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-rw-r--r--arch/arm/mach-highbank/Makefile2
-rw-r--r--arch/arm/mach-highbank/Makefile.boot1
-rw-r--r--arch/arm/mach-highbank/clock.c62
-rw-r--r--arch/arm/mach-highbank/core.h9
-rw-r--r--arch/arm/mach-highbank/highbank.c145
-rw-r--r--arch/arm/mach-highbank/include/mach/debug-macro.S19
-rw-r--r--arch/arm/mach-highbank/include/mach/entry-macro.S7
-rw-r--r--arch/arm/mach-highbank/include/mach/gpio.h1
-rw-r--r--arch/arm/mach-highbank/include/mach/io.h7
-rw-r--r--arch/arm/mach-highbank/include/mach/irqs.h6
-rw-r--r--arch/arm/mach-highbank/include/mach/memory.h1
-rw-r--r--arch/arm/mach-highbank/include/mach/system.h26
-rw-r--r--arch/arm/mach-highbank/include/mach/timex.h6
-rw-r--r--arch/arm/mach-highbank/include/mach/uncompress.h9
-rw-r--r--arch/arm/mach-highbank/include/mach/vmalloc.h1
-rw-r--r--arch/arm/mach-highbank/lluart.c34
-rw-r--r--arch/arm/mach-highbank/sysregs.h52
-rw-r--r--arch/arm/mach-highbank/system.c33
18 files changed, 421 insertions, 0 deletions
diff --git a/arch/arm/mach-highbank/Makefile b/arch/arm/mach-highbank/Makefile
new file mode 100644
index 000000000000..da7f81a69530
--- /dev/null
+++ b/arch/arm/mach-highbank/Makefile
@@ -0,0 +1,2 @@
1obj-y := clock.o highbank.o system.o
2obj-$(CONFIG_DEBUG_HIGHBANK_UART) += lluart.o
diff --git a/arch/arm/mach-highbank/Makefile.boot b/arch/arm/mach-highbank/Makefile.boot
new file mode 100644
index 000000000000..dae9661a7689
--- /dev/null
+++ b/arch/arm/mach-highbank/Makefile.boot
@@ -0,0 +1 @@
zreladdr-y := 0x00008000
diff --git a/arch/arm/mach-highbank/clock.c b/arch/arm/mach-highbank/clock.c
new file mode 100644
index 000000000000..c25a2ae4fde1
--- /dev/null
+++ b/arch/arm/mach-highbank/clock.c
@@ -0,0 +1,62 @@
1/*
2 * Copyright 2011 Calxeda, Inc.
3 *
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms and conditions of the GNU General Public License,
6 * version 2, as published by the Free Software Foundation.
7 *
8 * This program is distributed in the hope it will be useful, but WITHOUT
9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
10 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
11 * more details.
12 *
13 * You should have received a copy of the GNU General Public License along with
14 * this program. If not, see <http://www.gnu.org/licenses/>.
15 */
16#include <linux/module.h>
17#include <linux/kernel.h>
18#include <linux/errno.h>
19#include <linux/clk.h>
20#include <linux/clkdev.h>
21
22struct clk {
23 unsigned long rate;
24};
25
26int clk_enable(struct clk *clk)
27{
28 return 0;
29}
30
31void clk_disable(struct clk *clk)
32{}
33
34unsigned long clk_get_rate(struct clk *clk)
35{
36 return clk->rate;
37}
38
39long clk_round_rate(struct clk *clk, unsigned long rate)
40{
41 return clk->rate;
42}
43
44int clk_set_rate(struct clk *clk, unsigned long rate)
45{
46 return 0;
47}
48
49static struct clk eclk = { .rate = 200000000 };
50static struct clk pclk = { .rate = 150000000 };
51
52static struct clk_lookup lookups[] = {
53 { .clk = &pclk, .con_id = "apb_pclk", },
54 { .clk = &pclk, .dev_id = "sp804", },
55 { .clk = &eclk, .dev_id = "ffe0e000.sdhci", },
56 { .clk = &pclk, .dev_id = "fff36000.serial", },
57};
58
59void __init highbank_clocks_init(void)
60{
61 clkdev_add_table(lookups, ARRAY_SIZE(lookups));
62}
diff --git a/arch/arm/mach-highbank/core.h b/arch/arm/mach-highbank/core.h
new file mode 100644
index 000000000000..7e33fc94cd1e
--- /dev/null
+++ b/arch/arm/mach-highbank/core.h
@@ -0,0 +1,9 @@
1extern void highbank_set_cpu_jump(int cpu, void *jump_addr);
2extern void highbank_clocks_init(void);
3extern void __iomem *scu_base_addr;
4#ifdef CONFIG_DEBUG_HIGHBANK_UART
5extern void highbank_lluart_map_io(void);
6#else
7static inline void highbank_lluart_map_io(void) {}
8#endif
9
diff --git a/arch/arm/mach-highbank/highbank.c b/arch/arm/mach-highbank/highbank.c
new file mode 100644
index 000000000000..b82dcf08e747
--- /dev/null
+++ b/arch/arm/mach-highbank/highbank.c
@@ -0,0 +1,145 @@
1/*
2 * Copyright 2010-2011 Calxeda, Inc.
3 *
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms and conditions of the GNU General Public License,
6 * version 2, as published by the Free Software Foundation.
7 *
8 * This program is distributed in the hope it will be useful, but WITHOUT
9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
10 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
11 * more details.
12 *
13 * You should have received a copy of the GNU General Public License along with
14 * this program. If not, see <http://www.gnu.org/licenses/>.
15 */
16#include <linux/clk.h>
17#include <linux/clkdev.h>
18#include <linux/io.h>
19#include <linux/irq.h>
20#include <linux/irqdomain.h>
21#include <linux/of.h>
22#include <linux/of_irq.h>
23#include <linux/of_platform.h>
24#include <linux/of_address.h>
25
26#include <asm/cacheflush.h>
27#include <asm/unified.h>
28#include <asm/smp_scu.h>
29#include <asm/hardware/arm_timer.h>
30#include <asm/hardware/timer-sp.h>
31#include <asm/hardware/gic.h>
32#include <asm/hardware/cache-l2x0.h>
33#include <asm/mach/arch.h>
34#include <asm/mach/map.h>
35#include <asm/mach/time.h>
36#include <mach/irqs.h>
37
38#include "core.h"
39#include "sysregs.h"
40
41void __iomem *sregs_base;
42
43#define HB_SCU_VIRT_BASE 0xfee00000
44void __iomem *scu_base_addr = ((void __iomem *)(HB_SCU_VIRT_BASE));
45
46static struct map_desc scu_io_desc __initdata = {
47 .virtual = HB_SCU_VIRT_BASE,
48 .pfn = 0, /* run-time */
49 .length = SZ_4K,
50 .type = MT_DEVICE,
51};
52
53static void __init highbank_scu_map_io(void)
54{
55 unsigned long base;
56
57 /* Get SCU base */
58 asm("mrc p15, 4, %0, c15, c0, 0" : "=r" (base));
59
60 scu_io_desc.pfn = __phys_to_pfn(base);
61 iotable_init(&scu_io_desc, 1);
62}
63
64static void __init highbank_map_io(void)
65{
66 highbank_scu_map_io();
67 highbank_lluart_map_io();
68}
69
70#define HB_JUMP_TABLE_PHYS(cpu) (0x40 + (0x10 * (cpu)))
71#define HB_JUMP_TABLE_VIRT(cpu) phys_to_virt(HB_JUMP_TABLE_PHYS(cpu))
72
73void highbank_set_cpu_jump(int cpu, void *jump_addr)
74{
75 writel(BSYM(virt_to_phys(jump_addr)), HB_JUMP_TABLE_VIRT(cpu));
76 __cpuc_flush_dcache_area(HB_JUMP_TABLE_VIRT(cpu), 16);
77 outer_clean_range(HB_JUMP_TABLE_PHYS(cpu),
78 HB_JUMP_TABLE_PHYS(cpu) + 15);
79}
80
81const static struct of_device_id irq_match[] = {
82 { .compatible = "arm,cortex-a9-gic", .data = gic_of_init, },
83 {}
84};
85
86static void __init highbank_init_irq(void)
87{
88 of_irq_init(irq_match);
89 l2x0_of_init(0, ~0UL);
90}
91
92static void __init highbank_timer_init(void)
93{
94 int irq;
95 struct device_node *np;
96 void __iomem *timer_base;
97
98 /* Map system registers */
99 np = of_find_compatible_node(NULL, NULL, "calxeda,hb-sregs");
100 sregs_base = of_iomap(np, 0);
101 WARN_ON(!sregs_base);
102
103 np = of_find_compatible_node(NULL, NULL, "arm,sp804");
104 timer_base = of_iomap(np, 0);
105 WARN_ON(!timer_base);
106 irq = irq_of_parse_and_map(np, 0);
107
108 highbank_clocks_init();
109
110 sp804_clocksource_init(timer_base + 0x20, "timer1");
111 sp804_clockevents_init(timer_base, irq, "timer0");
112}
113
114static struct sys_timer highbank_timer = {
115 .init = highbank_timer_init,
116};
117
118static void highbank_power_off(void)
119{
120 hignbank_set_pwr_shutdown();
121 scu_power_mode(scu_base_addr, SCU_PM_POWEROFF);
122
123 while (1)
124 cpu_do_idle();
125}
126
127static void __init highbank_init(void)
128{
129 pm_power_off = highbank_power_off;
130
131 of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
132}
133
134static const char *highbank_match[] __initconst = {
135 "calxeda,highbank",
136 NULL,
137};
138
139DT_MACHINE_START(HIGHBANK, "Highbank")
140 .map_io = highbank_map_io,
141 .init_irq = highbank_init_irq,
142 .timer = &highbank_timer,
143 .init_machine = highbank_init,
144 .dt_compat = highbank_match,
145MACHINE_END
diff --git a/arch/arm/mach-highbank/include/mach/debug-macro.S b/arch/arm/mach-highbank/include/mach/debug-macro.S
new file mode 100644
index 000000000000..cb57fe5bcd04
--- /dev/null
+++ b/arch/arm/mach-highbank/include/mach/debug-macro.S
@@ -0,0 +1,19 @@
1/*
2 * Debugging macro include header
3 *
4 * Copyright (C) 1994-1999 Russell King
5 * Moved from linux/arch/arm/kernel/debug.S by Ben Dooks
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 */
11
12 .macro addruart,rp,rv,tmp
13 movw \rv, #0x6000
14 movt \rv, #0xfee3
15 movw \rp, #0x6000
16 movt \rp, #0xfff3
17 .endm
18
19#include <asm/hardware/debug-pl01x.S>
diff --git a/arch/arm/mach-highbank/include/mach/entry-macro.S b/arch/arm/mach-highbank/include/mach/entry-macro.S
new file mode 100644
index 000000000000..73c11297509e
--- /dev/null
+++ b/arch/arm/mach-highbank/include/mach/entry-macro.S
@@ -0,0 +1,7 @@
1#include <asm/hardware/entry-macro-gic.S>
2
3 .macro disable_fiq
4 .endm
5
6 .macro arch_ret_to_user, tmp1, tmp2
7 .endm
diff --git a/arch/arm/mach-highbank/include/mach/gpio.h b/arch/arm/mach-highbank/include/mach/gpio.h
new file mode 100644
index 000000000000..40a8c178f10d
--- /dev/null
+++ b/arch/arm/mach-highbank/include/mach/gpio.h
@@ -0,0 +1 @@
/* empty */
diff --git a/arch/arm/mach-highbank/include/mach/io.h b/arch/arm/mach-highbank/include/mach/io.h
new file mode 100644
index 000000000000..70cfa3ba7697
--- /dev/null
+++ b/arch/arm/mach-highbank/include/mach/io.h
@@ -0,0 +1,7 @@
1#ifndef __MACH_IO_H
2#define __MACH_IO_H
3
4#define __io(a) ({ (void)(a); __typesafe_io(0); })
5#define __mem_pci(a) (a)
6
7#endif
diff --git a/arch/arm/mach-highbank/include/mach/irqs.h b/arch/arm/mach-highbank/include/mach/irqs.h
new file mode 100644
index 000000000000..9746aab14e9a
--- /dev/null
+++ b/arch/arm/mach-highbank/include/mach/irqs.h
@@ -0,0 +1,6 @@
1#ifndef __MACH_IRQS_H
2#define __MACH_IRQS_H
3
4#define NR_IRQS 192
5
6#endif
diff --git a/arch/arm/mach-highbank/include/mach/memory.h b/arch/arm/mach-highbank/include/mach/memory.h
new file mode 100644
index 000000000000..40a8c178f10d
--- /dev/null
+++ b/arch/arm/mach-highbank/include/mach/memory.h
@@ -0,0 +1 @@
/* empty */
diff --git a/arch/arm/mach-highbank/include/mach/system.h b/arch/arm/mach-highbank/include/mach/system.h
new file mode 100644
index 000000000000..7e8192296cae
--- /dev/null
+++ b/arch/arm/mach-highbank/include/mach/system.h
@@ -0,0 +1,26 @@
1/*
2 * Copyright 2010-2011 Calxeda, Inc.
3 *
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms and conditions of the GNU General Public License,
6 * version 2, as published by the Free Software Foundation.
7 *
8 * This program is distributed in the hope it will be useful, but WITHOUT
9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
10 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
11 * more details.
12 *
13 * You should have received a copy of the GNU General Public License along with
14 * this program. If not, see <http://www.gnu.org/licenses/>.
15 */
16#ifndef __MACH_SYSTEM_H
17#define __MACH_SYSTEM_H
18
19static inline void arch_idle(void)
20{
21 cpu_do_idle();
22}
23
24extern void arch_reset(char mode, const char *cmd);
25
26#endif
diff --git a/arch/arm/mach-highbank/include/mach/timex.h b/arch/arm/mach-highbank/include/mach/timex.h
new file mode 100644
index 000000000000..88dac7a55a97
--- /dev/null
+++ b/arch/arm/mach-highbank/include/mach/timex.h
@@ -0,0 +1,6 @@
1#ifndef __MACH_TIMEX_H
2#define __MACH_TIMEX_H
3
4#define CLOCK_TICK_RATE 1000000
5
6#endif
diff --git a/arch/arm/mach-highbank/include/mach/uncompress.h b/arch/arm/mach-highbank/include/mach/uncompress.h
new file mode 100644
index 000000000000..bbe20e696325
--- /dev/null
+++ b/arch/arm/mach-highbank/include/mach/uncompress.h
@@ -0,0 +1,9 @@
1#ifndef __MACH_UNCOMPRESS_H
2#define __MACH_UNCOMPRESS_H
3
4#define putc(c)
5#define flush()
6#define arch_decomp_setup()
7#define arch_decomp_wdog()
8
9#endif
diff --git a/arch/arm/mach-highbank/include/mach/vmalloc.h b/arch/arm/mach-highbank/include/mach/vmalloc.h
new file mode 100644
index 000000000000..1969e954277a
--- /dev/null
+++ b/arch/arm/mach-highbank/include/mach/vmalloc.h
@@ -0,0 +1 @@
#define VMALLOC_END 0xFEE00000UL
diff --git a/arch/arm/mach-highbank/lluart.c b/arch/arm/mach-highbank/lluart.c
new file mode 100644
index 000000000000..371575019f33
--- /dev/null
+++ b/arch/arm/mach-highbank/lluart.c
@@ -0,0 +1,34 @@
1/*
2 * Copyright 2011 Calxeda, Inc.
3 *
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms and conditions of the GNU General Public License,
6 * version 2, as published by the Free Software Foundation.
7 *
8 * This program is distributed in the hope it will be useful, but WITHOUT
9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
10 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
11 * more details.
12 *
13 * You should have received a copy of the GNU General Public License along with
14 * this program. If not, see <http://www.gnu.org/licenses/>.
15 */
16#include <linux/init.h>
17#include <asm/page.h>
18#include <asm/sizes.h>
19#include <asm/mach/map.h>
20
21#define HB_DEBUG_LL_PHYS_BASE 0xfff36000
22#define HB_DEBUG_LL_VIRT_BASE 0xfee36000
23
24static struct map_desc lluart_io_desc __initdata = {
25 .virtual = HB_DEBUG_LL_VIRT_BASE,
26 .pfn = __phys_to_pfn(HB_DEBUG_LL_PHYS_BASE),
27 .length = SZ_4K,
28 .type = MT_DEVICE,
29};
30
31void __init highbank_lluart_map_io(void)
32{
33 iotable_init(&lluart_io_desc, 1);
34}
diff --git a/arch/arm/mach-highbank/sysregs.h b/arch/arm/mach-highbank/sysregs.h
new file mode 100644
index 000000000000..0e913389f445
--- /dev/null
+++ b/arch/arm/mach-highbank/sysregs.h
@@ -0,0 +1,52 @@
1/*
2 * Copyright 2011 Calxeda, Inc.
3 *
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms and conditions of the GNU General Public License,
6 * version 2, as published by the Free Software Foundation.
7 *
8 * This program is distributed in the hope it will be useful, but WITHOUT
9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
10 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
11 * more details.
12 *
13 * You should have received a copy of the GNU General Public License along with
14 * this program. If not, see <http://www.gnu.org/licenses/>.
15 */
16#ifndef _MACH_HIGHBANK__SYSREGS_H_
17#define _MACH_HIGHBANK__SYSREGS_H_
18
19#include <linux/io.h>
20
21extern void __iomem *sregs_base;
22
23#define HB_SREG_A9_PWR_REQ 0xf00
24#define HB_SREG_A9_BOOT_STAT 0xf04
25#define HB_SREG_A9_BOOT_DATA 0xf08
26
27#define HB_PWR_SUSPEND 0
28#define HB_PWR_SOFT_RESET 1
29#define HB_PWR_HARD_RESET 2
30#define HB_PWR_SHUTDOWN 3
31
32static inline void hignbank_set_pwr_suspend(void)
33{
34 writel(HB_PWR_SUSPEND, sregs_base + HB_SREG_A9_PWR_REQ);
35}
36
37static inline void hignbank_set_pwr_shutdown(void)
38{
39 writel(HB_PWR_SHUTDOWN, sregs_base + HB_SREG_A9_PWR_REQ);
40}
41
42static inline void hignbank_set_pwr_soft_reset(void)
43{
44 writel(HB_PWR_SOFT_RESET, sregs_base + HB_SREG_A9_PWR_REQ);
45}
46
47static inline void hignbank_set_pwr_hard_reset(void)
48{
49 writel(HB_PWR_HARD_RESET, sregs_base + HB_SREG_A9_PWR_REQ);
50}
51
52#endif
diff --git a/arch/arm/mach-highbank/system.c b/arch/arm/mach-highbank/system.c
new file mode 100644
index 000000000000..53f0c4c5ef1c
--- /dev/null
+++ b/arch/arm/mach-highbank/system.c
@@ -0,0 +1,33 @@
1/*
2 * Copyright 2011 Calxeda, Inc.
3 *
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms and conditions of the GNU General Public License,
6 * version 2, as published by the Free Software Foundation.
7 *
8 * This program is distributed in the hope it will be useful, but WITHOUT
9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
10 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
11 * more details.
12 *
13 * You should have received a copy of the GNU General Public License along with
14 * this program. If not, see <http://www.gnu.org/licenses/>.
15 */
16#include <linux/io.h>
17#include <asm/smp_scu.h>
18#include <asm/proc-fns.h>
19
20#include "core.h"
21#include "sysregs.h"
22
23void arch_reset(char mode, const char *cmd)
24{
25 if (mode == 'h')
26 hignbank_set_pwr_hard_reset();
27 else
28 hignbank_set_pwr_soft_reset();
29
30 scu_power_mode(scu_base_addr, SCU_PM_POWEROFF);
31 cpu_do_idle();
32}
33
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-18 14:24:33 -0500