2 * linux/arch/m32r/boot/setup.S -- A setup code.
4 * Copyright (C) 2001, 2002 Hiroyuki Kondo, Hirokazu Takata,
10 #include <linux/linkage.h>
11 #include <asm/segment.h>
13 #include <asm/pgtable.h>
15 #include <linux/config.h>
16 #include <asm/assembler.h>
17 #include <asm/mmu_context.h>
21 * References to members of the boot_cpu_data structure.
24 #define CPU_PARAMS boot_cpu_data
25 #define M32R_MCICAR 0xfffffff0
26 #define M32R_MCDCAR 0xfffffff4
27 #define M32R_MCCR 0xfffffffc
28 #define M32R_BSCR0 0xffffffd2
31 #define BSEL0CR0 0x00ef5000
32 #define BSEL0CR1 0x00ef5004
33 #define BSEL1CR0 0x00ef5100
34 #define BSEL1CR1 0x00ef5104
35 #define BSEL0CR0_VAL 0x00000000
36 #define BSEL0CR1_VAL 0x01200100
37 #define BSEL1CR0_VAL 0x01018000
38 #define BSEL1CR1_VAL 0x00200001
41 #define SDRAMC_SDRF0 0x00ef6000
42 #define SDRAMC_SDRF1 0x00ef6004
43 #define SDRAMC_SDIR0 0x00ef6008
44 #define SDRAMC_SDIR1 0x00ef600c
45 #define SDRAMC_SD0ADR 0x00ef6020
46 #define SDRAMC_SD0ER 0x00ef6024
47 #define SDRAMC_SD0TR 0x00ef6028
48 #define SDRAMC_SD0MOD 0x00ef602c
49 #define SDRAMC_SD1ADR 0x00ef6040
50 #define SDRAMC_SD1ER 0x00ef6044
51 #define SDRAMC_SD1TR 0x00ef6048
52 #define SDRAMC_SD1MOD 0x00ef604c
53 #define SDRAM0 0x18000000
54 #define SDRAM1 0x1c000000
56 /*------------------------------------------------------------------------
60 /*------------------------------------------------------------------------
67 #if defined(CONFIG_CHIP_XNUX2)
68 ldi r0, #-2 ;LDIMM (r0, M32R_MCCR)
69 ldi r1, #0x0101 ; cache on (with invalidation)
70 ; ldi r1, #0x00 ; cache off
72 #elif defined(CONFIG_CHIP_M32700) || defined(CONFIG_CHIP_VDEC2) \
73 || defined(CONFIG_CHIP_OPSP)
74 ldi r0, #-4 ;LDIMM (r0, M32R_MCCR)
75 ldi r1, #0x73 ; cache on (with invalidation)
76 ; ldi r1, #0x00 ; cache off
78 #elif defined(CONFIG_CHIP_M32102)
79 ldi r0, #-4 ;LDIMM (r0, M32R_MCCR)
80 ldi r1, #0x101 ; cache on (with invalidation)
81 ; ldi r1, #0x00 ; cache off
84 #error unknown chip configuration
88 ;; if not BSP (CPU#0) goto AP_loop
89 seth r5, #shigh(M32R_CPUID_PORTL)
90 ld r5, @(low(M32R_CPUID_PORTL), r5)
92 #if !defined(CONFIG_PLAT_USRV)
94 ld24 r5, #0xeff2f8 ; IPICR7
95 ldi r6, #0x2 ; IPI to CPU1
102 * if with MMU, TLB on.
103 * if with no MMU, only jump.
110 LDIMM (r2, eit_vector) ; set EVB(cr5)
112 seth r0, #high(MMU_REG_BASE) ; Set MMU_REG_BASE higher
113 or3 r0, r0, #low(MMU_REG_BASE) ; Set MMU_REG_BASE lower
115 st r1, @(MATM_offset,r0) ; Set MATM (T bit ON)
116 ld r0, @(MATM_offset,r0) ; Check
118 seth r0,#high(M32R_MCDCAR)
119 or3 r0,r0,#low(M32R_MCDCAR)
122 #endif /* CONFIG_MMU */
136 seth r5, #high(__PAGE_OFFSET)
137 or3 r5, r5, #low(__PAGE_OFFSET)
141 ;; disable maskable interrupt
142 seth r4, #high(M32R_ICU_IMASK_PORTL)
143 or3 r4, r4, #low(M32R_ICU_IMASK_PORTL)
149 ;; LOOOOOOOOOOOOOOP!!!
158 #ifdef CONFIG_CHIP_M32700_TS1
163 #endif /* CONFIG_CHIP_M32700_TS1 */
164 #endif /* CONFIG_SMP */