2b1c6b21b5
As usual these patches were extracted and rebased from the raspberry pi repo: https://github.com/raspberrypi/linux/tree/rpi-4.4.y Also adds support for Raspberry Pi Compute Module 3 (untested). Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
184 lines
5 KiB
Diff
184 lines
5 KiB
Diff
From 3f26e43abb4c245d41dfbed03d82c3bc36044b04 Mon Sep 17 00:00:00 2001
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From: Martin Sperl <kernel@martin.sperl.org>
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Date: Mon, 29 Feb 2016 15:43:57 +0000
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Subject: [PATCH] clk: bcm2835: add missing osc and per clocks
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Add AVE0, DFT, GP0, GP1, GP2, SLIM, SMI, TEC, DPI, CAM0, CAM1, DSI0E,
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and DSI1E. PULSE is not added because it has an extra divider.
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Signed-off-by: Martin Sperl <kernel@martin.sperl.org>
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Signed-off-by: Eric Anholt <eric@anholt.net>
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Reviewed-by: Eric Anholt <eric@anholt.net>
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(cherry picked from commit d3d6f15fd376e3dbba851724057b112558c70b79)
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---
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drivers/clk/bcm/clk-bcm2835.c | 90 +++++++++++++++++++++++++++++++++++++
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include/dt-bindings/clock/bcm2835.h | 14 ++++++
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2 files changed, 104 insertions(+)
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--- a/drivers/clk/bcm/clk-bcm2835.c
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+++ b/drivers/clk/bcm/clk-bcm2835.c
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@@ -117,6 +117,8 @@
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#define CM_SDCCTL 0x1a8
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#define CM_SDCDIV 0x1ac
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#define CM_ARMCTL 0x1b0
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+#define CM_AVEOCTL 0x1b8
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+#define CM_AVEODIV 0x1bc
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#define CM_EMMCCTL 0x1c0
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#define CM_EMMCDIV 0x1c4
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@@ -1610,6 +1612,12 @@ static const struct bcm2835_clk_desc clk
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.div_reg = CM_TSENSDIV,
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.int_bits = 5,
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.frac_bits = 0),
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+ [BCM2835_CLOCK_TEC] = REGISTER_OSC_CLK(
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+ .name = "tec",
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+ .ctl_reg = CM_TECCTL,
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+ .div_reg = CM_TECDIV,
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+ .int_bits = 6,
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+ .frac_bits = 0),
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/* clocks with vpu parent mux */
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[BCM2835_CLOCK_H264] = REGISTER_VPU_CLK(
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@@ -1624,6 +1632,7 @@ static const struct bcm2835_clk_desc clk
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.div_reg = CM_ISPDIV,
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.int_bits = 4,
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.frac_bits = 8),
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+
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/*
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* Secondary SDRAM clock. Used for low-voltage modes when the PLL
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* in the SDRAM controller can't be used.
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@@ -1655,6 +1664,36 @@ static const struct bcm2835_clk_desc clk
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.is_vpu_clock = true),
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/* clocks with per parent mux */
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+ [BCM2835_CLOCK_AVEO] = REGISTER_PER_CLK(
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+ .name = "aveo",
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+ .ctl_reg = CM_AVEOCTL,
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+ .div_reg = CM_AVEODIV,
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+ .int_bits = 4,
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+ .frac_bits = 0),
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+ [BCM2835_CLOCK_CAM0] = REGISTER_PER_CLK(
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+ .name = "cam0",
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+ .ctl_reg = CM_CAM0CTL,
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+ .div_reg = CM_CAM0DIV,
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+ .int_bits = 4,
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+ .frac_bits = 8),
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+ [BCM2835_CLOCK_CAM1] = REGISTER_PER_CLK(
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+ .name = "cam1",
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+ .ctl_reg = CM_CAM1CTL,
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+ .div_reg = CM_CAM1DIV,
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+ .int_bits = 4,
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+ .frac_bits = 8),
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+ [BCM2835_CLOCK_DFT] = REGISTER_PER_CLK(
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+ .name = "dft",
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+ .ctl_reg = CM_DFTCTL,
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+ .div_reg = CM_DFTDIV,
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+ .int_bits = 5,
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+ .frac_bits = 0),
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+ [BCM2835_CLOCK_DPI] = REGISTER_PER_CLK(
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+ .name = "dpi",
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+ .ctl_reg = CM_DPICTL,
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+ .div_reg = CM_DPIDIV,
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+ .int_bits = 4,
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+ .frac_bits = 8),
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/* Arasan EMMC clock */
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[BCM2835_CLOCK_EMMC] = REGISTER_PER_CLK(
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@@ -1663,6 +1702,29 @@ static const struct bcm2835_clk_desc clk
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.div_reg = CM_EMMCDIV,
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.int_bits = 4,
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.frac_bits = 8),
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+
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+ /* General purpose (GPIO) clocks */
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+ [BCM2835_CLOCK_GP0] = REGISTER_PER_CLK(
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+ .name = "gp0",
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+ .ctl_reg = CM_GP0CTL,
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+ .div_reg = CM_GP0DIV,
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+ .int_bits = 12,
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+ .frac_bits = 12,
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+ .is_mash_clock = true),
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+ [BCM2835_CLOCK_GP1] = REGISTER_PER_CLK(
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+ .name = "gp1",
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+ .ctl_reg = CM_GP1CTL,
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+ .div_reg = CM_GP1DIV,
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+ .int_bits = 12,
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+ .frac_bits = 12,
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+ .is_mash_clock = true),
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+ [BCM2835_CLOCK_GP2] = REGISTER_PER_CLK(
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+ .name = "gp2",
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+ .ctl_reg = CM_GP2CTL,
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+ .div_reg = CM_GP2DIV,
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+ .int_bits = 12,
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+ .frac_bits = 12),
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+
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/* HDMI state machine */
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[BCM2835_CLOCK_HSM] = REGISTER_PER_CLK(
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.name = "hsm",
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@@ -1684,12 +1746,26 @@ static const struct bcm2835_clk_desc clk
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.int_bits = 12,
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.frac_bits = 12,
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.is_mash_clock = true),
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+ [BCM2835_CLOCK_SLIM] = REGISTER_PER_CLK(
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+ .name = "slim",
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+ .ctl_reg = CM_SLIMCTL,
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+ .div_reg = CM_SLIMDIV,
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+ .int_bits = 12,
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+ .frac_bits = 12,
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+ .is_mash_clock = true),
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+ [BCM2835_CLOCK_SMI] = REGISTER_PER_CLK(
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+ .name = "smi",
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+ .ctl_reg = CM_SMICTL,
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+ .div_reg = CM_SMIDIV,
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+ .int_bits = 4,
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+ .frac_bits = 8),
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[BCM2835_CLOCK_UART] = REGISTER_PER_CLK(
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.name = "uart",
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.ctl_reg = CM_UARTCTL,
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.div_reg = CM_UARTDIV,
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.int_bits = 10,
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.frac_bits = 12),
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+
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/* TV encoder clock. Only operating frequency is 108Mhz. */
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[BCM2835_CLOCK_VEC] = REGISTER_PER_CLK(
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.name = "vec",
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@@ -1698,6 +1774,20 @@ static const struct bcm2835_clk_desc clk
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.int_bits = 4,
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.frac_bits = 0),
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+ /* dsi clocks */
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+ [BCM2835_CLOCK_DSI0E] = REGISTER_PER_CLK(
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+ .name = "dsi0e",
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+ .ctl_reg = CM_DSI0ECTL,
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+ .div_reg = CM_DSI0EDIV,
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+ .int_bits = 4,
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+ .frac_bits = 8),
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+ [BCM2835_CLOCK_DSI1E] = REGISTER_PER_CLK(
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+ .name = "dsi1e",
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+ .ctl_reg = CM_DSI1ECTL,
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+ .div_reg = CM_DSI1EDIV,
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+ .int_bits = 4,
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+ .frac_bits = 8),
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+
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/* the gates */
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/*
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--- a/include/dt-bindings/clock/bcm2835.h
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+++ b/include/dt-bindings/clock/bcm2835.h
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@@ -50,3 +50,17 @@
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#define BCM2835_PLLA_CCP2 33
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#define BCM2835_PLLD_DSI0 34
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#define BCM2835_PLLD_DSI1 35
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+
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+#define BCM2835_CLOCK_AVEO 36
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+#define BCM2835_CLOCK_DFT 37
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+#define BCM2835_CLOCK_GP0 38
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+#define BCM2835_CLOCK_GP1 39
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+#define BCM2835_CLOCK_GP2 40
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+#define BCM2835_CLOCK_SLIM 41
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+#define BCM2835_CLOCK_SMI 42
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+#define BCM2835_CLOCK_TEC 43
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+#define BCM2835_CLOCK_DPI 44
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+#define BCM2835_CLOCK_CAM0 45
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+#define BCM2835_CLOCK_CAM1 46
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+#define BCM2835_CLOCK_DSI0E 47
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+#define BCM2835_CLOCK_DSI1E 48
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