board/bsc9131rdb: Add DSP side tlb and laws

BSC9131RDB is a Freescale Reference Design Board for
BSC9131 SoC which is a integrated device that contains
one powerpc e500v2 core and one DSP starcore.

To support DSP starcore
-Creating LAW and TLB for DSP-CCSR space.
-Creating LAW for DSP-core subsystem M2 memory

Signed-off-by: Priyanka Jain <Priyanka.Jain@freescale.com>
Signed-off-by: Poonam Aggrwal <poonam.aggrwal@freescale.com>
Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>

README

@@ -422,6 +422,13 @@ The following options need to be configured:
 		This is the value to write into CCSR offset 0x18600
 		according to the A004510 workaround.
 
+		CONFIG_SYS_FSL_DSP_M2_RAM_ADDR
+		This value denotes start offset of M2 memory
+		which is directly connected to the DSP core.
+
+		CONFIG_SYS_FSL_DSP_CCSRBAR_DEFAULT
+		This value denotes start offset of DSP CCSR space.
+
 - Generic CPU options:
 		CONFIG_SYS_BIG_ENDIAN, CONFIG_SYS_LITTLE_ENDIAN
 

arch/powerpc/include/asm/config_mpc85xx.h

@@ -494,6 +494,8 @@
 #define CONFIG_TSECV2
 #define CONFIG_SYS_FSL_SEC_COMPAT	4
 #define CONFIG_NUM_DDR_CONTROLLERS	1
+#define CONFIG_SYS_FSL_DSP_M2_RAM_ADDR	0xb0000000
+#define CONFIG_SYS_FSL_DSP_CCSRBAR_DEFAULT	0xff600000
 #define CONFIG_SYS_CCSRBAR_DEFAULT	0xff700000
 #define CONFIG_NAND_FSL_IFC
 #define CONFIG_SYS_FSL_ERRATUM_ESDHC111

arch/powerpc/include/asm/fsl_law.h

@@ -82,11 +82,16 @@ enum law_trgt_if {
 #ifndef CONFIG_MPC8641
 	LAW_TRGT_IF_PCIE_1 = 0x02,
 #endif
+#if defined(CONFIG_BSC9131)
+	LAW_TRGT_IF_OCN_DSP = 0x03,
+#else
 #if !defined(CONFIG_MPC8572) && !defined(CONFIG_P2020)
 	LAW_TRGT_IF_PCIE_3 = 0x03,
 #endif
+#endif
 	LAW_TRGT_IF_LBC = 0x04,
 	LAW_TRGT_IF_CCSR = 0x08,
+	LAW_TRGT_IF_DSP_CCSR = 0x09,
 	LAW_TRGT_IF_DDR_INTRLV = 0x0b,
 	LAW_TRGT_IF_RIO = 0x0c,
 	LAW_TRGT_IF_RIO_2 = 0x0d,

board/freescale/bsc9131rdb/law.c

@@ -26,6 +26,10 @@
 
 struct law_entry law_table[] = {
 	SET_LAW(CONFIG_SYS_NAND_BASE_PHYS, LAW_SIZE_1M, LAW_TRGT_IF_IFC),
+	SET_LAW(CONFIG_SYS_FSL_DSP_CCSRBAR_PHYS, LAW_SIZE_1M,
+		LAW_TRGT_IF_DSP_CCSR),
+	SET_LAW(CONFIG_SYS_FSL_DSP_M2_RAM_ADDR, LAW_SIZE_16M,
+		LAW_TRGT_IF_OCN_DSP),
 };
 
 int num_law_entries = ARRAY_SIZE(law_table);

board/freescale/bsc9131rdb/tlb.c

@@ -52,6 +52,12 @@ struct fsl_e_tlb_entry tlb_table[] = {
 			MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
 			0, 1, BOOKE_PAGESZ_1M, 1),
 
+	/* CCSRBAR (DSP) */
+	SET_TLB_ENTRY(1, CONFIG_SYS_FSL_DSP_CCSRBAR,
+		      CONFIG_SYS_FSL_DSP_CCSRBAR_PHYS,
+		      MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+		      0, 2, BOOKE_PAGESZ_1M, 1),
+
 #if  defined(CONFIG_SYS_RAMBOOT) || defined(CONFIG_SPL)
 	SET_TLB_ENTRY(1, CONFIG_SYS_DDR_SDRAM_BASE, CONFIG_SYS_DDR_SDRAM_BASE,
 			MAS3_SX|MAS3_SW|MAS3_SR, 0,

include/configs/BSC9131RDB.h

@@ -153,16 +153,21 @@ extern unsigned long get_sdram_size(void);
 
 #define CONFIG_SYS_IMMR		CONFIG_SYS_CCSRBAR	/* PQII uses */
 							/* CONFIG_SYS_IMMR */
+/* DSP CCSRBAR */
+#define CONFIG_SYS_FSL_DSP_CCSRBAR	CONFIG_SYS_FSL_DSP_CCSRBAR_DEFAULT
+#define CONFIG_SYS_FSL_DSP_CCSRBAR_PHYS	CONFIG_SYS_FSL_DSP_CCSRBAR_DEFAULT
 
 /*
  * Memory map
  *
  * 0x0000_0000	0x3FFF_FFFF	DDR			1G cacheable
  * 0x8800_0000	0x8810_0000	IFC internal SRAM		1M
+ * 0xB000_0000	0xB0FF_FFFF	DSP core M2 memory	16M
  * 0xC100_0000	0xC13F_FFFF	MAPLE-2F		4M
  * 0xC1F0_0000	0xC1F3_FFFF	PA L2 SRAM Region 0	256K
  * 0xC1F8_0000	0xC1F9_FFFF	PA L2 SRAM Region 1	128K
  * 0xFED0_0000	0xFED0_3FFF	SEC Secured RAM		16K
+ * 0xFF60_0000	0xFF6F_FFFF	DSP CCSR		1M
  * 0xFF70_0000	0xFF7F_FFFF	PA CCSR			1M
  * 0xFF80_0000	0xFFFF_FFFF	Boot Page & NAND flash buffer	8M
  *