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-rw-r--r--arch/arm/mach-zynq/common.c80
1 files changed, 43 insertions, 37 deletions
diff --git a/arch/arm/mach-zynq/common.c b/arch/arm/mach-zynq/common.c
index ab5cfddc0d7b..e16d4bed0f7a 100644
--- a/arch/arm/mach-zynq/common.c
+++ b/arch/arm/mach-zynq/common.c
@@ -19,19 +19,21 @@
19#include <linux/cpumask.h> 19#include <linux/cpumask.h>
20#include <linux/platform_device.h> 20#include <linux/platform_device.h>
21#include <linux/clk.h> 21#include <linux/clk.h>
22#include <linux/clk/zynq.h>
23#include <linux/of_address.h>
22#include <linux/of_irq.h> 24#include <linux/of_irq.h>
23#include <linux/of_platform.h> 25#include <linux/of_platform.h>
24#include <linux/of.h> 26#include <linux/of.h>
25 27
26#include <asm/mach/arch.h> 28#include <asm/mach/arch.h>
27#include <asm/mach/map.h> 29#include <asm/mach/map.h>
30#include <asm/mach/time.h>
28#include <asm/mach-types.h> 31#include <asm/mach-types.h>
29#include <asm/page.h> 32#include <asm/page.h>
33#include <asm/pgtable.h>
30#include <asm/hardware/gic.h> 34#include <asm/hardware/gic.h>
31#include <asm/hardware/cache-l2x0.h> 35#include <asm/hardware/cache-l2x0.h>
32 36
33#include <mach/zynq_soc.h>
34#include <mach/clkdev.h>
35#include "common.h" 37#include "common.h"
36 38
37static struct of_device_id zynq_of_bus_ids[] __initdata = { 39static struct of_device_id zynq_of_bus_ids[] __initdata = {
@@ -45,55 +47,57 @@ static struct of_device_id zynq_of_bus_ids[] __initdata = {
45 */ 47 */
46static void __init xilinx_init_machine(void) 48static void __init xilinx_init_machine(void)
47{ 49{
48#ifdef CONFIG_CACHE_L2X0
49 /* 50 /*
50 * 64KB way size, 8-way associativity, parity disabled 51 * 64KB way size, 8-way associativity, parity disabled
51 */ 52 */
52 l2x0_init(PL310_L2CC_BASE, 0x02060000, 0xF0F0FFFF); 53 l2x0_of_init(0x02060000, 0xF0F0FFFF);
53#endif
54 54
55 of_platform_bus_probe(NULL, zynq_of_bus_ids, NULL); 55 of_platform_bus_probe(NULL, zynq_of_bus_ids, NULL);
56} 56}
57 57
58static struct of_device_id irq_match[] __initdata = {
59 { .compatible = "arm,cortex-a9-gic", .data = gic_of_init, },
60 { }
61};
62
58/** 63/**
59 * xilinx_irq_init() - Interrupt controller initialization for the GIC. 64 * xilinx_irq_init() - Interrupt controller initialization for the GIC.
60 */ 65 */
61static void __init xilinx_irq_init(void) 66static void __init xilinx_irq_init(void)
62{ 67{
63 gic_init(0, 29, SCU_GIC_DIST_BASE, SCU_GIC_CPU_BASE); 68 of_irq_init(irq_match);
64} 69}
65 70
66/* The minimum devices needed to be mapped before the VM system is up and 71#define SCU_PERIPH_PHYS 0xF8F00000
67 * running include the GIC, UART and Timer Counter. 72#define SCU_PERIPH_SIZE SZ_8K
68 */ 73#define SCU_PERIPH_VIRT (VMALLOC_END - SCU_PERIPH_SIZE)
74
75static struct map_desc scu_desc __initdata = {
76 .virtual = SCU_PERIPH_VIRT,
77 .pfn = __phys_to_pfn(SCU_PERIPH_PHYS),
78 .length = SCU_PERIPH_SIZE,
79 .type = MT_DEVICE,
80};
81
82static void __init xilinx_zynq_timer_init(void)
83{
84 struct device_node *np;
85 void __iomem *slcr;
86
87 np = of_find_compatible_node(NULL, NULL, "xlnx,zynq-slcr");
88 slcr = of_iomap(np, 0);
89 WARN_ON(!slcr);
90
91 xilinx_zynq_clocks_init(slcr);
69 92
70static struct map_desc io_desc[] __initdata = { 93 xttcpss_timer_init();
71 { 94}
72 .virtual = TTC0_VIRT,
73 .pfn = __phys_to_pfn(TTC0_PHYS),
74 .length = SZ_4K,
75 .type = MT_DEVICE,
76 }, {
77 .virtual = SCU_PERIPH_VIRT,
78 .pfn = __phys_to_pfn(SCU_PERIPH_PHYS),
79 .length = SZ_8K,
80 .type = MT_DEVICE,
81 }, {
82 .virtual = PL310_L2CC_VIRT,
83 .pfn = __phys_to_pfn(PL310_L2CC_PHYS),
84 .length = SZ_4K,
85 .type = MT_DEVICE,
86 },
87
88#ifdef CONFIG_DEBUG_LL
89 {
90 .virtual = UART0_VIRT,
91 .pfn = __phys_to_pfn(UART0_PHYS),
92 .length = SZ_4K,
93 .type = MT_DEVICE,
94 },
95#endif
96 95
96/*
97 * Instantiate and initialize the system timer structure
98 */
99static struct sys_timer xttcpss_sys_timer = {
100 .init = xilinx_zynq_timer_init,
97}; 101};
98 102
99/** 103/**
@@ -101,11 +105,13 @@ static struct map_desc io_desc[] __initdata = {
101 */ 105 */
102static void __init xilinx_map_io(void) 106static void __init xilinx_map_io(void)
103{ 107{
104 iotable_init(io_desc, ARRAY_SIZE(io_desc)); 108 debug_ll_io_init();
109 iotable_init(&scu_desc, 1);
105} 110}
106 111
107static const char *xilinx_dt_match[] = { 112static const char *xilinx_dt_match[] = {
108 "xlnx,zynq-ep107", 113 "xlnx,zynq-zc702",
114 "xlnx,zynq-7000",
109 NULL 115 NULL
110}; 116};
111 117