| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-ID: <50A0C3BF.90509@nvidia.com>
Date: Mon, 12 Nov 2012 17:39:11 +0800
From: Mark Zhang <markz@...dia.com>
To: Thierry Reding <thierry.reding@...onic-design.de>
CC: Stephen Warren <swarren@...dotorg.org>,
"linux-tegra@...r.kernel.org" <linux-tegra@...r.kernel.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/2] ARM: tegra: Add Tegra20 host1x support
On 11/09/2012 09:20 PM, Thierry Reding wrote:
> This commit adds the host1x node along with its children to the Tegra20
> DTSI. Furthermore the OF auxiliary data table is updated to have proper
> names assigned to the platform devices instantiated from the device
> tree. Moreover, the clocks required by host1x and the two display
> controllers are initialized and the pll_d frequency table is completed
> with a few entries to support common HDMI and LVDS display modes.
>
> Signed-off-by: Thierry Reding <thierry.reding@...onic-design.de>
> ---
> arch/arm/boot/dts/tegra20.dtsi | 87 +++++++++++++++++++++++++++++++
> arch/arm/mach-tegra/board-dt-tegra20.c | 9 ++++
> arch/arm/mach-tegra/tegra20_clocks_data.c | 23 ++++----
> 3 files changed, 110 insertions(+), 9 deletions(-)
>
> diff --git a/arch/arm/boot/dts/tegra20.dtsi b/arch/arm/boot/dts/tegra20.dtsi
> index 71a650d..2b4dec9 100644
> --- a/arch/arm/boot/dts/tegra20.dtsi
> +++ b/arch/arm/boot/dts/tegra20.dtsi
> @@ -4,6 +4,93 @@
> compatible = "nvidia,tegra20";
> interrupt-parent = <&intc>;
>
> + host1x {
> + compatible = "nvidia,tegra20-host1x", "simple-bus";
> + reg = <0x50000000 0x00024000>;
> + interrupts = <0 65 0x04 /* mpcore syncpt */
> + 0 67 0x04>; /* mpcore general */
> +
> + #address-cells = <1>;
> + #size-cells = <1>;
> +
> + ranges = <0x54000000 0x54000000 0x04000000>;
> +
> + mpe {
> + compatible = "nvidia,tegra20-mpe";
> + reg = <0x54040000 0x00040000>;
> + interrupts = <0 68 0x04>;
> + };
> +
> + vi {
> + compatible = "nvidia,tegra20-vi";
> + reg = <0x54080000 0x00040000>;
> + interrupts = <0 69 0x04>;
> + };
> +
> + epp {
> + compatible = "nvidia,tegra20-epp";
> + reg = <0x540c0000 0x00040000>;
> + interrupts = <0 70 0x04>;
> + };
> +
> + isp {
> + compatible = "nvidia,tegra20-isp";
> + reg = <0x54100000 0x00040000>;
> + interrupts = <0 71 0x04>;
> + };
> +
> + gr2d {
> + compatible = "nvidia,tegra20-gr2d";
> + reg = <0x54140000 0x00040000>;
> + interrupts = <0 72 0x04>;
> + };
> +
> + gr3d {
> + compatible = "nvidia,tegra20-gr3d";
> + reg = <0x54180000 0x00040000>;
> + };
> +
> + dc@...00000 {
> + compatible = "nvidia,tegra20-dc";
> + reg = <0x54200000 0x00040000>;
> + interrupts = <0 73 0x04>;
> +
> + rgb {
> + status = "disabled";
> + };
> + };
> +
> + dc@...40000 {
> + compatible = "nvidia,tegra20-dc";
> + reg = <0x54240000 0x00040000>;
> + interrupts = <0 74 0x04>;
> +
> + rgb {
> + status = "disabled";
> + };
> + };
> +
> + hdmi {
> + compatible = "nvidia,tegra20-hdmi";
> + reg = <0x54280000 0x00040000>;
> + interrupts = <0 75 0x04>;
> + status = "disabled";
> + };
> +
> + tvo {
> + compatible = "nvidia,tegra20-tvo";
> + reg = <0x542c0000 0x00040000>;
> + interrupts = <0 76 0x04>;
> + status = "disabled";
> + };
> +
> + dsi {
> + compatible = "nvidia,tegra20-dsi";
> + reg = <0x54300000 0x00040000>;
> + status = "disabled";
> + };
> + };
> +
> timer@...04600 {
> compatible = "arm,cortex-a9-twd-timer";
> reg = <0x50040600 0x20>;
> diff --git a/arch/arm/mach-tegra/board-dt-tegra20.c b/arch/arm/mach-tegra/board-dt-tegra20.c
> index 22f5a9b..1afbdd1 100644
> --- a/arch/arm/mach-tegra/board-dt-tegra20.c
> +++ b/arch/arm/mach-tegra/board-dt-tegra20.c
> @@ -93,6 +93,12 @@ struct of_dev_auxdata tegra20_auxdata_lookup[] __initdata = {
> OF_DEV_AUXDATA("nvidia,tegra20-slink", 0x7000D600, "spi_tegra.1", NULL),
> OF_DEV_AUXDATA("nvidia,tegra20-slink", 0x7000D800, "spi_tegra.2", NULL),
> OF_DEV_AUXDATA("nvidia,tegra20-slink", 0x7000DA00, "spi_tegra.3", NULL),
> + OF_DEV_AUXDATA("nvidia,tegra20-host1x", 0x50000000, "tegra-host1x", NULL),
> + OF_DEV_AUXDATA("nvidia,tegra20-dc", 0x54200000, "tegra-dc.0", NULL),
> + OF_DEV_AUXDATA("nvidia,tegra20-dc", 0x54240000, "tegra-dc.1", NULL),
> + OF_DEV_AUXDATA("nvidia,tegra20-hdmi", 0x54280000, "tegra-hdmi", NULL),
> + OF_DEV_AUXDATA("nvidia,tegra20-dsi", 0x54300000, "tegra-dsi", NULL),
> + OF_DEV_AUXDATA("nvidia,tegra20-tvo", 0x542c0000, "tegra-tvo", NULL),
> {}
> };
>
> @@ -116,6 +122,9 @@ static __initdata struct tegra_clk_init_table tegra_dt_clk_init_table[] = {
> { "sbc2", "pll_p", 100000000, false },
> { "sbc3", "pll_p", 100000000, false },
> { "sbc4", "pll_p", 100000000, false },
> + { "host1x", "pll_c", 144000000, false },
> + { "disp1", "pll_p", 600000000, false },
> + { "disp2", "pll_p", 600000000, false },
> { NULL, NULL, 0, 0},
> };
>
> diff --git a/arch/arm/mach-tegra/tegra20_clocks_data.c b/arch/arm/mach-tegra/tegra20_clocks_data.c
> index 9615ee3..2e247f2 100644
> --- a/arch/arm/mach-tegra/tegra20_clocks_data.c
> +++ b/arch/arm/mach-tegra/tegra20_clocks_data.c
> @@ -246,11 +246,16 @@ static struct clk_pll_freq_table tegra_pll_d_freq_table[] = {
> { 19200000, 216000000, 135, 12, 1, 3},
> { 26000000, 216000000, 216, 26, 1, 4},
>
> + { 12000000, 297000000, 99, 4, 1, 4 },
> + { 12000000, 339000000, 113, 4, 1, 4 },
> +
The patch is OK. I'm just curious about how you get the cpcon value
here. According to Tegra 2's TRM, it's not very clear about how to
calculate the cpcon value for pll_d(pll_d is type of CLKPLL1G_MIPI).
I've skimmed the l4t codes as well, the cpcon is hardcode to 8 in the
dynamic m/n/p calculating code blocks.
So, Peter or Prashant, could you help to take a look at this?
> { 12000000, 594000000, 594, 12, 1, 8},
> { 13000000, 594000000, 594, 13, 1, 8},
> { 19200000, 594000000, 495, 16, 1, 8},
> { 26000000, 594000000, 594, 26, 1, 8},
>
> + { 12000000, 616000000, 616, 12, 1, 8},
> +
> { 12000000, 1000000000, 1000, 12, 1, 12},
> { 13000000, 1000000000, 1000, 13, 1, 12},
> { 19200000, 1000000000, 625, 12, 1, 8},
> @@ -930,17 +935,17 @@ PERIPH_CLK(vi, "tegra_camera", "vi", 20, 0x148, 150000000, mux_pllm_pllc_pllp_
> PERIPH_CLK(vi_sensor, "tegra_camera", "vi_sensor", 20, 0x1a8, 150000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71 | PERIPH_NO_RESET); /* scales with voltage and process_id */
> PERIPH_CLK(epp, "epp", NULL, 19, 0x16c, 300000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71); /* scales with voltage and process_id */
> PERIPH_CLK(mpe, "mpe", NULL, 60, 0x170, 250000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71); /* scales with voltage and process_id */
> -PERIPH_CLK(host1x, "host1x", NULL, 28, 0x180, 166000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71); /* scales with voltage and process_id */
> +PERIPH_CLK(host1x, "tegra-host1x", NULL, 28, 0x180, 166000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71); /* scales with voltage and process_id */
> PERIPH_CLK(cve, "cve", NULL, 49, 0x140, 250000000, mux_pllp_plld_pllc_clkm, MUX | DIV_U71); /* requires min voltage */
> -PERIPH_CLK(tvo, "tvo", NULL, 49, 0x188, 250000000, mux_pllp_plld_pllc_clkm, MUX | DIV_U71); /* requires min voltage */
> -PERIPH_CLK(hdmi, "hdmi", NULL, 51, 0x18c, 600000000, mux_pllp_plld_pllc_clkm, MUX | DIV_U71); /* requires min voltage */
> +PERIPH_CLK(tvo, "tegra-tvo", NULL, 49, 0x188, 250000000, mux_pllp_plld_pllc_clkm, MUX | DIV_U71); /* requires min voltage */
> +PERIPH_CLK(hdmi, "tegra-hdmi", NULL, 51, 0x18c, 600000000, mux_pllp_plld_pllc_clkm, MUX | DIV_U71); /* requires min voltage */
> PERIPH_CLK(tvdac, "tvdac", NULL, 53, 0x194, 250000000, mux_pllp_plld_pllc_clkm, MUX | DIV_U71); /* requires min voltage */
> -PERIPH_CLK(disp1, "tegradc.0", NULL, 27, 0x138, 600000000, mux_pllp_plld_pllc_clkm, MUX); /* scales with voltage and process_id */
> -PERIPH_CLK(disp2, "tegradc.1", NULL, 26, 0x13c, 600000000, mux_pllp_plld_pllc_clkm, MUX); /* scales with voltage and process_id */
> +PERIPH_CLK(disp1, "tegra-dc.0", NULL, 27, 0x138, 600000000, mux_pllp_plld_pllc_clkm, MUX); /* scales with voltage and process_id */
> +PERIPH_CLK(disp2, "tegra-dc.1", NULL, 26, 0x13c, 600000000, mux_pllp_plld_pllc_clkm, MUX); /* scales with voltage and process_id */
> PERIPH_CLK(usbd, "fsl-tegra-udc", NULL, 22, 0, 480000000, mux_clk_m, 0); /* requires min voltage */
> PERIPH_CLK(usb2, "tegra-ehci.1", NULL, 58, 0, 480000000, mux_clk_m, 0); /* requires min voltage */
> PERIPH_CLK(usb3, "tegra-ehci.2", NULL, 59, 0, 480000000, mux_clk_m, 0); /* requires min voltage */
> -PERIPH_CLK(dsi, "dsi", NULL, 48, 0, 500000000, mux_plld, 0); /* scales with voltage */
> +PERIPH_CLK(dsi, "tegra-dsi", NULL, 48, 0, 500000000, mux_plld, 0); /* scales with voltage */
> PERIPH_CLK(csi, "tegra_camera", "csi", 52, 0, 72000000, mux_pllp_out3, 0);
> PERIPH_CLK(isp, "tegra_camera", "isp", 23, 0, 150000000, mux_clk_m, 0); /* same frequency as VI */
> PERIPH_CLK(csus, "tegra_camera", "csus", 92, 0, 150000000, mux_clk_m, PERIPH_NO_RESET);
> @@ -1036,9 +1041,6 @@ static struct clk_duplicate tegra_clk_duplicates[] = {
> CLK_DUPLICATE("usbd", "utmip-pad", NULL),
> CLK_DUPLICATE("usbd", "tegra-ehci.0", NULL),
> CLK_DUPLICATE("usbd", "tegra-otg", NULL),
> - CLK_DUPLICATE("hdmi", "tegradc.0", "hdmi"),
> - CLK_DUPLICATE("hdmi", "tegradc.1", "hdmi"),
> - CLK_DUPLICATE("host1x", "tegra_grhost", "host1x"),
> CLK_DUPLICATE("2d", "tegra_grhost", "gr2d"),
> CLK_DUPLICATE("3d", "tegra_grhost", "gr3d"),
> CLK_DUPLICATE("epp", "tegra_grhost", "epp"),
> @@ -1051,6 +1053,9 @@ static struct clk_duplicate tegra_clk_duplicates[] = {
> CLK_DUPLICATE("pll_p_out3", "tegra-i2c.1", "fast-clk"),
> CLK_DUPLICATE("pll_p_out3", "tegra-i2c.2", "fast-clk"),
> CLK_DUPLICATE("pll_p_out3", "tegra-i2c.3", "fast-clk"),
> + CLK_DUPLICATE("pll_p", "tegra-dc.0", "parent"),
> + CLK_DUPLICATE("pll_p", "tegra-dc.1", "parent"),
> + CLK_DUPLICATE("pll_d_out0", "tegra-hdmi", "parent"),
> };
>
> #define CLK(dev, con, ck) \
> --
> 1.8.0
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-tegra" in
> the body of a message to majordomo@...r.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
>
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists