Update make target for ARM supported boards.

Use lowlevel_init() instead of platformsetup() [rename].
Patch by Peter Pearse, 06 Oct 2005

1 files changed, 396 insertions, 0 deletions

diff --git a/board/omap1510inn/lowlevel_init.S b/board/omap1510inn/lowlevel_init.S
new file mode 100644
index 0000000..1c68e5b
--- /dev/null
+++ b/board/omap1510inn/lowlevel_init.S
@@ -0,0 +1,396 @@
+/*
+ * Board specific setup info
+ *
+ * (C) Copyright 2003
+ * Texas Instruments, <www.ti.com>
+ *
+ * -- Some bits of code used from rrload's head_OMAP1510.s --
+ * Copyright (C) 2002 RidgeRun, Inc.
+ *
+ * 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>
+
+#if defined(CONFIG_OMAP1510)
+#include <./configs/omap1510.h>
+#endif
+
+#define OMAP1510_CLKS ((1<<EN_XORPCK)|(1<<EN_PERCK)|(1<<EN_TIMCK)|(1<<EN_GPIOCK))
+
+
+_TEXT_BASE:
+	.word	TEXT_BASE        /* sdram load addr from config.mk */
+
+.globl lowlevel_init
+lowlevel_init:
+
+	/*
+	 * Configure 1510 pins functions to match our board.
+	 */
+	ldr     r0, REG_PULL_DWN_CTRL_0
+	ldr     r1, VAL_PULL_DWN_CTRL_0
+	str     r1, [r0]
+	ldr     r0, REG_PULL_DWN_CTRL_1
+	ldr     r1, VAL_PULL_DWN_CTRL_1
+	str     r1, [r0]
+	ldr     r0, REG_PULL_DWN_CTRL_2
+	ldr     r1, VAL_PULL_DWN_CTRL_2
+	str     r1, [r0]
+	ldr     r0, REG_PULL_DWN_CTRL_3
+	ldr     r1, VAL_PULL_DWN_CTRL_3
+	str     r1, [r0]
+	ldr     r0, REG_FUNC_MUX_CTRL_4
+	ldr     r1, VAL_FUNC_MUX_CTRL_4
+	str     r1, [r0]
+	ldr     r0, REG_FUNC_MUX_CTRL_5
+	ldr     r1, VAL_FUNC_MUX_CTRL_5
+	str     r1, [r0]
+	ldr     r0, REG_FUNC_MUX_CTRL_6
+	ldr     r1, VAL_FUNC_MUX_CTRL_6
+	str     r1, [r0]
+	ldr     r0, REG_FUNC_MUX_CTRL_7
+	ldr     r1, VAL_FUNC_MUX_CTRL_7
+	str     r1, [r0]
+	ldr     r0, REG_FUNC_MUX_CTRL_8
+	ldr     r1, VAL_FUNC_MUX_CTRL_8
+	str     r1, [r0]
+	ldr     r0, REG_FUNC_MUX_CTRL_9
+	ldr     r1, VAL_FUNC_MUX_CTRL_9
+	str     r1, [r0]
+	ldr     r0, REG_FUNC_MUX_CTRL_A
+	ldr     r1, VAL_FUNC_MUX_CTRL_A
+	str     r1, [r0]
+	ldr     r0, REG_FUNC_MUX_CTRL_B
+	ldr     r1, VAL_FUNC_MUX_CTRL_B
+	str     r1, [r0]
+	ldr     r0, REG_FUNC_MUX_CTRL_C
+	ldr     r1, VAL_FUNC_MUX_CTRL_C
+	str     r1, [r0]
+	ldr     r0, REG_FUNC_MUX_CTRL_D
+	ldr     r1, VAL_FUNC_MUX_CTRL_D
+	str     r1, [r0]
+	ldr     r0, REG_VOLTAGE_CTRL_0
+	ldr     r1, VAL_VOLTAGE_CTRL_0
+	str     r1, [r0]
+	ldr     r0, REG_TEST_DBG_CTRL_0
+	ldr     r1, VAL_TEST_DBG_CTRL_0
+	str     r1, [r0]
+	ldr     r0, REG_MOD_CONF_CTRL_0
+	ldr     r1, VAL_MOD_CONF_CTRL_0
+	str     r1, [r0]
+
+	/* Move to 1510 mode */
+	ldr     r0, REG_COMP_MODE_CTRL_0
+	ldr     r1, VAL_COMP_MODE_CTRL_0
+	str     r1, [r0]
+
+	/* Set up Traffic Ctlr*/
+	ldr r0, REG_TC_IMIF_PRIO
+	mov r1, #0x0
+	str r1, [r0]
+	ldr r0, REG_TC_EMIFS_PRIO
+	str r1, [r0]
+	ldr r0, REG_TC_EMIFF_PRIO
+	str r1, [r0]
+
+	ldr r0, REG_TC_EMIFS_CONFIG
+	ldr r1, [r0]
+	bic r1, r1, #0x08   /* clear the global power-down enable PDE bit */
+	bic r1, r1, #0x01   /* write protect flash by clearing the WP bit */
+	str r1, [r0]        /* EMIFS GlB Configuration. (value 0x12 most likely) */
+
+	/* Setup some clock domains */
+	ldr r1, =OMAP1510_CLKS
+	ldr r0, REG_ARM_IDLECT2
+	strh r1, [r0]  /* CLKM, Clock domain control. */
+
+	mov r1, #0x01  /* PER_EN bit */
+	ldr r0, REG_ARM_RSTCT2
+	strh r1, [r0]  /* CLKM; Peripheral reset. */
+
+	/* Set CLKM to Sync-Scalable  */
+	/* I supposidly need to enable the dsp clock before switching */
+	mov r1, #0x1000
+	ldr r0, REG_ARM_SYSST
+	strh r1, [r0]
+	mov r0, #0x400
+1:
+	subs r0, r0, #0x1   /* wait for any bubbles to finish */
+	bne 1b
+
+	ldr r1, VAL_ARM_CKCTL  /* use 12Mhz ref, PER must be <= 50Mhz so /2 */
+	ldr r0, REG_ARM_CKCTL
+	strh r1, [r0]
+
+	/* setup DPLL 1 */
+	ldr r1, VAL_DPLL1_CTL
+	ldr r0, REG_DPLL1_CTL
+	strh r1, [r0]
+	ands r1, r1, #0x10  /* Check if PLL is enabled. */
+	beq lock_end        /* Do not look for lock if BYPASS selected */
+2:
+	ldrh r1, [r0]
+	ands r1, r1, #0x01  /* Check the LOCK bit. */
+	beq 2b              /* ...loop until bit goes hi. */
+lock_end:
+
+	/* Set memory timings corresponding to the new clock speed */
+
+	/* Check execution location to determine current execution location
+	 * and branch to appropriate initialization code.
+	 */
+	mov r0, #0x10000000                 /* Load physical SDRAM base. */
+	mov r1, pc                          /* Get current execution location. */
+	/* Zero all but top 6 bits of PC, as they alone detect whether an
+	 * address is in the range 0x1000:0000-0x13ff:ffff, the 64M sized
+	 * valid range for SDRAM on the OMAP 1510/5910.
+	 */
+	and r1, r1, #0xfc000000
+	cmp r1, r0			/* Compare. */
+	beq skip_sdram			/* Skip over EMIF-fast initialization
+					 * if running from SDRAM.
+					 */
+
+	/*
+	 * Delay for SDRAM initialization.
+	 */
+	mov r3, #0x1800                        /* value should be checked */
+3:
+	subs r3, r3, #0x1                     /* Decrement count */
+	bne 3b
+
+	/*
+	 * Set SDRAM control values. Disable refresh before MRS command.
+	 */
+	ldr r0, VAL_TC_EMIFF_SDRAM_CONFIG   /* get good value */
+	bic r3, r0, #0xC                    /* (BIT3|BIT2) ulConfig with auto-refresh disabled. */
+	orr r3, r3, #0x8000000              /* (BIT27) Disable CLK when Power down or Self-Refresh */
+	orr r3, r3, #0x4000000              /* BIT26 Power Down Enable */
+	ldr r2, REG_TC_EMIFF_SDRAM_CONFIG   /* Point to configuration register. */
+	str r3, [r2]                        /* Store the passed value with AR disabled. */
+
+	ldr r1, VAL_TC_EMIFF_MRS            /* get MRS value */
+	ldr r2, REG_TC_EMIFF_MRS            /* Point to MRS register. */
+	str r1, [r2]                        /* Store the passed value.*/
+
+	ldr r2, REG_TC_EMIFF_SDRAM_CONFIG   /* Point to configuration register. */
+	str r0, [r2]                        /* Store the passed value. */
+
+	/*
+	 * Delay for SDRAM initialization.
+	 */
+	mov r3, #0x1800
+4:
+	subs r3, r3, #1                     /* Decrement count. */
+	bne 4b
+
+skip_sdram:
+
+	/* slow interface */
+	ldr r1, VAL_TC_EMIFS_CS0_CONFIG
+	ldr r0, REG_TC_EMIFS_CS0_CONFIG
+	str r1, [r0] /* Chip Select 0 */
+	ldr r1, VAL_TC_EMIFS_CS1_CONFIG
+	ldr r0, REG_TC_EMIFS_CS1_CONFIG
+	str r1, [r0] /* Chip Select 1 */
+	ldr r1, VAL_TC_EMIFS_CS2_CONFIG
+	ldr r0, REG_TC_EMIFS_CS2_CONFIG
+	str r1, [r0] /* Chip Select 2 */
+	ldr r1, VAL_TC_EMIFS_CS3_CONFIG
+	ldr r0, REG_TC_EMIFS_CS3_CONFIG
+	str r1, [r0] /* Chip Select 3 */
+
+ /* Next, Enable the RS232 Line Drivers in the FPGA. */
+ /* Also, power on the audio CODEC's amplifier here, */
+ /* which will make a noise on the audio output. */
+ /* This is done here instead of in the kernel so there */
+ /* isn't a loud popping noise at the start of each */
+ /* song. */
+ /* Also, disable the CODEC's clocks. */
+ /* omap1510-HelenP1 [specific] */
+
+	ldr r0, REG_FPGA_POWER
+	mov r1, #0
+	ldr r2, REG_FPGA_DIP_SWITCH
+	ldrb r3, [r2]
+	cmp r3, #0x8
+	movne r1, #0x62     /* Enable the RS232 Line Drivers in the EPLD */
+	strb r1, [r0]
+	ldr r0, REG_FPGA_AUDIO
+	mov r1, #0x0     /* Disable sound driver (CODEC clocks) */
+	strb r1, [r0]
+
+	/* back to arch calling code */
+	mov	pc, lr
+
+/* the literal pools origin */
+	.ltorg
+
+/* OMAP configuration registers */
+REG_FUNC_MUX_CTRL_0:		/* 32 bits */
+	.word 0xfffe1000
+REG_FUNC_MUX_CTRL_1:		/* 32 bits */
+	.word 0xfffe1004
+REG_FUNC_MUX_CTRL_2:		/* 32 bits */
+	.word 0xfffe1008
+REG_COMP_MODE_CTRL_0:		/* 32 bits */
+	.word 0xfffe100c
+REG_FUNC_MUX_CTRL_3:		/* 32 bits */
+	.word 0xfffe1010
+REG_FUNC_MUX_CTRL_4:		/* 32 bits */
+	.word 0xfffe1014
+REG_FUNC_MUX_CTRL_5:		/* 32 bits */
+	.word 0xfffe1018
+REG_FUNC_MUX_CTRL_6:		/* 32 bits */
+	.word 0xfffe101c
+REG_FUNC_MUX_CTRL_7:		/* 32 bits */
+	.word 0xfffe1020
+REG_FUNC_MUX_CTRL_8:		/* 32 bits */
+	.word 0xfffe1024
+REG_FUNC_MUX_CTRL_9:		/* 32 bits */
+	.word 0xfffe1028
+REG_FUNC_MUX_CTRL_A:		/* 32 bits */
+	.word 0xfffe102C
+REG_FUNC_MUX_CTRL_B:		/* 32 bits */
+	.word 0xfffe1030
+REG_FUNC_MUX_CTRL_C:		/* 32 bits */
+	.word 0xfffe1034
+REG_FUNC_MUX_CTRL_D:		/* 32 bits */
+	.word 0xfffe1038
+REG_PULL_DWN_CTRL_0:		/* 32 bits */
+	.word 0xfffe1040
+REG_PULL_DWN_CTRL_1:		/* 32 bits */
+	.word 0xfffe1044
+REG_PULL_DWN_CTRL_2:		/* 32 bits */
+	.word 0xfffe1048
+REG_PULL_DWN_CTRL_3:		/* 32 bits */
+	.word 0xfffe104c
+REG_VOLTAGE_CTRL_0:		/* 32 bits */
+	.word 0xfffe1060
+REG_TEST_DBG_CTRL_0:		/* 32 bits */
+	.word 0xfffe1070
+REG_MOD_CONF_CTRL_0:		/* 32 bits */
+	.word 0xfffe1080
+REG_TC_IMIF_PRIO:		/* 32 bits */
+	.word 0xfffecc00
+REG_TC_EMIFS_PRIO:		/* 32 bits */
+	.word 0xfffecc04
+REG_TC_EMIFF_PRIO:		/* 32 bits */
+	.word 0xfffecc08
+REG_TC_EMIFS_CONFIG:		/* 32 bits */
+	.word 0xfffecc0c
+REG_TC_EMIFS_CS0_CONFIG:	/* 32 bits */
+	.word 0xfffecc10
+REG_TC_EMIFS_CS1_CONFIG:	/* 32 bits */
+	.word 0xfffecc14
+REG_TC_EMIFS_CS2_CONFIG:	/* 32 bits */
+	.word 0xfffecc18
+REG_TC_EMIFS_CS3_CONFIG:	/* 32 bits */
+	.word 0xfffecc1c
+REG_TC_EMIFF_SDRAM_CONFIG:	/* 32 bits */
+	.word 0xfffecc20
+REG_TC_EMIFF_MRS:		/* 32 bits */
+	.word 0xfffecc24
+/* MPU clock/reset/power mode control registers */
+REG_ARM_CKCTL:			/* 16 bits */
+	.word 0xfffece00
+REG_ARM_IDLECT2:		/* 16 bits */
+	.word 0xfffece08
+REG_ARM_RSTCT2:			/* 16 bits */
+	.word 0xfffece14
+REG_ARM_SYSST:			/* 16 bits */
+	.word 0xfffece18
+/* DPLL control registers */
+REG_DPLL1_CTL:			/* 16 bits */
+	.word 0xfffecf00
+/* identification code register */
+REG_IDCODE:			/* 32 bits */
+	.word 0xfffed404
+
+/* Innovator specific */
+REG_FPGA_LED_DIGIT:		/* 8 bits (not used on Innovator) */
+	.word 0x08000003
+REG_FPGA_POWER:			/* 8 bits */
+	.word 0x08000005
+REG_FPGA_AUDIO:			/* 8 bits (not used on Innovator) */
+	.word 0x0800000c
+REG_FPGA_DIP_SWITCH:		/* 8 bits (not used on Innovator) */
+	.word 0x0800000e
+
+VAL_COMP_MODE_CTRL_0:
+	.word 0x0000eaef
+VAL_FUNC_MUX_CTRL_4:
+	.word 0x00000000
+VAL_FUNC_MUX_CTRL_5:
+	.word 0x00000000
+VAL_FUNC_MUX_CTRL_6:
+	.word 0x00000001
+VAL_FUNC_MUX_CTRL_7:
+	.word 0x00000000
+VAL_FUNC_MUX_CTRL_8:
+	.word 0x10001200
+VAL_FUNC_MUX_CTRL_9:
+	.word 0x01201012
+VAL_FUNC_MUX_CTRL_A:
+	.word 0x00000248
+VAL_FUNC_MUX_CTRL_B:
+	.word 0x00000248
+VAL_FUNC_MUX_CTRL_C:
+	.word 0x09000000
+VAL_FUNC_MUX_CTRL_D:
+	.word 0x00000000
+VAL_PULL_DWN_CTRL_0:
+	.word 0x11a10000
+VAL_PULL_DWN_CTRL_1:
+	.word 0x2e047fff
+VAL_PULL_DWN_CTRL_2:
+	.word 0xffd603a6
+VAL_PULL_DWN_CTRL_3:
+	.word 0x00003e03
+VAL_VOLTAGE_CTRL_0:
+	.word 0x00000007
+VAL_TEST_DBG_CTRL_0:
+	/*  See Errata 4.13, This works around a SRAM bug, for chips below ES2.5 .
+	 *   This slows down internal SRAM accesses.
+	 */
+	.word 0x00000007
+VAL_MOD_CONF_CTRL_0:
+	.word 0x0b000008
+VAL_ARM_CKCTL:
+	.word 0x010f
+VAL_DPLL1_CTL:
+	.word 0x2710
+VAL_TC_EMIFS_CS1_CONFIG_PRELIM:
+	.word 0x00001149
+VAL_TC_EMIFS_CS2_CONFIG_PRELIM:
+	.word 0x00004158
+VAL_TC_EMIFS_CS0_CONFIG:
+	.word 0x002130b0
+VAL_TC_EMIFS_CS1_CONFIG:
+	.word 0x0000f559
+VAL_TC_EMIFS_CS2_CONFIG:
+	.word 0x000055f0
+VAL_TC_EMIFS_CS3_CONFIG:
+	.word 0x00003331
+VAL_TC_EMIFF_SDRAM_CONFIG:
+	.word 0x010290fc
+VAL_TC_EMIFF_MRS:
+	.word 0x00000027