PXA: pleb2: Fix for reloc

Signed-off-by: Marek Vasut <marek.vasut@gmail.com>

5 files changed, 23 insertions, 518 deletions

diff --git a/board/pleb2/Makefile b/board/pleb2/Makefile
index faa26911b8..cb0c3d7cb9 100644
--- a/board/pleb2/Makefile
+++ b/board/pleb2/Makefile
@@ -27,17 +27,15 @@ include $(TOPDIR)/config.mk
 LIB	= $(obj)lib$(BOARD).a
 
 COBJS	:= pleb2.o flash.o
-SOBJS	:= lowlevel_init.o
 
-SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
+SRCS	:= $(COBJS:.o=.c)
 OBJS	:= $(addprefix $(obj),$(COBJS))
-SOBJS	:= $(addprefix $(obj),$(SOBJS))
 
-$(LIB):	$(obj).depend $(OBJS) $(SOBJS)
-	$(AR) $(ARFLAGS) $@ $(OBJS) $(SOBJS)
+$(LIB):	$(obj).depend $(OBJS)
+	$(AR) $(ARFLAGS) $@ $(OBJS)
 
 clean:
-	rm -f $(SOBJS) $(OBJS)
+	rm -f $(OBJS)
 
 distclean:	clean
 	rm -f $(LIB) core *.bak $(obj).depend
diff --git a/board/pleb2/config.mk b/board/pleb2/config.mk
deleted file mode 100644
index 079f58eb2f..0000000000
--- a/board/pleb2/config.mk
+++ /dev/null
@@ -1,3 +0,0 @@
-CONFIG_SYS_TEXT_BASE =  0xa1F80000
-#CONFIG_SYS_TEXT_BASE = 0xa3080000
-#CONFIG_SYS_TEXT_BASE = 0
diff --git a/board/pleb2/lowlevel_init.S b/board/pleb2/lowlevel_init.S
deleted file mode 100644
index b95ff9cf2f..0000000000
--- a/board/pleb2/lowlevel_init.S
+++ /dev/null
@@ -1,488 +0,0 @@
-/*
- * Most of this taken from Redboot hal_platform_setup.h with cleanup
- *
- * 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 <config.h>
-#include <version.h>
-#include <asm/arch/pxa-regs.h>
-
-DRAM_SIZE:  .long   CONFIG_SYS_DRAM_SIZE
-
-/* wait for coprocessor write complete */
-	.macro CPWAIT reg
-	mrc	p15,0,\reg,c2,c0,0
-	mov	\reg,\reg
-	sub	pc,pc,#4
-	.endm
-
-.globl lowlevel_init
-lowlevel_init:
-
-	mov	r10, lr
-
-	/* Set up GPIO pins first */
-
-	ldr	r0,   =GPSR0
-	ldr	r1,   =CONFIG_SYS_GPSR0_VAL
-	str	r1,   [r0]
-
-	ldr	r0,   =GPSR1
-	ldr	r1,   =CONFIG_SYS_GPSR1_VAL
-	str	r1,   [r0]
-
-	ldr	r0,   =GPSR2
-	ldr	r1,   =CONFIG_SYS_GPSR2_VAL
-	str	r1,   [r0]
-
-	ldr	r0,   =GPCR0
-	ldr	r1,   =CONFIG_SYS_GPCR0_VAL
-	str	r1,   [r0]
-
-	ldr	r0,   =GPCR1
-	ldr	r1,   =CONFIG_SYS_GPCR1_VAL
-	str	r1,   [r0]
-
-	ldr	r0,   =GPCR2
-	ldr	r1,   =CONFIG_SYS_GPCR2_VAL
-	str	r1,   [r0]
-
-	ldr	r0,   =GRER0
-	ldr	r1,   =CONFIG_SYS_GRER0_VAL
-	str	r1,   [r0]
-
-	ldr	r0,   =GRER1
-	ldr	r1,   =CONFIG_SYS_GRER1_VAL
-	str	r1,   [r0]
-
-	ldr	r0,   =GRER2
-	ldr	r1,   =CONFIG_SYS_GRER2_VAL
-	str	r1,   [r0]
-
-	ldr	r0,   =GFER0
-	ldr	r1,   =CONFIG_SYS_GFER0_VAL
-	str	r1,   [r0]
-
-	ldr	r0,   =GFER1
-	ldr	r1,   =CONFIG_SYS_GFER1_VAL
-	str	r1,   [r0]
-
-	ldr	r0,   =GFER2
-	ldr	r1,   =CONFIG_SYS_GFER2_VAL
-	str	r1,   [r0]
-
-	ldr	r0,   =GPDR0
-	ldr	r1,   =CONFIG_SYS_GPDR0_VAL
-	str	r1,   [r0]
-
-	ldr	r0,   =GPDR1
-	ldr	r1,   =CONFIG_SYS_GPDR1_VAL
-	str	r1,   [r0]
-
-	ldr	r0,   =GPDR2
-	ldr	r1,   =CONFIG_SYS_GPDR2_VAL
-	str	r1,   [r0]
-
-	ldr	r0,   =GAFR0_L
-	ldr	r1,   =CONFIG_SYS_GAFR0_L_VAL
-	str	r1,   [r0]
-
-	ldr	r0,   =GAFR0_U
-	ldr	r1,   =CONFIG_SYS_GAFR0_U_VAL
-	str	r1,   [r0]
-
-	ldr	r0,   =GAFR1_L
-	ldr	r1,   =CONFIG_SYS_GAFR1_L_VAL
-	str	r1,   [r0]
-
-	ldr	r0,   =GAFR1_U
-	ldr	r1,   =CONFIG_SYS_GAFR1_U_VAL
-	str	r1,   [r0]
-
-	ldr	r0,   =GAFR2_L
-	ldr	r1,   =CONFIG_SYS_GAFR2_L_VAL
-	str	r1,   [r0]
-
-	ldr	r0,   =GAFR2_U
-	ldr	r1,   =CONFIG_SYS_GAFR2_U_VAL
-	str	r1,   [r0]
-
-	/* enable GPIO pins */
-	ldr	r0,   =PSSR
-	ldr	r1,   =CONFIG_SYS_PSSR_VAL
-	str	r1,   [r0]
-
-
-/*********************************************************************
-    Initlialize Memory Controller
-
-    See PXA250 Operating System Developer's Guide
-
-    pause for 200 uSecs- allow internal clocks to settle
-    *Note: only need this if hard reset... doing it anyway for now
-*/
-
-	@ Step 1
-	@ ---- Wait 200 usec
-	ldr	r3, =OSCR	@ reset the OS Timer Count to zero
-	mov	r2, #0
-	str	r2, [r3]
-	ldr	r4, =0x300	@ really 0x2E1 is about 200usec, so 0x300 should be plenty
-1:
-	ldr	r2, [r3]
-	cmp	r4, r2
-	bgt	1b
-
-mem_init:
-	@ get memory controller base address
-	ldr	r1,  =MEMC_BASE
-
-@****************************************************************************
-@  Step 2
-@
-
-	@ Step 2a
-	@ write msc0, read back to ensure data latches
-	@
-	ldr	r2,   =CONFIG_SYS_MSC0_VAL
-	str	r2,   [r1, #MSC0_OFFSET]
-	ldr	r2,   [r1, #MSC0_OFFSET]
-
-	@ write msc1
-	ldr	r2,  =CONFIG_SYS_MSC1_VAL
-	str	r2,  [r1, #MSC1_OFFSET]
-	ldr	r2,  [r1, #MSC1_OFFSET]
-
-	@ write msc2
-	ldr	r2,  =CONFIG_SYS_MSC2_VAL
-	str	r2,  [r1, #MSC2_OFFSET]
-	ldr	r2,  [r1, #MSC2_OFFSET]
-
-
-@ Step 2b
-	@ write mecr
-	ldr	r2,  =CONFIG_SYS_MECR_VAL
-	str	r2,  [r1, #MECR_OFFSET]
-
-	@ write mcmem0
-	ldr	r2,  =CONFIG_SYS_MCMEM0_VAL
-	str	r2,  [r1, #MCMEM0_OFFSET]
-
-	@ write mcmem1
-	ldr	r2,  =CONFIG_SYS_MCMEM1_VAL
-	str	r2,  [r1, #MCMEM1_OFFSET]
-
-	@ write mcatt0
-	ldr	r2,  =CONFIG_SYS_MCATT0_VAL
-	str	r2,  [r1, #MCATT0_OFFSET]
-
-	@ write mcatt1
-	ldr	r2,  =CONFIG_SYS_MCATT1_VAL
-	str	r2,  [r1, #MCATT1_OFFSET]
-
-	@ write mcio0
-	ldr	r2,  =CONFIG_SYS_MCIO0_VAL
-	str	r2,  [r1, #MCIO0_OFFSET]
-
-	@ write mcio1
-	ldr	r2,  =CONFIG_SYS_MCIO1_VAL
-	str	r2,  [r1, #MCIO1_OFFSET]
-
-@ Step 2c
-	@ fly-by-dma is defeatured on this part
-	@ write flycnfg
-	@ldr	r2,  =CONFIG_SYS_FLYCNFG_VAL
-	@str	r2,  [r1, #FLYCNFG_OFFSET]
-
-/* FIXME Does this sequence really make sense */
-#ifdef REDBOOT_WAY
-	@ Step 2d
-	@ get the mdrefr settings
-	ldr	r3,  =CONFIG_SYS_MDREFR_VAL
-
-	@ extract DRI field (we need a valid DRI field)
-	@
-	ldr	r2,  =0xFFF
-
-	@ valid DRI field in r3
-	@
-	and	r3,  r3,  r2
-
-	@ get the reset state of MDREFR
-	@
-	ldr	r4,  [r1, #MDREFR_OFFSET]
-
-	@ clear the DRI field
-	@
-	bic	r4,  r4,  r2
-
-	@ insert the valid DRI field loaded above
-	@
-	orr	r4,  r4,  r3
-
-	@ write back mdrefr
-	@
-	str	r4,  [r1, #MDREFR_OFFSET]
-
-	@ *Note: preserve the mdrefr value in r4 *
-
-@****************************************************************************
-@  Step 3
-@
-@ NO SRAM
-
-	mov	pc, r10
-
-
-@****************************************************************************
-@  Step 4
-@
-
-	@ Assumes previous mdrefr value in r4, if not then read current mdrefr
-
-	@ clear the free-running clock bits
-	@ (clear K0Free, K1Free, K2Free
-	@
-	bic	r4,  r4,  #(0x00800000 | 0x01000000 | 0x02000000)
-
-	@ set K0RUN for CPLD clock
-	@
-	orr	r4,  r4,  #0x00002000
-
-	@ set K1RUN if bank 0 installed
-	@
-	orr	r4,  r4,  #0x00010000
-
-	@ write back mdrefr
-	@
-	str	r4,  [r1, #MDREFR_OFFSET]
-	ldr	r4,  [r1, #MDREFR_OFFSET]
-
-	@ deassert SLFRSH
-	@
-	bic	r4,  r4,  #0x00400000
-
-	@ write back mdrefr
-	@
-	str	r4,  [r1, #MDREFR_OFFSET]
-
-	@ assert E1PIN
-	@
-	orr	r4,  r4,  #0x00008000
-
-	@ write back mdrefr
-	@
-	str	r4,  [r1, #MDREFR_OFFSET]
-	ldr	r4,  [r1, #MDREFR_OFFSET]
-	nop
-	nop
-#else
-	@ Step 2d
-	@ get the mdrefr settings
-	ldr	r3,  =CONFIG_SYS_MDREFR_VAL
-
-	@ write back mdrefr
-	@
-	str	r4,  [r1, #MDREFR_OFFSET]
-
-	@  Step 4
-
-	@ set K0RUN for CPLD clock
-	@
-	orr	r4,  r4,  #0x00002000
-
-	@ set K1RUN for bank 0
-	@
-	orr	r4,  r4,  #0x00010000
-
-	@ write back mdrefr
-	@
-	str	r4,  [r1, #MDREFR_OFFSET]
-	ldr	r4,  [r1, #MDREFR_OFFSET]
-
-	@ deassert SLFRSH
-	@
-	bic	r4,  r4,  #0x00400000
-
-	@ write back mdrefr
-	@
-	str	r4,  [r1, #MDREFR_OFFSET]
-
-	@ assert E1PIN
-	@
-	orr	r4,  r4,  #0x00008000
-
-	@ write back mdrefr
-	@
-	str	r4,  [r1, #MDREFR_OFFSET]
-	ldr	r4,  [r1, #MDREFR_OFFSET]
-	nop
-	nop
-#endif
-
-	@ Step 4d
-	@ fetch platform value of mdcnfg
-	@
-	ldr	r2,  =CONFIG_SYS_MDCNFG_VAL
-
-	@ disable all sdram banks
-	@
-	bic	r2,  r2,  #(MDCNFG_DE0 | MDCNFG_DE1)
-	bic	r2,  r2,  #(MDCNFG_DE2 | MDCNFG_DE3)
-
-	@ program banks 0/1 for bus width
-	@
-	bic	r2,  r2,  #MDCNFG_DWID0	     @0=32-bit
-
-	@ write initial value of mdcnfg, w/o enabling sdram banks
-	@
-	str	r2,  [r1, #MDCNFG_OFFSET]
-
-	@ Step 4e
-	@ pause for 200 uSecs
-	@
-	ldr	r3, =OSCR	@ reset the OS Timer Count to zero
-	mov	r2, #0
-	str	r2, [r3]
-	ldr	r4, =0x300			@ really 0x2E1 is about 200usec, so 0x300 should be plenty
-	1:
-	ldr	r2, [r3]
-	cmp	r4, r2
-	bgt	1b
-
-	/* Why is this here??? */
-	mov	r0, #0x78		 @turn everything off
-	mcr	p15, 0, r0, c1, c0, 0	   @(caches off, MMU off, etc.)
-
-	@ Step 4f
-	@ Access memory *not yet enabled* for CBR refresh cycles (8)
-	@ - CBR is generated for all banks
-
-	ldr	r2, =CONFIG_SYS_DRAM_BASE
-	str	r2, [r2]
-	str	r2, [r2]
-	str	r2, [r2]
-	str	r2, [r2]
-	str	r2, [r2]
-	str	r2, [r2]
-	str	r2, [r2]
-	str	r2, [r2]
-
-	@ Step 4g
-	@get memory controller base address
-	@
-	ldr	r1,  =MEMC_BASE
-
-	@fetch current mdcnfg value
-	@
-	ldr	r3,  [r1, #MDCNFG_OFFSET]
-
-	@enable sdram bank 0 if installed (must do for any populated bank)
-	@
-	orr	r3,  r3,  #MDCNFG_DE0
-
-	@write back mdcnfg, enabling the sdram bank(s)
-	@
-	str	r3,  [r1, #MDCNFG_OFFSET]
-
-	@ Step 4h
-	@ write mdmrs
-	@
-	ldr	r2,  =CONFIG_SYS_MDMRS_VAL
-	str	r2,  [r1, #MDMRS_OFFSET]
-
-	@ Done Memory Init
-
-	/*SET_LED 6 */
-
-	@********************************************************************
-	@ Disable (mask) all interrupts at the interrupt controller
-	@
-
-	@ clear the interrupt level register (use IRQ, not FIQ)
-	@
-	mov	r1, #0
-	ldr	r2,  =ICLR
-	str	r1,  [r2]
-
-	@ Set interrupt mask register
-	@
-	ldr	r1,  =CONFIG_SYS_ICMR_VAL
-	ldr	r2,  =ICMR
-	str	r1,  [r2]
-
-	@ ********************************************************************
-	@ Disable the peripheral clocks, and set the core clock
-	@
-
-	@ Turn Off ALL on-chip peripheral clocks for re-configuration
-	@
-	ldr	r1,  =CKEN
-	mov	r2,  #0
-	str	r2,  [r1]
-
-	@ set core clocks
-	@
-	ldr	r2,  =CONFIG_SYS_CCCR_VAL
-	ldr	r1,  =CCCR
-	str	r2,  [r1]
-
-	#ifdef ENABLE32KHZ
-	@ enable the 32Khz oscillator for RTC and PowerManager
-	@
-	ldr	r1,  =OSCC
-	mov	r2,  #OSCC_OON
-	str	r2,  [r1]
-
-	@ NOTE:	 spin here until OSCC.OOK get set,
-	@	 meaning the PLL has settled.
-	@
-60:
-	ldr	r2, [r1]
-	ands	r2, r2, #1
-	beq	60b
-#endif
-
-	@ Turn on needed clocks
-	@
-	ldr	r1,  =CKEN
-	ldr	r2,  =CONFIG_SYS_CKEN_VAL
-	str	r2,  [r1]
-
-	/*SET_LED 7 */
-
-/* Is this needed???? */
-#define NODEBUG
-#ifdef NODEBUG
-   /*Disable software and data breakpoints */
-	mov	r0,#0
-	mcr	p15,0,r0,c14,c8,0  /* ibcr0 */
-	mcr	p15,0,r0,c14,c9,0  /* ibcr1 */
-	mcr	p15,0,r0,c14,c4,0  /* dbcon */
-
-	/*Enable all debug functionality */
-	mov	r0,#0x80000000
-	mcr	p14,0,r0,c10,c0,0  /* dcsr */
-
-#endif
-
-	mov	pc, r10
-
-@ End lowlevel_init
diff --git a/board/pleb2/pleb2.c b/board/pleb2/pleb2.c
index 97c37eaa39..5a16cc76e8 100644
--- a/board/pleb2/pleb2.c
+++ b/board/pleb2/pleb2.c
@@ -36,8 +36,9 @@ DECLARE_GLOBAL_DATA_PTR;
 
 int board_init (void)
 {
-	/* memory and cpu-speed are setup before relocation */
-	/* so we do _nothing_ here */
+	/* We have RAM, disable cache */
+	dcache_disable();
+	icache_disable();
 
 	/* arch number of Lubbock-Board */
 	gd->bd->bi_arch_number = MACH_TYPE_PLEB2;
@@ -55,17 +56,16 @@ int board_late_init(void)
 	return 0;
 }
 
+extern void pxa_dram_init(void);
+int dram_init(void)
+{
+	pxa_dram_init();
+	gd->ram_size = PHYS_SDRAM_1_SIZE;
+	return 0;
+}
 
-int dram_init (void)
+void dram_init_banksize(void)
 {
 	gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
 	gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
-	gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
-	gd->bd->bi_dram[1].size = PHYS_SDRAM_2_SIZE;
-	gd->bd->bi_dram[2].start = PHYS_SDRAM_3;
-	gd->bd->bi_dram[2].size = PHYS_SDRAM_3_SIZE;
-	gd->bd->bi_dram[3].start = PHYS_SDRAM_4;
-	gd->bd->bi_dram[3].size = PHYS_SDRAM_4_SIZE;
-
-	return 0;
 }
diff --git a/include/configs/pleb2.h b/include/configs/pleb2.h
index 3b6e60afe9..b366f381b1 100644
--- a/include/configs/pleb2.h
+++ b/include/configs/pleb2.h
@@ -39,6 +39,7 @@
 #undef CONFIG_LCD
 #undef CONFIG_MMC
 #define BOARD_LATE_INIT		1
+#define	CONFIG_SYS_TEXT_BASE	0x0
 
 #undef CONFIG_USE_IRQ			/* we don't need IRQ/FIQ stuff */
 
@@ -155,15 +156,9 @@
 /*
  * Physical Memory Map
  */
-#define CONFIG_NR_DRAM_BANKS	4	   /* we have 2 banks of DRAM */
+#define CONFIG_NR_DRAM_BANKS	1	   /* we have 1 bank of DRAM */
 #define PHYS_SDRAM_1		0xa0000000 /* SDRAM Bank #1 */
 #define PHYS_SDRAM_1_SIZE	0x02000000 /* 32 MB */
-#define PHYS_SDRAM_2		0xa4000000 /* SDRAM Bank #2 */
-#define PHYS_SDRAM_2_SIZE	0x00000000 /* 0 MB */
-#define PHYS_SDRAM_3		0xa8000000 /* SDRAM Bank #3 */
-#define PHYS_SDRAM_3_SIZE	0x00000000 /* 0 MB */
-#define PHYS_SDRAM_4		0xac000000 /* SDRAM Bank #4 */
-#define PHYS_SDRAM_4_SIZE	0x00000000 /* 0 MB */
 
 #define PHYS_FLASH_1		0x00000000 /* Flash Bank #1 */
 #define PHYS_FLASH_2		0x04000000 /* Flash Bank #2 */
@@ -213,9 +208,9 @@
 #define CONFIG_SYS_GAFR2_U_VAL		0x00000000
 
 #define CONFIG_SYS_PSSR_VAL		0x20
-#define CONFIG_SYS_CCCR_VAL	    0x00000141	/* 100 MHz memory, 200 MHz CPU	*/
-#define CONFIG_SYS_CKEN_VAL	    0x00000060	/* FFUART and STUART enabled	*/
-#define CONFIG_SYS_ICMR_VAL	    0x00000000	/* No interrupts enabled	*/
+#define CONFIG_SYS_CCCR		    0x00000141	/* 100 MHz memory, 200 MHz CPU	*/
+#define CONFIG_SYS_CKEN		    0x00000060	/* FFUART and STUART enabled	*/
+#define CONFIG_SYS_ICMR		    0x00000000	/* No interrupts enabled	*/
 
 /*
  * Memory settings
@@ -231,6 +226,9 @@
 					   /* bits set in lowlevel_init.S	*/
 #define CONFIG_SYS_MDMRS_VAL		0x00000000
 
+#define	CONFIG_SYS_FLYCNFG_VAL		0x00000000
+#define	CONFIG_SYS_SXCNFG_VAL		0x00000000
+
 /*
  * PCMCIA and CF Interfaces
  */