diff options
Diffstat (limited to 'board/omap3430labrador/sys_info.c')
-rw-r--r-- | board/omap3430labrador/sys_info.c | 330 |
1 files changed, 330 insertions, 0 deletions
diff --git a/board/omap3430labrador/sys_info.c b/board/omap3430labrador/sys_info.c new file mode 100644 index 0000000000..eaeeffe8c0 --- /dev/null +++ b/board/omap3430labrador/sys_info.c @@ -0,0 +1,330 @@ +/* + * (C) Copyright 2004-2006 + * Texas Instruments, <www.ti.com> + * Richard Woodruff <r-woodruff2@ti.com> + * + * 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/io.h> +#include <asm/arch/bits.h> +#include <asm/arch/mem.h> /* get mem tables */ +#include <asm/arch/sys_proto.h> +#include <asm/arch/sys_info.h> +#include <i2c.h> + + +/************************************************************************ + * get_gpmc0_type() - read sysboot lines to see type of memory attached + ************************************************************************/ +u32 get_gpmc0_type(void) +{ + u32 type; + type = get_sysboot_value(); +// if ((type & (BIT3|BIT2)) == (BIT3|BIT2)) + return(TYPE_NAND); +} + +/**************************************************** + * get_cpu_type() - low level get cpu type + * - no C globals yet. + ****************************************************/ +u32 get_cpu_type(void) +{ + return (CPU_3430); +} + +/****************************************** + * get_cpu_rev(void) - extract version info + ******************************************/ +u32 get_cpu_rev(void) +{ + u32 cpuid=0; + /* On ES1.0 the IDCODE register is not exposed on L4 + * so using CPU ID to differentiate + * between ES2.0 and ES1.0. + */ + __asm__ __volatile__("mrc p15, 0, %0, c0, c0, 0":"=r" (cpuid)); + if((cpuid & 0xf) == 0x0) + return CPU_3430_ES1; + else + return CPU_3430_ES2; + +} + +/****************************************** + * cpu_is_3410(void) - returns true for 3410 + ******************************************/ +u32 cpu_is_3410(void) +{ + int status; + if(get_cpu_rev() < CPU_3430_ES2) { + return 0; + } else { + /* read scalability status and return 1 for 3410*/ + status = __raw_readl(CONTROL_SCALABLE_OMAP_STATUS); + /* Check whether MPU frequency is set to 266 MHz which + * is nominal for 3410. If yes return true else false + */ + if (((status >> 8) & 0x3) == 0x2) + return 1; + else + return 0; + } +} + +/**************************************************** + * is_mem_sdr() - return 1 if mem type in use is SDR + ****************************************************/ +u32 is_mem_sdr(void) +{ + volatile u32 *burst = (volatile u32 *)(SDRC_MR_0 + SDRC_CS0_OSET); + if (*burst == SDP_SDRC_MR_0_SDR) + return (1); + return (0); +} + +/*********************************************************** + * get_mem_type() - identify type of mDDR part used. + ***********************************************************/ +u32 get_mem_type(void) +{ + return (DDR_DISCRETE); /* LAB has single stacked x32 POP die */ +} + +/*********************************************************************** + * get_cs0_size() - get size of chip select 0/1 + ************************************************************************/ +u32 get_sdr_cs_size(u32 offset) +{ + u32 size; + + /* get ram size field */ + size = __raw_readl(SDRC_MCFG_0 + offset) >> 8; + size &= 0x3FF; /* remove unwanted bits */ + size *= SZ_2M; /* find size in MB */ + return (size); +} + +/*********************************************************************** + * get_board_type() - get board type based on current production stats. + * - NOTE-1-: 2 I2C EEPROMs will someday be populated with proper info. + * when they are available we can get info from there. This should + * be correct of all known boards up until today. + * - NOTE-2- EEPROMs are populated but they are updated very slowly. To + * avoid waiting on them we will use ES version of the chip to get info. + * A later version of the FPGA migth solve their speed issue. + ************************************************************************/ +u32 get_board_type(void) +{ + return BOARD_3430_LABRADOR; +} + +/****************************************************************** + * get_sysboot_value() - get init word settings + ******************************************************************/ +inline u32 get_sysboot_value(void) +{ + return (0x0000003F & __raw_readl(CONTROL_STATUS)); +} + +/*************************************************************************** + * get_gpmc0_base() - Return current address hardware will be + * fetching from. The below effectively gives what is correct, its a bit + * mis-leading compared to the TRM. For the most general case the mask + * needs to be also taken into account this does work in practice. + * - for u-boot we currently map: + * -- 0 to nothing, + * -- 4 to flash + * -- 8 to enent + * -- c to wifi + ****************************************************************************/ +u32 get_gpmc0_base(void) +{ + u32 b; + + b = __raw_readl(GPMC_CONFIG_CS0 + GPMC_CONFIG7); + b &= 0x1F; /* keep base [5:0] */ + b = b << 24; /* ret 0x0b000000 */ + return (b); +} + +/******************************************************************* + * get_gpmc0_width() - See if bus is in x8 or x16 (mainly for nand) + *******************************************************************/ +u32 get_gpmc0_width(void) +{ + return (WIDTH_16BIT); +} + +/************************************************************************* + * get_board_rev() - setup to pass kernel board revision information + * returns:(bit[0-3] sub version, higher bit[7-4] is higher version) + *************************************************************************/ +u32 get_board_rev(void) +{ + return (BOARD_3430_LABRADOR_V1); +} + +/********************************************************************* + * display_board_info() - print banner with board info. + *********************************************************************/ +void display_board_info(u32 btype) +{ + char *bootmode[] = { + "NOR", + "ONND", + "NAND", + }; + u32 brev = get_board_rev(); + char cpu_3430s[] = "3430"; + char db_ver[] = "0.0"; /* board type */ + char mem_sdr[] = "mSDR"; /* memory type */ + char mem_ddr[] = "mDDR"; + char t_tst[] = "TST"; /* security level */ + char t_emu[] = "EMU"; + char t_hs[] = "HS"; + char t_gp[] = "GP"; + char unk[] = "?"; + +#if defined(L3_165MHZ) + char p_l3[] = "165"; +#elif defined(L3_110MHZ) + char p_l3[] = "110"; +#elif defined(L3_133MHZ) + char p_l3[] = "133"; +#elif defined(L3_100MHZ) + char p_l3[] = "100" +#endif + +#if defined(PRCM_PCLK_OPP1) + char p_cpu[] = "1"; +#elif defined(PRCM_PCLK_OPP2) + char p_cpu[] = "2"; +#elif defined(PRCM_PCLK_OPP3) + char p_cpu[] = "3"; +#elif defined(PRCM_PCLK_OPP4) + char p_cpu[] = "4" +#endif + char *cpu_s, *db_s, *mem_s, *sec_s; + u32 cpu, rev, sec; + + rev = get_cpu_rev(); + cpu = get_cpu_type(); + sec = get_device_type(); + + if (is_mem_sdr()) + mem_s = mem_sdr; + else + mem_s = mem_ddr; + + cpu_s = cpu_3430s; + + db_s = db_ver; + db_s[0] += (brev >> 4) & 0xF; + db_s[2] += brev & 0xF; + + switch (sec) { + case TST_DEVICE: + sec_s = t_tst; + break; + case EMU_DEVICE: + sec_s = t_emu; + break; + case HS_DEVICE: + sec_s = t_hs; + break; + case GP_DEVICE: + sec_s = t_gp; + break; + default: + sec_s = unk; + } + + printf("OMAP%s-%s rev %d, CPU-OPP%s L3-%sMHz\n", cpu_s, sec_s, rev, p_cpu, + p_l3); + printf("OMAP3430LAB %s Version + %s (Boot %s)\n", db_s, + mem_s, bootmode[2]); +} + +/******************************************************** + * get_base(); get upper addr of current execution + *******************************************************/ +u32 get_base(void) +{ + u32 val; + __asm__ __volatile__("mov %0, pc \n":"=r"(val)::"memory"); + val &= 0xF0000000; + val >>= 28; + return (val); +} + +/******************************************************** + * running_in_flash() - tell if currently running in + * flash. + *******************************************************/ +u32 running_in_flash(void) +{ + if (get_base() < 4) + return (1); /* in flash */ + return (0); /* running in SRAM or SDRAM */ +} + +/******************************************************** + * running_in_sram() - tell if currently running in + * sram. + *******************************************************/ +u32 running_in_sram(void) +{ + if (get_base() == 4) + return (1); /* in SRAM */ + return (0); /* running in FLASH or SDRAM */ +} + +/******************************************************** + * running_in_sdram() - tell if currently running in + * sdram. + *******************************************************/ +u32 running_in_sdram(void) +{ + if (get_base() > 4) + return (1); /* in sdram */ + return (0); /* running in SRAM or FLASH */ +} + +/*************************************************************** + * get_boot_type() - Is this an XIP type device or a stream one + * bits 4-0 specify type. Bit 5 sys mem/perif + ***************************************************************/ +u32 get_boot_type(void) +{ + u32 v; + + v = get_sysboot_value() & (BIT4 | BIT3 | BIT2 | BIT1 | BIT0); + return v; +} + +/************************************************************* + * 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); +} |