[U-Boot-Users] [PATCH] mpc86xx: Convert to using new law setup code
Becky Bruce
bgill at freescale.com
Fri Jan 18 01:45:28 CET 2008
This patch converts 86xx to the new law setup in C that Kumar posted
recently.
Signed-off-by: Becky Bruce <becky.bruce at freescale.com>
---
board/freescale/mpc8641hpcn/Makefile | 2 +-
board/freescale/mpc8641hpcn/law.c | 64 ++++++++++++++++++++++++++++++++++
cpu/mpc86xx/cpu_init.c | 7 ++++
cpu/mpc86xx/spd_sdram.c | 16 ++++++++-
cpu/mpc86xx/start.S | 2 +
include/configs/MPC8641HPCN.h | 1 +
6 files changed, 90 insertions(+), 2 deletions(-)
create mode 100644 board/freescale/mpc8641hpcn/law.c
diff --git a/board/freescale/mpc8641hpcn/Makefile b/board/freescale/mpc8641hpcn/Makefile
index 201da3e..e73e7ba 100644
--- a/board/freescale/mpc8641hpcn/Makefile
+++ b/board/freescale/mpc8641hpcn/Makefile
@@ -25,7 +25,7 @@ include $(TOPDIR)/config.mk
LIB = $(obj)lib$(BOARD).a
-COBJS := $(BOARD).o
+COBJS := $(BOARD).o law.o
SOBJS := init.o
diff --git a/board/freescale/mpc8641hpcn/law.c b/board/freescale/mpc8641hpcn/law.c
new file mode 100644
index 0000000..245f420
--- /dev/null
+++ b/board/freescale/mpc8641hpcn/law.c
@@ -0,0 +1,64 @@
+/*
+ * Copyright 2008 Freescale Semiconductor, Inc.
+ *
+ * (C) Copyright 2000
+ * Wolfgang Denk, DENX Software Engineering, wd at 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>
+
+/*
+ * LAW(Local Access Window) configuration:
+ *
+ * 0x0000_0000 0x7fff_ffff DDR 2G
+ * 0x8000_0000 0x9fff_ffff PCI1 MEM 512M
+ * 0xa000_0000 0xbfff_ffff PCI2 MEM 512M
+ * 0xc000_0000 0xdfff_ffff RapidIO 512M
+ * 0xe200_0000 0xe2ff_ffff PCI1 IO 16M
+ * 0xe300_0000 0xe3ff_ffff PCI2 IO 16M
+ * 0xf800_0000 0xf80f_ffff CCSRBAR 1M
+ * 0xf810_0000 0xf81f_ffff PIXIS 1M
+ * 0xfe00_0000 0xffff_ffff FLASH (boot bank) 32M
+ *
+ * Notes:
+ * CCSRBAR don't need a configured Local Access Window.
+ * If flash is 8M at default position (last 8M), no LAW needed.
+ */
+
+struct law_entry law_table[] = {
+#if !defined(CONFIG_SPD_EEPROM)
+ SET_LAW_ENTRY(1, CFG_DDR_SDRAM_BASE, LAW_SIZE_256M, LAW_TRGT_IF_DDR_1),
+#endif
+ SET_LAW_ENTRY(2, CFG_PCI1_MEM_BASE, LAW_SIZE_512M, LAW_TRGT_IF_PCI_1),
+ SET_LAW_ENTRY(3, CFG_PCI2_MEM_BASE, LAW_SIZE_512M, LAW_TRGT_IF_PCI_2),
+ SET_LAW_ENTRY(4, PIXIS_BASE, LAW_SIZE_2M, LAW_TRGT_IF_LBC),
+ SET_LAW_ENTRY(5, CFG_PCI1_IO_PHYS, LAW_SIZE_16M, LAW_TRGT_IF_PCI_1),
+ SET_LAW_ENTRY(6, CFG_PCI2_IO_PHYS, LAW_SIZE_16M, LAW_TRGT_IF_PCI_2),
+ SET_LAW_ENTRY(7, (CFG_FLASH_BASE & 0xfe000000), LAW_SIZE_32M, LAW_TRGT_IF_LBC),
+#if !defined(CONFIG_SPD_EEPROM)
+ SET_LAW_ENTRY(8, CFG_DDR_SDRAM_BASE, LAW_SIZE_256M, LAW_TRGT_IF_DDR_2),
+#endif
+ SET_LAW_ENTRY(9, CFG_RIO_MEM_PHYS, LAW_SIZE_512M, LAW_TRGT_IF_RIO)
+};
+
+int num_law_entries = ARRAY_SIZE(law_table);
diff --git a/cpu/mpc86xx/cpu_init.c b/cpu/mpc86xx/cpu_init.c
index 4f8956e..ab5906d 100644
--- a/cpu/mpc86xx/cpu_init.c
+++ b/cpu/mpc86xx/cpu_init.c
@@ -49,6 +49,10 @@ void cpu_init_f(void)
/* Clear initial global data */
memset ((void *) gd, 0, sizeof (gd_t));
+#ifdef CONFIG_FSL_LAW
+ init_laws();
+#endif
+
/* Map banks 0 and 1 to the FLASH banks 0 and 1 at preliminary
* addresses - these have to be modified later when FLASH size
* has been determined
@@ -114,5 +118,8 @@ void cpu_init_f(void)
*/
int cpu_init_r(void)
{
+#ifdef CONFIG_FSL_LAW
+ disable_law(0);
+#endif
return 0;
}
diff --git a/cpu/mpc86xx/spd_sdram.c b/cpu/mpc86xx/spd_sdram.c
index 54e40f1..bfea4b3 100644
--- a/cpu/mpc86xx/spd_sdram.c
+++ b/cpu/mpc86xx/spd_sdram.c
@@ -27,7 +27,7 @@
#include <i2c.h>
#include <spd.h>
#include <asm/mmu.h>
-
+#include <asm/fsl_law.h>
#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
extern void dma_init(void);
@@ -1179,12 +1179,16 @@ spd_sdram(void)
/*
* Set up LAWBAR for DDR 1 space.
*/
+#ifdef CONFIG_FSL_LAW
+ set_law(1, CFG_DDR_SDRAM_BASE, law_size_interleaved, LAW_TRGT_IF_DDR_INTRLV);
+#else
mcm->lawbar1 = ((CFG_DDR_SDRAM_BASE >> 12) & 0xfffff);
mcm->lawar1 = (LAWAR_EN
| LAWAR_TRGT_IF_DDR_INTERLEAVED
| (LAWAR_SIZE & law_size_interleaved));
debug("DDR: LAWBAR1=0x%08x\n", mcm->lawbar1);
debug("DDR: LAWAR1=0x%08x\n", mcm->lawar1);
+#endif
debug("Interleaved memory size is 0x%08lx\n", memsize_total);
#ifdef CONFIG_DDR_INTERLEAVE
@@ -1239,12 +1243,16 @@ spd_sdram(void)
/*
* Set up LAWBAR for DDR 1 space.
*/
+#ifdef CONFIG_FSL_LAW
+ set_law(1, CFG_DDR_SDRAM_BASE, law_size_ddr1, LAW_TRGT_IF_DDR_1);
+#else
mcm->lawbar1 = ((CFG_DDR_SDRAM_BASE >> 12) & 0xfffff);
mcm->lawar1 = (LAWAR_EN
| LAWAR_TRGT_IF_DDR1
| (LAWAR_SIZE & law_size_ddr1));
debug("DDR: LAWBAR1=0x%08x\n", mcm->lawbar1);
debug("DDR: LAWAR1=0x%08x\n", mcm->lawar1);
+#endif
}
#if (CONFIG_NUM_DDR_CONTROLLERS > 1)
@@ -1269,6 +1277,11 @@ spd_sdram(void)
/*
* Set up LAWBAR for DDR 2 space.
*/
+#ifdef CONFIG_FSL_LAW
+ set_law(8,
+ (ddr1_enabled ? (memsize_ddr1 * 1024 * 1024) : CFG_DDR_SDRAM_BASE),
+ law_size_ddr2, LAW_TRGT_IF_DDR_2);
+#else
if (ddr1_enabled)
mcm->lawbar8 = (((memsize_ddr1 * 1024 * 1024) >> 12)
& 0xfffff);
@@ -1280,6 +1293,7 @@ spd_sdram(void)
| (LAWAR_SIZE & law_size_ddr2));
debug("\nDDR: LAWBAR8=0x%08x\n", mcm->lawbar8);
debug("DDR: LAWAR8=0x%08x\n", mcm->lawar8);
+#endif
}
debug("\nMemory size of DDR2 = 0x%08lx\n", memsize_ddr2);
diff --git a/cpu/mpc86xx/start.S b/cpu/mpc86xx/start.S
index 6cf145f..99f96f8 100644
--- a/cpu/mpc86xx/start.S
+++ b/cpu/mpc86xx/start.S
@@ -283,8 +283,10 @@ in_flash:
bl setup_ccsrbar
#endif
+#ifndef CONFIG_FSL_LAW
bl law_entry
sync
+#endif
/* run low-level CPU init code (from Flash) */
bl cpu_init_f
diff --git a/include/configs/MPC8641HPCN.h b/include/configs/MPC8641HPCN.h
index ab875f0..be96696 100644
--- a/include/configs/MPC8641HPCN.h
+++ b/include/configs/MPC8641HPCN.h
@@ -49,6 +49,7 @@
#define CONFIG_PCI1 1 /* PCIE controler 1 (ULI bridge) */
#define CONFIG_PCI2 1 /* PCIE controler 2 (slot) */
#define CONFIG_FSL_PCI_INIT 1 /* Use common FSL init code */
+#define CONFIG_FSL_LAW 1 /* Use common FSL law init code */
#define CONFIG_TSEC_ENET /* tsec ethernet support */
#define CONFIG_ENV_OVERWRITE
--
1.5.3.7
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