aboutsummaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-mmp/mmp2.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/mach-mmp/mmp2.c')
-rw-r--r--arch/arm/mach-mmp/mmp2.c123
1 files changed, 123 insertions, 0 deletions
diff --git a/arch/arm/mach-mmp/mmp2.c b/arch/arm/mach-mmp/mmp2.c
new file mode 100644
index 000000000000..72eb9daeea99
--- /dev/null
+++ b/arch/arm/mach-mmp/mmp2.c
@@ -0,0 +1,123 @@
1/*
2 * linux/arch/arm/mach-mmp/mmp2.c
3 *
4 * code name MMP2
5 *
6 * Copyright (C) 2009 Marvell International Ltd.
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11 */
12
13#include <linux/module.h>
14#include <linux/kernel.h>
15#include <linux/init.h>
16#include <linux/io.h>
17
18#include <mach/addr-map.h>
19#include <mach/regs-apbc.h>
20#include <mach/regs-apmu.h>
21#include <mach/cputype.h>
22#include <mach/irqs.h>
23#include <mach/mfp.h>
24#include <mach/gpio.h>
25#include <mach/devices.h>
26
27#include "common.h"
28#include "clock.h"
29
30#define MFPR_VIRT_BASE (APB_VIRT_BASE + 0x1e000)
31
32#define APMASK(i) (GPIO_REGS_VIRT + BANK_OFF(i) + 0x9c)
33
34static struct mfp_addr_map mmp2_addr_map[] __initdata = {
35 MFP_ADDR(PMIC_INT, 0x2c4),
36
37 MFP_ADDR_END,
38};
39
40void mmp2_clear_pmic_int(void)
41{
42 unsigned long mfpr_pmic, data;
43
44 mfpr_pmic = APB_VIRT_BASE + 0x1e000 + 0x2c4;
45 data = __raw_readl(mfpr_pmic);
46 __raw_writel(data | (1 << 6), mfpr_pmic);
47 __raw_writel(data, mfpr_pmic);
48}
49
50static void __init mmp2_init_gpio(void)
51{
52 int i;
53
54 /* enable GPIO clock */
55 __raw_writel(APBC_APBCLK | APBC_FNCLK, APBC_MMP2_GPIO);
56
57 /* unmask GPIO edge detection for all 6 banks -- APMASKx */
58 for (i = 0; i < 6; i++)
59 __raw_writel(0xffffffff, APMASK(i));
60
61 pxa_init_gpio(IRQ_MMP2_GPIO, 0, 167, NULL);
62}
63
64void __init mmp2_init_irq(void)
65{
66 mmp2_init_icu();
67 mmp2_init_gpio();
68}
69
70/* APB peripheral clocks */
71static APBC_CLK(uart1, MMP2_UART1, 1, 26000000);
72static APBC_CLK(uart2, MMP2_UART2, 1, 26000000);
73static APBC_CLK(uart3, MMP2_UART3, 1, 26000000);
74static APBC_CLK(uart4, MMP2_UART4, 1, 26000000);
75static APBC_CLK(twsi1, MMP2_TWSI1, 0, 26000000);
76static APBC_CLK(twsi2, MMP2_TWSI2, 0, 26000000);
77static APBC_CLK(twsi3, MMP2_TWSI3, 0, 26000000);
78static APBC_CLK(twsi4, MMP2_TWSI4, 0, 26000000);
79static APBC_CLK(twsi5, MMP2_TWSI5, 0, 26000000);
80static APBC_CLK(twsi6, MMP2_TWSI6, 0, 26000000);
81static APBC_CLK(rtc, MMP2_RTC, 0, 32768);
82
83static APMU_CLK(nand, NAND, 0xbf, 100000000);
84
85static struct clk_lookup mmp2_clkregs[] = {
86 INIT_CLKREG(&clk_uart1, "pxa2xx-uart.0", NULL),
87 INIT_CLKREG(&clk_uart2, "pxa2xx-uart.1", NULL),
88 INIT_CLKREG(&clk_uart3, "pxa2xx-uart.2", NULL),
89 INIT_CLKREG(&clk_uart4, "pxa2xx-uart.3", NULL),
90 INIT_CLKREG(&clk_twsi1, "pxa2xx-i2c.0", NULL),
91 INIT_CLKREG(&clk_twsi2, "pxa2xx-i2c.1", NULL),
92 INIT_CLKREG(&clk_twsi3, "pxa2xx-i2c.2", NULL),
93 INIT_CLKREG(&clk_twsi4, "pxa2xx-i2c.3", NULL),
94 INIT_CLKREG(&clk_twsi5, "pxa2xx-i2c.4", NULL),
95 INIT_CLKREG(&clk_twsi6, "pxa2xx-i2c.5", NULL),
96 INIT_CLKREG(&clk_nand, "pxa3xx-nand", NULL),
97};
98
99static int __init mmp2_init(void)
100{
101 if (cpu_is_mmp2()) {
102 mfp_init_base(MFPR_VIRT_BASE);
103 mfp_init_addr(mmp2_addr_map);
104 clks_register(ARRAY_AND_SIZE(mmp2_clkregs));
105 }
106
107 return 0;
108}
109postcore_initcall(mmp2_init);
110
111/* on-chip devices */
112MMP2_DEVICE(uart1, "pxa2xx-uart", 0, UART1, 0xd4030000, 0x30, 4, 5);
113MMP2_DEVICE(uart2, "pxa2xx-uart", 1, UART2, 0xd4017000, 0x30, 20, 21);
114MMP2_DEVICE(uart3, "pxa2xx-uart", 2, UART3, 0xd4018000, 0x30, 22, 23);
115MMP2_DEVICE(uart4, "pxa2xx-uart", 3, UART4, 0xd4016000, 0x30, 18, 19);
116MMP2_DEVICE(twsi1, "pxa2xx-i2c", 0, TWSI1, 0xd4011000, 0x70);
117MMP2_DEVICE(twsi2, "pxa2xx-i2c", 1, TWSI2, 0xd4031000, 0x70);
118MMP2_DEVICE(twsi3, "pxa2xx-i2c", 2, TWSI3, 0xd4032000, 0x70);
119MMP2_DEVICE(twsi4, "pxa2xx-i2c", 3, TWSI4, 0xd4033000, 0x70);
120MMP2_DEVICE(twsi5, "pxa2xx-i2c", 4, TWSI5, 0xd4033800, 0x70);
121MMP2_DEVICE(twsi6, "pxa2xx-i2c", 5, TWSI6, 0xd4034000, 0x70);
122MMP2_DEVICE(nand, "pxa3xx-nand", -1, NAND, 0xd4283000, 0x100, 28, 29);
123