change wifi driver to cypress

hc

2024-01-05 071106ecf68c401173c58808b1cf5f68cc50d390

 kernel/arch/powerpc/kernel/module_32.c
..
..
@@ -1,19 +1,7 @@
1
+// SPDX-License-Identifier: GPL-2.0-or-later
1
2
 /*  Kernel module help for PPC.
2
3
     Copyright (C) 2001 Rusty Russell.
3
4
 
4
-    This program is free software; you can redistribute it and/or modify
5
-    it under the terms of the GNU General Public License as published by
6
-    the Free Software Foundation; either version 2 of the License, or
7
-    (at your option) any later version.
8
-
9
-    This program is distributed in the hope that it will be useful,
10
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
11
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12
-    GNU General Public License for more details.
13
-
14
-    You should have received a copy of the GNU General Public License
15
-    along with this program; if not, write to the Free Software
16
-    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
17
5
 */
18
6
 
19
7
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
..
..
@@ -79,21 +67,6 @@
79
67
 		return 0;
80
68
 }
81
69
 
82
-static void relaswap(void *_x, void *_y, int size)
83
-{
84
-	uint32_t *x, *y, tmp;
85
-	int i;
86
-
87
-	y = (uint32_t *)_x;
88
-	x = (uint32_t *)_y;
89
-
90
-	for (i = 0; i < sizeof(Elf32_Rela) / sizeof(uint32_t); i++) {
91
-		tmp = x[i];
92
-		x[i] = y[i];
93
-		y[i] = tmp;
94
-	}
95
-}
96
-
97
70
 /* Get the potential trampolines size required of the init and
98
71
    non-init sections */
99
72
 static unsigned long get_plt_size(const Elf32_Ehdr *hdr,
..
..
@@ -130,7 +103,7 @@
130
103
 			 */
131
104
 			sort((void *)hdr + sechdrs[i].sh_offset,
132
105
 			     sechdrs[i].sh_size / sizeof(Elf32_Rela),
133
-			     sizeof(Elf32_Rela), relacmp, relaswap);
106
+			     sizeof(Elf32_Rela), relacmp, NULL);
134
107
 
135
108
 			ret += count_relocs((void *)hdr
136
109
 					     + sechdrs[i].sh_offset,
..
..
@@ -172,10 +145,12 @@
172
145
 
173
146
 static inline int entry_matches(struct ppc_plt_entry *entry, Elf32_Addr val)
174
147
 {
175
-	if (entry->jump[0] == 0x3d800000 + ((val + 0x8000) >> 16)
176
-	    && entry->jump[1] == 0x398c0000 + (val & 0xffff))
177
-		return 1;
178
-	return 0;
148
+	if (entry->jump[0] != (PPC_INST_ADDIS | __PPC_RT(R12) | PPC_HA(val)))
149
+		return 0;
150
+	if (entry->jump[1] != (PPC_INST_ADDI | __PPC_RT(R12) | __PPC_RA(R12) |
151
+			       PPC_LO(val)))
152
+		return 0;
153
+	return 1;
179
154
 }
180
155
 
181
156
 /* Set up a trampoline in the PLT to bounce us to the distant function */
..
..
@@ -200,10 +175,16 @@
200
175
 		entry++;
201
176
 	}
202
177
 
203
-	entry->jump[0] = 0x3d800000+((val+0x8000)>>16); /* lis r12,sym@ha */
204
-	entry->jump[1] = 0x398c0000 + (val&0xffff);     /* addi r12,r12,sym@l*/
205
-	entry->jump[2] = 0x7d8903a6;                    /* mtctr r12 */
206
-	entry->jump[3] = 0x4e800420;			/* bctr */
178
+	/*
179
+	 * lis r12, sym@ha
180
+	 * addi r12, r12, sym@l
181
+	 * mtctr r12
182
+	 * bctr
183
+	 */
184
+	entry->jump[0] = PPC_INST_ADDIS | __PPC_RT(R12) | PPC_HA(val);
185
+	entry->jump[1] = PPC_INST_ADDI | __PPC_RT(R12) | __PPC_RA(R12) | PPC_LO(val);
186
+	entry->jump[2] = PPC_INST_MTCTR | __PPC_RS(R12);
187
+	entry->jump[3] = PPC_INST_BCTR;
207
188
 
208
189
 	pr_debug("Initialized plt for 0x%x at %p\n", val, entry);
209
190
 	return (uint32_t)entry;