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-rw-r--r--arch/arm/mach-omap2/include/mach/debug-macro.S127
1 files changed, 63 insertions, 64 deletions
diff --git a/arch/arm/mach-omap2/include/mach/debug-macro.S b/arch/arm/mach-omap2/include/mach/debug-macro.S
index 09331bbbda52..6a4d4136002e 100644
--- a/arch/arm/mach-omap2/include/mach/debug-macro.S
+++ b/arch/arm/mach-omap2/include/mach/debug-macro.S
@@ -31,95 +31,94 @@ omap_uart_lsr: .word 0
31 * the desired UART phys and virt addresses temporarily into 31 * the desired UART phys and virt addresses temporarily into
32 * the omap_uart_phys and omap_uart_virt above. 32 * the omap_uart_phys and omap_uart_virt above.
33 */ 33 */
34 .macro addruart, rx, tmp 34 .macro addruart, rp, rv
35 35
36 /* Use omap_uart_phys/virt if already configured */ 36 /* Use omap_uart_phys/virt if already configured */
3710: mrc p15, 0, \rx, c1, c0 3710: mrc p15, 0, \rp, c1, c0
38 tst \rx, #1 @ MMU enabled? 38 tst \rp, #1 @ MMU enabled?
39 ldreq \rx, =__virt_to_phys(omap_uart_phys) @ physical base address 39 ldreq \rp, =__virt_to_phys(omap_uart_phys) @ MMU not enabled
40 ldrne \rx, =omap_uart_virt @ virtual base address 40 ldrne \rp, =omap_uart_phys @ MMU enabled
41 ldr \rx, [\rx, #0] 41 add \rv, \rp, #4 @ omap_uart_virt
42 cmp \rx, #0 @ is port configured? 42 ldr \rp, [\rp, #0]
43 ldr \rv, [\rv, #0]
44 cmp \rp, #0 @ is port configured?
45 cmpne \rv, #0
43 bne 99f @ already configured 46 bne 99f @ already configured
44 47
45 /* Check the debug UART configuration set in uncompress.h */ 48 /* Check the debug UART configuration set in uncompress.h */
46 mrc p15, 0, \rx, c1, c0 49 mrc p15, 0, \rp, c1, c0
47 tst \rx, #1 @ MMU enabled? 50 tst \rp, #1 @ MMU enabled?
48 ldreq \rx, =OMAP_UART_INFO 51 ldreq \rp, =OMAP_UART_INFO @ MMU not enabled
49 ldrne \rx, =__phys_to_virt(OMAP_UART_INFO) 52 ldrne \rp, =__phys_to_virt(OMAP_UART_INFO) @ MMU enabled
50 ldr \rx, [\rx, #0] 53 ldr \rp, [\rp, #0]
51 54
52 /* Select the UART to use based on the UART1 scratchpad value */ 55 /* Select the UART to use based on the UART1 scratchpad value */
53 cmp \rx, #0 @ no port configured? 56 cmp \rp, #0 @ no port configured?
54 beq 21f @ if none, try to use UART1 57 beq 21f @ if none, try to use UART1
55 cmp \rx, #OMAP2UART1 @ OMAP2/3/4UART1 58 cmp \rp, #OMAP2UART1 @ OMAP2/3/4UART1
56 beq 21f @ configure OMAP2/3/4UART1 59 beq 21f @ configure OMAP2/3/4UART1
57 cmp \rx, #OMAP2UART2 @ OMAP2/3/4UART2 60 cmp \rp, #OMAP2UART2 @ OMAP2/3/4UART2
58 beq 22f @ configure OMAP2/3/4UART2 61 beq 22f @ configure OMAP2/3/4UART2
59 cmp \rx, #OMAP2UART3 @ only on 24xx 62 cmp \rp, #OMAP2UART3 @ only on 24xx
60 beq 23f @ configure OMAP2UART3 63 beq 23f @ configure OMAP2UART3
61 cmp \rx, #OMAP3UART3 @ only on 34xx 64 cmp \rp, #OMAP3UART3 @ only on 34xx
62 beq 33f @ configure OMAP3UART3 65 beq 33f @ configure OMAP3UART3
63 cmp \rx, #OMAP4UART3 @ only on 44xx 66 cmp \rp, #OMAP4UART3 @ only on 44xx
64 beq 43f @ configure OMAP4UART3 67 beq 43f @ configure OMAP4UART3
65 cmp \rx, #OMAP3UART4 @ only on 36xx 68 cmp \rp, #OMAP3UART4 @ only on 36xx
66 beq 34f @ configure OMAP3UART4 69 beq 34f @ configure OMAP3UART4
67 cmp \rx, #OMAP4UART4 @ only on 44xx 70 cmp \rp, #OMAP4UART4 @ only on 44xx
68 beq 44f @ configure OMAP4UART4 71 beq 44f @ configure OMAP4UART4
69 cmp \rx, #ZOOM_UART @ only on zoom2/3 72 cmp \rp, #ZOOM_UART @ only on zoom2/3
70 beq 95f @ configure ZOOM_UART 73 beq 95f @ configure ZOOM_UART
71 74
72 /* Configure the UART offset from the phys/virt base */ 75 /* Configure the UART offset from the phys/virt base */
7321: mov \rx, #UART_OFFSET(OMAP2_UART1_BASE) @ omap2/3/4 7621: mov \rp, #UART_OFFSET(OMAP2_UART1_BASE) @ omap2/3/4
74 b 98f 77 b 98f
7522: mov \rx, #UART_OFFSET(OMAP2_UART2_BASE) @ omap2/3/4 7822: mov \rp, #UART_OFFSET(OMAP2_UART2_BASE) @ omap2/3/4
76 b 98f 79 b 98f
7723: mov \rx, #UART_OFFSET(OMAP2_UART3_BASE) 8023: mov \rp, #UART_OFFSET(OMAP2_UART3_BASE)
78 b 98f 81 b 98f
7933: mov \rx, #UART_OFFSET(OMAP3_UART1_BASE) 8233: mov \rp, #UART_OFFSET(OMAP3_UART1_BASE)
80 add \rx, \rx, #0x00fb0000 83 add \rp, \rp, #0x00fb0000
81 add \rx, \rx, #0x00006000 @ OMAP3_UART3_BASE 84 add \rp, \rp, #0x00006000 @ OMAP3_UART3_BASE
82 b 98f 85 b 98f
8334: mov \rx, #UART_OFFSET(OMAP3_UART1_BASE) 8634: mov \rp, #UART_OFFSET(OMAP3_UART1_BASE)
84 add \rx, \rx, #0x00fb0000 87 add \rp, \rp, #0x00fb0000
85 add \rx, \rx, #0x00028000 @ OMAP3_UART4_BASE 88 add \rp, \rp, #0x00028000 @ OMAP3_UART4_BASE
86 b 98f 89 b 98f
8743: mov \rx, #UART_OFFSET(OMAP4_UART3_BASE) 9043: mov \rp, #UART_OFFSET(OMAP4_UART3_BASE)
88 b 98f 91 b 98f
8944: mov \rx, #UART_OFFSET(OMAP4_UART4_BASE) 9244: mov \rp, #UART_OFFSET(OMAP4_UART4_BASE)
90 b 98f 93 b 98f
9195: ldr \rx, =ZOOM_UART_BASE 9495: ldr \rp, =ZOOM_UART_BASE
92 mrc p15, 0, \tmp, c1, c0 95 mrc p15, 0, \rv, c1, c0
93 tst \tmp, #1 @ MMU enabled? 96 tst \rv, #1 @ MMU enabled?
94 ldreq \tmp, =__virt_to_phys(omap_uart_phys) 97 ldreq \rv, =__virt_to_phys(omap_uart_phys) @ MMU not enabled
95 ldrne \tmp, =omap_uart_phys 98 ldrne \rv, =omap_uart_phys @ MMU enabled
96 str \rx, [\tmp, #0] 99 str \rp, [\rv, #0]
97 ldr \rx, =ZOOM_UART_VIRT 100 ldr \rp, =ZOOM_UART_VIRT
98 ldreq \tmp, =__virt_to_phys(omap_uart_virt) 101 add \rv, \rv, #4 @ omap_uart_virt
99 ldrne \tmp, =omap_uart_virt 102 str \rp, [\rv, #0]
100 str \rx, [\tmp, #0] 103 mov \rp, #(UART_LSR << ZOOM_PORT_SHIFT)
101 mov \rx, #(UART_LSR << ZOOM_PORT_SHIFT) 104 add \rv, \rv, #4 @ omap_uart_lsr
102 ldreq \tmp, =__virt_to_phys(omap_uart_lsr) 105 str \rp, [\rv, #0]
103 ldrne \tmp, =omap_uart_lsr
104 str \rx, [\tmp, #0]
105 b 10b 106 b 10b
106 107
107 /* Store both phys and virt address for the uart */ 108 /* Store both phys and virt address for the uart */
10898: add \rx, \rx, #0x48000000 @ phys base 10998: add \rp, \rp, #0x48000000 @ phys base
109 mrc p15, 0, \tmp, c1, c0 110 mrc p15, 0, \rv, c1, c0
110 tst \tmp, #1 @ MMU enabled? 111 tst \rv, #1 @ MMU enabled?
111 ldreq \tmp, =__virt_to_phys(omap_uart_phys) 112 ldreq \rv, =__virt_to_phys(omap_uart_phys) @ MMU not enabled
112 ldrne \tmp, =omap_uart_phys 113 ldrne \rv, =omap_uart_phys @ MMU enabled
113 str \rx, [\tmp, #0] 114 str \rp, [\rv, #0]
114 sub \rx, \rx, #0x48000000 @ phys base 115 sub \rp, \rp, #0x48000000 @ phys base
115 add \rx, \rx, #0xfa000000 @ virt base 116 add \rp, \rp, #0xfa000000 @ virt base
116 ldreq \tmp, =__virt_to_phys(omap_uart_virt) 117 add \rv, \rv, #4 @ omap_uart_virt
117 ldrne \tmp, =omap_uart_virt 118 str \rp, [\rv, #0]
118 str \rx, [\tmp, #0] 119 mov \rp, #(UART_LSR << OMAP_PORT_SHIFT)
119 mov \rx, #(UART_LSR << OMAP_PORT_SHIFT) 120 add \rv, \rv, #4 @ omap_uart_lsr
120 ldreq \tmp, =__virt_to_phys(omap_uart_lsr) 121 str \rp, [\rv, #0]
121 ldrne \tmp, =omap_uart_lsr
122 str \rx, [\tmp, #0]
123 122
124 b 10b 123 b 10b
12599: 12499:
@@ -131,9 +130,9 @@ omap_uart_lsr: .word 0
131 130
132 .macro busyuart,rd,rx 131 .macro busyuart,rd,rx
1331001: mrc p15, 0, \rd, c1, c0 1321001: mrc p15, 0, \rd, c1, c0
134 tst \rd, #1 @ MMU enabled? 133 tst \rd, #1 @ MMU enabled?
135 ldreq \rd, =__virt_to_phys(omap_uart_lsr) 134 ldreq \rd, =__virt_to_phys(omap_uart_lsr) @ MMU not enabled
136 ldrne \rd, =omap_uart_lsr 135 ldrne \rd, =omap_uart_lsr @ MMU enabled
137 ldr \rd, [\rd, #0] 136 ldr \rd, [\rd, #0]
138 ldrb \rd, [\rx, \rd] 137 ldrb \rd, [\rx, \rd]
139 and \rd, \rd, #(UART_LSR_TEMT | UART_LSR_THRE) 138 and \rd, \rd, #(UART_LSR_TEMT | UART_LSR_THRE)
generated by cgit v1.2.2 (git 2.25.0) at 2025-01-08 23:56:50 -0500