powerpc/85xx: refactor common P-Series CoreNet files for FSL boards

We currently support 4 SoC/Boards from the P-Series of QorIQ SoCs that
are based on the 'CoreNet' Architecture: P2041RDB, P3041DS, P4080DS, and
P5020DS.  There is a significant amount of commonality shared between
these boards that we can refactor into common code:

* Initial LAW setup
* Initial TLB setup
* PCI setup

We start by moving the shared code between P3041DS, P4080DS, and P5020DS
into a common directory to be shared with other P-Series CoreNet boards.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

5 files changed, 265 insertions, 2 deletions

diff --git a/board/freescale/common/Makefile b/board/freescale/common/Makefile
index 9bdf45b..79f9de2 100644
--- a/board/freescale/common/Makefile
+++ b/board/freescale/common/Makefile
@@ -53,12 +53,21 @@ COBJS-$(CONFIG_P3041DS)		+= ics307_clk.o
 COBJS-$(CONFIG_P4080DS)		+= ics307_clk.o
 COBJS-$(CONFIG_P5020DS)		+= ics307_clk.o
 
+# deal with common files for P-series corenet based devices
+SUBLIB-$(CONFIG_P3041DS)	+= p_corenet/libp_corenet.o
+SUBLIB-$(CONFIG_P4080DS)	+= p_corenet/libp_corenet.o
+SUBLIB-$(CONFIG_P5020DS)	+= p_corenet/libp_corenet.o
+
 SRCS	:= $(SOBJS:.o=.S) $(COBJS-y:.o=.c)
 OBJS	:= $(addprefix $(obj),$(COBJS-y))
 SOBJS	:= $(addprefix $(obj),$(SOBJS))
+SUBLIB	:= $(addprefix $(obj),$(SUBLIB-y))
+
+$(LIB):	$(obj).depend $(OBJS) $(SUBLIB)
+	$(call cmd_link_o_target, $(OBJS) $(SUBLIB))
 
-$(LIB):	$(obj).depend $(OBJS)
-	$(call cmd_link_o_target, $(OBJS))
+$(SUBLIB): $(obj).depend
+	$(MAKE) -C $(dir $(subst $(obj),,$@))
 
 clean:
 	rm -f $(SOBJS) $(OBJS)
diff --git a/board/freescale/common/p_corenet/Makefile b/board/freescale/common/p_corenet/Makefile
new file mode 100644
index 0000000..a76f590
--- /dev/null
+++ b/board/freescale/common/p_corenet/Makefile
@@ -0,0 +1,31 @@
+#
+# (C) Copyright 2002-2006
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+# MA 02111-1307 USA
+#
+include $(TOPDIR)/config.mk
+
+LIB	= libp_corenet.o
+
+COBJS-y			+= law.o
+COBJS-$(CONFIG_PCI)	+= pci.o
+COBJS-y			+= tlb.o
+
+include $(TOPDIR)/post/rules.mk
diff --git a/board/freescale/common/p_corenet/law.c b/board/freescale/common/p_corenet/law.c
new file mode 100644
index 0000000..58f23c5
--- /dev/null
+++ b/board/freescale/common/p_corenet/law.c
@@ -0,0 +1,48 @@
+/*
+ * Copyright 2008-2011 Freescale Semiconductor, Inc.
+ *
+ * (C) Copyright 2000
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <asm/fsl_law.h>
+#include <asm/mmu.h>
+
+struct law_entry law_table[] = {
+	SET_LAW(CONFIG_SYS_FLASH_BASE_PHYS, LAW_SIZE_256M, LAW_TRGT_IF_LBC),
+#ifdef CONFIG_SYS_BMAN_MEM_PHYS
+	SET_LAW(CONFIG_SYS_BMAN_MEM_PHYS, LAW_SIZE_2M, LAW_TRGT_IF_BMAN),
+#endif
+#ifdef CONFIG_SYS_QMAN_MEM_PHYS
+	SET_LAW(CONFIG_SYS_QMAN_MEM_PHYS, LAW_SIZE_2M, LAW_TRGT_IF_QMAN),
+#endif
+	SET_LAW(PIXIS_BASE_PHYS, LAW_SIZE_4K, LAW_TRGT_IF_LBC),
+#ifdef CONFIG_SYS_DCSRBAR_PHYS
+	/* Limit DCSR to 32M to access NPC Trace Buffer */
+	SET_LAW(CONFIG_SYS_DCSRBAR_PHYS, LAW_SIZE_32M, LAW_TRGT_IF_DCSR),
+#endif
+#ifdef CONFIG_SYS_NAND_BASE_PHYS
+	SET_LAW(CONFIG_SYS_NAND_BASE_PHYS, LAW_SIZE_1M, LAW_TRGT_IF_LBC),
+#endif
+};
+
+int num_law_entries = ARRAY_SIZE(law_table);
diff --git a/board/freescale/common/p_corenet/pci.c b/board/freescale/common/p_corenet/pci.c
new file mode 100644
index 0000000..18a75de
--- /dev/null
+++ b/board/freescale/common/p_corenet/pci.c
@@ -0,0 +1,39 @@
+/*
+ * Copyright 2007-2011 Freescale Semiconductor, Inc.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <command.h>
+#include <pci.h>
+#include <asm/fsl_pci.h>
+#include <libfdt.h>
+#include <fdt_support.h>
+#include <asm/fsl_serdes.h>
+
+void pci_init_board(void)
+{
+	fsl_pcie_init_board(0);
+}
+
+void pci_of_setup(void *blob, bd_t *bd)
+{
+	FT_FSL_PCI_SETUP;
+}
diff --git a/board/freescale/common/p_corenet/tlb.c b/board/freescale/common/p_corenet/tlb.c
new file mode 100644
index 0000000..5e48d6c
--- /dev/null
+++ b/board/freescale/common/p_corenet/tlb.c
@@ -0,0 +1,136 @@
+/*
+ * Copyright 2008-2011 Freescale Semiconductor, Inc.
+ *
+ * (C) Copyright 2000
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <asm/mmu.h>
+
+struct fsl_e_tlb_entry tlb_table[] = {
+	/* TLB 0 - for temp stack in cache */
+	SET_TLB_ENTRY(0, CONFIG_SYS_INIT_RAM_ADDR,
+		      CONFIG_SYS_INIT_RAM_ADDR_PHYS,
+		      MAS3_SW|MAS3_SR, 0,
+		      0, 0, BOOKE_PAGESZ_4K, 0),
+	SET_TLB_ENTRY(0, CONFIG_SYS_INIT_RAM_ADDR + 4 * 1024,
+		      CONFIG_SYS_INIT_RAM_ADDR_PHYS + 4 * 1024,
+		      MAS3_SW|MAS3_SR, 0,
+		      0, 0, BOOKE_PAGESZ_4K, 0),
+	SET_TLB_ENTRY(0, CONFIG_SYS_INIT_RAM_ADDR + 8 * 1024,
+		      CONFIG_SYS_INIT_RAM_ADDR_PHYS + 8 * 1024,
+		      MAS3_SW|MAS3_SR, 0,
+		      0, 0, BOOKE_PAGESZ_4K, 0),
+	SET_TLB_ENTRY(0, CONFIG_SYS_INIT_RAM_ADDR + 12 * 1024,
+		      CONFIG_SYS_INIT_RAM_ADDR_PHYS + 12 * 1024,
+		      MAS3_SW|MAS3_SR, 0,
+		      0, 0, BOOKE_PAGESZ_4K, 0),
+
+	SET_TLB_ENTRY(0, PIXIS_BASE, PIXIS_BASE_PHYS,
+		      MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+		      0, 0, BOOKE_PAGESZ_4K, 0),
+
+	/* TLB 1 */
+	/* *I*** - Covers boot page */
+#if defined(CONFIG_SYS_RAMBOOT) && defined(CONFIG_SYS_INIT_L3_ADDR)
+	/*
+	 * *I*G - L3SRAM. When L3 is used as 1M SRAM, the address of the
+	 * SRAM is at 0xfff00000, it covered the 0xfffff000.
+	 */
+	SET_TLB_ENTRY(1, CONFIG_SYS_INIT_L3_ADDR, CONFIG_SYS_INIT_L3_ADDR,
+			MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+			0, 0, BOOKE_PAGESZ_1M, 1),
+#else
+	SET_TLB_ENTRY(1, 0xfffff000, 0xfffff000,
+		      MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+		      0, 0, BOOKE_PAGESZ_4K, 1),
+#endif
+
+	/* *I*G* - CCSRBAR */
+	SET_TLB_ENTRY(1, CONFIG_SYS_CCSRBAR, CONFIG_SYS_CCSRBAR_PHYS,
+		      MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+		      0, 1, BOOKE_PAGESZ_16M, 1),
+
+	/* *I*G* - Flash, localbus */
+	/* This will be changed to *I*G* after relocation to RAM. */
+	SET_TLB_ENTRY(1, CONFIG_SYS_FLASH_BASE, CONFIG_SYS_FLASH_BASE_PHYS,
+		      MAS3_SX|MAS3_SR, MAS2_W|MAS2_G,
+		      0, 2, BOOKE_PAGESZ_256M, 1),
+
+	/* *I*G* - PCI */
+	SET_TLB_ENTRY(1, CONFIG_SYS_PCIE1_MEM_VIRT, CONFIG_SYS_PCIE1_MEM_PHYS,
+		      MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+		      0, 3, BOOKE_PAGESZ_1G, 1),
+
+	/* *I*G* - PCI */
+	SET_TLB_ENTRY(1, CONFIG_SYS_PCIE1_MEM_VIRT + 0x40000000,
+		      CONFIG_SYS_PCIE1_MEM_PHYS + 0x40000000,
+		      MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+		      0, 4, BOOKE_PAGESZ_256M, 1),
+
+	SET_TLB_ENTRY(1, CONFIG_SYS_PCIE1_MEM_VIRT + 0x50000000,
+		      CONFIG_SYS_PCIE1_MEM_PHYS + 0x50000000,
+		      MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+		      0, 5, BOOKE_PAGESZ_256M, 1),
+
+	/* *I*G* - PCI I/O */
+	SET_TLB_ENTRY(1, CONFIG_SYS_PCIE1_IO_VIRT, CONFIG_SYS_PCIE1_IO_PHYS,
+		      MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+		      0, 6, BOOKE_PAGESZ_256K, 1),
+
+	/* Bman/Qman */
+#ifdef CONFIG_SYS_BMAN_MEM_PHYS
+	SET_TLB_ENTRY(1, CONFIG_SYS_BMAN_MEM_BASE, CONFIG_SYS_BMAN_MEM_PHYS,
+		      MAS3_SW|MAS3_SR, 0,
+		      0, 9, BOOKE_PAGESZ_1M, 1),
+	SET_TLB_ENTRY(1, CONFIG_SYS_BMAN_MEM_BASE + 0x00100000,
+		      CONFIG_SYS_BMAN_MEM_PHYS + 0x00100000,
+		      MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+		      0, 10, BOOKE_PAGESZ_1M, 1),
+#endif
+#ifdef CONFIG_SYS_QMAN_MEM_PHYS
+	SET_TLB_ENTRY(1, CONFIG_SYS_QMAN_MEM_BASE, CONFIG_SYS_QMAN_MEM_PHYS,
+		      MAS3_SW|MAS3_SR, 0,
+		      0, 11, BOOKE_PAGESZ_1M, 1),
+	SET_TLB_ENTRY(1, CONFIG_SYS_QMAN_MEM_BASE + 0x00100000,
+		      CONFIG_SYS_QMAN_MEM_PHYS + 0x00100000,
+		      MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+		      0, 12, BOOKE_PAGESZ_1M, 1),
+#endif
+#ifdef CONFIG_SYS_DCSRBAR_PHYS
+	SET_TLB_ENTRY(1, CONFIG_SYS_DCSRBAR, CONFIG_SYS_DCSRBAR_PHYS,
+		      MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+		      0, 13, BOOKE_PAGESZ_4M, 1),
+#endif
+#ifdef CONFIG_SYS_NAND_BASE
+	/*
+	 * *I*G - NAND
+	 * entry 14 and 15 has been used hard coded, they will be disabled
+	 * in cpu_init_f, so we use entry 16 for nand.
+	 */
+	SET_TLB_ENTRY(1, CONFIG_SYS_NAND_BASE, CONFIG_SYS_NAND_BASE_PHYS,
+			MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+			0, 16, BOOKE_PAGESZ_1M, 1),
+#endif
+};
+
+int num_tlb_entries = ARRAY_SIZE(tlb_table);