diff options
Diffstat (limited to 'arch')
-rw-r--r-- | arch/blackfin/mach-bf548/head.S | 49 |
1 files changed, 4 insertions, 45 deletions
diff --git a/arch/blackfin/mach-bf548/head.S b/arch/blackfin/mach-bf548/head.S index 4d5cfeacb123..b0628164e5d9 100644 --- a/arch/blackfin/mach-bf548/head.S +++ b/arch/blackfin/mach-bf548/head.S | |||
@@ -73,25 +73,19 @@ ENTRY(_start_dma_code) | |||
73 | w[p0] = r0.l; | 73 | w[p0] = r0.l; |
74 | ssync; | 74 | ssync; |
75 | 75 | ||
76 | #if defined(CONFIG_BF54x) | 76 | /* enable self refresh via SRREQ */ |
77 | P2.H = hi(EBIU_RSTCTL); | 77 | P2.H = hi(EBIU_RSTCTL); |
78 | P2.L = lo(EBIU_RSTCTL); | 78 | P2.L = lo(EBIU_RSTCTL); |
79 | R0 = [P2]; | 79 | R0 = [P2]; |
80 | BITSET (R0, 3); | 80 | BITSET (R0, 3); |
81 | #else | ||
82 | P2.H = hi(EBIU_SDGCTL); | ||
83 | P2.L = lo(EBIU_SDGCTL); | ||
84 | R0 = [P2]; | ||
85 | BITSET (R0, 24); | ||
86 | #endif | ||
87 | [P2] = R0; | 81 | [P2] = R0; |
88 | SSYNC; | 82 | SSYNC; |
89 | #if defined(CONFIG_BF54x) | 83 | |
84 | /* wait for SRACK bit to be set */ | ||
90 | .LSRR_MODE: | 85 | .LSRR_MODE: |
91 | R0 = [P2]; | 86 | R0 = [P2]; |
92 | CC = BITTST(R0, 4); | 87 | CC = BITTST(R0, 4); |
93 | if !CC JUMP .LSRR_MODE; | 88 | if !CC JUMP .LSRR_MODE; |
94 | #endif | ||
95 | 89 | ||
96 | r0 = CONFIG_VCO_MULT & 63; /* Load the VCO multiplier */ | 90 | r0 = CONFIG_VCO_MULT & 63; /* Load the VCO multiplier */ |
97 | r0 = r0 << 9; /* Shift it over, */ | 91 | r0 = r0 << 9; /* Shift it over, */ |
@@ -123,7 +117,7 @@ ENTRY(_start_dma_code) | |||
123 | w[p0] = r0.l; | 117 | w[p0] = r0.l; |
124 | ssync; | 118 | ssync; |
125 | 119 | ||
126 | #if defined(CONFIG_BF54x) | 120 | /* disable self refresh by clearing SRREQ */ |
127 | P2.H = hi(EBIU_RSTCTL); | 121 | P2.H = hi(EBIU_RSTCTL); |
128 | P2.L = lo(EBIU_RSTCTL); | 122 | P2.L = lo(EBIU_RSTCTL); |
129 | R0 = [P2]; | 123 | R0 = [P2]; |
@@ -155,41 +149,6 @@ ENTRY(_start_dma_code) | |||
155 | r0.h = hi(mem_DDRCTL2); | 149 | r0.h = hi(mem_DDRCTL2); |
156 | [p0] = r0; | 150 | [p0] = r0; |
157 | ssync; | 151 | ssync; |
158 | #else | ||
159 | p0.l = lo(EBIU_SDRRC); | ||
160 | p0.h = hi(EBIU_SDRRC); | ||
161 | r0 = mem_SDRRC; | ||
162 | w[p0] = r0.l; | ||
163 | ssync; | ||
164 | |||
165 | p0.l = LO(EBIU_SDBCTL); | ||
166 | p0.h = HI(EBIU_SDBCTL); /* SDRAM Memory Bank Control Register */ | ||
167 | r0 = mem_SDBCTL; | ||
168 | w[p0] = r0.l; | ||
169 | ssync; | ||
170 | |||
171 | P2.H = hi(EBIU_SDGCTL); | ||
172 | P2.L = lo(EBIU_SDGCTL); | ||
173 | R0 = [P2]; | ||
174 | BITCLR (R0, 24); | ||
175 | p0.h = hi(EBIU_SDSTAT); | ||
176 | p0.l = lo(EBIU_SDSTAT); | ||
177 | r2.l = w[p0]; | ||
178 | cc = bittst(r2,3); | ||
179 | if !cc jump .Lskip; | ||
180 | NOP; | ||
181 | BITSET (R0, 23); | ||
182 | .Lskip: | ||
183 | [P2] = R0; | ||
184 | SSYNC; | ||
185 | |||
186 | R0.L = lo(mem_SDGCTL); | ||
187 | R0.H = hi(mem_SDGCTL); | ||
188 | R1 = [p2]; | ||
189 | R1 = R1 | R0; | ||
190 | [P2] = R1; | ||
191 | SSYNC; | ||
192 | #endif | ||
193 | 152 | ||
194 | RTS; | 153 | RTS; |
195 | ENDPROC(_start_dma_code) | 154 | ENDPROC(_start_dma_code) |