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-rw-r--r--src/soc/intel/common/block/include/intelblocks/uart.h3
-rw-r--r--src/soc/intel/common/block/uart/Makefile.inc3
-rw-r--r--src/soc/intel/common/block/uart/uart.c37
3 files changed, 41 insertions, 2 deletions
diff --git a/src/soc/intel/common/block/include/intelblocks/uart.h b/src/soc/intel/common/block/include/intelblocks/uart.h
index ed4c7f0127..b46edd76d7 100644
--- a/src/soc/intel/common/block/include/intelblocks/uart.h
+++ b/src/soc/intel/common/block/include/intelblocks/uart.h
@@ -17,8 +17,11 @@
#define SOC_INTEL_COMMON_BLOCK_UART_H
#include <arch/io.h>
+#include <device/device.h>
void uart_common_init(device_t dev, uintptr_t baseaddr,
uint32_t clk_m_val, uint32_t clk_n_val);
+void pch_uart_read_resources(struct device *dev);
+
#endif /* SOC_INTEL_COMMON_BLOCK_UART_H */
diff --git a/src/soc/intel/common/block/uart/Makefile.inc b/src/soc/intel/common/block/uart/Makefile.inc
index 13f5da880f..0ec5314d66 100644
--- a/src/soc/intel/common/block/uart/Makefile.inc
+++ b/src/soc/intel/common/block/uart/Makefile.inc
@@ -1 +1,2 @@
-bootblock-$(CONFIG_SOC_INTEL_COMMON_BLOCK_UART) += uart.c \ No newline at end of file
+bootblock-$(CONFIG_SOC_INTEL_COMMON_BLOCK_UART) += uart.c
+ramstage-$(CONFIG_SOC_INTEL_COMMON_BLOCK_UART) += uart.c \ No newline at end of file
diff --git a/src/soc/intel/common/block/uart/uart.c b/src/soc/intel/common/block/uart/uart.c
index 729a31ba1e..8c5e4542f6 100644
--- a/src/soc/intel/common/block/uart/uart.c
+++ b/src/soc/intel/common/block/uart/uart.c
@@ -12,8 +12,10 @@
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
-
+#include <device/device.h>
+#include <device/pci.h>
#include <device/pci_def.h>
+#include <device/pci_ids.h>
#include <intelblocks/lpss.h>
#include <intelblocks/uart.h>
@@ -33,3 +35,36 @@ void uart_common_init(device_t dev, uintptr_t baseaddr, uint32_t clk_m_val,
/* Set M and N divisor inputs and enable clock */
lpss_clk_update(baseaddr, clk_m_val, clk_n_val);
}
+
+#if ENV_RAMSTAGE
+
+__attribute__((weak)) void pch_uart_read_resources(struct device *dev)
+{
+ pci_dev_read_resources(dev);
+}
+
+static struct device_operations device_ops = {
+ .read_resources = &pch_uart_read_resources,
+ .set_resources = &pci_dev_set_resources,
+ .enable_resources = &pci_dev_enable_resources,
+};
+
+static const unsigned short pci_device_ids[] = {
+ PCI_DEVICE_ID_INTEL_SPT_UART0,
+ PCI_DEVICE_ID_INTEL_SPT_UART1,
+ PCI_DEVICE_ID_INTEL_SPT_UART2,
+ PCI_DEVICE_ID_INTEL_KBP_H_UART0,
+ PCI_DEVICE_ID_INTEL_KBP_H_UART1,
+ PCI_DEVICE_ID_INTEL_KBP_H_UART2,
+ PCI_DEVICE_ID_INTEL_APL_UART0,
+ PCI_DEVICE_ID_INTEL_APL_UART1,
+ PCI_DEVICE_ID_INTEL_APL_UART2,
+ PCI_DEVICE_ID_INTEL_APL_UART3,
+};
+
+static const struct pci_driver pch_uart __pci_driver = {
+ .ops = &device_ops,
+ .vendor = PCI_VENDOR_ID_INTEL,
+ .devices = pci_device_ids,
+};
+#endif /* ENV_RAMSTAGE */