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authorPaul Walmsley <paul@pwsan.com>2009-05-12 19:27:10 -0400
committerpaul <paul@twilight.(none)>2009-05-12 19:27:10 -0400
commitb2abb271a5705bc80478e79d95fc9f3babc2605c (patch)
tree1c3272b5b66d9589a974a19d76a527c33e0f5677 /arch/arm/mach-omap2/sram34xx.S
parent98cfe5abf24c6d2f06b70fa8a8a111681bed3ed9 (diff)
OMAP3 SRAM: renumber registers to make space for argument passing
Renumber registers in omap3_sram_configure_core_dpll() assembly code to make space for additional parameters. Signed-off-by: Paul Walmsley <paul@pwsan.com>
Diffstat (limited to 'arch/arm/mach-omap2/sram34xx.S')
-rw-r--r--arch/arm/mach-omap2/sram34xx.S114
1 files changed, 57 insertions, 57 deletions
diff --git a/arch/arm/mach-omap2/sram34xx.S b/arch/arm/mach-omap2/sram34xx.S
index 9a454151c422..35131e5bc7d1 100644
--- a/arch/arm/mach-omap2/sram34xx.S
+++ b/arch/arm/mach-omap2/sram34xx.S
@@ -63,50 +63,50 @@ ENTRY(omap3_sram_configure_core_dpll)
63 mov r0, #0 @ return value 63 mov r0, #0 @ return value
64 ldmfd sp!, {r1-r12, pc} @ restore regs and return 64 ldmfd sp!, {r1-r12, pc} @ restore regs and return
65unlock_dll: 65unlock_dll:
66 ldr r4, omap3_sdrc_dlla_ctrl 66 ldr r11, omap3_sdrc_dlla_ctrl
67 ldr r5, [r4] 67 ldr r12, [r11]
68 orr r5, r5, #0x4 68 orr r12, r12, #0x4
69 str r5, [r4] @ (no OCP barrier needed) 69 str r12, [r11] @ (no OCP barrier needed)
70 bx lr 70 bx lr
71lock_dll: 71lock_dll:
72 ldr r4, omap3_sdrc_dlla_ctrl 72 ldr r11, omap3_sdrc_dlla_ctrl
73 ldr r5, [r4] 73 ldr r12, [r11]
74 bic r5, r5, #0x4 74 bic r12, r12, #0x4
75 str r5, [r4] @ (no OCP barrier needed) 75 str r12, [r11] @ (no OCP barrier needed)
76 bx lr 76 bx lr
77sdram_in_selfrefresh: 77sdram_in_selfrefresh:
78 ldr r4, omap3_sdrc_power @ read the SDRC_POWER register 78 ldr r11, omap3_sdrc_power @ read the SDRC_POWER register
79 ldr r5, [r4] @ read the contents of SDRC_POWER 79 ldr r12, [r11] @ read the contents of SDRC_POWER
80 mov r9, r5 @ keep a copy of SDRC_POWER bits 80 mov r9, r12 @ keep a copy of SDRC_POWER bits
81 orr r5, r5, #0x40 @ enable self refresh on idle req 81 orr r12, r12, #0x40 @ enable self refresh on idle req
82 bic r5, r5, #0x4 @ clear PWDENA 82 bic r12, r12, #0x4 @ clear PWDENA
83 str r5, [r4] @ write back to SDRC_POWER register 83 str r12, [r11] @ write back to SDRC_POWER register
84 ldr r5, [r4] @ posted-write barrier for SDRC 84 ldr r12, [r11] @ posted-write barrier for SDRC
85 ldr r4, omap3_cm_iclken1_core @ read the CM_ICLKEN1_CORE reg 85 ldr r11, omap3_cm_iclken1_core @ read the CM_ICLKEN1_CORE reg
86 ldr r5, [r4] 86 ldr r12, [r11]
87 bic r5, r5, #0x2 @ disable iclk bit for SDRC 87 bic r12, r12, #0x2 @ disable iclk bit for SDRC
88 str r5, [r4] 88 str r12, [r11]
89wait_sdrc_idle: 89wait_sdrc_idle:
90 ldr r4, omap3_cm_idlest1_core 90 ldr r11, omap3_cm_idlest1_core
91 ldr r5, [r4] 91 ldr r12, [r11]
92 and r5, r5, #0x2 @ check for SDRC idle 92 and r12, r12, #0x2 @ check for SDRC idle
93 cmp r5, #2 93 cmp r12, #2
94 bne wait_sdrc_idle 94 bne wait_sdrc_idle
95 bx lr 95 bx lr
96configure_core_dpll: 96configure_core_dpll:
97 ldr r4, omap3_cm_clksel1_pll 97 ldr r11, omap3_cm_clksel1_pll
98 ldr r5, [r4] 98 ldr r12, [r11]
99 ldr r6, core_m2_mask_val @ modify m2 for core dpll 99 ldr r10, core_m2_mask_val @ modify m2 for core dpll
100 and r5, r5, r6 100 and r12, r12, r10
101 orr r5, r5, r3, lsl #0x1B @ r3 contains the M2 val 101 orr r12, r12, r3, lsl #0x1B @ r3 contains the M2 val
102 str r5, [r4] 102 str r12, [r11]
103 ldr r5, [r4] @ posted-write barrier for CM 103 ldr r12, [r11] @ posted-write barrier for CM
104 mov r5, #0x800 @ wait for the clock to stabilise 104 mov r12, #0x800 @ wait for the clock to stabilise
105 cmp r3, #2 105 cmp r3, #2
106 bne wait_clk_stable 106 bne wait_clk_stable
107 bx lr 107 bx lr
108wait_clk_stable: 108wait_clk_stable:
109 subs r5, r5, #1 109 subs r12, r12, #1
110 bne wait_clk_stable 110 bne wait_clk_stable
111 nop 111 nop
112 nop 112 nop
@@ -120,42 +120,42 @@ wait_clk_stable:
120 nop 120 nop
121 bx lr 121 bx lr
122enable_sdrc: 122enable_sdrc:
123 ldr r4, omap3_cm_iclken1_core 123 ldr r11, omap3_cm_iclken1_core
124 ldr r5, [r4] 124 ldr r12, [r11]
125 orr r5, r5, #0x2 @ enable iclk bit for SDRC 125 orr r12, r12, #0x2 @ enable iclk bit for SDRC
126 str r5, [r4] 126 str r12, [r11]
127wait_sdrc_idle1: 127wait_sdrc_idle1:
128 ldr r4, omap3_cm_idlest1_core 128 ldr r11, omap3_cm_idlest1_core
129 ldr r5, [r4] 129 ldr r12, [r11]
130 and r5, r5, #0x2 130 and r12, r12, #0x2
131 cmp r5, #0 131 cmp r12, #0
132 bne wait_sdrc_idle1 132 bne wait_sdrc_idle1
133restore_sdrc_power_val: 133restore_sdrc_power_val:
134 ldr r4, omap3_sdrc_power 134 ldr r11, omap3_sdrc_power
135 str r9, [r4] @ restore SDRC_POWER, no barrier needed 135 str r9, [r11] @ restore SDRC_POWER, no barrier needed
136 bx lr 136 bx lr
137wait_dll_lock: 137wait_dll_lock:
138 ldr r4, omap3_sdrc_dlla_status 138 ldr r11, omap3_sdrc_dlla_status
139 ldr r5, [r4] 139 ldr r12, [r11]
140 and r5, r5, #0x4 140 and r12, r12, #0x4
141 cmp r5, #0x4 141 cmp r12, #0x4
142 bne wait_dll_lock 142 bne wait_dll_lock
143 bx lr 143 bx lr
144wait_dll_unlock: 144wait_dll_unlock:
145 ldr r4, omap3_sdrc_dlla_status 145 ldr r11, omap3_sdrc_dlla_status
146 ldr r5, [r4] 146 ldr r12, [r11]
147 and r5, r5, #0x4 147 and r12, r12, #0x4
148 cmp r5, #0x0 148 cmp r12, #0x0
149 bne wait_dll_unlock 149 bne wait_dll_unlock
150 bx lr 150 bx lr
151configure_sdrc: 151configure_sdrc:
152 ldr r4, omap3_sdrc_rfr_ctrl 152 ldr r11, omap3_sdrc_rfr_ctrl
153 str r0, [r4] 153 str r0, [r11]
154 ldr r4, omap3_sdrc_actim_ctrla 154 ldr r11, omap3_sdrc_actim_ctrla
155 str r1, [r4] 155 str r1, [r11]
156 ldr r4, omap3_sdrc_actim_ctrlb 156 ldr r11, omap3_sdrc_actim_ctrlb
157 str r2, [r4] 157 str r2, [r11]
158 ldr r2, [r4] @ posted-write barrier for SDRC 158 ldr r2, [r11] @ posted-write barrier for SDRC
159 bx lr 159 bx lr
160 160
161omap3_sdrc_power: 161omap3_sdrc_power: