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/*
* (C) Copyright 2008
* Texas Instruments, <www.ti.com>
*
* Author :
* Manikandan Pillai <mani.pillai@ti.com>
*
* Derived from Beagle Board and 3430 SDP code by
* Richard Woodruff <r-woodruff2@ti.com>
* Syed Mohammed Khasim <khasim@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/io.h>
#include <asm/arch/mem.h> /* get mem tables */
#include <asm/arch/sys_proto.h>
#include <i2c.h>
extern omap3_sysinfo sysinfo;
static struct ctrl *ctrl_base = (struct ctrl *)OMAP34XX_CTRL_BASE;
static char *rev_s[CPU_3XX_MAX_REV] = {
"1.0",
"2.0",
"2.1",
"3.0",
"3.1"};
/*****************************************************************
* dieid_num_r(void) - read and set die ID
*****************************************************************/
void dieid_num_r(void)
{
struct ctrl_id *id_base = (struct ctrl_id *)OMAP34XX_ID_L4_IO_BASE;
char *uid_s, die_id[34];
u32 id[4];
memset(die_id, 0, sizeof(die_id));
uid_s = getenv("dieid#");
if (uid_s == NULL) {
id[3] = readl(&id_base->die_id_0);
id[2] = readl(&id_base->die_id_1);
id[1] = readl(&id_base->die_id_2);
id[0] = readl(&id_base->die_id_3);
sprintf(die_id, "%08x%08x%08x%08x", id[0], id[1], id[2], id[3]);
setenv("dieid#", die_id);
uid_s = die_id;
}
printf("Die ID #%s\n", uid_s);
}
/******************************************
* get_cpu_type(void) - extract cpu info
******************************************/
u32 get_cpu_type(void)
{
return readl(&ctrl_base->ctrl_omap_stat);
}
/******************************************
* get_cpu_rev(void) - extract version info
******************************************/
u32 get_cpu_rev(void)
{
u32 cpuid = 0;
struct ctrl_id *id_base;
/*
* On ES1.0 the IDCODE register is not exposed on L4
* so using CPU ID to differentiate between ES1.0 and > ES1.0.
*/
__asm__ __volatile__("mrc p15, 0, %0, c0, c0, 0":"=r"(cpuid));
if ((cpuid & 0xf) == 0x0)
return CPU_3XX_ES10;
else {
/* Decode the IDs on > ES1.0 */
id_base = (struct ctrl_id *) OMAP34XX_ID_L4_IO_BASE;
cpuid = (readl(&id_base->idcode) >> CPU_3XX_ID_SHIFT) & 0xf;
/* Some early ES2.0 seem to report ID 0, fix this */
if(cpuid == 0)
cpuid = CPU_3XX_ES20;
return cpuid;
}
}
/***************************************************************************
* 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 = readl(&gpmc_cfg->cs[0].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 0x20;
}
/********************************************************
* 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;
}
/********************************************************
* is_running_in_flash() - tell if currently running in
* FLASH.
*******************************************************/
u32 is_running_in_flash(void)
{
if (get_base() < 4)
return 1; /* in FLASH */
return 0; /* running in SRAM or SDRAM */
}
/********************************************************
* is_running_in_sram() - tell if currently running in
* SRAM.
*******************************************************/
u32 is_running_in_sram(void)
{
if (get_base() == 4)
return 1; /* in SRAM */
return 0; /* running in FLASH or SDRAM */
}
/********************************************************
* is_running_in_sdram() - tell if currently running in
* SDRAM.
*******************************************************/
u32 is_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 says mem/perif
***************************************************************/
u32 get_boot_type(void)
{
return (readl(&ctrl_base->status) & SYSBOOT_MASK);
}
/*************************************************************
* get_device_type(): tell if GP/HS/EMU/TST
*************************************************************/
u32 get_device_type(void)
{
return ((readl(&ctrl_base->status) & (DEVICE_MASK)) >> 8);
}
#ifdef CONFIG_DISPLAY_CPUINFO
/**
* Print CPU information
*/
int print_cpuinfo (void)
{
char *cpu_s, *sec_s;
switch (get_cpu_type()) {
case OMAP3503:
cpu_s = "3503";
break;
case OMAP3515:
cpu_s = "3515";
break;
case OMAP3525:
cpu_s = "3525";
break;
case OMAP3530:
cpu_s = "3530";
break;
default:
cpu_s = "35XX";
break;
}
switch (get_device_type()) {
case TST_DEVICE:
sec_s = "TST";
break;
case EMU_DEVICE:
sec_s = "EMU";
break;
case HS_DEVICE:
sec_s = "HS";
break;
case GP_DEVICE:
sec_s = "GP";
break;
default:
sec_s = "?";
}
printf("OMAP%s-%s ES%s, CPU-OPP2 L3-165MHz\n",
cpu_s, sec_s, rev_s[get_cpu_rev()]);
return 0;
}
#endif /* CONFIG_DISPLAY_CPUINFO */
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