[SLOF] [PATCH v4 03/23] pci: add byte read/write helper routines

[Nikunj A Dadhania]

Signed-off-by: Nikunj A Dadhania <nikunj at linux.vnet.ibm.com>
Reviewed-by: Thomas Huth <thuth at redhat.com>
---
 include/helpers.h |  2 ++
 slof/helpers.c    | 14 ++++++++++++++
 2 files changed, 16 insertions(+)

diff --git a/include/helpers.h b/include/helpers.h
index fb10534..5b3d711 100644
--- a/include/helpers.h
+++ b/include/helpers.h
@@ -30,8 +30,10 @@ extern long SLOF_dma_map_in(void *virt, long size, int cacheable);
 extern void SLOF_dma_map_out(long phys, void *virt, long size);
 extern long SLOF_pci_config_read32(long offset);
 extern long SLOF_pci_config_read16(long offset);
+extern long SLOF_pci_config_read8(long offset);
 extern void SLOF_pci_config_write32(long offset, long value);
 extern void SLOF_pci_config_write16(long offset, long value);
+extern void SLOF_pci_config_write8(long offset, long value);
 extern void *SLOF_translate_my_address(void *addr);
 
 #define offset_of(type, member) ((long) &((type *)0)->member)
diff --git a/slof/helpers.c b/slof/helpers.c
index d7c1888..48c34a6 100644
--- a/slof/helpers.c
+++ b/slof/helpers.c
@@ -114,6 +114,13 @@ long SLOF_pci_config_read16(long offset)
 	return forth_pop();
 }
 
+long SLOF_pci_config_read8(long offset)
+{
+	forth_push(offset);
+	forth_eval("config-b@");
+	return forth_pop();
+}
+
 void SLOF_pci_config_write32(long offset, long value)
 {
 	forth_push(value);
@@ -128,6 +135,13 @@ void SLOF_pci_config_write16(long offset, long value)
 	forth_eval("config-w!");
 }
 
+void SLOF_pci_config_write8(long offset, long value)
+{
+	forth_push(value);
+	forth_push(offset);
+	forth_eval("config-b!");
+}
+
 void *SLOF_translate_my_address(void *addr)
 {
 	forth_push((long)addr);
-- 
2.5.0