2 * linux/arch/arm/mach-mmp/mmp2.c
6 * Copyright (C) 2009 Marvell International Ltd.
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.
13 #include <linux/module.h>
14 #include <linux/kernel.h>
15 #include <linux/init.h>
18 #include <asm/hardware/cache-tauros2.h>
20 #include <asm/mach/time.h>
21 #include <mach/addr-map.h>
22 #include <mach/regs-apbc.h>
23 #include <mach/regs-apmu.h>
24 #include <mach/cputype.h>
25 #include <mach/irqs.h>
28 #include <mach/gpio.h>
29 #include <mach/devices.h>
30 #include <mach/mmp2.h>
35 #define MFPR_VIRT_BASE (APB_VIRT_BASE + 0x1e000)
37 #define APMASK(i) (GPIO_REGS_VIRT + BANK_OFF(i) + 0x9c)
39 static struct mfp_addr_map mmp2_addr_map[] __initdata = {
41 MFP_ADDR_X(GPIO0, GPIO58, 0x54),
42 MFP_ADDR_X(GPIO59, GPIO73, 0x280),
43 MFP_ADDR_X(GPIO74, GPIO101, 0x170),
45 MFP_ADDR(GPIO102, 0x0),
46 MFP_ADDR(GPIO103, 0x4),
47 MFP_ADDR(GPIO104, 0x1fc),
48 MFP_ADDR(GPIO105, 0x1f8),
49 MFP_ADDR(GPIO106, 0x1f4),
50 MFP_ADDR(GPIO107, 0x1f0),
51 MFP_ADDR(GPIO108, 0x21c),
52 MFP_ADDR(GPIO109, 0x218),
53 MFP_ADDR(GPIO110, 0x214),
54 MFP_ADDR(GPIO111, 0x200),
55 MFP_ADDR(GPIO112, 0x244),
56 MFP_ADDR(GPIO113, 0x25c),
57 MFP_ADDR(GPIO114, 0x164),
58 MFP_ADDR_X(GPIO115, GPIO122, 0x260),
60 MFP_ADDR(GPIO123, 0x148),
61 MFP_ADDR_X(GPIO124, GPIO141, 0xc),
63 MFP_ADDR(GPIO142, 0x8),
64 MFP_ADDR_X(GPIO143, GPIO151, 0x220),
65 MFP_ADDR_X(GPIO152, GPIO153, 0x248),
66 MFP_ADDR_X(GPIO154, GPIO155, 0x254),
67 MFP_ADDR_X(GPIO156, GPIO159, 0x14c),
69 MFP_ADDR(GPIO160, 0x250),
70 MFP_ADDR(GPIO161, 0x210),
71 MFP_ADDR(GPIO162, 0x20c),
72 MFP_ADDR(GPIO163, 0x208),
73 MFP_ADDR(GPIO164, 0x204),
74 MFP_ADDR(GPIO165, 0x1ec),
75 MFP_ADDR(GPIO166, 0x1e8),
76 MFP_ADDR(GPIO167, 0x1e4),
77 MFP_ADDR(GPIO168, 0x1e0),
79 MFP_ADDR_X(TWSI1_SCL, TWSI1_SDA, 0x140),
80 MFP_ADDR_X(TWSI4_SCL, TWSI4_SDA, 0x2bc),
82 MFP_ADDR(PMIC_INT, 0x2c4),
83 MFP_ADDR(CLK_REQ, 0x160),
88 void mmp2_clear_pmic_int(void)
90 unsigned long mfpr_pmic, data;
92 mfpr_pmic = APB_VIRT_BASE + 0x1e000 + 0x2c4;
93 data = __raw_readl(mfpr_pmic);
94 __raw_writel(data | (1 << 6), mfpr_pmic);
95 __raw_writel(data, mfpr_pmic);
98 static void __init mmp2_init_gpio(void)
102 /* enable GPIO clock */
103 __raw_writel(APBC_APBCLK | APBC_FNCLK, APBC_MMP2_GPIO);
105 /* unmask GPIO edge detection for all 6 banks -- APMASKx */
106 for (i = 0; i < 6; i++)
107 __raw_writel(0xffffffff, APMASK(i));
109 pxa_init_gpio(IRQ_MMP2_GPIO, 0, 167, NULL);
112 void __init mmp2_init_irq(void)
118 /* APB peripheral clocks */
119 static APBC_CLK(uart1, MMP2_UART1, 1, 26000000);
120 static APBC_CLK(uart2, MMP2_UART2, 1, 26000000);
121 static APBC_CLK(uart3, MMP2_UART3, 1, 26000000);
122 static APBC_CLK(uart4, MMP2_UART4, 1, 26000000);
123 static APBC_CLK(twsi1, MMP2_TWSI1, 0, 26000000);
124 static APBC_CLK(twsi2, MMP2_TWSI2, 0, 26000000);
125 static APBC_CLK(twsi3, MMP2_TWSI3, 0, 26000000);
126 static APBC_CLK(twsi4, MMP2_TWSI4, 0, 26000000);
127 static APBC_CLK(twsi5, MMP2_TWSI5, 0, 26000000);
128 static APBC_CLK(twsi6, MMP2_TWSI6, 0, 26000000);
129 static APBC_CLK(rtc, MMP2_RTC, 0, 32768);
131 static APMU_CLK(nand, NAND, 0xbf, 100000000);
133 static struct clk_lookup mmp2_clkregs[] = {
134 INIT_CLKREG(&clk_uart1, "pxa2xx-uart.0", NULL),
135 INIT_CLKREG(&clk_uart2, "pxa2xx-uart.1", NULL),
136 INIT_CLKREG(&clk_uart3, "pxa2xx-uart.2", NULL),
137 INIT_CLKREG(&clk_uart4, "pxa2xx-uart.3", NULL),
138 INIT_CLKREG(&clk_twsi1, "pxa2xx-i2c.0", NULL),
139 INIT_CLKREG(&clk_twsi2, "pxa2xx-i2c.1", NULL),
140 INIT_CLKREG(&clk_twsi3, "pxa2xx-i2c.2", NULL),
141 INIT_CLKREG(&clk_twsi4, "pxa2xx-i2c.3", NULL),
142 INIT_CLKREG(&clk_twsi5, "pxa2xx-i2c.4", NULL),
143 INIT_CLKREG(&clk_twsi6, "pxa2xx-i2c.5", NULL),
144 INIT_CLKREG(&clk_nand, "pxa3xx-nand", NULL),
147 static int __init mmp2_init(void)
150 #ifdef CONFIG_CACHE_TAUROS2
153 mfp_init_base(MFPR_VIRT_BASE);
154 mfp_init_addr(mmp2_addr_map);
155 pxa_init_dma(IRQ_MMP2_DMA_RIQ, 16);
156 clkdev_add_table(ARRAY_AND_SIZE(mmp2_clkregs));
161 postcore_initcall(mmp2_init);
163 static void __init mmp2_timer_init(void)
165 unsigned long clk_rst;
167 __raw_writel(APBC_APBCLK | APBC_RST, APBC_MMP2_TIMERS);
170 * enable bus/functional clock, enable 6.5MHz (divider 4),
173 clk_rst = APBC_APBCLK | APBC_FNCLK | APBC_FNCLKSEL(1);
174 __raw_writel(clk_rst, APBC_MMP2_TIMERS);
176 timer_init(IRQ_MMP2_TIMER1);
179 struct sys_timer mmp2_timer = {
180 .init = mmp2_timer_init,
183 /* on-chip devices */
184 MMP2_DEVICE(uart1, "pxa2xx-uart", 0, UART1, 0xd4030000, 0x30, 4, 5);
185 MMP2_DEVICE(uart2, "pxa2xx-uart", 1, UART2, 0xd4017000, 0x30, 20, 21);
186 MMP2_DEVICE(uart3, "pxa2xx-uart", 2, UART3, 0xd4018000, 0x30, 22, 23);
187 MMP2_DEVICE(uart4, "pxa2xx-uart", 3, UART4, 0xd4016000, 0x30, 18, 19);
188 MMP2_DEVICE(twsi1, "pxa2xx-i2c", 0, TWSI1, 0xd4011000, 0x70);
189 MMP2_DEVICE(twsi2, "pxa2xx-i2c", 1, TWSI2, 0xd4031000, 0x70);
190 MMP2_DEVICE(twsi3, "pxa2xx-i2c", 2, TWSI3, 0xd4032000, 0x70);
191 MMP2_DEVICE(twsi4, "pxa2xx-i2c", 3, TWSI4, 0xd4033000, 0x70);
192 MMP2_DEVICE(twsi5, "pxa2xx-i2c", 4, TWSI5, 0xd4033800, 0x70);
193 MMP2_DEVICE(twsi6, "pxa2xx-i2c", 5, TWSI6, 0xd4034000, 0x70);
194 MMP2_DEVICE(nand, "pxa3xx-nand", -1, NAND, 0xd4283000, 0x100, 28, 29);