Hi Chanwoo,
On Tuesday 02 December 2014 02:19 PM, Chanwoo Choi wrote:
This patch adds the mux/divider/gate clocks for CMU_BUS{0|1|2} domains
which contain global data buses clocked at up the 400MHz. These blocks
transfer data between DRAM and various sub-blocks. These clock domains
also contain global peripheral buses clocked at 67/111/200/222/266/333/400
MHz and used for regiser accesses.
typo: %s/regiser/register
Cc: Sylwester Nawrocki <s.nawrocki@xxxxxxxxxxx>
Cc: Tomasz Figa <tomasz.figa@xxxxxxxxx>
Cc: Arnd Bergmann <arnd@xxxxxxxx>
Signed-off-by: Chanwoo Choi <cw00.choi@xxxxxxxxxxx>
Acked-by: Inki Dae <inki.dae@xxxxxxxxxxx>
Acked-by: Geunsik Lim <geunsik.lim@xxxxxxxxxxx>
---
.../devicetree/bindings/clock/exynos5433-clock.txt | 21 +++
drivers/clk/samsung/clk-exynos5433.c | 185 ++++++++++++++++++++-
include/dt-bindings/clock/exynos5433.h | 29 +++-
3 files changed, 232 insertions(+), 3 deletions(-)
diff --git a/Documentation/devicetree/bindings/clock/exynos5433-clock.txt b/Documentation/devicetree/bindings/clock/exynos5433-clock.txt
index 9a6ae75..03ae40a 100644
--- a/Documentation/devicetree/bindings/clock/exynos5433-clock.txt
+++ b/Documentation/devicetree/bindings/clock/exynos5433-clock.txt
@@ -25,6 +25,9 @@ Required Properties:
which generates clocks for Display (DECON/HDMI/DSIM/MIXER) IPs.
- "samsung,exynos5433-cmu-aud" - clock controller compatible for CMU_AUD
which generates clocks for Cortex-A5/BUS/AUDIO clocks.
+ - "samsung,exynos5433-cmu-bus0", "samsung,exynos5433-cmu-bus1"
+ and "samsung,exynos5433-cmu-bus2" - clock controller compatible for CMU_BUS
+ which generates global data buses clock and global peripheral buses clock.
- reg: physical base address of the controller and length of memory mapped
region.
@@ -94,6 +97,24 @@ Example 1: Examples of clock controller nodes are listed below.
#clock-cells = <1>;
};
+ cmu_bus0: clock-controller@0x13600000 {
+ compatible = "samsung,exynos5433-cmu-bus0";
+ reg = <0x13600000 0x0b04>;
+ #clock-cells = <1>;
+ };
+
+ cmu_bus1: clock-controller@0x14800000 {
+ compatible = "samsung,exynos5433-cmu-bus1";
+ reg = <0x14800000 0x0b04>;
+ #clock-cells = <1>;
+ };
+
+ cmu_bus2: clock-controller@0x13400000 {
+ compatible = "samsung,exynos5433-cmu-bus2";
+ reg = <0x13400000 0x0b04>;
+ #clock-cells = <1>;
+ };
+
Example 2: UART controller node that consumes the clock generated by the clock
controller.
diff --git a/drivers/clk/samsung/clk-exynos5433.c b/drivers/clk/samsung/clk-exynos5433.c
index 99262e0..5b4ec83 100644
--- a/drivers/clk/samsung/clk-exynos5433.c
+++ b/drivers/clk/samsung/clk-exynos5433.c
@@ -425,7 +425,7 @@ static struct samsung_div_clock top_div_clks[] __initdata = {
DIV_TOP2, 0, 3),
/* DIV_TOP3 */
- DIV(CLK_DIV_ACLK_IMEM_SSSX, "div_aclk_imem_sssx",
+ DIV(CLK_DIV_ACLK_IMEM_SSSX_266, "div_aclk_imem_sssx_266",
This change can be moved to patch 1/19 itself.
"mout_bus_pll_user", DIV_TOP3, 24, 3),
DIV(CLK_DIV_ACLK_IMEM_200, "div_aclk_imem_200",
"mout_bus_pll_user", DIV_TOP3, 20, 3),
@@ -440,6 +440,14 @@ static struct samsung_div_clock top_div_clks[] __initdata = {
DIV(CLK_DIV_ACLK_PERIS_66_A, "div_aclk_peris_66_a",
"mout_bus_pll_user", DIV_TOP3, 0, 3),
+ /* DIV_TOP4 */
+ DIV(CLK_DIV_ACLK_G3D_400, "div_aclk_g3d_400", "mout_bus_pll_user",
+ DIV_TOP4, 8, 3),
+ DIV(CLK_DIV_ACLK_BUS0_400, "div_aclk_bus0_400", "mout_aclk_bus0_400",
+ DIV_TOP4, 4, 3),
+ DIV(CLK_DIV_ACLK_BUS1_400, "div_aclk_bus1_400", "mout_bus_pll_user",
+ DIV_TOP4, 0, 3),
+
With these changes you can have:
Reviewed-by: Pankaj Dubey <pankaj.dubey@xxxxxxxxxxx>
Thanks,
Pankaj Dubey
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