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-rw-r--r--arch/arm/mach-omap2/dma.c117
1 files changed, 117 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/dma.c b/arch/arm/mach-omap2/dma.c
index 1ed4be184a29..e58c13a9bea5 100644
--- a/arch/arm/mach-omap2/dma.c
+++ b/arch/arm/mach-omap2/dma.c
@@ -28,6 +28,7 @@
#include <linux/init.h>
#include <linux/device.h>
#include <linux/dma-mapping.h>
+#include <linux/dmaengine.h>
#include <linux/of.h>
#include <linux/omap-dma.h>
@@ -203,6 +204,108 @@ static unsigned configure_dma_errata(void)
return errata;
}
+static const struct dma_slave_map omap24xx_sdma_map[] = {
+ { "omap-gpmc", "rxtx", SDMA_FILTER_PARAM(4) },
+ { "omap-aes", "tx", SDMA_FILTER_PARAM(9) },
+ { "omap-aes", "rx", SDMA_FILTER_PARAM(10) },
+ { "omap-sham", "rx", SDMA_FILTER_PARAM(13) },
+ { "omap2_mcspi.2", "tx0", SDMA_FILTER_PARAM(15) },
+ { "omap2_mcspi.2", "rx0", SDMA_FILTER_PARAM(16) },
+ { "omap-mcbsp.3", "tx", SDMA_FILTER_PARAM(17) },
+ { "omap-mcbsp.3", "rx", SDMA_FILTER_PARAM(18) },
+ { "omap-mcbsp.4", "tx", SDMA_FILTER_PARAM(19) },
+ { "omap-mcbsp.4", "rx", SDMA_FILTER_PARAM(20) },
+ { "omap-mcbsp.5", "tx", SDMA_FILTER_PARAM(21) },
+ { "omap-mcbsp.5", "rx", SDMA_FILTER_PARAM(22) },
+ { "omap2_mcspi.2", "tx1", SDMA_FILTER_PARAM(23) },
+ { "omap2_mcspi.2", "rx1", SDMA_FILTER_PARAM(24) },
+ { "omap_i2c.1", "tx", SDMA_FILTER_PARAM(27) },
+ { "omap_i2c.1", "rx", SDMA_FILTER_PARAM(28) },
+ { "omap_i2c.2", "tx", SDMA_FILTER_PARAM(29) },
+ { "omap_i2c.2", "rx", SDMA_FILTER_PARAM(30) },
+ { "omap-mcbsp.1", "tx", SDMA_FILTER_PARAM(31) },
+ { "omap-mcbsp.1", "rx", SDMA_FILTER_PARAM(32) },
+ { "omap-mcbsp.2", "tx", SDMA_FILTER_PARAM(33) },
+ { "omap-mcbsp.2", "rx", SDMA_FILTER_PARAM(34) },
+ { "omap2_mcspi.0", "tx0", SDMA_FILTER_PARAM(35) },
+ { "omap2_mcspi.0", "rx0", SDMA_FILTER_PARAM(36) },
+ { "omap2_mcspi.0", "tx1", SDMA_FILTER_PARAM(37) },
+ { "omap2_mcspi.0", "rx1", SDMA_FILTER_PARAM(38) },
+ { "omap2_mcspi.0", "tx2", SDMA_FILTER_PARAM(39) },
+ { "omap2_mcspi.0", "rx2", SDMA_FILTER_PARAM(40) },
+ { "omap2_mcspi.0", "tx3", SDMA_FILTER_PARAM(41) },
+ { "omap2_mcspi.0", "rx3", SDMA_FILTER_PARAM(42) },
+ { "omap2_mcspi.1", "tx0", SDMA_FILTER_PARAM(43) },
+ { "omap2_mcspi.1", "rx0", SDMA_FILTER_PARAM(44) },
+ { "omap2_mcspi.1", "tx1", SDMA_FILTER_PARAM(45) },
+ { "omap2_mcspi.1", "rx1", SDMA_FILTER_PARAM(46) },
+ { "omap_hsmmc.1", "tx", SDMA_FILTER_PARAM(47) },
+ { "omap_hsmmc.1", "rx", SDMA_FILTER_PARAM(48) },
+ { "omap_uart.0", "tx", SDMA_FILTER_PARAM(49) },
+ { "omap_uart.0", "rx", SDMA_FILTER_PARAM(50) },
+ { "omap_uart.1", "tx", SDMA_FILTER_PARAM(51) },
+ { "omap_uart.1", "rx", SDMA_FILTER_PARAM(52) },
+ { "omap_uart.2", "tx", SDMA_FILTER_PARAM(53) },
+ { "omap_uart.2", "rx", SDMA_FILTER_PARAM(54) },
+ { "omap_hsmmc.0", "tx", SDMA_FILTER_PARAM(61) },
+ { "omap_hsmmc.0", "rx", SDMA_FILTER_PARAM(62) },
+};
+
+static const struct dma_slave_map omap3xxx_sdma_map[] = {
+ { "omap-gpmc", "rxtx", SDMA_FILTER_PARAM(4) },
+ { "omap2_mcspi.2", "tx0", SDMA_FILTER_PARAM(15) },
+ { "omap2_mcspi.2", "rx0", SDMA_FILTER_PARAM(16) },
+ { "omap-mcbsp.3", "tx", SDMA_FILTER_PARAM(17) },
+ { "omap-mcbsp.3", "rx", SDMA_FILTER_PARAM(18) },
+ { "omap-mcbsp.4", "tx", SDMA_FILTER_PARAM(19) },
+ { "omap-mcbsp.4", "rx", SDMA_FILTER_PARAM(20) },
+ { "omap-mcbsp.5", "tx", SDMA_FILTER_PARAM(21) },
+ { "omap-mcbsp.5", "rx", SDMA_FILTER_PARAM(22) },
+ { "omap2_mcspi.2", "tx1", SDMA_FILTER_PARAM(23) },
+ { "omap2_mcspi.2", "rx1", SDMA_FILTER_PARAM(24) },
+ { "omap_i2c.3", "tx", SDMA_FILTER_PARAM(25) },
+ { "omap_i2c.3", "rx", SDMA_FILTER_PARAM(26) },
+ { "omap_i2c.1", "tx", SDMA_FILTER_PARAM(27) },
+ { "omap_i2c.1", "rx", SDMA_FILTER_PARAM(28) },
+ { "omap_i2c.2", "tx", SDMA_FILTER_PARAM(29) },
+ { "omap_i2c.2", "rx", SDMA_FILTER_PARAM(30) },
+ { "omap-mcbsp.1", "tx", SDMA_FILTER_PARAM(31) },
+ { "omap-mcbsp.1", "rx", SDMA_FILTER_PARAM(32) },
+ { "omap-mcbsp.2", "tx", SDMA_FILTER_PARAM(33) },
+ { "omap-mcbsp.2", "rx", SDMA_FILTER_PARAM(34) },
+ { "omap2_mcspi.0", "tx0", SDMA_FILTER_PARAM(35) },
+ { "omap2_mcspi.0", "rx0", SDMA_FILTER_PARAM(36) },
+ { "omap2_mcspi.0", "tx1", SDMA_FILTER_PARAM(37) },
+ { "omap2_mcspi.0", "rx1", SDMA_FILTER_PARAM(38) },
+ { "omap2_mcspi.0", "tx2", SDMA_FILTER_PARAM(39) },
+ { "omap2_mcspi.0", "rx2", SDMA_FILTER_PARAM(40) },
+ { "omap2_mcspi.0", "tx3", SDMA_FILTER_PARAM(41) },
+ { "omap2_mcspi.0", "rx3", SDMA_FILTER_PARAM(42) },
+ { "omap2_mcspi.1", "tx0", SDMA_FILTER_PARAM(43) },
+ { "omap2_mcspi.1", "rx0", SDMA_FILTER_PARAM(44) },
+ { "omap2_mcspi.1", "tx1", SDMA_FILTER_PARAM(45) },
+ { "omap2_mcspi.1", "rx1", SDMA_FILTER_PARAM(46) },
+ { "omap_hsmmc.1", "tx", SDMA_FILTER_PARAM(47) },
+ { "omap_hsmmc.1", "rx", SDMA_FILTER_PARAM(48) },
+ { "omap_uart.0", "tx", SDMA_FILTER_PARAM(49) },
+ { "omap_uart.0", "rx", SDMA_FILTER_PARAM(50) },
+ { "omap_uart.1", "tx", SDMA_FILTER_PARAM(51) },
+ { "omap_uart.1", "rx", SDMA_FILTER_PARAM(52) },
+ { "omap_uart.2", "tx", SDMA_FILTER_PARAM(53) },
+ { "omap_uart.2", "rx", SDMA_FILTER_PARAM(54) },
+ { "omap_hsmmc.0", "tx", SDMA_FILTER_PARAM(61) },
+ { "omap_hsmmc.0", "rx", SDMA_FILTER_PARAM(62) },
+ { "omap-aes", "tx", SDMA_FILTER_PARAM(65) },
+ { "omap-aes", "rx", SDMA_FILTER_PARAM(66) },
+ { "omap-sham", "rx", SDMA_FILTER_PARAM(69) },
+ { "omap2_mcspi.3", "tx0", SDMA_FILTER_PARAM(70) },
+ { "omap2_mcspi.3", "rx0", SDMA_FILTER_PARAM(71) },
+ { "omap_hsmmc.2", "tx", SDMA_FILTER_PARAM(77) },
+ { "omap_hsmmc.2", "rx", SDMA_FILTER_PARAM(78) },
+ { "omap_uart.3", "tx", SDMA_FILTER_PARAM(81) },
+ { "omap_uart.3", "rx", SDMA_FILTER_PARAM(82) },
+};
+
static struct omap_system_dma_plat_info dma_plat_info __initdata = {
.reg_map = reg_map,
.channel_stride = 0x60,
@@ -231,6 +334,20 @@ static int __init omap2_system_dma_init_dev(struct omap_hwmod *oh, void *unused)
p.dma_attr = (struct omap_dma_dev_attr *)oh->dev_attr;
p.errata = configure_dma_errata();
+ if (!of_have_populated_dt()) {
+ if (soc_is_omap24xx()) {
+ p.slave_map = omap24xx_sdma_map;
+ p.slavecnt = ARRAY_SIZE(omap24xx_sdma_map);
+ } else if (soc_is_omap34xx() || soc_is_omap3630()) {
+ p.slave_map = omap3xxx_sdma_map;
+ p.slavecnt = ARRAY_SIZE(omap3xxx_sdma_map);
+ } else {
+ pr_err("%s: The legacy DMA map is not provided!\n",
+ __func__);
+ return -ENODEV;
+ }
+ }
+
pdev = omap_device_build(name, 0, oh, &p, sizeof(p));
if (IS_ERR(pdev)) {
pr_err("%s: Can't build omap_device for %s:%s.\n",
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-26 23:46:39 +0100