gowin: add MSPI support when GW2A
This commit is contained in:
Gwenhael Goavec-Merou
parent
f5b89bff68
commit
fe259fb78d
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@ -57,7 +57,7 @@ Gowin:
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- GW2A-18C
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URL: https://www.gowinsemi.com/en/product/detail/2/
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Memory: OK
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Flash: IF
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Flash: IF / EF
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Intel:
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200
src/gowin.cpp
200
src/gowin.cpp
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@ -77,7 +77,8 @@ using namespace std;
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Gowin::Gowin(Jtag *jtag, const string filename, const string &file_type, std::string mcufw,
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Device::prog_type_t prg_type, bool external_flash,
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bool verify, int8_t verbose): Device(jtag, filename, file_type,
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verify, verbose), is_gw1n1(false), _external_flash(external_flash),
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verify, verbose), is_gw1n1(false), is_gw2a(false),
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_external_flash(external_flash),
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_spi_sck(BSCAN_SPI_SCK), _spi_cs(BSCAN_SPI_CS),
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_spi_di(BSCAN_SPI_DI), _spi_do(BSCAN_SPI_DO),
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_spi_msk(BSCAN_SPI_MSK)
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@ -158,6 +159,7 @@ Gowin::Gowin(Jtag *jtag, const string filename, const string &file_type, std::st
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_external_flash = true;
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/* FIXME: implement GW2 checksum calculation */
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skip_checksum = true;
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is_gw2a = true;
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};
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if (mcufw.size() > 0) {
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@ -278,7 +280,12 @@ void Gowin::program(unsigned int offset, bool unprotect_flash)
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wr_rd(XFER_DONE, NULL, 0, NULL, 0);
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wr_rd(NOOP, NULL, 0, NULL, 0);
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wr_rd(0x3D, NULL, 0, NULL, 0);
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if (!is_gw2a) {
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wr_rd(0x3D, NULL, 0, NULL, 0);
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} else {
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DisableCfg();
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wr_rd(NOOP, NULL, 0, NULL, 0);
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}
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SPIFlash spiFlash(this, unprotect_flash,
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(_verbose ? 1 : (_quiet ? -1 : 0)));
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@ -290,8 +297,10 @@ void Gowin::program(unsigned int offset, bool unprotect_flash)
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if (_verify)
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if (!spiFlash.verify(offset, data, length / 8, 256))
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throw std::runtime_error("Error: flash vefication failed");
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if (!DisableCfg())
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throw std::runtime_error("Error: fail to disable configuration");
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if (!is_gw2a) {
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if (!DisableCfg())
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throw std::runtime_error("Error: fail to disable configuration");
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}
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reset();
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}
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@ -707,92 +716,139 @@ int Gowin::spi_put(uint8_t cmd, uint8_t *tx, uint8_t *rx, uint32_t len)
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int Gowin::spi_put(uint8_t *tx, uint8_t *rx, uint32_t len)
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{
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/* set CS/SCK/DI low */
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uint8_t t = _spi_msk | _spi_do;
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t &= ~_spi_cs;
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spi_gowin_write(&t, NULL, 8);
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_jtag->flush();
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/* send bit/bit full tx content (or set di to 0 when NULL) */
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for (uint32_t i = 0; i < len * 8; i++) {
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uint8_t r;
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t = _spi_msk | _spi_do;
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if (tx != NULL && tx[i>>3] & (1 << (7-(i&0x07))))
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t |= _spi_di;
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spi_gowin_write(&t, NULL, 8);
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t |= _spi_sck;
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spi_gowin_write(&t, (rx) ? &r : NULL, 8);
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_jtag->flush();
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/* if read reconstruct bytes */
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if (rx) {
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if (r & _spi_do)
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rx[i >> 3] |= 1 << (7-(i & 0x07));
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else
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rx[i >> 3] &= ~(1 << (7-(i & 0x07)));
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if (is_gw2a) {
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uint8_t jtx[len];
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uint8_t jrx[len];
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if (rx)
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len++;
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if (tx != NULL) {
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for (uint32_t i = 0; i < len; i++)
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jtx[i] = FsParser::reverseByte(tx[i]);
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}
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}
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/* set CS and unset SCK (next xfer) */
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t &= ~_spi_sck;
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t |= _spi_cs;
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spi_gowin_write(&t, NULL, 8);
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_jtag->flush();
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bool ret = wr_rd(0x16, NULL, 0, NULL, 0, false);
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if (!ret)
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return -1;
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_jtag->set_state(Jtag::EXIT2_DR);
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ret = _jtag->shiftDR(jtx, (rx)? jrx:NULL, 8*len);
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if (rx) {
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for (uint32_t i=0; i < len; i++) {
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rx[i] = FsParser::reverseByte(jrx[i]>>1) |
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(jrx[i+1]&0x01);
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}
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}
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} else {
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/* set CS/SCK/DI low */
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uint8_t t = _spi_msk | _spi_do;
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t &= ~_spi_cs;
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spi_gowin_write(&t, NULL, 8);
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_jtag->flush();
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/* send bit/bit full tx content (or set di to 0 when NULL) */
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for (uint32_t i = 0; i < len * 8; i++) {
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uint8_t r;
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t = _spi_msk | _spi_do;
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if (tx != NULL && tx[i>>3] & (1 << (7-(i&0x07))))
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t |= _spi_di;
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spi_gowin_write(&t, NULL, 8);
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t |= _spi_sck;
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spi_gowin_write(&t, (rx) ? &r : NULL, 8);
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_jtag->flush();
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/* if read reconstruct bytes */
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if (rx) {
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if (r & _spi_do)
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rx[i >> 3] |= 1 << (7-(i & 0x07));
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else
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rx[i >> 3] &= ~(1 << (7-(i & 0x07)));
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}
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}
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/* set CS and unset SCK (next xfer) */
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t &= ~_spi_sck;
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t |= _spi_cs;
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spi_gowin_write(&t, NULL, 8);
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_jtag->flush();
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}
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return 0;
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}
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int Gowin::spi_wait(uint8_t cmd, uint8_t mask, uint8_t cond,
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uint32_t timeout, bool verbose)
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{
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uint8_t tmp;
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uint32_t count = 0;
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uint8_t rx, t;
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/* set CS/SCK/DI low */
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t = _spi_msk | _spi_do;
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spi_gowin_write(&t, NULL, 8);
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if (is_gw2a) {
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uint8_t rx[3];
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uint8_t tx[3];
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tx[0] = FsParser::reverseByte(cmd);
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/* send command bit/bit */
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for (int i = 0; i < 8; i++) {
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do {
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bool ret = wr_rd(0x16, NULL, 0, NULL, 0, false);
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if (!ret)
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return -1;
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_jtag->set_state(Jtag::EXIT2_DR);
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ret = _jtag->shiftDR(tx, rx, 8 * 3);
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tmp = (FsParser::reverseByte(rx[1]>>1)) | (0x01 & rx[2]);
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count ++;
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if (count == timeout) {
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printf("timeout: %x %x %x\n", tmp, rx[0], rx[1]);
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break;
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}
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if (verbose) {
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printf("%x %x %x %u\n", tmp, mask, cond, count);
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}
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} while ((tmp & mask) != cond);
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} else {
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uint8_t t;
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/* set CS/SCK/DI low */
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t = _spi_msk | _spi_do;
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if ((cmd & (1 << (7-i))) != 0)
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t |= _spi_di;
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spi_gowin_write(&t, NULL, 8);
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t |= _spi_sck;
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/* send command bit/bit */
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for (int i = 0; i < 8; i++) {
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t = _spi_msk | _spi_do;
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if ((cmd & (1 << (7-i))) != 0)
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t |= _spi_di;
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spi_gowin_write(&t, NULL, 8);
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t |= _spi_sck;
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spi_gowin_write(&t, NULL, 8);
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_jtag->flush();
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}
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t = _spi_msk | _spi_do;
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do {
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tmp = 0;
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/* read status register bit/bit with di == 0 */
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for (int i = 0; i < 8; i++) {
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uint8_t r;
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t &= ~_spi_sck;
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spi_gowin_write(&t, NULL, 8);
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t |= _spi_sck;
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spi_gowin_write(&t, &r, 8);
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_jtag->flush();
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if ((r & _spi_do) != 0)
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tmp |= 1 << (7-i);
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}
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count++;
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if (count == timeout) {
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printf("timeout: %x\n", tmp);
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break;
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}
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if (verbose)
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printf("%x %x %x %u\n", tmp, mask, cond, count);
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} while ((tmp & mask) != cond);
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/* set CS & unset SCK (next xfer) */
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t &= ~_spi_sck;
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t |= _spi_cs;
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spi_gowin_write(&t, NULL, 8);
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_jtag->flush();
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}
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t = _spi_msk | _spi_do;
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do {
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rx = 0;
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/* read status register bit/bit with di == 0 */
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for (int i = 0; i < 8; i++) {
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uint8_t r;
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t &= ~_spi_sck;
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spi_gowin_write(&t, NULL, 8);
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t |= _spi_sck;
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spi_gowin_write(&t, &r, 8);
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_jtag->flush();
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if ((r & _spi_do) != 0)
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rx |= 1 << (7-i);
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}
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count++;
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if (count == timeout) {
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printf("timeout: %x\n", rx);
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break;
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}
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if (verbose)
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printf("%x %x %x %u\n", rx, mask, cond, count);
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} while ((rx & mask) != cond);
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/* set CS & unset SCK (next xfer) */
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t &= ~_spi_sck;
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t |= _spi_cs;
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spi_gowin_write(&t, NULL, 8);
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_jtag->flush();
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if (count == timeout) {
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printf("%02x\n", rx);
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printf("%02x\n", tmp);
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std::cout << "wait: Error" << std::endl;
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return -ETIME;
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}
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@ -55,6 +55,7 @@ class Gowin: public Device, SPIInterface {
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uint32_t readUserCode();
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ConfigBitstreamParser *_fs;
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bool is_gw1n1;
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bool is_gw2a;
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bool skip_checksum;
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bool _external_flash; /**< select between int or ext flash */
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uint8_t _spi_sck; /**< clk signal offset in bscan SPI */
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