SPEAr : Support added for SPEAr600 board
SPEAr600 SoC support contains basic spear600 support along with the
usage of following drivers
- serial driver(UART)
- i2c driver
- smi driver
- nand driver(FSMC)
- usbd driver
Signed-off-by: Vipin <vipin.kumar@st.com>
diff --git a/board/spear/common/Makefile b/board/spear/common/Makefile
new file mode 100644
index 0000000..4f8959f
--- /dev/null
+++ b/board/spear/common/Makefile
@@ -0,0 +1,54 @@
+#
+# (C) Copyright 2006
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+# MA 02111-1307 USA
+#
+
+include $(TOPDIR)/config.mk
+
+ifneq ($(OBJTREE),$(SRCTREE))
+$(shell mkdir -p $(obj)board/$(VENDOR)/common)
+endif
+
+LIB = $(obj)lib$(VENDOR).a
+
+COBJS := spr_misc.o
+SOBJS := spr_lowlevel_init.o
+
+SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c)
+OBJS := $(addprefix $(obj),$(COBJS))
+SOBJS := $(addprefix $(obj),$(SOBJS))
+
+$(LIB): $(obj).depend $(OBJS) $(SOBJS)
+ $(AR) $(ARFLAGS) $@ $(OBJS) $(SOBJS)
+
+clean:
+ rm -f $(SOBJS) $(OBJS)
+
+distclean: clean
+ rm -f $(LIB) core *.bak $(obj).depend
+
+#########################################################################
+# This is for $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/board/spear/common/spr_lowlevel_init.S b/board/spear/common/spr_lowlevel_init.S
new file mode 100755
index 0000000..6fbe579
--- /dev/null
+++ b/board/spear/common/spr_lowlevel_init.S
@@ -0,0 +1,195 @@
+/*
+ * (C) Copyright 2006
+ * Vipin Kumar, ST Micoelectronics, vipin.kumar@st.com.
+ *
+ * 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>
+
+/*
+ * platform specific initializations are already done in Xloader
+ * Initializations already done include
+ * DDR, PLLs, IP's clock enable and reset release etc
+ */
+.globl lowlevel_init
+lowlevel_init:
+ /* By default, U-Boot switches CPU to low-vector */
+ /* Revert this as we work in high vector even in U-Boot */
+ mrc p15, 0, r0, c1, c0, 0
+ orr r0, r0, #0x00002000
+ mcr p15, 0, r0, c1, c0, 0
+ mov pc, lr
+
+/* void setfreq(unsigned int device, unsigned int frequency) */
+.global setfreq
+setfreq:
+ stmfd sp!,{r14}
+ stmfd sp!,{r0-r12}
+
+ mov r8,sp
+ ldr sp,SRAM_STACK_V
+
+ /* Saving the function arguements for later use */
+ mov r4,r0
+ mov r5,r1
+
+ /* Putting DDR into self refresh */
+ ldr r0,DDR_07_V
+ ldr r1,[r0]
+ ldr r2,DDR_ACTIVE_V
+ bic r1, r1, r2
+ str r1,[r0]
+ ldr r0,DDR_57_V
+ ldr r1,[r0]
+ ldr r2,CYCLES_MASK_V
+ bic r1, r1, r2
+ ldr r2,REFRESH_CYCLES_V
+ orr r1, r1, r2, lsl #16
+ str r1,[r0]
+ ldr r0,DDR_07_V
+ ldr r1,[r0]
+ ldr r2,SREFRESH_MASK_V
+ orr r1, r1, r2
+ str r1,[r0]
+
+ /* flush pipeline */
+ b flush
+ .align 5
+flush:
+ /* Delay to ensure self refresh mode */
+ ldr r0,SREFRESH_DELAY_V
+delay:
+ sub r0,r0,#1
+ cmp r0,#0
+ bne delay
+
+ /* Putting system in slow mode */
+ ldr r0,SCCTRL_V
+ mov r1,#2
+ str r1,[r0]
+
+ /* Changing PLL(1/2) frequency */
+ mov r0,r4
+ mov r1,r5
+
+ cmp r4,#0
+ beq pll1_freq
+
+ /* Change PLL2 (DDR frequency) */
+ ldr r6,PLL2_FREQ_V
+ ldr r7,PLL2_CNTL_V
+ b pll2_freq
+
+pll1_freq:
+ /* Change PLL1 (CPU frequency) */
+ ldr r6,PLL1_FREQ_V
+ ldr r7,PLL1_CNTL_V
+
+pll2_freq:
+ mov r0,r6
+ ldr r1,[r0]
+ ldr r2,PLLFREQ_MASK_V
+ bic r1,r1,r2
+ mov r2,r5,lsr#1
+ orr r1,r1,r2,lsl#24
+ str r1,[r0]
+
+ mov r0,r7
+ ldr r1,P1C0A_V
+ str r1,[r0]
+ ldr r1,P1C0E_V
+ str r1,[r0]
+ ldr r1,P1C06_V
+ str r1,[r0]
+ ldr r1,P1C0E_V
+ str r1,[r0]
+
+lock:
+ ldr r1,[r0]
+ and r1,r1,#1
+ cmp r1,#0
+ beq lock
+
+ /* Putting system back to normal mode */
+ ldr r0,SCCTRL_V
+ mov r1,#4
+ str r1,[r0]
+
+ /* Putting DDR back to normal */
+ ldr r0,DDR_07_V
+ ldr r1,[R0]
+ ldr r2,SREFRESH_MASK_V
+ bic r1, r1, r2
+ str r1,[r0]
+ ldr r2,DDR_ACTIVE_V
+ orr r1, r1, r2
+ str r1,[r0]
+
+ /* Delay to ensure self refresh mode */
+ ldr r0,SREFRESH_DELAY_V
+1:
+ sub r0,r0,#1
+ cmp r0,#0
+ bne 1b
+
+ mov sp,r8
+ /* Resuming back to code */
+ ldmia sp!,{r0-r12}
+ ldmia sp!,{pc}
+
+SCCTRL_V:
+ .word 0xfca00000
+PLL1_FREQ_V:
+ .word 0xfca8000C
+PLL1_CNTL_V:
+ .word 0xfca80008
+PLL2_FREQ_V:
+ .word 0xfca80018
+PLL2_CNTL_V:
+ .word 0xfca80014
+PLLFREQ_MASK_V:
+ .word 0xff000000
+P1C0A_V:
+ .word 0x1C0A
+P1C0E_V:
+ .word 0x1C0E
+P1C06_V:
+ .word 0x1C06
+
+SREFRESH_DELAY_V:
+ .word 0x9999
+SRAM_STACK_V:
+ .word 0xD2800600
+DDR_07_V:
+ .word 0xfc60001c
+DDR_ACTIVE_V:
+ .word 0x01000000
+DDR_57_V:
+ .word 0xfc6000e4
+CYCLES_MASK_V:
+ .word 0xffff0000
+REFRESH_CYCLES_V:
+ .word 0xf0f0
+SREFRESH_MASK_V:
+ .word 0x00010000
+
+.global setfreq_sz
+setfreq_sz:
+ .word setfreq_sz - setfreq
diff --git a/board/spear/common/spr_misc.c b/board/spear/common/spr_misc.c
new file mode 100755
index 0000000..dfa3ece
--- /dev/null
+++ b/board/spear/common/spr_misc.c
@@ -0,0 +1,171 @@
+/*
+ * (C) Copyright 2009
+ * Vipin Kumar, ST Micoelectronics, vipin.kumar@st.com.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <command.h>
+#include <i2c.h>
+#include <net.h>
+#include <asm/io.h>
+#include <asm/arch/hardware.h>
+#include <asm/arch/spr_xloader_table.h>
+#include <asm/arch/spr_defs.h>
+
+#define CPU 0
+#define DDR 1
+#define SRAM_REL 0xD2801000
+
+DECLARE_GLOBAL_DATA_PTR;
+static struct chip_data chip_data;
+
+int dram_init(void)
+{
+ struct xloader_table *xloader_tb =
+ (struct xloader_table *)XLOADER_TABLE_ADDRESS;
+ struct xloader_table_1_1 *table_1_1;
+ struct xloader_table_1_2 *table_1_2;
+ struct chip_data *chip = &chip_data;
+
+ gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
+ gd->bd->bi_dram[0].size = get_ram_size(PHYS_SDRAM_1,
+ PHYS_SDRAM_1_MAXSIZE);
+
+ if (XLOADER_TABLE_VERSION_1_1 == xloader_tb->table_version) {
+ table_1_1 = &xloader_tb->table.table_1_1;
+ chip->dramfreq = table_1_1->ddrfreq;
+ chip->dramtype = table_1_1->ddrtype;
+
+ } else if (XLOADER_TABLE_VERSION_1_2 == xloader_tb->table_version) {
+ table_1_2 = &xloader_tb->table.table_1_2;
+ chip->dramfreq = table_1_2->ddrfreq;
+ chip->dramtype = table_1_2->ddrtype;
+ } else {
+ chip->dramfreq = -1;
+ }
+
+ return 0;
+}
+
+int misc_init_r(void)
+{
+ setenv("verify", "n");
+
+#if defined(CONFIG_SPEAR_USBTTY)
+ setenv("stdin", "usbtty");
+ setenv("stdout", "usbtty");
+ setenv("stderr", "usbtty");
+#endif
+ return 0;
+}
+
+int spear_board_init(ulong mach_type)
+{
+ struct xloader_table *xloader_tb =
+ (struct xloader_table *)XLOADER_TABLE_ADDRESS;
+ struct xloader_table_1_2 *table_1_2;
+ struct chip_data *chip = &chip_data;
+
+ gd->bd->bi_arch_number = mach_type;
+
+ /* adress of boot parameters */
+ gd->bd->bi_boot_params = CONFIG_BOOT_PARAMS_ADDR;
+
+ /* CPU is initialized to work at 333MHz in Xloader */
+ chip->cpufreq = 333;
+
+ if (XLOADER_TABLE_VERSION_1_2 == xloader_tb->table_version) {
+ table_1_2 = &xloader_tb->table.table_1_2;
+ memcpy(chip->version, table_1_2->version,
+ sizeof(chip->version));
+ }
+
+ return 0;
+}
+
+int do_chip_config(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+ void (*sram_setfreq) (unsigned int, unsigned int);
+ struct chip_data *chip = &chip_data;
+ unsigned char mac[6];
+ unsigned int frequency;
+
+ if ((argc > 3) || (argc < 2)) {
+ cmd_usage(cmdtp);
+ return 1;
+ }
+
+ if ((!strcmp(argv[1], "cpufreq")) || (!strcmp(argv[1], "ddrfreq"))) {
+
+ frequency = simple_strtoul(argv[2], NULL, 0);
+
+ if (frequency > 333) {
+ printf("Frequency is limited to 333MHz\n");
+ return 1;
+ }
+
+ sram_setfreq = memcpy((void *)SRAM_REL, setfreq, setfreq_sz);
+
+ if (!strcmp(argv[1], "cpufreq")) {
+ sram_setfreq(CPU, frequency);
+ printf("CPU frequency changed to %u\n", frequency);
+
+ chip->cpufreq = frequency;
+ } else {
+ sram_setfreq(DDR, frequency);
+ printf("DDR frequency changed to %u\n", frequency);
+
+ chip->dramfreq = frequency;
+ }
+
+ return 0;
+ } else if (!strcmp(argv[1], "print")) {
+
+ if (chip->cpufreq == -1)
+ printf("CPU Freq = Not Known\n");
+ else
+ printf("CPU Freq = %d MHz\n", chip->cpufreq);
+
+ if (chip->dramfreq == -1)
+ printf("DDR Freq = Not Known\n");
+ else
+ printf("DDR Freq = %d MHz\n", chip->dramfreq);
+
+ if (chip->dramtype == DDRMOBILE)
+ printf("DDR Type = MOBILE\n");
+ else if (chip->dramtype == DDR2)
+ printf("DDR Type = DDR2\n");
+ else
+ printf("DDR Type = Not Known\n");
+
+ printf("Xloader Rev = %s\n", chip->version);
+
+ return 0;
+ }
+
+ cmd_usage(cmdtp);
+ return 1;
+}
+
+U_BOOT_CMD(chip_config, 3, 1, do_chip_config,
+ "configure chip",
+ "chip_config cpufreq/ddrfreq frequency\n"
+ "chip_config print");
diff --git a/board/spear/spear600/Makefile b/board/spear/spear600/Makefile
new file mode 100755
index 0000000..1978002
--- /dev/null
+++ b/board/spear/spear600/Makefile
@@ -0,0 +1,51 @@
+#
+# (C) Copyright 2000-2004
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+# MA 02111-1307 USA
+#
+
+include $(TOPDIR)/config.mk
+
+LIB = $(obj)lib$(BOARD).a
+
+COBJS := spear600.o
+SOBJS :=
+
+SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c)
+OBJS := $(addprefix $(obj),$(COBJS))
+SOBJS := $(addprefix $(obj),$(SOBJS))
+
+$(LIB): $(obj).depend $(OBJS) $(SOBJS)
+ $(AR) $(ARFLAGS) $@ $(OBJS) $(SOBJS)
+
+clean:
+ rm -f $(SOBJS) $(OBJS)
+
+distclean: clean
+ rm -f $(LIB) core *.bak $(obj).depend
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/board/spear/spear600/config.mk b/board/spear/spear600/config.mk
new file mode 100755
index 0000000..35646f2
--- /dev/null
+++ b/board/spear/spear600/config.mk
@@ -0,0 +1,39 @@
+#
+# (C) Copyright 2009
+# Vipin Kumar, ST Microelectronics <vipin.kumar@st.com>
+#
+# 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
+#
+
+#########################################################################
+
+TEXT_BASE = 0x00700000
+
+ALL += $(obj)u-boot.img
+
+# Environment variables in NAND
+ifeq ($(ENV),NAND)
+PLATFORM_RELFLAGS += -DCONFIG_ENV_IS_IN_NAND
+else
+PLATFORM_RELFLAGS += -DCONFIG_ENV_IS_IN_FLASH
+endif
+
+ifeq ($(CONSOLE),USB)
+PLATFORM_RELFLAGS += -DCONFIG_SPEAR_USBTTY
+endif
diff --git a/board/spear/spear600/spear600.c b/board/spear/spear600/spear600.c
new file mode 100755
index 0000000..eef9a37
--- /dev/null
+++ b/board/spear/spear600/spear600.c
@@ -0,0 +1,53 @@
+/*
+ * (C) Copyright 2009
+ * Vipin Kumar, ST Micoelectronics, vipin.kumar@st.com.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <nand.h>
+#include <asm/io.h>
+#include <asm/arch/hardware.h>
+#include <asm/arch/spr_defs.h>
+#include <asm/arch/spr_misc.h>
+#include <asm/arch/spr_nand.h>
+
+int board_init(void)
+{
+ return spear_board_init(MACH_TYPE_SPEAR600);
+}
+
+/*
+ * board_nand_init - Board specific NAND initialization
+ * @nand: mtd private chip structure
+ *
+ * Called by nand_init_chip to initialize the board specific functions
+ */
+
+int board_nand_init(struct nand_chip *nand)
+{
+ struct misc_regs *const misc_regs_p =
+ (struct misc_regs *)CONFIG_SPEAR_MISCBASE;
+
+ if (!(readl(&misc_regs_p->auto_cfg_reg) & MISC_NANDDIS))
+ return spear_nand_init(nand);
+
+ return -1;
+}