| From 625fc194e833471fd38b79383d284e62a3b9a6c8 Mon Sep 17 00:00:00 2001 |
| From: Valentine Barshak <valentine.barshak@cogentembedded.com> |
| Date: Tue, 4 Feb 2014 22:48:20 +0400 |
| Subject: 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> |
| (cherry picked from commit 12c1d5a54e874f26d08fa27f13f63ef7ccf38a2a) |
| Signed-off-by: Simon Horman <horms+renesas@verge.net.au> |
| --- |
| arch/arm/mach-shmobile/board-koelsch.c | 46 ++++++++++++++++++++++++++++++++++ |
| 1 file changed, 46 insertions(+) |
| |
| 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); |
| } |
| |
| /* |
| -- |
| 2.1.2 |
| |