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Support SDT for GPIO expander #2

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Support SDT for GPIO expander #2

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e136394
support SDT for GPIO expander initialization
nhw76 Mar 11, 2026
cf43d5d
Update xfsbl_board.c
nhw76 Mar 11, 2026
52238d2
Update xfsbl_board.c
nhw76 Mar 11, 2026
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22 changes: 15 additions & 7 deletions lib/sw_apps/zynqmp_fsbl/src/xfsbl_board.c
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Original file line number Diff line number Diff line change
Expand Up @@ -820,12 +820,24 @@ static void XFsbl_PcieReset(void)
*/
static u32 InitGpios()
{
#if defined(XPAR_PSU_SPI_0_DEVICE_ID) && defined (XPAR_PSU_GPIO_0_DEVICE_ID)
XGpioPs_Config* gpio_conf;
u32 spi_dev_id;
u32 RegVal;
XStatus Status;
XGpioPs_Config* gpio_conf;
XGpioPs gpio_inst;

#if defined(SDT) && defined(XPAR_XGPIOPS_0_BASEADDR) && defined(XPAR_SPI0_BASEADDR)
gpio_conf = XGpioPs_LookupConfig(XPAR_XGPIOPS_0_BASEADDR);
spi_dev_id = XPAR_SPI0_BASEADDR;
#elif defined(XPAR_PSU_GPIO_0_DEVICE_ID) && defined(XPAR_PSU_SPI_0_DEVICE_ID)
gpio_conf = XGpioPs_LookupConfig(XPAR_PSU_GPIO_0_DEVICE_ID);
spi_dev_id = XPAR_PSU_SPI_0_DEVICE_ID;
#else
/* fail fast if either PS GPIO0 or PS SPI0 are missing in the BSP */
XFsbl_Printf(DEBUG_GENERAL, "XFSBL_GZU_NOSPI0_NOGPIO0\r\n");
return XST_FAILURE;
#endif

gpio_conf = XGpioPs_LookupConfig(XPAR_PSU_GPIO_0_DEVICE_ID);
if (NULL == gpio_conf) {
XFsbl_Printf(DEBUG_GENERAL, "XFSBL_GZU_GPIO_FAIL\r\n");
Expand All @@ -846,7 +858,7 @@ static u32 InitGpios()
(void)usleep(1);

//Init GPIO Expander
if (XST_SUCCESS != (Status = SpiGpioInit(MCP23S08_SPI_DEVID, MCP23S08_SS_ID)))
if (XST_SUCCESS != (Status = SpiGpioInit(spi_dev_id, MCP23S08_SS_ID)))
{
XFsbl_Printf(DEBUG_GENERAL, "XFSBL_GZU_GPIOE_INITFAIL\r\n");
return XST_FAILURE;
Expand Down Expand Up @@ -891,10 +903,6 @@ static u32 InitGpios()
}

return XST_SUCCESS;
#else
XFsbl_Printf(DEBUG_GENERAL, "XFSBL_GZU_NOSPI0_NOGPIO0\r\n");
return XST_FAILURE;
#endif
}
#endif

Expand Down