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authorLinus Torvalds <torvalds@linux-foundation.org>2009-03-28 17:03:14 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2009-03-28 17:03:14 -0400
commit0fe41b8982001cd14ee2c77cd776735a5024e98b (patch)
tree83e65d595c413d55259ea14fb97748ce5efe5707 /arch/arm/mach-mx1
parenteedf2c5296a8dfaaf9aec1a938c1d3bd73159a30 (diff)
parent9759d22c8348343b0da4e25d6150c41712686c14 (diff)
Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (422 commits) [ARM] 5435/1: fix compile warning in sanity_check_meminfo() [ARM] 5434/1: ARM: OMAP: Fix mailbox compile for 24xx [ARM] pxa: fix the bad assumption that PCMCIA sockets always start with 0 [ARM] pxa: fix Colibri PXA300 and PXA320 LCD backlight pins imxfb: Fix TFT mode i.MX21/27: remove ifdef CONFIG_FB_IMX imxfb: add clock support mxc: add arch_reset() function clkdev: add possibility to get a clock based on the device name i.MX1: remove fb support from mach-imx [ARM] pxa: build arch/arm/plat-pxa/mfp.c only when PXA3xx or ARCH_MMP defined Gemini: Add support for Teltonika RUT100 Gemini: gpiolib based GPIO support v2 MAINTAINERS: add myself as Gemini architecture maintainer ARM: Add Gemini architecture v3 [ARM] OMAP: Fix compile for omap2_init_common_hw() MAINTAINERS: Add myself as Faraday ARM core variant maintainer ARM: Add support for FA526 v2 [ARM] acorn,ebsa110,footbridge,integrator,sa1100: Convert asm/io.h to linux/io.h [ARM] collie: fix two minor formatting nits ...
Diffstat (limited to 'arch/arm/mach-mx1')
-rw-r--r--arch/arm/mach-mx1/Kconfig7
-rw-r--r--arch/arm/mach-mx1/Makefile1
-rw-r--r--arch/arm/mach-mx1/clock.c40
-rw-r--r--arch/arm/mach-mx1/devices.c3
-rw-r--r--arch/arm/mach-mx1/mx1ads.c68
-rw-r--r--arch/arm/mach-mx1/scb9328.c160
6 files changed, 242 insertions, 37 deletions
diff --git a/arch/arm/mach-mx1/Kconfig b/arch/arm/mach-mx1/Kconfig
index 2b59fc74784f..eb7660f5d4b7 100644
--- a/arch/arm/mach-mx1/Kconfig
+++ b/arch/arm/mach-mx1/Kconfig
@@ -1,6 +1,6 @@
1if ARCH_MX1 1if ARCH_MX1
2 2
3comment "MX1 Platforms" 3comment "MX1 platforms:"
4 4
5config MACH_MXLADS 5config MACH_MXLADS
6 bool 6 bool
@@ -11,4 +11,9 @@ config ARCH_MX1ADS
11 help 11 help
12 Say Y here if you are using Motorola MX1ADS/MXLADS boards 12 Say Y here if you are using Motorola MX1ADS/MXLADS boards
13 13
14config MACH_SCB9328
15 bool "Synertronixx scb9328"
16 help
17 Say Y here if you are using a Synertronixx scb9328 board
18
14endif 19endif
diff --git a/arch/arm/mach-mx1/Makefile b/arch/arm/mach-mx1/Makefile
index b969719011fa..82f1309568ef 100644
--- a/arch/arm/mach-mx1/Makefile
+++ b/arch/arm/mach-mx1/Makefile
@@ -8,3 +8,4 @@ obj-y += generic.o clock.o devices.o
8 8
9# Specific board support 9# Specific board support
10obj-$(CONFIG_ARCH_MX1ADS) += mx1ads.o 10obj-$(CONFIG_ARCH_MX1ADS) += mx1ads.o
11obj-$(CONFIG_MACH_SCB9328) += scb9328.o \ No newline at end of file
diff --git a/arch/arm/mach-mx1/clock.c b/arch/arm/mach-mx1/clock.c
index 4bcd1ece55f5..0d0f306851d0 100644
--- a/arch/arm/mach-mx1/clock.c
+++ b/arch/arm/mach-mx1/clock.c
@@ -25,6 +25,7 @@
25 25
26#include <mach/clock.h> 26#include <mach/clock.h>
27#include <mach/hardware.h> 27#include <mach/hardware.h>
28#include <mach/common.h>
28#include "crm_regs.h" 29#include "crm_regs.h"
29 30
30static int _clk_enable(struct clk *clk) 31static int _clk_enable(struct clk *clk)
@@ -87,33 +88,6 @@ static int _clk_parent_set_rate(struct clk *clk, unsigned long rate)
87 return clk->parent->set_rate(clk->parent, rate); 88 return clk->parent->set_rate(clk->parent, rate);
88} 89}
89 90
90/*
91 * get the system pll clock in Hz
92 *
93 * mfi + mfn / (mfd +1)
94 * f = 2 * f_ref * --------------------
95 * pd + 1
96 */
97static unsigned long mx1_decode_pll(unsigned int pll, u32 f_ref)
98{
99 unsigned long long ll;
100 unsigned long quot;
101
102 u32 mfi = (pll >> 10) & 0xf;
103 u32 mfn = pll & 0x3ff;
104 u32 mfd = (pll >> 16) & 0x3ff;
105 u32 pd = (pll >> 26) & 0xf;
106
107 mfi = mfi <= 5 ? 5 : mfi;
108
109 ll = 2 * (unsigned long long)f_ref *
110 ((mfi << 16) + (mfn << 16) / (mfd + 1));
111 quot = (pd + 1) * (1 << 16);
112 ll += quot / 2;
113 do_div(ll, quot);
114 return (unsigned long)ll;
115}
116
117static unsigned long clk16m_get_rate(struct clk *clk) 91static unsigned long clk16m_get_rate(struct clk *clk)
118{ 92{
119 return 16000000; 93 return 16000000;
@@ -188,7 +162,7 @@ static struct clk prem_clk = {
188 162
189static unsigned long system_clk_get_rate(struct clk *clk) 163static unsigned long system_clk_get_rate(struct clk *clk)
190{ 164{
191 return mx1_decode_pll(__raw_readl(CCM_SPCTL0), 165 return mxc_decode_pll(__raw_readl(CCM_SPCTL0),
192 clk_get_rate(clk->parent)); 166 clk_get_rate(clk->parent));
193} 167}
194 168
@@ -200,7 +174,7 @@ static struct clk system_clk = {
200 174
201static unsigned long mcu_clk_get_rate(struct clk *clk) 175static unsigned long mcu_clk_get_rate(struct clk *clk)
202{ 176{
203 return mx1_decode_pll(__raw_readl(CCM_MPCTL0), 177 return mxc_decode_pll(__raw_readl(CCM_MPCTL0),
204 clk_get_rate(clk->parent)); 178 clk_get_rate(clk->parent));
205} 179}
206 180
@@ -488,7 +462,7 @@ static struct clk clko_clk = {
488}; 462};
489 463
490static struct clk dma_clk = { 464static struct clk dma_clk = {
491 .name = "dma_clk", 465 .name = "dma",
492 .parent = &hclk, 466 .parent = &hclk,
493 .round_rate = _clk_parent_round_rate, 467 .round_rate = _clk_parent_round_rate,
494 .set_rate = _clk_parent_set_rate, 468 .set_rate = _clk_parent_set_rate,
@@ -539,7 +513,7 @@ static struct clk gpt_clk = {
539}; 513};
540 514
541static struct clk uart_clk = { 515static struct clk uart_clk = {
542 .name = "uart_clk", 516 .name = "uart",
543 .parent = &perclk[0], 517 .parent = &perclk[0],
544 .round_rate = _clk_parent_round_rate, 518 .round_rate = _clk_parent_round_rate,
545 .set_rate = _clk_parent_set_rate, 519 .set_rate = _clk_parent_set_rate,
@@ -621,7 +595,7 @@ static struct clk *mxc_clks[] = {
621 &rtc_clk, 595 &rtc_clk,
622}; 596};
623 597
624int __init mxc_clocks_init(unsigned long fref) 598int __init mx1_clocks_init(unsigned long fref)
625{ 599{
626 struct clk **clkp; 600 struct clk **clkp;
627 unsigned int reg; 601 unsigned int reg;
@@ -652,5 +626,7 @@ int __init mxc_clocks_init(unsigned long fref)
652 clk_enable(&hclk); 626 clk_enable(&hclk);
653 clk_enable(&fclk); 627 clk_enable(&fclk);
654 628
629 mxc_timer_init(&gpt_clk);
630
655 return 0; 631 return 0;
656} 632}
diff --git a/arch/arm/mach-mx1/devices.c b/arch/arm/mach-mx1/devices.c
index a95644193f3f..97f42d96d7a1 100644
--- a/arch/arm/mach-mx1/devices.c
+++ b/arch/arm/mach-mx1/devices.c
@@ -23,10 +23,11 @@
23#include <linux/init.h> 23#include <linux/init.h>
24#include <linux/platform_device.h> 24#include <linux/platform_device.h>
25#include <linux/gpio.h> 25#include <linux/gpio.h>
26
27#include <mach/irqs.h> 26#include <mach/irqs.h>
28#include <mach/hardware.h> 27#include <mach/hardware.h>
29 28
29#include "devices.h"
30
30static struct resource imx_csi_resources[] = { 31static struct resource imx_csi_resources[] = {
31 [0] = { 32 [0] = {
32 .start = 0x00224000, 33 .start = 0x00224000,
diff --git a/arch/arm/mach-mx1/mx1ads.c b/arch/arm/mach-mx1/mx1ads.c
index 3200cf60e384..7ae229bc1b79 100644
--- a/arch/arm/mach-mx1/mx1ads.c
+++ b/arch/arm/mach-mx1/mx1ads.c
@@ -16,6 +16,8 @@
16#include <linux/init.h> 16#include <linux/init.h>
17#include <linux/platform_device.h> 17#include <linux/platform_device.h>
18#include <linux/mtd/physmap.h> 18#include <linux/mtd/physmap.h>
19#include <linux/i2c.h>
20#include <linux/i2c/pcf857x.h>
19 21
20#include <asm/mach-types.h> 22#include <asm/mach-types.h>
21#include <asm/mach/arch.h> 23#include <asm/mach/arch.h>
@@ -25,7 +27,11 @@
25#include <mach/hardware.h> 27#include <mach/hardware.h>
26#include <mach/common.h> 28#include <mach/common.h>
27#include <mach/imx-uart.h> 29#include <mach/imx-uart.h>
28#include <mach/iomux-mx1-mx2.h> 30#include <mach/irqs.h>
31#ifdef CONFIG_I2C_IMX
32#include <mach/i2c.h>
33#endif
34#include <mach/iomux.h>
29#include "devices.h" 35#include "devices.h"
30 36
31/* 37/*
@@ -105,6 +111,55 @@ static struct platform_device flash_device = {
105}; 111};
106 112
107/* 113/*
114 * I2C
115 */
116
117#ifdef CONFIG_I2C_IMX
118static int i2c_pins[] = {
119 PA15_PF_I2C_SDA,
120 PA16_PF_I2C_SCL,
121};
122
123static int i2c_init(struct device *dev)
124{
125 return mxc_gpio_setup_multiple_pins(i2c_pins,
126 ARRAY_SIZE(i2c_pins), "I2C");
127}
128
129static void i2c_exit(struct device *dev)
130{
131 mxc_gpio_release_multiple_pins(i2c_pins,
132 ARRAY_SIZE(i2c_pins));
133}
134
135static struct pcf857x_platform_data pcf857x_data[] = {
136 {
137 .gpio_base = 4 * 32,
138 }, {
139 .gpio_base = 4 * 32 + 16,
140 }
141};
142
143static struct imxi2c_platform_data mx1ads_i2c_data = {
144 .bitrate = 100000,
145 .init = i2c_init,
146 .exit = i2c_exit,
147};
148
149static struct i2c_board_info mx1ads_i2c_devices[] = {
150 {
151 I2C_BOARD_INFO("pcf857x", 0x22),
152 .type = "pcf8575",
153 .platform_data = &pcf857x_data[0],
154 }, {
155 I2C_BOARD_INFO("pcf857x", 0x24),
156 .type = "pcf8575",
157 .platform_data = &pcf857x_data[1],
158 },
159};
160#endif
161
162/*
108 * Board init 163 * Board init
109 */ 164 */
110static void __init mx1ads_init(void) 165static void __init mx1ads_init(void)
@@ -115,12 +170,19 @@ static void __init mx1ads_init(void)
115 170
116 /* Physmap flash */ 171 /* Physmap flash */
117 mxc_register_device(&flash_device, &mx1ads_flash_data); 172 mxc_register_device(&flash_device, &mx1ads_flash_data);
173
174 /* I2C */
175#ifdef CONFIG_I2C_IMX
176 i2c_register_board_info(0, mx1ads_i2c_devices,
177 ARRAY_SIZE(mx1ads_i2c_devices));
178
179 mxc_register_device(&imx_i2c_device, &mx1ads_i2c_data);
180#endif
118} 181}
119 182
120static void __init mx1ads_timer_init(void) 183static void __init mx1ads_timer_init(void)
121{ 184{
122 mxc_clocks_init(32000); 185 mx1_clocks_init(32000);
123 mxc_timer_init("gpt_clk");
124} 186}
125 187
126struct sys_timer mx1ads_timer = { 188struct sys_timer mx1ads_timer = {
diff --git a/arch/arm/mach-mx1/scb9328.c b/arch/arm/mach-mx1/scb9328.c
new file mode 100644
index 000000000000..0e71f3fa28bf
--- /dev/null
+++ b/arch/arm/mach-mx1/scb9328.c
@@ -0,0 +1,160 @@
1/*
2 * linux/arch/arm/mach-mx1/scb9328.c
3 *
4 * Copyright (c) 2004 Sascha Hauer <saschahauer@web.de>
5 * Copyright (c) 2006-2008 Juergen Beisert <jbeisert@netscape.net>
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
13#include <linux/platform_device.h>
14#include <linux/mtd/physmap.h>
15#include <linux/interrupt.h>
16#include <linux/dm9000.h>
17
18#include <asm/mach-types.h>
19#include <asm/mach/arch.h>
20#include <asm/mach/time.h>
21
22#include <mach/common.h>
23#include <mach/hardware.h>
24#include <mach/irqs.h>
25#include <mach/imx-uart.h>
26#include <mach/iomux.h>
27
28#include "devices.h"
29
30/*
31 * This scb9328 has a 32MiB flash
32 */
33static struct resource flash_resource = {
34 .start = IMX_CS0_PHYS,
35 .end = IMX_CS0_PHYS + (32 * 1024 * 1024) - 1,
36 .flags = IORESOURCE_MEM,
37};
38
39static struct physmap_flash_data scb_flash_data = {
40 .width = 2,
41};
42
43static struct platform_device scb_flash_device = {
44 .name = "physmap-flash",
45 .id = 0,
46 .dev = {
47 .platform_data = &scb_flash_data,
48 },
49 .resource = &flash_resource,
50 .num_resources = 1,
51};
52
53/*
54 * scb9328 has a DM9000 network controller
55 * connected to CS5, with 16 bit data path
56 * and interrupt connected to GPIO 3
57 */
58
59/*
60 * internal datapath is fixed 16 bit
61 */
62static struct dm9000_plat_data dm9000_platdata = {
63 .flags = DM9000_PLATF_16BITONLY,
64};
65
66/*
67 * the DM9000 drivers wants two defined address spaces
68 * to gain access to address latch registers and the data path.
69 */
70static struct resource dm9000x_resources[] = {
71 [0] = {
72 .name = "address area",
73 .start = IMX_CS5_PHYS,
74 .end = IMX_CS5_PHYS + 1,
75 .flags = IORESOURCE_MEM /* address access */
76 },
77 [1] = {
78 .name = "data area",
79 .start = IMX_CS5_PHYS + 4,
80 .end = IMX_CS5_PHYS + 5,
81 .flags = IORESOURCE_MEM /* data access */
82 },
83 [2] = {
84 .start = IRQ_GPIOC(3),
85 .end = IRQ_GPIOC(3),
86 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL
87 },
88};
89
90static struct platform_device dm9000x_device = {
91 .name = "dm9000",
92 .id = 0,
93 .num_resources = ARRAY_SIZE(dm9000x_resources),
94 .resource = dm9000x_resources,
95 .dev = {
96 .platform_data = &dm9000_platdata,
97 }
98};
99
100static int mxc_uart1_pins[] = {
101 PC9_PF_UART1_CTS,
102 PC10_PF_UART1_RTS,
103 PC11_PF_UART1_TXD,
104 PC12_PF_UART1_RXD,
105};
106
107static int uart1_mxc_init(struct platform_device *pdev)
108{
109 return mxc_gpio_setup_multiple_pins(mxc_uart1_pins,
110 ARRAY_SIZE(mxc_uart1_pins), "UART1");
111}
112
113static int uart1_mxc_exit(struct platform_device *pdev)
114{
115 mxc_gpio_release_multiple_pins(mxc_uart1_pins,
116 ARRAY_SIZE(mxc_uart1_pins));
117 return 0;
118}
119
120static struct imxuart_platform_data uart_pdata = {
121 .init = uart1_mxc_init,
122 .exit = uart1_mxc_exit,
123 .flags = IMXUART_HAVE_RTSCTS,
124};
125
126static struct platform_device *devices[] __initdata = {
127 &scb_flash_device,
128 &dm9000x_device,
129};
130
131/*
132 * scb9328_init - Init the CPU card itself
133 */
134static void __init scb9328_init(void)
135{
136 mxc_register_device(&imx_uart1_device, &uart_pdata);
137
138 printk(KERN_INFO"Scb9328: Adding devices\n");
139 platform_add_devices(devices, ARRAY_SIZE(devices));
140}
141
142static void __init scb9328_timer_init(void)
143{
144 mx1_clocks_init(32000);
145}
146
147static struct sys_timer scb9328_timer = {
148 .init = scb9328_timer_init,
149};
150
151MACHINE_START(SCB9328, "Synertronixx scb9328")
152 /* Sascha Hauer */
153 .phys_io = 0x00200000,
154 .io_pg_offst = ((0xe0200000) >> 18) & 0xfffc,
155 .boot_params = 0x08000100,
156 .map_io = mxc_map_io,
157 .init_irq = mxc_init_irq,
158 .timer = &scb9328_timer,
159 .init_machine = scb9328_init,
160MACHINE_END