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authorLinus Torvalds <torvalds@linux-foundation.org>2012-03-27 19:47:35 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2012-03-27 19:47:35 -0400
commit66f03c614c0902ccf7d6160459362a9352f33271 (patch)
treeb9a8864efe5aa7fc5c96cc5ccbeca41f5cd6f6a7 /arch/arm/mach-vexpress
parent34800598b2eebe061445216473b1e4c2ff5cba99 (diff)
parentcdc3df6f44f72c5924a16a47e1663c3fb0e57820 (diff)
Merge tag 'dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull "ARM: device tree work" from Arnd Bergmann: "Most of these patches convert code from using static platform data to describing the hardware in the device tree. This is only the first half of the changes for v3.4 because a lot of patches for this topic came in the last week before the merge window. Signed-off-by: Arnd Bergmann <arnd@arndb.de>" Fix up trivial conflicts in arch/arm/mach-vexpress/{Kconfig,core.h} * tag 'dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (86 commits) Document: devicetree: add OF documents for arch-mmp ARM: dts: append DTS file of pxa168 ARM: mmp: append OF support on pxa168 ARM: mmp: enable rtc clk in pxa168 i2c: pxa: add OF support serial: pxa: add OF support arm/dts: mt_ventoux: very basic support for TeeJet Mt.Ventoux board ARM: OMAP2+: Remove extra ifdefs for board-generic ARM: OMAP2+: Fix build error when only ARCH_OMAP2/3 or 4 is selected ASoC: DT: Add digital microphone binding to PAZ00 board. ARM: dt: Add ARM PMU to tegra*.dtsi ARM: at91: at91sam9x5cm/dt: add leds support ARM: at91: usb_a9g20/dt: add gpio-keys support ARM: at91: at91sam9m10g45ek/dt: add gpio-keys support ARM: at91: at91sam9m10g45ek/dt: add leds support ARM: at91: usb_a9g20/dt: add leds support ARM: at91/pio: add new PIO3 features ARM: at91: add sam9_smc.o to at91sam9x5 build ARM: at91/tc/clocksource: Add 32 bit variant to Timer Counter ARM: at91/tc: add device tree support to atmel_tclib ...
Diffstat (limited to 'arch/arm/mach-vexpress')
-rw-r--r--arch/arm/mach-vexpress/Kconfig47
-rw-r--r--arch/arm/mach-vexpress/Makefile.boot6
-rw-r--r--arch/arm/mach-vexpress/core.h2
-rw-r--r--arch/arm/mach-vexpress/include/mach/debug-macro.S30
-rw-r--r--arch/arm/mach-vexpress/include/mach/irqs.h2
-rw-r--r--arch/arm/mach-vexpress/include/mach/motherboard.h6
-rw-r--r--arch/arm/mach-vexpress/include/mach/uncompress.h22
-rw-r--r--arch/arm/mach-vexpress/platsmp.c155
-rw-r--r--arch/arm/mach-vexpress/v2m.c213
9 files changed, 470 insertions, 13 deletions
diff --git a/arch/arm/mach-vexpress/Kconfig b/arch/arm/mach-vexpress/Kconfig
index 88c3ba151e8..cf8730d35e7 100644
--- a/arch/arm/mach-vexpress/Kconfig
+++ b/arch/arm/mach-vexpress/Kconfig
@@ -1,14 +1,55 @@
1menu "Versatile Express platform type" 1menu "Versatile Express platform type"
2 depends on ARCH_VEXPRESS 2 depends on ARCH_VEXPRESS
3 3
4config ARCH_VEXPRESS_CORTEX_A5_A9_ERRATA
5 bool
6 select ARM_ERRATA_720789
7 select ARM_ERRATA_751472
8 select PL310_ERRATA_753970 if CACHE_PL310
9 help
10 Provides common dependencies for Versatile Express platforms
11 based on Cortex-A5 and Cortex-A9 processors. In order to
12 build a working kernel, you must also enable relevant core
13 tile support or Flattened Device Tree based support options.
14
4config ARCH_VEXPRESS_CA9X4 15config ARCH_VEXPRESS_CA9X4
5 bool "Versatile Express Cortex-A9x4 tile" 16 bool "Versatile Express Cortex-A9x4 tile"
17 select ARCH_VEXPRESS_CORTEX_A5_A9_ERRATA
18 select ARM_GIC
6 select CPU_V7 19 select CPU_V7
20 select HAVE_SMP
21 select MIGHT_HAVE_CACHE_L2X0
22
23config ARCH_VEXPRESS_DT
24 bool "Device Tree support for Versatile Express platforms"
25 select ARCH_VEXPRESS_CORTEX_A5_A9_ERRATA
7 select ARM_GIC 26 select ARM_GIC
8 select ARM_ERRATA_720789 27 select ARM_PATCH_PHYS_VIRT
9 select ARM_ERRATA_751472 28 select AUTO_ZRELADDR
10 select PL310_ERRATA_753970 29 select CPU_V7
11 select HAVE_SMP 30 select HAVE_SMP
12 select MIGHT_HAVE_CACHE_L2X0 31 select MIGHT_HAVE_CACHE_L2X0
32 select USE_OF
33 help
34 New Versatile Express platforms require Flattened Device Tree to
35 be passed to the kernel.
36
37 This option enables support for systems using Cortex processor based
38 ARM core and logic (FPGA) tiles on the Versatile Express motherboard,
39 for example:
40
41 - CoreTile Express A5x2 (V2P-CA5s)
42 - CoreTile Express A9x4 (V2P-CA9)
43 - CoreTile Express A15x2 (V2P-CA15)
44 - LogicTile Express 13MG (V2F-2XV6) with A5, A7, A9 or A15 SMMs
45 (Soft Macrocell Models)
46 - Versatile Express RTSMs (Models)
47
48 You must boot using a Flattened Device Tree in order to use these
49 platforms. The traditional (ATAGs) boot method is not usable on
50 these boards with this option.
51
52 If your bootloader supports Flattened Device Tree based booting,
53 say Y here.
13 54
14endmenu 55endmenu
diff --git a/arch/arm/mach-vexpress/Makefile.boot b/arch/arm/mach-vexpress/Makefile.boot
index 8630b3d10a4..909f85ebf5f 100644
--- a/arch/arm/mach-vexpress/Makefile.boot
+++ b/arch/arm/mach-vexpress/Makefile.boot
@@ -1,3 +1,9 @@
1# Those numbers are used only by the non-DT V2P-CA9 platform
2# The DT-enabled ones require CONFIG_AUTO_ZRELADDR=y
1 zreladdr-y += 0x60008000 3 zreladdr-y += 0x60008000
2params_phys-y := 0x60000100 4params_phys-y := 0x60000100
3initrd_phys-y := 0x60800000 5initrd_phys-y := 0x60800000
6
7dtb-$(CONFIG_ARCH_VEXPRESS_DT) += vexpress-v2p-ca5s.dtb \
8 vexpress-v2p-ca9.dtb \
9 vexpress-v2p-ca15-tc1.dtb
diff --git a/arch/arm/mach-vexpress/core.h b/arch/arm/mach-vexpress/core.h
index 33c5a825aba..a3a4980770b 100644
--- a/arch/arm/mach-vexpress/core.h
+++ b/arch/arm/mach-vexpress/core.h
@@ -3,3 +3,5 @@
3 3
4/* Tile's peripherals static mappings should start here */ 4/* Tile's peripherals static mappings should start here */
5#define V2T_PERIPH 0xf8200000 5#define V2T_PERIPH 0xf8200000
6
7void vexpress_dt_smp_map_io(void);
diff --git a/arch/arm/mach-vexpress/include/mach/debug-macro.S b/arch/arm/mach-vexpress/include/mach/debug-macro.S
index fd9e6c7ea49..fa8224794e0 100644
--- a/arch/arm/mach-vexpress/include/mach/debug-macro.S
+++ b/arch/arm/mach-vexpress/include/mach/debug-macro.S
@@ -10,12 +10,34 @@
10 * published by the Free Software Foundation. 10 * published by the Free Software Foundation.
11 */ 11 */
12 12
13#define DEBUG_LL_UART_OFFSET 0x00009000 13#define DEBUG_LL_PHYS_BASE 0x10000000
14#define DEBUG_LL_UART_OFFSET 0x00009000
15
16#define DEBUG_LL_PHYS_BASE_RS1 0x1c000000
17#define DEBUG_LL_UART_OFFSET_RS1 0x00090000
18
19#define DEBUG_LL_VIRT_BASE 0xf8000000
14 20
15 .macro addruart,rp,rv,tmp 21 .macro addruart,rp,rv,tmp
16 mov \rp, #DEBUG_LL_UART_OFFSET 22
17 orr \rv, \rp, #0xf8000000 @ virtual base 23 @ Make an educated guess regarding the memory map:
18 orr \rp, \rp, #0x10000000 @ physical base 24 @ - the original A9 core tile, which has MPCore peripherals
25 @ located at 0x1e000000, should use UART at 0x10009000
26 @ - all other (RS1 complaint) tiles use UART mapped
27 @ at 0x1c090000
28 mrc p15, 4, \tmp, c15, c0, 0
29 cmp \tmp, #0x1e000000
30
31 @ Original memory map
32 moveq \rp, #DEBUG_LL_UART_OFFSET
33 orreq \rv, \rp, #DEBUG_LL_VIRT_BASE
34 orreq \rp, \rp, #DEBUG_LL_PHYS_BASE
35
36 @ RS1 memory map
37 movne \rp, #DEBUG_LL_UART_OFFSET_RS1
38 orrne \rv, \rp, #DEBUG_LL_VIRT_BASE
39 orrne \rp, \rp, #DEBUG_LL_PHYS_BASE_RS1
40
19 .endm 41 .endm
20 42
21#include <asm/hardware/debug-pl01x.S> 43#include <asm/hardware/debug-pl01x.S>
diff --git a/arch/arm/mach-vexpress/include/mach/irqs.h b/arch/arm/mach-vexpress/include/mach/irqs.h
index 7054cbfc9de..4b10ee7657a 100644
--- a/arch/arm/mach-vexpress/include/mach/irqs.h
+++ b/arch/arm/mach-vexpress/include/mach/irqs.h
@@ -1,4 +1,4 @@
1#define IRQ_LOCALTIMER 29 1#define IRQ_LOCALTIMER 29
2#define IRQ_LOCALWDOG 30 2#define IRQ_LOCALWDOG 30
3 3
4#define NR_IRQS 128 4#define NR_IRQS 256
diff --git a/arch/arm/mach-vexpress/include/mach/motherboard.h b/arch/arm/mach-vexpress/include/mach/motherboard.h
index b4c498c1dbe..31a92890893 100644
--- a/arch/arm/mach-vexpress/include/mach/motherboard.h
+++ b/arch/arm/mach-vexpress/include/mach/motherboard.h
@@ -117,6 +117,12 @@ int v2m_cfg_read(u32 devfn, u32 *data);
117void v2m_flags_set(u32 data); 117void v2m_flags_set(u32 data);
118 118
119/* 119/*
120 * Miscellaneous
121 */
122#define SYS_MISC_MASTERSITE (1 << 14)
123#define SYS_PROCIDx_HBI_MASK 0xfff
124
125/*
120 * Core tile IDs 126 * Core tile IDs
121 */ 127 */
122#define V2M_CT_ID_CA9 0x0c000191 128#define V2M_CT_ID_CA9 0x0c000191
diff --git a/arch/arm/mach-vexpress/include/mach/uncompress.h b/arch/arm/mach-vexpress/include/mach/uncompress.h
index 7972c5748d0..7dab5596b86 100644
--- a/arch/arm/mach-vexpress/include/mach/uncompress.h
+++ b/arch/arm/mach-vexpress/include/mach/uncompress.h
@@ -22,7 +22,27 @@
22#define AMBA_UART_CR(base) (*(volatile unsigned char *)((base) + 0x30)) 22#define AMBA_UART_CR(base) (*(volatile unsigned char *)((base) + 0x30))
23#define AMBA_UART_FR(base) (*(volatile unsigned char *)((base) + 0x18)) 23#define AMBA_UART_FR(base) (*(volatile unsigned char *)((base) + 0x18))
24 24
25#define get_uart_base() (0x10000000 + 0x00009000) 25#define UART_BASE 0x10009000
26#define UART_BASE_RS1 0x1c090000
27
28static unsigned long get_uart_base(void)
29{
30 unsigned long mpcore_periph;
31
32 /*
33 * Make an educated guess regarding the memory map:
34 * - the original A9 core tile, which has MPCore peripherals
35 * located at 0x1e000000, should use UART at 0x10009000
36 * - all other (RS1 complaint) tiles use UART mapped
37 * at 0x1c090000
38 */
39 asm("mrc p15, 4, %0, c15, c0, 0" : "=r" (mpcore_periph));
40
41 if (mpcore_periph == 0x1e000000)
42 return UART_BASE;
43 else
44 return UART_BASE_RS1;
45}
26 46
27/* 47/*
28 * This does not append a newline 48 * This does not append a newline
diff --git a/arch/arm/mach-vexpress/platsmp.c b/arch/arm/mach-vexpress/platsmp.c
index a1ed6d68597..14ba1128ae8 100644
--- a/arch/arm/mach-vexpress/platsmp.c
+++ b/arch/arm/mach-vexpress/platsmp.c
@@ -12,6 +12,11 @@
12#include <linux/errno.h> 12#include <linux/errno.h>
13#include <linux/smp.h> 13#include <linux/smp.h>
14#include <linux/io.h> 14#include <linux/io.h>
15#include <linux/of_fdt.h>
16
17#include <asm/smp_scu.h>
18#include <asm/hardware/gic.h>
19#include <asm/mach/map.h>
15 20
16#include <mach/motherboard.h> 21#include <mach/motherboard.h>
17 22
@@ -19,13 +24,156 @@
19 24
20extern void versatile_secondary_startup(void); 25extern void versatile_secondary_startup(void);
21 26
27#if defined(CONFIG_OF)
28
29static enum {
30 GENERIC_SCU,
31 CORTEX_A9_SCU,
32} vexpress_dt_scu __initdata = GENERIC_SCU;
33
34static struct map_desc vexpress_dt_cortex_a9_scu_map __initdata = {
35 .virtual = V2T_PERIPH,
36 /* .pfn set in vexpress_dt_init_cortex_a9_scu() */
37 .length = SZ_128,
38 .type = MT_DEVICE,
39};
40
41static void *vexpress_dt_cortex_a9_scu_base __initdata;
42
43const static char *vexpress_dt_cortex_a9_match[] __initconst = {
44 "arm,cortex-a5-scu",
45 "arm,cortex-a9-scu",
46 NULL
47};
48
49static int __init vexpress_dt_find_scu(unsigned long node,
50 const char *uname, int depth, void *data)
51{
52 if (of_flat_dt_match(node, vexpress_dt_cortex_a9_match)) {
53 phys_addr_t phys_addr;
54 __be32 *reg = of_get_flat_dt_prop(node, "reg", NULL);
55
56 if (WARN_ON(!reg))
57 return -EINVAL;
58
59 phys_addr = be32_to_cpup(reg);
60 vexpress_dt_scu = CORTEX_A9_SCU;
61
62 vexpress_dt_cortex_a9_scu_map.pfn = __phys_to_pfn(phys_addr);
63 iotable_init(&vexpress_dt_cortex_a9_scu_map, 1);
64 vexpress_dt_cortex_a9_scu_base = ioremap(phys_addr, SZ_256);
65 if (WARN_ON(!vexpress_dt_cortex_a9_scu_base))
66 return -EFAULT;
67 }
68
69 return 0;
70}
71
72void __init vexpress_dt_smp_map_io(void)
73{
74 if (initial_boot_params)
75 WARN_ON(of_scan_flat_dt(vexpress_dt_find_scu, NULL));
76}
77
78static int __init vexpress_dt_cpus_num(unsigned long node, const char *uname,
79 int depth, void *data)
80{
81 static int prev_depth = -1;
82 static int nr_cpus = -1;
83
84 if (prev_depth > depth && nr_cpus > 0)
85 return nr_cpus;
86
87 if (nr_cpus < 0 && strcmp(uname, "cpus") == 0)
88 nr_cpus = 0;
89
90 if (nr_cpus >= 0) {
91 const char *device_type = of_get_flat_dt_prop(node,
92 "device_type", NULL);
93
94 if (device_type && strcmp(device_type, "cpu") == 0)
95 nr_cpus++;
96 }
97
98 prev_depth = depth;
99
100 return 0;
101}
102
103static void __init vexpress_dt_smp_init_cpus(void)
104{
105 int ncores = 0, i;
106
107 switch (vexpress_dt_scu) {
108 case GENERIC_SCU:
109 ncores = of_scan_flat_dt(vexpress_dt_cpus_num, NULL);
110 break;
111 case CORTEX_A9_SCU:
112 ncores = scu_get_core_count(vexpress_dt_cortex_a9_scu_base);
113 break;
114 default:
115 WARN_ON(1);
116 break;
117 }
118
119 if (ncores < 2)
120 return;
121
122 if (ncores > nr_cpu_ids) {
123 pr_warn("SMP: %u cores greater than maximum (%u), clipping\n",
124 ncores, nr_cpu_ids);
125 ncores = nr_cpu_ids;
126 }
127
128 for (i = 0; i < ncores; ++i)
129 set_cpu_possible(i, true);
130
131 set_smp_cross_call(gic_raise_softirq);
132}
133
134static void __init vexpress_dt_smp_prepare_cpus(unsigned int max_cpus)
135{
136 int i;
137
138 switch (vexpress_dt_scu) {
139 case GENERIC_SCU:
140 for (i = 0; i < max_cpus; i++)
141 set_cpu_present(i, true);
142 break;
143 case CORTEX_A9_SCU:
144 scu_enable(vexpress_dt_cortex_a9_scu_base);
145 break;
146 default:
147 WARN_ON(1);
148 break;
149 }
150}
151
152#else
153
154static void __init vexpress_dt_smp_init_cpus(void)
155{
156 WARN_ON(1);
157}
158
159void __init vexpress_dt_smp_prepare_cpus(unsigned int max_cpus)
160{
161 WARN_ON(1);
162}
163
164#endif
165
22/* 166/*
23 * Initialise the CPU possible map early - this describes the CPUs 167 * Initialise the CPU possible map early - this describes the CPUs
24 * which may be present or become present in the system. 168 * which may be present or become present in the system.
25 */ 169 */
26void __init smp_init_cpus(void) 170void __init smp_init_cpus(void)
27{ 171{
28 ct_desc->init_cpu_map(); 172 if (ct_desc)
173 ct_desc->init_cpu_map();
174 else
175 vexpress_dt_smp_init_cpus();
176
29} 177}
30 178
31void __init platform_smp_prepare_cpus(unsigned int max_cpus) 179void __init platform_smp_prepare_cpus(unsigned int max_cpus)
@@ -34,7 +182,10 @@ void __init platform_smp_prepare_cpus(unsigned int max_cpus)
34 * Initialise the present map, which describes the set of CPUs 182 * Initialise the present map, which describes the set of CPUs
35 * actually populated at the present time. 183 * actually populated at the present time.
36 */ 184 */
37 ct_desc->smp_enable(max_cpus); 185 if (ct_desc)
186 ct_desc->smp_enable(max_cpus);
187 else
188 vexpress_dt_smp_prepare_cpus(max_cpus);
38 189
39 /* 190 /*
40 * Write the address of secondary startup into the 191 * Write the address of secondary startup into the
diff --git a/arch/arm/mach-vexpress/v2m.c b/arch/arm/mach-vexpress/v2m.c
index 663a9883192..47cdcca5a7e 100644
--- a/arch/arm/mach-vexpress/v2m.c
+++ b/arch/arm/mach-vexpress/v2m.c
@@ -6,6 +6,10 @@
6#include <linux/amba/mmci.h> 6#include <linux/amba/mmci.h>
7#include <linux/io.h> 7#include <linux/io.h>
8#include <linux/init.h> 8#include <linux/init.h>
9#include <linux/of_address.h>
10#include <linux/of_fdt.h>
11#include <linux/of_irq.h>
12#include <linux/of_platform.h>
9#include <linux/platform_device.h> 13#include <linux/platform_device.h>
10#include <linux/ata_platform.h> 14#include <linux/ata_platform.h>
11#include <linux/smsc911x.h> 15#include <linux/smsc911x.h>
@@ -21,6 +25,8 @@
21#include <asm/mach/map.h> 25#include <asm/mach/map.h>
22#include <asm/mach/time.h> 26#include <asm/mach/time.h>
23#include <asm/hardware/arm_timer.h> 27#include <asm/hardware/arm_timer.h>
28#include <asm/hardware/cache-l2x0.h>
29#include <asm/hardware/gic.h>
24#include <asm/hardware/timer-sp.h> 30#include <asm/hardware/timer-sp.h>
25#include <asm/hardware/sp810.h> 31#include <asm/hardware/sp810.h>
26#include <asm/hardware/gic.h> 32#include <asm/hardware/gic.h>
@@ -430,8 +436,9 @@ static void __init v2m_populate_ct_desc(void)
430 ct_desc = ct_descs[i]; 436 ct_desc = ct_descs[i];
431 437
432 if (!ct_desc) 438 if (!ct_desc)
433 panic("vexpress: failed to populate core tile description " 439 panic("vexpress: this kernel does not support core tile ID 0x%08x when booting via ATAGs.\n"
434 "for tile ID 0x%8x\n", current_tile_id); 440 "You may need a device tree blob or a different kernel to boot on this board.\n",
441 current_tile_id);
435} 442}
436 443
437static void __init v2m_map_io(void) 444static void __init v2m_map_io(void)
@@ -476,3 +483,205 @@ MACHINE_START(VEXPRESS, "ARM-Versatile Express")
476 .init_machine = v2m_init, 483 .init_machine = v2m_init,
477 .restart = v2m_restart, 484 .restart = v2m_restart,
478MACHINE_END 485MACHINE_END
486
487#if defined(CONFIG_ARCH_VEXPRESS_DT)
488
489static struct map_desc v2m_rs1_io_desc __initdata = {
490 .virtual = V2M_PERIPH,
491 .pfn = __phys_to_pfn(0x1c000000),
492 .length = SZ_2M,
493 .type = MT_DEVICE,
494};
495
496static int __init v2m_dt_scan_memory_map(unsigned long node, const char *uname,
497 int depth, void *data)
498{
499 const char **map = data;
500
501 if (strcmp(uname, "motherboard") != 0)
502 return 0;
503
504 *map = of_get_flat_dt_prop(node, "arm,v2m-memory-map", NULL);
505
506 return 1;
507}
508
509void __init v2m_dt_map_io(void)
510{
511 const char *map = NULL;
512
513 of_scan_flat_dt(v2m_dt_scan_memory_map, &map);
514
515 if (map && strcmp(map, "rs1") == 0)
516 iotable_init(&v2m_rs1_io_desc, 1);
517 else
518 iotable_init(v2m_io_desc, ARRAY_SIZE(v2m_io_desc));
519
520#if defined(CONFIG_SMP)
521 vexpress_dt_smp_map_io();
522#endif
523}
524
525static struct clk_lookup v2m_dt_lookups[] = {
526 { /* AMBA bus clock */
527 .con_id = "apb_pclk",
528 .clk = &dummy_apb_pclk,
529 }, { /* SP804 timers */
530 .dev_id = "sp804",
531 .con_id = "v2m-timer0",
532 .clk = &v2m_sp804_clk,
533 }, { /* SP804 timers */
534 .dev_id = "sp804",
535 .con_id = "v2m-timer1",
536 .clk = &v2m_sp804_clk,
537 }, { /* PL180 MMCI */
538 .dev_id = "mb:mmci", /* 10005000.mmci */
539 .clk = &osc2_clk,
540 }, { /* PL050 KMI0 */
541 .dev_id = "10006000.kmi",
542 .clk = &osc2_clk,
543 }, { /* PL050 KMI1 */
544 .dev_id = "10007000.kmi",
545 .clk = &osc2_clk,
546 }, { /* PL011 UART0 */
547 .dev_id = "10009000.uart",
548 .clk = &osc2_clk,
549 }, { /* PL011 UART1 */
550 .dev_id = "1000a000.uart",
551 .clk = &osc2_clk,
552 }, { /* PL011 UART2 */
553 .dev_id = "1000b000.uart",
554 .clk = &osc2_clk,
555 }, { /* PL011 UART3 */
556 .dev_id = "1000c000.uart",
557 .clk = &osc2_clk,
558 }, { /* SP805 WDT */
559 .dev_id = "1000f000.wdt",
560 .clk = &v2m_ref_clk,
561 }, { /* PL111 CLCD */
562 .dev_id = "1001f000.clcd",
563 .clk = &osc1_clk,
564 },
565 /* RS1 memory map */
566 { /* PL180 MMCI */
567 .dev_id = "mb:mmci", /* 1c050000.mmci */
568 .clk = &osc2_clk,
569 }, { /* PL050 KMI0 */
570 .dev_id = "1c060000.kmi",
571 .clk = &osc2_clk,
572 }, { /* PL050 KMI1 */
573 .dev_id = "1c070000.kmi",
574 .clk = &osc2_clk,
575 }, { /* PL011 UART0 */
576 .dev_id = "1c090000.uart",
577 .clk = &osc2_clk,
578 }, { /* PL011 UART1 */
579 .dev_id = "1c0a0000.uart",
580 .clk = &osc2_clk,
581 }, { /* PL011 UART2 */
582 .dev_id = "1c0b0000.uart",
583 .clk = &osc2_clk,
584 }, { /* PL011 UART3 */
585 .dev_id = "1c0c0000.uart",
586 .clk = &osc2_clk,
587 }, { /* SP805 WDT */
588 .dev_id = "1c0f0000.wdt",
589 .clk = &v2m_ref_clk,
590 }, { /* PL111 CLCD */
591 .dev_id = "1c1f0000.clcd",
592 .clk = &osc1_clk,
593 },
594};
595
596void __init v2m_dt_init_early(void)
597{
598 struct device_node *node;
599 u32 dt_hbi;
600
601 node = of_find_compatible_node(NULL, NULL, "arm,vexpress-sysreg");
602 v2m_sysreg_base = of_iomap(node, 0);
603 if (WARN_ON(!v2m_sysreg_base))
604 return;
605
606 /* Confirm board type against DT property, if available */
607 if (of_property_read_u32(allnodes, "arm,hbi", &dt_hbi) == 0) {
608 u32 misc = readl(v2m_sysreg_base + V2M_SYS_MISC);
609 u32 id = readl(v2m_sysreg_base + (misc & SYS_MISC_MASTERSITE ?
610 V2M_SYS_PROCID1 : V2M_SYS_PROCID0));
611 u32 hbi = id & SYS_PROCIDx_HBI_MASK;
612
613 if (WARN_ON(dt_hbi != hbi))
614 pr_warning("vexpress: DT HBI (%x) is not matching "
615 "hardware (%x)!\n", dt_hbi, hbi);
616 }
617
618 clkdev_add_table(v2m_dt_lookups, ARRAY_SIZE(v2m_dt_lookups));
619 versatile_sched_clock_init(v2m_sysreg_base + V2M_SYS_24MHZ, 24000000);
620}
621
622static struct of_device_id vexpress_irq_match[] __initdata = {
623 { .compatible = "arm,cortex-a9-gic", .data = gic_of_init, },
624 {}
625};
626
627static void __init v2m_dt_init_irq(void)
628{
629 of_irq_init(vexpress_irq_match);
630}
631
632static void __init v2m_dt_timer_init(void)
633{
634 struct device_node *node;
635 const char *path;
636 int err;
637
638 node = of_find_compatible_node(NULL, NULL, "arm,sp810");
639 v2m_sysctl_init(of_iomap(node, 0));
640
641 err = of_property_read_string(of_aliases, "arm,v2m_timer", &path);
642 if (WARN_ON(err))
643 return;
644 node = of_find_node_by_path(path);
645 v2m_sp804_init(of_iomap(node, 0), irq_of_parse_and_map(node, 0));
646}
647
648static struct sys_timer v2m_dt_timer = {
649 .init = v2m_dt_timer_init,
650};
651
652static struct of_dev_auxdata v2m_dt_auxdata_lookup[] __initdata = {
653 OF_DEV_AUXDATA("arm,vexpress-flash", V2M_NOR0, "physmap-flash",
654 &v2m_flash_data),
655 OF_DEV_AUXDATA("arm,primecell", V2M_MMCI, "mb:mmci", &v2m_mmci_data),
656 /* RS1 memory map */
657 OF_DEV_AUXDATA("arm,vexpress-flash", 0x08000000, "physmap-flash",
658 &v2m_flash_data),
659 OF_DEV_AUXDATA("arm,primecell", 0x1c050000, "mb:mmci", &v2m_mmci_data),
660 {}
661};
662
663static void __init v2m_dt_init(void)
664{
665 l2x0_of_init(0x00400000, 0xfe0fffff);
666 of_platform_populate(NULL, of_default_bus_match_table,
667 v2m_dt_auxdata_lookup, NULL);
668 pm_power_off = v2m_power_off;
669}
670
671const static char *v2m_dt_match[] __initconst = {
672 "arm,vexpress",
673 NULL,
674};
675
676DT_MACHINE_START(VEXPRESS_DT, "ARM-Versatile Express")
677 .dt_compat = v2m_dt_match,
678 .map_io = v2m_dt_map_io,
679 .init_early = v2m_dt_init_early,
680 .init_irq = v2m_dt_init_irq,
681 .timer = &v2m_dt_timer,
682 .init_machine = v2m_dt_init,
683 .handle_irq = gic_handle_irq,
684 .restart = v2m_restart,
685MACHINE_END
686
687#endif