[U-Boot] [PATCH] ColdFire: Implement SBF feature for M5445EVB
Tsi-Chung Liew
Tsi-Chung.Liew at freescale.com
Tue Aug 12 15:15:58 CEST 2008
From: TsiChung Liew <Tsi-Chung.Liew at freescale.com>
Signed-off-by: TsiChung Liew <Tsi-Chung.Liew at freescale.com>
---
Makefile | 16 ++-
board/freescale/m54455evb/m54455evb.c | 14 ++-
board/freescale/m54455evb/u-boot.stm | 136 +++++++++++++++++
cpu/mcf5445x/cpu_init.c | 2 +
cpu/mcf5445x/speed.c | 67 ++++++---
cpu/mcf5445x/start.S | 258 ++++++++++++++++++++++++++++++++-
include/configs/M54455EVB.h | 92 ++++++++++--
7 files changed, 539 insertions(+), 46 deletions(-)
create mode 100644 board/freescale/m54455evb/u-boot.stm
diff --git a/Makefile b/Makefile
index 89746a2..4fa235e 100644
--- a/Makefile
+++ b/Makefile
@@ -1898,7 +1898,8 @@ M54455EVB_intel_config \
M54455EVB_a33_config \
M54455EVB_a66_config \
M54455EVB_i33_config \
-M54455EVB_i66_config : unconfig
+M54455EVB_i66_config \
+M54455EVB_stm33_config : unconfig
@case "$@" in \
M54455EVB_config) FLASH=ATMEL; FREQ=33333333;; \
M54455EVB_atmel_config) FLASH=ATMEL; FREQ=33333333;; \
@@ -1907,18 +1908,27 @@ M54455EVB_i66_config : unconfig
M54455EVB_a66_config) FLASH=ATMEL; FREQ=66666666;; \
M54455EVB_i33_config) FLASH=INTEL; FREQ=33333333;; \
M54455EVB_i66_config) FLASH=INTEL; FREQ=66666666;; \
+ M54455EVB_stm33_config) FLASH=STMICRO; FREQ=33333333;; \
esac; \
if [ "$${FLASH}" = "INTEL" ] ; then \
- echo "#undef CFG_ATMEL_BOOT" >> $(obj)include/config.h ; \
+ echo "#define CFG_INTEL_BOOT" >> $(obj)include/config.h ; \
echo "TEXT_BASE = 0x00000000" > $(obj)board/freescale/m54455evb/config.tmp ; \
cp $(obj)board/freescale/m54455evb/u-boot.int $(obj)board/freescale/m54455evb/u-boot.lds ; \
$(XECHO) "... with INTEL boot..." ; \
- else \
+ fi; \
+ if [ "$${FLASH}" = "ATMEL" ] ; then \
echo "#define CFG_ATMEL_BOOT" >> $(obj)include/config.h ; \
echo "TEXT_BASE = 0x04000000" > $(obj)board/freescale/m54455evb/config.tmp ; \
cp $(obj)board/freescale/m54455evb/u-boot.atm $(obj)board/freescale/m54455evb/u-boot.lds ; \
$(XECHO) "... with ATMEL boot..." ; \
fi; \
+ if [ "$${FLASH}" = "STMICRO" ] ; then \
+ echo "#define CONFIG_CF_SBF" >> $(obj)include/config.h ; \
+ echo "#define CFG_STMICRO_BOOT" >> $(obj)include/config.h ; \
+ echo "TEXT_BASE = 0x4FE00000" > $(obj)board/freescale/m54455evb/config.tmp ; \
+ cp $(obj)board/freescale/m54455evb/u-boot.stm $(obj)board/freescale/m54455evb/u-boot.lds ; \
+ $(XECHO) "... with ST Micro boot..." ; \
+ fi; \
echo "#define CFG_INPUT_CLKSRC $${FREQ}" >> $(obj)include/config.h ; \
$(XECHO) "... with $${FREQ}Hz input clock"
@$(MKCONFIG) -a M54455EVB m68k mcf5445x m54455evb freescale
diff --git a/board/freescale/m54455evb/m54455evb.c b/board/freescale/m54455evb/m54455evb.c
index 3c7b350..4f02121 100644
--- a/board/freescale/m54455evb/m54455evb.c
+++ b/board/freescale/m54455evb/m54455evb.c
@@ -39,9 +39,17 @@ int checkboard(void)
phys_size_t initdram(int board_type)
{
+ u32 dramsize;
+#ifdef CONFIG_CF_SBF
+ /*
+ * Serial Boot: The dram is already initialized in start.S
+ * only require to return DRAM size
+ */
+ dramsize = CFG_SDRAM_SIZE * 0x100000 >> 1;
+#else
volatile sdramc_t *sdram = (volatile sdramc_t *)(MMAP_SDRAM);
volatile gpio_t *gpio = (volatile gpio_t *)(MMAP_GPIO);
- u32 dramsize, i;
+ u32 i;
dramsize = CFG_SDRAM_SIZE * 0x100000 >> 1;
@@ -51,7 +59,7 @@ phys_size_t initdram(int board_type)
}
i--;
- gpio->mscr_sdram = 0xAA;
+ gpio->mscr_sdram = CFG_SDRAM_DRV_STRENGTH;
sdram->sdcs0 = (CFG_SDRAM_BASE | i);
sdram->sdcs1 = (CFG_SDRAM_BASE1 | i);
@@ -80,7 +88,7 @@ phys_size_t initdram(int board_type)
sdram->sdcr = (CFG_SDRAM_CTRL & ~0x80000000) | 0x10000c00;
udelay(100);
-
+#endif
return (dramsize << 1);
};
diff --git a/board/freescale/m54455evb/u-boot.stm b/board/freescale/m54455evb/u-boot.stm
new file mode 100644
index 0000000..3dd9a6b
--- /dev/null
+++ b/board/freescale/m54455evb/u-boot.stm
@@ -0,0 +1,136 @@
+/*
+ * (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
+ */
+
+OUTPUT_ARCH(m68k)
+/* Do we need any of these for elf?
+ __DYNAMIC = 0; */
+SECTIONS
+{
+ /* Read-only sections, merged into text segment: */
+ . = + SIZEOF_HEADERS;
+ .interp : { *(.interp) }
+ .hash : { *(.hash) }
+ .dynsym : { *(.dynsym) }
+ .dynstr : { *(.dynstr) }
+ .rel.text : { *(.rel.text) }
+ .rela.text : { *(.rela.text) }
+ .rel.data : { *(.rel.data) }
+ .rela.data : { *(.rela.data) }
+ .rel.rodata : { *(.rel.rodata) }
+ .rela.rodata : { *(.rela.rodata) }
+ .rel.got : { *(.rel.got) }
+ .rela.got : { *(.rela.got) }
+ .rel.ctors : { *(.rel.ctors) }
+ .rela.ctors : { *(.rela.ctors) }
+ .rel.dtors : { *(.rel.dtors) }
+ .rela.dtors : { *(.rela.dtors) }
+ .rel.bss : { *(.rel.bss) }
+ .rela.bss : { *(.rela.bss) }
+ .rel.plt : { *(.rel.plt) }
+ .rela.plt : { *(.rela.plt) }
+ .init : { *(.init) }
+ .plt : { *(.plt) }
+ .text :
+ {
+ /* WARNING - the following is hand-optimized to fit within */
+ /* the sector layout of our flash chips! XXX FIXME XXX */
+
+ cpu/mcf5445x/start.o (.text)
+
+ *(.text)
+ *(.fixup)
+ *(.got1)
+ }
+ _etext = .;
+ PROVIDE (etext = .);
+ .rodata :
+ {
+ *(.rodata)
+ *(.rodata1)
+ }
+ .fini : { *(.fini) } =0
+ .ctors : { *(.ctors) }
+ .dtors : { *(.dtors) }
+
+ /* Read-write section, merged into data segment: */
+ . = (. + 0x00FF) & 0xFFFFFF00;
+ _erotext = .;
+ PROVIDE (erotext = .);
+
+ .reloc :
+ {
+ __got_start = .;
+ *(.got)
+ __got_end = .;
+ _GOT2_TABLE_ = .;
+ *(.got2)
+ _FIXUP_TABLE_ = .;
+ *(.fixup)
+ }
+ __got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >>2;
+ __fixup_entries = (. - _FIXUP_TABLE_)>>2;
+
+ .data :
+ {
+ *(.data)
+ *(.data1)
+ *(.sdata)
+ *(.sdata2)
+ *(.dynamic)
+ CONSTRUCTORS
+ }
+ _edata = .;
+ PROVIDE (edata = .);
+
+ . = .;
+ __u_boot_cmd_start = .;
+ .u_boot_cmd : { *(.u_boot_cmd) }
+ __u_boot_cmd_end = .;
+
+
+ . = .;
+ __start___ex_table = .;
+ __ex_table : { *(__ex_table) }
+ __stop___ex_table = .;
+
+ . = ALIGN(256);
+ __init_begin = .;
+ .text.init : { *(.text.init) }
+ .data.init : { *(.data.init) }
+ . = ALIGN(256);
+ __init_end = .;
+
+ __bss_start = .;
+ .bss :
+ {
+ _sbss = .;
+ *(.sbss) *(.scommon)
+ *(.dynbss)
+ *(.bss)
+ *(COMMON)
+ . = ALIGN(4);
+ _ebss = .;
+ }
+ _end = . ;
+ PROVIDE (end = .);
+}
diff --git a/cpu/mcf5445x/cpu_init.c b/cpu/mcf5445x/cpu_init.c
index e07748b..51a9e90 100644
--- a/cpu/mcf5445x/cpu_init.c
+++ b/cpu/mcf5445x/cpu_init.c
@@ -61,11 +61,13 @@ void cpu_init_f(void)
GPIO_PAR_FBCTL_OE | GPIO_PAR_FBCTL_TA_TA | GPIO_PAR_FBCTL_RW_RW |
GPIO_PAR_FBCTL_TS_TS;
+#if !defined(CONFIG_CF_SBF)
#if (defined(CFG_CS0_BASE) && defined(CFG_CS0_MASK) && defined(CFG_CS0_CTRL))
fbcs->csar0 = CFG_CS0_BASE;
fbcs->cscr0 = CFG_CS0_CTRL;
fbcs->csmr0 = CFG_CS0_MASK;
#endif
+#endif
#if (defined(CFG_CS1_BASE) && defined(CFG_CS1_MASK) && defined(CFG_CS1_CTRL))
/* Latch chipselect */
diff --git a/cpu/mcf5445x/speed.c b/cpu/mcf5445x/speed.c
index 967becf..f677f3c 100644
--- a/cpu/mcf5445x/speed.c
+++ b/cpu/mcf5445x/speed.c
@@ -84,26 +84,29 @@ void clock_exit_limp(void)
*/
int get_clocks(void)
{
+
volatile ccm_t *ccm = (volatile ccm_t *)MMAP_CCM;
volatile pll_t *pll = (volatile pll_t *)MMAP_PLL;
- volatile u8 *cpld = (volatile u8 *)(CFG_CS2_BASE + 3);
- volatile u8 *fpga = (volatile u8 *)(CFG_CS3_BASE + 14);
int pllmult_nopci[] = { 20, 10, 24, 18, 12, 6, 16, 8 };
int pllmult_pci[] = { 12, 6, 16, 8 };
- int vco, bPci, temp, fbtemp, pcrvalue;
+ int vco = 0, bPci, temp, fbtemp, pcrvalue;
int *pPllmult = NULL;
u16 fbpll_mask;
- u8 cpldmode;
+
+#ifdef CONFIG_M54455EVB
+ volatile u8 *cpld = (volatile u8 *)(CFG_CS2_BASE + 3);
+#endif
+ u8 bootmode;
/* To determine PCI is present or not */
if (((ccm->ccr & CCM_CCR_360_FBCONFIG_MASK) == 0x00e0) ||
((ccm->ccr & CCM_CCR_360_FBCONFIG_MASK) == 0x0060)) {
pPllmult = &pllmult_pci[0];
- fbpll_mask = 3;
+ fbpll_mask = 3; /* 11b */
bPci = 1;
} else {
pPllmult = &pllmult_nopci[0];
- fbpll_mask = 7;
+ fbpll_mask = 7; /* 111b */
#ifdef CONFIG_PCI
gd->pci_clk = 0;
#endif
@@ -111,20 +114,36 @@ int get_clocks(void)
}
#ifdef CONFIG_M54455EVB
- /* Temporary place here, belongs in board/freescale/... */
- /* Temporary read from CCR- fixed fb issue, must be the same clock
- as pci or input clock, causing cpld/fpga read inconsistancy */
- fbtemp = pPllmult[ccm->ccr & fbpll_mask];
+ bootmode = (*cpld & 0x03);
- /* Break down into small pieces, code still in flex bus */
- pcrvalue = pll->pcr & 0xFFFFF0FF;
- temp = fbtemp - 1;
- pcrvalue |= PLL_PCR_OUTDIV3(temp);
+ if (bootmode != 3) {
+ /* Temporary read from CCR- fixed fb issue, must be the same clock
+ as pci or input clock, causing cpld/fpga read inconsistancy */
+ fbtemp = pPllmult[ccm->ccr & fbpll_mask];
+ /* Break down into small pieces, code still in flex bus */
+ pcrvalue = pll->pcr & 0xFFFFF0FF;
+ temp = fbtemp - 1;
+ pcrvalue |= PLL_PCR_OUTDIV3(temp);
+
+ pll->pcr = pcrvalue;
+ }
+#endif
+#ifdef CONFIG_M54451EVB
+ /* No external logic to read the bootmode, hard coded from built */
+#ifdef CONFIG_CF_SBF
+ bootmode = 3;
+#else
+ bootmode = 2;
+
+ /* default value is 16 mul, set to 20 mul */
+ pcrvalue = (pll->pcr & 0x00FFFFFF) | 0x14000000;
pll->pcr = pcrvalue;
+ while ((pll->psr & PLL_PSR_LOCK) != PLL_PSR_LOCK);
+#endif
+#endif
- cpldmode = *cpld & 0x03;
- if (cpldmode == 0) {
+ if (bootmode == 0) {
/* RCON mode */
vco = pPllmult[ccm->rcon & fbpll_mask] * CFG_INPUT_CLKSRC;
@@ -151,14 +170,22 @@ int get_clocks(void)
pll->pcr = pcrvalue;
}
gd->vco_clk = vco; /* Vco clock */
- } else if (cpldmode == 2) {
+ } else if (bootmode == 2) {
/* Normal mode */
- vco = pPllmult[ccm->ccr & fbpll_mask] * CFG_INPUT_CLKSRC;
+ vco = ((pll->pcr & 0xFF000000) >> 24) * CFG_INPUT_CLKSRC;
+ if ((vco < CLOCK_PLL_FVCO_MIN) || (vco > CLOCK_PLL_FVCO_MAX)) {
+ /* Default value */
+ pcrvalue = (pll->pcr & 0x00FFFFFF);
+ pcrvalue |= pPllmult[ccm->ccr & fbpll_mask] << 24;
+ pll->pcr = pcrvalue;
+ vco = ((pll->pcr & 0xFF000000) >> 24) * CFG_INPUT_CLKSRC;
+ }
gd->vco_clk = vco; /* Vco clock */
- } else if (cpldmode == 3) {
+ } else if (bootmode == 3) {
/* serial mode */
+ vco = ((pll->pcr & 0xFF000000) >> 24) * CFG_INPUT_CLKSRC;
+ gd->vco_clk = vco; /* Vco clock */
}
-#endif /* CONFIG_M54455EVB */
if ((ccm->ccr & CCM_MISCCR_LIMP) == CCM_MISCCR_LIMP) {
/* Limp mode */
diff --git a/cpu/mcf5445x/start.S b/cpu/mcf5445x/start.S
index 89ec7bc..4bfc625 100644
--- a/cpu/mcf5445x/start.S
+++ b/cpu/mcf5445x/start.S
@@ -46,15 +46,30 @@
addl #60,%sp; /* space for 15 regs */ \
rte;
+#if defined(CONFIG_CF_SBF)
+#define ASM_DRAMINIT (asm_dram_init - TEXT_BASE + CFG_INIT_RAM_ADDR)
+#define ASM_SBF_IMG_HDR (asm_sbf_img_hdr - TEXT_BASE + CFG_INIT_RAM_ADDR)
+#endif
+
.text
+
/*
* Vector table. This is used for initial platform startup.
* These vectors are to catch any un-intended traps.
*/
_vectors:
+#if defined(CONFIG_CF_SBF)
+
+INITSP: .long 0 /* Initial SP */
+INITPC: .long ASM_DRAMINIT /* Initial PC */
+
+#else
+
+INITSP: .long 0 /* Initial SP */
+INITPC: .long _START /* Initial PC */
+
+#endif
-INITSP: .long 0x00000000 /* Initial SP */
-INITPC: .long _START /* Initial PC */
vector02: .long _FAULT /* Access Error */
vector03: .long _FAULT /* Address Error */
vector04: .long _FAULT /* Illegal Instruction */
@@ -83,6 +98,8 @@ vector1D: .long _FAULT /* Autovector Level 5 */
vector1E: .long _FAULT /* Autovector Level 6 */
vector1F: .long _FAULT /* Autovector Level 7 */
+#if !defined(CONFIG_CF_SBF)
+
/* TRAP #0 - #15 */
vector20_2F:
.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
@@ -122,9 +139,237 @@ vector192_255:
.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+#endif
- .text
+#if defined(CONFIG_CF_SBF)
+ /* Image header: chksum 4 bytes, len 4 bytes, img dest 4 bytes */
+asm_sbf_img_hdr:
+ .long 0x00000000 /* checksum, not yet implemented */
+ .long 0x00030000 /* image length */
+ .long TEXT_BASE /* image to be relocated at */
+
+asm_dram_init:
+ move.l #(CFG_INIT_RAM_ADDR + CFG_INIT_RAM_CTRL), %d0
+ movec %d0, %RAMBAR1 /* init Rambar */
+ move.l #(CFG_INIT_RAM_ADDR + CFG_INIT_SP_OFFSET), %sp
+ clr.l %sp at -
+
+ /* Must disable global address */
+ move.l #0xFC008000, %a1
+ move.l #(CFG_CS0_BASE), (%a1)
+ move.l #0xFC008008, %a1
+ move.l #(CFG_CS0_CTRL), (%a1)
+ move.l #0xFC008004, %a1
+ move.l #(CFG_CS0_MASK), (%a1)
+
+ /*
+ * Dram Initialization
+ * a1, a2, and d0
+ */
+ /* mscr sdram */
+ move.l #0xFC0A4074, %a1
+ move.b #(CFG_SDRAM_DRV_STRENGTH), (%a1)
+ nop
+
+ /* SDRAM Chip 0 and 1 */
+ move.l #0xFC0B8110, %a1
+ move.l #0xFC0B8114, %a2
+
+ /* calculate the size */
+ move.l #0x13, %d1
+ move.l #(CFG_SDRAM_SIZE), %d2
+#ifdef CFG_SDRAM_BASE1
+ lsr.l #1, %d2
+#endif
+
+dramsz_loop:
+ lsr.l #1, %d2
+ add.l #1, %d1
+ cmp.l #1, %d2
+ bne dramsz_loop
+
+ /* SDRAM Chip 0 and 1 */
+ move.l #(CFG_SDRAM_BASE), (%a1)
+ or.l %d1, (%a1)
+#ifdef CFG_SDRAM_BASE1
+ move.l #(CFG_SDRAM_BASE1), (%a2)
+ or.l %d1, (%a2)
+#endif
+ nop
+
+ /* dram cfg1 and cfg2 */
+ move.l #0xFC0B8008, %a1
+ move.l #(CFG_SDRAM_CFG1), (%a1)
+ nop
+ move.l #0xFC0B800C, %a2
+ move.l #(CFG_SDRAM_CFG2), (%a2)
+ nop
+
+ move.l #0xFC0B8000, %a1 /* Mode */
+ move.l #0xFC0B8004, %a2 /* Ctrl */
+
+#ifdef CONFIG_M54455EVB
+ /* Issue PALL */
+ move.l #(CFG_SDRAM_CTRL + 2), (%a2)
+ nop
+
+ /* Issue LEMR */
+ move.l #(CFG_SDRAM_EMOD + 0x408), (%a1)
+ nop
+ move.l #(CFG_SDRAM_MODE + 0x300), (%a1)
+ nop
+
+ move.l #1000, %d0
+wait1000:
+ nop
+ subq.l #1, %d0
+ bne wait1000
+#endif
+
+ /* Issue PALL */
+ move.l #(CFG_SDRAM_CTRL + 2), (%a2)
+ nop
+
+ /* Perform two refresh cycles */
+ move.l #(CFG_SDRAM_CTRL + 4), %d0
+ nop
+ move.l %d0, (%a2)
+ move.l %d0, (%a2)
+ nop
+#ifdef CONFIG_M54455EVB
+ move.l #(CFG_SDRAM_MODE + 0x200), (%a1)
+ nop
+#elif defined(CONFIG_M54451EVB)
+ /* Issue LEMR */
+ move.l #(CFG_SDRAM_MODE), (%a2)
+ nop
+ move.l #(CFG_SDRAM_EMOD), (%a2)
+ nop
+#endif
+
+ move.l #500, %d0
+wait500:
+ nop
+ subq.l #1, %d0
+ bne wait500
+
+ move.l #(CFG_SDRAM_CTRL), %d0
+ and.l #0x7FFFFFFF, %d0
+#ifdef CONFIG_M54455EVB
+ or.l #0x10000c00, %d0
+#elif defined(CONFIG_M54451EVB)
+ or.l #0x10000000, %d0
+#endif
+ move.l %d0, (%a2)
+ nop
+
+ /*
+ * DSPI Initialization
+ * a0 - general, sram - 0x80008000 - 32, see M54455EVB.h
+ * a1 - dspi status
+ * a2 - dtfr
+ * a3 - drfr
+ * a4 - Dst addr
+ */
+ /* Enable pins for DSPI mode - chip-selects are enabled later */
+ move.l #0xFC0A4063, %a0
+ move.b #0x7F, (%a0)
+
+ /* Configure DSPI module */
+ move.l #0xFC05C000, %a0
+ move.l #0x80FF0C00, (%a0) /* Master, clear TX/RX FIFO */
+
+ move.l #0xFC05C00C, %a0
+ move.l #0x3E000011, (%a0)
+
+ move.l #0xFC05C034, %a2 /* dtfr */
+ move.l #0xFC05C03B, %a3 /* drfr */
+
+ move.l #(ASM_SBF_IMG_HDR + 4), %a1
+ move.l (%a1)+, %d5
+ move.l (%a1), %a4
+
+ move.l #(CFG_INIT_RAM_ADDR + CFG_SBFHDR_DATA_OFFSET), %a0
+ move.l #(CFG_SBFHDR_SIZE), %d4
+
+ move.l #0xFC05C02C, %a1 /* dspi status */
+
+ /* Issue commands and address */
+ move.l #0x8002000B, %d2 /* Fast Read Cmd */
+ jsr asm_dspi_wr_status
+ jsr asm_dspi_rd_status
+
+ move.l #0x80020000, %d2 /* Address byte 2 */
+ jsr asm_dspi_wr_status
+ jsr asm_dspi_rd_status
+
+ move.l #0x80020000, %d2 /* Address byte 1 */
+ jsr asm_dspi_wr_status
+ jsr asm_dspi_rd_status
+
+ move.l #0x80020000, %d2 /* Address byte 0 */
+ jsr asm_dspi_wr_status
+ jsr asm_dspi_rd_status
+
+ move.l #0x80020000, %d2 /* Dummy Wr and Rd */
+ jsr asm_dspi_wr_status
+ jsr asm_dspi_rd_status
+
+ /* Transfer serial boot header to sram */
+asm_dspi_rd_loop1:
+ move.l #0x80020000, %d2
+ jsr asm_dspi_wr_status
+ jsr asm_dspi_rd_status
+
+ move.b %d1, (%a0) /* read, copy to dst */
+
+ add.l #1, %a0 /* inc dst by 1 */
+ sub.l #1, %d4 /* dec cnt by 1 */
+ bne asm_dspi_rd_loop1
+
+ /* Transfer u-boot from serial flash to memory */
+asm_dspi_rd_loop2:
+ move.l #0x80020000, %d2
+ jsr asm_dspi_wr_status
+ jsr asm_dspi_rd_status
+
+ move.b %d1, (%a4) /* read, copy to dst */
+
+ add.l #1, %a4 /* inc dst by 1 */
+ sub.l #1, %d5 /* dec cnt by 1 */
+ bne asm_dspi_rd_loop2
+
+ move.l #0x00020000, %d2 /* Terminate */
+ jsr asm_dspi_wr_status
+ jsr asm_dspi_rd_status
+
+ /* jump to memory and execute */
+ move.l #(TEXT_BASE + 0x400), %a0
+ jmp (%a0)
+
+asm_dspi_wr_status:
+ move.l (%a1), %d0 /* status */
+ and.l #0x0000F000, %d0
+ cmp.l #0x00003000, %d0
+ bgt asm_dspi_wr_status
+
+ move.l %d2, (%a2)
+ rts
+
+asm_dspi_rd_status:
+ move.l (%a1), %d0 /* status */
+ and.l #0x000000F0, %d0
+ lsr.l #4, %d0
+ cmp.l #0, %d0
+ beq asm_dspi_rd_status
+
+ move.b (%a3), %d1
+ rts
+#endif /* CONFIG_CF_SBF */
+
+ .text
+ . = 0x400
.globl _start
_start:
nop
@@ -132,11 +377,16 @@ _start:
move.w #0x2700,%sr /* Mask off Interrupt */
/* Set vector base register at the beginning of the Flash */
+#if defined(CONFIG_CF_SBF)
+ move.l #TEXT_BASE, %d0
+ movec %d0, %VBR
+#else
move.l #CFG_FLASH_BASE, %d0
movec %d0, %VBR
move.l #(CFG_INIT_RAM_ADDR + CFG_INIT_RAM_CTRL), %d0
movec %d0, %RAMBAR1
+#endif
/* initialize general use internal ram */
move.l #0, %d0
@@ -253,7 +503,7 @@ clear_bss:
/* exception code */
.globl _fault
_fault:
- bra _fault
+ jmp _fault
.globl _exc_handler
_exc_handler:
diff --git a/include/configs/M54455EVB.h b/include/configs/M54455EVB.h
index 936766a..b7b5da0 100644
--- a/include/configs/M54455EVB.h
+++ b/include/configs/M54455EVB.h
@@ -121,18 +121,45 @@
#endif
#define CONFIG_HOSTNAME M54455EVB
+#ifdef CFG_STMICRO_BOOT
+/* ST Micro serial flash */
+#define CFG_LOAD_ADDR2 0x40010013
#define CONFIG_EXTRA_ENV_SETTINGS \
"netdev=eth0\0" \
"inpclk=" MK_STR(CFG_INPUT_CLKSRC) "\0" \
- "loadaddr=40010000\0" \
- "u-boot=u-boot.bin\0" \
- "load=tftp ${loadaddr) ${u-boot}\0" \
+ "loadaddr=0x40010000\0" \
+ "sbfhdr=sbfhdr.bin\0" \
+ "uboot=u-boot.bin\0" \
+ "load=tftp ${loadaddr} ${sbfhdr};" \
+ "tftp " MK_STR(CFG_LOAD_ADDR2) " ${uboot} \0" \
"upd=run load; run prog\0" \
- "prog=prot off 4000000 402ffff;" \
- "era 4000000 402ffff;" \
- "cp.b ${loadaddr} 0 ${filesize};" \
+ "prog=sf probe 0:1 10000 1;" \
+ "sf erase 0 30000;" \
+ "sf write ${loadaddr} 0 0x30000;" \
"save\0" \
""
+#else
+/* Atmel and Intel */
+#ifdef CFG_ATMEL_BOOT
+# define CFG_UBOOT_END 0x0403FFFF
+#elif defined(CFG_INTEL_BOOT)
+# define CFG_UBOOT_END 0x3FFFF
+#endif
+#define CONFIG_EXTRA_ENV_SETTINGS \
+ "netdev=eth0\0" \
+ "inpclk=" MK_STR(CFG_INPUT_CLKSRC) "\0" \
+ "loadaddr=0x40010000\0" \
+ "uboot=u-boot.bin\0" \
+ "load=tftp ${loadaddr} ${uboot}\0" \
+ "upd=run load; run prog\0" \
+ "prog=prot off " MK_STR(CFG_FLASH_BASE) \
+ " " MK_STR(CFG_UBOOT_END) ";" \
+ "era " MK_STR(CFG_FLASH_BASE) " " \
+ MK_STR(CFG_UBOOT_END) ";" \
+ "cp.b ${loadaddr} " MK_STR(CFG_FLASH_BASE)\
+ " ${filesize}; save\0" \
+ ""
+#endif
/* ATA configuration */
#define CONFIG_ISO_PARTITION
@@ -175,6 +202,8 @@
/* DSPI and Serial Flash */
#define CONFIG_CF_DSPI
#define CONFIG_HARD_SPI
+#define CFG_SER_FLASH_BASE 0x01000000
+#define CFG_SBFHDR_SIZE 0x13
#ifdef CONFIG_CMD_SPI
# define CFG_DSPI_DCTAR0 (DSPI_DCTAR_TRSZ(7) | \
DSPI_DCTAR_CPOL | \
@@ -221,7 +250,7 @@
/* Input, PCI, Flexbus, and VCO */
#define CONFIG_EXTRA_CLOCK
-#define CONFIG_PRAM 512 /* 512 KB */
+#define CONFIG_PRAM 2048 /* 2048 KB */
#define CFG_PROMPT "-> "
#define CFG_LONGHELP /* undef to save memory */
@@ -254,8 +283,9 @@
#define CFG_INIT_RAM_END 0x8000 /* End of used area in internal SRAM */
#define CFG_INIT_RAM_CTRL 0x221
#define CFG_GBL_DATA_SIZE 128 /* size in bytes reserved for initial data */
-#define CFG_GBL_DATA_OFFSET ((CFG_INIT_RAM_END - CFG_GBL_DATA_SIZE) - 16)
+#define CFG_GBL_DATA_OFFSET ((CFG_INIT_RAM_END - CFG_GBL_DATA_SIZE) - 32)
#define CFG_INIT_SP_OFFSET CFG_GBL_DATA_OFFSET
+#define CFG_SBFHDR_DATA_OFFSET (CFG_INIT_RAM_END - 32)
/*-----------------------------------------------------------------------
* Start addresses for the final memory configuration
@@ -270,11 +300,16 @@
#define CFG_SDRAM_CTRL 0xEA0B2000
#define CFG_SDRAM_EMOD 0x40010000
#define CFG_SDRAM_MODE 0x00010033
+#define CFG_SDRAM_DRV_STRENGTH 0xAA
#define CFG_MEMTEST_START CFG_SDRAM_BASE + 0x400
#define CFG_MEMTEST_END ((CFG_SDRAM_SIZE - 3) << 20)
-#define CFG_MONITOR_BASE (CFG_FLASH_BASE + 0x400)
+#ifdef CONFIG_CF_SBF
+# define CFG_MONITOR_BASE (TEXT_BASE + 0x400)
+#else
+# define CFG_MONITOR_BASE (CFG_FLASH_BASE + 0x400)
+#endif
#define CFG_BOOTPARAMS_LEN 64*1024
#define CFG_MONITOR_LEN (256 << 10) /* Reserve 256 kB for Monitor */
#define CFG_MALLOC_LEN (128 << 10) /* Reserve 128 kB for malloc() */
@@ -287,27 +322,44 @@
/* Initial Memory map for Linux */
#define CFG_BOOTMAPSZ (CFG_SDRAM_BASE + (CFG_SDRAM_SIZE << 20))
-/* Configuration for environment
+/*
+ * Configuration for environment
* Environment is embedded in u-boot in the second sector of the flash
*/
-#define CFG_ENV_IS_IN_FLASH 1
-#define CONFIG_ENV_OVERWRITE 1
+#ifdef CONFIG_CF_SBF
+# define CFG_ENV_IS_IN_SPI_FLASH
+# define CFG_ENV_SPI_CS 1
+#else
+# define CFG_ENV_IS_IN_FLASH 1
+#endif
+#undef CONFIG_ENV_OVERWRITE
#undef CFG_ENV_IS_EMBEDDED
/*-----------------------------------------------------------------------
* FLASH organization
*/
+#ifdef CFG_STMICRO_BOOT
+# define CFG_FLASH_BASE CFG_SER_FLASH_BASE
+# define CFG_FLASH0_BASE CFG_SER_FLASH_BASE
+# define CFG_FLASH1_BASE CFG_CS0_BASE
+# define CFG_FLASH2_BASE CFG_CS1_BASE
+# define CFG_ENV_OFFSET 0x30000
+# define CFG_ENV_SIZE 0x2000
+# define CFG_ENV_SECT_SIZE 0x10000
+#endif
#ifdef CFG_ATMEL_BOOT
# define CFG_FLASH_BASE CFG_CS0_BASE
# define CFG_FLASH0_BASE CFG_CS0_BASE
# define CFG_FLASH1_BASE CFG_CS1_BASE
# define CFG_ENV_ADDR (CFG_FLASH_BASE + 0x4000)
# define CFG_ENV_SECT_SIZE 0x2000
-#else
+#endif
+#ifdef CFG_INTEL_BOOT
# define CFG_FLASH_BASE CFG_CS0_BASE
# define CFG_FLASH0_BASE CFG_CS0_BASE
# define CFG_FLASH1_BASE CFG_CS1_BASE
-# define CFG_ENV_ADDR (CFG_FLASH_BASE + 0x60000)
+# define CFG_ENV_ADDR (CFG_FLASH_BASE + 0x40000)
+# define CFG_ENV_SIZE 0x2000
# define CFG_ENV_SECT_SIZE 0x20000
#endif
@@ -339,15 +391,23 @@
* This is setting for JFFS2 support in u-boot.
* NOTE: Enable CONFIG_CMD_JFFS2 for JFFS2 support.
*/
+#ifdef CONFIG_CMD_JFFS2
+#ifdef CF_STMICRO_BOOT
+# define CONFIG_JFFS2_DEV "nor1"
+# define CONFIG_JFFS2_PART_SIZE 0x01000000
+# define CONFIG_JFFS2_PART_OFFSET (CFG_FLASH2_BASE + 0x500000)
+#endif
#ifdef CFG_ATMEL_BOOT
# define CONFIG_JFFS2_DEV "nor1"
# define CONFIG_JFFS2_PART_SIZE 0x01000000
# define CONFIG_JFFS2_PART_OFFSET (CFG_FLASH1_BASE + 0x500000)
-#else
+#endif
+#ifdef CFG_INTEL_BOOT
# define CONFIG_JFFS2_DEV "nor0"
# define CONFIG_JFFS2_PART_SIZE (0x01000000 - 0x500000)
# define CONFIG_JFFS2_PART_OFFSET (CFG_FLASH0_BASE + 0x500000)
#endif
+#endif
/*-----------------------------------------------------------------------
* Cache Configuration
@@ -366,7 +426,7 @@
* CS5 - Available
*/
-#ifdef CFG_ATMEL_BOOT
+#if defined(CFG_ATMEL_BOOT) || defined(CFG_STMICRO_BOOT)
/* Atmel Flash */
#define CFG_CS0_BASE 0x04000000
#define CFG_CS0_MASK 0x00070001
--
1.5.6.4
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