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SD card CSD and CID registers

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This commit is contained in:
Polprzewodnikowy 2022-09-14 00:07:47 +02:00
parent ceed43c324
commit 612fc5bec5
9 changed files with 230 additions and 127 deletions
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4
sw/bootloader/src/fatfs/diskio.c
View File

@ -46,10 +46,8 @@ DRESULT disk_read (BYTE pdrv, BYTE *buff, LBA_t sector, UINT count) {
}
if (((uint32_t) (buff) % 8) == 0) {
pi_dma_read((io32_t *) (SC64_BUFFERS->BUFFER), buff, length);
cache_data_hit_invalidate(buff, length);
} else {
pi_dma_read((io32_t *) (SC64_BUFFERS->BUFFER), aligned_buffer, length);
cache_data_hit_invalidate(aligned_buffer, length);
memcpy(buff, aligned_buffer, length);
}
buff += length;
@ -76,11 +74,9 @@ DRESULT disk_write (BYTE pdrv, const BYTE* buff, LBA_t sector, UINT count) {
uint32_t blocks = ((count > BUFFER_BLOCKS_MAX) ? BUFFER_BLOCKS_MAX : count);
size_t length = (blocks * SD_BLOCK_SIZE);
if (((uint32_t) (buff) % 8) == 0) {
cache_data_hit_writeback((void *) (buff), length);
pi_dma_write((io32_t *) (SC64_BUFFERS->BUFFER), (void *) (buff), length);
} else {
memcpy(aligned_buffer, buff, length);
cache_data_hit_writeback(aligned_buffer, length);
pi_dma_write((io32_t *) (SC64_BUFFERS->BUFFER), aligned_buffer, length);
}
if (sc64_sd_write_sectors((uint32_t *) (SC64_BUFFERS->BUFFER), sector, blocks)) {

50
sw/bootloader/src/io.c
View File

@ -1,6 +1,30 @@
#include "io.h"
static void cache_operation (uint8_t operation, uint8_t line_size, void *address, size_t length) {
uint32_t cache_address = (((uint32_t) (address)) & (~(line_size - 1)));
while (cache_address < ((uint32_t) (address) + length)) {
asm volatile (
"cache %[operation], (%[cache_address]) \n" ::
[operation] "i" (operation),
[cache_address] "r" (cache_address)
);
cache_address += line_size;
}
}
void cache_data_hit_invalidate (void *address, size_t length) {
cache_operation(0x11, 16, address, length);
}
void cache_data_hit_writeback (void *address, size_t length) {
cache_operation(0x19, 16, address, length);
}
void cache_inst_hit_invalidate (void *address, size_t length) {
cache_operation(0x10, 32, address, length);
}
uint32_t io_read (io32_t *address) {
io32_t *uncached = UNCACHED(address);
uint32_t value = *uncached;
@ -30,9 +54,11 @@ void pi_dma_read (io32_t *address, void *buffer, size_t length) {
io_write(&PI->MADDR, (uint32_t) (PHYSICAL(buffer)));
io_write(&PI->WDMA, length - 1);
while (pi_busy());
cache_data_hit_invalidate(buffer, length);
}
void pi_dma_write (io32_t *address, void *buffer, size_t length) {
cache_data_hit_writeback(buffer, length);
io_write(&PI->PADDR, (uint32_t) (PHYSICAL(address)));
io_write(&PI->MADDR, (uint32_t) (PHYSICAL(buffer)));
io_write(&PI->RDMA, length - 1);
@ -51,27 +77,3 @@ void si_io_write (io32_t *address, uint32_t value) {
io_write(address, value);
while (si_busy());
}
static void cache_operation (uint8_t operation, uint8_t line_size, void *address, size_t length) {
uint32_t cache_address = (((uint32_t) (address)) & (~(line_size - 1)));
while (cache_address < ((uint32_t) (address) + length)) {
asm volatile (
"cache %[operation], (%[cache_address]) \n" ::
[operation] "i" (operation),
[cache_address] "r" (cache_address)
);
cache_address += line_size;
}
}
void cache_data_hit_invalidate (void *address, size_t length) {
cache_operation(0x11, 16, address, length);
}
void cache_data_hit_writeback (void *address, size_t length) {
cache_operation(0x19, 16, address, length);
}
void cache_inst_hit_invalidate (void *address, size_t length) {
cache_operation(0x10, 32, address, length);
}

34
sw/bootloader/src/sc64.c
View File

@ -15,12 +15,19 @@ typedef enum {
SC64_CMD_USB_WRITE = 'M',
SC64_CMD_USB_READ_STATUS = 'u',
SC64_CMD_USB_READ = 'm',
SC64_CMD_SD_CARD_INIT = 'i',
SC64_CMD_SD_CARD_OP = 'i',
SC64_CMD_SD_SECTOR_SET = 'I',
SC64_CMD_SD_WRITE = 'S',
SC64_CMD_SD_READ = 's',
} cmd_id_t;
typedef enum {
SD_CARD_OP_DEINIT = 0,
SD_CARD_OP_INIT = 1,
SD_CARD_OP_GET_STATUS = 2,
SD_CARD_OP_GET_INFO = 3,
} sd_card_op_t;
static bool sc64_wait_cpu_busy (void) {
uint32_t sr;
@ -142,16 +149,33 @@ bool sc64_usb_read (uint32_t *address, uint32_t length) {
}
bool sc64_sd_card_init (void) {
uint32_t args[2] = { 0, true };
if (sc64_execute_cmd(SC64_CMD_SD_CARD_INIT, args, NULL)) {
uint32_t args[2] = { 0, SD_CARD_OP_INIT };
if (sc64_execute_cmd(SC64_CMD_SD_CARD_OP, args, NULL)) {
return true;
}
return false;
}
bool sc64_sd_card_deinit (void) {
uint32_t args[2] = { 0, false };
if (sc64_execute_cmd(SC64_CMD_SD_CARD_INIT, args, NULL)) {
uint32_t args[2] = { 0, SD_CARD_OP_DEINIT };
if (sc64_execute_cmd(SC64_CMD_SD_CARD_OP, args, NULL)) {
return true;
}
return false;
}
bool sc64_sd_card_get_status (void) {
uint32_t args[2] = { 0, SD_CARD_OP_GET_STATUS };
uint32_t result[2];
if (sc64_execute_cmd(SC64_CMD_SD_CARD_OP, args, result)) {
return false;
}
return result[1];
}
bool sc64_sd_card_get_info (uint32_t *address) {
uint32_t args[2] = { (uint32_t) (address), SD_CARD_OP_GET_INFO };
if (sc64_execute_cmd(SC64_CMD_SD_CARD_OP, args, NULL)) {
return true;
}
return false;

2
sw/bootloader/src/sc64.h
View File

@ -105,6 +105,8 @@ bool sc64_usb_read_ready (uint8_t *type, uint32_t *length);
bool sc64_usb_read (uint32_t *address, uint32_t length);
bool sc64_sd_card_init (void);
bool sc64_sd_card_deinit (void);
bool sc64_sd_card_get_status (void);
bool sc64_sd_card_get_info (uint32_t *address);
bool sc64_sd_write_sectors (uint32_t *address, uint32_t sector, uint32_t count);
bool sc64_sd_read_sectors (uint32_t *address, uint32_t sector, uint32_t count);

26
sw/bootloader/src/test.c
View File

@ -1,5 +1,6 @@
#include <stddef.h>
#include "display.h"
#include "io.h"
#include "sc64.h"
#include "test.h"
@ -14,9 +15,30 @@ bool test_check (void) {
void test_execute (void) {
display_init(NULL);
display_printf("SC64 Test suite\n");
display_printf("SC64 Test suite\n\n");
// TODO: implement tests
if (sc64_sd_card_init()) {
display_printf("SD card init error!\n");
while (1);
}
if (sc64_sd_card_get_info((uint32_t *) (SC64_BUFFERS->BUFFER))) {
display_printf("SD card get info error!\n");
while (1);
}
uint8_t card_info[32] __attribute__((aligned(8)));
pi_dma_read((io32_t *) (SC64_BUFFERS->BUFFER), card_info, sizeof(card_info));
display_printf("CSD: 0x");
for (int i = 0; i < 16; i++) {
display_printf("%02X", card_info[i]);
}
display_printf("\nCID: 0x");
for (int i = 16; i < 32; i++) {
display_printf("%02X", card_info[i]);
}
while (1);
}

48
sw/controller/src/cfg.c
View File

@ -63,10 +63,11 @@ typedef enum {
typedef enum {
CFG_ERROR_OK = 0,
CFG_ERROR_BAD_ADDRESS = 1,
CFG_ERROR_BAD_CONFIG_ID = 2,
CFG_ERROR_TIMEOUT = 3,
CFG_ERROR_SD = 4,
CFG_ERROR_BAD_ARGUMENT = 1,
CFG_ERROR_BAD_ADDRESS = 2,
CFG_ERROR_BAD_CONFIG_ID = 3,
CFG_ERROR_TIMEOUT = 4,
CFG_ERROR_SD_CARD = 5,
CFG_ERROR_UNKNOWN_CMD = -1,
} cfg_error_t;
@ -392,12 +393,33 @@ void cfg_process (void) {
break;
case 'i':
if (args[1]) {
if (sd_card_init()) {
cfg_set_error(CFG_ERROR_SD);
}
} else {
sd_card_deinit();
switch (args[1]) {
case 0:
sd_card_deinit();
break;
case 1:
if (sd_card_init()) {
cfg_set_error(CFG_ERROR_SD_CARD);
return;
}
break;
case 2:
args[1] = sd_card_get_status();
break;
case 3:
args[1] = 32;
if (cfg_translate_address(args)) {
cfg_set_error(CFG_ERROR_BAD_ADDRESS);
return;
}
if (sd_card_get_info(args[0])) {
cfg_set_error(CFG_ERROR_SD_CARD);
return;
}
break;
default:
cfg_set_error(CFG_ERROR_BAD_ARGUMENT);
return;
}
break;
@ -411,7 +433,8 @@ void cfg_process (void) {
return;
}
if (sd_read_sectors(args[0], p.sd_card_sector, args[1])) {
cfg_set_error(CFG_ERROR_SD);
cfg_set_error(CFG_ERROR_SD_CARD);
return;
}
break;
@ -421,7 +444,8 @@ void cfg_process (void) {
return;
}
if (sd_write_sectors(args[0], p.sd_card_sector, args[1])) {
cfg_set_error(CFG_ERROR_SD);
cfg_set_error(CFG_ERROR_SD_CARD);
return;
}
break;

4
sw/controller/src/fpga.h
View File

@ -55,8 +55,8 @@ typedef enum {
} fpga_reg_t;
#define SWAP16(x) (((x & 0xFF) << 8) | ((x & 0xFF00) >> 8))
#define SWAP32(x) ((x & 0xFF) << 24 | (x & 0xFF00) << 8 | (x & 0xFF0000) >> 8 | (x & 0xFF000000) >> 24)
#define SWAP16(x) ((((x) & 0xFF) << 8) | (((x) & 0xFF00) >> 8))
#define SWAP32(x) (((x) & 0xFF) << 24 | ((x) & 0xFF00) << 8 | ((x) & 0xFF0000) >> 8 | ((x) & 0xFF000000) >> 24)
#define FPGA_ID (0x64)

183
sw/controller/src/sd.c
View File

@ -16,10 +16,10 @@
#define ACMD6_ARG_BUS_WIDTH_4BIT (2 << 0)
#define ACMD41_ARG_OCR (0xFF8000 << 0)
#define ACMD41_ARG_OCR (0x300000 << 0)
#define ACMD41_ARG_HCS (1 << 30)
#define R3_OCR (0xFF8000 << 0)
#define R3_OCR (0x300000 << 0)
#define R3_CCS (1 << 30)
#define R3_BUSY (1 << 31)
@ -59,6 +59,8 @@ struct process {
bool card_initialized;
bool card_type_block;
uint32_t rca;
uint8_t csd[16];
uint8_t cid[16];
volatile bool timeout;
};
@ -129,14 +131,18 @@ static bool sd_cmd (uint8_t cmd, uint32_t arg, rsp_type_t rsp_type, void *rsp) {
} while (scr & SD_SCR_CMD_BUSY);
if (rsp != NULL) {
bool rsp_long = (cmd_data & SD_CMD_LONG_RESPONSE);
uint8_t *rsp_8 = (uint8_t *) (rsp);
for (int i = 0; i < (rsp_long ? 4 : 1); i++) {
uint32_t rsp_data = fpga_reg_get(REG_SD_RSP_0 + i);
uint8_t *rsp_data_8 = (uint8_t *) (&rsp_data);
if (cmd_data & SD_CMD_LONG_RESPONSE) {
uint8_t *rsp_8 = (uint8_t *) (rsp);
for (int i = 0; i < 4; i++) {
*rsp_8++ = *rsp_data_8++;
uint32_t rsp_data = fpga_reg_get(REG_SD_RSP_3 - i);
uint8_t *rsp_data_8 = (uint8_t *) (&rsp_data);
rsp_data = SWAP32(rsp_data);
for (int i = 0; i < 4; i++) {
*rsp_8++ = *rsp_data_8++;
}
}
} else {
(*(uint32_t *) (rsp)) = fpga_reg_get(REG_SD_RSP_0);
}
}
@ -200,74 +206,6 @@ static bool sd_dat_wait (uint16_t timeout) {
}
bool sd_read_sectors (uint32_t address, uint32_t sector, uint32_t count) {
if (!p.card_initialized || (count == 0)) {
return true;
}
if (!p.card_type_block) {
sector *= SD_BLOCK_SIZE;
}
while (count > 0) {
uint32_t blocks = ((count > DAT_BLOCK_MAX_COUNT) ? DAT_BLOCK_MAX_COUNT : count);
led_blink_act();
sd_dat_prepare(address, blocks, DAT_READ);
if (sd_cmd(23, blocks, RSP_R1, NULL)) {
sd_dat_abort();
return true;
}
if (sd_cmd(18, sector, RSP_R1, NULL)) {
sd_dat_abort();
return true;
}
if (sd_dat_wait(1000)) {
if (sd_did_timeout()) {
sd_cmd(12, 0, RSP_R1b, NULL);
}
return true;
}
address += (blocks * SD_BLOCK_SIZE);
sector += (blocks * (p.card_type_block ? 1 : SD_BLOCK_SIZE));
count -= blocks;
}
return false;
}
bool sd_write_sectors (uint32_t address, uint32_t sector, uint32_t count) {
if (!p.card_initialized || (count == 0)) {
return true;
}
if (!p.card_type_block) {
sector *= SD_BLOCK_SIZE;
}
while (count > 0) {
uint32_t blocks = ((count > DAT_BLOCK_MAX_COUNT) ? DAT_BLOCK_MAX_COUNT : count);
led_blink_act();
if (sd_cmd(23, blocks, RSP_R1, NULL)) {
return true;
}
if (sd_cmd(25, sector, RSP_R1, NULL)) {
return true;
}
sd_dat_prepare(address, blocks, DAT_WRITE);
bool error = sd_dat_wait(1000);
sd_cmd(12, 0, RSP_R1b, NULL);
if (error) {
sd_dat_abort();
return true;
}
address += (blocks * SD_BLOCK_SIZE);
sector += (blocks * (p.card_type_block ? 1 : SD_BLOCK_SIZE));
count -= blocks;
}
return false;
}
bool sd_card_init (void) {
uint32_t arg;
uint32_t rsp;
@ -329,6 +267,16 @@ bool sd_card_init (void) {
}
p.rca = (rsp & R6_RCA_MASK);
if (sd_cmd(9, p.rca, RSP_R2, p.csd)) {
sd_card_deinit();
return true;
}
if (sd_cmd(10, p.rca, RSP_R2, p.cid)) {
sd_card_deinit();
return true;
}
if (sd_cmd(7, p.rca, RSP_R1b, NULL)) {
sd_card_deinit();
return true;
@ -383,6 +331,89 @@ void sd_card_deinit (void) {
}
}
bool sd_card_get_status (void) {
return p.card_initialized;
}
bool sd_card_get_info (uint32_t address) {
if (!p.card_initialized) {
return true;
}
fpga_mem_write(address, sizeof(p.csd), p.csd);
address += sizeof(p.csd);
fpga_mem_write(address, sizeof(p.cid), p.cid);
address += sizeof(p.cid);
return false;
}
bool sd_write_sectors (uint32_t address, uint32_t sector, uint32_t count) {
if (!p.card_initialized || (count == 0)) {
return true;
}
if (!p.card_type_block) {
sector *= SD_BLOCK_SIZE;
}
while (count > 0) {
uint32_t blocks = ((count > DAT_BLOCK_MAX_COUNT) ? DAT_BLOCK_MAX_COUNT : count);
led_blink_act();
if (sd_cmd(23, blocks, RSP_R1, NULL)) {
return true;
}
if (sd_cmd(25, sector, RSP_R1, NULL)) {
return true;
}
sd_dat_prepare(address, blocks, DAT_WRITE);
bool error = sd_dat_wait(1000);
sd_cmd(12, 0, RSP_R1b, NULL);
if (error) {
sd_dat_abort();
return true;
}
address += (blocks * SD_BLOCK_SIZE);
sector += (blocks * (p.card_type_block ? 1 : SD_BLOCK_SIZE));
count -= blocks;
}
return false;
}
bool sd_read_sectors (uint32_t address, uint32_t sector, uint32_t count) {
if (!p.card_initialized || (count == 0)) {
return true;
}
if (!p.card_type_block) {
sector *= SD_BLOCK_SIZE;
}
while (count > 0) {
uint32_t blocks = ((count > DAT_BLOCK_MAX_COUNT) ? DAT_BLOCK_MAX_COUNT : count);
led_blink_act();
sd_dat_prepare(address, blocks, DAT_READ);
if (sd_cmd(23, blocks, RSP_R1, NULL)) {
sd_dat_abort();
return true;
}
if (sd_cmd(18, sector, RSP_R1, NULL)) {
sd_dat_abort();
return true;
}
if (sd_dat_wait(1000)) {
if (sd_did_timeout()) {
sd_cmd(12, 0, RSP_R1b, NULL);
}
return true;
}
address += (blocks * SD_BLOCK_SIZE);
sector += (blocks * (p.card_type_block ? 1 : SD_BLOCK_SIZE));
count -= blocks;
}
return false;
}
void sd_init (void) {
p.card_initialized = false;
sd_set_clock(CLOCK_STOP);

6
sw/controller/src/sd.h
View File

@ -5,10 +5,12 @@
#include <stdbool.h>
bool sd_read_sectors (uint32_t address, uint32_t sector, uint32_t count);
bool sd_write_sectors (uint32_t address, uint32_t sector, uint32_t count);
bool sd_card_init (void);
void sd_card_deinit (void);
bool sd_card_get_status (void);
bool sd_card_get_info (uint32_t address);
bool sd_write_sectors (uint32_t address, uint32_t sector, uint32_t count);
bool sd_read_sectors (uint32_t address, uint32_t sector, uint32_t count);
void sd_init (void);
void sd_process (void);