0x1; /* Access size */ + sd->ext_csd[EXT_CSD_HC_ERASE_GRP_SIZE] = 0x01; /* HC Erase unit size */ + sd->ext_csd[EXT_CSD_ERASE_TIMEOUT_MULT] = 0x01; /* HC erase timeout */ + sd->ext_csd[EXT_CSD_REL_WR_SEC_C] = 0x1; /* Reliable write sector count */ + sd->ext_csd[EXT_CSD_HC_WP_GRP_SIZE] = 0x01; /* HC write protect group size */ + sd->ext_csd[EXT_CSD_S_C_VCC] = 0x01; /* Sleep current VCC */ + sd->ext_csd[EXT_CSD_S_C_VCCQ] = 0x01; /* Sleep current VCCQ */ + sd->ext_csd[EXT_CSD_S_A_TIMEOUT] = 0x01; /* Sleep/Awake timeout */ + stl_le_p(&sd->ext_csd[EXT_CSD_SEC_CNT], sectcount); /* Sector count */ + sd->ext_csd[210] = 0x46; /* Min write perf for 8bit@52Mhz */ + sd->ext_csd[209] = 0x46; /* Min read perf for 8bit@52Mhz */ + sd->ext_csd[208] = 0x46; /* Min write perf for 4bit@52Mhz */ + sd->ext_csd[207] = 0x46; /* Min read perf for 4bit@52Mhz */ + sd->ext_csd[206] = 0x46; /* Min write perf for 4bit@26Mhz */ + sd->ext_csd[205] = 0x46; /* Min read perf for 4bit@26Mhz */ + sd->ext_csd[EXT_CSD_CARD_TYPE] = 0b11; + sd->ext_csd[EXT_CSD_STRUCTURE] = 2; + sd->ext_csd[EXT_CSD_REV] = 3; +} + static void emmc_set_csd(SDState *sd, uint64_t size) { int hwblock_shift = HWBLOCK_SHIFT; @@ -512,6 +549,7 @@ static void emmc_set_csd(SDState *sd, uint64_t size) ((hwblock_shift << 6) & 0xc0); sd->csd[14] = 0x00; sd->csd[15] = (sd_crc7(sd->csd, 15) << 1) | 1; + emmc_set_ext_csd(sd, size); } static void sd_set_csd(SDState *sd, uint64_t size) @@ -847,6 +885,24 @@ static const VMStateDescription sd_ocr_vmstate = { }, }; +static bool vmstate_needed_for_emmc(void *opaque) +{ + SDState *sd = opaque; + + return sd_is_emmc(sd); +} + +static const VMStateDescription emmc_extcsd_vmstate = { + .name = "sd-card/ext_csd_modes-state", + .version_id = 1, + .minimum_version_id = 1, + .needed = vmstate_needed_for_emmc, + .fields = (const VMStateField[]) { + VMSTATE_UINT8_ARRAY(ext_csd_rw, SDState, 192), + VMSTATE_END_OF_LIST() + }, +}; + static int sd_vmstate_pre_load(void *opaque) { SDState *sd = opaque; @@ -894,6 +950,7 @@ static const VMStateDescription sd_vmstate = { }, .subsections = (const VMStateDescription * const []) { &sd_ocr_vmstate, + &emmc_extcsd_vmstate, NULL }, }; @@ -1405,6 +1462,17 @@ static sd_rsp_type_t sd_cmd_SEND_IF_COND(SDState *sd, SDRequest req) return sd_r7; } +/* CMD8 */ +static sd_rsp_type_t emmc_cmd_SEND_EXT_CSD(SDState *sd, SDRequest req) +{ + if (sd->state != sd_transfer_state) { + return sd_invalid_state_for_cmd(sd, req); + } + + return sd_cmd_to_sendingdata(sd, req, sd_req_get_address(sd, req), + sd->ext_csd, sizeof(sd->ext_csd)); +} + /* CMD9 */ static sd_rsp_type_t spi_cmd_SEND_CSD(SDState *sd, SDRequest req) { @@ -2334,6 +2402,7 @@ uint8_t sd_read_byte(SDState *sd) sd->data_offset, sd->data_size, io_len); switch (sd->current_cmd) { case 6: /* CMD6: SWITCH_FUNCTION */ + case 8: /* CMD8: SEND_EXT_CSD */ case 9: /* CMD9: SEND_CSD */ case 10: /* CMD10: SEND_CID */ case 13: /* ACMD13: SD_STATUS */ @@ -2511,6 +2580,7 @@ static const SDProto sd_proto_emmc = { [4] = {0, sd_bc, "SEND_DSR", sd_cmd_unimplemented}, [5] = {0, sd_ac, "SLEEP/AWAKE", emmc_cmd_sleep_awake}, [7] = {0, sd_ac, "(DE)SELECT_CARD", sd_cmd_DE_SELECT_CARD}, + [8] = {0, sd_adtc, "SEND_EXT_CSD", emmc_cmd_SEND_EXT_CSD}, [9] = {0, sd_ac, "SEND_CSD", sd_cmd_SEND_CSD}, [10] = {0, sd_ac, "SEND_CID", sd_cmd_SEND_CID}, [11] = {1, sd_adtc, "READ_DAT_UNTIL_STOP", sd_cmd_unimplemented}, |