3 * Texas Instruments, <www.ti.com>
6 * Manikandan Pillai <mani.pillai@ti.com>
8 * Derived from Beagle Board and 3430 SDP code by
9 * Richard Woodruff <r-woodruff2@ti.com>
10 * Syed Mohammed Khasim <khasim@ti.com>
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License as
14 * published by the Free Software Foundation; either version 2 of
15 * the License, or (at your option) any later version.
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR /PURPOSE. See the
20 * GNU General Public License for more details.
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
30 #include <asm/arch/mem.h> /* get mem tables */
31 #include <asm/arch/sys_proto.h>
34 extern omap3_sysinfo sysinfo;
35 static gpmc_csx_t *gpmc_cs_base = (gpmc_csx_t *)GPMC_CONFIG_CS0_BASE;
36 static sdrc_t *sdrc_base = (sdrc_t *)OMAP34XX_SDRC_BASE;
37 static ctrl_t *ctrl_base = (ctrl_t *)OMAP34XX_CTRL_BASE;
39 /*****************************************************************
40 * dieid_num_r(void) - read and set die ID
41 *****************************************************************/
42 void dieid_num_r(void)
44 ctrl_id_t *id_base = (ctrl_id_t *)OMAP34XX_ID_L4_IO_BASE;
45 char *uid_s, die_id[34];
48 memset(die_id, 0, sizeof(die_id));
50 uid_s = getenv("dieid#");
53 id[3] = readl(&id_base->die_id_0);
54 id[2] = readl(&id_base->die_id_1);
55 id[1] = readl(&id_base->die_id_2);
56 id[0] = readl(&id_base->die_id_3);
57 sprintf(die_id, "%08x%08x%08x%08x", id[0], id[1], id[2], id[3]);
58 setenv("dieid#", die_id);
62 printf("Die ID #%s\n", uid_s);
65 /******************************************
66 * get_cpu_type(void) - extract cpu info
67 ******************************************/
68 u32 get_cpu_type(void)
70 return readl(&ctrl_base->ctrl_omap_stat);
73 /******************************************
74 * get_cpu_rev(void) - extract version info
75 ******************************************/
81 * On ES1.0 the IDCODE register is not exposed on L4
82 * so using CPU ID to differentiate
83 * between ES2.0 and ES1.0.
85 __asm__ __volatile__("mrc p15, 0, %0, c0, c0, 0":"=r"(cpuid));
86 if ((cpuid & 0xf) == 0x0)
93 /****************************************************
94 * is_mem_sdr() - return 1 if mem type in use is SDR
95 ****************************************************/
98 if (readl(&sdrc_base->cs[CS0].mr) == SDP_SDRC_MR_0_SDR)
103 /***********************************************************************
104 * get_cs0_size() - get size of chip select 0/1
105 ************************************************************************/
106 u32 get_sdr_cs_size(u32 cs)
110 /* get ram size field */
111 size = readl(&sdrc_base->cs[cs].mcfg) >> 8;
112 size &= 0x3FF; /* remove unwanted bits */
113 size *= SZ_2M; /* find size in MB */
117 /***********************************************************************
118 * get_sdr_cs_offset() - get offset of cs from cs0 start
119 ************************************************************************/
120 u32 get_sdr_cs_offset(u32 cs)
127 offset = readl(&sdrc_base->cs_cfg);
128 offset = (offset & 15) << 27 | (offset & 0x30) >> 17;
133 /***********************************************************************
134 * get_board_type() - get board type based on current production stats.
135 * - NOTE-1-: 2 I2C EEPROMs will someday be populated with proper info.
136 * when they are available we can get info from there. This should
137 * be correct of all known boards up until today.
138 * - NOTE-2- EEPROMs are populated but they are updated very slowly. To
139 * avoid waiting on them we will use ES version of the chip to get info.
140 * A later version of the FPGA migth solve their speed issue.
141 ************************************************************************/
142 u32 get_board_type(void)
144 if (get_cpu_rev() == CPU_3430_ES2)
145 return sysinfo.board_type_v2;
147 return sysinfo.board_type_v1;
150 /***************************************************************************
151 * get_gpmc0_base() - Return current address hardware will be
152 * fetching from. The below effectively gives what is correct, its a bit
153 * mis-leading compared to the TRM. For the most general case the mask
154 * needs to be also taken into account this does work in practice.
155 * - for u-boot we currently map:
160 ****************************************************************************/
161 u32 get_gpmc0_base(void)
165 b = readl(&gpmc_cs_base->config7);
166 b &= 0x1F; /* keep base [5:0] */
167 b = b << 24; /* ret 0x0b000000 */
171 /*******************************************************************
172 * get_gpmc0_width() - See if bus is in x8 or x16 (mainly for nand)
173 *******************************************************************/
174 u32 get_gpmc0_width(void)
179 /*************************************************************************
180 * get_board_rev() - setup to pass kernel board revision information
181 * returns:(bit[0-3] sub version, higher bit[7-4] is higher version)
182 *************************************************************************/
183 u32 get_board_rev(void)
188 /********************************************************
189 * get_base(); get upper addr of current execution
190 *******************************************************/
195 __asm__ __volatile__("mov %0, pc \n":"=r"(val)::"memory");
201 /********************************************************
202 * is_running_in_flash() - tell if currently running in
204 *******************************************************/
205 u32 is_running_in_flash(void)
208 return 1; /* in FLASH */
210 return 0; /* running in SRAM or SDRAM */
213 /********************************************************
214 * is_running_in_sram() - tell if currently running in
216 *******************************************************/
217 u32 is_running_in_sram(void)
220 return 1; /* in SRAM */
222 return 0; /* running in FLASH or SDRAM */
225 /********************************************************
226 * is_running_in_sdram() - tell if currently running in
228 *******************************************************/
229 u32 is_running_in_sdram(void)
232 return 1; /* in SDRAM */
234 return 0; /* running in SRAM or FLASH */
237 /***************************************************************
238 * get_boot_type() - Is this an XIP type device or a stream one
239 * bits 4-0 specify type. Bit 5 says mem/perif
240 ***************************************************************/
241 u32 get_boot_type(void)
243 return (readl(&ctrl_base->status) & SYSBOOT_MASK);
246 /*************************************************************
247 * get_device_type(): tell if GP/HS/EMU/TST
248 *************************************************************/
249 u32 get_device_type(void)
251 return ((readl(&ctrl_base->status) & (DEVICE_MASK)) >> 8);
254 #ifdef CONFIG_DISPLAY_CPUINFO
256 * Print CPU information
258 int print_cpuinfo (void)
262 switch (get_cpu_type()) {
280 switch (get_device_type()) {
297 printf("OMAP%s-%s rev %d, CPU-OPP2 L3-165MHz\n", cpu_s,
298 sec_s, get_cpu_rev());
302 #endif /* CONFIG_DISPLAY_CPUINFO */