[ARM] orion5x: add sram support for crypto

The security accelerator which can act as a puppet player for the crypto
engine requires its commands in the sram. This patch adds support for the
phys mapping and creates a platform device for the actual driver.

[ nico: renamed device name from "mv,orion5x-crypto" to "mv_crypto"
  so to match the module name and be more generic for Kirkwood use ]

Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
Signed-off-by: Nicolas Pitre <nico@marvell.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/arch/arm/mach-orion5x/include/mach/orion5x.h b/arch/arm/mach-orion5x/include/mach/orion5x.h
index 377a773ae53f..2d8766570531 100644
--- a/arch/arm/mach-orion5x/include/mach/orion5x.h
+++ b/arch/arm/mach-orion5x/include/mach/orion5x.h
@@ -24,6 +24,7 @@
  * f1000000     on-chip peripheral registers
  * f2000000     PCIe I/O space
  * f2100000     PCI I/O space
+ * f2200000     SRAM dedicated for the crypto unit
  * f4000000     device bus mappings (boot)
  * fa000000     device bus mappings (cs0)
  * fa800000     device bus mappings (cs2)
@@ -49,6 +50,9 @@
 #define ORION5X_PCI_IO_BUS_BASE         0x00100000
 #define ORION5X_PCI_IO_SIZE             SZ_1M
 
+#define ORION5X_SRAM_PHYS_BASE          (0xf2200000)
+#define ORION5X_SRAM_SIZE               SZ_8K
+
 /* Relevant only for Orion-1/Orion-NAS */
 #define ORION5X_PCIE_WA_PHYS_BASE       0xf0000000
 #define ORION5X_PCIE_WA_VIRT_BASE       0xfe000000
@@ -94,6 +98,8 @@
 #define ORION5X_SATA_PHYS_BASE          (ORION5X_REGS_PHYS_BASE | 0x80000)
 #define ORION5X_SATA_VIRT_BASE          (ORION5X_REGS_VIRT_BASE | 0x80000)
 
+#define ORION5X_CRYPTO_PHYS_BASE        (ORION5X_REGS_PHYS_BASE | 0x90000)
+
 #define ORION5X_USB1_PHYS_BASE          (ORION5X_REGS_PHYS_BASE | 0xa0000)
 #define ORION5X_USB1_VIRT_BASE          (ORION5X_REGS_VIRT_BASE | 0xa0000)