From f5213b2c40f5749e6b9b8f737ea946495ed0a438 Mon Sep 17 00:00:00 2001
From: Helge Deller <deller@gmx.de>
Date: Sun, 20 Aug 2017 10:52:22 +0200
Subject: parisc: Make existing core files reuseable for bootloader

Signed-off-by: Helge Deller <deller@gmx.de>
---
 arch/parisc/kernel/firmware.c | 15 ++++++++++++++-
 arch/parisc/kernel/real2.S    |  4 ++++
 2 files changed, 18 insertions(+), 1 deletion(-)

(limited to 'arch/parisc/kernel')

diff --git a/arch/parisc/kernel/firmware.c b/arch/parisc/kernel/firmware.c
index be9a2e89e90f..ab80e5c6f651 100644
--- a/arch/parisc/kernel/firmware.c
+++ b/arch/parisc/kernel/firmware.c
@@ -69,7 +69,15 @@
 #include <asm/pdcpat.h>
 #include <asm/processor.h>	/* for boot_cpu_data */
 
+#if defined(BOOTLOADER)
+# undef  spin_lock_irqsave
+# define spin_lock_irqsave(a, b) { b = 1; }
+# undef  spin_unlock_irqrestore
+# define spin_unlock_irqrestore(a, b)
+#else
 static DEFINE_SPINLOCK(pdc_lock);
+#endif
+
 extern unsigned long pdc_result[NUM_PDC_RESULT];
 extern unsigned long pdc_result2[NUM_PDC_RESULT];
 
@@ -186,6 +194,8 @@ void set_firmware_width(void)
 }
 #endif /*CONFIG_64BIT*/
 
+
+#if !defined(BOOTLOADER)
 /**
  * pdc_emergency_unlock - Unlock the linux pdc lock
  *
@@ -1149,6 +1159,8 @@ void pdc_io_reset_devices(void)
 	spin_unlock_irqrestore(&pdc_lock, flags);
 }
 
+#endif /* defined(BOOTLOADER) */
+
 /* locked by pdc_console_lock */
 static int __attribute__((aligned(8)))   iodc_retbuf[32];
 static char __attribute__((aligned(64))) iodc_dbuf[4096];
@@ -1193,6 +1205,7 @@ print:
 	return i;
 }
 
+#if !defined(BOOTLOADER)
 /**
  * pdc_iodc_getc - Read a character (non-blocking) from the PDC console.
  *
@@ -1555,6 +1568,7 @@ int pdc_pat_mem_get_dimm_phys_location(
 	return retval;
 }
 #endif /* CONFIG_64BIT */
+#endif /* defined(BOOTLOADER) */
 
 
 /***************** 32-bit real-mode calls ***********/
@@ -1664,4 +1678,3 @@ long real64_call(unsigned long fn, ...)
 }
 
 #endif /* CONFIG_64BIT */
-
diff --git a/arch/parisc/kernel/real2.S b/arch/parisc/kernel/real2.S
index 1db58e546230..cc9963421a19 100644
--- a/arch/parisc/kernel/real2.S
+++ b/arch/parisc/kernel/real2.S
@@ -162,6 +162,7 @@ ENDPROC_CFI(restore_control_regs)
 	.text
 	.align 128
 ENTRY_CFI(rfi_virt2real)
+#if !defined(BOOTLOADER)
 	/* switch to real mode... */
 	rsm		PSW_SM_I,%r0
 	load32		PA(rfi_v2r_1), %r1
@@ -191,6 +192,7 @@ ENTRY_CFI(rfi_virt2real)
 	nop
 rfi_v2r_1:
 	tophys_r1 %r2
+#endif /* defined(BOOTLOADER) */
 	bv	0(%r2)
 	nop
 ENDPROC_CFI(rfi_virt2real)
@@ -198,6 +200,7 @@ ENDPROC_CFI(rfi_virt2real)
 	.text
 	.align 128
 ENTRY_CFI(rfi_real2virt)
+#if !defined(BOOTLOADER)
 	rsm		PSW_SM_I,%r0
 	load32		(rfi_r2v_1), %r1
 	nop
@@ -226,6 +229,7 @@ ENTRY_CFI(rfi_real2virt)
 	nop
 rfi_r2v_1:
 	tovirt_r1 %r2
+#endif /* defined(BOOTLOADER) */
 	bv	0(%r2)
 	nop
 ENDPROC_CFI(rfi_real2virt)
-- 
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