1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
|
From 45ba0675286e2a71f6a577833ab13b951bb7e31a Mon Sep 17 00:00:00 2001
From: John Crispin <blogic@openwrt.org>
Date: Sun, 16 Mar 2014 04:40:02 +0000
Subject: [PATCH 106/133] MIPS: ralink: add support for MT7620n
This is the small version of MT7620a.
Signed-off-by: John Crispin <blogic@openwrt.org>
---
arch/mips/include/asm/mach-ralink/mt7620.h | 7 ++-----
arch/mips/ralink/mt7620.c | 19 ++++++++++++-------
2 files changed, 14 insertions(+), 12 deletions(-)
--- a/arch/mips/include/asm/mach-ralink/mt7620.h
+++ b/arch/mips/include/asm/mach-ralink/mt7620.h
@@ -24,11 +24,8 @@
#define SYSC_REG_CPLL_CONFIG0 0x54
#define SYSC_REG_CPLL_CONFIG1 0x58
-#define MT7620N_CHIP_NAME0 0x33365452
-#define MT7620N_CHIP_NAME1 0x20203235
-
-#define MT7620A_CHIP_NAME0 0x3637544d
-#define MT7620A_CHIP_NAME1 0x20203032
+#define MT7620_CHIP_NAME0 0x3637544d
+#define MT7620_CHIP_NAME1 0x20203032
#define CHIP_REV_PKG_MASK 0x1
#define CHIP_REV_PKG_SHIFT 16
--- a/arch/mips/ralink/mt7620.c
+++ b/arch/mips/ralink/mt7620.c
@@ -226,22 +226,27 @@ void prom_soc_init(struct ralink_soc_inf
u32 cfg0;
u32 pmu0;
u32 pmu1;
+ u32 bga;
n0 = __raw_readl(sysc + SYSC_REG_CHIP_NAME0);
n1 = __raw_readl(sysc + SYSC_REG_CHIP_NAME1);
+ rev = __raw_readl(sysc + SYSC_REG_CHIP_REV);
+ bga = (rev >> CHIP_REV_PKG_SHIFT) & CHIP_REV_PKG_MASK;
- if (n0 == MT7620N_CHIP_NAME0 && n1 == MT7620N_CHIP_NAME1) {
- name = "MT7620N";
- soc_info->compatible = "ralink,mt7620n-soc";
- } else if (n0 == MT7620A_CHIP_NAME0 && n1 == MT7620A_CHIP_NAME1) {
+ if (n0 != MT7620_CHIP_NAME0 || n1 != MT7620_CHIP_NAME1)
+ panic("mt7620: unknown SoC, n0:%08x n1:%08x\n", n0, n1);
+
+ if (bga) {
name = "MT7620A";
soc_info->compatible = "ralink,mt7620a-soc";
} else {
- panic("mt7620: unknown SoC, n0:%08x n1:%08x\n", n0, n1);
+ name = "MT7620N";
+ soc_info->compatible = "ralink,mt7620n-soc";
+#ifdef CONFIG_PCI
+ panic("mt7620n is only supported for non pci kernels");
+#endif
}
- rev = __raw_readl(sysc + SYSC_REG_CHIP_REV);
-
snprintf(soc_info->sys_type, RAMIPS_SYS_TYPE_LEN,
"Ralink %s ver:%u eco:%u",
name,
|
