diff options
| author | Valentine Barshak <valentine.barshak@cogentembedded.com> | 2014-02-04 22:48:20 +0400 |
|---|---|---|
| committer | Simon Horman <horms+renesas@verge.net.au> | 2014-02-06 15:51:59 +0900 |
| commit | 12c1d5a54e874f26d08fa27f13f63ef7ccf38a2a (patch) | |
| tree | af36a45890a6416f287fddb673003176fc375c4c | |
| parent | 29d9f010d7103f2b83ce1c25999a6f3a1e57f5e2 (diff) | |
ARM: shmobile: koelsch: Add I2C support
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>
| -rw-r--r-- | arch/arm/mach-shmobile/board-koelsch.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/arch/arm/mach-shmobile/board-koelsch.c b/arch/arm/mach-shmobile/board-koelsch.c index 1ec3b91b475c..2741dba74aaa 100644 --- a/arch/arm/mach-shmobile/board-koelsch.c +++ b/arch/arm/mach-shmobile/board-koelsch.c @@ -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); } /* |