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ARM: shmobile: koelsch: Add I2C support

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This adds I2C[1245] busses support to Koelsch board.
I2C[03] do not have any slave devices connected and
are not used because of the following:
* I2C0 pins are multiplexed with LBSC pins;
* I2C3 pins are multiplexed with EtherMAC and VIN0 pins.

Signed-off-by: Valentine Barshak <valentine.barshak@cogentembedded.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
This commit is contained in:
Valentine Barshak 2014-02-04 22:48:20 +04:00 committed by Simon Horman
parent 29d9f010d7
commit 12c1d5a54e
1 changed files with 46 additions and 0 deletions
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46
arch/arm/mach-shmobile/board-koelsch.c
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@ -165,6 +165,38 @@ static const struct platform_device_info sata0_info __initconst = {
.dma_mask = DMA_BIT_MASK(32),
};
/* I2C */
static const struct resource i2c_resources[] __initconst = {
/* I2C0 */
DEFINE_RES_MEM(0xE6508000, 0x40),
DEFINE_RES_IRQ(gic_spi(287)),
/* I2C1 */
DEFINE_RES_MEM(0xE6518000, 0x40),
DEFINE_RES_IRQ(gic_spi(288)),
/* I2C2 */
DEFINE_RES_MEM(0xE6530000, 0x40),
DEFINE_RES_IRQ(gic_spi(286)),
/* I2C3 */
DEFINE_RES_MEM(0xE6540000, 0x40),
DEFINE_RES_IRQ(gic_spi(290)),
/* I2C4 */
DEFINE_RES_MEM(0xE6520000, 0x40),
DEFINE_RES_IRQ(gic_spi(19)),
/* I2C5 */
DEFINE_RES_MEM(0xE6528000, 0x40),
DEFINE_RES_IRQ(gic_spi(20)),
};
static void __init koelsch_add_i2c(unsigned idx)
{
unsigned res_idx = idx * 2;
BUG_ON(res_idx >= ARRAY_SIZE(i2c_resources));
platform_device_register_simple("i2c-rcar_gen2", idx,
i2c_resources + res_idx, 2);
}
static const struct pinctrl_map koelsch_pinctrl_map[] = {
/* DU */
PIN_MAP_MUX_GROUP_DEFAULT("rcar-du-r8a7791", "pfc-r8a7791",
@ -188,6 +220,15 @@ static const struct pinctrl_map koelsch_pinctrl_map[] = {
/* SCIF1 (CN20: DEBUG SERIAL1) */
PIN_MAP_MUX_GROUP_DEFAULT("sh-sci.7", "pfc-r8a7791",
"scif1_data_d", "scif1"),
/* I2C1 */
PIN_MAP_MUX_GROUP_DEFAULT("i2c-rcar_gen2.1", "pfc-r8a7791",
"i2c1_e", "i2c1"),
/* I2C2 */
PIN_MAP_MUX_GROUP_DEFAULT("i2c-rcar_gen2.2", "pfc-r8a7791",
"i2c2", "i2c2"),
/* I2C4 */
PIN_MAP_MUX_GROUP_DEFAULT("i2c-rcar_gen2.4", "pfc-r8a7791",
"i2c4_c", "i2c4"),
};
static void __init koelsch_add_standard_devices(void)
@ -211,6 +252,11 @@ static void __init koelsch_add_standard_devices(void)
koelsch_add_du_device();
platform_device_register_full(&sata0_info);
koelsch_add_i2c(1);
koelsch_add_i2c(2);
koelsch_add_i2c(4);
koelsch_add_i2c(5);
}
/*