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author | Viresh Kumar <viresh.kumar@st.com> | 2012-03-26 06:59:23 +0200 |
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committer | Arnd Bergmann <arnd@arndb.de> | 2012-04-22 22:41:35 +0200 |
commit | 0b7ee71794b043de8a02d8887b69a57e4003106a (patch) | |
tree | fb4386d24146993d3c1400abbc6974c27c16722d /arch/arm/mach-spear3xx/spear300.c | |
parent | ARM: SPEAr3xx: Add device-tree support to SPEAr3xx architecture (diff) | |
download | linux-0b7ee71794b043de8a02d8887b69a57e4003106a.tar.xz linux-0b7ee71794b043de8a02d8887b69a57e4003106a.zip |
SPEAr: Add PL080 DMA support for 3xx and 6xx
Both SPEAr3xx and SPEAr6xx families have one instance of ARM PL080 DMA
controller. This patch adds in support for that.
Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Diffstat (limited to 'arch/arm/mach-spear3xx/spear300.c')
-rw-r--r-- | arch/arm/mach-spear3xx/spear300.c | 193 |
1 files changed, 193 insertions, 0 deletions
diff --git a/arch/arm/mach-spear3xx/spear300.c b/arch/arm/mach-spear3xx/spear300.c index c876c6a2caad..f46fc2692ab6 100644 --- a/arch/arm/mach-spear3xx/spear300.c +++ b/arch/arm/mach-spear3xx/spear300.c @@ -13,6 +13,7 @@ #define pr_fmt(fmt) "SPEAr300: " fmt +#include <linux/amba/pl08x.h> #include <linux/of_platform.h> #include <asm/hardware/vic.h> #include <asm/mach/arch.h> @@ -440,10 +441,199 @@ static struct pmx_dev *spear300_evb_pmx_devs[] = { &spear300_pmx_gpio1, }; +/* DMAC platform data's slave info */ +struct pl08x_channel_data spear300_dma_info[] = { + { + .bus_id = "uart0_rx", + .min_signal = 2, + .max_signal = 2, + .muxval = 0, + .cctl = 0, + .periph_buses = PL08X_AHB1, + }, { + .bus_id = "uart0_tx", + .min_signal = 3, + .max_signal = 3, + .muxval = 0, + .cctl = 0, + .periph_buses = PL08X_AHB1, + }, { + .bus_id = "ssp0_rx", + .min_signal = 8, + .max_signal = 8, + .muxval = 0, + .cctl = 0, + .periph_buses = PL08X_AHB1, + }, { + .bus_id = "ssp0_tx", + .min_signal = 9, + .max_signal = 9, + .muxval = 0, + .cctl = 0, + .periph_buses = PL08X_AHB1, + }, { + .bus_id = "i2c_rx", + .min_signal = 10, + .max_signal = 10, + .muxval = 0, + .cctl = 0, + .periph_buses = PL08X_AHB1, + }, { + .bus_id = "i2c_tx", + .min_signal = 11, + .max_signal = 11, + .muxval = 0, + .cctl = 0, + .periph_buses = PL08X_AHB1, + }, { + .bus_id = "irda", + .min_signal = 12, + .max_signal = 12, + .muxval = 0, + .cctl = 0, + .periph_buses = PL08X_AHB1, + }, { + .bus_id = "adc", + .min_signal = 13, + .max_signal = 13, + .muxval = 0, + .cctl = 0, + .periph_buses = PL08X_AHB1, + }, { + .bus_id = "to_jpeg", + .min_signal = 14, + .max_signal = 14, + .muxval = 0, + .cctl = 0, + .periph_buses = PL08X_AHB1, + }, { + .bus_id = "from_jpeg", + .min_signal = 15, + .max_signal = 15, + .muxval = 0, + .cctl = 0, + .periph_buses = PL08X_AHB1, + }, { + .bus_id = "ras0_rx", + .min_signal = 0, + .max_signal = 0, + .muxval = 1, + .cctl = 0, + .periph_buses = PL08X_AHB1, + }, { + .bus_id = "ras0_tx", + .min_signal = 1, + .max_signal = 1, + .muxval = 1, + .cctl = 0, + .periph_buses = PL08X_AHB1, + }, { + .bus_id = "ras1_rx", + .min_signal = 2, + .max_signal = 2, + .muxval = 1, + .cctl = 0, + .periph_buses = PL08X_AHB1, + }, { + .bus_id = "ras1_tx", + .min_signal = 3, + .max_signal = 3, + .muxval = 1, + .cctl = 0, + .periph_buses = PL08X_AHB1, + }, { + .bus_id = "ras2_rx", + .min_signal = 4, + .max_signal = 4, + .muxval = 1, + .cctl = 0, + .periph_buses = PL08X_AHB1, + }, { + .bus_id = "ras2_tx", + .min_signal = 5, + .max_signal = 5, + .muxval = 1, + .cctl = 0, + .periph_buses = PL08X_AHB1, + }, { + .bus_id = "ras3_rx", + .min_signal = 6, + .max_signal = 6, + .muxval = 1, + .cctl = 0, + .periph_buses = PL08X_AHB1, + }, { + .bus_id = "ras3_tx", + .min_signal = 7, + .max_signal = 7, + .muxval = 1, + .cctl = 0, + .periph_buses = PL08X_AHB1, + }, { + .bus_id = "ras4_rx", + .min_signal = 8, + .max_signal = 8, + .muxval = 1, + .cctl = 0, + .periph_buses = PL08X_AHB1, + }, { + .bus_id = "ras4_tx", + .min_signal = 9, + .max_signal = 9, + .muxval = 1, + .cctl = 0, + .periph_buses = PL08X_AHB1, + }, { + .bus_id = "ras5_rx", + .min_signal = 10, + .max_signal = 10, + .muxval = 1, + .cctl = 0, + .periph_buses = PL08X_AHB1, + }, { + .bus_id = "ras5_tx", + .min_signal = 11, + .max_signal = 11, + .muxval = 1, + .cctl = 0, + .periph_buses = PL08X_AHB1, + }, { + .bus_id = "ras6_rx", + .min_signal = 12, + .max_signal = 12, + .muxval = 1, + .cctl = 0, + .periph_buses = PL08X_AHB1, + }, { + .bus_id = "ras6_tx", + .min_signal = 13, + .max_signal = 13, + .muxval = 1, + .cctl = 0, + .periph_buses = PL08X_AHB1, + }, { + .bus_id = "ras7_rx", + .min_signal = 14, + .max_signal = 14, + .muxval = 1, + .cctl = 0, + .periph_buses = PL08X_AHB1, + }, { + .bus_id = "ras7_tx", + .min_signal = 15, + .max_signal = 15, + .muxval = 1, + .cctl = 0, + .periph_buses = PL08X_AHB1, + }, +}; + /* Add SPEAr300 auxdata to pass platform data */ static struct of_dev_auxdata spear300_auxdata_lookup[] __initdata = { OF_DEV_AUXDATA("arm,pl022", SPEAR3XX_ICM1_SSP_BASE, NULL, &pl022_plat_data), + OF_DEV_AUXDATA("arm,pl080", SPEAR3XX_ICM3_DMA_BASE, NULL, + &pl080_plat_data), {} }; @@ -451,6 +641,9 @@ static void __init spear300_dt_init(void) { int ret = -EINVAL; + pl080_plat_data.slave_channels = spear300_dma_info; + pl080_plat_data.num_slave_channels = ARRAY_SIZE(spear300_dma_info); + of_platform_populate(NULL, of_default_bus_match_table, spear300_auxdata_lookup, NULL); |