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authorPaul Kocialkowski <contact@paulk.fr>2014-09-06 22:31:49 +0200
committerPaul Kocialkowski <contact@paulk.fr>2014-09-06 22:33:42 +0200
commitd04fab752bd789a479efeaa4310f8e4afd839cd0 (patch)
tree5c6531e0f863e4965dab3b4f590d61216624d876 /board
parentef50ce9e2fd41e06805b561e9e5a2f523bf76efb (diff)
downloadx-loader-sniper-d04fab752bd789a479efeaa4310f8e4afd839cd0.tar.gz
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LG Optimus Black (P970) supportmaster
Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
Diffstat (limited to 'board')
-rw-r--r--board/sniper/Makefile51
-rw-r--r--board/sniper/config.mk12
-rwxr-xr-xboard/sniper/platform.S264
-rw-r--r--board/sniper/sniper.c596
-rw-r--r--board/sniper/x-load.lds54
5 files changed, 977 insertions, 0 deletions
diff --git a/board/sniper/Makefile b/board/sniper/Makefile
new file mode 100644
index 0000000..6b02630
--- /dev/null
+++ b/board/sniper/Makefile
@@ -0,0 +1,51 @@
+#
+# (C) Copyright 2000, 2001, 2002
+# 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 := sniper.o
+SOBJS := platform.o
+
+SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c)
+OBJS := $(addprefix $(obj),$(COBJS))
+SOBJS := $(addprefix $(obj),$(SOBJS))
+
+$(LIB): $(obj).depend $(OBJS) $(SOBJS)
+ $(AR) crv $@ $(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/sniper/config.mk b/board/sniper/config.mk
new file mode 100644
index 0000000..0a8ec71
--- /dev/null
+++ b/board/sniper/config.mk
@@ -0,0 +1,12 @@
+# (C) Copyright 2014 Paul Kocialkowski <contact@paulk.fr>
+#
+# During peripheral booting, X-Loader is loaded at 0x40200000 (SRAM start).
+# However, stack is moved below X-Loader, so we need to relocate on SRAM too.
+#
+# Relocate to SRAM:
+# TEXT_BASE = 0x40206000
+#
+# Relocate to DDR/SDRAM:
+# TEXT_BASE = 0x80e80000
+
+TEXT_BASE = 0x80e80000
diff --git a/board/sniper/platform.S b/board/sniper/platform.S
new file mode 100755
index 0000000..9d4d91e
--- /dev/null
+++ b/board/sniper/platform.S
@@ -0,0 +1,264 @@
+/*
+ * Board specific setup info
+ *
+ * (C) Copyright 2004-2006
+ * Texas Instruments, <www.ti.com>
+ * Richard Woodruff <r-woodruff2@ti.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>
+#include <asm/arch/cpu.h>
+#include <asm/arch/mem.h>
+#include <asm/arch/clocks.h>
+
+_TEXT_BASE:
+ .word TEXT_BASE /* sdram load addr from config.mk */
+
+#if !defined(CFG_NAND_BOOT) && !defined(CFG_NAND_BOOT)
+/**************************************************************************
+ * cpy_clk_code: relocates clock code into SRAM where its safer to execute
+ * R1 = SRAM destination address.
+ *************************************************************************/
+.global cpy_clk_code
+ cpy_clk_code:
+ /* Copy DPLL code into SRAM */
+ adr r0, go_to_speed /* get addr of clock setting code */
+ mov r2, #384 /* r2 size to copy (div by 32 bytes) */
+ mov r1, r1 /* r1 <- dest address (passed in) */
+ add r2, r2, r0 /* r2 <- source end address */
+next2:
+ ldmia r0!, {r3-r10} /* copy from source address [r0] */
+ stmia r1!, {r3-r10} /* copy to target address [r1] */
+ cmp r0, r2 /* until source end address [r2] */
+ bne next2
+ mov pc, lr /* back to caller */
+
+/* ****************************************************************************
+ * NOTE: 3430 X-loader currently does not use this code.
+* It could be removed its is kept for compatabily with u-boot.
+ *
+ * go_to_speed: -Moves to bypass, -Commits clock dividers, -puts dpll at speed
+ * -executed from SRAM.
+ * R0 = CM_CLKEN_PLL-bypass value
+ * R1 = CM_CLKSEL1_PLL-m, n, and divider values
+ * R2 = CM_CLKSEL_CORE-divider values
+ * R3 = CM_IDLEST_CKGEN - addr dpll lock wait
+ *
+ * Note: If core unlocks/relocks and SDRAM is running fast already it gets
+ * confused. A reset of the controller gets it back. Taking away its
+ * L3 when its not in self refresh seems bad for it. Normally, this code
+ * runs from flash before SDR is init so that should be ok.
+ ******************************************************************************/
+.global go_to_speed
+ go_to_speed:
+ stmfd sp!, {r4-r6}
+
+ /* move into fast relock bypass */
+ ldr r4, pll_ctl_add
+ str r0, [r4]
+wait1:
+ ldr r5, [r3] /* get status */
+ and r5, r5, #0x1 /* isolate core status */
+ cmp r5, #0x1 /* still locked? */
+ beq wait1 /* if lock, loop */
+
+ /* set new dpll dividers _after_ in bypass */
+ ldr r5, pll_div_add1
+ str r1, [r5] /* set m, n, m2 */
+ ldr r5, pll_div_add2
+ str r2, [r5] /* set l3/l4/.. dividers*/
+ ldr r5, pll_div_add3 /* wkup */
+ ldr r2, pll_div_val3 /* rsm val */
+ str r2, [r5]
+ ldr r5, pll_div_add4 /* gfx */
+ ldr r2, pll_div_val4
+ str r2, [r5]
+ ldr r5, pll_div_add5 /* emu */
+ ldr r2, pll_div_val5
+ str r2, [r5]
+
+ /* now prepare GPMC (flash) for new dpll speed */
+ /* flash needs to be stable when we jump back to it */
+ ldr r5, flash_cfg3_addr
+ ldr r2, flash_cfg3_val
+ str r2, [r5]
+ ldr r5, flash_cfg4_addr
+ ldr r2, flash_cfg4_val
+ str r2, [r5]
+ ldr r5, flash_cfg5_addr
+ ldr r2, flash_cfg5_val
+ str r2, [r5]
+ ldr r5, flash_cfg1_addr
+ ldr r2, [r5]
+ orr r2, r2, #0x3 /* up gpmc divider */
+ str r2, [r5]
+
+ /* lock DPLL3 and wait a bit */
+ orr r0, r0, #0x7 /* set up for lock mode */
+ str r0, [r4] /* lock */
+ nop /* ARM slow at this point working at sys_clk */
+ nop
+ nop
+ nop
+wait2:
+ ldr r5, [r3] /* get status */
+ and r5, r5, #0x1 /* isolate core status */
+ cmp r5, #0x1 /* still locked? */
+ bne wait2 /* if lock, loop */
+ nop
+ nop
+ nop
+ nop
+ ldmfd sp!, {r4-r6}
+ mov pc, lr /* back to caller, locked */
+
+_go_to_speed: .word go_to_speed
+
+/* these constants need to be close for PIC code */
+/* The Nor has to be in the Flash Base CS0 for this condition to happen */
+flash_cfg1_addr:
+ .word (GPMC_CONFIG_CS0 + GPMC_CONFIG1)
+flash_cfg3_addr:
+ .word (GPMC_CONFIG_CS0 + GPMC_CONFIG3)
+flash_cfg3_val:
+ .word STNOR_GPMC_CONFIG3
+flash_cfg4_addr:
+ .word (GPMC_CONFIG_CS0 + GPMC_CONFIG4)
+flash_cfg4_val:
+ .word STNOR_GPMC_CONFIG4
+flash_cfg5_val:
+ .word STNOR_GPMC_CONFIG5
+flash_cfg5_addr:
+ .word (GPMC_CONFIG_CS0 + GPMC_CONFIG5)
+pll_ctl_add:
+ .word CM_CLKEN_PLL
+pll_div_add1:
+ .word CM_CLKSEL1_PLL
+pll_div_add2:
+ .word CM_CLKSEL_CORE
+pll_div_add3:
+ .word CM_CLKSEL_WKUP
+pll_div_val3:
+ .word (WKUP_RSM << 1)
+pll_div_add4:
+ .word CM_CLKSEL_GFX
+pll_div_val4:
+ .word (GFX_DIV << 0)
+pll_div_add5:
+ .word CM_CLKSEL1_EMU
+pll_div_val5:
+ .word CLSEL1_EMU_VAL
+
+#endif
+
+.globl lowlevel_init
+lowlevel_init:
+ ldr sp, SRAM_STACK
+ str ip, [sp] /* stash old link register */
+ mov ip, lr /* save link reg across call */
+ bl s_init /* go setup pll,mux,memory */
+ ldr ip, [sp] /* restore save ip */
+ mov lr, ip /* restore link reg */
+
+ /* back to arch calling code */
+ mov pc, lr
+
+ /* the literal pools origin */
+ .ltorg
+
+REG_CONTROL_STATUS:
+ .word CONTROL_STATUS
+SRAM_STACK:
+ .word LOW_LEVEL_SRAM_STACK
+
+/* DPLL(1-4) PARAM TABLES */
+/* Each of the tables has M, N, FREQSEL, M2 values defined for nominal
+ * OPP (1.2V). The fields are defined according to dpll_param struct(clock.c).
+ * The values are defined for all possible sysclk and for ES1 and ES2.
+ */
+
+mpu_dpll_param:
+/* 12MHz */
+.word 50, 0, 0, 1
+/* 13MHz */
+.word 600, 12, 0, 1
+/* 19.2MHz */
+.word 125, 3, 0, 1
+/* 26MHz */
+.word 300, 12, 0, 1
+/* 38.4MHz */
+.word 125, 7, 0, 1
+
+.globl get_mpu_dpll_param
+get_mpu_dpll_param:
+ adr r0, mpu_dpll_param
+ mov pc, lr
+
+iva_dpll_param:
+/* 12MHz */
+.word 130, 2, 0, 1
+/* 13MHz */
+.word 40, 0, 0, 1
+/* 19.2MHz */
+.word 325, 11, 0, 1
+/* 26MHz */
+.word 20, 0, 0, 1
+/* 38.4MHz */
+.word 325, 23, 0, 1
+
+.globl get_iva_dpll_param
+get_iva_dpll_param:
+ adr r0, iva_dpll_param
+ mov pc, lr
+
+core_dpll_param:
+/* 12MHz */
+.word 100, 2, 0, 1
+/* 13MHz */
+.word 400, 12, 0, 1
+/* 19.2MHz */
+.word 375, 17, 0, 1
+/* 26MHz */
+.word 200, 12, 0, 1
+/* 38.4MHz */
+.word 375, 35, 0, 1
+
+.globl get_core_dpll_param
+get_core_dpll_param:
+ adr r0, core_dpll_param
+ mov pc, lr
+
+/* PER DPLL values are same for both ES1 and ES2 */
+per_dpll_param:
+/* Default to 96 MHz M2 */
+/* sys(kHz), m, n, clkin, sd, dco, m2, m3, m4, m5, m6, m2div */
+.word 12000, 360, 4, 0, 4, 2, 9, 16, 5, 4, 3, 1
+.word 13000, 432, 0, 1, 4, 2, 9, 16, 5, 4, 3, 1
+.word 19200, 360, 7, 0, 4, 2, 9, 16, 5, 4, 3, 1
+.word 26000, 432, 12, 0, 4, 2, 9, 16, 5, 4, 3, 1
+.word 38400, 360, 15, 0, 4, 2, 9, 16, 5, 4, 3, 1
+.word 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+
+.globl get_per_dpll_param
+get_per_dpll_param:
+ adr r0, per_dpll_param
+ mov pc, lr
+
diff --git a/board/sniper/sniper.c b/board/sniper/sniper.c
new file mode 100644
index 0000000..037e260
--- /dev/null
+++ b/board/sniper/sniper.c
@@ -0,0 +1,596 @@
+/*
+ * (C) Copyright 2006
+ * Texas Instruments, <www.ti.com>
+ * Jian Zhang <jzhang@ti.com>
+ * Richard Woodruff <r-woodruff2@ti.com>
+ * (C) Copyright 2008-2010 LGE Inc. from omap3430labrador.c
+ * (C) Copyright 2014 Paul Kocialkowski <contact@paulk.fr>
+ *
+ * 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 <part.h>
+#include <fat.h>
+#include <asm/arch/cpu.h>
+#include <asm/arch/bits.h>
+#include <asm/arch/mux.h>
+#include <asm/arch/gpio.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/arch/sys_info.h>
+#include <asm/arch/clocks.h>
+#include <asm/arch/mem.h>
+
+/* Used to index into DPLL parameter tables */
+struct dpll_param {
+ unsigned int m;
+ unsigned int n;
+ unsigned int fsel;
+ unsigned int m2;
+};
+
+typedef struct dpll_param dpll_param;
+
+struct dpll_per_param {
+ unsigned int sys_clk;
+ unsigned int m;
+ unsigned int n;
+ unsigned int clkin;
+ unsigned int sd;
+ unsigned int dco;
+ unsigned int m2;
+ unsigned int m3;
+ unsigned int m4;
+ unsigned int m5;
+ unsigned int m6;
+ unsigned int m2div;
+};
+
+typedef struct dpll_per_param dpll_per_param;
+
+/* Following functions are exported from lowlevel_init.S */
+extern dpll_param *get_mpu_dpll_param();
+extern dpll_param *get_iva_dpll_param();
+extern dpll_param *get_core_dpll_param();
+extern dpll_per_param *get_per_dpll_param();
+
+#define __raw_readl(a) (*(volatile unsigned int *)(a))
+#define __raw_writel(v, a) (*(volatile unsigned int *)(a) = (v))
+#define __raw_readw(a) (*(volatile unsigned short *)(a))
+#define __raw_writew(v, a) (*(volatile unsigned short *)(a) = (v))
+
+/*******************************************************
+ * Routine: delay
+ * Description: spinning delay to use before udelay works
+ ******************************************************/
+static inline void delay(unsigned long loops)
+{
+ __asm__ volatile ("1:\n" "subs %0, %1, #1\n"
+ "bne 1b":"=r" (loops):"0"(loops));
+}
+
+void udelay (unsigned long usecs) {
+ delay(usecs);
+}
+
+/*****************************************
+ * Routine: board_init
+ * Description: Early hardware init.
+ *****************************************/
+int board_init(void)
+{
+ return 0;
+}
+
+/*************************************************************
+ * Routine: get_mem_type(void) - returns the kind of memory connected
+ * to GPMC that we are trying to boot form. Uses SYS BOOT settings.
+ *************************************************************/
+u32 get_mem_type(void)
+{
+ return GPMC_NONE;
+}
+
+#ifdef CFG_SNIPER_DDR
+/*********************************************************************
+ * config_sniper_ddr() - Init DDR
+ *********************************************************************/
+void config_sniper_ddr(void)
+{
+ /* check if its h/w or s/w reset for warm reset workaround */
+ if (__raw_readl(PRM_RSTTST) & 0x2) {
+ /* Enable SDRC clock & wait SDRC idle status to access*/
+ sr32(CM_ICLKEN1_CORE, 1, 1, 0x1);
+ wait_on_value(BIT1, 0, CM_IDLEST1_CORE, LDELAY);
+ }
+ else {
+ /* do a SDRC reset between types to clear regs */
+ __raw_writel(SOFTRESET, SDRC_SYSCONFIG);/* reset sdrc */
+ /* wait on reset */
+ wait_on_value(BIT0, BIT0, SDRC_STATUS, 12000000);
+ __raw_writel(0, SDRC_SYSCONFIG);/* clear soft reset */
+ }
+ /* Clear reset sources */
+ __raw_writel(0xfff, PRM_RSTTST);
+
+ /* setup sdrc to ball mux */
+ __raw_writel(SDP_SDRC_SHARING, SDRC_SHARING);
+
+ /* Configure the first chip select */
+ /* set mdcfg */
+ __raw_writel(SDP_SDRC_MDCFG_0_DDR, SDRC_MCFG_0); /* CS0 */
+ __raw_writel(SDP_SDRC_MDCFG_0_DDR, SDRC_MCFG_1); /* CS1 */
+
+ /* 2 * 128M = 256M for cs1 */
+ __raw_writel(0x2, SDRC_CS_CFG);
+
+ /* set timing */
+ __raw_writel(SNIPER_SDRC_ACTIM_CTRLA_0, SDRC_ACTIM_CTRLA_0); /* CS0 */
+ __raw_writel(SNIPER_SDRC_ACTIM_CTRLB_0, SDRC_ACTIM_CTRLB_0); /* CS0 */
+ __raw_writel(SDP_SDRC_RFR_CTRL, SDRC_RFR_CTRL_0);
+
+ __raw_writel(SNIPER_SDRC_ACTIM_CTRLA_0, SDRC_ACTIM_CTRLA_1); /* CS1 */
+ __raw_writel(SNIPER_SDRC_ACTIM_CTRLB_0, SDRC_ACTIM_CTRLB_1); /* CS1 */
+ __raw_writel(SDP_SDRC_RFR_CTRL, SDRC_RFR_CTRL_1);
+
+ /* init sequence for mDDR/mSDR using manual commands (DDR is different) */
+ __raw_writel(CMD_NOP, SDRC_MANUAL_0);
+ delay(5000);
+ __raw_writel(CMD_PRECHARGE, SDRC_MANUAL_0);
+ __raw_writel(CMD_AUTOREFRESH, SDRC_MANUAL_0);
+ __raw_writel(CMD_AUTOREFRESH, SDRC_MANUAL_0);
+
+ /* set mr0 */
+ __raw_writel(SDP_SDRC_MR_0_DDR, SDRC_MR_0);
+
+ /* drive strength weak */
+ __raw_writel(0x20, 0x6D00008C); //SDRC_EMR2_0
+
+ /* init sequence for mDDR/mSDR using manual commands (DDR is different) */
+ __raw_writel(CMD_NOP, SDRC_MANUAL_1);
+ delay(5000);
+ __raw_writel(CMD_PRECHARGE, SDRC_MANUAL_1);
+ __raw_writel(CMD_AUTOREFRESH, SDRC_MANUAL_1);
+ __raw_writel(CMD_AUTOREFRESH, SDRC_MANUAL_1);
+
+ /* set mr0 */
+ __raw_writel(SDP_SDRC_MR_0_DDR, SDRC_MR_1);
+
+ /* drive strength weak */
+ __raw_writel(0x20, 0x6D0000BC); //SDRC_EMR2_1
+
+ __raw_writel(0x2, SDRC_CS_CFG);
+
+ /* set up dllB-CS1 */
+ __raw_writel(SDP_SDRC_DLLAB_CTRL, SDRC_DLLB_CTRL);
+ delay(0x2000); /* give time to lock */
+
+ /* set up dllA-CS0 */
+ __raw_writel(SDP_SDRC_DLLAB_CTRL, SDRC_DLLA_CTRL);
+ delay(0x2000); /* give time to lock */
+}
+#endif // CFG_SNIPER_DDR
+
+/*************************************************************
+ * get_sys_clk_speed - determine reference oscillator speed
+ * based on known 32kHz clock and gptimer.
+ *************************************************************/
+u32 get_osc_clk_speed(void)
+{
+ u32 start, cstart, cend, cdiff, cdiv, val;
+
+ val = __raw_readl(PRM_CLKSRC_CTRL);
+
+ if (val & SYSCLKDIV_2)
+ cdiv = 2;
+ else
+ cdiv = 1;
+
+ /* enable timer2 */
+ val = __raw_readl(CM_CLKSEL_WKUP) | BIT0;
+ __raw_writel(val, CM_CLKSEL_WKUP); /* select sys_clk for GPT1 */
+
+ /* Enable I and F Clocks for GPT1 */
+ val = __raw_readl(CM_ICLKEN_WKUP) | BIT0 | BIT2;
+ __raw_writel(val, CM_ICLKEN_WKUP);
+ val = __raw_readl(CM_FCLKEN_WKUP) | BIT0;
+ __raw_writel(val, CM_FCLKEN_WKUP);
+
+ __raw_writel(0, OMAP34XX_GPT1 + TLDR); /* start counting at 0 */
+ __raw_writel(GPT_EN, OMAP34XX_GPT1 + TCLR); /* enable clock */
+ /* enable 32kHz source */
+ /* enabled out of reset */
+ /* determine sys_clk via gauging */
+
+ start = 20 + __raw_readl(S32K_CR); /* start time in 20 cycles */
+ while (__raw_readl(S32K_CR) < start) ; /* dead loop till start time */
+ cstart = __raw_readl(OMAP34XX_GPT1 + TCRR); /* get start sys_clk count */
+ while (__raw_readl(S32K_CR) < (start + 20)) ; /* wait for 40 cycles */
+ cend = __raw_readl(OMAP34XX_GPT1 + TCRR); /* get end sys_clk count */
+ cdiff = cend - cstart; /* get elapsed ticks */
+ cdiff *= cdiv;
+
+ /* based on number of ticks assign speed */
+ if (cdiff > 19000)
+ return S38_4M;
+ else if (cdiff > 15200)
+ return S26M;
+ else if (cdiff > 13000)
+ return S24M;
+ else if (cdiff > 9000)
+ return S19_2M;
+ else if (cdiff > 7600)
+ return S13M;
+ else
+ return S12M;
+}
+
+/******************************************************************************
+ * prcm_init() - inits clocks for PRCM as defined in clocks.h
+ * -- called from SRAM, or Flash (using temp SRAM stack).
+ *****************************************************************************/
+void prcm_init(void)
+{
+ u32 osc_clk = 0, sys_clkin_sel;
+ dpll_per_param *dpll_per_param_p;
+ dpll_param *dpll_param_p;
+ u32 clk_index, sil_index;
+
+ /* Gauge the input clock speed and find out the sys_clkin_sel
+ * value corresponding to the input clock.
+ */
+ osc_clk = get_osc_clk_speed();
+ get_sys_clkin_sel(osc_clk, &sys_clkin_sel);
+
+ sr32(PRM_CLKSEL, 0, 3, sys_clkin_sel); /* set input crystal speed */
+
+ /* If the input clock is greater than 19.2M always divide/2 */
+ sr32(PRM_CLKSRC_CTRL, 6, 2, 1); /* input clock divider */
+ clk_index = sys_clkin_sel;
+
+ sr32(PRM_CLKSRC_CTRL, 0, 2, 0);/* Bypass mode: T2 inputs a square clock */
+
+ /* The DPLL tables are defined according to sysclk value and
+ * silicon revision. The clk_index value will be used to get
+ * the values for that input sysclk from the DPLL param table
+ * and sil_index will get the values for that SysClk for the
+ * appropriate silicon rev.
+ */
+ sil_index = !(get_cpu_rev() == CPU_3XX_ES10);
+
+ /* Unlock MPU DPLL (slows things down, and needed later) */
+ sr32(CM_CLKEN_PLL_MPU, 0, 3, PLL_LOW_POWER_BYPASS);
+ wait_on_value(BIT0, 0, CM_IDLEST_PLL_MPU, LDELAY);
+
+ /* Getting the base address of Core DPLL param table */
+ dpll_param_p = (dpll_param *) get_core_dpll_param();
+ /* Moving it to the right sysclk and ES rev base */
+ dpll_param_p = dpll_param_p + 1 * clk_index + sil_index;
+ /* CORE DPLL */
+ /* sr32(CM_CLKSEL2_EMU) set override to work when asleep */
+ sr32(CM_CLKEN_PLL, 0, 3, PLL_FAST_RELOCK_BYPASS);
+ wait_on_value(BIT0, 0, CM_IDLEST_CKGEN, LDELAY);
+
+ /* For 3430 ES1.0 Errata 1.50, default value directly doesnt
+ work. write another value and then default value. */
+ sr32(CM_CLKSEL1_EMU, 16, 5, CORE_M3X2 + 1); /* m3x2 */
+ sr32(CM_CLKSEL1_EMU, 16, 5, CORE_M3X2); /* m3x2 */
+ sr32(CM_CLKSEL1_PLL, 27, 2, dpll_param_p->m2); /* Set M2 */
+ sr32(CM_CLKSEL1_PLL, 16, 11, dpll_param_p->m); /* Set M */
+ sr32(CM_CLKSEL1_PLL, 8, 7, dpll_param_p->n); /* Set N */
+ sr32(CM_CLKSEL1_PLL, 6, 1, 0); /* 96M Src */
+ sr32(CM_CLKSEL_CORE, 8, 4, CORE_SSI_DIV); /* ssi */
+ sr32(CM_CLKSEL_CORE, 4, 2, CORE_FUSB_DIV); /* fsusb */
+ sr32(CM_CLKSEL_CORE, 2, 2, CORE_L4_DIV); /* l4 */
+ sr32(CM_CLKSEL_CORE, 0, 2, CORE_L3_DIV); /* l3 */
+ sr32(CM_CLKSEL_GFX, 0, 3, GFX_DIV); /* gfx */
+ sr32(CM_CLKSEL_WKUP, 1, 2, WKUP_RSM); /* reset mgr */
+ sr32(CM_CLKEN_PLL, 4, 4, dpll_param_p->fsel); /* FREQSEL */
+ sr32(CM_CLKEN_PLL, 0, 3, PLL_LOCK); /* lock mode */
+ wait_on_value(BIT0, 1, CM_IDLEST_CKGEN, LDELAY);
+
+ /* Getting the base address to PER DPLL param table */
+ dpll_per_param_p = (dpll_per_param *) get_per_dpll_param();
+ /* Moving it to the right sysclk base */
+ dpll_per_param_p = dpll_per_param_p + clk_index;
+ /* PER DPLL */
+ sr32(CM_CLKEN_PLL, 16, 3, PLL_STOP);
+ wait_on_value(BIT1, 0, CM_IDLEST_CKGEN, LDELAY);
+
+ sr32(CM_CLKSEL2_PLL, 8, 12, dpll_per_param_p->m);
+ sr32(CM_CLKSEL2_PLL, 0, 7, dpll_per_param_p->n);
+ sr32(PRM_CLKSRC_CTRL, 8, 1, dpll_per_param_p->clkin);
+ sr32(CM_CLKSEL2_PLL, 24, 7, dpll_per_param_p->sd);
+ sr32(CM_CLKSEL2_PLL, 21, 3, dpll_per_param_p->dco);
+ sr32(CM_CLKSEL3_PLL, 0, 5, dpll_per_param_p->m2);
+ sr32(CM_CLKSEL_DSS, 8, 6, dpll_per_param_p->m3);
+ sr32(CM_CLKSEL_DSS, 0, 6, dpll_per_param_p->m4);
+ sr32(CM_CLKSEL_CAM, 0, 6, dpll_per_param_p->m5);
+ sr32(CM_CLKSEL1_EMU, 24, 6, dpll_per_param_p->m6);
+ sr32(CM_CLKSEL_CORE, 12, 2, dpll_per_param_p->m2div);
+
+ sr32(CM_CLKEN_PLL, 16, 3, PLL_LOCK); /* lock mode */
+ wait_on_value(BIT1, 2, CM_IDLEST_CKGEN, LDELAY);
+
+ /* Getting the base address to MPU DPLL param table */
+ dpll_param_p = (dpll_param *) get_mpu_dpll_param();
+
+ /* Moving it to the right sysclk and ES rev base */
+ dpll_param_p = dpll_param_p + 1 * clk_index + sil_index;
+
+ /* MPU DPLL (unlocked already) */
+ sr32(CM_CLKSEL1_PLL_MPU, 8, 11, dpll_param_p->m); /* Set M */
+ sr32(CM_CLKSEL1_PLL_MPU, 0, 7, dpll_param_p->n); /* Set N */
+ sr32(CM_CLKSEL2_PLL_MPU, 0, 5, dpll_param_p->m2); /* Set M2 */
+
+ sr32(CM_CLKEN_PLL_MPU, 0, 3, PLL_LOCK); /* lock mode */
+ wait_on_value(BIT0, 1, CM_IDLEST_PLL_MPU, LDELAY);
+
+ /* Set up GPTimers to sys_clk source only */
+ sr32(CM_CLKSEL_PER, 0, 8, 0xff);
+ sr32(CM_CLKSEL_WKUP, 0, 1, 1);
+
+ delay(5000);
+}
+
+/**********************************************************
+ * Routine: s_init
+ * Description: Does early system init of muxing and clocks.
+ * - Called at time when only stack is available.
+ **********************************************************/
+
+void s_init(void)
+{
+ watchdog_init();
+ try_unlock_memory();
+ set_muxconf_regs();
+ delay(100);
+ per_clocks_enable();
+ prcm_init();
+ config_sniper_ddr();
+}
+
+/*******************************************************
+ * Routine: misc_init_r
+ * Description: Init ethernet (done here so udelay works)
+ ********************************************************/
+int misc_init_r(void)
+{
+ unsigned char data;
+
+ /* In order to boot from MMC1 (microsd card), the LP870 3.0V_MMC
+ * regulator has to be enabled. The LP870 is accessed through I2C3.
+ *
+ * Enabling 3.0V_MOTION and 1.8V_MOTION_VIO is required to power the
+ * sensors that are slaves on I2C3. When not powered, these sensors
+ * cause I2C3 SCK to stay low. */
+
+ i2c_set_bus_num(0);
+
+ /* TWL4030 VAUX2: 3.0V_MOTION */
+
+ data = 0x20;
+ i2c_write(0x4b, 0x76, 1, &data, 1);
+ data = 0x9;
+ i2c_write(0x4b, 0x79, 1, &data, 1);
+
+ /* TWL4030 VDAC: 1.8V_MOTION_VIO */
+
+ data = 0x20;
+ i2c_write(0x4b, 0x96, 1, &data, 1);
+ data = 0x2;
+ i2c_write(0x4b, 0x99, 1, &data, 1);
+
+ /* LP870 CAM_SUBPM_EN */
+
+ omap_request_gpio(37);
+ omap_set_gpio_direction(37, 0);
+ omap_set_gpio_dataout(37, 1);
+
+ i2c_set_bus_num(2);
+
+ /* LP870 LDO1: 3.0V_MMC */
+
+ data = 0x1d;
+ i2c_write(0x7d, 0x1, 1, &data, 1);
+ data = 0x1;
+ i2c_write(0x7d, 0x8, 1, &data, 1);
+
+ i2c_set_bus_num(0);
+
+ /* TWL4030 VMMC2: 1.8V_MMC_EN */
+
+ data = 0x20;
+ i2c_write(0x4B, 0x86, 1, &data, 1);
+ data = 0xB;
+ i2c_write(0x4B, 0x89, 1, &data, 1);
+
+ return 0;
+}
+
+/******************************************************
+ * Routine: wait_for_command_complete
+ * Description: Wait for posting to finish on watchdog
+ ******************************************************/
+void wait_for_command_complete(unsigned int wd_base)
+{
+ int pending = 1;
+ do {
+ pending = __raw_readl(wd_base + WWPS);
+ } while (pending);
+}
+
+/****************************************
+ * Routine: watchdog_init
+ * Description: Shut down watch dogs
+ *****************************************/
+void watchdog_init(void)
+{
+ /* There are 3 watch dogs WD1=Secure, WD2=MPU, WD3=IVA. WD1 is
+ * either taken care of by ROM (HS/EMU) or not accessible (GP).
+ * We need to take care of WD2-MPU or take a PRCM reset. WD3
+ * should not be running and does not generate a PRCM reset.
+ */
+ sr32(CM_FCLKEN_WKUP, 5, 1, 1);
+ sr32(CM_ICLKEN_WKUP, 5, 1, 1);
+ wait_on_value(BIT5, 0x20, CM_IDLEST_WKUP, 5); /* some issue here */
+
+ __raw_writel(WD_UNLOCK1, WD2_BASE + WSPR);
+ wait_for_command_complete(WD2_BASE);
+ __raw_writel(WD_UNLOCK2, WD2_BASE + WSPR);
+}
+
+/**********************************************
+ * Routine: dram_init
+ * Description: sets uboots idea of sdram size
+ **********************************************/
+int dram_init(void)
+{
+ return 0;
+}
+
+/*****************************************************************
+ * Routine: peripheral_enable
+ * Description: Enable the clks & power for perifs (GPT2, UART1,...)
+ ******************************************************************/
+void per_clocks_enable(void)
+{
+ /* Enable GP2 timer. */
+ sr32(CM_CLKSEL_PER, 0, 1, 0x1); /* GPT2 = sys clk */
+ sr32(CM_ICLKEN_PER, 3, 1, 0x1); /* ICKen GPT2 */
+ sr32(CM_FCLKEN_PER, 3, 1, 0x1); /* FCKen GPT2 */
+
+#ifdef CFG_NS16550
+ /* UART 3 Clocks */
+ sr32(CM_FCLKEN_PER, 11, 1, 0x1);
+ sr32(CM_ICLKEN_PER, 11, 1, 0x1);
+
+#endif
+
+#ifdef CONFIG_DRIVER_OMAP34XX_I2C
+ /* I2C clocks */
+ sr32(CM_FCLKEN1_CORE, 15, 3, 0x7);
+ sr32(CM_ICLKEN1_CORE, 15, 3, 0x7); /* I2C1,2,3 = on */
+#endif
+
+ /* Enable the ICLK for 32K Sync Timer as its used in udelay */
+ sr32(CM_ICLKEN_WKUP, 2, 1, 0x1);
+
+ /* GPIO1 clocks */
+ sr32(CM_FCLKEN_PER, 13, 1, 0x1);
+ sr32(CM_ICLKEN_PER, 13, 1, 0x1);
+
+ /* MMC1 clocks */
+ sr32(CM_FCLKEN1_CORE, 24, 1, 0x1);
+ sr32(CM_ICLKEN1_CORE, 24, 1, 0x1);
+
+ /* MMC2 clocks */
+ sr32(CM_FCLKEN1_CORE, 25, 1, 0x1);
+ sr32(CM_ICLKEN1_CORE, 25, 1, 0x1);
+
+ delay(1000);
+}
+
+#define MUX_VAL(OFFSET,VALUE)\
+ __raw_writew((VALUE), OMAP34XX_CTRL_BASE + (OFFSET));
+
+#define CP(x) (CONTROL_PADCONF_##x)
+/*
+ * IEN - Input Enable
+ * IDIS - Input Disable
+ * PTD - Pull type Down
+ * PTU - Pull type Up
+ * DIS - Pull type selection is inactive
+ * EN - Pull type selection is active
+ * M0 - Mode 0
+ * The commented string gives the final mux configuration for that pin
+ */
+
+#define MUX_SNIPER()\
+ MUX_VAL(CP(GPMC_A4), (IDIS | PTU | DIS | M4)) /* GPIO_37: CAM_SUBPM_EN */\
+ MUX_VAL(CP(MMC1_CLK), (IEN | PTU | EN | M0)) /* MMC1_CLK */\
+ MUX_VAL(CP(MMC1_CMD), (IEN | PTU | EN | M0)) /* MMC1_CMD */\
+ MUX_VAL(CP(MMC1_DAT0), (IEN | PTU | EN | M0)) /* MMC1_DAT0 */\
+ MUX_VAL(CP(MMC1_DAT1), (IEN | PTU | EN | M0)) /* MMC1_DAT1 */\
+ MUX_VAL(CP(MMC1_DAT2), (IEN | PTU | EN | M0)) /* MMC1_DAT2 */\
+ MUX_VAL(CP(MMC1_DAT3), (IEN | PTU | EN | M0)) /* MMC1_DAT3 */\
+ MUX_VAL(CP(MMC1_DAT4), (IEN | PTU | EN | M0)) /* MMC1_DAT4 */\
+ MUX_VAL(CP(MMC1_DAT5), (IEN | PTU | EN | M0)) /* MMC1_DAT5 */\
+ MUX_VAL(CP(MMC1_DAT6), (IEN | PTU | EN | M0)) /* MMC1_DAT6 */\
+ MUX_VAL(CP(MMC1_DAT7), (IEN | PTU | EN | M0)) /* MMC1_DAT7 */\
+ MUX_VAL(CP(MMC2_CLK), (IEN | PTU | EN | M0)) /* MMC2_CLK */\
+ MUX_VAL(CP(MMC2_CMD), (IEN | PTU | EN | M0)) /* MMC2_CMD */\
+ MUX_VAL(CP(MMC2_DAT0), (IEN | PTU | EN | M0)) /* MMC2_DAT0 */\
+ MUX_VAL(CP(MMC2_DAT1), (IEN | PTU | EN | M0)) /* MMC2_DAT1 */\
+ MUX_VAL(CP(MMC2_DAT2), (IEN | PTU | EN | M0)) /* MMC2_DAT2 */\
+ MUX_VAL(CP(MMC2_DAT3), (IEN | PTU | EN | M0)) /* MMC2_DAT3 */\
+ MUX_VAL(CP(MMC2_DAT4), (IEN | PTU | EN | M0)) /* MMC2_DAT4 */\
+ MUX_VAL(CP(MMC2_DAT5), (IEN | PTU | EN | M0)) /* MMC2_DAT5 */\
+ MUX_VAL(CP(MMC2_DAT6), (IEN | PTU | EN | M0)) /* MMC2_DAT6 */\
+ MUX_VAL(CP(MMC2_DAT7), (IEN | PTU | EN | M0)) /* MMC2_DAT7 */\
+ MUX_VAL(CP(UART3_CTS_RCTX), (IEN | PTD | EN | M0)) /* UART3_CTS_RCTX */\
+ MUX_VAL(CP(UART3_RTS_SD), (IDIS | PTD | DIS | M0)) /* UART3_RTS_SD */\
+ MUX_VAL(CP(UART3_RX_IRRX), (IEN | PTD | DIS | M0)) /* UART3_RX_IRRX */\
+ MUX_VAL(CP(UART3_TX_IRTX), (IDIS | PTD | DIS | M0)) /* UART3_TX_IRTX */\
+ MUX_VAL(CP(I2C1_SCL), (IEN | PTU | EN | M0)) /* I2C1_SCL */\
+ MUX_VAL(CP(I2C1_SDA), (IEN | PTU | EN | M0)) /* I2C1_SDA */\
+ MUX_VAL(CP(I2C3_SCL), (IEN | PTU | DIS | M0)) /* I2C3_SCL */\
+ MUX_VAL(CP(I2C3_SDA), (IEN | PTU | DIS | M0)) /* I2C3_SDA */
+
+/**********************************************************
+ * Routine: set_muxconf_regs
+ * Description: Setting up the configuration Mux registers
+ * specific to the hardware. Many pins need
+ * to be moved from protect to primary mode.
+ *********************************************************/
+void set_muxconf_regs(void)
+{
+ MUX_SNIPER();
+}
+
+/**********************************************************
+ * Routine: nand+_init
+ * Description: Set up nand for nand and jffs2 commands
+ *********************************************************/
+
+int nand_init(void)
+{
+ return 0;
+}
+
+/* optionally do something like blinking LED */
+void board_hang(void)
+{
+ return;
+}
+
+/******************************************************************************
+ * Dummy function to handle errors for EABI incompatibility
+ *****************************************************************************/
+void raise(void)
+{
+}
+
+/******************************************************************************
+ * Dummy function to handle errors for EABI incompatibility
+ *****************************************************************************/
+void abort(void)
+{
+}
diff --git a/board/sniper/x-load.lds b/board/sniper/x-load.lds
new file mode 100644
index 0000000..5f352d3
--- /dev/null
+++ b/board/sniper/x-load.lds
@@ -0,0 +1,54 @@
+/*
+ * November 2006 - Changed to support 3430sdp device
+ * Copyright (c) 2004-2006 Texas Instruments
+ *
+ * (C) Copyright 2002
+ * Gary Jennejohn, DENX Software Engineering, <gj@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_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
+OUTPUT_ARCH(arm)
+ENTRY(_start)
+SECTIONS
+{
+ . = 0x00000000;
+
+ . = ALIGN(4);
+ .text :
+ {
+ cpu/omap3/start.o (.text)
+ *(.text)
+ }
+
+ . = ALIGN(4);
+ .rodata : { *(.rodata) }
+
+ . = ALIGN(4);
+ .data : { *(.data) }
+
+ . = ALIGN(4);
+ .got : { *(.got) }
+
+ . = ALIGN(4);
+ __bss_start = .;
+ .bss : { *(.bss) }
+ _end = .;
+}