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-rw-r--r--hw/sh4/r2d.c16
1 files changed, 12 insertions, 4 deletions
diff --git a/hw/sh4/r2d.c b/hw/sh4/r2d.c
index 28ed6be05b..e2c46b8f8a 100644
--- a/hw/sh4/r2d.c
+++ b/hw/sh4/r2d.c
@@ -43,7 +43,7 @@
#include "exec/address-spaces.h"
#define FLASH_BASE 0x00000000
-#define FLASH_SIZE 0x02000000
+#define FLASH_SIZE (16 * MiB)
#define SDRAM_BASE 0x0c000000 /* Physical location of SDRAM: Area 3 */
#define SDRAM_SIZE 0x04000000
@@ -287,12 +287,20 @@ static void r2d_init(MachineState *machine)
sysbus_mmio_map(busdev, 1, 0x1400080c);
mmio_ide_init_drives(dev, dinfo, NULL);
- /* onboard flash memory */
+ /*
+ * Onboard flash memory
+ * According to the old board user document in Japanese (under
+ * NDA) what is referred to as FROM (Area0) is connected via a
+ * 32-bit bus and CS0 to CN8. The docs mention a Cypress
+ * S29PL127J60TFI130 chipsset. Per the 'S29PL-J 002-00615
+ * Rev. *E' datasheet, it is a 128Mbit NOR parallel flash
+ * addressable in words of 16bit.
+ */
dinfo = drive_get(IF_PFLASH, 0, 0);
pflash_cfi02_register(0x0, NULL, "r2d.flash", FLASH_SIZE,
dinfo ? blk_by_legacy_dinfo(dinfo) : NULL,
- 16 * KiB, FLASH_SIZE >> 16,
- 1, 4, 0x0000, 0x0000, 0x0000, 0x0000,
+ 64 * KiB, FLASH_SIZE >> 16,
+ 1, 2, 0x0001, 0x227e, 0x2220, 0x2200,
0x555, 0x2aa, 0);
/* NIC: rtl8139 on-board, and 2 slots. */