[Qemu-devel] [PATCH 1/2] vexpress: Add NOR0 Flash support

[402jagan]

From: Jagan <address@hidden>

This patch adds support for NOR0 flash (Bank #1) on
vexpress-a9 platform. It is 64MB CFI01 compliant flash.

Tested on stable u-boot version through Linux.

Signed-off-by: Jagan <address@hidden>
---
 hw/vexpress.c |   17 ++++++++++++++++-
 1 files changed, 16 insertions(+), 1 deletions(-)

diff --git a/hw/vexpress.c b/hw/vexpress.c
index 8072c5a..2e889a8 100644
--- a/hw/vexpress.c
+++ b/hw/vexpress.c
@@ -29,6 +29,11 @@
 #include "sysemu.h"
 #include "boards.h"
 #include "exec-memory.h"
+#include "blockdev.h"
+#include "flash.h"
+
+#define VEXPRESS_FLASH_SIZE (64 * 1024 * 1024)
+#define VEXPRESS_FLASH_SECT_SIZE (256 * 1024)
 
 #define VEXPRESS_BOARD_ID 0x8e0
 
@@ -355,6 +360,7 @@ static void vexpress_common_init(const VEDBoardInfo 
*daughterboard,
     MemoryRegion *vram = g_new(MemoryRegion, 1);
     MemoryRegion *sram = g_new(MemoryRegion, 1);
     const target_phys_addr_t *map = daughterboard->motherboard_map;
+    DriveInfo *dinfo;
 
     daughterboard->init(daughterboard, ram_size, cpu_model, pic, &proc_id);
 
@@ -405,7 +411,16 @@ static void vexpress_common_init(const VEDBoardInfo 
*daughterboard,
 
     sysbus_create_simple("pl111", map[VE_CLCD], pic[14]);
 
-    /* VE_NORFLASH0: not modelled */
+    /* VE_NORFLASH0: */
+    dinfo = drive_get(IF_PFLASH, 0, 0);
+    if (!pflash_cfi01_register(map[VE_NORFLASH0], NULL, "vexpress.flash0",
+        VEXPRESS_FLASH_SIZE, dinfo ? dinfo->bdrv : NULL,
+        VEXPRESS_FLASH_SECT_SIZE,
+        VEXPRESS_FLASH_SIZE / VEXPRESS_FLASH_SECT_SIZE,
+        4, 0x0089, 0x0018, 0x0000, 0x0, 0)) {
+        fprintf(stderr, "qemu: Error registering flash0 memory.\n");
+    }
+
     /* VE_NORFLASH0ALIAS: not modelled */
     /* VE_NORFLASH1: not modelled */
 
-- 
1.7.0.4