diff options
Diffstat (limited to 'uart-loader/board')
| m--------- | uart-loader | 0 | ||||
| -rw-r--r-- | uart-loader/board/omap3430labrador/Makefile | 47 | ||||
| -rw-r--r-- | uart-loader/board/omap3430labrador/config.mk | 22 | ||||
| -rw-r--r-- | uart-loader/board/omap3430labrador/omap3430labrador.c | 875 | ||||
| -rw-r--r-- | uart-loader/board/omap3430labrador/platform.S | 218 |
5 files changed, 1162 insertions, 0 deletions
diff --git a/uart-loader b/uart-loader deleted file mode 160000 -Subproject eb8b047c29a2027fbdd841cd1289fa27ddb22d7 diff --git a/uart-loader/board/omap3430labrador/Makefile b/uart-loader/board/omap3430labrador/Makefile new file mode 100644 index 0000000..c03134c --- /dev/null +++ b/uart-loader/board/omap3430labrador/Makefile @@ -0,0 +1,47 @@ +# +# (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 $(TOPDIR)/config.mk + +LIB = lib$(BOARD).a + +OBJS := omap3430labrador.o +SOBJS := platform.o + +$(LIB): $(OBJS) $(SOBJS) + $(AR) crv $@ $^ + +clean: + rm -f $(SOBJS) $(OBJS) + +distclean: clean + rm -f $(LIB) core *.bak .depend + +######################################################################### + +.depend: Makefile $(SOBJS:.o=.S) $(OBJS:.o=.c) + $(CC) -M $(CPPFLAGS) $(SOBJS:.o=.S) $(OBJS:.o=.c) > $@ + +-include .depend + +######################################################################### diff --git a/uart-loader/board/omap3430labrador/config.mk b/uart-loader/board/omap3430labrador/config.mk new file mode 100644 index 0000000..d6ad6c5 --- /dev/null +++ b/uart-loader/board/omap3430labrador/config.mk @@ -0,0 +1,22 @@ +# +# (C) Copyright 2006 +# Texas Instruments, <www.ti.com> +# +# SDP3430 board uses OMAP3430 (ARM-CortexA8) cpu +# see http://www.ti.com/ for more information on Texas Instruments +# +# SDP3430 has 1 bank of 32MB or 128MB mDDR-SDRAM on CS0 +# SDP3430 has 1 bank of 32MB or 00MB mDDR-SDRAM on CS1 +# Physical Address: +# 8000'0000 (bank0) +# A000'0000 (bank1) - re-mappable below CS1 + +# For use if you want X-Loader to relocate from SRAM to DDR +#TEXT_BASE = 0x80e80000 + +# For XIP in 64K of SRAM or debug (GP device has it all availabe) +# SRAM 40200000-4020FFFF base +# initial stack at 0x4020fffc used in s_init (below xloader). +# The run time stack is (above xloader, 2k below) +# If any globals exist there needs to be room for them also +TEXT_BASE = 0x40208800 diff --git a/uart-loader/board/omap3430labrador/omap3430labrador.c b/uart-loader/board/omap3430labrador/omap3430labrador.c new file mode 100644 index 0000000..33361f4 --- /dev/null +++ b/uart-loader/board/omap3430labrador/omap3430labrador.c @@ -0,0 +1,875 @@ +/* + * (C) Copyright 2006-2009 + * Texas Instruments, <www.ti.com> + * Jian Zhang <jzhang@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 <common.h> +#include <asm/arch/cpu.h> +#include <asm/arch/bits.h> +#include <asm/arch/mux.h> +#include <asm/arch/sys_proto.h> +#include <asm/arch/sys_info.h> +#include <asm/arch/rev.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; +}; + +#ifdef CONFIG_OMAP36XX +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; +#define MAX_SIL_INDEX 1 +#else +typedef struct dpll_param dpll_per_param; +#define MAX_SIL_INDEX 3 +#endif + +typedef struct dpll_param dpll_param; + +/* Following functions are exported from lowlevel_init.S */ +extern dpll_param * get_mpu_dpll_param(void); +extern dpll_param * get_core_dpll_param(void); +extern dpll_param * get_per_dpll_param(void); + +#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)); +} + +/***************************************** + * Routine: board_init + * Description: Early hardware init. + *****************************************/ +int board_init (void) +{ + return 0; +} + +/************************************************************* + * get_device_type(): tell if GP/HS/EMU/TST + *************************************************************/ +u32 get_device_type(void) +{ + int mode; + mode = __raw_readl(CONTROL_STATUS) & (DEVICE_MASK); + return(mode >>= 8); +} + +/***************************************************************** + * sr32 - clear & set a value in a bit range for a 32 bit address + *****************************************************************/ +void sr32(u32 addr, u32 start_bit, u32 num_bits, u32 value) +{ + u32 tmp, msk = 0; + msk = 1 << num_bits; + --msk; + tmp = __raw_readl(addr) & ~(msk << start_bit); + tmp |= value << start_bit; + __raw_writel(tmp, addr); +} + +/********************************************************************* + * wait_on_value() - common routine to allow waiting for changes in + * volatile regs. + *********************************************************************/ +u32 wait_on_value(u32 read_bit_mask, u32 match_value, u32 read_addr, u32 bound) +{ + u32 i = 0, val; + do { + ++i; + val = __raw_readl(read_addr) & read_bit_mask; + if (val == match_value) + return (1); + if (i == bound) + return (0); + } while (1); +} + +#ifdef CFG_3430SDRAM_DDR +/********************************************************************* + * config_3430sdram_ddr() - Init DDR on 3430SDP dev board. + *********************************************************************/ +void config_3430sdram_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); + + /* set timing */ + __raw_writel(SDP_SDRC_ACTIM_CTRLA_0, SDRC_ACTIM_CTRLA_0); + __raw_writel(SDP_SDRC_ACTIM_CTRLB_0, SDRC_ACTIM_CTRLB_0); + __raw_writel(SDP_SDRC_RFR_CTRL, SDRC_RFR_CTRL_0); + + /* 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); +#ifdef CONFIG_2GBDDR + __raw_writel(SDP_SDRC_MDCFG_0_DDR, SDRC_MCFG_1); + + /* set timing */ + __raw_writel(SDP_SDRC_ACTIM_CTRLA_0, SDRC_ACTIM_CTRLA_1); + __raw_writel(SDP_SDRC_ACTIM_CTRLB_0, SDRC_ACTIM_CTRLB_1); + __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_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); + + /* Configure cs1 to be just behind cs0 - 128meg boundary */ +#if defined(CONFIG_3430ZOOM2_512M) || \ + defined(CONFIG_3630ZOOM3) || defined(CONFIG_3630SDP) + /* 2 * 128M = 256M for cs1 */ + __raw_writel(0x2, SDRC_CS_CFG); +#elif defined(CONFIG_3630SDP_1G) || defined(CONFIG_3630ZOOM3_1G) + /* 4 * 128M = 512M for cs1 */ + __raw_writel(0x4, SDRC_CS_CFG); +#else + /* 1 * 128M = 128M for cs1 */ + __raw_writel(0x1, SDRC_CS_CFG); +#endif + + /* set up dllB-CS1 */ + __raw_writel(SDP_SDRC_DLLAB_CTRL, SDRC_DLLB_CTRL); + delay(0x2000); /* give time to lock */ +#endif + + /* set up dllA-CS0 */ + __raw_writel(SDP_SDRC_DLLAB_CTRL, SDRC_DLLA_CTRL); + delay(0x2000); /* give time to lock */ + +} +#endif // CFG_3430SDRAM_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, val; + + val = __raw_readl(PRM_CLKSRC_CTRL); + /* If SYS_CLK is being divided by 2, remove for now */ + val = (val & (~BIT7)) | BIT6; + __raw_writel(val, PRM_CLKSRC_CTRL); + + /* 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 */ + + /* 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); +} + +/****************************************************************************** + * get_sys_clkin_sel() - returns the sys_clkin_sel field value based on + * -- input oscillator clock frequency. + * + *****************************************************************************/ +void get_sys_clkin_sel(u32 osc_clk, u32 *sys_clkin_sel) +{ + if(osc_clk == S38_4M) + *sys_clkin_sel= 4; + else if(osc_clk == S26M) + *sys_clkin_sel = 3; + else if(osc_clk == S19_2M) + *sys_clkin_sel = 2; + else if(osc_clk == S13M) + *sys_clkin_sel = 1; + else if(osc_clk == S12M) + *sys_clkin_sel = 0; +} + +static dpll_per_param *_get_per_dpll(int clk_index) +{ + dpll_per_param *ret = (dpll_per_param *)get_per_dpll_param(); + ret += clk_index; + return ret; +} + +static dpll_param *_get_mpu_dpll(int clk_index, int sil_index) +{ + dpll_param *ret = (dpll_param *)get_mpu_dpll_param(); + ret += (MAX_SIL_INDEX * clk_index) + sil_index; + return ret; +} + +#ifdef CONFIG_OMAP36XX + +#define PER_M_BITS 12 +#define PER_M2_BITS 5 +#define PER_M3_BITS 6 +#define PER_M4_BITS 6 +#define PER_M5_BITS 6 +#define PER_M6_BITS 6 + +static void per_dpll_init_36XX(int clk_index) +{ + dpll_per_param *per; + + per = _get_per_dpll(clk_index); + + sr32(CM_CLKEN_PLL, 16, 3, PLL_STOP); + wait_on_value(BIT1, 0, CM_IDLEST_CKGEN, LDELAY); + + sr32(CM_CLKSEL2_PLL, 8, PER_M_BITS, per->m); + sr32(CM_CLKSEL2_PLL, 0, 7, per->n); + sr32(PRM_CLKSRC_CTRL, 8, 1, per->clkin); + sr32(CM_CLKSEL2_PLL, 24, 7, per->sd); + sr32(CM_CLKSEL2_PLL, 21, 3, per->dco); + sr32(CM_CLKSEL3_PLL, 0, PER_M2_BITS, per->m2); + sr32(CM_CLKSEL_DSS, 8, PER_M3_BITS, per->m3); + sr32(CM_CLKSEL_DSS, 0, PER_M4_BITS, per->m4); + sr32(CM_CLKSEL_CAM, 0, PER_M5_BITS, per->m5); + sr32(CM_CLKSEL1_EMU, 24, PER_M6_BITS, per->m6); + sr32(CM_CLKSEL_CORE, 12, 2, per->m2div); + + sr32(CM_CLKEN_PLL, 16, 3, PLL_LOCK); /* lock mode */ + wait_on_value(BIT1, 2, CM_IDLEST_CKGEN, LDELAY); +} + +static void mpu_dpll_init_36XX(int clk_index, int sil_index) +{ + dpll_param *mpu; + + mpu = _get_mpu_dpll(clk_index, sil_index); + + /* MPU DPLL (unlocked already) */ + sr32(CM_CLKSEL1_PLL_MPU, 8, 11, mpu->m); + sr32(CM_CLKSEL1_PLL_MPU, 0, 7, mpu->n); + sr32(CM_CLKSEL2_PLL_MPU, 0, 5, mpu->m2); + + sr32(CM_CLKEN_PLL_MPU, 0, 3, PLL_LOCK); /* lock mode */ + wait_on_value(BIT0, 1, CM_IDLEST_PLL_MPU, LDELAY); +} + +#else /* 34xx */ + +#define PER_M_BITS 11 +#define PER_M2_BITS 5 +#define PER_M3_BITS 5 +#define PER_M4_BITS 5 +#define PER_M5_BITS 5 +#define PER_M6_BITS 5 + +static void per_dpll_init_34XX(int clk_index) +{ + dpll_per_param *dpll_param_p; + + /* Getting the base address to PER DPLL param table*/ + dpll_param_p = (dpll_param *)get_per_dpll_param(); + /* Moving it to the right sysclk base */ + dpll_param_p = dpll_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_CLKSEL1_EMU, 24, 5, PER_M6X2); /* set M6 */ + sr32(CM_CLKSEL_CAM, 0, 5, PER_M5X2); /* set M5 */ + sr32(CM_CLKSEL_DSS, 0, 5, PER_M4X2); /* set M4 */ + sr32(CM_CLKSEL_DSS, 8, 5, PER_M3X2); /* set M3 */ + sr32(CM_CLKSEL3_PLL, 0, 5, dpll_param_p->m2); /* set M2 */ + sr32(CM_CLKSEL2_PLL, 8, 11, dpll_param_p->m); /* set m */ + sr32(CM_CLKSEL2_PLL, 0, 7, dpll_param_p->n); /* set n */ + sr32(CM_CLKEN_PLL, 20, 4, dpll_param_p->fsel);/* FREQSEL */ + sr32(CM_CLKEN_PLL, 16, 3, PLL_LOCK); /* lock mode */ + wait_on_value(BIT1, 2, CM_IDLEST_CKGEN, LDELAY); +} + +static void mpu_dpll_init_34XX(int clk_index, int sil_index) +{ + dpll_param *dpll_param_p; + + /* 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 + MAX_SIL_INDEX*clk_index + sil_index; + /* MPU DPLL (unlocked already) */ + sr32(CM_CLKSEL2_PLL_MPU, 0, 5, dpll_param_p->m2); /* Set M2 */ + 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_CLKEN_PLL_MPU, 4, 4, dpll_param_p->fsel); /* FREQSEL */ + sr32(CM_CLKEN_PLL_MPU, 0, 3, PLL_LOCK); /* lock mode */ + wait_on_value(BIT0, 1, CM_IDLEST_PLL_MPU, LDELAY); +} + +#endif + +/****************************************************************************** + * 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_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 */ + +/* Using 26MHz divider straight into OMAP saves ~2ms on OFF mode restore */ +#if 0 + /* If the input clock is greater than 19.2M always divide/2 */ + if(sys_clkin_sel > 2) { + sr32(PRM_CLKSRC_CTRL, 6, 2, 2);/* input clock divider */ + clk_index = sys_clkin_sel/2; + } else +#endif + { + 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. + */ +#ifdef CONFIG_OMAP36XX + sil_index = 0; +#else + if(cpu_is_3410()) + sil_index = 2; + else { + if(get_cpu_rev() == CPU_3XX_ES10) + sil_index = 0; + else if(get_cpu_rev() >= CPU_3XX_ES20) + sil_index = 1; + } +#endif + + /* 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 + MAX_SIL_INDEX*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 ES1 only */ + 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); + + /* PER DPLL */ +#ifdef CONFIG_OMAP36XX + per_dpll_init_36XX(clk_index); + mpu_dpll_init_36XX(clk_index, sil_index); +#else + per_dpll_init_34XX(clk_index); + mpu_dpll_init_34XX(clk_index, sil_index); +#endif + + /* 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: secure_unlock + * Description: Setup security registers for access + * (GP Device only) + *****************************************/ +void secure_unlock(void) +{ + /* Permission values for registers -Full fledged permissions to all */ + #define UNLOCK_1 0xFFFFFFFF + #define UNLOCK_2 0x00000000 + #define UNLOCK_3 0x0000FFFF + /* Protection Module Register Target APE (PM_RT)*/ + __raw_writel(UNLOCK_1, RT_REQ_INFO_PERMISSION_1); + __raw_writel(UNLOCK_1, RT_READ_PERMISSION_0); + __raw_writel(UNLOCK_1, RT_WRITE_PERMISSION_0); + __raw_writel(UNLOCK_2, RT_ADDR_MATCH_1); + + __raw_writel(UNLOCK_3, GPMC_REQ_INFO_PERMISSION_0); + __raw_writel(UNLOCK_3, GPMC_READ_PERMISSION_0); + __raw_writel(UNLOCK_3, GPMC_WRITE_PERMISSION_0); + + __raw_writel(UNLOCK_3, OCM_REQ_INFO_PERMISSION_0); + __raw_writel(UNLOCK_3, OCM_READ_PERMISSION_0); + __raw_writel(UNLOCK_3, OCM_WRITE_PERMISSION_0); + __raw_writel(UNLOCK_2, OCM_ADDR_MATCH_2); + + __raw_writel(UNLOCK_1, SMS_RG_ATT0); /* SDRC region 0 public */ +} + +/********************************************************** + * Routine: try_unlock_sram() + * Description: If chip is GP type, unlock the SRAM for + * general use. + ***********************************************************/ +void try_unlock_memory(void) +{ + int mode; + + /* if GP device unlock device SRAM for general use */ + /* secure code breaks for Secure/Emulation device - HS/E/T*/ + mode = get_device_type(); + if (mode == GP_DEVICE) { + secure_unlock(); + } + return; +} + +/********************************************************** + * 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(); +#ifdef CONFIG_3430_AS_3410 + /* setup the scalability control register for + * 3430 to work in 3410 mode + */ + __raw_writel(0x5ABF,CONTROL_SCALABLE_OMAP_OCP); +#endif + try_unlock_memory(); + set_muxconf_regs(); + delay(100); + prcm_init(); + per_clocks_enable(); + config_3430sdram_ddr(); +} + +/******************************************************* + * Routine: misc_init_r + * Description: Init ethernet (done here so udelay works) + ********************************************************/ +int misc_init_r (void) +{ + 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 +////#ifdef CONFIG_SERIAL3 + sr32(CM_FCLKEN_PER, 11, 1, 0x1); + sr32(CM_ICLKEN_PER, 11, 1, 0x1); +////#else + /* Enable UART1 clocks */ + sr32(CM_FCLKEN1_CORE, 13, 1, 0x1); + sr32(CM_ICLKEN1_CORE, 13, 5, 0x1); +////#endif +#endif + // hns: enable clock for GPIO2-6 http://e2e.ti.com/support/dsp/omap_applications_processors/f/447/p/65520/236545.aspx + sr32(CM_FCLKEN_PER, 13, 5, 0x1f); + sr32(CM_ICLKEN_PER, 13, 5, 0x1f); + // hns: and GPIO1 + sr32(CM_FCLKEN_WKUP, 3, 1, 0x1); + sr32(CM_ICLKEN_WKUP, 3, 1, 0x1); + delay(1000); +} + +/* Set MUX for UART, GPMC, SDRC, GPIO */ + +#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_DEFAULT()\ + /*SDRC*/\ + MUX_VAL(CP(SDRC_D0), (IEN | PTD | DIS | M0)) /*SDRC_D0*/\ + MUX_VAL(CP(SDRC_D1), (IEN | PTD | DIS | M0)) /*SDRC_D1*/\ + MUX_VAL(CP(SDRC_D2), (IEN | PTD | DIS | M0)) /*SDRC_D2*/\ + MUX_VAL(CP(SDRC_D3), (IEN | PTD | DIS | M0)) /*SDRC_D3*/\ + MUX_VAL(CP(SDRC_D4), (IEN | PTD | DIS | M0)) /*SDRC_D4*/\ + MUX_VAL(CP(SDRC_D5), (IEN | PTD | DIS | M0)) /*SDRC_D5*/\ + MUX_VAL(CP(SDRC_D6), (IEN | PTD | DIS | M0)) /*SDRC_D6*/\ + MUX_VAL(CP(SDRC_D7), (IEN | PTD | DIS | M0)) /*SDRC_D7*/\ + MUX_VAL(CP(SDRC_D8), (IEN | PTD | DIS | M0)) /*SDRC_D8*/\ + MUX_VAL(CP(SDRC_D9), (IEN | PTD | DIS | M0)) /*SDRC_D9*/\ + MUX_VAL(CP(SDRC_D10), (IEN | PTD | DIS | M0)) /*SDRC_D10*/\ + MUX_VAL(CP(SDRC_D11), (IEN | PTD | DIS | M0)) /*SDRC_D11*/\ + MUX_VAL(CP(SDRC_D12), (IEN | PTD | DIS | M0)) /*SDRC_D12*/\ + MUX_VAL(CP(SDRC_D13), (IEN | PTD | DIS | M0)) /*SDRC_D13*/\ + MUX_VAL(CP(SDRC_D14), (IEN | PTD | DIS | M0)) /*SDRC_D14*/\ + MUX_VAL(CP(SDRC_D15), (IEN | PTD | DIS | M0)) /*SDRC_D15*/\ + MUX_VAL(CP(SDRC_D16), (IEN | PTD | DIS | M0)) /*SDRC_D16*/\ + MUX_VAL(CP(SDRC_D17), (IEN | PTD | DIS | M0)) /*SDRC_D17*/\ + MUX_VAL(CP(SDRC_D18), (IEN | PTD | DIS | M0)) /*SDRC_D18*/\ + MUX_VAL(CP(SDRC_D19), (IEN | PTD | DIS | M0)) /*SDRC_D19*/\ + MUX_VAL(CP(SDRC_D20), (IEN | PTD | DIS | M0)) /*SDRC_D20*/\ + MUX_VAL(CP(SDRC_D21), (IEN | PTD | DIS | M0)) /*SDRC_D21*/\ + MUX_VAL(CP(SDRC_D22), (IEN | PTD | DIS | M0)) /*SDRC_D22*/\ + MUX_VAL(CP(SDRC_D23), (IEN | PTD | DIS | M0)) /*SDRC_D23*/\ + MUX_VAL(CP(SDRC_D24), (IEN | PTD | DIS | M0)) /*SDRC_D24*/\ + MUX_VAL(CP(SDRC_D25), (IEN | PTD | DIS | M0)) /*SDRC_D25*/\ + MUX_VAL(CP(SDRC_D26), (IEN | PTD | DIS | M0)) /*SDRC_D26*/\ + MUX_VAL(CP(SDRC_D27), (IEN | PTD | DIS | M0)) /*SDRC_D27*/\ + MUX_VAL(CP(SDRC_D28), (IEN | PTD | DIS | M0)) /*SDRC_D28*/\ + MUX_VAL(CP(SDRC_D29), (IEN | PTD | DIS | M0)) /*SDRC_D29*/\ + MUX_VAL(CP(SDRC_D30), (IEN | PTD | DIS | M0)) /*SDRC_D30*/\ + MUX_VAL(CP(SDRC_D31), (IEN | PTD | DIS | M0)) /*SDRC_D31*/\ + MUX_VAL(CP(SDRC_CLK), (IEN | PTD | DIS | M0)) /*SDRC_CLK*/\ + MUX_VAL(CP(SDRC_DQS0), (IEN | PTD | DIS | M0)) /*SDRC_DQS0*/\ + MUX_VAL(CP(SDRC_DQS1), (IEN | PTD | DIS | M0)) /*SDRC_DQS1*/\ + MUX_VAL(CP(SDRC_DQS2), (IEN | PTD | DIS | M0)) /*SDRC_DQS2*/\ + MUX_VAL(CP(SDRC_DQS3), (IEN | PTD | DIS | M0)) /*SDRC_DQS3*/\ + /*GPMC*/\ + MUX_VAL(CP(GPMC_A1), (IDIS | PTD | DIS | M0)) /*GPMC_A1*/\ + MUX_VAL(CP(GPMC_A2), (IDIS | PTD | DIS | M0)) /*GPMC_A2*/\ + MUX_VAL(CP(GPMC_A3), (IDIS | PTD | DIS | M0)) /*GPMC_A3*/\ + MUX_VAL(CP(GPMC_A4), (IDIS | PTD | DIS | M0)) /*GPMC_A4*/\ + MUX_VAL(CP(GPMC_A5), (IDIS | PTD | DIS | M0)) /*GPMC_A5*/\ + MUX_VAL(CP(GPMC_A6), (IDIS | PTD | DIS | M0)) /*GPMC_A6*/\ + MUX_VAL(CP(GPMC_A7), (IDIS | PTD | DIS | M0)) /*GPMC_A7*/\ + MUX_VAL(CP(GPMC_A8), (IDIS | PTD | DIS | M0)) /*GPMC_A8*/\ + MUX_VAL(CP(GPMC_A9), (IDIS | PTD | DIS | M0)) /*GPMC_A9*/\ + MUX_VAL(CP(GPMC_A10), (IDIS | PTD | DIS | M0)) /*GPMC_A10*/\ + MUX_VAL(CP(GPMC_D0), (IEN | PTD | DIS | M0)) /*GPMC_D0*/\ + MUX_VAL(CP(GPMC_D1), (IEN | PTD | DIS | M0)) /*GPMC_D1*/\ + MUX_VAL(CP(GPMC_D2), (IEN | PTD | DIS | M0)) /*GPMC_D2*/\ + MUX_VAL(CP(GPMC_D3), (IEN | PTD | DIS | M0)) /*GPMC_D3*/\ + MUX_VAL(CP(GPMC_D4), (IEN | PTD | DIS | M0)) /*GPMC_D4*/\ + MUX_VAL(CP(GPMC_D5), (IEN | PTD | DIS | M0)) /*GPMC_D5*/\ + MUX_VAL(CP(GPMC_D6), (IEN | PTD | DIS | M0)) /*GPMC_D6*/\ + MUX_VAL(CP(GPMC_D7), (IEN | PTD | DIS | M0)) /*GPMC_D7*/\ + MUX_VAL(CP(GPMC_D8), (IEN | PTD | DIS | M0)) /*GPMC_D8*/\ + MUX_VAL(CP(GPMC_D9), (IEN | PTD | DIS | M0)) /*GPMC_D9*/\ + MUX_VAL(CP(GPMC_D10), (IEN | PTD | DIS | M0)) /*GPMC_D10*/\ + MUX_VAL(CP(GPMC_D11), (IEN | PTD | DIS | M0)) /*GPMC_D11*/\ + MUX_VAL(CP(GPMC_D12), (IEN | PTD | DIS | M0)) /*GPMC_D12*/\ + MUX_VAL(CP(GPMC_D13), (IEN | PTD | DIS | M0)) /*GPMC_D13*/\ + MUX_VAL(CP(GPMC_D14), (IEN | PTD | DIS | M0)) /*GPMC_D14*/\ + MUX_VAL(CP(GPMC_D15), (IEN | PTD | DIS | M0)) /*GPMC_D15*/\ + MUX_VAL(CP(GPMC_nCS0), (IDIS | PTU | EN | M0)) /*GPMC_nCS0*/\ + MUX_VAL(CP(GPMC_nCS1), (IDIS | PTU | EN | M0)) /*GPMC_nCS1*/\ + MUX_VAL(CP(GPMC_nCS2), (IDIS | PTU | EN | M0)) /*GPMC_nCS2*/\ + MUX_VAL(CP(GPMC_nCS3), (IDIS | PTU | EN | M0)) /*GPMC_nCS3*/\ + MUX_VAL(CP(GPMC_nCS4), (IDIS | PTU | EN | M0)) /*GPMC_nCS4 lab*/\ + MUX_VAL(CP(GPMC_nCS5), (IDIS | PTD | DIS | M0)) /*GPMC_nCS5 lab*/\ +MUX_VAL(CP(GPMC_nCS6), (IEN | PTD | EN | M4)) /*GPT_PWM11/GPIO57*/\ + MUX_VAL(CP(GPMC_nCS7), (IEN | PTU | EN | M1)) /*GPMC_IO_DIR lab*/\ + MUX_VAL(CP(GPMC_CLK), (IDIS | PTD | DIS | M0)) /*GPMC_CLK*/\ + MUX_VAL(CP(GPMC_nADV_ALE), (IDIS | PTD | DIS | M0)) /*GPMC_nADV_ALE*/\ + MUX_VAL(CP(GPMC_nOE), (IDIS | PTD | DIS | M0)) /*GPMC_nOE*/\ + MUX_VAL(CP(GPMC_nWE), (IDIS | PTD | DIS | M0)) /*GPMC_nWE*/\ + MUX_VAL(CP(GPMC_nBE0_CLE), (IDIS | PTD | DIS | M0)) /*GPMC_nBE0_CLE*/\ + MUX_VAL(CP(GPMC_nBE1), (IEN | PTD | DIS | M0)) /*GPMC_nBE1 lab*/\ + MUX_VAL(CP(GPMC_nWP), (IEN | PTD | DIS | M0)) /*GPMC_nWP*/\ + MUX_VAL(CP(GPMC_WAIT0), (IEN | PTU | EN | M0)) /*GPMC_WAIT0*/\ + MUX_VAL(CP(GPMC_WAIT1), (IEN | PTU | EN | M0)) /*GPMC_WAIT1*/\ + MUX_VAL(CP(GPMC_WAIT2), (IEN | PTU | EN | M0)) /*gpmc_nWait lab*/\ + MUX_VAL(CP(GPMC_WAIT3), (IEN | PTU | EN | M0)) /*gpmc_nWait lab*/\ + MUX_VAL(CP(DSS_DATA18), (IDIS | PTD | DIS | M0)) /*DSS_DATA18*/\ + MUX_VAL(CP(DSS_DATA19), (IDIS | PTD | DIS | M0)) /*DSS_DATA19*/\ + MUX_VAL(CP(DSS_DATA20), (IDIS | PTD | DIS | M0)) /*DSS_DATA20*/\ + MUX_VAL(CP(CAM_XCLKB), (IDIS | PTD | DIS | M0)) /*CAM_XCLKB*/\ + MUX_VAL(CP(CAM_WEN), (IEN | PTD | DIS | M4)) /*GPIO_167*/\ + MUX_VAL(CP(UART1_TX), (IDIS | PTD | DIS | M0)) /*UART1_TX*/\ + MUX_VAL(CP(UART1_RTS), (IDIS | PTD | DIS | M0)) /*UART1_RTS*/\ + MUX_VAL(CP(UART1_CTS), (IEN | PTU | DIS | M0)) /*UART1_CTS*/\ + MUX_VAL(CP(UART1_RX), (IEN | PTD | DIS | M0)) /*UART1_RX*/\ + MUX_VAL(CP(McBSP1_DX), (IEN | PTD | DIS | M4)) /*GPIO_158*/\ + MUX_VAL(CP(SYS_32K), (IEN | PTD | DIS | M0)) /*SYS_32K*/\ + MUX_VAL(CP(SYS_BOOT0), (IEN | PTD | DIS | M4)) /*GPIO_2 */\ + MUX_VAL(CP(SYS_BOOT1), (IEN | PTD | DIS | M4)) /*GPIO_3 */\ + MUX_VAL(CP(SYS_BOOT2), (IEN | PTD | DIS | M4)) /*GPIO_4 */\ + MUX_VAL(CP(SYS_BOOT3), (IEN | PTD | DIS | M4)) /*GPIO_5 */\ + MUX_VAL(CP(SYS_BOOT4), (IEN | PTD | DIS | M4)) /*GPIO_6 */\ + MUX_VAL(CP(SYS_BOOT5), (IEN | PTD | DIS | M4)) /*GPIO_7 */\ + MUX_VAL(CP(SYS_BOOT6), (IEN | PTD | DIS | M4)) /*GPIO_8 */\ + MUX_VAL(CP(SYS_CLKOUT1), (IDIS | PTD | DIS | M0)) /*sys_clkout2 lab*/\ + MUX_VAL(CP(SYS_CLKOUT2), (IDIS | PTD | DIS | M0)) /*sys_clkout2 lab*/\ + MUX_VAL(CP(JTAG_nTRST), (IEN | PTD | DIS | M0)) /*JTAG_nTRST*/\ + MUX_VAL(CP(JTAG_TCK), (IEN | PTD | DIS | M0)) /*JTAG_TCK*/\ + MUX_VAL(CP(JTAG_TMS), (IEN | PTD | DIS | M0)) /*JTAG_TMS*/\ + MUX_VAL(CP(JTAG_TDI), (IEN | PTD | DIS | M0)) /*JTAG_TDI*/\ + MUX_VAL(CP(JTAG_EMU0), (IEN | PTD | DIS | M0)) /*JTAG_EMU0*/\ + MUX_VAL(CP(JTAG_EMU1), (IEN | PTD | DIS | M0)) /*JTAG_EMU1*/\ + MUX_VAL(CP(ETK_CLK), (IEN | PTD | DIS | M4)) /*GPIO_12*/\ + MUX_VAL(CP(ETK_CTL), (IEN | PTD | DIS | M4)) /*GPIO_13*/\ + MUX_VAL(CP(ETK_D0 ), (IEN | PTD | DIS | M4)) /*GPIO_14*/\ + MUX_VAL(CP(ETK_D1 ), (IEN | PTD | DIS | M4)) /*GPIO_15*/\ + MUX_VAL(CP(ETK_D2 ), (IEN | PTD | DIS | M4)) /*GPIO_16*/\ + MUX_VAL(CP(ETK_D10), (IEN | PTD | DIS | M4)) /*GPIO_24*/\ + MUX_VAL(CP(ETK_D11), (IEN | PTD | DIS | M4)) /*GPIO_25*/\ + MUX_VAL(CP(ETK_D12), (IEN | PTD | DIS | M4)) /*GPIO_26*/\ + MUX_VAL(CP(ETK_D13), (IEN | PTD | DIS | M4)) /*GPIO_27*/\ + MUX_VAL(CP(ETK_D14), (IEN | PTD | DIS | M4)) /*GPIO_28*/\ + MUX_VAL(CP(ETK_D15), (IEN | PTD | DIS | M4)) /*GPIO_29*/\ +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(sdrc_cke0), (IDIS | PTU | EN | M0)) /*sdrc_cke0 */\ + MUX_VAL(CP(sdrc_cke1), (IDIS | PTD | DIS | M7)) /*sdrc_cke1 not used*/ +/********************************************************** + * 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_DEFAULT(); +#ifdef CONFIG_2GBDDR + MUX_VAL(CP(sdrc_cke1), (IDIS | PTU | EN | M0)) /*sdrc_cke1 */ +#endif +} + +/********************************************************** + * Routine: nand+_init + * Description: Set up nand for nand and jffs2 commands + *********************************************************/ +int nand_init(void) +{ + /* global settings */ + __raw_writel(0x10, GPMC_SYSCONFIG); /* smart idle */ + __raw_writel(0x0, GPMC_IRQENABLE); /* isr's sources masked */ + __raw_writel(0, GPMC_TIMEOUT_CONTROL);/* timeout disable */ +#ifdef CFG_NAND + __raw_writel(0x001, GPMC_CONFIG); /* set nWP, disable limited addr */ +#endif + + /* setup CS0 for Micron NAND, leave other CS's to u-boot */ + __raw_writel(0 , GPMC_CONFIG7 + GPMC_CONFIG_CS0); + delay(1000); + +#ifdef CFG_NAND + __raw_writel( M_NAND_GPMC_CONFIG1, GPMC_CONFIG1 + GPMC_CONFIG_CS0); + __raw_writel( M_NAND_GPMC_CONFIG2, GPMC_CONFIG2 + GPMC_CONFIG_CS0); + __raw_writel( M_NAND_GPMC_CONFIG3, GPMC_CONFIG3 + GPMC_CONFIG_CS0); + __raw_writel( M_NAND_GPMC_CONFIG4, GPMC_CONFIG4 + GPMC_CONFIG_CS0); + __raw_writel( M_NAND_GPMC_CONFIG5, GPMC_CONFIG5 + GPMC_CONFIG_CS0); + __raw_writel( M_NAND_GPMC_CONFIG6, GPMC_CONFIG6 + GPMC_CONFIG_CS0); + +#elif CFG_ONENAND /* CFG_ONENAND */ + __raw_writel( ONENAND_GPMC_CONFIG1, GPMC_CONFIG1 + GPMC_CONFIG_CS0); + __raw_writel( ONENAND_GPMC_CONFIG2, GPMC_CONFIG2 + GPMC_CONFIG_CS0); + __raw_writel( ONENAND_GPMC_CONFIG3, GPMC_CONFIG3 + GPMC_CONFIG_CS0); + __raw_writel( ONENAND_GPMC_CONFIG4, GPMC_CONFIG4 + GPMC_CONFIG_CS0); + __raw_writel( ONENAND_GPMC_CONFIG5, GPMC_CONFIG5 + GPMC_CONFIG_CS0); + __raw_writel( ONENAND_GPMC_CONFIG6, GPMC_CONFIG6 + GPMC_CONFIG_CS0); +#endif + + /* Enable the GPMC Mapping */ + __raw_writel(( ((OMAP34XX_GPMC_CS0_SIZE & 0xF)<<8) | + ((OMAP34XX_GPMC_CS0_MAP>>24) & 0x3F) | + (1<<6) ), (GPMC_CONFIG7 + GPMC_CONFIG_CS0)); + delay(2000); + +#ifdef CFG_NAND + if (nand_chip()){ +#ifdef CFG_PRINTF + printf("Unsupported Chip!\n"); +#endif + return 1; + } +#elif CFG_ONENAND + if (onenand_chip()){ +#ifdef CFG_PRINTF + printf("OneNAND Unsupported !\n"); +#endif + return 1; + } +#endif + return 0; +} + +/* optionally do something like blinking LED */ +void board_hang (void) +{ + while (1) { + printf("X-Loader hangs\n"); + } +} diff --git a/uart-loader/board/omap3430labrador/platform.S b/uart-loader/board/omap3430labrador/platform.S new file mode 100644 index 0000000..42dfc72 --- /dev/null +++ b/uart-loader/board/omap3430labrador/platform.S @@ -0,0 +1,218 @@ +/* + * 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 + +.globl get_mpu_dpll_param +get_mpu_dpll_param: + adr r0, mpu_dpll_param + mov pc, lr + +.globl get_iva_dpll_param +get_iva_dpll_param: + adr r0, iva_dpll_param + mov pc, lr + +.globl get_core_dpll_param +get_core_dpll_param: + adr r0, core_dpll_param + mov pc, lr + +.globl get_per_dpll_param +get_per_dpll_param: + adr r0, per_dpll_param + mov pc, lr + +#if defined(CONFIG_OMAP36XX) +#include <asm/arch/dpll_table_36xx.S> +#elif defined(CONFIG_OMAP34XX) +#include <asm/arch/dpll_table_34xx.S> +#else +#error "DPLL Table is undefined" +#endif
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