2 * Board specific setup info
4 * (C) Copyright 2004 Ales Jindra <jindra@2n.cz>
5 * (C) Copyright 2005 Ladislav Michl <michl@2n.cz>
7 * See file CREDITS for list of people who contributed to this
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License as
12 * published by the Free Software Foundation; either version 2 of
13 * the License, or (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
30 .word TEXT_BASE /* SDRAM load addr from config.mk */
32 OMAP5910_LPG1_BASE: .word 0xfffbd000
33 OMAP5910_TIPB_SWITCHES_BASE: .word 0xfffbc800
34 OMAP5910_MPU_TC_BASE: .word 0xfffecc00
35 OMAP5910_MPU_CLKM_BASE: .word 0xfffece00
36 OMAP5910_ULPD_PWR_MNG_BASE: .word 0xfffe0800
37 OMAP5910_DPLL1_BASE: .word 0xfffecf00
38 OMAP5910_GPIO_BASE: .word 0xfffce000
39 OMAP5910_MPU_WD_TIMER_BASE: .word 0xfffec800
40 OMAP5910_MPUI_BASE: .word 0xfffec900
42 _OMAP5910_ARM_CKCTL: .word OMAP5910_ARM_CKCTL
43 _OMAP5910_ARM_EN_CLK: .word OMAP5910_ARM_EN_CLK
45 OMAP5910_MPUI_CTRL: .word 0x0000ff1b
47 VAL_EMIFS_CS0_CONFIG: .word 0x00009090
48 VAL_EMIFS_CS1_CONFIG: .word 0x00003031
49 VAL_EMIFS_CS2_CONFIG: .word 0x0000a0a1
50 VAL_EMIFS_CS3_CONFIG: .word 0x0000c0c0
51 VAL_EMIFS_DYN_WAIT: .word 0x00000000
52 /* autorefresh counter 0x246 ((64000000/13.4)-400)/8192) */
53 /* SLRF SD_RET ARE SDRAM_TYPE ARCV SDRAM_FREQUENCY PWD CLK */
55 #if (PHYS_SDRAM_1_SIZE == SZ_32M)
56 VAL_EMIFF_SDRAM_CONFIG: .word ((0 << 0) | (0 << 1) | (3 << 2) | (0xf << 4) | (0x246 << 8) | (0 << 24) | (0 << 26) | (0 << 27))
58 VAL_EMIFF_SDRAM_CONFIG: .word ((0 << 0) | (0 << 1) | (3 << 2) | (0xd << 4) | (0x246 << 8) | (0 << 24) | (0 << 26) | (0 << 27))
61 VAL_EMIFF_SDRAM_CONFIG2: .word 0x00000003
62 VAL_EMIFF_MRS: .word 0x00000037
65 * GPIO04 - Green LED (Red LED is connected to LED Pulse Generator)
66 * GPIO07 - LAN91C111 reset
71 * Disable everything (green LED is connected via invertor)
81 .word 0x00000000 @ FUNC_MUX_CTRL_0
82 .word 0x00000000 @ FUNC_MUX_CTRL_1
83 .word 0x00000000 @ FUNC_MUX_CTRL_2
84 .word 0x00000000 @ FUNC_MUX_CTRL_3
85 .word 0x00000000 @ FUNC_MUX_CTRL_4
86 .word 0x02080480 @ FUNC_MUX_CTRL_5
87 .word 0x0100001c @ FUNC_MUX_CTRL_6
88 .word 0x0004800b @ FUNC_MUX_CTRL_7
89 .word 0x10001200 @ FUNC_MUX_CTRL_8
90 .word 0x01201012 @ FUNC_MUX_CTRL_9
91 .word 0x02082248 @ FUNC_MUX_CTRL_A
92 .word 0x00000248 @ FUNC_MUX_CTRL_B
93 .word 0x12240000 @ FUNC_MUX_CTRL_C
94 .word 0x00002000 @ FUNC_MUX_CTRL_D
95 .word 0x00000000 @ PULL_DWN_CTRL_0
96 .word 0x00000800 @ PULL_DWN_CTRL_1
97 .word 0x01801000 @ PULL_DWN_CTRL_2
98 .word 0x00000000 @ PULL_DWN_CTRL_3
99 .word 0x00000000 @ GATE_INH_CTRL_0
100 .word 0x00000000 @ VOLTAGE_CTRL_0
101 .word 0x00000000 @ TEST_DBG_CTRL_0
102 .word 0x00000006 @ MOD_CONF_CTRL_0
103 .word 0x0000eaef @ COMP_MODE_CTRL_0
107 .byte 0x00 @ FUNC_MUX_CTRL_0
108 .byte 0x04 @ FUNC_MUX_CTRL_1
109 .byte 0x08 @ FUNC_MUX_CTRL_2
110 .byte 0x10 @ FUNC_MUX_CTRL_3
111 .byte 0x14 @ FUNC_MUX_CTRL_4
112 .byte 0x18 @ FUNC_MUX_CTRL_5
113 .byte 0x1c @ FUNC_MUX_CTRL_6
114 .byte 0x20 @ FUNC_MUX_CTRL_7
115 .byte 0x24 @ FUNC_MUX_CTRL_8
116 .byte 0x28 @ FUNC_MUX_CTRL_9
117 .byte 0x2c @ FUNC_MUX_CTRL_A
118 .byte 0x30 @ FUNC_MUX_CTRL_B
119 .byte 0x34 @ FUNC_MUX_CTRL_C
120 .byte 0x38 @ FUNC_MUX_CTRL_D
121 .byte 0x40 @ PULL_DWN_CTRL_0
122 .byte 0x44 @ PULL_DWN_CTRL_1
123 .byte 0x48 @ PULL_DWN_CTRL_2
124 .byte 0x4c @ PULL_DWN_CTRL_3
125 .byte 0x50 @ GATE_INH_CTRL_0
126 .byte 0x60 @ VOLTAGE_CTRL_0
127 .byte 0x70 @ TEST_DBG_CTRL_0
128 .byte 0x80 @ MOD_CONF_CTRL_0
129 .byte 0x0c @ COMP_MODE_CTRL_0
134 /* Improve performance a bit... */
135 mrc p15, 0, r1, c0, c0, 0 @ read C15 ID register
136 mrc p15, 0, r1, c0, c0, 1 @ read C15 Cache information register
137 mrc p15, 0, r1, c1, c0, 0 @ read C15 Control register
138 orr r1, r1, #0x1000 @ enable I-cache, map interrupt vector 0xffff0000
139 mcr p15, 0, r1, c1, c0, 0 @ write C15 Control register
141 mcr p15, 0, r1, c7, c5, 0 @ Flush I-cache
147 /* Setup clocking mode */
148 ldr r0, OMAP5910_MPU_CLKM_BASE @ base of CLOCK unit
149 ldrh r1, [r0, #0x18] @ ARM_SYST - get reset status
150 bic r1, r1, #(7 << 11) @ clear clock select
151 orr r1, r1, #(2 << 11) @ set synchronous scalable
154 cmp r2, #1 @ this loop will wait for at least 100 cycles
155 streqh r1, [r0, #0x18] @ before issuing next request from MPU
156 add r2, r2, #1 @ on the 1st run code is loaded into I-cache
157 cmp r2, #16 @ and second run will set clocking mode
161 /* Setup clock dividers */
162 ldr r1, _OMAP5910_ARM_CKCTL
163 orr r1, r1, #0x2000 @ enable DSP clock
164 strh r1, [r0] @ setup clock divisors
166 /* Setup DPLL to generate requested freq */
167 ldr r0, OMAP5910_DPLL1_BASE @ base of DPLL1 register
168 mov r1, #0x0010 @ set PLL_ENABLE
169 orr r1, r1, #0x2000 @ set IOB to new locking
170 orr r1, r1, #(OMAP5910_DPLL_MUL << 7) @ setup multiplier CLKREF
171 orr r1, r1, #(OMAP5910_DPLL_DIV << 5) @ setup divider CLKREF
172 strh r1, [r0] @ write
175 ldrh r1, [r0] @ get DPLL value
177 beq locking @ while LOCK not set
180 ldr r0, OMAP5910_MPU_CLKM_BASE @ base of CLOCK unit
181 mov r1, #(1 << 10) @ disable idle mode do not check
182 @ nWAKEUP pin, other remain active
184 ldr r1, _OMAP5910_ARM_EN_CLK
186 mov r1, #0x003f @ FLASH.RP not enabled in idle and
187 strh r1, [r0, #0x0c] @ max delayed ( 32 x CLKIN )
189 /* Configure 5910 pins functions to match our board. */
190 ldr r0, MUX_CONFIG_BASE
191 adr r1, MUX_CONFIG_VALUES
192 adr r2, MUX_CONFIG_OFFSETS
200 /* Configure GPIO pins (also disables Green LED) */
201 ldr r0, OMAP5910_GPIO_BASE
204 ldr r1, GPIO_DIRECTION
207 /* EnablePeripherals */
208 ldr r0, OMAP5910_MPU_CLKM_BASE @ CLOCK unit
209 mov r1, #0x0001 @ Peripheral enable
212 /* Program LED Pulse Generator */
213 ldr r0, OMAP5910_LPG1_BASE @ 1st LED Pulse Generator
214 mov r1, #0x7F @ Set obscure frequency in
215 strb r1, [r0, #0x00] @ LCR
216 mov r1, #0x01 @ Enable clock (CLK_EN) in
217 strb r1, [r0, #0x04] @ PMR
219 /* TIPB Lock UART1 */
220 ldr r0, OMAP5910_TIPB_SWITCHES_BASE @ prepare base of TIPB switches
221 mov r1, #1 @ ARM allocated
222 strh r1, [r0,#0x04] @ clear IRQ line and status bits
226 /* Disable watchdog */
227 ldr r0, OMAP5910_MPU_WD_TIMER_BASE
234 ldr r0, OMAP5910_ULPD_PWR_MNG_BASE
239 /* Setup clock divisors */
240 ldr r0, OMAP5910_ULPD_PWR_MNG_BASE @ base of ULDPL DPLL1 register
242 mov r1, #0x0010 @ set PLL_ENABLE
243 orr r1, r1, #0x2000 @ set IOB to new locking
244 strh r1, [r0] @ write
247 ldrh r1, [r0] @ get DPLL value
249 beq ulocking @ while LOCK not set
252 ldr r0, OMAP5910_MPU_TC_BASE
253 ldrh r1, [r0, #0x0c] @ EMIFS_CONFIG_REG
254 bic r1, r1, #0x0c @ pwr down disabled, flash WP
258 ldr r1, VAL_EMIFS_CS0_CONFIG
259 str r1, [r0, #0x10] @ EMIFS_CS0_CONFIG
260 ldr r1, VAL_EMIFS_CS1_CONFIG
261 str r1, [r0, #0x14] @ EMIFS_CS1_CONFIG
262 ldr r1, VAL_EMIFS_CS2_CONFIG
263 str r1, [r0, #0x18] @ EMIFS_CS2_CONFIG
264 ldr r1, VAL_EMIFS_CS3_CONFIG
265 str r1, [r0, #0x1c] @ EMIFS_CS3_CONFIG
266 ldr r1, VAL_EMIFS_DYN_WAIT
267 str r1, [r0, #0x40] @ EMIFS_CFG_DYN_WAIT
270 ldr r1, VAL_EMIFF_SDRAM_CONFIG
271 str r1, [r0, #0x20] @ EMIFF_SDRAM_CONFIG
272 ldr r1, VAL_EMIFF_SDRAM_CONFIG2
273 str r1, [r0, #0x3c] @ EMIFF_SDRAM_CONFIG2
274 ldr r1, VAL_EMIFF_MRS
275 str r1, [r0, #0x24] @ EMIFF_MRS
276 /* SDRAM needs 100us to stabilize */
282 /* back to arch calling code */