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path: root/include/hw/pci-host/ls7a.h
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Diffstat (limited to 'include/hw/pci-host/ls7a.h')
-rw-r--r--include/hw/pci-host/ls7a.h17
1 files changed, 9 insertions, 8 deletions
diff --git a/include/hw/pci-host/ls7a.h b/include/hw/pci-host/ls7a.h
index ff4b979..e753449 100644
--- a/include/hw/pci-host/ls7a.h
+++ b/include/hw/pci-host/ls7a.h
@@ -26,24 +26,25 @@
#define VIRT_PCH_MSI_ADDR_LOW 0x2FF00000UL
/*
- * According to the kernel pch irq start from 64 offset
- * 0 ~ 16 irqs used for non-pci device while 16 ~ 64 irqs
- * used for pci device.
+ * GSI_BASE is hard-coded with 64 in linux kernel, else kernel fails to boot
+ * 0 - 15 GSI for ISA devices even if there is no ISA devices
+ * 16 - 63 GSI for CPU devices such as timers/perf monitor etc
+ * 64 - GSI for external devices
*/
#define VIRT_PCH_PIC_IRQ_NUM 32
-#define PCH_PIC_IRQ_OFFSET 64
+#define VIRT_GSI_BASE 64
#define VIRT_DEVICE_IRQS 16
-#define VIRT_UART_IRQ (PCH_PIC_IRQ_OFFSET + 2)
+#define VIRT_UART_IRQ (VIRT_GSI_BASE + 2)
#define VIRT_UART_BASE 0x1fe001e0
#define VIRT_UART_SIZE 0X100
-#define VIRT_RTC_IRQ (PCH_PIC_IRQ_OFFSET + 3)
+#define VIRT_RTC_IRQ (VIRT_GSI_BASE + 3)
#define VIRT_MISC_REG_BASE (VIRT_PCH_REG_BASE + 0x00080000)
#define VIRT_RTC_REG_BASE (VIRT_MISC_REG_BASE + 0x00050100)
#define VIRT_RTC_LEN 0x100
-#define VIRT_SCI_IRQ (PCH_PIC_IRQ_OFFSET + 4)
+#define VIRT_SCI_IRQ (VIRT_GSI_BASE + 4)
#define VIRT_PLATFORM_BUS_BASEADDRESS 0x16000000
#define VIRT_PLATFORM_BUS_SIZE 0x2000000
#define VIRT_PLATFORM_BUS_NUM_IRQS 2
-#define VIRT_PLATFORM_BUS_IRQ 69
+#define VIRT_PLATFORM_BUS_IRQ (VIRT_GSI_BASE + 5)
#endif