85xx: Move LAW init code into C
Move the initialization of the LAWs into C code and provide an API
to allow modification of LAWs after init.
Board code is responsible to provide a law_table and num_law_entries.
We should be able to use the same code on 86xx as well.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
diff --git a/include/asm-ppc/fsl_law.h b/include/asm-ppc/fsl_law.h
new file mode 100644
index 0000000..7cb8840
--- /dev/null
+++ b/include/asm-ppc/fsl_law.h
@@ -0,0 +1,80 @@
+#ifndef _FSL_LAW_H_
+#define _FSL_LAW_H_
+
+#include <asm/io.h>
+
+#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
+#define SET_LAW_ENTRY(idx, a, sz, trgt) \
+ { .index = idx, .addr = a, .size = sz, .trgt_id = trgt }
+
+enum law_size {
+ LAW_SIZE_4K = 0xb,
+ LAW_SIZE_8K,
+ LAW_SIZE_16K,
+ LAW_SIZE_32K,
+ LAW_SIZE_64K,
+ LAW_SIZE_128K,
+ LAW_SIZE_256K,
+ LAW_SIZE_512K,
+ LAW_SIZE_1M,
+ LAW_SIZE_2M,
+ LAW_SIZE_4M,
+ LAW_SIZE_8M,
+ LAW_SIZE_16M,
+ LAW_SIZE_32M,
+ LAW_SIZE_64M,
+ LAW_SIZE_128M,
+ LAW_SIZE_256M,
+ LAW_SIZE_512M,
+ LAW_SIZE_1G,
+ LAW_SIZE_2G,
+ LAW_SIZE_4G,
+ LAW_SIZE_8G,
+ LAW_SIZE_16G,
+ LAW_SIZE_32G,
+};
+
+enum law_trgt_if {
+ LAW_TRGT_IF_PCI = 0x00,
+ LAW_TRGT_IF_PCI_2 = 0x01,
+#ifndef CONFIG_MPC8641
+ LAW_TRGT_IF_PCIE_1 = 0x02,
+#endif
+#ifndef CONFIG_MPC8572
+ LAW_TRGT_IF_PCIE_3 = 0x03,
+#endif
+ LAW_TRGT_IF_LBC = 0x04,
+ LAW_TRGT_IF_CCSR = 0x08,
+ LAW_TRGT_IF_DDR_INTRLV = 0x0b,
+ LAW_TRGT_IF_RIO = 0x0c,
+ LAW_TRGT_IF_DDR = 0x0f,
+ LAW_TRGT_IF_DDR_2 = 0x16, /* 2nd controller */
+};
+#define LAW_TRGT_IF_DDR_1 LAW_TRGT_IF_DDR
+#define LAW_TRGT_IF_PCI_1 LAW_TRGT_IF_PCI
+#define LAW_TRGT_IF_PCIX LAW_TRGT_IF_PCI
+#define LAW_TRGT_IF_PCIE_2 LAW_TRGT_IF_PCI_2
+
+#ifdef CONFIG_MPC8641
+#define LAW_TRGT_IF_PCIE_1 LAW_TRGT_IF_PCI
+#endif
+
+#ifdef CONFIG_MPC8572
+#define LAW_TRGT_IF_PCIE_3 LAW_TRGT_IF_PCI
+#endif
+
+struct law_entry {
+ int index;
+ phys_addr_t addr;
+ enum law_size size;
+ enum law_trgt_if trgt_id;
+};
+
+extern void set_law(u8 idx, phys_addr_t addr, enum law_size sz, enum law_trgt_if id);
+extern void disable_law(u8 idx);
+extern void init_laws(void);
+
+/* define in board code */
+extern struct law_entry law_table[];
+extern int num_law_entries;
+#endif