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ARM: OMAP2+: DMA: Provide dma_slave_map to omap-dma for legacy boot
We still have some boards booting in legacy mode and they will need to have the device/slave -> filter_fn mapping so we can convert the OMAP drivers to use the new dmaengine API for requesting channels. Only some OMAP24xx and OMAP3xxx boards can boot in legacy mode which means we only need to provide the map for these SoCs. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Peter Ujfalusi
Tony Lindgren
parent
c4e357839e
commit
731ec4d881
1 changed files with 117 additions and 0 deletions
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@ -28,6 +28,7 @@
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#include <linux/init.h>
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#include <linux/device.h>
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#include <linux/dma-mapping.h>
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#include <linux/dmaengine.h>
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#include <linux/of.h>
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#include <linux/omap-dma.h>
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@ -203,6 +204,108 @@ static unsigned configure_dma_errata(void)
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return errata;
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}
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static const struct dma_slave_map omap24xx_sdma_map[] = {
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{ "omap-gpmc", "rxtx", SDMA_FILTER_PARAM(4) },
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{ "omap-aes", "tx", SDMA_FILTER_PARAM(9) },
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{ "omap-aes", "rx", SDMA_FILTER_PARAM(10) },
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{ "omap-sham", "rx", SDMA_FILTER_PARAM(13) },
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{ "omap2_mcspi.2", "tx0", SDMA_FILTER_PARAM(15) },
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{ "omap2_mcspi.2", "rx0", SDMA_FILTER_PARAM(16) },
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{ "omap-mcbsp.3", "tx", SDMA_FILTER_PARAM(17) },
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{ "omap-mcbsp.3", "rx", SDMA_FILTER_PARAM(18) },
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{ "omap-mcbsp.4", "tx", SDMA_FILTER_PARAM(19) },
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{ "omap-mcbsp.4", "rx", SDMA_FILTER_PARAM(20) },
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{ "omap-mcbsp.5", "tx", SDMA_FILTER_PARAM(21) },
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{ "omap-mcbsp.5", "rx", SDMA_FILTER_PARAM(22) },
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{ "omap2_mcspi.2", "tx1", SDMA_FILTER_PARAM(23) },
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{ "omap2_mcspi.2", "rx1", SDMA_FILTER_PARAM(24) },
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{ "omap_i2c.1", "tx", SDMA_FILTER_PARAM(27) },
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{ "omap_i2c.1", "rx", SDMA_FILTER_PARAM(28) },
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{ "omap_i2c.2", "tx", SDMA_FILTER_PARAM(29) },
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{ "omap_i2c.2", "rx", SDMA_FILTER_PARAM(30) },
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{ "omap-mcbsp.1", "tx", SDMA_FILTER_PARAM(31) },
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{ "omap-mcbsp.1", "rx", SDMA_FILTER_PARAM(32) },
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{ "omap-mcbsp.2", "tx", SDMA_FILTER_PARAM(33) },
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{ "omap-mcbsp.2", "rx", SDMA_FILTER_PARAM(34) },
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{ "omap2_mcspi.0", "tx0", SDMA_FILTER_PARAM(35) },
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{ "omap2_mcspi.0", "rx0", SDMA_FILTER_PARAM(36) },
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{ "omap2_mcspi.0", "tx1", SDMA_FILTER_PARAM(37) },
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{ "omap2_mcspi.0", "rx1", SDMA_FILTER_PARAM(38) },
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{ "omap2_mcspi.0", "tx2", SDMA_FILTER_PARAM(39) },
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{ "omap2_mcspi.0", "rx2", SDMA_FILTER_PARAM(40) },
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{ "omap2_mcspi.0", "tx3", SDMA_FILTER_PARAM(41) },
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{ "omap2_mcspi.0", "rx3", SDMA_FILTER_PARAM(42) },
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{ "omap2_mcspi.1", "tx0", SDMA_FILTER_PARAM(43) },
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{ "omap2_mcspi.1", "rx0", SDMA_FILTER_PARAM(44) },
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{ "omap2_mcspi.1", "tx1", SDMA_FILTER_PARAM(45) },
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{ "omap2_mcspi.1", "rx1", SDMA_FILTER_PARAM(46) },
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{ "omap_hsmmc.1", "tx", SDMA_FILTER_PARAM(47) },
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{ "omap_hsmmc.1", "rx", SDMA_FILTER_PARAM(48) },
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{ "omap_uart.0", "tx", SDMA_FILTER_PARAM(49) },
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{ "omap_uart.0", "rx", SDMA_FILTER_PARAM(50) },
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{ "omap_uart.1", "tx", SDMA_FILTER_PARAM(51) },
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{ "omap_uart.1", "rx", SDMA_FILTER_PARAM(52) },
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{ "omap_uart.2", "tx", SDMA_FILTER_PARAM(53) },
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{ "omap_uart.2", "rx", SDMA_FILTER_PARAM(54) },
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{ "omap_hsmmc.0", "tx", SDMA_FILTER_PARAM(61) },
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{ "omap_hsmmc.0", "rx", SDMA_FILTER_PARAM(62) },
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};
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static const struct dma_slave_map omap3xxx_sdma_map[] = {
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{ "omap-gpmc", "rxtx", SDMA_FILTER_PARAM(4) },
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{ "omap2_mcspi.2", "tx0", SDMA_FILTER_PARAM(15) },
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{ "omap2_mcspi.2", "rx0", SDMA_FILTER_PARAM(16) },
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{ "omap-mcbsp.3", "tx", SDMA_FILTER_PARAM(17) },
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{ "omap-mcbsp.3", "rx", SDMA_FILTER_PARAM(18) },
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{ "omap-mcbsp.4", "tx", SDMA_FILTER_PARAM(19) },
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{ "omap-mcbsp.4", "rx", SDMA_FILTER_PARAM(20) },
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{ "omap-mcbsp.5", "tx", SDMA_FILTER_PARAM(21) },
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{ "omap-mcbsp.5", "rx", SDMA_FILTER_PARAM(22) },
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{ "omap2_mcspi.2", "tx1", SDMA_FILTER_PARAM(23) },
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{ "omap2_mcspi.2", "rx1", SDMA_FILTER_PARAM(24) },
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{ "omap_i2c.3", "tx", SDMA_FILTER_PARAM(25) },
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{ "omap_i2c.3", "rx", SDMA_FILTER_PARAM(26) },
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{ "omap_i2c.1", "tx", SDMA_FILTER_PARAM(27) },
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{ "omap_i2c.1", "rx", SDMA_FILTER_PARAM(28) },
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{ "omap_i2c.2", "tx", SDMA_FILTER_PARAM(29) },
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{ "omap_i2c.2", "rx", SDMA_FILTER_PARAM(30) },
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{ "omap-mcbsp.1", "tx", SDMA_FILTER_PARAM(31) },
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{ "omap-mcbsp.1", "rx", SDMA_FILTER_PARAM(32) },
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{ "omap-mcbsp.2", "tx", SDMA_FILTER_PARAM(33) },
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{ "omap-mcbsp.2", "rx", SDMA_FILTER_PARAM(34) },
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{ "omap2_mcspi.0", "tx0", SDMA_FILTER_PARAM(35) },
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{ "omap2_mcspi.0", "rx0", SDMA_FILTER_PARAM(36) },
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{ "omap2_mcspi.0", "tx1", SDMA_FILTER_PARAM(37) },
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{ "omap2_mcspi.0", "rx1", SDMA_FILTER_PARAM(38) },
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{ "omap2_mcspi.0", "tx2", SDMA_FILTER_PARAM(39) },
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{ "omap2_mcspi.0", "rx2", SDMA_FILTER_PARAM(40) },
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{ "omap2_mcspi.0", "tx3", SDMA_FILTER_PARAM(41) },
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{ "omap2_mcspi.0", "rx3", SDMA_FILTER_PARAM(42) },
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{ "omap2_mcspi.1", "tx0", SDMA_FILTER_PARAM(43) },
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{ "omap2_mcspi.1", "rx0", SDMA_FILTER_PARAM(44) },
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{ "omap2_mcspi.1", "tx1", SDMA_FILTER_PARAM(45) },
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{ "omap2_mcspi.1", "rx1", SDMA_FILTER_PARAM(46) },
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{ "omap_hsmmc.1", "tx", SDMA_FILTER_PARAM(47) },
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{ "omap_hsmmc.1", "rx", SDMA_FILTER_PARAM(48) },
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{ "omap_uart.0", "tx", SDMA_FILTER_PARAM(49) },
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{ "omap_uart.0", "rx", SDMA_FILTER_PARAM(50) },
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{ "omap_uart.1", "tx", SDMA_FILTER_PARAM(51) },
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{ "omap_uart.1", "rx", SDMA_FILTER_PARAM(52) },
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{ "omap_uart.2", "tx", SDMA_FILTER_PARAM(53) },
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{ "omap_uart.2", "rx", SDMA_FILTER_PARAM(54) },
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{ "omap_hsmmc.0", "tx", SDMA_FILTER_PARAM(61) },
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{ "omap_hsmmc.0", "rx", SDMA_FILTER_PARAM(62) },
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{ "omap-aes", "tx", SDMA_FILTER_PARAM(65) },
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{ "omap-aes", "rx", SDMA_FILTER_PARAM(66) },
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{ "omap-sham", "rx", SDMA_FILTER_PARAM(69) },
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{ "omap2_mcspi.3", "tx0", SDMA_FILTER_PARAM(70) },
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{ "omap2_mcspi.3", "rx0", SDMA_FILTER_PARAM(71) },
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{ "omap_hsmmc.2", "tx", SDMA_FILTER_PARAM(77) },
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{ "omap_hsmmc.2", "rx", SDMA_FILTER_PARAM(78) },
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{ "omap_uart.3", "tx", SDMA_FILTER_PARAM(81) },
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{ "omap_uart.3", "rx", SDMA_FILTER_PARAM(82) },
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};
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static struct omap_system_dma_plat_info dma_plat_info __initdata = {
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.reg_map = reg_map,
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.channel_stride = 0x60,
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@ -231,6 +334,20 @@ static int __init omap2_system_dma_init_dev(struct omap_hwmod *oh, void *unused)
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p.dma_attr = (struct omap_dma_dev_attr *)oh->dev_attr;
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p.errata = configure_dma_errata();
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if (!of_have_populated_dt()) {
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if (soc_is_omap24xx()) {
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p.slave_map = omap24xx_sdma_map;
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p.slavecnt = ARRAY_SIZE(omap24xx_sdma_map);
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} else if (soc_is_omap34xx() || soc_is_omap3630()) {
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p.slave_map = omap3xxx_sdma_map;
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p.slavecnt = ARRAY_SIZE(omap3xxx_sdma_map);
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} else {
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pr_err("%s: The legacy DMA map is not provided!\n",
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__func__);
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return -ENODEV;
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}
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}
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pdev = omap_device_build(name, 0, oh, &p, sizeof(p));
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if (IS_ERR(pdev)) {
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pr_err("%s: Can't build omap_device for %s:%s.\n",
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