From 5fdec16b69da273d5654c2c3be01246a59e1bcba Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Tue, 10 Jul 2018 10:00:59 +0200 Subject: 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 Signed-off-by: Maxime Ripard Signed-off-by: Paul Kocialkowski Signed-off-by: Maxime Ripard --- drivers/soc/sunxi/sunxi_sram.c | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'drivers/soc') 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"), @@ -81,6 +87,10 @@ static const struct of_device_id sunxi_sram_dt_ids[] = { .compatible = "allwinner,sun4i-a10-sram-a3-a4", .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, -- cgit v1.2.3