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utils/mqnic-fw: Determine data width directly from control registers

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Signed-off-by: Alex Forencich <alex@alexforencich.com>
This commit is contained in:
Alex Forencich 2022-04-15 16:15:11 -07:00
parent d9867948ec
commit 09257457cb
1 changed files with 39 additions and 2 deletions
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41
utils/mqnic-fw.c
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@ -683,6 +683,8 @@ int main(int argc, char *argv[])
if ((flash_rb = find_reg_block(dev->rb_list, MQNIC_RB_SPI_FLASH_TYPE, MQNIC_RB_SPI_FLASH_VER, 0)))
{
uint32_t reg_val;
// SPI flash
flash_format = mqnic_reg_read32(flash_rb->regs, MQNIC_RB_SPI_FLASH_REG_FORMAT);
@ -690,7 +692,29 @@ int main(int argc, char *argv[])
printf("Flash format: 0x%08x\n", flash_format);
flash_configuration = flash_format >> 8;
flash_data_width = flash_format >> 16;
// determine data width
flash_data_width = 0;
mqnic_reg_write32(flash_rb->regs, MQNIC_RB_SPI_FLASH_REG_CTRL_0, 0x0002000f);
reg_val = mqnic_reg_read32(flash_rb->regs, MQNIC_RB_SPI_FLASH_REG_CTRL_0) & 0xf;
mqnic_reg_write32(flash_rb->regs, MQNIC_RB_SPI_FLASH_REG_CTRL_0, 0x00020000);
while (reg_val)
{
reg_val >>= 1;
flash_data_width++;
}
mqnic_reg_write32(flash_rb->regs, MQNIC_RB_SPI_FLASH_REG_CTRL_1, 0x0002000f);
reg_val = mqnic_reg_read32(flash_rb->regs, MQNIC_RB_SPI_FLASH_REG_CTRL_1) & 0xf;
mqnic_reg_write32(flash_rb->regs, MQNIC_RB_SPI_FLASH_REG_CTRL_1, 0x00020000);
while (reg_val)
{
reg_val >>= 1;
flash_data_width++;
}
printf("Data width: %d\n", flash_data_width);
@ -725,6 +749,8 @@ int main(int argc, char *argv[])
}
else if ((flash_rb = find_reg_block(dev->rb_list, MQNIC_RB_BPI_FLASH_TYPE, MQNIC_RB_BPI_FLASH_VER, 0)))
{
uint32_t reg_val;
// BPI flash
flash_format = mqnic_reg_read32(flash_rb->regs, MQNIC_RB_BPI_FLASH_REG_FORMAT);
@ -732,7 +758,18 @@ int main(int argc, char *argv[])
printf("Flash format: 0x%08x\n", flash_format);
flash_configuration = flash_format >> 8;
flash_data_width = flash_format >> 16;
// determine data width
mqnic_reg_write32(flash_rb->regs, MQNIC_RB_BPI_FLASH_REG_DATA, 0xffffffff);
reg_val = mqnic_reg_read32(flash_rb->regs, MQNIC_RB_BPI_FLASH_REG_DATA);
mqnic_reg_write32(flash_rb->regs, MQNIC_RB_BPI_FLASH_REG_DATA, 0x00000000);
flash_data_width = 0;
while (reg_val)
{
reg_val >>= 1;
flash_data_width++;
}
printf("Data width: %d\n", flash_data_width);