Patchwork [4/4] versatiblepb: add NOR flash support

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Submitter Peter Maydell
Date April 20, 2012, 5:44 p.m.
Message ID <1334943845-10964-5-git-send-email-peter.maydell@linaro.org>
Download mbox | patch
Permalink /patch/154078/
State New
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Comments

Peter Maydell - April 20, 2012, 5:44 p.m.
From: Eric Benard <eric@eukrea.com>

- add support for the 64MB NOR CFI01 flash available at
0x34000000 on the versatilepb board
http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.dui0225d/BBAJIHEC.html

- tested with barebox bootloader

Signed-off-by: Eric BĂ©nard <eric@eukrea.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 hw/versatilepb.c |   16 ++++++++++++++++
 1 files changed, 16 insertions(+), 0 deletions(-)

Patch

diff --git a/hw/versatilepb.c b/hw/versatilepb.c
index d011554..7c79c54 100644
--- a/hw/versatilepb.c
+++ b/hw/versatilepb.c
@@ -17,6 +17,11 @@ 
 #include "boards.h"
 #include "blockdev.h"
 #include "exec-memory.h"
+#include "flash.h"
+
+#define VERSATILE_FLASH_ADDR 0x34000000
+#define VERSATILE_FLASH_SIZE (64 * 1024 * 1024)
+#define VERSATILE_FLASH_SECT_SIZE (256 * 1024)
 
 /* Primary interrupt controller.  */
 
@@ -182,6 +187,7 @@  static void versatile_init(ram_addr_t ram_size,
     i2c_bus *i2c;
     int n;
     int done_smc = 0;
+    DriveInfo *dinfo;
 
     if (!cpu_model)
         cpu_model = "arm926";
@@ -316,6 +322,16 @@  static void versatile_init(ram_addr_t ram_size,
     /*  0x101f2000 UART1.  */
     /*  0x101f3000 UART2.  */
     /* 0x101f4000 SSPI.  */
+    /* 0x34000000 NOR Flash */
+
+    dinfo = drive_get(IF_PFLASH, 0, 0);
+    if (!pflash_cfi01_register(VERSATILE_FLASH_ADDR, NULL, "versatile.flash",
+                          VERSATILE_FLASH_SIZE, dinfo ? dinfo->bdrv : NULL,
+                          VERSATILE_FLASH_SECT_SIZE,
+                          VERSATILE_FLASH_SIZE / VERSATILE_FLASH_SECT_SIZE,
+                          4, 0x0089, 0x0018, 0x0000, 0x0, 0)) {
+        fprintf(stderr, "qemu: Error registering flash memory.\n");
+    }
 
     versatile_binfo.ram_size = ram_size;
     versatile_binfo.kernel_filename = kernel_filename;