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>
diff --git a/arch/arm/mach-spear3xx/spear310.c b/arch/arm/mach-spear3xx/spear310.c
index 641fd4c..063e7da 100644
--- a/arch/arm/mach-spear3xx/spear310.c
+++ b/arch/arm/mach-spear3xx/spear310.c
@@ -284,6 +284,193 @@
&spear310_pmx_tdm0,
};
+/* DMAC platform data's slave info */
+struct pl08x_channel_data spear310_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 = "uart1_rx",
+ .min_signal = 0,
+ .max_signal = 0,
+ .muxval = 1,
+ .cctl = 0,
+ .periph_buses = PL08X_AHB1,
+ }, {
+ .bus_id = "uart1_tx",
+ .min_signal = 1,
+ .max_signal = 1,
+ .muxval = 1,
+ .cctl = 0,
+ .periph_buses = PL08X_AHB1,
+ }, {
+ .bus_id = "uart2_rx",
+ .min_signal = 2,
+ .max_signal = 2,
+ .muxval = 1,
+ .cctl = 0,
+ .periph_buses = PL08X_AHB1,
+ }, {
+ .bus_id = "uart2_tx",
+ .min_signal = 3,
+ .max_signal = 3,
+ .muxval = 1,
+ .cctl = 0,
+ .periph_buses = PL08X_AHB1,
+ }, {
+ .bus_id = "uart3_rx",
+ .min_signal = 4,
+ .max_signal = 4,
+ .muxval = 1,
+ .cctl = 0,
+ .periph_buses = PL08X_AHB1,
+ }, {
+ .bus_id = "uart3_tx",
+ .min_signal = 5,
+ .max_signal = 5,
+ .muxval = 1,
+ .cctl = 0,
+ .periph_buses = PL08X_AHB1,
+ }, {
+ .bus_id = "uart4_rx",
+ .min_signal = 6,
+ .max_signal = 6,
+ .muxval = 1,
+ .cctl = 0,
+ .periph_buses = PL08X_AHB1,
+ }, {
+ .bus_id = "uart4_tx",
+ .min_signal = 7,
+ .max_signal = 7,
+ .muxval = 1,
+ .cctl = 0,
+ .periph_buses = PL08X_AHB1,
+ }, {
+ .bus_id = "uart5_rx",
+ .min_signal = 8,
+ .max_signal = 8,
+ .muxval = 1,
+ .cctl = 0,
+ .periph_buses = PL08X_AHB1,
+ }, {
+ .bus_id = "uart5_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,
+ },
+};
+
/* uart devices plat data */
static struct amba_pl011_data spear310_uart_data[] = {
{
@@ -313,6 +500,8 @@
static struct of_dev_auxdata spear310_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),
OF_DEV_AUXDATA("arm,pl011", SPEAR310_UART1_BASE, NULL,
&spear310_uart_data[0]),
OF_DEV_AUXDATA("arm,pl011", SPEAR310_UART2_BASE, NULL,
@@ -331,6 +520,9 @@
void __iomem *base;
int ret = 0;
+ pl080_plat_data.slave_channels = spear310_dma_info;
+ pl080_plat_data.num_slave_channels = ARRAY_SIZE(spear310_dma_info);
+
of_platform_populate(NULL, of_default_bus_match_table,
spear310_auxdata_lookup, NULL);