2 * Board specific setup info
5 * Texas Instruments, <www.ti.com>
11 * See file CREDITS for list of people who contributed to this
14 * This program is free software; you can redistribute it and/or
15 * modify it under the terms of the GNU General Public License as
16 * published by the Free Software Foundation; either version 2 of
17 * the License, or (at your option) any later version.
19 * This program is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
24 * You should have received a copy of the GNU General Public License
25 * along with this program; if not, write to the Free Software
26 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
32 #include <asm/arch/mem.h>
33 #include <asm/arch/clocks_omap3.h>
36 .word TEXT_BASE /* sdram load addr from config.mk */
38 #if !defined(CONFIG_SYS_NAND_BOOT) && !defined(CONFIG_SYS_NAND_BOOT)
39 /**************************************************************************
40 * cpy_clk_code: relocates clock code into SRAM where its safer to execute
41 * R1 = SRAM destination address.
42 *************************************************************************/
45 /* Copy DPLL code into SRAM */
46 adr r0, go_to_speed /* get addr of clock setting code */
47 mov r2, #384 /* r2 size to copy (div by 32 bytes) */
48 mov r1, r1 /* r1 <- dest address (passed in) */
49 add r2, r2, r0 /* r2 <- source end address */
51 ldmia r0!, {r3 - r10} /* copy from source address [r0] */
52 stmia r1!, {r3 - r10} /* copy to target address [r1] */
53 cmp r0, r2 /* until source end address [r2] */
55 mov pc, lr /* back to caller */
57 /* ***************************************************************************
58 * go_to_speed: -Moves to bypass, -Commits clock dividers, -puts dpll at speed
59 * -executed from SRAM.
60 * R0 = CM_CLKEN_PLL-bypass value
61 * R1 = CM_CLKSEL1_PLL-m, n, and divider values
62 * R2 = CM_CLKSEL_CORE-divider values
63 * R3 = CM_IDLEST_CKGEN - addr dpll lock wait
65 * Note: If core unlocks/relocks and SDRAM is running fast already it gets
66 * confused. A reset of the controller gets it back. Taking away its
67 * L3 when its not in self refresh seems bad for it. Normally, this
68 * code runs from flash before SDR is init so that should be ok.
69 ****************************************************************************/
74 /* move into fast relock bypass */
78 ldr r5, [r3] /* get status */
79 and r5, r5, #0x1 /* isolate core status */
80 cmp r5, #0x1 /* still locked? */
81 beq wait1 /* if lock, loop */
83 /* set new dpll dividers _after_ in bypass */
85 str r1, [r5] /* set m, n, m2 */
87 str r2, [r5] /* set l3/l4/.. dividers*/
88 ldr r5, pll_div_add3 /* wkup */
89 ldr r2, pll_div_val3 /* rsm val */
91 ldr r5, pll_div_add4 /* gfx */
94 ldr r5, pll_div_add5 /* emu */
98 /* now prepare GPMC (flash) for new dpll speed */
99 /* flash needs to be stable when we jump back to it */
100 ldr r5, flash_cfg3_addr
101 ldr r2, flash_cfg3_val
103 ldr r5, flash_cfg4_addr
104 ldr r2, flash_cfg4_val
106 ldr r5, flash_cfg5_addr
107 ldr r2, flash_cfg5_val
109 ldr r5, flash_cfg1_addr
111 orr r2, r2, #0x3 /* up gpmc divider */
114 /* lock DPLL3 and wait a bit */
115 orr r0, r0, #0x7 /* set up for lock mode */
116 str r0, [r4] /* lock */
117 nop /* ARM slow at this point working at sys_clk */
122 ldr r5, [r3] /* get status */
123 and r5, r5, #0x1 /* isolate core status */
124 cmp r5, #0x1 /* still locked? */
125 bne wait2 /* if lock, loop */
131 mov pc, lr /* back to caller, locked */
133 _go_to_speed: .word go_to_speed
135 /* these constants need to be close for PIC code */
136 /* The Nor has to be in the Flash Base CS0 for this condition to happen */
138 .word (GPMC_CONFIG_CS0_BASE + GPMC_CONFIG1)
140 .word (GPMC_CONFIG_CS0_BASE + GPMC_CONFIG3)
142 .word STNOR_GPMC_CONFIG3
144 .word (GPMC_CONFIG_CS0_BASE + GPMC_CONFIG4)
146 .word STNOR_GPMC_CONFIG4
148 .word STNOR_GPMC_CONFIG5
150 .word (GPMC_CONFIG_CS0_BASE + GPMC_CONFIG5)
160 .word (WKUP_RSM << 1)
175 str ip, [sp] /* stash old link register */
176 mov ip, lr /* save link reg across call */
177 bl s_init /* go setup pll, mux, memory */
178 ldr ip, [sp] /* restore save ip */
179 mov lr, ip /* restore link reg */
181 /* back to arch calling code */
184 /* the literal pools origin */
190 .word LOW_LEVEL_SRAM_STACK
192 /* DPLL(1-4) PARAM TABLES */
195 * Each of the tables has M, N, FREQSEL, M2 values defined for nominal
196 * OPP (1.2V). The fields are defined according to dpll_param struct (clock.c).
197 * The values are defined for all possible sysclk and for ES1 and ES2.
203 .word MPU_M_12_ES1, MPU_N_12_ES1, MPU_FSEL_12_ES1, MPU_M2_12_ES1
205 .word MPU_M_12_ES2, MPU_N_12_ES2, MPU_FSEL_12_ES2, MPU_M2_ES2
207 .word MPU_M_12, MPU_N_12, MPU_FSEL_12, MPU_M2_12
211 .word MPU_M_13_ES1, MPU_N_13_ES1, MPU_FSEL_13_ES1, MPU_M2_13_ES1
213 .word MPU_M_13_ES2, MPU_N_13_ES2, MPU_FSEL_13_ES2, MPU_M2_13_ES2
215 .word MPU_M_13, MPU_N_13, MPU_FSEL_13, MPU_M2_13
219 .word MPU_M_19P2_ES1, MPU_N_19P2_ES1, MPU_FSEL_19P2_ES1, MPU_M2_19P2_ES1
221 .word MPU_M_19P2_ES2, MPU_N_19P2_ES2, MPU_FSEL_19P2_ES2, MPU_M2_19P2_ES2
223 .word MPU_M_19P2, MPU_N_19P2, MPU_FSEL_19P2, MPU_M2_19P2
227 .word MPU_M_26_ES1, MPU_N_26_ES1, MPU_FSEL_26_ES1, MPU_M2_26_ES1
229 .word MPU_M_26_ES2, MPU_N_26_ES2, MPU_FSEL_26_ES2, MPU_M2_26_ES2
231 .word MPU_M_26, MPU_N_26, MPU_FSEL_26, MPU_M2_26
235 .word MPU_M_38P4_ES1, MPU_N_38P4_ES1, MPU_FSEL_38P4_ES1, MPU_M2_38P4_ES1
237 .word MPU_M_38P4_ES2, MPU_N_38P4_ES2, MPU_FSEL_38P4_ES2, MPU_M2_38P4_ES2
239 .word MPU_M_38P4, MPU_N_38P4, MPU_FSEL_38P4, MPU_M2_38P4
242 .globl get_mpu_dpll_param
244 adr r0, mpu_dpll_param
250 .word IVA_M_12_ES1, IVA_N_12_ES1, IVA_FSEL_12_ES1, IVA_M2_12_ES1
252 .word IVA_M_12_ES2, IVA_N_12_ES2, IVA_FSEL_12_ES2, IVA_M2_12_ES2
254 .word IVA_M_12, IVA_N_12, IVA_FSEL_12, IVA_M2_12
258 .word IVA_M_13_ES1, IVA_N_13_ES1, IVA_FSEL_13_ES1, IVA_M2_13_ES1
260 .word IVA_M_13_ES2, IVA_N_13_ES2, IVA_FSEL_13_ES2, IVA_M2_13_ES2
262 .word IVA_M_13, IVA_N_13, IVA_FSEL_13, IVA_M2_13
266 .word IVA_M_19P2_ES1, IVA_N_19P2_ES1, IVA_FSEL_19P2_ES1, IVA_M2_19P2_ES1
268 .word IVA_M_19P2_ES2, IVA_N_19P2_ES2, IVA_FSEL_19P2_ES2, IVA_M2_19P2_ES2
270 .word IVA_M_19P2, IVA_N_19P2, IVA_FSEL_19P2, IVA_M2_19P2
274 .word IVA_M_26_ES1, IVA_N_26_ES1, IVA_FSEL_26_ES1, IVA_M2_26_ES1
276 .word IVA_M_26_ES2, IVA_N_26_ES2, IVA_FSEL_26_ES2, IVA_M2_26_ES2
278 .word IVA_M_26, IVA_N_26, IVA_FSEL_26, IVA_M2_26
282 .word IVA_M_38P4_ES1, IVA_N_38P4_ES1, IVA_FSEL_38P4_ES1, IVA_M2_38P4_ES1
284 .word IVA_M_38P4_ES2, IVA_N_38P4_ES2, IVA_FSEL_38P4_ES2, IVA_M2_38P4_ES2
286 .word IVA_M_38P4, IVA_N_38P4, IVA_FSEL_38P4, IVA_M2_38P4
289 .globl get_iva_dpll_param
291 adr r0, iva_dpll_param
294 /* Core DPLL targets for L3 at 166 & L133 */
298 .word CORE_M_12_ES1, CORE_N_12_ES1, CORE_FSL_12_ES1, CORE_M2_12_ES1
300 .word CORE_M_12, CORE_N_12, CORE_FSEL_12, CORE_M2_12
302 .word CORE_M_12, CORE_N_12, CORE_FSEL_12, CORE_M2_12
306 .word CORE_M_13_ES1, CORE_N_13_ES1, CORE_FSL_13_ES1, CORE_M2_13_ES1
308 .word CORE_M_13, CORE_N_13, CORE_FSEL_13, CORE_M2_13
310 .word CORE_M_13, CORE_N_13, CORE_FSEL_13, CORE_M2_13
314 .word CORE_M_19P2_ES1, CORE_N_19P2_ES1, CORE_FSL_19P2_ES1, CORE_M2_19P2_ES1
316 .word CORE_M_19P2, CORE_N_19P2, CORE_FSEL_19P2, CORE_M2_19P2
318 .word CORE_M_19P2, CORE_N_19P2, CORE_FSEL_19P2, CORE_M2_19P2
322 .word CORE_M_26_ES1, CORE_N_26_ES1, CORE_FSL_26_ES1, CORE_M2_26_ES1
324 .word CORE_M_26, CORE_N_26, CORE_FSEL_26, CORE_M2_26
326 .word CORE_M_26, CORE_N_26, CORE_FSEL_26, CORE_M2_26
330 .word CORE_M_38P4_ES1, CORE_N_38P4_ES1, CORE_FSL_38P4_ES1, CORE_M2_38P4_ES1
332 .word CORE_M_38P4, CORE_N_38P4, CORE_FSEL_38P4, CORE_M2_38P4
334 .word CORE_M_38P4, CORE_N_38P4, CORE_FSEL_38P4, CORE_M2_38P4
336 .globl get_core_dpll_param
338 adr r0, core_dpll_param
341 /* PER DPLL values are same for both ES1 and ES2 */
344 .word PER_M_12, PER_N_12, PER_FSEL_12, PER_M2_12
347 .word PER_M_13, PER_N_13, PER_FSEL_13, PER_M2_13
350 .word PER_M_19P2, PER_N_19P2, PER_FSEL_19P2, PER_M2_19P2
353 .word PER_M_26, PER_N_26, PER_FSEL_26, PER_M2_26
356 .word PER_M_38P4, PER_N_38P4, PER_FSEL_38P4, PER_M2_38P4
358 .globl get_per_dpll_param
360 adr r0, per_dpll_param