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authorMaxime Ripard <maxime.ripard@bootlin.com>2018-07-10 10:00:59 +0200
committerMaxime Ripard <maxime.ripard@bootlin.com>2018-07-11 10:55:43 +0200
commit5fdec16b69da273d5654c2c3be01246a59e1bcba (patch)
treec1a7426aac9c085dbd6177cf640c9e8ca25fe280 /drivers/soc/sunxi
parent0ec201cfe7be7d2fd0667450f6214a7f43aa1309 (diff)
drivers: soc: sunxi: Add support for the C1 SRAM region
This introduces support for the SRAM C1 section, that is controlled by the system controller. This SRAM area can be muxed either to the CPU or the Video Engine, that needs this area to store various tables (e.g. the Huffman VLD decoding tables). This only supports devices with the same layout as the A10 (which also includes the A13, A20, A33 and other SoCs). Reviewed-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Diffstat (limited to 'drivers/soc/sunxi')
-rw-r--r--drivers/soc/sunxi/sunxi_sram.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/soc/sunxi/sunxi_sram.c b/drivers/soc/sunxi/sunxi_sram.c
index 236f34307c0f..b19fa2cc67c2 100644
--- a/drivers/soc/sunxi/sunxi_sram.c
+++ b/drivers/soc/sunxi/sunxi_sram.c
@@ -64,6 +64,12 @@ static struct sunxi_sram_desc sun4i_a10_sram_a3_a4 = {
SUNXI_SRAM_MAP(1, 1, "emac")),
};
+static struct sunxi_sram_desc sun4i_a10_sram_c1 = {
+ .data = SUNXI_SRAM_DATA("C1", 0x0, 0x0, 31,
+ SUNXI_SRAM_MAP(0, 0, "cpu"),
+ SUNXI_SRAM_MAP(0x7fffffff, 1, "ve")),
+};
+
static struct sunxi_sram_desc sun4i_a10_sram_d = {
.data = SUNXI_SRAM_DATA("D", 0x4, 0x0, 1,
SUNXI_SRAM_MAP(0, 0, "cpu"),
@@ -82,6 +88,10 @@ static const struct of_device_id sunxi_sram_dt_ids[] = {
.data = &sun4i_a10_sram_a3_a4.data,
},
{
+ .compatible = "allwinner,sun4i-a10-sram-c1",
+ .data = &sun4i_a10_sram_c1.data,
+ },
+ {
.compatible = "allwinner,sun4i-a10-sram-d",
.data = &sun4i_a10_sram_d.data,
},