linux-mips
[Top] [All Lists]

[PATCH 5/7] clk: pistachio: Register peripheral clocks

To: Mike Turquette <mturquette@linaro.org>, Stephen Boyd <sboyd@codeaurora.org>, Ralf Baechle <ralf@linux-mips.org>
Subject: [PATCH 5/7] clk: pistachio: Register peripheral clocks
From: Andrew Bresticker <abrestic@chromium.org>
Date: Tue, 24 Feb 2015 19:56:05 -0800
Cc: devicetree@vger.kernel.org, linux-mips@linux-mips.org, linux-kernel@vger.kernel.org, Andrew Bresticker <abrestic@chromium.org>, Ezequiel Garcia <ezequiel.garcia@imgtec.com>, James Hartley <james.hartley@imgtec.com>, James Hogan <james.hogan@imgtec.com>, Damien Horsley <Damien.Horsley@imgtec.com>
In-reply-to: <1424836567-7252-1-git-send-email-abrestic@chromium.org>
List-archive: <http://www.linux-mips.org/archives/linux-mips/>
List-help: <mailto:ecartis@linux-mips.org?Subject=help>
List-id: linux-mips <linux-mips.eddie.linux-mips.org>
List-owner: <mailto:ralf@linux-mips.org>
List-post: <mailto:linux-mips@linux-mips.org>
List-software: Ecartis version 1.0.0
List-subscribe: <mailto:ecartis@linux-mips.org?subject=subscribe%20linux-mips>
List-unsubscribe: <mailto:ecartis@linux-mips.org?subject=unsubscribe%20linux-mips>
Original-recipient: rfc822;linux-mips@linux-mips.org
References: <1424836567-7252-1-git-send-email-abrestic@chromium.org>
Sender: linux-mips-bounce@linux-mips.org
Register the clocks generated by the peripheral clock controller.
This includes the clocks for several peripherals, including I2C,
PWM, watchdog, and timer.

Signed-off-by: Damien Horsley <Damien.Horsley@imgtec.com>
Signed-off-by: Andrew Bresticker <abrestic@chromium.org>
---
 drivers/clk/pistachio/clk-pistachio.c | 67 +++++++++++++++++++++++++++++++++++
 1 file changed, 67 insertions(+)

diff --git a/drivers/clk/pistachio/clk-pistachio.c 
b/drivers/clk/pistachio/clk-pistachio.c
index 12a45e2..0eabb54 100644
--- a/drivers/clk/pistachio/clk-pistachio.c
+++ b/drivers/clk/pistachio/clk-pistachio.c
@@ -197,3 +197,70 @@ static void __init pistachio_clk_init(struct device_node 
*np)
                                   ARRAY_SIZE(pistachio_critical_clks));
 }
 CLK_OF_DECLARE(pistachio_clk, "img,pistachio-clk", pistachio_clk_init);
+
+static struct pistachio_gate pistachio_periph_gates[] __initdata = {
+       GATE(PERIPH_CLK_SYS, "sys", "periph_sys", 0x100, 0),
+       GATE(PERIPH_CLK_SYS_BUS, "bus_sys", "periph_sys", 0x100, 1),
+       GATE(PERIPH_CLK_DDR, "ddr", "periph_sys", 0x100, 2),
+       GATE(PERIPH_CLK_ROM, "rom", "rom_div", 0x100, 3),
+       GATE(PERIPH_CLK_COUNTER_FAST, "counter_fast", "counter_fast_div",
+            0x100, 4),
+       GATE(PERIPH_CLK_COUNTER_SLOW, "counter_slow", "counter_slow_div",
+            0x100, 5),
+       GATE(PERIPH_CLK_IR, "ir", "ir_div", 0x100, 6),
+       GATE(PERIPH_CLK_WD, "wd", "wd_div", 0x100, 7),
+       GATE(PERIPH_CLK_PDM, "pdm", "pdm_div", 0x100, 8),
+       GATE(PERIPH_CLK_PWM, "pwm", "pwm_div", 0x100, 9),
+       GATE(PERIPH_CLK_I2C0, "i2c0", "i2c0_div", 0x100, 10),
+       GATE(PERIPH_CLK_I2C1, "i2c1", "i2c1_div", 0x100, 11),
+       GATE(PERIPH_CLK_I2C2, "i2c2", "i2c2_div", 0x100, 12),
+       GATE(PERIPH_CLK_I2C3, "i2c3", "i2c3_div", 0x100, 13),
+};
+
+static struct pistachio_div pistachio_periph_divs[] __initdata = {
+       DIV(PERIPH_CLK_ROM_DIV, "rom_div", "periph_sys", 0x10c, 7),
+       DIV(PERIPH_CLK_COUNTER_FAST_DIV, "counter_fast_div", "periph_sys",
+           0x110, 7),
+       DIV(PERIPH_CLK_COUNTER_SLOW_PRE_DIV, "counter_slow_pre_div",
+           "periph_sys", 0x114, 7),
+       DIV(PERIPH_CLK_COUNTER_SLOW_DIV, "counter_slow_div",
+           "counter_slow_pre_div", 0x118, 7),
+       DIV_F(PERIPH_CLK_IR_PRE_DIV, "ir_pre_div", "periph_sys", 0x11c, 7,
+             CLK_DIVIDER_ROUND_CLOSEST),
+       DIV_F(PERIPH_CLK_IR_DIV, "ir_div", "ir_pre_div", 0x120, 7,
+             CLK_DIVIDER_ROUND_CLOSEST),
+       DIV_F(PERIPH_CLK_WD_PRE_DIV, "wd_pre_div", "periph_sys", 0x124, 7,
+             CLK_DIVIDER_ROUND_CLOSEST),
+       DIV_F(PERIPH_CLK_WD_DIV, "wd_div", "wd_pre_div", 0x128, 7,
+             CLK_DIVIDER_ROUND_CLOSEST),
+       DIV(PERIPH_CLK_PDM_PRE_DIV, "pdm_pre_div", "periph_sys", 0x12c, 7),
+       DIV(PERIPH_CLK_PDM_DIV, "pdm_div", "pdm_pre_div", 0x130, 7),
+       DIV(PERIPH_CLK_PWM_PRE_DIV, "pwm_pre_div", "periph_sys", 0x134, 7),
+       DIV(PERIPH_CLK_PWM_DIV, "pwm_div", "pwm_pre_div", 0x138, 7),
+       DIV(PERIPH_CLK_I2C0_PRE_DIV, "i2c0_pre_div", "periph_sys", 0x13c, 7),
+       DIV(PERIPH_CLK_I2C0_DIV, "i2c0_div", "i2c0_pre_div", 0x140, 7),
+       DIV(PERIPH_CLK_I2C1_PRE_DIV, "i2c1_pre_div", "periph_sys", 0x144, 7),
+       DIV(PERIPH_CLK_I2C1_DIV, "i2c1_div", "i2c1_pre_div", 0x148, 7),
+       DIV(PERIPH_CLK_I2C2_PRE_DIV, "i2c2_pre_div", "periph_sys", 0x14c, 7),
+       DIV(PERIPH_CLK_I2C2_DIV, "i2c2_div", "i2c2_pre_div", 0x150, 7),
+       DIV(PERIPH_CLK_I2C3_PRE_DIV, "i2c3_pre_div", "periph_sys", 0x154, 7),
+       DIV(PERIPH_CLK_I2C3_DIV, "i2c3_div", "i2c3_pre_div", 0x158, 7),
+};
+
+static void __init pistachio_clk_periph_init(struct device_node *np)
+{
+       struct pistachio_clk_provider *p;
+
+       p = pistachio_clk_alloc_provider(np, PERIPH_CLK_NR_CLKS);
+       if (!p)
+               return;
+
+       pistachio_clk_register_div(p, pistachio_periph_divs,
+                                  ARRAY_SIZE(pistachio_periph_divs));
+       pistachio_clk_register_gate(p, pistachio_periph_gates,
+                                   ARRAY_SIZE(pistachio_periph_gates));
+
+       pistachio_clk_register_provider(p);
+}
+CLK_OF_DECLARE(pistachio_clk_periph, "img,pistachio-clk-periph",
+              pistachio_clk_periph_init);
-- 
2.2.0.rc0.207.ga3a616c


<Prev in Thread] Current Thread [Next in Thread>