diff options
Diffstat (limited to 'arch/arm/mach-shmobile/setup-r8a7790.c')
| -rw-r--r-- | arch/arm/mach-shmobile/setup-r8a7790.c | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/arch/arm/mach-shmobile/setup-r8a7790.c b/arch/arm/mach-shmobile/setup-r8a7790.c index 6ab37aa1e919..c4616f0698c6 100644 --- a/arch/arm/mach-shmobile/setup-r8a7790.c +++ b/arch/arm/mach-shmobile/setup-r8a7790.c @@ -24,12 +24,100 @@ #include <linux/platform_data/gpio-rcar.h> #include <linux/platform_data/irq-renesas-irqc.h> #include <linux/serial_sci.h> +#include <linux/sh_dma.h> #include <linux/sh_timer.h> #include <mach/common.h> +#include <mach/dma-register.h> #include <mach/irqs.h> #include <mach/r8a7790.h> #include <asm/mach/arch.h> +/* Audio-DMAC */ +#define AUDIO_DMAC_SLAVE(_id, _addr, t, r) \ +{ \ + .slave_id = AUDIO_DMAC_SLAVE_## _id ##_TX, \ + .addr = _addr + 0x8, \ + .chcr = CHCR_TX(XMIT_SZ_32BIT), \ + .mid_rid = t, \ +}, { \ + .slave_id = AUDIO_DMAC_SLAVE_## _id ##_RX, \ + .addr = _addr + 0xc, \ + .chcr = CHCR_RX(XMIT_SZ_32BIT), \ + .mid_rid = r, \ +} + +static const struct sh_dmae_slave_config r8a7790_audio_dmac_slaves[] = { + AUDIO_DMAC_SLAVE(SSI0, 0xec241000, 0x01, 0x02), + AUDIO_DMAC_SLAVE(SSI1, 0xec241040, 0x03, 0x04), + AUDIO_DMAC_SLAVE(SSI2, 0xec241080, 0x05, 0x06), + AUDIO_DMAC_SLAVE(SSI3, 0xec2410c0, 0x07, 0x08), + AUDIO_DMAC_SLAVE(SSI4, 0xec241100, 0x09, 0x0a), + AUDIO_DMAC_SLAVE(SSI5, 0xec241140, 0x0b, 0x0c), + AUDIO_DMAC_SLAVE(SSI6, 0xec241180, 0x0d, 0x0e), + AUDIO_DMAC_SLAVE(SSI7, 0xec2411c0, 0x0f, 0x10), + AUDIO_DMAC_SLAVE(SSI8, 0xec241200, 0x11, 0x12), + AUDIO_DMAC_SLAVE(SSI9, 0xec241240, 0x13, 0x14), +}; + +#define DMAE_CHANNEL(a, b) \ +{ \ + .offset = (a) - 0x20, \ + .dmars = (a) - 0x20 + 0x40, \ + .chclr_bit = (b), \ + .chclr_offset = 0x80 - 0x20, \ +} + +static const struct sh_dmae_channel r8a7790_audio_dmac_channels[] = { + DMAE_CHANNEL(0x8000, 0), + DMAE_CHANNEL(0x8080, 1), + DMAE_CHANNEL(0x8100, 2), + DMAE_CHANNEL(0x8180, 3), + DMAE_CHANNEL(0x8200, 4), + DMAE_CHANNEL(0x8280, 5), + DMAE_CHANNEL(0x8300, 6), + DMAE_CHANNEL(0x8380, 7), + DMAE_CHANNEL(0x8400, 8), + DMAE_CHANNEL(0x8480, 9), + DMAE_CHANNEL(0x8500, 10), + DMAE_CHANNEL(0x8580, 11), + DMAE_CHANNEL(0x8600, 12), +}; + +static struct sh_dmae_pdata r8a7790_audio_dmac_platform_data = { + .slave = r8a7790_audio_dmac_slaves, + .slave_num = ARRAY_SIZE(r8a7790_audio_dmac_slaves), + .channel = r8a7790_audio_dmac_channels, + .channel_num = ARRAY_SIZE(r8a7790_audio_dmac_channels), + .ts_low_shift = TS_LOW_SHIFT, + .ts_low_mask = TS_LOW_BIT << TS_LOW_SHIFT, + .ts_high_shift = TS_HI_SHIFT, + .ts_high_mask = TS_HI_BIT << TS_HI_SHIFT, + .ts_shift = dma_ts_shift, + .ts_shift_num = ARRAY_SIZE(dma_ts_shift), + .dmaor_init = DMAOR_DME, + .chclr_present = 1, + .chclr_bitwise = 1, +}; + +static struct resource r8a7790_audio_dmac_resources[] = { + /* Channel registers and DMAOR for low */ + DEFINE_RES_MEM(0xec700020, 0x8663 - 0x20), + DEFINE_RES_IRQ(gic_spi(346)), + DEFINE_RES_NAMED(gic_spi(320), 13, NULL, IORESOURCE_IRQ), + + /* Channel registers and DMAOR for hi */ + DEFINE_RES_MEM(0xec720020, 0x8663 - 0x20), /* hi */ + DEFINE_RES_IRQ(gic_spi(347)), + DEFINE_RES_NAMED(gic_spi(333), 13, NULL, IORESOURCE_IRQ), +}; + +#define r8a7790_register_audio_dmac(id) \ + platform_device_register_resndata( \ + &platform_bus, "sh-dma-engine", id, \ + &r8a7790_audio_dmac_resources[id * 3], 3, \ + &r8a7790_audio_dmac_platform_data, \ + sizeof(r8a7790_audio_dmac_platform_data)) + static const struct resource pfc_resources[] __initconst = { DEFINE_RES_MEM(0xe6060000, 0x250), }; @@ -101,6 +189,8 @@ void __init r8a7790_pinmux_init(void) r8a7790_register_i2c(1); r8a7790_register_i2c(2); r8a7790_register_i2c(3); + r8a7790_register_audio_dmac(0); + r8a7790_register_audio_dmac(1); } #define __R8A7790_SCIF(scif_type, _scscr, index, baseaddr, irq) \ |