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openwrt-xburst/package/uboot-xburst/patches/0001-add-qi_lb60-spl-code-and-usbboot-code.patch

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uboot-xburst: update to v2012.10-rc2
2012-10-10 19:18:01 +03:00
From eb328666f9381a1bd2059484a4aef024285be045 Mon Sep 17 00:00:00 2001
From: Xiangfu Liu <xiangfu@openmobilefree.net>
Date: Fri, 6 Jan 2012 17:05:11 +0800
Subject: [PATCH 1/5] add qi_lb60 spl code and usbboot code
---
arch/mips/cpu/xburst/Makefile | 7 +-
arch/mips/cpu/xburst/cpu.c | 4 +
arch/mips/cpu/xburst/jz4740.c | 84 ++--
arch/mips/cpu/xburst/spl/Makefile | 47 ++
arch/mips/cpu/xburst/spl/start.S | 65 +++
arch/mips/lib/Makefile | 4 +
arch/mips/lib/string.c | 32 ++
board/qi/qi_lb60/Makefile | 5 +
board/qi/qi_lb60/qi_lb60-spl.c | 56 +++
board/qi/qi_lb60/qi_lb60.c | 6 +-
board/qi/qi_lb60/u-boot-spl.lds | 62 +++
board/qi/qi_lb60/usbboot.S | 880 +++++++++++++++++++++++++++++++++++++
drivers/mtd/nand/jz4740_nand.c | 39 +-
include/configs/qi_lb60.h | 173 ++++----
14 files changed, 1319 insertions(+), 145 deletions(-)
create mode 100644 arch/mips/cpu/xburst/spl/Makefile
create mode 100644 arch/mips/cpu/xburst/spl/start.S
create mode 100644 arch/mips/lib/string.c
create mode 100644 board/qi/qi_lb60/qi_lb60-spl.c
create mode 100644 board/qi/qi_lb60/u-boot-spl.lds
create mode 100644 board/qi/qi_lb60/usbboot.S
diff --git a/arch/mips/cpu/xburst/Makefile b/arch/mips/cpu/xburst/Makefile
index b1f2ae4..ec35e55 100644
--- a/arch/mips/cpu/xburst/Makefile
+++ b/arch/mips/cpu/xburst/Makefile
@@ -24,9 +24,12 @@ include $(TOPDIR)/config.mk
LIB = $(obj)lib$(CPU).o
+COBJS-y = cpu.o jz_serial.o
+
+ifneq ($(CONFIG_SPL_BUILD),y)
START = start.o
-SOBJS-y =
-COBJS-y = cpu.o timer.o jz_serial.o
+COBJS-y += timer.o
+endif
COBJS-$(CONFIG_JZ4740) += jz4740.o
diff --git a/arch/mips/cpu/xburst/cpu.c b/arch/mips/cpu/xburst/cpu.c
index ddcbfaa..1432838 100644
--- a/arch/mips/cpu/xburst/cpu.c
+++ b/arch/mips/cpu/xburst/cpu.c
@@ -42,6 +42,8 @@
: \
: "i" (op), "R" (*(unsigned char *)(addr)))
+#ifndef CONFIG_SPL_BUILD
+
void __attribute__((weak)) _machine_restart(void)
{
struct jz4740_wdt *wdt = (struct jz4740_wdt *)JZ4740_WDT_BASE;
@@ -109,6 +111,8 @@ void invalidate_dcache_range(ulong start_addr, ulong stop)
cache_op(Hit_Invalidate_D, addr);
}
+#endif
+
void flush_icache_all(void)
{
u32 addr, t = 0;
diff --git a/arch/mips/cpu/xburst/jz4740.c b/arch/mips/cpu/xburst/jz4740.c
index c0b9817..40ef411 100644
--- a/arch/mips/cpu/xburst/jz4740.c
+++ b/arch/mips/cpu/xburst/jz4740.c
@@ -32,31 +32,19 @@ int disable_interrupts(void)
return 0;
}
-/*
- * PLL output clock = EXTAL * NF / (NR * NO)
- * NF = FD + 2, NR = RD + 2
- * NO = 1 (if OD = 0), NO = 2 (if OD = 1 or 2), NO = 4 (if OD = 3)
- */
void pll_init(void)
{
struct jz4740_cpm *cpm = (struct jz4740_cpm *)JZ4740_CPM_BASE;
- register unsigned int cfcr, plcr1;
- int n2FR[33] = {
- 0, 0, 1, 2, 3, 0, 4, 0, 5, 0, 0, 0, 6, 0, 0, 0,
- 7, 0, 0, 0, 0, 0, 0, 0, 8, 0, 0, 0, 0, 0, 0, 0,
- 9
- };
- int div[5] = {1, 3, 3, 3, 3}; /* divisors of I:S:P:L:M */
- int nf, pllout2;
+ register unsigned int cfcr, plcr;
+ unsigned int nf, pllout2;
cfcr = CPM_CPCCR_CLKOEN |
- CPM_CPCCR_PCS |
- (n2FR[div[0]] << CPM_CPCCR_CDIV_BIT) |
- (n2FR[div[1]] << CPM_CPCCR_HDIV_BIT) |
- (n2FR[div[2]] << CPM_CPCCR_PDIV_BIT) |
- (n2FR[div[3]] << CPM_CPCCR_MDIV_BIT) |
- (n2FR[div[4]] << CPM_CPCCR_LDIV_BIT);
+ (0 << CPM_CPCCR_CDIV_BIT) |
+ (2 << CPM_CPCCR_HDIV_BIT) |
+ (2 << CPM_CPCCR_PDIV_BIT) |
+ (2 << CPM_CPCCR_MDIV_BIT) |
+ (2 << CPM_CPCCR_LDIV_BIT);
pllout2 = (cfcr & CPM_CPCCR_PCS) ?
CONFIG_SYS_CPU_SPEED : (CONFIG_SYS_CPU_SPEED / 2);
@@ -65,15 +53,18 @@ void pll_init(void)
writel(pllout2 / 48000000 - 1, &cpm->uhccdr);
nf = CONFIG_SYS_CPU_SPEED * 2 / CONFIG_SYS_EXTAL;
- plcr1 = ((nf - 2) << CPM_CPPCR_PLLM_BIT) | /* FD */
+ plcr = ((nf - 2) << CPM_CPPCR_PLLM_BIT) | /* FD */
(0 << CPM_CPPCR_PLLN_BIT) | /* RD=0, NR=2 */
(0 << CPM_CPPCR_PLLOD_BIT) | /* OD=0, NO=1 */
- (0x20 << CPM_CPPCR_PLLST_BIT) | /* PLL stable time */
+ (0x32 << CPM_CPPCR_PLLST_BIT) | /* PLL stable time */
CPM_CPPCR_PLLEN; /* enable PLL */
/* init PLL */
writel(cfcr, &cpm->cpccr);
- writel(plcr1, &cpm->cppcr);
+ writel(plcr, &cpm->cppcr);
+
+ while (!(readl(&cpm->cppcr) & CPM_CPPCR_PLLS))
+ ;
}
void sdram_init(void)
@@ -92,26 +83,14 @@ void sdram_init(void)
2 << EMC_DMCR_TCL_BIT /* CAS latency is 3 */
};
- int div[] = {1, 2, 3, 4, 6, 8, 12, 16, 24, 32};
+ unsigned int div[] = {1, 2, 3, 4, 6, 8, 12, 16, 24, 32};
cpu_clk = CONFIG_SYS_CPU_SPEED;
- mem_clk = cpu_clk * div[__cpm_get_cdiv()] / div[__cpm_get_mdiv()];
+ mem_clk = 84000000;
writel(0, &emc->bcr); /* Disable bus release */
writew(0, &emc->rtcsr); /* Disable clock for counting */
- /* Fault DMCR value for mode register setting*/
-#define SDRAM_ROW0 11
-#define SDRAM_COL0 8
-#define SDRAM_BANK40 0
-
- dmcr0 = ((SDRAM_ROW0 - 11) << EMC_DMCR_RA_BIT) |
- ((SDRAM_COL0 - 8) << EMC_DMCR_CA_BIT) |
- (SDRAM_BANK40 << EMC_DMCR_BA_BIT) |
- (SDRAM_BW16 << EMC_DMCR_BW_BIT) |
- EMC_DMCR_EPIN |
- cas_latency_dmcr[((SDRAM_CASL == 3) ? 1 : 0)];
-
/* Basic DMCR value */
dmcr = ((SDRAM_ROW - 11) << EMC_DMCR_RA_BIT) |
((SDRAM_COL - 8) << EMC_DMCR_CA_BIT) |
@@ -128,36 +107,36 @@ void sdram_init(void)
if (tmp > 11)
tmp = 11;
dmcr |= (tmp - 4) << EMC_DMCR_TRAS_BIT;
- tmp = SDRAM_RCD / ns;
+ tmp = SDRAM_RCD / ns;
if (tmp > 3)
tmp = 3;
dmcr |= tmp << EMC_DMCR_RCD_BIT;
- tmp = SDRAM_TPC / ns;
+ tmp = SDRAM_TPC / ns;
if (tmp > 7)
tmp = 7;
dmcr |= tmp << EMC_DMCR_TPC_BIT;
- tmp = SDRAM_TRWL / ns;
+ tmp = SDRAM_TRWL / ns;
if (tmp > 3)
tmp = 3;
dmcr |= tmp << EMC_DMCR_TRWL_BIT;
- tmp = (SDRAM_TRAS + SDRAM_TPC) / ns;
+ tmp = (SDRAM_TRAS + SDRAM_TPC) / ns;
if (tmp > 14)
tmp = 14;
dmcr |= ((tmp + 1) >> 1) << EMC_DMCR_TRC_BIT;
/* SDRAM mode value */
- sdmode = EMC_SDMR_BT_SEQ |
- EMC_SDMR_OM_NORMAL |
- EMC_SDMR_BL_4 |
+ sdmode = EMC_SDMR_BT_SEQ |
+ EMC_SDMR_OM_NORMAL |
+ EMC_SDMR_BL_4 |
cas_latency_sdmr[((SDRAM_CASL == 3) ? 1 : 0)];
/* Stage 1. Precharge all banks by writing SDMR with DMCR.MRSET=0 */
writel(dmcr, &emc->dmcr);
- writeb(0, JZ4740_EMC_SDMR0 | sdmode);
+ writeb(0, JZ4740_EMC_SDMR0 + sdmode);
/* Wait for precharge, > 200us */
tmp = (cpu_clk / 1000000) * 1000;
@@ -172,8 +151,8 @@ void sdram_init(void)
if (tmp > 0xff)
tmp = 0xff;
writew(tmp, &emc->rtcor);
+
writew(0, &emc->rtcnt);
- /* Divisor is 64, CKO/64 */
writew(EMC_RTCSR_CKS_64, &emc->rtcsr);
/* Wait for number of auto-refresh cycles */
@@ -182,13 +161,17 @@ void sdram_init(void)
;
/* Stage 3. Mode Register Set */
+ dmcr0 = (11 << EMC_DMCR_RA_BIT) |
+ (8 << EMC_DMCR_CA_BIT) |
+ (0 << EMC_DMCR_BA_BIT) |
+ EMC_DMCR_EPIN |
+ (SDRAM_BW16 << EMC_DMCR_BW_BIT) |
+ cas_latency_dmcr[((SDRAM_CASL == 3) ? 1 : 0)];
writel(dmcr0 | EMC_DMCR_RFSH | EMC_DMCR_MRSET, &emc->dmcr);
writeb(0, JZ4740_EMC_SDMR0 | sdmode);
/* Set back to basic DMCR value */
writel(dmcr | EMC_DMCR_RFSH | EMC_DMCR_MRSET, &emc->dmcr);
-
- /* everything is ok now */
}
DECLARE_GLOBAL_DATA_PTR;
@@ -232,9 +215,10 @@ void rtc_init(void)
phys_size_t initdram(int board_type)
{
struct jz4740_emc *emc = (struct jz4740_emc *)JZ4740_EMC_BASE;
- u32 dmcr;
- u32 rows, cols, dw, banks;
- ulong size;
+
+ unsigned int dmcr;
+ unsigned int rows, cols, dw, banks;
+ unsigned long size;
dmcr = readl(&emc->dmcr);
rows = 11 + ((dmcr & EMC_DMCR_RA_MASK) >> EMC_DMCR_RA_BIT);
diff --git a/arch/mips/cpu/xburst/spl/Makefile b/arch/mips/cpu/xburst/spl/Makefile
new file mode 100644
index 0000000..f45e8c8
--- /dev/null
+++ b/arch/mips/cpu/xburst/spl/Makefile
@@ -0,0 +1,47 @@
+#
+# Copyright (C) 2011 Xiangfu Liu <xiangfu@openmobilefree.net>
+#
+# 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 = $(obj)lib$(CPU).o
+
+START = start.o
+SOBJS-y =
+COBJS-y =
+
+SRCS := $(START:.o=.S) $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c)
+OBJS := $(addprefix $(obj),$(SOBJS-y) $(COBJS-y))
+START := $(addprefix $(obj),$(START))
+
+all: $(obj).depend $(START) $(LIB)
+
+$(LIB): $(OBJS)
+ $(call cmd_link_o_target, $(OBJS))
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/arch/mips/cpu/xburst/spl/start.S b/arch/mips/cpu/xburst/spl/start.S
new file mode 100644
index 0000000..44dd1e0
--- /dev/null
+++ b/arch/mips/cpu/xburst/spl/start.S
@@ -0,0 +1,65 @@
+/*
+ * Startup Code for MIPS32 XBURST CPU-core
+ *
+ * Copyright (c) 2010 Xiangfu Liu <xiangfu@sharism.cc>
+ *
+ * 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 3 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/regdef.h>
+#include <asm/mipsregs.h>
+#include <asm/addrspace.h>
+#include <asm/cacheops.h>
+
+#include <asm/jz4740.h>
+
+ .set noreorder
+
+ .globl _start
+ .text
+_start:
+ .word JZ4740_NANDBOOT_CFG /* fetched during NAND Boot */
+reset:
+ /*
+ * STATUS register
+ * CU0=UM=EXL=IE=0, BEV=ERL=1, IP2~7=1
+ */
+ li t0, 0x0040FC04
+ mtc0 t0, CP0_STATUS
+ /*
+ * CAUSE register
+ * IV=1, use the specical interrupt vector (0x200)
+ */
+ li t1, 0x00800000
+ mtc0 t1, CP0_CAUSE
+
+ bal 1f
+ nop
+ .word _GLOBAL_OFFSET_TABLE_
+1:
+ move gp, ra
+ lw t1, 0(ra)
+ move gp, t1
+
+ la sp, 0x80004000
+ la t9, nand_spl_boot
+ j t9
+ nop
diff --git a/arch/mips/lib/Makefile b/arch/mips/lib/Makefile
index 967e98a..c1452a2 100644
--- a/arch/mips/lib/Makefile
+++ b/arch/mips/lib/Makefile
@@ -34,12 +34,16 @@ LGOBJS := $(addprefix $(obj),$(GLSOBJS))
SOBJS-y +=
+ifeq ($(CONFIG_SPL_BUILD),y)
+COBJS-y += string.o
+else
COBJS-y += board.o
ifeq ($(CONFIG_QEMU_MIPS),y)
COBJS-y += bootm_qemu_mips.o
else
COBJS-y += bootm.o
endif
+endif
SRCS := $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c)
OBJS := $(addprefix $(obj),$(SOBJS-y) $(COBJS-y))
diff --git a/arch/mips/lib/string.c b/arch/mips/lib/string.c
new file mode 100644
index 0000000..d59f44a
--- /dev/null
+++ b/arch/mips/lib/string.c
@@ -0,0 +1,32 @@
+/*
+ * Copyright (c) 2012 Xiangfu Liu <xiangfu@openmobilefree.net>
+ *
+ * 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
+ */
+
+/* copy from lib/string bcopy */
+char * memcpy(const char * src, char * dest, int count)
+{
+ char *tmp = dest;
+
+ while (count--)
+ *tmp++ = *src++;
+
+ return dest;
+}
diff --git a/board/qi/qi_lb60/Makefile b/board/qi/qi_lb60/Makefile
index 5dae11b..6dd8c6f 100644
--- a/board/qi/qi_lb60/Makefile
+++ b/board/qi/qi_lb60/Makefile
@@ -22,7 +22,12 @@ include $(TOPDIR)/config.mk
LIB = $(obj)lib$(BOARD).o
+ifeq ($(CONFIG_SPL_BUILD),y)
+SOBJS := usbboot.o
+COBJS := $(BOARD)-spl.o
+else
COBJS := $(BOARD).o
+endif
SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c)
OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS))
diff --git a/board/qi/qi_lb60/qi_lb60-spl.c b/board/qi/qi_lb60/qi_lb60-spl.c
new file mode 100644
index 0000000..f5031aa
--- /dev/null
+++ b/board/qi/qi_lb60/qi_lb60-spl.c
@@ -0,0 +1,56 @@
+/*
+ * Authors: Xiangfu Liu <xiangfu@sharism.cc>
+ *
+ * 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
+ * 3 of the License, or (at your option) any later version.
+ */
+
+#include <common.h>
+#include <nand.h>
+#include <asm/io.h>
+#include <asm/jz4740.h>
+
+#define KEY_U_OUT (32 * 2 + 16)
+#define KEY_U_IN (32 * 3 + 19)
+
+static int is_usb_boot()
+{
+ __gpio_as_input(KEY_U_IN);
+ __gpio_enable_pull(KEY_U_IN);
+ __gpio_as_output(KEY_U_OUT);
+ __gpio_clear_pin(KEY_U_OUT);
+
+ if (__gpio_get_pin(KEY_U_IN) == 0)
+ return 1;
+
+ return 0;
+}
+
+static struct jz4740_emc * emc = (struct jz4740_emc *)JZ4740_EMC_BASE;
+
+void nand_spl_boot(void)
+{
+ uint32_t reg;
+
+ __gpio_as_sdram_16bit_4720();
+ __gpio_as_uart0();
+ __gpio_jtag_to_uart0();
+
+ serial_init();
+ serial_puts("\nQi lb60 SPL\n");
+
+ pll_init();
+ sdram_init();
+
+ if (is_usb_boot()) {
+ serial_puts("[U] pressed, goto USBBOOT mode\n");
+ usb_boot();
+ }
+
+ nand_init();
+
+ serial_puts("\nStarting U-Boot ...\n");
+ nand_boot();
+}
diff --git a/board/qi/qi_lb60/qi_lb60.c b/board/qi/qi_lb60/qi_lb60.c
index d975209..553e05d 100644
--- a/board/qi/qi_lb60/qi_lb60.c
+++ b/board/qi/qi_lb60/qi_lb60.c
@@ -97,8 +97,10 @@ int board_early_init_f(void)
/* U-Boot common routines */
int checkboard(void)
{
- printf("Board: Qi LB60 (Ingenic XBurst Jz4740 SoC, Speed %ld MHz)\n",
- gd->cpu_clk / 1000000);
+ printf("Board: Qi LB60 (Ingenic XBurst Jz4740 SoC)\n");
+ printf(" CPU: %ld \n", gd->cpu_clk);
+ printf(" MEM: %ld \n", gd->mem_clk);
+ printf(" DEV: %ld \n", gd->dev_clk);
return 0;
}
diff --git a/board/qi/qi_lb60/u-boot-spl.lds b/board/qi/qi_lb60/u-boot-spl.lds
new file mode 100644
index 0000000..cf80c35
--- /dev/null
+++ b/board/qi/qi_lb60/u-boot-spl.lds
@@ -0,0 +1,62 @@
+/*
+ * (C) Copyright 2005
+ * Ingenic Semiconductor, <jlwei@ingenic.cn>
+ *
+ * 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_FORMAT("elf32-tradlittlemips", "elf32-tradlittlemips", "elf32-tradlittlemips")
+
+OUTPUT_ARCH(mips)
+ENTRY(_start)
+SECTIONS
+{
+ . = 0x80000000;
+ . = ALIGN(4);
+ .text :
+ {
+ *(.text)
+ }
+
+ . = ALIGN(4);
+ .rodata : { *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*))) }
+
+ . = ALIGN(4);
+ .data : { *(.data) }
+
+ . = ALIGN(4);
+ .sdata : { *(.sdata) }
+
+ _gp = ALIGN(16);
+
+ __got_start = .;
+ .got : { *(.got) }
+ __got_end = .;
+
+ . = .;
+ __u_boot_cmd_start = .;
+ .u_boot_cmd : { *(.u_boot_cmd) }
+ __u_boot_cmd_end = .;
+
+ uboot_end_data = .;
+ num_got_entries = (__got_end - __got_start) >> 2;
+
+ . = ALIGN(4);
+ .sbss : { *(.sbss) }
+ .bss : { *(.bss) }
+ uboot_end = .;
+}
+ASSERT(uboot_end <= 0x80002000, "NAND bootstrap too big");
diff --git a/board/qi/qi_lb60/usbboot.S b/board/qi/qi_lb60/usbboot.S
new file mode 100644
index 0000000..eb8faa6
--- /dev/null
+++ b/board/qi/qi_lb60/usbboot.S
@@ -0,0 +1,880 @@
+/*
+ * for jz4740 usb boot
+ *
+ * Copyright (c) 2009 Author: <jlwei@ingenic.cn>
+ *
+ * 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
+ */
+ .set noreorder
+ .globl usb_boot
+ .text
+
+//----------------------------------------------------------------------
+// Both NAND and USB boot load data to D-Cache first, then transfer
+// data from D-Cache to I-Cache, and jump to execute the code in I-Cache.
+// So init caches first and then dispatch to a proper boot routine.
+//----------------------------------------------------------------------
+
+.macro load_addr reg addr
+ li \reg, 0x80000000
+ addiu \reg, \reg, \addr
+ la $2, usbboot_begin
+ subu \reg, \reg, $2
+.endm
+
+usb_boot:
+ //--------------------------------------------------------------
+ // Initialize PLL: set ICLK to 84MHz and HCLK to 42MHz.
+ //--------------------------------------------------------------
+ la $9, 0xB0000000 // CPCCR: Clock Control Register
+ la $8, 0x42041110 // I:S:M:P=1:2:2:2
+ sw $8, 0($9)
+
+ la $9, 0xB0000010 // CPPCR: PLL Control Register
+ la $8, 0x06000120 // M=12 N=0 D=0 CLK=12*(M+2)/(N+2)
+ sw $8, 0($9)
+
+ mtc0 $0, $26 // CP0_ERRCTL, restore WST reset state
+ nop
+
+ mtc0 $0, $16 // CP0_CONFIG
+ nop
+
+ // Relocate code to beginning of the ram
+
+ la $2, usbboot_begin
+ la $3, usbboot_end
+ li $4, 0x80000000
+
+1:
+ lw $5, 0($2)
+ sw $5, 0($4)
+ addiu $2, $2, 4
+ bne $2, $3, 1b
+ addiu $4, $4, 4
+
+ li $2, 0x80000000
+ ori $3, $2, 0
+ addiu $3, $3, usbboot_end
+ la $4, usbboot_begin
+ subu $3, $3, $4
+
+
+2:
+ cache 0x0, 0($2) // Index_Invalidate_I
+ cache 0x1, 0($2) // Index_Writeback_Inv_D
+ addiu $2, $2, 32
+ subu $4, $3, $2
+ bgtz $4, 2b
+ nop
+
+ load_addr $3, usb_boot_return
+
+ jr $3
+
+usbboot_begin:
+
+init_caches:
+ li $2, 3 // cacheable for kseg0 access
+ mtc0 $2, $16 // CP0_CONFIG
+ nop
+
+ li $2, 0x20000000 // enable idx-store-data cache insn
+ mtc0 $2, $26 // CP0_ERRCTL
+
+ ori $2, $28, 0 // start address
+ ori $3, $2, 0x3fe0 // end address, total 16KB
+ mtc0 $0, $28, 0 // CP0_TAGLO
+ mtc0 $0, $28, 1 // CP0_DATALO
+cache_clear_a_line:
+ cache 0x8, 0($2) // Index_Store_Tag_I
+ cache 0x9, 0($2) // Index_Store_Tag_D
+ bne $2, $3, cache_clear_a_line
+ addiu $2, $2, 32 // increment CACHE_LINE_SIZE
+
+ ori $2, $28, 0 // start address
+ ori $3, $2, 0x3fe0 // end address, total 16KB
+ la $4, 0x1ffff000 // physical address and 4KB page mask
+cache_alloc_a_line:
+ and $5, $2, $4
+ ori $5, $5, 1 // V bit of the physical tag
+ mtc0 $5, $28, 0 // CP0_TAGLO
+ cache 0x8, 0($2) // Index_Store_Tag_I
+ cache 0x9, 0($2) // Index_Store_Tag_D
+ bne $2, $3, cache_alloc_a_line
+ addiu $2, $2, 32 // increment CACHE_LINE_SIZE
+
+ nop
+ nop
+ nop
+ //--------------------------------------------------------------
+ // Transfer data from dcache to icache, then jump to icache.
+ //
+ // Input parameters:
+ //
+ // $19: data length in bytes
+ // $20: jump target address
+ //--------------------------------------------------------------
+xfer_d2i:
+
+ ori $8, $20, 0
+ addu $9, $8, $19 // total 16KB
+
+1:
+ cache 0x0, 0($8) // Index_Invalidate_I
+ cache 0x1, 0($8) // Index_Writeback_Inv_D
+ bne $8, $9, 1b
+ addiu $8, $8, 32
+
+ // flush write-buffer
+ sync
+
+ // Invalidate BTB
+ mfc0 $8, $16, 7 // CP0_CONFIG
+ nop
+ ori $8, 2
+ mtc0 $8, $16, 7
+ nop
+
+ // Overwrite config to disable ram initalisation
+ li $2, 0xff
+ sb $2, 20($20)
+
+ jalr $20
+ nop
+
+icache_return:
+ //--------------------------------------------------------------
+ // User code can return to here after executing itself in
+ // icache, by jumping to $31.
+ //--------------------------------------------------------------
+ b usb_boot_return
+ nop
+
+
+usb_boot_return:
+ //--------------------------------------------------------------
+ // Enable the USB PHY
+ //--------------------------------------------------------------
+ la $9, 0xB0000024 // CPM_SCR
+ lw $8, 0($9)
+ ori $8, 0x40 // USBPHY_ENABLE
+ sw $8, 0($9)
+
+ //--------------------------------------------------------------
+ // Initialize USB registers
+ //--------------------------------------------------------------
+ la $27, 0xb3040000 // USB registers base address
+
+ sb $0, 0x0b($27) // INTRUSBE: disable common USB interrupts
+ sh $0, 0x06($27) // INTRINE: disable EPIN interrutps
+ sh $0, 0x08($27) // INTROUTE: disable EPOUT interrutps
+
+ li $9, 0x61
+ sb $9, 0x01($27) // POWER: HSENAB | SUSPENDM | SOFTCONN
+
+ //--------------------------------------------------------------
+ // Initialize USB states
+ //--------------------------------------------------------------
+ li $22, 0 // set EP0 to IDLE state
+ li $23, 1 // no data stage
+
+ //--------------------------------------------------------------
+ // Main loop of polling the usb commands
+ //--------------------------------------------------------------
+usb_command_loop:
+ lbu $9, 0x0a($27) // read INTRUSB
+ andi $9, 0x04 // check USB_INTR_RESET
+ beqz $9, check_intr_ep0in
+ nop
+
+ //--------------------------------------------------------------
+ // 1. Handle USB reset interrupt
+ //--------------------------------------------------------------
+handle_reset_intr:
+ lbu $9, 0x01($27) // read POWER
+ andi $9, 0x10 // test HS_MODE
+ bnez $9, _usb_set_maxpktsize
+ li $9, 512 // max packet size of HS mode
+ li $9, 64 // max packet size of FS mode
+
+_usb_set_maxpktsize:
+ li $8, 1
+ sb $8, 0x0e($27) // set INDEX 1
+
+ sh $9, 0x10($27) // INMAXP
+ sb $0, 0x13($27) // INCSRH
+ sh $9, 0x14($27) // OUTMAXP
+ sb $0, 0x17($27) // OUTCSRH
+
+_usb_flush_fifo:
+ li $8, 0x48 // INCSR_CDT && INCSR_FF
+ sb $8, 0x12($27) // INCSR
+ li $8, 0x90 // OUTCSR_CDT && OUTCSR_FF
+ sb $8, 0x16($27) // OUTCSR
+
+ li $22, 0 // set EP0 to IDLE state
+ li $23, 1 // no data stage
+
+ //--------------------------------------------------------------
+ // 2. Check and handle EP0 interrupt
+ //--------------------------------------------------------------
+check_intr_ep0in:
+ lhu $10, 0x02($27) // read INTRIN
+ andi $9, $10, 0x1 // check EP0 interrupt
+ beqz $9, check_intr_ep1in
+ nop
+
+handle_ep0_intr:
+ sb $0, 0x0e($27) // set INDEX 0
+ lbu $11, 0x12($27) // read CSR0
+
+ andi $9, $11, 0x04 // check SENTSTALL
+ beqz $9, _ep0_setupend
+ nop
+
+_ep0_sentstall:
+ andi $9, $11, 0xdb
+ sb $9, 0x12($27) // clear SENDSTALL and SENTSTALL
+ li $22, 0 // set EP0 to IDLE state
+
+_ep0_setupend:
+ andi $9, $11, 0x10 // check SETUPEND
+ beqz $9, ep0_idle_state
+ nop
+
+ ori $9, $11, 0x80
+ sb $9, 0x12($27) // set SVDSETUPEND
+ li $22, 0 // set EP0 to IDLE state
+
+ep0_idle_state:
+ bnez $22, ep0_tx_state
+ nop
+
+ //--------------------------------------------------------------
+ // 2.1 Handle EP0 IDLE state interrupt
+ //--------------------------------------------------------------
+ andi $9, $11, 0x01 // check OUTPKTRDY
+ beqz $9, check_intr_ep1in
+ nop
+
+ //--------------------------------------------------------------
+ // Read 8-bytes setup packet from the FIFO
+ //--------------------------------------------------------------
+ lw $25, 0x20($27) // first word of setup packet
+ lw $26, 0x20($27) // second word of setup packet
+
+ andi $9, $25, 0x60 // bRequestType & USB_TYPE_MASK
+ beqz $9, _ep0_std_req
+ nop
+
+ //--------------------------------------------------------------
+ // 2.1.1 Vendor-specific setup request
+ //--------------------------------------------------------------
+_ep0_vend_req:
+ li $22, 0 // set EP0 to IDLE state
+ li $23, 1 // NoData = 1
+
+ andi $9, $25, 0xff00 // check bRequest
+ srl $9, $9, 8
+ beqz $9, __ep0_get_cpu_info
+ sub $8, $9, 0x1
+ beqz $8, __ep0_set_data_address
+ sub $8, $9, 0x2
+ beqz $8, __ep0_set_data_length
+ sub $8, $9, 0x3
+ beqz $8, __ep0_flush_caches
+ sub $8, $9, 0x4
+ beqz $8, __ep0_prog_start1
+ sub $8, $9, 0x5
+ beqz $8, __ep0_prog_start2
+ nop
+ b _ep0_idle_state_fini // invalid request
+ nop
+
+__ep0_get_cpu_info:
+ load_addr $20, cpu_info_data // data pointer to transfer
+ li $21, 8 // bytes left to transfer
+ li $22, 1 // set EP0 to TX state
+ li $23, 0 // NoData = 0
+
+ b _ep0_idle_state_fini
+ nop
+
+__ep0_set_data_address:
+ li $9, 0xffff0000
+ and $9, $25, $9
+ andi $8, $26, 0xffff
+ or $20, $9, $8 // data address of next transfer
+
+ b _ep0_idle_state_fini
+ nop
+
+__ep0_set_data_length:
+ li $9, 0xffff0000
+ and $9, $25, $9
+ andi $8, $26, 0xffff
+ or $21, $9, $8 // data length of next transfer
+
+ li $9, 0x48 // SVDOUTPKTRDY and DATAEND
+ sb $9, 0x12($27) // CSR0
+
+ // We must write packet to FIFO before EP1-IN interrupt here.
+ b handle_epin1_intr
+ nop
+
+__ep0_flush_caches:
+ // Flush dcache and invalidate icache.
+ li $8, 0x80000000
+ addi $9, $8, 0x3fe0 // total 16KB
+
+1:
+ cache 0x0, 0($8) // Index_Invalidate_I
+ cache 0x1, 0($8) // Index_Writeback_Inv_D
+ bne $8, $9, 1b
+ addiu $8, $8, 32
+
+ // flush write-buffer
+ sync
+
+ // Invalidate BTB
+ mfc0 $8, $16, 7 // CP0_CONFIG
+ nop
+ ori $8, 2
+ mtc0 $8, $16, 7
+ nop
+
+ b _ep0_idle_state_fini
+ nop
+
+__ep0_prog_start1:
+ li $9, 0x48 // SVDOUTPKTRDY and DATAEND
+ sb $9, 0x12($27) // CSR0
+
+ li $9, 0xffff0000
+ and $9, $25, $9
+ andi $8, $26, 0xffff
+ or $20, $9, $8 // target address
+
+ b xfer_d2i
+ li $19, 0x2000 // 16KB data length
+
+__ep0_prog_start2:
+ li $9, 0x48 // SVDOUTPKTRDY and DATAEND
+ sb $9, 0x12($27) // CSR0
+
+ li $9, 0xffff0000
+ and $9, $25, $9
+ andi $8, $26, 0xffff
+ or $20, $9, $8 // target address
+
+ jalr $20 // jump, and place the return address in $31
+ nop
+
+__ep0_prog_start2_return:
+ // User code can return to here after executing itself, by jumping to $31.
+ b usb_boot_return
+ nop
+
+ //--------------------------------------------------------------
+ // 2.1.2 Standard setup request
+ //--------------------------------------------------------------
+_ep0_std_req:
+ andi $12, $25, 0xff00 // check bRequest
+ srl $12, $12, 8
+ sub $9, $12, 0x05 // check USB_REQ_SET_ADDRESS
+ bnez $9, __ep0_req_set_config
+ nop
+
+ //--------------------------------------------------------------
+ // Handle USB_REQ_SET_ADDRESS
+ //--------------------------------------------------------------
+__ep0_req_set_addr:
+ srl $9, $25, 16 // get wValue
+ sb $9, 0x0($27) // set FADDR
+ li $23, 1 // NoData = 1
+ b _ep0_idle_state_fini
+ nop
+
+__ep0_req_set_config:
+ sub $9, $12, 0x09 // check USB_REQ_SET_CONFIGURATION
+ bnez $9, __ep0_req_get_desc
+ nop
+
+ //--------------------------------------------------------------
+ // Handle USB_REQ_SET_CONFIGURATION
+ //--------------------------------------------------------------
+ li $23, 1 // NoData = 1
+ b _ep0_idle_state_fini
+ nop
+
+__ep0_req_get_desc:
+ sub $9, $12, 0x06 // check USB_REQ_GET_DESCRIPTOR
+ bnez $9, _ep0_idle_state_fini
+ li $23, 1 // NoData = 1
+
+ //--------------------------------------------------------------
+ // Handle USB_REQ_GET_DESCRIPTOR
+ //--------------------------------------------------------------
+ li $23, 0 // NoData = 0
+
+ srl $9, $25, 24 // wValue >> 8
+ sub $8, $9, 0x01 // check USB_DT_DEVICE
+ beqz $8, ___ep0_get_dev_desc
+ srl $21, $26, 16 // get wLength
+ sub $8, $9, 0x02 // check USB_DT_CONFIG
+ beqz $8, ___ep0_get_conf_desc
+ sub $8, $9, 0x03 // check USB_DT_STRING
+ beqz $8, ___ep0_get_string_desc
+ sub $8, $9, 0x06 // check USB_DT_DEVICE_QUALIFIER
+ beqz $8, ___ep0_get_dev_qualifier
+ nop
+ b _ep0_idle_state_fini
+ nop
+
+___ep0_get_dev_desc:
+ load_addr $20, device_desc // data pointer
+ li $22, 1 // set EP0 to TX state
+ sub $8, $21, 18
+ blez $8, _ep0_idle_state_fini // wLength <= 18
+ nop
+ li $21, 18 // max length of device_desc
+ b _ep0_idle_state_fini
+ nop
+
+___ep0_get_dev_qualifier:
+ load_addr $20, dev_qualifier // data pointer
+ li $22, 1 // set EP0 to TX state
+ sub $8, $21, 10
+ blez $8, _ep0_idle_state_fini // wLength <= 10
+ nop
+ li $21, 10 // max length of dev_qualifier
+ b _ep0_idle_state_fini
+ nop
+
+___ep0_get_conf_desc:
+ load_addr $20, config_desc_fs // data pointer of FS mode
+ lbu $8, 0x01($27) // read POWER
+ andi $8, 0x10 // test HS_MODE
+ beqz $8, ___ep0_get_conf_desc2
+ nop
+ load_addr $20, config_desc_hs // data pointer of HS mode
+
+___ep0_get_conf_desc2:
+ li $22, 1 // set EP0 to TX state
+ sub $8, $21, 32
+ blez $8, _ep0_idle_state_fini // wLength <= 32
+ nop
+ li $21, 32 // max length of config_desc
+ b _ep0_idle_state_fini
+ nop
+
+___ep0_get_string_desc:
+ li $22, 1 // set EP0 to TX state
+
+ srl $9, $25, 16 // wValue & 0xff
+ andi $9, 0xff
+
+ sub $8, $9, 1
+ beqz $8, ___ep0_get_string_manufacture
+ sub $8, $9, 2
+ beqz $8, ___ep0_get_string_product
+ nop
+
+___ep0_get_string_lang_ids:
+ load_addr $20, string_lang_ids // data pointer
+ b _ep0_idle_state_fini
+ li $21, 4 // data length
+
+___ep0_get_string_manufacture:
+ load_addr $20, string_manufacture // data pointer
+ b _ep0_idle_state_fini
+ li $21, 16 // data length
+
+___ep0_get_string_product:
+ load_addr $20, string_product // data pointer
+ b _ep0_idle_state_fini
+ li $21, 46 // data length
+
+_ep0_idle_state_fini:
+ li $9, 0x40 // SVDOUTPKTRDY
+ beqz $23, _ep0_idle_state_fini2
+ nop
+ ori $9, $9, 0x08 // DATAEND
+_ep0_idle_state_fini2:
+ sb $9, 0x12($27) // CSR0
+ beqz $22, check_intr_ep1in
+ nop
+
+ //--------------------------------------------------------------
+ // 2.2 Handle EP0 TX state interrupt
+ //--------------------------------------------------------------
+ep0_tx_state:
+ sub $9, $22, 1
+ bnez $9, check_intr_ep1in
+ nop
+
+ sub $9, $21, 64 // max packetsize
+ blez $9, _ep0_tx_state2 // data count <= 64
+ ori $19, $21, 0
+ li $19, 64
+
+_ep0_tx_state2:
+ beqz $19, _ep0_tx_state3 // send ZLP
+ ori $18, $19, 0 // record bytes to be transferred
+ sub $21, $21, $19 // decrement data count
+
+_ep0_fifo_write_loop:
+ lbu $9, 0($20) // read data
+ sb $9, 0x20($27) // load FIFO
+ sub $19, $19, 1 // decrement counter
+ bnez $19, _ep0_fifo_write_loop
+ addi $20, $20, 1 // increment data pointer
+
+ sub $9, $18, 64 // max packetsize
+ beqz $9, _ep0_tx_state4
+ nop
+
+_ep0_tx_state3:
+ // transferred bytes < max packetsize
+ li $9, 0x0a // set INPKTRDY and DATAEND
+ sb $9, 0x12($27) // CSR0
+ li $22, 0 // set EP0 to IDLE state
+ b check_intr_ep1in
+ nop
+
+_ep0_tx_state4:
+ // transferred bytes == max packetsize
+ li $9, 0x02 // set INPKTRDY
+ sb $9, 0x12($27) // CSR0
+ b check_intr_ep1in
+ nop
+
+ //--------------------------------------------------------------
+ // 3. Check and handle EP1 BULK-IN interrupt
+ //--------------------------------------------------------------
+check_intr_ep1in:
+ andi $9, $10, 0x2 // check EP1 IN interrupt
+ beqz $9, check_intr_ep1out
+ nop
+
+handle_epin1_intr:
+ li $9, 1
+ sb $9, 0x0e($27) // set INDEX 1
+ lbu $9, 0x12($27) // read INCSR
+
+ andi $8, $9, 0x2 // check INCSR_FFNOTEMPT
+ bnez $8, _epin1_tx_state4
+ nop
+
+_epin1_write_fifo:
+ lhu $9, 0x10($27) // get INMAXP
+ sub $8, $21, $9
+ blez $8, _epin1_tx_state1 // bytes left <= INMAXP
+ ori $19, $21, 0
+ ori $19, $9, 0
+
+_epin1_tx_state1:
+ beqz $19, _epin1_tx_state4 // No data
+ nop
+
+ sub $21, $21, $19 // decrement data count
+
+ srl $5, $19, 2 // # of word
+ andi $6, $19, 0x3 // # of byte
+ beqz $5, _epin1_tx_state2
+ nop
+
+_epin1_fifo_write_word:
+ lw $9, 0($20) // read data from source address
+ sw $9, 0x24($27) // write FIFO
+ sub $5, $5, 1 // decrement counter
+ bnez $5, _epin1_fifo_write_word
+ addiu $20, $20, 4 // increment dest address
+
+_epin1_tx_state2:
+ beqz $6, _epin1_tx_state3
+ nop
+
+_epin1_fifo_write_byte:
+ lbu $9, 0($20) // read data from source address
+ sb $9, 0x24($27) // write FIFO
+ sub $6, $6, 1 // decrement counter
+ bnez $6, _epin1_fifo_write_byte
+ addiu $20, $20, 1 // increment dest address
+
+_epin1_tx_state3:
+ li $9, 0x1
+ sb $9, 0x12($27) // INCSR, set INPKTRDY
+
+_epin1_tx_state4:
+ // nop
+
+ //--------------------------------------------------------------
+ // 4. Check and handle EP1 BULK-OUT interrupt
+ //--------------------------------------------------------------
+check_intr_ep1out:
+ lhu $9, 0x04($27) // read INTROUT
+ andi $9, 0x2
+ beqz $9, check_status_next
+ nop
+
+handle_epout1_intr:
+ li $9, 1
+ sb $9, 0x0e($27) // set INDEX 1
+
+ lbu $9, 0x16($27) // read OUTCSR
+ andi $9, 0x1 // check OUTPKTRDY
+ beqz $9, check_status_next
+ nop
+
+_epout1_read_fifo:
+ lhu $19, 0x18($27) // read OUTCOUNT
+ srl $5, $19, 2 // # of word
+ andi $6, $19, 0x3 // # of byte
+ beqz $5, _epout1_rx_state1
+ nop
+
+_epout1_fifo_read_word:
+ lw $9, 0x24($27) // read FIFO
+ sw $9, 0($20) // store to dest address
+ sub $5, $5, 1 // decrement counter
+ bnez $5, _epout1_fifo_read_word
+ addiu $20, $20, 4 // increment dest address
+
+_epout1_rx_state1:
+ beqz $6, _epout1_rx_state2
+ nop
+
+_epout1_fifo_read_byte:
+ lbu $9, 0x24($27) // read FIFO
+ sb $9, 0($20) // store to dest address
+ sub $6, $6, 1 // decrement counter
+ bnez $6, _epout1_fifo_read_byte
+ addiu $20, $20, 1 // increment dest address
+
+_epout1_rx_state2:
+ sb $0, 0x16($27) // clear OUTPKTRDY
+
+check_status_next:
+ b usb_command_loop
+ nop
+
+//--------------------------------------------------------------
+// Device/Configuration/Interface/Endpoint/String Descriptors
+//--------------------------------------------------------------
+
+ .align 2
+device_desc:
+ .byte 0x12 // bLength
+ .byte 0x01 // bDescriptorType
+ .byte 0x00 // bcdUSB
+ .byte 0x02 // bcdUSB
+ .byte 0x00 // bDeviceClass
+ .byte 0x00 // bDeviceSubClass
+ .byte 0x00 // bDeviceProtocol
+ .byte 0x40 // bMaxPacketSize0
+ .byte 0x1a // idVendor
+ .byte 0x60 // idVendor
+ .byte 0x40 // idProduct
+ .byte 0x47 // idProduct
+ .byte 0x00 // bcdDevice
+ .byte 0x01 // bcdDevice
+ .byte 0x01 // iManufacturer
+ .byte 0x02 // iProduct
+ .byte 0x00 // iSerialNumber
+ .byte 0x01 // bNumConfigurations
+
+ .align 2
+dev_qualifier:
+ .byte 0x0a // bLength
+ .byte 0x06 // bDescriptorType
+ .byte 0x00 // bcdUSB
+ .byte 0x02 // bcdUSB
+ .byte 0x00 // bDeviceClass
+ .byte 0x00 // bDeviceSubClass
+ .byte 0x00 // bDeviceProtocol
+ .byte 0x40 // bMaxPacketSize0
+ .byte 0x01 // bNumConfigurations
+ .byte 0x00 // bRESERVED
+
+ .align 2
+config_desc_hs:
+ .byte 0x09 // bLength
+ .byte 0x02 // bDescriptorType
+ .byte 0x20 // wTotalLength
+ .byte 0x00 // wTotalLength
+ .byte 0x01 // bNumInterfaces
+ .byte 0x01 // bConfigurationValue
+ .byte 0x00 // iConfiguration
+ .byte 0xc0 // bmAttributes
+ .byte 0x01 // MaxPower
+intf_desc_hs:
+ .byte 0x09 // bLength
+ .byte 0x04 // bDescriptorType
+ .byte 0x00 // bInterfaceNumber
+ .byte 0x00 // bAlternateSetting
+ .byte 0x02 // bNumEndpoints
+ .byte 0xff // bInterfaceClass
+ .byte 0x00 // bInterfaceSubClass
+ .byte 0x50 // bInterfaceProtocol
+ .byte 0x00 // iInterface
+ep1_desc_hs:
+ .byte 0x07 // bLength
+ .byte 0x05 // bDescriptorType
+ .byte 0x01 // bEndpointAddress
+ .byte 0x02 // bmAttributes
+ .byte 0x00 // wMaxPacketSize
+ .byte 0x02 // wMaxPacketSize
+ .byte 0x00 // bInterval
+ep2_desc_hs:
+ .byte 0x07 // bLength
+ .byte 0x05 // bDescriptorType
+ .byte 0x81 // bEndpointAddress
+ .byte 0x02 // bmAttributes
+ .byte 0x00 // wMaxPacketSize
+ .byte 0x02 // wMaxPacketSize
+ .byte 0x00 // bInterval
+
+ .align 2
+config_desc_fs:
+ .byte 0x09 // bLength
+ .byte 0x02 // bDescriptorType
+ .byte 0x20 // wTotalLength
+ .byte 0x00 // wTotalLength
+ .byte 0x01 // bNumInterfaces
+ .byte 0x01 // bConfigurationValue
+ .byte 0x00 // iConfiguration
+ .byte 0xc0 // bmAttributes
+ .byte 0x01 // MaxPower
+intf_desc_fs:
+ .byte 0x09 // bLength
+ .byte 0x04 // bDescriptorType
+ .byte 0x00 // bInterfaceNumber
+ .byte 0x00 // bAlternateSetting
+ .byte 0x02 // bNumEndpoints
+ .byte 0xff // bInterfaceClass
+ .byte 0x00 // bInterfaceSubClass
+ .byte 0x50 // bInterfaceProtocol
+ .byte 0x00 // iInterface
+ep1_desc_fs:
+ .byte 0x07 // bLength
+ .byte 0x05 // bDescriptorType
+ .byte 0x01 // bEndpointAddress
+ .byte 0x02 // bmAttributes
+ .byte 0x40 // wMaxPacketSize
+ .byte 0x00 // wMaxPacketSize
+ .byte 0x00 // bInterval
+ep2_desc_fs:
+ .byte 0x07 // bLength
+ .byte 0x05 // bDescriptorType
+ .byte 0x81 // bEndpointAddress
+ .byte 0x02 // bmAttributes
+ .byte 0x40 // wMaxPacketSize
+ .byte 0x00 // wMaxPacketSize
+ .byte 0x00 // bInterval
+
+ .align 2
+string_lang_ids:
+ .byte 0x04
+ .byte 0x03
+ .byte 0x09
+ .byte 0x04
+
+ .align 2
+string_manufacture:
+ .byte 0x10
+ .byte 0x03
+ .byte 0x49
+ .byte 0x00
+ .byte 0x6e
+ .byte 0x00
+ .byte 0x67
+ .byte 0x00
+ .byte 0x65
+ .byte 0x00
+ .byte 0x6e
+ .byte 0x00
+ .byte 0x69
+ .byte 0x00
+ .byte 0x63
+ .byte 0x00
+
+ .align 2
+string_product:
+ .byte 0x2e
+ .byte 0x03
+ .byte 0x4a
+ .byte 0x00
+ .byte 0x5a
+ .byte 0x00
+ .byte 0x34
+ .byte 0x00
+ .byte 0x37
+ .byte 0x00
+ .byte 0x34
+ .byte 0x00
+ .byte 0x30
+ .byte 0x00
+ .byte 0x20
+ .byte 0x00
+ .byte 0x55
+ .byte 0x00
+ .byte 0x53
+ .byte 0x00
+ .byte 0x42
+ .byte 0x00
+ .byte 0x20
+ .byte 0x00
+ .byte 0x42
+ .byte 0x00
+ .byte 0x6f
+ .byte 0x00
+ .byte 0x6f
+ .byte 0x00
+ .byte 0x74
+ .byte 0x00
+ .byte 0x20
+ .byte 0x00
+ .byte 0x44
+ .byte 0x00
+ .byte 0x65
+ .byte 0x00
+ .byte 0x76
+ .byte 0x00
+ .byte 0x69
+ .byte 0x00
+ .byte 0x63
+ .byte 0x00
+ .byte 0x65
+ .byte 0x00
+
+ .align 2
+cpu_info_data:
+ .byte 0x4a
+ .byte 0x5a
+ .byte 0x34
+ .byte 0x37
+ .byte 0x34
+ .byte 0x30
+ .byte 0x56
+ .byte 0x31
+usbboot_end:
+
+ .set reorder
diff --git a/drivers/mtd/nand/jz4740_nand.c b/drivers/mtd/nand/jz4740_nand.c
index 3ec34f3..4ab2229 100644
--- a/drivers/mtd/nand/jz4740_nand.c
+++ b/drivers/mtd/nand/jz4740_nand.c
@@ -15,6 +15,9 @@
#include <asm/io.h>
#include <asm/jz4740.h>
+#ifdef CONFIG_SPL_BUILD
+#define printf(arg...) do {} while (0)
+#endif
#define JZ_NAND_DATA_ADDR ((void __iomem *)0xB8000000)
#define JZ_NAND_CMD_ADDR (JZ_NAND_DATA_ADDR + 0x8000)
#define JZ_NAND_ADDR_ADDR (JZ_NAND_DATA_ADDR + 0x10000)
@@ -176,7 +179,7 @@ static int jz_nand_rs_correct_data(struct mtd_info *mtd, u_char *dat,
for (k = 0; k < 9; k++)
writeb(read_ecc[k], &emc->nfpar[k]);
}
- /* Set PRDY */
+
writel(readl(&emc->nfecr) | EMC_NFECR_PRDY, &emc->nfecr);
/* Wait for completion */
@@ -184,7 +187,7 @@ static int jz_nand_rs_correct_data(struct mtd_info *mtd, u_char *dat,
status = readl(&emc->nfints);
} while (!(status & EMC_NFINTS_DECF));
- /* disable ecc */
+ /* Disable ECC */
writel(readl(&emc->nfecr) & ~EMC_NFECR_ECCE, &emc->nfecr);
/* Check decoding */
@@ -192,7 +195,7 @@ static int jz_nand_rs_correct_data(struct mtd_info *mtd, u_char *dat,
return 0;
if (status & EMC_NFINTS_UNCOR) {
- printf("uncorrectable ecc\n");
+ printf("JZ4740 uncorrectable ECC\n");
return -1;
}
@@ -230,6 +233,32 @@ static int jz_nand_rs_correct_data(struct mtd_info *mtd, u_char *dat,
return errcnt;
}
+#ifdef CONFIG_SPL_BUILD
+static void jz_nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
+{
+ int i;
+ struct nand_chip *this = mtd->priv;
+
+#if (JZ4740_NANDBOOT_CFG == JZ4740_NANDBOOT_B16R3) || \
+ (JZ4740_NANDBOOT_CFG == JZ4740_NANDBOOT_B16R2)
+ for (i = 0; i < len; i += 2)
+ buf[i] = readw(this->IO_ADDR_R);
+#elif (JZ4740_NANDBOOT_CFG == JZ4740_NANDBOOT_B8R3) || \
+ (JZ4740_NANDBOOT_CFG == JZ4740_NANDBOOT_B8R2)
+ for (i = 0; i < len; i++)
+ buf[i] = readb(this->IO_ADDR_R);
+#else
+ #error JZ4740_NANDBOOT_CFG not defined or wrong
+#endif
+}
+
+static uint8_t jz_nand_read_byte(struct mtd_info *mtd)
+{
+ struct nand_chip *this = mtd->priv;
+ return readb(this->IO_ADDR_R);
+}
+#endif
+
/*
* Main initialization routine
*/
@@ -254,6 +283,10 @@ int board_nand_init(struct nand_chip *nand)
nand->ecc.size = CONFIG_SYS_NAND_ECCSIZE;
nand->ecc.bytes = CONFIG_SYS_NAND_ECCBYTES;
nand->ecc.layout = &qi_lb60_ecclayout_2gb;
+#ifdef CONFIG_SPL_BUILD
+ nand->read_byte = jz_nand_read_byte;
+ nand->read_buf = jz_nand_read_buf;
+#endif
nand->chip_delay = 50;
nand->options = NAND_USE_FLASH_BBT;
diff --git a/include/configs/qi_lb60.h b/include/configs/qi_lb60.h
index 4bb5bbc..d4449ac 100644
--- a/include/configs/qi_lb60.h
+++ b/include/configs/qi_lb60.h
@@ -1,5 +1,5 @@
/*
- * Authors: Xiangfu Liu <xiangfu.z@gmail.com>
+ * Authors: Xiangfu Liu <xiangfu@openmobilefree.net>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
@@ -14,7 +14,6 @@
#define CONFIG_SYS_LITTLE_ENDIAN
#define CONFIG_JZSOC /* Jz SoC */
#define CONFIG_JZ4740 /* Jz4740 SoC */
-#define CONFIG_NAND_JZ4740
#define CONFIG_SYS_CPU_SPEED 336000000 /* CPU clock: 336 MHz */
#define CONFIG_SYS_EXTAL 12000000 /* EXTAL freq: 12 MHz */
@@ -24,24 +23,43 @@
#define CONFIG_SYS_UART_BASE JZ4740_UART0_BASE /* Base of the UART channel */
#define CONFIG_BAUDRATE 57600
+#define CONFIG_BOOTP_MASK (CONFIG_BOOTP_DEFAUL)
+#define CONFIG_BOOTDELAY 0
+#define CONFIG_BOOTARGS "mem=32M console=tty0 console=ttyS0,57600n8 ubi.mtd=2 rootfstype=ubifs root=ubi0:rootfs rw rootwait"
+#define CONFIG_BOOTCOMMAND "nand read 0x80600000 0x400000 0x280000;bootm"
+
+/*
+ * Miscellaneous configurable options
+ */
+#define CONFIG_SYS_SDRAM_BASE 0x80000000 /* Cached addr */
+#define CONFIG_SYS_INIT_SP_OFFSET 0x400000
+#define CONFIG_SYS_LOAD_ADDR 0x80600000
+#define CONFIG_SYS_MEMTEST_START 0x80100000
+#define CONFIG_SYS_MEMTEST_END 0x80A00000
+#define CONFIG_SYS_TEXT_BASE 0x80100000
+#define CONFIG_SYS_MONITOR_BASE CONFIG_SYS_TEXT_BASE
+
+#define CONFIG_SYS_MALLOC_LEN (4 * 1024 * 1024)
+#define CONFIG_SYS_BOOTPARAMS_LEN (128 * 1024)
+
+#define CONFIG_SYS_CBSIZE 256 /* Console I/O Buffer Size */
+#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE + sizeof(CONFIG_SYS_PROMPT) + 16)
+
+#define CONFIG_SYS_LONGHELP
+#define CONFIG_SYS_MAXARGS 16
+#define CONFIG_SYS_PROMPT "NanoNote# "
+
#define CONFIG_SKIP_LOWLEVEL_INIT
#define CONFIG_BOARD_EARLY_INIT_F
#define CONFIG_SYS_NO_FLASH
#define CONFIG_SYS_FLASH_BASE 0 /* init flash_base as 0 */
-#define CONFIG_ENV_OVERWRITE
-
-#define CONFIG_BOOTP_MASK (CONFIG_BOOTP_DEFAUL)
-#define CONFIG_BOOTDELAY 0
-#define CONFIG_BOOTARGS "mem=32M console=tty0 console=ttyS0,57600n8 ubi.mtd=2 rootfstype=ubifs root=ubi0:rootfs rw rootwait"
-#define CONFIG_BOOTCOMMAND "nand read 0x80600000 0x400000 0x200000;bootm"
/*
- * Command line configuration.
+ * Command line configuration
*/
#define CONFIG_CMD_BOOTD /* bootd */
#define CONFIG_CMD_CONSOLE /* coninfo */
#define CONFIG_CMD_ECHO /* echo arguments */
-
#define CONFIG_CMD_LOADB /* loadb */
#define CONFIG_CMD_LOADS /* loads */
#define CONFIG_CMD_MEMORY /* md mm nm mw cp cmp crc base loop mtest */
@@ -58,45 +76,16 @@
#define CONFIG_LOADS_ECHO 1 /* echo on for serial download */
/*
- * Miscellaneous configurable options
- */
-#define CONFIG_SYS_MAXARGS 16
-#define CONFIG_SYS_LONGHELP
-#define CONFIG_SYS_PROMPT "NanoNote# "
-#define CONFIG_SYS_CBSIZE 256 /* Console I/O Buffer Size */
-#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE + sizeof(CONFIG_SYS_PROMPT) + 16)
-
-#define CONFIG_SYS_MALLOC_LEN (4 * 1024 * 1024)
-#define CONFIG_SYS_BOOTPARAMS_LEN (128 * 1024)
-
-#define CONFIG_SYS_SDRAM_BASE 0x80000000 /* Cached addr */
-#define CONFIG_SYS_INIT_SP_OFFSET 0x400000
-#define CONFIG_SYS_LOAD_ADDR 0x80600000
-#define CONFIG_SYS_MEMTEST_START 0x80100000
-#define CONFIG_SYS_MEMTEST_END 0x80800000
-
-/*
- * Environment
+ * NAND driver configuration
*/
-#define CONFIG_ENV_IS_IN_NAND /* use NAND for environment vars */
-
-#define CONFIG_SYS_NAND_5_ADDR_CYCLE
-/*
- * if board nand flash is 1GB, set to 1
- * if board nand flash is 2GB, set to 2
- * for change the PAGE_SIZE and BLOCK_SIZE
- * will delete when there is no 1GB flash
- */
-#define NANONOTE_NAND_SIZE 2
-
-#define CONFIG_SYS_NAND_PAGE_SIZE (2048 * NANONOTE_NAND_SIZE)
-#define CONFIG_SYS_NAND_BLOCK_SIZE (256 * NANONOTE_NAND_SIZE << 10)
-/* nand bad block was marked at this page in a block, start from 0 */
+#define CONFIG_NAND_JZ4740
+#define CONFIG_SYS_NAND_PAGE_SIZE 4096
+#define CONFIG_SYS_NAND_BLOCK_SIZE (512 << 10)
+/* NAND bad block was marked at this page in a block, start from 0 */
#define CONFIG_SYS_NAND_BADBLOCK_PAGE 127
#define CONFIG_SYS_NAND_PAGE_COUNT 128
#define CONFIG_SYS_NAND_BAD_BLOCK_POS 0
-/* ECC offset position in oob area, default value is 6 if it isn't defined */
-#define CONFIG_SYS_NAND_ECC_POS (6 * NANONOTE_NAND_SIZE)
+#define CONFIG_SYS_NAND_ECC_POS 12
#define CONFIG_SYS_NAND_ECCSIZE 512
#define CONFIG_SYS_NAND_ECCBYTES 9
#define CONFIG_SYS_NAND_ECCPOS \
@@ -115,10 +104,9 @@
#define CONFIG_SYS_ONENAND_BASE CONFIG_SYS_NAND_BASE
#define CONFIG_SYS_MAX_NAND_DEVICE 1
#define CONFIG_SYS_NAND_SELECT_DEVICE 1 /* nand driver supports mutipl.*/
-#define CONFIG_NAND_SPL_TEXT_BASE 0x80000000
/*
- * IPL (Initial Program Loader, integrated inside CPU)
+ * IPL (Initial Program Loader, integrated inside Ingenic Xburst JZ4740 CPU)
* Will load first 8k from NAND (SPL) into cache and execute it from there.
*
* SPL (Secondary Program Loader)
@@ -130,77 +118,86 @@
* NUB (NAND U-Boot)
* This NAND U-Boot (NUB) is a special U-Boot version which can be started
* from RAM. Therefore it mustn't (re-)configure the SDRAM controller.
- *
*/
+
+/*
+ * NAND SPL configuration
+ */
+#define CONFIG_SPL
+#define CONFIG_SPL_NAND_LOAD
+#define CONFIG_SPL_NAND_SIMPLE
+#define CONFIG_SPL_NAND_SUPPORT
+#define CONFIG_SPL_TEXT_BASE 0x80000000
+#define CONFIG_SPL_START_S_PATH "arch/mips/cpu/xburst/spl"
+
+#define CONFIG_SYS_NAND_5_ADDR_CYCLE
+#define CONFIG_SYS_NAND_HW_ECC_OOBFIRST
+#define JZ4740_NANDBOOT_CFG JZ4740_NANDBOOT_B8R3
+
#define CONFIG_SYS_NAND_U_BOOT_DST 0x80100000 /* Load NUB to this addr */
#define CONFIG_SYS_NAND_U_BOOT_START CONFIG_SYS_NAND_U_BOOT_DST
-/* Start NUB from this addr*/
+ /* Start NUB from this addr */
+#define CONFIG_SYS_NAND_U_BOOT_OFFS (32 << 10) /* Offset of NUB */
+#define CONFIG_SYS_NAND_U_BOOT_SIZE (256 << 10) /* Size of NUB */
/*
- * Define the partitioning of the NAND chip (only RAM U-Boot is needed here)
+ * Environment configuration
*/
-#define CONFIG_SYS_NAND_U_BOOT_OFFS (256 << 10) /* Offset to RAM U-Boot image */
-#define CONFIG_SYS_NAND_U_BOOT_SIZE (512 << 10) /* Size of RAM U-Boot image */
-
+#define CONFIG_ENV_OVERWRITE
+#define CONFIG_ENV_IS_IN_NAND
#define CONFIG_ENV_SIZE (4 << 10)
#define CONFIG_ENV_OFFSET \
(CONFIG_SYS_NAND_BLOCK_SIZE + CONFIG_SYS_NAND_U_BOOT_SIZE)
#define CONFIG_ENV_OFFSET_REDUND \
(CONFIG_ENV_OFFSET + CONFIG_SYS_NAND_BLOCK_SIZE)
-#define CONFIG_SYS_TEXT_BASE 0x80100000
-#define CONFIG_SYS_MONITOR_BASE CONFIG_SYS_TEXT_BASE
-
/*
- * SDRAM Info.
+ * CPU cache configuration
*/
-#define CONFIG_NR_DRAM_BANKS 1
+#define CONFIG_SYS_DCACHE_SIZE 16384
+#define CONFIG_SYS_ICACHE_SIZE 16384
+#define CONFIG_SYS_CACHELINE_SIZE 32
/*
- * Cache Configuration
+ * SDRAM configuration
*/
-#define CONFIG_SYS_DCACHE_SIZE 16384
-#define CONFIG_SYS_ICACHE_SIZE 16384
-#define CONFIG_SYS_CACHELINE_SIZE 32
+#define CONFIG_NR_DRAM_BANKS 1
+
+#define SDRAM_BW16 1 /* Data bus width: 0-32bit, 1-16bit */
+#define SDRAM_BANK4 1 /* Banks each chip: 0-2bank, 1-4bank */
+#define SDRAM_ROW 13 /* Row address: 11 to 13 */
+#define SDRAM_COL 9 /* Column address: 8 to 12 */
+#define SDRAM_CASL 2 /* CAS latency: 2 or 3 */
+#define SDRAM_TRAS 45 /* RAS# Active Time */
+#define SDRAM_RCD 20 /* RAS# to CAS# Delay */
+#define SDRAM_TPC 20 /* RAS# Precharge Time */
+#define SDRAM_TRWL 7 /* Write Latency Time */
+#define SDRAM_TREF 15625 /* Refresh period: 8192 cycles/64ms */
/*
- * GPIO definition
+ * GPIO configuration
*/
-#define GPIO_LCD_CS (2 * 32 + 21)
-#define GPIO_AMP_EN (3 * 32 + 4)
+#define GPIO_LCD_CS (2 * 32 + 21)
+#define GPIO_AMP_EN (3 * 32 + 4)
-#define GPIO_SDPW_EN (3 * 32 + 2)
-#define GPIO_SD_DETECT (3 * 32 + 0)
+#define GPIO_SDPW_EN (3 * 32 + 2)
+#define GPIO_SD_DETECT (3 * 32 + 0)
-#define GPIO_BUZZ_PWM (3 * 32 + 27)
-#define GPIO_USB_DETECT (3 * 32 + 28)
+#define GPIO_BUZZ_PWM (3 * 32 + 27)
+#define GPIO_USB_DETECT (3 * 32 + 28)
-#define GPIO_AUDIO_POP (1 * 32 + 29)
-#define GPIO_COB_TEST (1 * 32 + 30)
+#define GPIO_AUDIO_POP (1 * 32 + 29)
+#define GPIO_COB_TEST (1 * 32 + 30)
#define GPIO_KEYOUT_BASE (2 * 32 + 10)
-#define GPIO_KEYIN_BASE (3 * 32 + 18)
-#define GPIO_KEYIN_8 (3 * 32 + 26)
+#define GPIO_KEYIN_BASE (3 * 32 + 18)
+#define GPIO_KEYIN_8 (3 * 32 + 26)
-#define GPIO_SD_CD_N GPIO_SD_DETECT /* SD Card insert detect */
+#define GPIO_SD_CD_N GPIO_SD_DETECT /* SD Card insert detect */
#define GPIO_SD_VCC_EN_N GPIO_SDPW_EN /* SD Card Power Enable */
#define SPEN GPIO_LCD_CS /* LCDCS :Serial command enable */
#define SPDA (2 * 32 + 22) /* LCDSCL:Serial command clock input */
#define SPCK (2 * 32 + 23) /* LCDSDA:Serial command data input */
-/* SDRAM paramters */
-#define SDRAM_BW16 1 /* Data bus width: 0-32bit, 1-16bit */
-#define SDRAM_BANK4 1 /* Banks each chip: 0-2bank, 1-4bank */
-#define SDRAM_ROW 13 /* Row address: 11 to 13 */
-#define SDRAM_COL 9 /* Column address: 8 to 12 */
-#define SDRAM_CASL 2 /* CAS latency: 2 or 3 */
-
-/* SDRAM Timings, unit: ns */
-#define SDRAM_TRAS 45 /* RAS# Active Time */
-#define SDRAM_RCD 20 /* RAS# to CAS# Delay */
-#define SDRAM_TPC 20 /* RAS# Precharge Time */
-#define SDRAM_TRWL 7 /* Write Latency Time */
-#define SDRAM_TREF 15625 /* Refresh period: 8192 cycles/64ms */
-
#endif
--
1.7.9.5
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