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authorMiguel Aguilar <miguel.aguilar@ridgerun.com>2009-10-13 13:57:07 -0600
committerKevin Hilman <khilman@deeprootsystems.com>2009-11-25 10:21:32 -0800
commit990c09d5f5b2079e8bf3c6615c78fa5ed2b97147 (patch)
tree3f1bd62c06d7cdf354a6e0ea34325e8f60853c06 /arch/arm/mach-davinci
parent1ce52121c415457e92c281aaec4b38a864278fa2 (diff)
Davinci: DM365: Enable DaVinci Key Scan support for DM365 EVM
The general structures are defined at DM365 SoC file and the specific platform data structure for the EVM is defined at board file. Signed-off-by: Miguel Aguilar <miguel.aguilar@ridgerun.com>
Diffstat (limited to 'arch/arm/mach-davinci')
-rw-r--r--arch/arm/mach-davinci/board-dm365-evm.c38
-rw-r--r--arch/arm/mach-davinci/dm365.c32
-rw-r--r--arch/arm/mach-davinci/include/mach/dm365.h5
-rw-r--r--arch/arm/mach-davinci/include/mach/mux.h4
4 files changed, 76 insertions, 3 deletions
diff --git a/arch/arm/mach-davinci/board-dm365-evm.c b/arch/arm/mach-davinci/board-dm365-evm.c
index 3d7b5bbeb97d..19678dc91b09 100644
--- a/arch/arm/mach-davinci/board-dm365-evm.c
+++ b/arch/arm/mach-davinci/board-dm365-evm.c
@@ -23,6 +23,7 @@
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/nand.h>
+#include <linux/input.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
@@ -34,6 +35,7 @@
#include <mach/serial.h>
#include <mach/mmc.h>
#include <mach/nand.h>
+#include <mach/keyscan.h>
static inline int have_imager(void)
{
@@ -190,6 +192,38 @@ static struct davinci_i2c_platform_data i2c_pdata = {
.bus_delay = 0 /* usec */,
};
+#ifdef CONFIG_KEYBOARD_DAVINCI
+static unsigned short dm365evm_keymap[] = {
+ KEY_KP2,
+ KEY_LEFT,
+ KEY_EXIT,
+ KEY_DOWN,
+ KEY_ENTER,
+ KEY_UP,
+ KEY_KP1,
+ KEY_RIGHT,
+ KEY_MENU,
+ KEY_RECORD,
+ KEY_REWIND,
+ KEY_KPMINUS,
+ KEY_STOP,
+ KEY_FASTFORWARD,
+ KEY_KPPLUS,
+ KEY_PLAYPAUSE,
+ 0
+};
+
+static struct davinci_ks_platform_data dm365evm_ks_data = {
+ .keymap = dm365evm_keymap,
+ .keymapsize = ARRAY_SIZE(dm365evm_keymap),
+ .rep = 1,
+ /* Scan period = strobe + interval */
+ .strobe = 0x5,
+ .interval = 0x2,
+ .matrix_type = DAVINCI_KEYSCAN_MATRIX_4X4,
+};
+#endif
+
static int cpld_mmc_get_cd(int module)
{
if (!cpld)
@@ -476,6 +510,10 @@ static __init void dm365_evm_init(void)
evm_init_cpld();
dm365_init_asp(&dm365_evm_snd_data);
+
+#ifdef CONFIG_KEYBOARD_DAVINCI
+ dm365_init_ks(&dm365evm_ks_data);
+#endif
}
static __init void dm365_evm_irq_init(void)
diff --git a/arch/arm/mach-davinci/dm365.c b/arch/arm/mach-davinci/dm365.c
index 0fbc2f261ee3..c12bb005b90d 100644
--- a/arch/arm/mach-davinci/dm365.c
+++ b/arch/arm/mach-davinci/dm365.c
@@ -31,6 +31,7 @@
#include <mach/serial.h>
#include <mach/common.h>
#include <mach/asp.h>
+#include <mach/keyscan.h>
#include "clock.h"
#include "mux.h"
@@ -530,7 +531,7 @@ MUX_CFG(DM365, EMAC_CRS, 3, 2, 1, 1, false)
MUX_CFG(DM365, EMAC_MDIO, 3, 1, 1, 1, false)
MUX_CFG(DM365, EMAC_MDCLK, 3, 0, 1, 1, false)
-MUX_CFG(DM365, KEYPAD, 2, 0, 0x3f, 0x3f, false)
+MUX_CFG(DM365, KEYSCAN, 2, 0, 0x3f, 0x3f, false)
MUX_CFG(DM365, PWM0, 1, 0, 3, 2, false)
MUX_CFG(DM365, PWM0_G23, 3, 26, 3, 3, false)
@@ -849,6 +850,28 @@ static struct map_desc dm365_io_desc[] = {
},
};
+static struct resource dm365_ks_resources[] = {
+ {
+ /* registers */
+ .start = DM365_KEYSCAN_BASE,
+ .end = DM365_KEYSCAN_BASE + SZ_1K - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ /* interrupt */
+ .start = IRQ_DM365_KEYINT,
+ .end = IRQ_DM365_KEYINT,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct platform_device dm365_ks_device = {
+ .name = "davinci_keyscan",
+ .id = 0,
+ .num_resources = ARRAY_SIZE(dm365_ks_resources),
+ .resource = dm365_ks_resources,
+};
+
/* Contents of JTAG ID register used to identify exact cpu type */
static struct davinci_id dm365_ids[] = {
{
@@ -948,6 +971,13 @@ void __init dm365_init_asp(struct snd_platform_data *pdata)
platform_device_register(&dm365_asp_device);
}
+void __init dm365_init_ks(struct davinci_ks_platform_data *pdata)
+{
+ davinci_cfg_reg(DM365_KEYSCAN);
+ dm365_ks_device.dev.platform_data = pdata;
+ platform_device_register(&dm365_ks_device);
+}
+
void __init dm365_init(void)
{
davinci_common_init(&davinci_soc_info_dm365);
diff --git a/arch/arm/mach-davinci/include/mach/dm365.h b/arch/arm/mach-davinci/include/mach/dm365.h
index 2291c0d2c2a0..d8d988a0b58b 100644
--- a/arch/arm/mach-davinci/include/mach/dm365.h
+++ b/arch/arm/mach-davinci/include/mach/dm365.h
@@ -17,6 +17,7 @@
#include <mach/hardware.h>
#include <mach/emac.h>
#include <mach/asp.h>
+#include <mach/keyscan.h>
#define DM365_EMAC_BASE (0x01D07000)
#define DM365_EMAC_CNTRL_OFFSET (0x0000)
@@ -25,7 +26,11 @@
#define DM365_EMAC_MDIO_OFFSET (0x4000)
#define DM365_EMAC_CNTRL_RAM_SIZE (0x2000)
+/* Base of key scan register bank */
+#define DM365_KEYSCAN_BASE (0x01C69400)
+
void __init dm365_init(void);
void __init dm365_init_asp(struct snd_platform_data *pdata);
+void __init dm365_init_ks(struct davinci_ks_platform_data *pdata);
#endif /* __ASM_ARCH_DM365_H */
diff --git a/arch/arm/mach-davinci/include/mach/mux.h b/arch/arm/mach-davinci/include/mach/mux.h
index 16b8a7fc39bd..d41ad16966b7 100644
--- a/arch/arm/mach-davinci/include/mach/mux.h
+++ b/arch/arm/mach-davinci/include/mach/mux.h
@@ -237,8 +237,8 @@ enum davinci_dm365_index {
DM365_EMAC_MDIO,
DM365_EMAC_MDCLK,
- /* Keypad */
- DM365_KEYPAD,
+ /* Key Scan */
+ DM365_KEYSCAN,
/* PWM */
DM365_PWM0,