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authorJeremy McNicoll <jeremy.mcnicoll@windriver.com>2008-05-05 18:17:24 -0400
committerKumar Gala <galak@kernel.crashing.org>2008-05-13 09:53:48 -0400
commitbfd123bf91704b88093673e615cc93329f820ab4 (patch)
treeec9080bdaaa6668fe294f1752400c73d00f55646 /arch/powerpc
parent73f5b8f942d6a2f178061dbbf9bcc54ca68ddf39 (diff)
[POWERPC] 85xx: SBC8548 - Add flash support and HW Rev reporting
The following adds local bus, flash and MTD partition nodes for sbc8548. As well, a compatible field for the soc node, so that of_platform_bus_probe() will pick it up. Something that is provided through this newly added epld node is the Hardware Revision which is now being utilized. Signed-off-by: Jeremy McNicoll <jeremy.mcnicoll@windriver.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc')
-rw-r--r--arch/powerpc/boot/dts/sbc8548.dts94
-rw-r--r--arch/powerpc/platforms/85xx/sbc8548.c30
2 files changed, 123 insertions, 1 deletions
diff --git a/arch/powerpc/boot/dts/sbc8548.dts b/arch/powerpc/boot/dts/sbc8548.dts
index b86e65d926c1..22d967178fe9 100644
--- a/arch/powerpc/boot/dts/sbc8548.dts
+++ b/arch/powerpc/boot/dts/sbc8548.dts
@@ -52,6 +52,99 @@
52 reg = <0x00000000 0x10000000>; 52 reg = <0x00000000 0x10000000>;
53 }; 53 };
54 54
55 localbus@e0000000 {
56 #address-cells = <2>;
57 #size-cells = <1>;
58 compatible = "simple-bus";
59 reg = <0xe0000000 0x5000>;
60 interrupt-parent = <&mpic>;
61
62 ranges = <0x0 0x0 0xff800000 0x00800000 /*8MB Flash*/
63 0x3 0x0 0xf0000000 0x04000000 /*64MB SDRAM*/
64 0x4 0x0 0xf4000000 0x04000000 /*64MB SDRAM*/
65 0x5 0x0 0xf8000000 0x00b10000 /* EPLD */
66 0x6 0x0 0xfb800000 0x04000000>; /*64MB Flash*/
67
68
69 flash@0,0 {
70 #address-cells = <1>;
71 #size-cells = <1>;
72 compatible = "cfi-flash";
73 reg = <0x0 0x0 0x800000>;
74 bank-width = <1>;
75 device-width = <1>;
76 partition@0x0 {
77 label = "space";
78 reg = <0x00000000 0x00100000>;
79 };
80 partition@0x100000 {
81 label = "bootloader";
82 reg = <0x00100000 0x00700000>;
83 read-only;
84 };
85 };
86
87 epld@5,0 {
88 compatible = "wrs,epld-localbus";
89 #address-cells = <2>;
90 #size-cells = <1>;
91 reg = <0x5 0x0 0x00b10000>;
92 ranges = <
93 0x0 0x0 0x5 0x000000 0x1fff /* LED */
94 0x1 0x0 0x5 0x100000 0x1fff /* Switches */
95 0x3 0x0 0x5 0x300000 0x1fff /* HW Rev. */
96 0xb 0x0 0x5 0xb00000 0x1fff /* EEPROM */
97 >;
98
99 led@0,0 {
100 compatible = "led";
101 reg = <0x0 0x0 0x1fff>;
102 };
103
104 switches@1,0 {
105 compatible = "switches";
106 reg = <0x1 0x0 0x1fff>;
107 };
108
109 hw-rev@3,0 {
110 compatible = "hw-rev";
111 reg = <0x3 0x0 0x1fff>;
112 };
113
114 eeprom@b,0 {
115 compatible = "eeprom";
116 reg = <0xb 0 0x1fff>;
117 };
118
119 };
120
121 alt-flash@6,0 {
122 #address-cells = <1>;
123 #size-cells = <1>;
124 reg = <0x6 0x0 0x04000000>;
125 compatible = "cfi-flash";
126 bank-width = <4>;
127 device-width = <1>;
128 partition@0x0 {
129 label = "bootloader";
130 reg = <0x00000000 0x00100000>;
131 read-only;
132 };
133 partition@0x00100000 {
134 label = "file-system";
135 reg = <0x00100000 0x01f00000>;
136 };
137 partition@0x02000000 {
138 label = "boot-config";
139 reg = <0x02000000 0x00100000>;
140 };
141 partition@0x02100000 {
142 label = "space";
143 reg = <0x02100000 0x01f00000>;
144 };
145 };
146 };
147
55 soc8548@e0000000 { 148 soc8548@e0000000 {
56 #address-cells = <1>; 149 #address-cells = <1>;
57 #size-cells = <1>; 150 #size-cells = <1>;
@@ -59,6 +152,7 @@
59 ranges = <0x00000000 0xe0000000 0x00100000>; 152 ranges = <0x00000000 0xe0000000 0x00100000>;
60 reg = <0xe0000000 0x00001000>; // CCSRBAR 153 reg = <0xe0000000 0x00001000>; // CCSRBAR
61 bus-frequency = <0>; 154 bus-frequency = <0>;
155 compatible = "simple-bus";
62 156
63 memory-controller@2000 { 157 memory-controller@2000 {
64 compatible = "fsl,8548-memory-controller"; 158 compatible = "fsl,8548-memory-controller";
diff --git a/arch/powerpc/platforms/85xx/sbc8548.c b/arch/powerpc/platforms/85xx/sbc8548.c
index 488facb99fe8..b9246ea0928a 100644
--- a/arch/powerpc/platforms/85xx/sbc8548.c
+++ b/arch/powerpc/platforms/85xx/sbc8548.c
@@ -49,6 +49,8 @@
49#include <sysdev/fsl_soc.h> 49#include <sysdev/fsl_soc.h>
50#include <sysdev/fsl_pci.h> 50#include <sysdev/fsl_pci.h>
51 51
52static int sbc_rev;
53
52static void __init sbc8548_pic_init(void) 54static void __init sbc8548_pic_init(void)
53{ 55{
54 struct mpic *mpic; 56 struct mpic *mpic;
@@ -79,6 +81,30 @@ static void __init sbc8548_pic_init(void)
79 mpic_init(mpic); 81 mpic_init(mpic);
80} 82}
81 83
84/* Extract the HW Rev from the EPLD on the board */
85static int __init sbc8548_hw_rev(void)
86{
87 struct device_node *np;
88 struct resource res;
89 unsigned int *rev;
90 int board_rev = 0;
91
92 np = of_find_compatible_node(NULL, NULL, "hw-rev");
93 if (np == NULL) {
94 printk("No HW-REV found in DTB.\n");
95 return -ENODEV;
96 }
97
98 of_address_to_resource(np, 0, &res);
99 of_node_put(np);
100
101 rev = ioremap(res.start,sizeof(unsigned int));
102 board_rev = (*rev) >> 28;
103 iounmap(rev);
104
105 return board_rev;
106}
107
82/* 108/*
83 * Setup the architecture 109 * Setup the architecture
84 */ 110 */
@@ -104,6 +130,7 @@ static void __init sbc8548_setup_arch(void)
104 } 130 }
105 } 131 }
106#endif 132#endif
133 sbc_rev = sbc8548_hw_rev();
107} 134}
108 135
109static void sbc8548_show_cpuinfo(struct seq_file *m) 136static void sbc8548_show_cpuinfo(struct seq_file *m)
@@ -115,7 +142,7 @@ static void sbc8548_show_cpuinfo(struct seq_file *m)
115 svid = mfspr(SPRN_SVR); 142 svid = mfspr(SPRN_SVR);
116 143
117 seq_printf(m, "Vendor\t\t: Wind River\n"); 144 seq_printf(m, "Vendor\t\t: Wind River\n");
118 seq_printf(m, "Machine\t\t: SBC8548\n"); 145 seq_printf(m, "Machine\t\t: SBC8548 v%d\n", sbc_rev);
119 seq_printf(m, "PVR\t\t: 0x%x\n", pvid); 146 seq_printf(m, "PVR\t\t: 0x%x\n", pvid);
120 seq_printf(m, "SVR\t\t: 0x%x\n", svid); 147 seq_printf(m, "SVR\t\t: 0x%x\n", svid);
121 148
@@ -130,6 +157,7 @@ static void sbc8548_show_cpuinfo(struct seq_file *m)
130static struct of_device_id __initdata of_bus_ids[] = { 157static struct of_device_id __initdata of_bus_ids[] = {
131 { .name = "soc", }, 158 { .name = "soc", },
132 { .type = "soc", }, 159 { .type = "soc", },
160 { .compatible = "simple-bus", },
133 {}, 161 {},
134}; 162};
135 163