bcma: move parallel flash support to separated file

This follows the way of handling other flashes and cleans code a bit. As
next task we will want to move flash code to ChipCommon driver as:
1) Flash controllers are accesible using ChipCommon registers
2) This code isn't MIPS specific
This change prepares bcma for that.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

1 files changed, 49 insertions, 0 deletions

diff --git a/drivers/bcma/driver_chipcommon_pflash.c b/drivers/bcma/driver_chipcommon_pflash.c
new file mode 100644
index 000000000000..3b497c9ee0d4
--- /dev/null
+++ b/drivers/bcma/driver_chipcommon_pflash.c
@@ -0,0 +1,49 @@
+/*
+ * Broadcom specific AMBA
+ * ChipCommon parallel flash
+ *
+ * Licensed under the GNU/GPL. See COPYING for details.
+ */
+
+#include "bcma_private.h"
+
+#include <linux/bcma/bcma.h>
+#include <linux/mtd/physmap.h>
+#include <linux/platform_device.h>
+
+static const char * const part_probes[] = { "bcm47xxpart", NULL };
+
+static struct physmap_flash_data bcma_pflash_data = {
+        .part_probe_types       = part_probes,
+};
+
+static struct resource bcma_pflash_resource = {
+        .name   = "bcma_pflash",
+        .flags  = IORESOURCE_MEM,
+};
+
+struct platform_device bcma_pflash_dev = {
+        .name           = "physmap-flash",
+        .dev            = {
+                .platform_data  = &bcma_pflash_data,
+        },
+        .resource       = &bcma_pflash_resource,
+        .num_resources  = 1,
+};
+
+int bcma_pflash_init(struct bcma_drv_cc *cc)
+{
+        struct bcma_pflash *pflash = &cc->pflash;
+
+        pflash->present = true;
+
+        if (!(bcma_read32(cc->core, BCMA_CC_FLASH_CFG) & BCMA_CC_FLASH_CFG_DS))
+                bcma_pflash_data.width = 1;
+        else
+                bcma_pflash_data.width = 2;
+
+        bcma_pflash_resource.start = BCMA_SOC_FLASH2;
+        bcma_pflash_resource.end = BCMA_SOC_FLASH2 + BCMA_SOC_FLASH2_SZ;
+
+        return 0;
+}