LIB = $(obj)lib$(BOARD).a
COBJS := pxa_idp.o
-SOBJS := memsetup.o
+SOBJS := lowlevel_init.o
SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c)
OBJS := $(addprefix $(obj),$(COBJS))
#TEXT_BASE = 0xa1700000
-TEXT_BASE = 0xa3000000
+TEXT_BASE = 0xa3080000
#TEXT_BASE = 0
--- /dev/null
+/*
+ * Most of this taken from Redboot hal_platform_setup.h with cleanup
+ *
+ * NOTE: I haven't clean this up considerably, just enough to get it
+ * running. See hal_platform_setup.h for the source. See
+ * board/cradle/lowlevel_init.S for another PXA250 setup that is
+ * much cleaner.
+ *
+ * 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 CFG_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
+
+/*
+ * Memory setup
+ */
+.globl lowlevel_init
+lowlevel_init:
+
+ mov r10, lr
+
+#ifdef DEBUG_BLINK_ENABLE
+ /* 3rd blink */
+ bl blink
+#endif
+
+ /* Set up GPIO pins first ----------------------------------------- */
+ ldr r0, =GPSR0
+ ldr r1, =CFG_GPSR0_VAL
+ str r1, [r0]
+
+ ldr r0, =GPSR1
+ ldr r1, =CFG_GPSR1_VAL
+ str r1, [r0]
+
+ ldr r0, =GPSR2
+ ldr r1, =CFG_GPSR2_VAL
+ str r1, [r0]
+
+ ldr r0, =GPCR0
+ ldr r1, =CFG_GPCR0_VAL
+ str r1, [r0]
+
+ ldr r0, =GPCR1
+ ldr r1, =CFG_GPCR1_VAL
+ str r1, [r0]
+
+ ldr r0, =GPCR2
+ ldr r1, =CFG_GPCR2_VAL
+ str r1, [r0]
+
+ ldr r0, =GPDR0
+ ldr r1, =CFG_GPDR0_VAL
+ str r1, [r0]
+
+ ldr r0, =GPDR1
+ ldr r1, =CFG_GPDR1_VAL
+ str r1, [r0]
+
+ ldr r0, =GPDR2
+ ldr r1, =CFG_GPDR2_VAL
+ str r1, [r0]
+
+ ldr r0, =GAFR0_L
+ ldr r1, =CFG_GAFR0_L_VAL
+ str r1, [r0]
+
+ ldr r0, =GAFR0_U
+ ldr r1, =CFG_GAFR0_U_VAL
+ str r1, [r0]
+
+ ldr r0, =GAFR1_L
+ ldr r1, =CFG_GAFR1_L_VAL
+ str r1, [r0]
+
+ ldr r0, =GAFR1_U
+ ldr r1, =CFG_GAFR1_U_VAL
+ str r1, [r0]
+
+ ldr r0, =GAFR2_L
+ ldr r1, =CFG_GAFR2_L_VAL
+ str r1, [r0]
+
+ ldr r0, =GAFR2_U
+ ldr r1, =CFG_GAFR2_U_VAL
+ str r1, [r0]
+
+ ldr r0, =PSSR /* enable GPIO pins */
+ ldr r1, =CFG_PSSR_VAL
+ str r1, [r0]
+
+#ifdef DEBUG_BLINK_ENABLE
+ /* 4th debug blink */
+ bl blink
+#endif
+
+ /* ---------------------------------------------------------------- */
+ /* Enable memory interface */
+ /* */
+ /* The sequence below is based on the recommended init steps */
+ /* detailed in the Intel PXA250 Operating Systems Developers Guide, */
+ /* Chapter 10. */
+ /* ---------------------------------------------------------------- */
+
+ /* ---------------------------------------------------------------- */
+ /* Step 1: Wait for at least 200 microsedonds to allow internal */
+ /* clocks to settle. Only necessary after hard reset... */
+ /* FIXME: can be optimized later */
+ /* ---------------------------------------------------------------- */
+
+ 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:
+
+ ldr r1, =MEMC_BASE /* get memory controller base addr. */
+
+ /* ---------------------------------------------------------------- */
+ /* Step 2a: Initialize Asynchronous static memory controller */
+ /* ---------------------------------------------------------------- */
+
+ /* MSC registers: timing, bus width, mem type */
+
+ /* MSC0: nCS(0,1) */
+ ldr r2, =CFG_MSC0_VAL
+ str r2, [r1, #MSC0_OFFSET]
+ ldr r2, [r1, #MSC0_OFFSET] /* read back to ensure */
+ /* that data latches */
+ /* MSC1: nCS(2,3) */
+ ldr r2, =CFG_MSC1_VAL
+ str r2, [r1, #MSC1_OFFSET]
+ ldr r2, [r1, #MSC1_OFFSET]
+
+ /* MSC2: nCS(4,5) */
+ ldr r2, =CFG_MSC2_VAL
+ str r2, [r1, #MSC2_OFFSET]
+ ldr r2, [r1, #MSC2_OFFSET]
+
+ /* ---------------------------------------------------------------- */
+ /* Step 2b: Initialize Card Interface */
+ /* ---------------------------------------------------------------- */
+
+ /* MECR: Memory Expansion Card Register */
+ ldr r2, =CFG_MECR_VAL
+ str r2, [r1, #MECR_OFFSET]
+ ldr r2, [r1, #MECR_OFFSET]
+
+ /* MCMEM0: Card Interface slot 0 timing */
+ ldr r2, =CFG_MCMEM0_VAL
+ str r2, [r1, #MCMEM0_OFFSET]
+ ldr r2, [r1, #MCMEM0_OFFSET]
+
+ /* MCMEM1: Card Interface slot 1 timing */
+ ldr r2, =CFG_MCMEM1_VAL
+ str r2, [r1, #MCMEM1_OFFSET]
+ ldr r2, [r1, #MCMEM1_OFFSET]
+
+ /* MCATT0: Card Interface Attribute Space Timing, slot 0 */
+ ldr r2, =CFG_MCATT0_VAL
+ str r2, [r1, #MCATT0_OFFSET]
+ ldr r2, [r1, #MCATT0_OFFSET]
+
+ /* MCATT1: Card Interface Attribute Space Timing, slot 1 */
+ ldr r2, =CFG_MCATT1_VAL
+ str r2, [r1, #MCATT1_OFFSET]
+ ldr r2, [r1, #MCATT1_OFFSET]
+
+ /* MCIO0: Card Interface I/O Space Timing, slot 0 */
+ ldr r2, =CFG_MCIO0_VAL
+ str r2, [r1, #MCIO0_OFFSET]
+ ldr r2, [r1, #MCIO0_OFFSET]
+
+ /* MCIO1: Card Interface I/O Space Timing, slot 1 */
+ ldr r2, =CFG_MCIO1_VAL
+ str r2, [r1, #MCIO1_OFFSET]
+ ldr r2, [r1, #MCIO1_OFFSET]
+
+#ifdef DEBUG_BLINK_ENABLE
+ /* 5th blink */
+ bl blink
+#endif
+
+ /* ---------------------------------------------------------------- */
+ /* Step 2c: Write FLYCNFG FIXME: what's that??? */
+ /* ---------------------------------------------------------------- */
+
+ /* ---------------------------------------------------------------- */
+ /* Step 2d: Initialize Timing for Sync Memory (SDCLK0) */
+ /* ---------------------------------------------------------------- */
+
+ /* Before accessing MDREFR we need a valid DRI field, so we set */
+ /* this to power on defaults + DRI field. */
+
+ ldr r3, =CFG_MDREFR_VAL
+ ldr r2, =0xFFF
+ and r3, r3, r2
+ ldr r4, =0x03ca4000
+ orr r4, r4, r3
+ str r4, [r1, #MDREFR_OFFSET] /* write back MDREFR */
+ ldr r4, [r1, #MDREFR_OFFSET]
+
+ /* Note: preserve the mdrefr value in r4 */
+
+ /* ---------------------------------------------------------------- */
+ /* Step 3: Initialize Synchronous Static Memory (Flash/Peripherals) */
+ /* ---------------------------------------------------------------- */
+
+ /* Initialize SXCNFG register. Assert the enable bits */
+
+ /* Write SXMRS to cause an MRS command to all enabled banks of */
+ /* synchronous static memory. Note that SXLCR need not be written */
+ /* at this time. */
+
+ /* FIXME: we use async mode for now */
+
+ /* ---------------------------------------------------------------- */
+ /* Step 4: Initialize SDRAM */
+ /* ---------------------------------------------------------------- */
+
+ /* set MDREFR according to user define with exception of a few bits */
+
+ ldr r4, =CFG_MDREFR_VAL
+ orr r4, r4, #(MDREFR_SLFRSH)
+ bic r4, r4, #(MDREFR_E1PIN|MDREFR_E0PIN)
+ str r4, [r1, #MDREFR_OFFSET] /* write back MDREFR */
+ ldr r4, [r1, #MDREFR_OFFSET]
+
+ /* Step 4b: de-assert MDREFR:SLFRSH. */
+
+ bic r4, r4, #(MDREFR_SLFRSH)
+ str r4, [r1, #MDREFR_OFFSET] /* write back MDREFR */
+ ldr r4, [r1, #MDREFR_OFFSET]
+
+ /* Step 4c: assert MDREFR:E1PIN and E0PIO as desired */
+
+ ldr r4, =CFG_MDREFR_VAL
+ str r4, [r1, #MDREFR_OFFSET] /* write back MDREFR */
+ ldr r4, [r1, #MDREFR_OFFSET]
+
+
+ /* Step 4d: write MDCNFG with MDCNFG:DEx deasserted (set to 0), to */
+ /* configure but not enable each SDRAM partition pair. */
+
+ ldr r4, =CFG_MDCNFG_VAL
+ bic r4, r4, #(MDCNFG_DE0|MDCNFG_DE1)
+
+ str r4, [r1, #MDCNFG_OFFSET] /* write back MDCNFG */
+ ldr r4, [r1, #MDCNFG_OFFSET]
+
+ /* Step 4e: Wait for the clock to the SDRAMs to stabilize, */
+ /* 100..200 µsec. */
+
+ 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
+
+ /* Step 4f: Trigger a number (usually 8) refresh cycles by */
+ /* attempting non-burst read or write accesses to disabled */
+ /* SDRAM, as commonly specified in the power up sequence */
+ /* documented in SDRAM data sheets. The address(es) used */
+ /* for this purpose must not be cacheable. */
+
+ ldr r3, =CFG_DRAM_BASE
+ str r2, [r3]
+ str r2, [r3]
+ str r2, [r3]
+ str r2, [r3]
+ str r2, [r3]
+ str r2, [r3]
+ str r2, [r3]
+ str r2, [r3]
+
+ /* Step 4g: Write MDCNFG with enable bits asserted */
+ /* (MDCNFG:DEx set to 1). */
+
+ ldr r3, [r1, #MDCNFG_OFFSET]
+ orr r3, r3, #(MDCNFG_DE0|MDCNFG_DE1)
+ str r3, [r1, #MDCNFG_OFFSET]
+
+ /* Step 4h: Write MDMRS. */
+
+ ldr r2, =CFG_MDMRS_VAL
+ str r2, [r1, #MDMRS_OFFSET]
+
+ /* We are finished with Intel's memory controller initialisation */
+#if 0
+ /* FIXME turn on serial ports */
+ /* look into moving this to board_init() */
+ ldr r2, =(PXA_CS5_PHYS + 0x03C0002c)
+ mov r3, #0x13
+ str r3, [r2]
+#endif
+
+#ifdef DEBUG_BLINK_ENABLE
+ /* 6th blink */
+ bl blink
+#endif
+
+ /* ---------------------------------------------------------------- */
+ /* Disable (mask) all interrupts at interrupt controller */
+ /* ---------------------------------------------------------------- */
+
+initirqs:
+
+ mov r1, #0 /* clear int. level register (IRQ, not FIQ) */
+ ldr r2, =ICLR
+ str r1, [r2]
+
+ ldr r2, =ICMR /* mask all interrupts at the controller */
+ str r1, [r2]
+
+ /* ---------------------------------------------------------------- */
+ /* Clock initialisation */
+ /* ---------------------------------------------------------------- */
+
+initclks:
+
+ /* Disable the peripheral clocks, and set the core clock frequency */
+ /* (hard-coding at 398.12MHz for now). */
+
+ /* Turn Off ALL on-chip peripheral clocks for re-configuration */
+ /* Note: See label 'ENABLECLKS' for the re-enabling */
+#if 0
+ ldr r1, =CKEN
+ mov r2, #0
+ str r2, [r1]
+
+ /* default value in case no valid rotary switch setting is found */
+ ldr r2, =(CCCR_L27|CCCR_M2|CCCR_N10) /* DEFAULT: {200/200/100} */
+
+ /* ... and write the core clock config register */
+ ldr r1, =CCCR
+ str r2, [r1]
+
+#endif
+
+#ifdef RTC
+ /* 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
+
+ /* ---------------------------------------------------------------- */
+ /* */
+ /* ---------------------------------------------------------------- */
+
+ /* Save SDRAM size */
+ ldr r1, =DRAM_SIZE
+ str r8, [r1]
+
+ /* Interrupt init: Mask all interrupts */
+ ldr r0, =ICMR /* enable no sources */
+ mov r1, #0
+ str r1, [r0]
+
+ /* FIXME */
+
+#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
+
+ /* ---------------------------------------------------------------- */
+ /* End memsetup */
+ /* ---------------------------------------------------------------- */
+
+#ifdef DEBUG_BLINK_ENABLE
+ /* 7th blink */
+ bl blink
+#endif
+
+endlowlevel_init:
+
+ mov pc, r10
+
+
+#ifdef DEBUG_BLINK_ENABLE
+
+/* debug LED code */
+
+/* delay about 200ms */
+delay:
+
+ /* reset OSCR to 0 */
+ ldr r8, =OSCR
+ mov r9, #0
+ str r9, [r8]
+
+ /* make sure new value has stuck */
+1:
+ ldr r8, =OSCR
+ ldr r9, [r8]
+ mov r8, #0x10000
+ cmp r9, r8
+ bgt 1b
+
+ /* now, wait for delay to expire */
+1:
+ ldr r8, =OSCR
+ ldr r9, [r8]
+ mov r8, #0xd4000
+ cmp r8, r9
+ bgt 1b
+
+ mov pc, lr
+
+/* blink code -- trashes r7, r8, r9 */
+
+.globl blink
+blink:
+
+ mov r7, lr
+
+ /* set GPIO10 as outout */
+ ldr r8, =GPDR0
+ ldr r9, [r8]
+ orr r9, r9, #(1<<10)
+ str r9, [r8]
+
+ /* turn LED off */
+ mov r9, #(1<<10)
+ ldr r8, =GPCR0
+ str r9, [r8]
+ bl delay
+
+ /* turn LED on */
+ mov r9, #(1<<10)
+ ldr r8, =GPSR0
+ str r9, [r8]
+ bl delay
+
+ /* turn LED off */
+ mov r9, #(1<<10)
+ ldr r8, =GPCR0
+ str r9, [r8]
+
+ mov pc, r7
+
+#endif
+++ /dev/null
-/*
- * Most of this taken from Redboot hal_platform_setup.h with cleanup
- *
- * NOTE: I haven't clean this up considerably, just enough to get it
- * running. See hal_platform_setup.h for the source. See
- * board/cradle/memsetup.S for another PXA250 setup that is
- * much cleaner.
- *
- * 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 CFG_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
-
-/*
- * Memory setup
- */
-.globl memsetup
-memsetup:
-
- mov r10, lr
-
-#ifdef DEBUG_BLINK_ENABLE
- /* 3rd blink */
- bl blink
-#endif
-
- /* Set up GPIO pins first ----------------------------------------- */
- ldr r0, =GPSR0
- ldr r1, =CFG_GPSR0_VAL
- str r1, [r0]
-
- ldr r0, =GPSR1
- ldr r1, =CFG_GPSR1_VAL
- str r1, [r0]
-
- ldr r0, =GPSR2
- ldr r1, =CFG_GPSR2_VAL
- str r1, [r0]
-
- ldr r0, =GPCR0
- ldr r1, =CFG_GPCR0_VAL
- str r1, [r0]
-
- ldr r0, =GPCR1
- ldr r1, =CFG_GPCR1_VAL
- str r1, [r0]
-
- ldr r0, =GPCR2
- ldr r1, =CFG_GPCR2_VAL
- str r1, [r0]
-
- ldr r0, =GPDR0
- ldr r1, =CFG_GPDR0_VAL
- str r1, [r0]
-
- ldr r0, =GPDR1
- ldr r1, =CFG_GPDR1_VAL
- str r1, [r0]
-
- ldr r0, =GPDR2
- ldr r1, =CFG_GPDR2_VAL
- str r1, [r0]
-
- ldr r0, =GAFR0_L
- ldr r1, =CFG_GAFR0_L_VAL
- str r1, [r0]
-
- ldr r0, =GAFR0_U
- ldr r1, =CFG_GAFR0_U_VAL
- str r1, [r0]
-
- ldr r0, =GAFR1_L
- ldr r1, =CFG_GAFR1_L_VAL
- str r1, [r0]
-
- ldr r0, =GAFR1_U
- ldr r1, =CFG_GAFR1_U_VAL
- str r1, [r0]
-
- ldr r0, =GAFR2_L
- ldr r1, =CFG_GAFR2_L_VAL
- str r1, [r0]
-
- ldr r0, =GAFR2_U
- ldr r1, =CFG_GAFR2_U_VAL
- str r1, [r0]
-
- ldr r0, =PSSR /* enable GPIO pins */
- ldr r1, =CFG_PSSR_VAL
- str r1, [r0]
-
-#ifdef DEBUG_BLINK_ENABLE
- /* 4th debug blink */
- bl blink
-#endif
-
- /* ---------------------------------------------------------------- */
- /* Enable memory interface */
- /* */
- /* The sequence below is based on the recommended init steps */
- /* detailed in the Intel PXA250 Operating Systems Developers Guide, */
- /* Chapter 10. */
- /* ---------------------------------------------------------------- */
-
- /* ---------------------------------------------------------------- */
- /* Step 1: Wait for at least 200 microsedonds to allow internal */
- /* clocks to settle. Only necessary after hard reset... */
- /* FIXME: can be optimized later */
- /* ---------------------------------------------------------------- */
-
- 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:
-
- ldr r1, =MEMC_BASE /* get memory controller base addr. */
-
- /* ---------------------------------------------------------------- */
- /* Step 2a: Initialize Asynchronous static memory controller */
- /* ---------------------------------------------------------------- */
-
- /* MSC registers: timing, bus width, mem type */
-
- /* MSC0: nCS(0,1) */
- ldr r2, =CFG_MSC0_VAL
- str r2, [r1, #MSC0_OFFSET]
- ldr r2, [r1, #MSC0_OFFSET] /* read back to ensure */
- /* that data latches */
- /* MSC1: nCS(2,3) */
- ldr r2, =CFG_MSC1_VAL
- str r2, [r1, #MSC1_OFFSET]
- ldr r2, [r1, #MSC1_OFFSET]
-
- /* MSC2: nCS(4,5) */
- ldr r2, =CFG_MSC2_VAL
- str r2, [r1, #MSC2_OFFSET]
- ldr r2, [r1, #MSC2_OFFSET]
-
- /* ---------------------------------------------------------------- */
- /* Step 2b: Initialize Card Interface */
- /* ---------------------------------------------------------------- */
-
- /* MECR: Memory Expansion Card Register */
- ldr r2, =CFG_MECR_VAL
- str r2, [r1, #MECR_OFFSET]
- ldr r2, [r1, #MECR_OFFSET]
-
- /* MCMEM0: Card Interface slot 0 timing */
- ldr r2, =CFG_MCMEM0_VAL
- str r2, [r1, #MCMEM0_OFFSET]
- ldr r2, [r1, #MCMEM0_OFFSET]
-
- /* MCMEM1: Card Interface slot 1 timing */
- ldr r2, =CFG_MCMEM1_VAL
- str r2, [r1, #MCMEM1_OFFSET]
- ldr r2, [r1, #MCMEM1_OFFSET]
-
- /* MCATT0: Card Interface Attribute Space Timing, slot 0 */
- ldr r2, =CFG_MCATT0_VAL
- str r2, [r1, #MCATT0_OFFSET]
- ldr r2, [r1, #MCATT0_OFFSET]
-
- /* MCATT1: Card Interface Attribute Space Timing, slot 1 */
- ldr r2, =CFG_MCATT1_VAL
- str r2, [r1, #MCATT1_OFFSET]
- ldr r2, [r1, #MCATT1_OFFSET]
-
- /* MCIO0: Card Interface I/O Space Timing, slot 0 */
- ldr r2, =CFG_MCIO0_VAL
- str r2, [r1, #MCIO0_OFFSET]
- ldr r2, [r1, #MCIO0_OFFSET]
-
- /* MCIO1: Card Interface I/O Space Timing, slot 1 */
- ldr r2, =CFG_MCIO1_VAL
- str r2, [r1, #MCIO1_OFFSET]
- ldr r2, [r1, #MCIO1_OFFSET]
-
-#ifdef DEBUG_BLINK_ENABLE
- /* 5th blink */
- bl blink
-#endif
-
- /* ---------------------------------------------------------------- */
- /* Step 2c: Write FLYCNFG FIXME: what's that??? */
- /* ---------------------------------------------------------------- */
-
- /* ---------------------------------------------------------------- */
- /* Step 2d: Initialize Timing for Sync Memory (SDCLK0) */
- /* ---------------------------------------------------------------- */
-
- /* Before accessing MDREFR we need a valid DRI field, so we set */
- /* this to power on defaults + DRI field. */
-
- ldr r3, =CFG_MDREFR_VAL
- ldr r2, =0xFFF
- and r3, r3, r2
- ldr r4, =0x03ca4000
- orr r4, r4, r3
- str r4, [r1, #MDREFR_OFFSET] /* write back MDREFR */
- ldr r4, [r1, #MDREFR_OFFSET]
-
- /* Note: preserve the mdrefr value in r4 */
-
- /* ---------------------------------------------------------------- */
- /* Step 3: Initialize Synchronous Static Memory (Flash/Peripherals) */
- /* ---------------------------------------------------------------- */
-
- /* Initialize SXCNFG register. Assert the enable bits */
-
- /* Write SXMRS to cause an MRS command to all enabled banks of */
- /* synchronous static memory. Note that SXLCR need not be written */
- /* at this time. */
-
- /* FIXME: we use async mode for now */
-
- /* ---------------------------------------------------------------- */
- /* Step 4: Initialize SDRAM */
- /* ---------------------------------------------------------------- */
-
- /* set MDREFR according to user define with exception of a few bits */
-
- ldr r4, =CFG_MDREFR_VAL
- orr r4, r4, #(MDREFR_SLFRSH)
- bic r4, r4, #(MDREFR_E1PIN|MDREFR_E0PIN)
- str r4, [r1, #MDREFR_OFFSET] /* write back MDREFR */
- ldr r4, [r1, #MDREFR_OFFSET]
-
- /* Step 4b: de-assert MDREFR:SLFRSH. */
-
- bic r4, r4, #(MDREFR_SLFRSH)
- str r4, [r1, #MDREFR_OFFSET] /* write back MDREFR */
- ldr r4, [r1, #MDREFR_OFFSET]
-
- /* Step 4c: assert MDREFR:E1PIN and E0PIO as desired */
-
- ldr r4, =CFG_MDREFR_VAL
- str r4, [r1, #MDREFR_OFFSET] /* write back MDREFR */
- ldr r4, [r1, #MDREFR_OFFSET]
-
-
- /* Step 4d: write MDCNFG with MDCNFG:DEx deasserted (set to 0), to */
- /* configure but not enable each SDRAM partition pair. */
-
- ldr r4, =CFG_MDCNFG_VAL
- bic r4, r4, #(MDCNFG_DE0|MDCNFG_DE1)
-
- str r4, [r1, #MDCNFG_OFFSET] /* write back MDCNFG */
- ldr r4, [r1, #MDCNFG_OFFSET]
-
- /* Step 4e: Wait for the clock to the SDRAMs to stabilize, */
- /* 100..200 µsec. */
-
- 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
-
- /* Step 4f: Trigger a number (usually 8) refresh cycles by */
- /* attempting non-burst read or write accesses to disabled */
- /* SDRAM, as commonly specified in the power up sequence */
- /* documented in SDRAM data sheets. The address(es) used */
- /* for this purpose must not be cacheable. */
-
- ldr r3, =CFG_DRAM_BASE
- str r2, [r3]
- str r2, [r3]
- str r2, [r3]
- str r2, [r3]
- str r2, [r3]
- str r2, [r3]
- str r2, [r3]
- str r2, [r3]
-
- /* Step 4g: Write MDCNFG with enable bits asserted */
- /* (MDCNFG:DEx set to 1). */
-
- ldr r3, [r1, #MDCNFG_OFFSET]
- orr r3, r3, #(MDCNFG_DE0|MDCNFG_DE1)
- str r3, [r1, #MDCNFG_OFFSET]
-
- /* Step 4h: Write MDMRS. */
-
- ldr r2, =CFG_MDMRS_VAL
- str r2, [r1, #MDMRS_OFFSET]
-
- /* We are finished with Intel's memory controller initialisation */
-#if 0
- /* FIXME turn on serial ports */
- /* look into moving this to board_init() */
- ldr r2, =(PXA_CS5_PHYS + 0x03C0002c)
- mov r3, #0x13
- str r3, [r2]
-#endif
-
-#ifdef DEBUG_BLINK_ENABLE
- /* 6th blink */
- bl blink
-#endif
-
- /* ---------------------------------------------------------------- */
- /* Disable (mask) all interrupts at interrupt controller */
- /* ---------------------------------------------------------------- */
-
-initirqs:
-
- mov r1, #0 /* clear int. level register (IRQ, not FIQ) */
- ldr r2, =ICLR
- str r1, [r2]
-
- ldr r2, =ICMR /* mask all interrupts at the controller */
- str r1, [r2]
-
- /* ---------------------------------------------------------------- */
- /* Clock initialisation */
- /* ---------------------------------------------------------------- */
-
-initclks:
-
- /* Disable the peripheral clocks, and set the core clock frequency */
- /* (hard-coding at 398.12MHz for now). */
-
- /* Turn Off ALL on-chip peripheral clocks for re-configuration */
- /* Note: See label 'ENABLECLKS' for the re-enabling */
-#if 0
- ldr r1, =CKEN
- mov r2, #0
- str r2, [r1]
-
- /* default value in case no valid rotary switch setting is found */
- ldr r2, =(CCCR_L27|CCCR_M2|CCCR_N10) /* DEFAULT: {200/200/100} */
-
- /* ... and write the core clock config register */
- ldr r1, =CCCR
- str r2, [r1]
-
-#endif
-
-#ifdef RTC
- /* 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
-
- /* ---------------------------------------------------------------- */
- /* */
- /* ---------------------------------------------------------------- */
-
- /* Save SDRAM size */
- ldr r1, =DRAM_SIZE
- str r8, [r1]
-
- /* Interrupt init: Mask all interrupts */
- ldr r0, =ICMR /* enable no sources */
- mov r1, #0
- str r1, [r0]
-
- /* FIXME */
-
-#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
-
- /* ---------------------------------------------------------------- */
- /* End memsetup */
- /* ---------------------------------------------------------------- */
-
-#ifdef DEBUG_BLINK_ENABLE
- /* 7th blink */
- bl blink
-#endif
-
-endmemsetup:
-
- mov pc, r10
-
-
-#ifdef DEBUG_BLINK_ENABLE
-
-/* debug LED code */
-
-/* delay about 200ms */
-delay:
-
- /* reset OSCR to 0 */
- ldr r8, =OSCR
- mov r9, #0
- str r9, [r8]
-
- /* make sure new value has stuck */
-1:
- ldr r8, =OSCR
- ldr r9, [r8]
- mov r8, #0x10000
- cmp r9, r8
- bgt 1b
-
- /* now, wait for delay to expire */
-1:
- ldr r8, =OSCR
- ldr r9, [r8]
- mov r8, #0xd4000
- cmp r8, r9
- bgt 1b
-
- mov pc, lr
-
-/* blink code -- trashes r7, r8, r9 */
-
-.globl blink
-blink:
-
- mov r7, lr
-
- /* set GPIO10 as outout */
- ldr r8, =GPDR0
- ldr r9, [r8]
- orr r9, r9, #(1<<10)
- str r9, [r8]
-
- /* turn LED off */
- mov r9, #(1<<10)
- ldr r8, =GPCR0
- str r9, [r8]
- bl delay
-
- /* turn LED on */
- mov r9, #(1<<10)
- ldr r8, =GPSR0
- str r9, [r8]
- bl delay
-
- /* turn LED off */
- mov r9, #(1<<10)
- ldr r8, =GPCR0
- str r9, [r8]
-
- mov pc, r7
-
-#endif
. = ALIGN(4);
.got : { *(.got) }
+ . = .;
__u_boot_cmd_start = .;
.u_boot_cmd : { *(.u_boot_cmd) }
__u_boot_cmd_end = .;
PLATFORM_RELFLAGS += -fno-strict-aliasing -fno-common -ffixed-r8 \
-msoft-float
-#PLATFORM_CPPFLAGS += -mapcs-32 -march=armv4 -mtune=strongarm1100
-PLATFORM_CPPFLAGS += -march=armv5 -mtune=xscale
+PLATFORM_CPPFLAGS += -march=armv5te -mtune=xscale
# =========================================================================
#
# Supply options according to compiler version
DECLARE_GLOBAL_DATA_PTR;
-#define FFUART 0
-#define BTUART 1
-#define STUART 2
+#define FFUART_INDEX 0
+#define BTUART_INDEX 1
+#define STUART_INDEX 2
#ifndef CONFIG_SERIAL_MULTI
#if defined (CONFIG_FFUART)
-#define UART_INDEX FFUART
+#define UART_INDEX FFUART_INDEX
#elif defined (CONFIG_BTUART)
-#define UART_INDEX BTUART
+#define UART_INDEX BTUART_INDEX
#elif defined (CONFIG_STUART)
-#define UART_INDEX STUART
+#define UART_INDEX STUART_INDEX
#else
#error "Bad: you didn't configure serial ..."
#endif
hang ();
switch (uart_index) {
- case FFUART:
+ case FFUART_INDEX:
#ifdef CONFIG_CPU_MONAHANS
CKENA |= CKENA_22_FFUART;
#else
FFIER = IER_UUE; /* Enable FFUART */
break;
- case BTUART:
+ case BTUART_INDEX:
#ifdef CONFIG_CPU_MONAHANS
CKENA |= CKENA_21_BTUART;
#else
break;
- case STUART:
+ case STUART_INDEX:
#ifdef CONFIG_CPU_MONAHANS
CKENA |= CKENA_23_STUART;
#else
void pxa_putc_dev (unsigned int uart_index,const char c)
{
switch (uart_index) {
- case FFUART:
+ case FFUART_INDEX:
/* wait for room in the tx FIFO on FFUART */
while ((FFLSR & LSR_TEMT) == 0)
WATCHDOG_RESET (); /* Reset HW Watchdog, if needed */
FFTHR = c;
break;
- case BTUART:
+ case BTUART_INDEX:
while ((BTLSR & LSR_TEMT ) == 0 )
WATCHDOG_RESET (); /* Reset HW Watchdog, if needed */
BTTHR = c;
break;
- case STUART:
+ case STUART_INDEX:
while ((STLSR & LSR_TEMT ) == 0 )
WATCHDOG_RESET (); /* Reset HW Watchdog, if needed */
STTHR = c;
int pxa_tstc_dev (unsigned int uart_index)
{
switch (uart_index) {
- case FFUART:
+ case FFUART_INDEX:
return FFLSR & LSR_DR;
- case BTUART:
+ case BTUART_INDEX:
return BTLSR & LSR_DR;
- case STUART:
+ case STUART_INDEX:
return STLSR & LSR_DR;
}
return -1;
int pxa_getc_dev (unsigned int uart_index)
{
switch (uart_index) {
- case FFUART:
+ case FFUART_INDEX:
while (!(FFLSR & LSR_DR))
WATCHDOG_RESET (); /* Reset HW Watchdog, if needed */
return (char) FFRBR & 0xff;
- case BTUART:
+ case BTUART_INDEX:
while (!(BTLSR & LSR_DR))
WATCHDOG_RESET (); /* Reset HW Watchdog, if needed */
return (char) BTRBR & 0xff;
- case STUART:
+ case STUART_INDEX:
while (!(STLSR & LSR_DR))
WATCHDOG_RESET (); /* Reset HW Watchdog, if needed */
return (char) STRBR & 0xff;
#if defined (CONFIG_FFUART)
static int ffuart_init(void)
{
- return pxa_init_dev(FFUART);
+ return pxa_init_dev(FFUART_INDEX);
}
static void ffuart_setbrg(void)
{
- return pxa_setbrg_dev(FFUART);
+ return pxa_setbrg_dev(FFUART_INDEX);
}
static void ffuart_putc(const char c)
{
- return pxa_putc_dev(FFUART,c);
+ return pxa_putc_dev(FFUART_INDEX,c);
}
static void ffuart_puts(const char *s)
{
- return pxa_puts_dev(FFUART,s);
+ return pxa_puts_dev(FFUART_INDEX,s);
}
static int ffuart_getc(void)
{
- return pxa_getc_dev(FFUART);
+ return pxa_getc_dev(FFUART_INDEX);
}
static int ffuart_tstc(void)
{
- return pxa_tstc_dev(FFUART);
+ return pxa_tstc_dev(FFUART_INDEX);
}
struct serial_device serial_ffuart_device =
#if defined (CONFIG_BTUART)
static int btuart_init(void)
{
- return pxa_init_dev(BTUART);
+ return pxa_init_dev(BTUART_INDEX);
}
static void btuart_setbrg(void)
{
- return pxa_setbrg_dev(BTUART);
+ return pxa_setbrg_dev(BTUART_INDEX);
}
static void btuart_putc(const char c)
{
- return pxa_putc_dev(BTUART,c);
+ return pxa_putc_dev(BTUART_INDEX,c);
}
static void btuart_puts(const char *s)
{
- return pxa_puts_dev(BTUART,s);
+ return pxa_puts_dev(BTUART_INDEX,s);
}
static int btuart_getc(void)
{
- return pxa_getc_dev(BTUART);
+ return pxa_getc_dev(BTUART_INDEX);
}
static int btuart_tstc(void)
{
- return pxa_tstc_dev(BTUART);
+ return pxa_tstc_dev(BTUART_INDEX);
}
struct serial_device serial_btuart_device =
#if defined (CONFIG_STUART)
static int stuart_init(void)
{
- return pxa_init_dev(STUART);
+ return pxa_init_dev(STUART_INDEX);
}
static void stuart_setbrg(void)
{
- return pxa_setbrg_dev(STUART);
+ return pxa_setbrg_dev(STUART_INDEX);
}
static void stuart_putc(const char c)
{
- return pxa_putc_dev(STUART,c);
+ return pxa_putc_dev(STUART_INDEX,c);
}
static void stuart_puts(const char *s)
{
- return pxa_puts_dev(STUART,s);
+ return pxa_puts_dev(STUART_INDEX,s);
}
static int stuart_getc(void)
{
- return pxa_getc_dev(STUART);
+ return pxa_getc_dev(STUART_INDEX);
}
static int stuart_tstc(void)
{
- return pxa_tstc_dev(STUART);
+ return pxa_tstc_dev(STUART_INDEX);
}
struct serial_device serial_stuart_device =
/* */
/****************************************************************************/
/* mk@tbd: Fix this! */
-#ifdef CONFIG_CPU_MONAHANS
+#if defined(CONFIG_PXA250) || defined(CONFIG_CPU_MONAHANS)
#undef ICMR
#undef OSMR3
#undef OSCR
#undef OWER
#undef OIER
#endif
+#ifdef CONFIG_PXA250
+#undef RCSR
+#undef CCCR
+#endif
/* Interrupt-Controller base address */
IC_BASE: .word 0x40d00000
#include <asm/arch/pxa-regs.h>
/*
- * If we are developing, we might want to start armboot from ram
+ * If we are developing, we might want to start U-Boot from RAM
* so we MUST NOT initialize critical regs like mem-timing ...
*/
-#define CONFIG_INIT_CRITICAL /* undef for developing */
+#undef CONFIG_SKIP_LOWLEVEL_INIT /* define for developing */
+#undef CONFIG_SKIP_RELOCATE_UBOOT /* define for developing */
/*
* define the following to enable debug blinks. A debug blink function
#endif
#define CONFIG_MMC 1
+#define CONFIG_DOS_PARTITION 1
#define BOARD_LATE_INIT 1
#undef CONFIG_USE_IRQ /* we don't need IRQ/FIQ stuff */
#define CONFIG_CMD_FAT
#define CONFIG_CMD_DHCP
-
#define CONFIG_BOOTDELAY 3
#define CONFIG_BOOTCOMMAND "bootm 40000"
#define CONFIG_BOOTARGS "root=/dev/mtdblock2 rootfstype=cramfs console=ttyS0,115200"
#define CFG_FLASH_CFI_DRIVER 1
#define CFG_MONITOR_BASE 0
-#define CFG_MONITOR_LEN 0x40000
+#define CFG_MONITOR_LEN PHYS_FLASH_SECT_SIZE
#define CFG_MAX_FLASH_BANKS 1 /* max number of memory banks */
#define CFG_MAX_FLASH_SECT 128 /* max number of sectors on one chip */
#define CFG_ENV_IS_IN_FLASH 1
/* Addr of Environment Sector */
#define CFG_ENV_ADDR (PHYS_FLASH_1 + PHYS_FLASH_SIZE - 0x40000)
-#define CFG_ENV_SIZE 0x40000 /* Total Size of Environment Sector */
-#define CFG_ENV_SECT_SIZE 0x40000
+#define CFG_ENV_SIZE PHYS_FLASH_SECT_SIZE /* Total Size of Environment Sector */
+#define CFG_ENV_SECT_SIZE (PHYS_FLASH_SECT_SIZE / 16)
#endif /* __CONFIG_H */
#endif
lbaint_t lba; /* number of blocks */
unsigned long blksz; /* block size */
- unsigned char vendor [40+1]; /* IDE model, SCSI Vendor */
- unsigned char product[20+1]; /* IDE Serial no, SCSI product */
- unsigned char revision[8+1]; /* firmware revision */
+ char vendor [40+1]; /* IDE model, SCSI Vendor */
+ char product[20+1]; /* IDE Serial no, SCSI product */
+ char revision[8+1]; /* firmware revision */
unsigned long (*block_read)(int dev,
unsigned long start,
lbaint_t blkcnt,
projects / u-boot / commitdiff