Patchwork [RFC,v0,08/10] pflash_cfi01: Added fdt generic platform support

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Submitter Peter A. G. Crosthwaite
Date Sept. 17, 2012, 9:03 a.m.
Message ID <524fcc5ddac9a69c2fc9f7a7de23a9eb57f7fe6f.1347871922.git.peter.crosthwaite@petalogix.com>
Download mbox | patch
Permalink /patch/184355/
State New
Headers show

Comments

Peter A. G. Crosthwaite - Sept. 17, 2012, 9:03 a.m.
Added fdt generic platform support. Note that this does not add the fdt init
handler to the table of registered models as this needs to be handled in a
platform dependent way (due to target endianness issues). Fdt generic machine
models are required to register this device should it be supported.

Signed-off-by: Peter A. G. Crosthwaite <peter.crosthwaite@petalogix.com>
---
 hw/fdt_generic_devices.c    |   45 +++++++++++++++++++++++++++++++++++++++++++
 hw/fdt_generic_devices.h    |    8 +++++++
 hw/microblaze/Makefile.objs |    1 +
 3 files changed, 54 insertions(+), 0 deletions(-)
 create mode 100644 hw/fdt_generic_devices.c
 create mode 100644 hw/fdt_generic_devices.h

Patch

diff --git a/hw/fdt_generic_devices.c b/hw/fdt_generic_devices.c
new file mode 100644
index 0000000..91b3c5b
--- /dev/null
+++ b/hw/fdt_generic_devices.c
@@ -0,0 +1,45 @@ 
+
+#include "blockdev.h"
+
+#include "fdt_generic_util.h"
+#include "fdt_generic_devices.h"
+
+#define FLASH_SECTOR_SIZE (64 * 1024)
+
+/* FIXME: This file should go away. When these devices are properly QOMified
+ * then these FDT creations should happen automatically without need for these
+ * explict shim functions
+ */
+
+int pflash_cfi01_fdt_init(char *node_path, FDTMachineInfo *fdti, void *opaque)
+{
+
+    int flash_base = 0;
+    int flash_size = 0;
+    Error *errp = NULL;
+
+    int be = *((int *)opaque);
+
+    DriveInfo *dinfo;
+    int bank_width;
+
+    flash_base = qemu_devtree_getprop_cell(fdti->fdt, node_path, "reg", 0,
+                                                false, &errp);
+    flash_size = qemu_devtree_getprop_cell(fdti->fdt, node_path, "reg", 1,
+                                                false, &errp);
+    bank_width = qemu_devtree_getprop_cell(fdti->fdt, node_path, "bank-width",
+                                                0, false, &errp);
+    assert_no_error(errp);
+
+    printf("FDT: FLASH: baseaddr: 0x%x, size: 0x%x\n",
+           flash_base, flash_size);
+
+    dinfo = drive_get_next(IF_PFLASH);
+    pflash_cfi01_register(flash_base, NULL, node_path, flash_size,
+                            dinfo ? dinfo->bdrv : NULL, FLASH_SECTOR_SIZE,
+                            flash_size/FLASH_SECTOR_SIZE,
+                            bank_width, 0x89, 0x18, 0x0000, 0x0, be);
+    return 0;
+}
+
+#endif /* CONFIG_FDT */
diff --git a/hw/fdt_generic_devices.h b/hw/fdt_generic_devices.h
new file mode 100644
index 0000000..3bb4c05
--- /dev/null
+++ b/hw/fdt_generic_devices.h
@@ -0,0 +1,8 @@ 
+#ifndef FDT_GENERIC_DEVICES_H
+#define FDT_GENERIC_DEVICES_H
+
+#include "fdt_generic.h"
+
+int pflash_cfi01_fdt_init(char *node_path, FDTMachineInfo *fdti, void *opaque);
+
+#endif /* FDT_GENERIC_DEVICES_H */
diff --git a/hw/microblaze/Makefile.objs b/hw/microblaze/Makefile.objs
index 23f9cbb..ef2d6b7 100644
--- a/hw/microblaze/Makefile.objs
+++ b/hw/microblaze/Makefile.objs
@@ -8,5 +8,6 @@  obj-$(CONFIG_FDT) += ../device_tree.o
 
 obj-$(CONFIG_FDT_GENERIC) += fdt_generic.o
 obj-$(CONFIG_FDT_GENERIC) += fdt_generic_util.o
+obj-$(CONFIG_FDT_GENERIC) += fdt_generic_devices.o
 
 obj-y := $(addprefix ../,$(obj-y))