Hi Chanwoo,
On Tuesday 02 December 2014 02:19 PM, Chanwoo Choi wrote:
This patch adds the support for CMU (Clock Management Units) of Exynos5433
which is 64bit SoC and has Octa-cores. This patch supports necessary clocks
(PLL/MMC/UART/MCT/I2C/SPI) for kernel boot and includes binding documentation
for Exynos5433 clock controller.
Cc: Sylwester Nawrocki <s.nawrocki@xxxxxxxxxxx>
Cc: Tomasz Figa <tomasz.figa@xxxxxxxxx>
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 | 106 +++
drivers/clk/samsung/Makefile | 1 +
drivers/clk/samsung/clk-exynos5433.c | 967 +++++++++++++++++++++
include/dt-bindings/clock/exynos5433.h | 199 +++++
4 files changed, 1273 insertions(+)
create mode 100644 Documentation/devicetree/bindings/clock/exynos5433-clock.txt
create mode 100644 drivers/clk/samsung/clk-exynos5433.c
create mode 100644 include/dt-bindings/clock/exynos5433.h
[snip]
+
+static struct samsung_div_clock top_div_clks[] __initdata = {
+ /* DIV_TOP2 */
+ DIV(CLK_DIV_ACLK_FSYS_200, "div_aclk_fsys_200", "mout_bus_pll_user",
+ DIV_TOP2, 0, 3),
+
+ /* DIV_TOP3 */
+ DIV(CLK_DIV_ACLK_IMEM_SSSX, "div_aclk_imem_sssx",
As per UM, this clock name should be imem_sssx_266
+ "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),
+ DIV(CLK_DIV_ACLK_IMEM_266, "div_aclk_imem_266",
+ "mout_bus_pll_user", DIV_TOP3, 16, 3),
+ DIV(CLK_DIV_ACLK_PERIC_66_B, "div_aclk_peric_66_b",
+ "div_aclk_peric_66_a", DIV_TOP3, 12, 3),
+ DIV(CLK_DIV_ACLK_PERIC_66_A, "div_aclk_peric_66_a",
+ "mout_bus_pll_user", DIV_TOP3, 8, 3),
+ DIV(CLK_DIV_ACLK_PERIS_66_B, "div_aclk_peris_66_b",
+ "div_aclk_peris_66_a", DIV_TOP3, 4, 3),
+ DIV(CLK_DIV_ACLK_PERIS_66_A, "div_aclk_peris_66_a",
[snip]
+
+static void __init exynos5433_cmu_mif_init(struct device_node *np)
+{
+ samsung_cmu_register_one(np, &mif_cmu_info);
+}
+CLK_OF_DECLARE(exynos5433_cmu_mif, "samsung,exynos5433-cmu-mif",
+ exynos5433_cmu_mif_init);
+
+/*
+ * Register offset definitions for CMU_PERIC
+ */
+#define DIV_PERIC 0x0600
+#define ENABLE_ACLK_PERIC 0x0800
+#define ENABLE_PCLK_PERIC0 0x0900
+#define ENABLE_PCLK_PERIC1 0x0904
+#define ENABLE_SCLK_PERIC 0x0A00
+#define ENABLE_IP_PERIC0 0x0B00
+#define ENABLE_IP_PERIC1 0x0B04
+#define ENABLE_IP_PERIC2 0x0B08
+
nit: Just for consistency, all these offset should be in small case.
+static unsigned long peric_clk_regs[] __initdata = {
+ DIV_PERIC,
+ ENABLE_ACLK_PERIC,
+ ENABLE_PCLK_PERIC0,
+ ENABLE_PCLK_PERIC1,
+ ENABLE_SCLK_PERIC,
+ ENABLE_IP_PERIC0,
+ ENABLE_IP_PERIC1,
+ ENABLE_IP_PERIC2,
+};
+
[snip]
Thanks,
Pankaj Dubey
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