2
* Copyright (C) 2011 Andes Technology Corporation
3
* Macpaul Lin, Andes Technology Corporation <macpaul@andestech.com>
5
* SPDX-License-Identifier: GPL-2.0+
13
#include <asm/macro.h>
14
#include <generated/asm-offsets.h>
17
* parameters for Synopsys DWC DDR2/DDR1 Memory Controller
19
#define DDR2C_BASE_A (CONFIG_DWCDDR21MCTL_BASE)
20
#define DDR2C_CCR_A (DDR2C_BASE_A + DWCDDR21MCTL_CCR)
21
#define DDR2C_DCR_A (DDR2C_BASE_A + DWCDDR21MCTL_DCR)
22
#define DDR2C_IOCR_A (DDR2C_BASE_A + DWCDDR21MCTL_IOCR)
23
#define DDR2C_CSR_A (DDR2C_BASE_A + DWCDDR21MCTL_CSR)
24
#define DDR2C_DRR_A (DDR2C_BASE_A + DWCDDR21MCTL_DRR)
25
#define DDR2C_DLLCR0_A (DDR2C_BASE_A + DWCDDR21MCTL_DLLCR0)
26
#define DDR2C_DLLCR1_A (DDR2C_BASE_A + DWCDDR21MCTL_DLLCR1)
27
#define DDR2C_DLLCR2_A (DDR2C_BASE_A + DWCDDR21MCTL_DLLCR2)
28
#define DDR2C_DLLCR3_A (DDR2C_BASE_A + DWCDDR21MCTL_DLLCR3)
29
#define DDR2C_DLLCR4_A (DDR2C_BASE_A + DWCDDR21MCTL_DLLCR4)
30
#define DDR2C_DLLCR5_A (DDR2C_BASE_A + DWCDDR21MCTL_DLLCR5)
31
#define DDR2C_DLLCR6_A (DDR2C_BASE_A + DWCDDR21MCTL_DLLCR6)
32
#define DDR2C_DLLCR7_A (DDR2C_BASE_A + DWCDDR21MCTL_DLLCR7)
33
#define DDR2C_DLLCR8_A (DDR2C_BASE_A + DWCDDR21MCTL_DLLCR8)
34
#define DDR2C_DLLCR9_A (DDR2C_BASE_A + DWCDDR21MCTL_DLLCR9)
35
#define DDR2C_RSLR0_A (DDR2C_BASE_A + DWCDDR21MCTL_RSLR0)
36
#define DDR2C_RDGR0_A (DDR2C_BASE_A + DWCDDR21MCTL_RDGR0)
37
#define DDR2C_DTAR_A (DDR2C_BASE_A + DWCDDR21MCTL_DTAR)
38
#define DDR2C_MR_A (DDR2C_BASE_A + DWCDDR21MCTL_MR)
40
#define DDR2C_CCR_D CONFIG_SYS_DWCDDR21MCTL_CCR
41
#define DDR2C_CCR_D2 CONFIG_SYS_DWCDDR21MCTL_CCR2
42
#define DDR2C_DCR_D CONFIG_SYS_DWCDDR21MCTL_DCR
43
#define DDR2C_IOCR_D CONFIG_SYS_DWCDDR21MCTL_IOCR
44
#define DDR2C_CSR_D CONFIG_SYS_DWCDDR21MCTL_CSR
45
#define DDR2C_DRR_D CONFIG_SYS_DWCDDR21MCTL_DRR
46
#define DDR2C_RSLR0_D CONFIG_SYS_DWCDDR21MCTL_RSLR0
47
#define DDR2C_RDGR0_D CONFIG_SYS_DWCDDR21MCTL_RDGR0
48
#define DDR2C_DTAR_D CONFIG_SYS_DWCDDR21MCTL_DTAR
49
#define DDR2C_MR_D CONFIG_SYS_DWCDDR21MCTL_MR
51
#define DDR2C_DLLCR0_D CONFIG_SYS_DWCDDR21MCTL_DLLCR0 /* 0-9 are same */
54
* parameters for the ahbc controller
56
#define AHBC_CR_A (CONFIG_FTAHBC020S_BASE + FTAHBC020S_CR)
57
#define AHBC_BSR6_A (CONFIG_FTAHBC020S_BASE + FTAHBC020S_SLAVE_BSR_6)
59
#define AHBC_BSR6_D CONFIG_SYS_FTAHBC020S_SLAVE_BSR_6
62
* parameters for the ANDES PCU controller
64
#define PCU_PCS4_A (CONFIG_ANDES_PCU_BASE + ANDES_PCU_PCS4)
65
#define PCU_PCS4_D CONFIG_SYS_ANDES_CPU_PCS4
68
* numeric 7 segment display
71
write32 CONFIG_DEBUG_LED, \num
75
* Waiting for SDRAM to set up
81
lwi $r1, [$r0+FTSDMC021_CR2]
86
#ifndef CONFIG_SKIP_LOWLEVEL_INIT
101
#if (defined(NDS32_EXT_FPU_DP) || defined(NDS32_EXT_FPU_SP))
116
write32 PCU_PCS4_A, 0x1102000f ! save data to PCS4
125
* config AHB Controller
128
write32 AHBC_BSR6_A, AHBC_BSR6_D
131
* config Synopsys DWC DDR2/DDR1 Memory Controller
136
write32 DDR2C_DCR_A, DDR2C_DCR_D ! 0x000020d4
140
* ebios: $r10->$r7, $r11->$r8, $r12->$r9, $r13->$r12, $r14->$r13
144
write32 DDR2C_IOCR_A, DDR2C_IOCR_D
147
write32 DDR2C_DRR_A, DDR2C_DRR_D ! 0x00034812
150
write32 DDR2C_DLLCR0_A, DDR2C_DLLCR0_D
151
write32 DDR2C_DLLCR1_A, DDR2C_DLLCR0_D
152
write32 DDR2C_DLLCR2_A, DDR2C_DLLCR0_D
153
write32 DDR2C_DLLCR3_A, DDR2C_DLLCR0_D
154
write32 DDR2C_DLLCR4_A, DDR2C_DLLCR0_D
155
write32 DDR2C_DLLCR5_A, DDR2C_DLLCR0_D
156
write32 DDR2C_DLLCR6_A, DDR2C_DLLCR0_D
157
write32 DDR2C_DLLCR7_A, DDR2C_DLLCR0_D
158
write32 DDR2C_DLLCR8_A, DDR2C_DLLCR0_D
159
write32 DDR2C_DLLCR9_A, DDR2C_DLLCR0_D
161
write32 DDR2C_RSLR0_A, DDR2C_RSLR0_D ! 0x00000040
163
write32 DDR2C_RDGR0_A, DDR2C_RDGR0_D ! 0x000055cf
166
write32 DDR2C_DTAR_A, DDR2C_DTAR_D ! 0x00100000
169
write32 DDR2C_MR_A, DDR2C_MR_D ! 0x00000852
171
write32 DDR2C_CCR_A, DDR2C_CCR_D
175
write32 DDR2C_CCR_A, DDR2C_CCR_D ! 0x80020000
177
/* Wait for ddr init state to be set */
181
/* Wait until the config initialization is finish */
190
! write32 DDR2C_CCR_A, DDR2C_CCR_D2 ! 0x40020004
192
/* Wait for ddr init state to be set */
196
/* wait until the ddr data trainning is complete */
215
#ifdef __NDS32_N1213_43U1H__ /* NDS32 V0 ISA - AG101 Only */
222
#endif /* __NDS32_N1213_43U1H__ */
227
#ifdef CONFIG_MEM_REMAP
229
* Copy ROM code to SDRAM base for memory remap layout.
230
* This is not the real relocation, the real relocation is the function
231
* relocate_code() is start.S which supports the systems is memory
235
* Doing memory remap is essential for preparing some non-OS or RTOS
238
* This is also a must on ADP-AG101 board.
239
* The reason is because the ROM/FLASH circuit on PCB board.
240
* AG101-A0 board has 2 jumpers MA17 and SW5 to configure which
241
* ROM/FLASH is used to boot.
243
* When SW5 = "0101", MA17 = LO, the ROM is connected to BANK0,
244
* and the FLASH is connected to BANK1.
245
* When SW5 = "1010", MA17 = HI, the ROM is disabled (still at BANK0),
246
* and the FLASH is connected to BANK0.
247
* It will occur problem when doing flash probing if the flash is at
248
* BANK0 (0x00000000) while memory remapping was skipped.
250
* Other board like ADP-AG101P may not enable this since there is only
251
* a FLASH connected to bank0.
254
li $r4, PHYS_SDRAM_0_AT_INIT /* 0x10000000 */
256
la $r1, relo_base /* get $pc or $lp */
258
sethi $r6, hi20(_end)
259
ori $r6, $r6, lo12(_end)
268
* MEM remap bit is operational
269
* - use it to map writeable memory at 0x00000000, in place of flash
270
* - before remap: flash/rom 0x00000000, sdram: 0x10000000-0x4fffffff
271
* - after remap: flash/rom 0x80000000, sdram: 0x00000000
274
setbf15 AHBC_CR_A, FTAHBC020S_CR_REMAP ! 0x1
276
#endif /* #ifdef CONFIG_MEM_REMAP */
283
* Some of Andes CPU version support FPU coprocessor, if so,
284
* and toolchain support FPU instruction set, we should enable it.
286
#if (defined(NDS32_EXT_FPU_DP) || defined(NDS32_EXT_FPU_SP))
288
mfsr $r0, $CPU_VER /* enable FPU if it exists */
291
beqz $r0, 1f /* skip if no COP */
292
mfsr $r0, $FUCOP_EXIST
294
beqz $r0, 1f /* skip if no FPU */
304
li $r8, (CONFIG_DEBUG_LED)
307
#endif /* #ifndef CONFIG_SKIP_LOWLEVEL_INIT */