2 * linux/arch/m32r/boot/setup.S -- A setup code.
4 * Copyright (C) 2001-2005 Hiroyuki Kondo, Hirokazu Takata,
5 * Hitoshi Yamamoto, Hayato Fujiwara
9 #include <linux/linkage.h>
10 #include <asm/segment.h>
12 #include <asm/pgtable.h>
14 #include <asm/assembler.h>
15 #include <asm/mmu_context.h>
19 * References to members of the boot_cpu_data structure.
22 #define CPU_PARAMS boot_cpu_data
23 #define M32R_MCICAR 0xfffffff0
24 #define M32R_MCDCAR 0xfffffff4
25 #define M32R_MCCR 0xfffffffc
26 #define M32R_BSCR0 0xffffffd2
29 #define BSEL0CR0 0x00ef5000
30 #define BSEL0CR1 0x00ef5004
31 #define BSEL1CR0 0x00ef5100
32 #define BSEL1CR1 0x00ef5104
33 #define BSEL0CR0_VAL 0x00000000
34 #define BSEL0CR1_VAL 0x01200100
35 #define BSEL1CR0_VAL 0x01018000
36 #define BSEL1CR1_VAL 0x00200001
39 #define SDRAMC_SDRF0 0x00ef6000
40 #define SDRAMC_SDRF1 0x00ef6004
41 #define SDRAMC_SDIR0 0x00ef6008
42 #define SDRAMC_SDIR1 0x00ef600c
43 #define SDRAMC_SD0ADR 0x00ef6020
44 #define SDRAMC_SD0ER 0x00ef6024
45 #define SDRAMC_SD0TR 0x00ef6028
46 #define SDRAMC_SD0MOD 0x00ef602c
47 #define SDRAMC_SD1ADR 0x00ef6040
48 #define SDRAMC_SD1ER 0x00ef6044
49 #define SDRAMC_SD1TR 0x00ef6048
50 #define SDRAMC_SD1MOD 0x00ef604c
51 #define SDRAM0 0x18000000
52 #define SDRAM1 0x1c000000
54 /*------------------------------------------------------------------------
58 /*------------------------------------------------------------------------
65 #if defined(CONFIG_CHIP_XNUX2)
66 ldi r0, #-2 ;LDIMM (r0, M32R_MCCR)
67 ldi r1, #0x0101 ; cache on (with invalidation)
68 ; ldi r1, #0x00 ; cache off
70 #elif defined(CONFIG_CHIP_M32700) || defined(CONFIG_CHIP_VDEC2) \
71 || defined(CONFIG_CHIP_OPSP)
72 ldi r0, #-4 ;LDIMM (r0, M32R_MCCR)
73 ldi r1, #0x73 ; cache on (with invalidation)
74 ; ldi r1, #0x00 ; cache off
76 #elif defined(CONFIG_CHIP_M32102)
77 ldi r0, #-4 ;LDIMM (r0, M32R_MCCR)
78 ldi r1, #0x101 ; cache on (with invalidation)
79 ; ldi r1, #0x00 ; cache off
81 #elif defined(CONFIG_CHIP_M32104)
83 seth r1, #0x0060 ; from 0x00600000
84 or3 r1, r1, #0x0005 ; size 2MB
86 seth r1, #0x0100 ; from 0x01000000
87 or3 r1, r1, #0x0003 ; size 16MB
89 seth r1, #0x0200 ; from 0x02000000
90 or3 r1, r1, #0x0002 ; size 32MB
92 ldi r0, #-4 ;LDIMM (r0, M32R_MCCR)
93 ldi r1, #0x703 ; cache on (with invalidation)
96 #error unknown chip configuration
100 ;; if not BSP (CPU#0) goto AP_loop
101 seth r5, #shigh(M32R_CPUID_PORTL)
102 ld r5, @(low(M32R_CPUID_PORTL), r5)
104 #if !defined(CONFIG_PLAT_USRV)
106 ld24 r5, #0xeff2f8 ; IPICR7
107 ldi r6, #0x2 ; IPI to CPU1
114 * if with MMU, TLB on.
115 * if with no MMU, only jump.
122 LDIMM (r2, eit_vector) ; set EVB(cr5)
124 seth r0, #high(MMU_REG_BASE) ; Set MMU_REG_BASE higher
125 or3 r0, r0, #low(MMU_REG_BASE) ; Set MMU_REG_BASE lower
127 st r1, @(MATM_offset,r0) ; Set MATM (T bit ON)
128 ld r0, @(MATM_offset,r0) ; Check
130 #if defined(CONFIG_CHIP_M32700)
131 seth r0,#high(M32R_MCDCAR)
132 or3 r0,r0,#low(M32R_MCDCAR)
135 #elif defined(CONFIG_CHIP_M32104)
136 LDIMM (r2, eit_vector) ; set EVB(cr5)
139 #endif /* CONFIG_MMU */
153 seth r5, #high(__PAGE_OFFSET)
154 or3 r5, r5, #low(__PAGE_OFFSET)
158 ;; disable maskable interrupt
159 seth r4, #high(M32R_ICU_IMASK_PORTL)
160 or3 r4, r4, #low(M32R_ICU_IMASK_PORTL)
166 ;; LOOOOOOOOOOOOOOP!!!
175 #ifdef CONFIG_CHIP_M32700_TS1
180 #endif /* CONFIG_CHIP_M32700_TS1 */
181 #endif /* CONFIG_SMP */