firmware: Remove FW_PAYLOAD_FDT_PATH compile-time option

The FW_PAYLOAD_FDT_PATH compile-time option is replaced by
FW_FDT_PATH compile-time option which is more flexible and
common across all OpenSBI firmwares.

This patch removes FW_PAYLOAD_FDT_PATH and updates related
documentation to use FW_FDT_PATH.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Atish Patra <atish.patra@wdc.com>

6 files changed, 0 insertions, 64 deletions

diff --git a/firmware/external_deps.mk b/firmware/external_deps.mk
index f43ac06..6264005 100644
--- a/firmware/external_deps.mk
+++ b/firmware/external_deps.mk
@@ -12,4 +12,3 @@ $(platform_build_dir)/firmware/fw_jump.o: $(FW_FDT_PATH)
 $(platform_build_dir)/firmware/fw_payload.o: $(FW_FDT_PATH)
 
 $(platform_build_dir)/firmware/fw_payload.o: $(FW_PAYLOAD_PATH_FINAL)
-$(platform_build_dir)/firmware/fw_payload.o: $(FW_PAYLOAD_FDT_PATH)
diff --git a/firmware/fw_base.S b/firmware/fw_base.S
index 95197da..1d9b375 100644
--- a/firmware/fw_base.S
+++ b/firmware/fw_base.S
@@ -187,15 +187,6 @@ _bss_zero:
 	la	a1, fw_fdt_bin
 #endif
 
-	/* Override previous arg1 */
-	MOV_3R	s0, a0, s1, a1, s2, a2
-	call	fw_prev_arg1
-	add	t1, a0, zero
-	MOV_3R	a0, s0, a1, s1, a2, s2
-	beqz	t1, _prev_arg1_override_done
-	add	a1, t1, zero
-_prev_arg1_override_done:
-
 	/*
 	 * Initialize platform
 	 * Note: The a0 to a4 registers passed to the
diff --git a/firmware/fw_dynamic.S b/firmware/fw_dynamic.S
index d658011..8b56947 100644
--- a/firmware/fw_dynamic.S
+++ b/firmware/fw_dynamic.S
@@ -88,19 +88,6 @@ fw_save_info:
 
 	.section .entry, "ax", %progbits
 	.align 3
-	.global fw_prev_arg1
-	/*
-	 * We can only use a0, a1, and a2 registers here.
-	 * The a0, a1, and a2 registers will be same as passed by
-	 * previous booting stage.
-	 * The previous arg1 should be returned in 'a0'.
-	 */
-fw_prev_arg1:
-	add	a0, zero, zero
-	ret
-
-	.section .entry, "ax", %progbits
-	.align 3
 	.global fw_next_arg1
 	/*
 	 * We can only use a0, a1, and a2 registers here.
diff --git a/firmware/fw_jump.S b/firmware/fw_jump.S
index afbcec0..8553f8c 100644
--- a/firmware/fw_jump.S
+++ b/firmware/fw_jump.S
@@ -36,19 +36,6 @@ fw_save_info:
 
 	.section .entry, "ax", %progbits
 	.align 3
-	.global fw_prev_arg1
-	/*
-	 * We can only use a0, a1, and a2 registers here.
-	 * The a0, a1, and a2 registers will be same as passed by
-	 * previous booting stage.
-	 * The previous arg1 should be returned in 'a0'.
-	 */
-fw_prev_arg1:
-	add	a0, zero, zero
-	ret
-
-	.section .entry, "ax", %progbits
-	.align 3
 	.global fw_next_arg1
 	/*
 	 * We can only use a0, a1, and a2 registers here.
diff --git a/firmware/fw_payload.S b/firmware/fw_payload.S
index 9805d8c..1ef121e 100644
--- a/firmware/fw_payload.S
+++ b/firmware/fw_payload.S
@@ -36,23 +36,6 @@ fw_save_info:
 
 	.section .entry, "ax", %progbits
 	.align 3
-	.global fw_prev_arg1
-	/*
-	 * We can only use a0, a1, and a2 registers here.
-	 * The a0, a1, and a2 registers will be same as passed by
-	 * previous booting stage.
-	 * The previous arg1 should be returned in 'a0'.
-	 */
-fw_prev_arg1:
-#ifdef FW_PAYLOAD_FDT_PATH
-	la	a0, fdt_bin
-#else
-	add	a0, zero, zero
-#endif
-	ret
-
-	.section .entry, "ax", %progbits
-	.align 3
 	.global fw_next_arg1
 	/*
 	 * We can only use a0, a1, and a2 registers here.
@@ -102,14 +85,6 @@ fw_options:
 	add	a0, zero, zero
 	ret
 
-#ifdef FW_PAYLOAD_FDT_PATH
-	.section .text, "ax", %progbits
-	.align 4
-	.globl fdt_bin
-fdt_bin:
-	.incbin	FW_PAYLOAD_FDT_PATH
-#endif
-
 	.section .payload, "ax", %progbits
 	.align 4
 	.globl payload_bin
diff --git a/firmware/objects.mk b/firmware/objects.mk
index 2eea54c..b2ace75 100644
--- a/firmware/objects.mk
+++ b/firmware/objects.mk
@@ -48,9 +48,6 @@ ifdef FW_PAYLOAD_ALIGN
 firmware-genflags-$(FW_PAYLOAD) += -DFW_PAYLOAD_ALIGN=$(FW_PAYLOAD_ALIGN)
 endif
 
-ifdef FW_PAYLOAD_FDT_PATH
-firmware-genflags-$(FW_PAYLOAD) += -DFW_PAYLOAD_FDT_PATH=\"$(FW_PAYLOAD_FDT_PATH)\"
-endif
 ifdef FW_PAYLOAD_FDT_ADDR
 firmware-genflags-$(FW_PAYLOAD) += -DFW_PAYLOAD_FDT_ADDR=$(FW_PAYLOAD_FDT_ADDR)
 endif