diff mbox series

[PULL,07/46] hw/mips/gt64xxx_pci: Manage endian bits with the RegisterFields API

Message ID 20230113154532.49979-8-philmd@linaro.org
State Accepted
Commit 81ad24762d4295bbe1e2216b21d1e90b81d351a6
Headers show
Series [PULL,01/46] hw/mips/malta: Split FPGA LEDs/ASCII display updates | expand

Commit Message

Philippe Mathieu-Daudé Jan. 13, 2023, 3:44 p.m. UTC 
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20221220113436.14299-4-philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
 hw/mips/gt64xxx_pci.c | 38 +++++++++++++++++++++++---------------
 1 file changed, 23 insertions(+), 15 deletions(-)
diff mbox series

Patch

diff --git a/hw/mips/gt64xxx_pci.c b/hw/mips/gt64xxx_pci.c
index 7ba052a2e0..85bdf5279c 100644
--- a/hw/mips/gt64xxx_pci.c
+++ b/hw/mips/gt64xxx_pci.c
@@ -26,6 +26,7 @@ 
 #include "qapi/error.h"
 #include "qemu/units.h"
 #include "qemu/log.h"
+#include "hw/registerfields.h"
 #include "hw/pci/pci_device.h"
 #include "hw/pci/pci_host.h"
 #include "hw/misc/empty_slot.h"
@@ -41,6 +42,9 @@ 
 #define GT_CPU                  (0x000 >> 2)
 #define GT_MULTI                (0x120 >> 2)
 
+REG32(GT_CPU,                   0x000)
+FIELD(GT_CPU,                   Endianness,     12, 1)
+
 /* CPU Address Decode */
 #define GT_SCS10LD              (0x008 >> 2)
 #define GT_SCS10HD              (0x010 >> 2)
@@ -210,6 +214,17 @@ 
 #define GT_PCI0_CFGADDR         (0xcf8 >> 2)
 #define GT_PCI0_CFGDATA         (0xcfc >> 2)
 
+REG32(GT_PCI0_CMD,              0xc00)
+FIELD(GT_PCI0_CMD,              MByteSwap,      0,  1)
+FIELD(GT_PCI0_CMD,              SByteSwap,      16, 1)
+#define  R_GT_PCI0_CMD_ByteSwap_MASK \
+        (R_GT_PCI0_CMD_MByteSwap_MASK | R_GT_PCI0_CMD_SByteSwap_MASK)
+REG32(GT_PCI1_CMD,              0xc80)
+FIELD(GT_PCI1_CMD,              MByteSwap,      0,  1)
+FIELD(GT_PCI1_CMD,              SByteSwap,      16, 1)
+#define  R_GT_PCI1_CMD_ByteSwap_MASK \
+        (R_GT_PCI1_CMD_MByteSwap_MASK | R_GT_PCI1_CMD_SByteSwap_MASK)
+
 /* Interrupts */
 #define GT_INTRCAUSE            (0xc18 >> 2)
 #define GT_INTRMASK             (0xc1c >> 2)
@@ -1020,15 +1035,16 @@  static const MemoryRegionOps isd_mem_ops = {
 static void gt64120_reset(DeviceState *dev)
 {
     GT64120State *s = GT64120_PCI_HOST_BRIDGE(dev);
+#if TARGET_BIG_ENDIAN
+    bool cpu_little_endian = false;
+#else
+    bool cpu_little_endian = true;
+#endif
 
     /* FIXME: Malta specific hw assumptions ahead */
 
     /* CPU Configuration */
-#if TARGET_BIG_ENDIAN
-    s->regs[GT_CPU]           = 0x00000000;
-#else
-    s->regs[GT_CPU]           = 0x00001000;
-#endif
+    s->regs[GT_CPU] = cpu_little_endian ? R_GT_CPU_Endianness_MASK : 0;
     s->regs[GT_MULTI]         = 0x00000003;
 
     /* CPU Address decode */
@@ -1135,11 +1151,7 @@  static void gt64120_reset(DeviceState *dev)
     s->regs[GT_TC_CONTROL]    = 0x00000000;
 
     /* PCI Internal */
-#if TARGET_BIG_ENDIAN
-    s->regs[GT_PCI0_CMD]      = 0x00000000;
-#else
-    s->regs[GT_PCI0_CMD]      = 0x00010001;
-#endif
+    s->regs[GT_PCI0_CMD] = cpu_little_endian ? R_GT_PCI0_CMD_ByteSwap_MASK : 0;
     s->regs[GT_PCI0_TOR]      = 0x0000070f;
     s->regs[GT_PCI0_BS_SCS10] = 0x00fff000;
     s->regs[GT_PCI0_BS_SCS32] = 0x00fff000;
@@ -1156,11 +1168,7 @@  static void gt64120_reset(DeviceState *dev)
     s->regs[GT_PCI0_SSCS10_BAR] = 0x00000000;
     s->regs[GT_PCI0_SSCS32_BAR] = 0x01000000;
     s->regs[GT_PCI0_SCS3BT_BAR] = 0x1f000000;
-#if TARGET_BIG_ENDIAN
-    s->regs[GT_PCI1_CMD]      = 0x00000000;
-#else
-    s->regs[GT_PCI1_CMD]      = 0x00010001;
-#endif
+    s->regs[GT_PCI1_CMD] = cpu_little_endian ? R_GT_PCI1_CMD_ByteSwap_MASK : 0;
     s->regs[GT_PCI1_TOR]      = 0x0000070f;
     s->regs[GT_PCI1_BS_SCS10] = 0x00fff000;
     s->regs[GT_PCI1_BS_SCS32] = 0x00fff000;