#define __FDT_HELPER_H__
/**
+ * Fix up the PLIC node in the device tree
+ *
+ * This routine updates the "interrupt-extended" property of the PLIC node in
+ * the device tree to hide the M-mode external interrupt from CPUs.
+ *
+ * It is recommended that platform codes call this helper in their final_init()
+ *
+ * @param fdt: device tree blob
+ * @param compat: PLIC node compatible string
+ */
+void fdt_plic_fixup(void *fdt, const char *compat);
+
+/**
* Fix up the reserved memory node in the device tree
*
* This routine inserts a child node of the reserved memory node in the device
#include <sbi/sbi_types.h>
-void plic_fdt_fixup(void *fdt, const char *compat);
-
int plic_warm_irqchip_init(u32 target_hart, int m_cntx_id, int s_cntx_id);
int plic_cold_irqchip_init(unsigned long base, u32 num_sources, u32 hart_count);
#include <sbi/sbi_platform.h>
#include <sbi/sbi_scratch.h>
+void fdt_plic_fixup(void *fdt, const char *compat)
+{
+ u32 *cells;
+ int i, cells_count;
+ int plic_off;
+
+ plic_off = fdt_node_offset_by_compatible(fdt, 0, compat);
+ if (plic_off < 0)
+ return;
+
+ cells = (u32 *)fdt_getprop(fdt, plic_off,
+ "interrupts-extended", &cells_count);
+ if (!cells)
+ return;
+
+ cells_count = cells_count / sizeof(u32);
+ if (!cells_count)
+ return;
+
+ for (i = 0; i < (cells_count / 2); i++) {
+ if (fdt32_to_cpu(cells[2 * i + 1]) == IRQ_M_EXT)
+ cells[2 * i + 1] = cpu_to_fdt32(0xffffffff);
+ }
+}
+
/**
* We use PMP to protect OpenSBI firmware to safe-guard it from buggy S-mode
* software, see pmp_init() in lib/sbi/sbi_hart.c. The protected memory region
#include <sbi/sbi_console.h>
#include <sbi/sbi_string.h>
#include <sbi_utils/irqchip/plic.h>
-#include <libfdt.h>
-#include <fdt.h>
#define PLIC_PRIORITY_BASE 0x0
#define PLIC_PENDING_BASE 0x1000
writel(val, plic_ie + word_index * 4);
}
-void plic_fdt_fixup(void *fdt, const char *compat)
-{
- u32 *cells;
- int i, cells_count;
- int plic_off;
-
- plic_off = fdt_node_offset_by_compatible(fdt, 0, compat);
- if (plic_off < 0)
- return;
-
- cells = (u32 *)fdt_getprop(fdt, plic_off,
- "interrupts-extended", &cells_count);
- if (!cells)
- return;
-
- cells_count = cells_count / sizeof(u32);
- if (!cells_count)
- return;
-
- for (i = 0; i < (cells_count / 2); i++) {
- if (fdt32_to_cpu(cells[2 * i + 1]) == IRQ_M_EXT)
- cells[2 * i + 1] = cpu_to_fdt32(0xffffffff);
- }
-}
-
int plic_warm_irqchip_init(u32 target_hart, int m_cntx_id, int s_cntx_id)
{
size_t i, ie_words = plic_num_sources / 32 + 1;
#include <sbi/sbi_console.h>
#include <sbi/sbi_const.h>
#include <sbi/sbi_platform.h>
+#include <sbi_utils/fdt/fdt_helper.h>
#include <sbi_utils/irqchip/plic.h>
#include <sbi_utils/serial/uart8250.h>
#include "platform.h"
return 0;
fdt = sbi_scratch_thishart_arg1_ptr();
- plic_fdt_fixup(fdt, "riscv,plic0");
+ fdt_plic_fixup(fdt, "riscv,plic0");
return 0;
}
#include <sbi/sbi_const.h>
#include <sbi/sbi_hart.h>
#include <sbi/sbi_platform.h>
+#include <sbi_utils/fdt/fdt_helper.h>
#include <sbi_utils/irqchip/plic.h>
#include <sbi_utils/serial/uart8250.h>
#include <sbi_utils/sys/clint.h>
if (!cold_boot)
return 0;
fdt = sbi_scratch_thishart_arg1_ptr();
- plic_fdt_fixup(fdt, "riscv,plic0");
+ fdt_plic_fixup(fdt, "riscv,plic0");
return 0;
}
#include <sbi/sbi_const.h>
#include <sbi/sbi_hart.h>
#include <sbi/sbi_platform.h>
+#include <sbi_utils/fdt/fdt_helper.h>
#include <sbi_utils/irqchip/plic.h>
#include <sbi_utils/serial/uart8250.h>
#include <sbi_utils/sys/clint.h>
return 0;
fdt = sbi_scratch_thishart_arg1_ptr();
- plic_fdt_fixup(fdt, "riscv,plic0");
+ fdt_plic_fixup(fdt, "riscv,plic0");
return 0;
}
#include <sbi/sbi_console.h>
#include <sbi/sbi_const.h>
#include <sbi/sbi_platform.h>
+#include <sbi_utils/fdt/fdt_helper.h>
#include <sbi_utils/irqchip/plic.h>
#include <sbi_utils/serial/sifive-uart.h>
#include <sbi_utils/sys/clint.h>
fdt_setprop_string(fdt, chosen_offset, "stdout-path",
"/soc/serial@10010000:115200");
- plic_fdt_fixup(fdt, "riscv,plic0");
+ fdt_plic_fixup(fdt, "riscv,plic0");
}
static int fu540_final_init(bool cold_boot)