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authorTony Lindgren <tony@atomide.com>2012-10-08 12:11:22 -0400
committerTony Lindgren <tony@atomide.com>2012-10-17 14:36:50 -0400
commit3a8761c0272c961c707e5af2eb0179adf3ef7e14 (patch)
tree101b61bd1bc57de37c52587ecaff1da4e84d7742 /arch/arm/mach-omap1/i2c.c
parent8599e7c58786e3aef0bdb0fa093fd5150ae8a9bc (diff)
ARM: OMAP: Split plat-omap/i2c.c into mach-omap1 and mach-omap2
There's no need to keep the device related things in the common i2c.c as omap2+ is using hwmod. Split the code to mach-omap1 and mach-omap2 parts and only leave common code to plat-omap/i2c.c. Note that as omap1 only has one i2c controller, we can now remove the old device related macros. Reviewed-by: Shubhrajyoti D <shubhrajyoti@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm/mach-omap1/i2c.c')
-rw-r--r--arch/arm/mach-omap1/i2c.c59
1 files changed, 57 insertions, 2 deletions
diff --git a/arch/arm/mach-omap1/i2c.c b/arch/arm/mach-omap1/i2c.c
index a0551a6d7451..a6f465a44642 100644
--- a/arch/arm/mach-omap1/i2c.c
+++ b/arch/arm/mach-omap1/i2c.c
@@ -19,11 +19,25 @@
19 * 19 *
20 */ 20 */
21 21
22#include <plat/i2c.h> 22#include <linux/i2c-omap.h>
23#include <mach/mux.h> 23#include <mach/mux.h>
24#include <plat/cpu.h> 24#include <plat/cpu.h>
25 25
26void __init omap1_i2c_mux_pins(int bus_id) 26#include "../plat-omap/i2c.h"
27
28#define OMAP_I2C_SIZE 0x3f
29#define OMAP1_I2C_BASE 0xfffb3800
30#define OMAP1_INT_I2C (32 + 4)
31
32static const char name[] = "omap_i2c";
33
34static struct resource i2c_resources[2] = {
35};
36
37static struct platform_device omap_i2c_devices[1] = {
38};
39
40static void __init omap1_i2c_mux_pins(int bus_id)
27{ 41{
28 if (cpu_is_omap7xx()) { 42 if (cpu_is_omap7xx()) {
29 omap_cfg_reg(I2C_7XX_SDA); 43 omap_cfg_reg(I2C_7XX_SDA);
@@ -33,3 +47,44 @@ void __init omap1_i2c_mux_pins(int bus_id)
33 omap_cfg_reg(I2C_SCL); 47 omap_cfg_reg(I2C_SCL);
34 } 48 }
35} 49}
50
51int __init omap_i2c_add_bus(struct omap_i2c_bus_platform_data *pdata,
52 int bus_id)
53{
54 struct platform_device *pdev;
55 struct resource *res;
56
57 omap1_i2c_mux_pins(bus_id);
58
59 pdev = &omap_i2c_devices[bus_id - 1];
60 pdev->id = bus_id;
61 pdev->name = name;
62 pdev->num_resources = ARRAY_SIZE(i2c_resources);
63 res = i2c_resources;
64 res[0].start = OMAP1_I2C_BASE;
65 res[0].end = res[0].start + OMAP_I2C_SIZE;
66 res[0].flags = IORESOURCE_MEM;
67 res[1].start = OMAP1_INT_I2C;
68 res[1].flags = IORESOURCE_IRQ;
69 pdev->resource = res;
70
71 /* all OMAP1 have IP version 1 register set */
72 pdata->rev = OMAP_I2C_IP_VERSION_1;
73
74 /* all OMAP1 I2C are implemented like this */
75 pdata->flags = OMAP_I2C_FLAG_NO_FIFO |
76 OMAP_I2C_FLAG_SIMPLE_CLOCK |
77 OMAP_I2C_FLAG_16BIT_DATA_REG |
78 OMAP_I2C_FLAG_ALWAYS_ARMXOR_CLK;
79
80 /* how the cpu bus is wired up differs for 7xx only */
81
82 if (cpu_is_omap7xx())
83 pdata->flags |= OMAP_I2C_FLAG_BUS_SHIFT_1;
84 else
85 pdata->flags |= OMAP_I2C_FLAG_BUS_SHIFT_2;
86
87 pdev->dev.platform_data = pdata;
88
89 return platform_device_register(pdev);
90}