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 <linux/config.h>
15 #include <asm/assembler.h>
16 #include <asm/mmu_context.h>
20 * References to members of the boot_cpu_data structure.
23 #define CPU_PARAMS boot_cpu_data
24 #define M32R_MCICAR 0xfffffff0
25 #define M32R_MCDCAR 0xfffffff4
26 #define M32R_MCCR 0xfffffffc
27 #define M32R_BSCR0 0xffffffd2
30 #define BSEL0CR0 0x00ef5000
31 #define BSEL0CR1 0x00ef5004
32 #define BSEL1CR0 0x00ef5100
33 #define BSEL1CR1 0x00ef5104
34 #define BSEL0CR0_VAL 0x00000000
35 #define BSEL0CR1_VAL 0x01200100
36 #define BSEL1CR0_VAL 0x01018000
37 #define BSEL1CR1_VAL 0x00200001
40 #define SDRAMC_SDRF0 0x00ef6000
41 #define SDRAMC_SDRF1 0x00ef6004
42 #define SDRAMC_SDIR0 0x00ef6008
43 #define SDRAMC_SDIR1 0x00ef600c
44 #define SDRAMC_SD0ADR 0x00ef6020
45 #define SDRAMC_SD0ER 0x00ef6024
46 #define SDRAMC_SD0TR 0x00ef6028
47 #define SDRAMC_SD0MOD 0x00ef602c
48 #define SDRAMC_SD1ADR 0x00ef6040
49 #define SDRAMC_SD1ER 0x00ef6044
50 #define SDRAMC_SD1TR 0x00ef6048
51 #define SDRAMC_SD1MOD 0x00ef604c
52 #define SDRAM0 0x18000000
53 #define SDRAM1 0x1c000000
55 /*------------------------------------------------------------------------
59 /*------------------------------------------------------------------------
66 #if defined(CONFIG_CHIP_XNUX2)
67 ldi r0, #-2 ;LDIMM (r0, M32R_MCCR)
68 ldi r1, #0x0101 ; cache on (with invalidation)
69 ; ldi r1, #0x00 ; cache off
71 #elif defined(CONFIG_CHIP_M32700) || defined(CONFIG_CHIP_VDEC2) \
72 || defined(CONFIG_CHIP_OPSP)
73 ldi r0, #-4 ;LDIMM (r0, M32R_MCCR)
74 ldi r1, #0x73 ; cache on (with invalidation)
75 ; ldi r1, #0x00 ; cache off
77 #elif defined(CONFIG_CHIP_M32102)
78 ldi r0, #-4 ;LDIMM (r0, M32R_MCCR)
79 ldi r1, #0x101 ; cache on (with invalidation)
80 ; ldi r1, #0x00 ; cache off
82 #elif defined(CONFIG_CHIP_M32104)
84 seth r1, #0x0060 ; from 0x00600000
85 or3 r1, r1, #0x0005 ; size 2MB
87 seth r1, #0x0100 ; from 0x01000000
88 or3 r1, r1, #0x0003 ; size 16MB
90 seth r1, #0x0200 ; from 0x02000000
91 or3 r1, r1, #0x0002 ; size 32MB
93 ldi r0, #-4 ;LDIMM (r0, M32R_MCCR)
94 ldi r1, #0x703 ; cache on (with invalidation)
97 #error unknown chip configuration
101 ;; if not BSP (CPU#0) goto AP_loop
102 seth r5, #shigh(M32R_CPUID_PORTL)
103 ld r5, @(low(M32R_CPUID_PORTL), r5)
105 #if !defined(CONFIG_PLAT_USRV)
107 ld24 r5, #0xeff2f8 ; IPICR7
108 ldi r6, #0x2 ; IPI to CPU1
115 * if with MMU, TLB on.
116 * if with no MMU, only jump.
123 LDIMM (r2, eit_vector) ; set EVB(cr5)
125 seth r0, #high(MMU_REG_BASE) ; Set MMU_REG_BASE higher
126 or3 r0, r0, #low(MMU_REG_BASE) ; Set MMU_REG_BASE lower
128 st r1, @(MATM_offset,r0) ; Set MATM (T bit ON)
129 ld r0, @(MATM_offset,r0) ; Check
131 #if defined(CONFIG_CHIP_M32700)
132 seth r0,#high(M32R_MCDCAR)
133 or3 r0,r0,#low(M32R_MCDCAR)
136 #elif defined(CONFIG_CHIP_M32104)
137 LDIMM (r2, eit_vector) ; set EVB(cr5)
140 #endif /* CONFIG_MMU */
154 seth r5, #high(__PAGE_OFFSET)
155 or3 r5, r5, #low(__PAGE_OFFSET)
159 ;; disable maskable interrupt
160 seth r4, #high(M32R_ICU_IMASK_PORTL)
161 or3 r4, r4, #low(M32R_ICU_IMASK_PORTL)
167 ;; LOOOOOOOOOOOOOOP!!!
176 #ifdef CONFIG_CHIP_M32700_TS1
181 #endif /* CONFIG_CHIP_M32700_TS1 */
182 #endif /* CONFIG_SMP */