mips/kernel/bmips_5xxx_init.S

31 	subu		t2, linesize, 1	;	\
34 	addiu		t1, t1, -1	;	\
59 #define CP0_BRCM_MODE		$22, 1
63 #define CP0_ICACHE_DATA_LO	$28, 1
67 #define CP0_ICACHE_DATA_HI	$29, 1
70 #define CP0_BRCM_MODE_Luc_MASK		(1 << 11)
71 #define	CP0_BRCM_CONFIG0_CWF_MASK	(1 << 20)
72 #define	CP0_BRCM_CONFIG0_TSE_MASK	(1 << 19)
73 #define CP0_BRCM_MODE_SET_MASK		(1 << 7)
95 #define BRCM_ZSC_CONFIG_LMB1En			1 << (15)
96 #define BRCM_ZSC_CONFIG_LMB0En			1 << (14)
111  * Returns:	v0 = i cache size, v1 = I cache line size
113  * Trashes:	v0, v1, a0, t0
122 	mfc0	a0, CP0_CONFIG, 1
130 	 * i) 0x0: 64, ii) 0x1: 128, iii) 0x2: 256, iv) 0x3: 512, v) 0x4: 1k
139 	li	v0, 0x40
140 	sllv	v0, v0, a0
158 	/* line size = 2 ^ (IL+1) */
160 	addi	a0, a0, 1
161 	li	v1, 1
164 	/* v0 now have sets per way, multiply it by line size now
168 	sll	v0, v0, a0
184 	/* v0 has the set size, multiply it by
188 	multu	v0, a0	/*multu is interlocked, so no need to insert nops */
189 	mflo	v0
190 	b	1f
194 	move	v0, zero
196 1:
206  * Returns:	v0 = d cache size, v1 = d cache line size
208  * Trashes:	v0, v1, a0, t0
215 	mfc0	a0, CP0_CONFIG, 1
223 	 * i) 0x0: 64, ii) 0x1: 128, iii) 0x2: 256, iv) 0x3: 512, v) 0x4: 1k
232 	li	v0, 0x40
233 	sllv	v0, v0, a0
250 	/* line size = 2 ^ (IL+1) */
252 	addi	a0, a0, 1
253 	li	v1, 1
256 	/* v0 now have sets per way, multiply it by line size now
260 	sll	v0, v0, a0
275 	/* v0 has the set size, multiply it by
279 	multu	v0, a0	/*multu is interlocked, so no need to insert nops */
280 	mflo	v0
282 	b	1f
286 	move	v0, zero
288 1:
324  * Trashes:	a0, v0, v1, t0, t1, t2, t8
351 	jal	size_i_cache	/* v0 = i-cache size, v1 = i-cache line size */
354 	/* run uncached in kseg 1 */
355 	la	k0, 1f
360 1:
376 	cacheop(a0, v0, v1, Index_Store_Tag_I)
381 	la	k0, 1f
387 1:
392 	jal	size_d_cache	/* v0 = d-cache size, v1 = d-cache line size */
397 	cacheop(a0, v0, v1, Index_Store_Tag_D)
426 	mfc0	t0, CP0_CACHEERR, 1
429 	mtc0	t0, CP0_CACHEERR, 1
524  * Trashes:	v0, v1, a0, a1
578  * Arguments:	a0=0 disable llmb, a0=1 enables llmb
620  * Trashes:	v0,v1,a0,a1,t8
636 	li	a0, 1
653 	 *set clock ratio by setting 1 to 'set'
716  * Trashes:	v0, v1, t0, t1, t2, t5, t7, t8