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path: root/drivers/clk/mvebu/cp110-system-controller.c
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Diffstat (limited to 'drivers/clk/mvebu/cp110-system-controller.c')
-rw-r--r--drivers/clk/mvebu/cp110-system-controller.c94
1 files changed, 39 insertions, 55 deletions
diff --git a/drivers/clk/mvebu/cp110-system-controller.c b/drivers/clk/mvebu/cp110-system-controller.c
index ca9a0a536174..75bf7b8f282f 100644
--- a/drivers/clk/mvebu/cp110-system-controller.c
+++ b/drivers/clk/mvebu/cp110-system-controller.c
@@ -13,18 +13,17 @@
/*
* CP110 has 6 core clocks:
*
- * - APLL (1 Ghz)
- * - PPv2 core (1/3 APLL)
- * - EIP (1/2 APLL)
- * - Core (1/2 EIP)
- * - SDIO (2/5 APLL)
+ * - PLL0 (1 Ghz)
+ * - PPv2 core (1/3 PLL0)
+ * - x2 Core (1/2 PLL0)
+ * - Core (1/2 x2 Core)
+ * - SDIO (2/5 PLL0)
*
* - NAND clock, which is either:
* - Equal to SDIO clock
- * - 2/5 APLL
+ * - 2/5 PLL0
*
- * CP110 has 32 gatable clocks, for the various peripherals in the
- * IP. They have fairly complicated parent/child relationships.
+ * CP110 has 32 gatable clocks, for the various peripherals in the IP.
*/
#define pr_fmt(fmt) "cp110-system-controller: " fmt
@@ -53,9 +52,9 @@ enum {
#define CP110_CLK_NUM \
(CP110_MAX_CORE_CLOCKS + CP110_MAX_GATABLE_CLOCKS)
-#define CP110_CORE_APLL 0
+#define CP110_CORE_PLL0 0
#define CP110_CORE_PPV2 1
-#define CP110_CORE_EIP 2
+#define CP110_CORE_X2CORE 2
#define CP110_CORE_CORE 3
#define CP110_CORE_NAND 4
#define CP110_CORE_SDIO 5
@@ -237,7 +236,7 @@ static int cp110_syscon_common_probe(struct platform_device *pdev,
struct regmap *regmap;
struct device *dev = &pdev->dev;
struct device_node *np = dev->of_node;
- const char *ppv2_name, *apll_name, *core_name, *eip_name, *nand_name,
+ const char *ppv2_name, *pll0_name, *core_name, *x2core_name, *nand_name,
*sdio_name;
struct clk_hw_onecell_data *cp110_clk_data;
struct clk_hw *hw, **cp110_clks;
@@ -263,20 +262,20 @@ static int cp110_syscon_common_probe(struct platform_device *pdev,
cp110_clks = cp110_clk_data->hws;
cp110_clk_data->num = CP110_CLK_NUM;
- /* Register the APLL which is the root of the hw tree */
- apll_name = cp110_unique_name(dev, syscon_node, "apll");
- hw = clk_hw_register_fixed_rate(NULL, apll_name, NULL, 0,
+ /* Register the PLL0 which is the root of the hw tree */
+ pll0_name = cp110_unique_name(dev, syscon_node, "pll0");
+ hw = clk_hw_register_fixed_rate(NULL, pll0_name, NULL, 0,
1000 * 1000 * 1000);
if (IS_ERR(hw)) {
ret = PTR_ERR(hw);
- goto fail_apll;
+ goto fail_pll0;
}
- cp110_clks[CP110_CORE_APLL] = hw;
+ cp110_clks[CP110_CORE_PLL0] = hw;
- /* PPv2 is APLL/3 */
+ /* PPv2 is PLL0/3 */
ppv2_name = cp110_unique_name(dev, syscon_node, "ppv2-core");
- hw = clk_hw_register_fixed_factor(NULL, ppv2_name, apll_name, 0, 1, 3);
+ hw = clk_hw_register_fixed_factor(NULL, ppv2_name, pll0_name, 0, 1, 3);
if (IS_ERR(hw)) {
ret = PTR_ERR(hw);
goto fail_ppv2;
@@ -284,30 +283,32 @@ static int cp110_syscon_common_probe(struct platform_device *pdev,
cp110_clks[CP110_CORE_PPV2] = hw;
- /* EIP clock is APLL/2 */
- eip_name = cp110_unique_name(dev, syscon_node, "eip");
- hw = clk_hw_register_fixed_factor(NULL, eip_name, apll_name, 0, 1, 2);
+ /* X2CORE clock is PLL0/2 */
+ x2core_name = cp110_unique_name(dev, syscon_node, "x2core");
+ hw = clk_hw_register_fixed_factor(NULL, x2core_name, pll0_name,
+ 0, 1, 2);
if (IS_ERR(hw)) {
ret = PTR_ERR(hw);
goto fail_eip;
}
- cp110_clks[CP110_CORE_EIP] = hw;
+ cp110_clks[CP110_CORE_X2CORE] = hw;
- /* Core clock is EIP/2 */
+ /* Core clock is X2CORE/2 */
core_name = cp110_unique_name(dev, syscon_node, "core");
- hw = clk_hw_register_fixed_factor(NULL, core_name, eip_name, 0, 1, 2);
+ hw = clk_hw_register_fixed_factor(NULL, core_name, x2core_name,
+ 0, 1, 2);
if (IS_ERR(hw)) {
ret = PTR_ERR(hw);
goto fail_core;
}
cp110_clks[CP110_CORE_CORE] = hw;
- /* NAND can be either APLL/2.5 or core clock */
+ /* NAND can be either PLL0/2.5 or core clock */
nand_name = cp110_unique_name(dev, syscon_node, "nand-core");
if (nand_clk_ctrl & NF_CLOCK_SEL_400_MASK)
hw = clk_hw_register_fixed_factor(NULL, nand_name,
- apll_name, 0, 2, 5);
+ pll0_name, 0, 2, 5);
else
hw = clk_hw_register_fixed_factor(NULL, nand_name,
core_name, 0, 1, 1);
@@ -318,10 +319,10 @@ static int cp110_syscon_common_probe(struct platform_device *pdev,
cp110_clks[CP110_CORE_NAND] = hw;
- /* SDIO clock is APLL/2.5 */
+ /* SDIO clock is PLL0/2.5 */
sdio_name = cp110_unique_name(dev, syscon_node, "sdio-core");
hw = clk_hw_register_fixed_factor(NULL, sdio_name,
- apll_name, 0, 2, 5);
+ pll0_name, 0, 2, 5);
if (IS_ERR(hw)) {
ret = PTR_ERR(hw);
goto fail_sdio;
@@ -341,40 +342,23 @@ static int cp110_syscon_common_probe(struct platform_device *pdev,
continue;
switch (i) {
- case CP110_GATE_AUDIO:
- case CP110_GATE_COMM_UNIT:
- case CP110_GATE_EIP150:
- case CP110_GATE_EIP197:
- case CP110_GATE_SLOW_IO:
- parent = gate_name[CP110_GATE_MAIN];
- break;
- case CP110_GATE_MG:
- parent = gate_name[CP110_GATE_MG_CORE];
- break;
case CP110_GATE_NAND:
parent = nand_name;
break;
+ case CP110_GATE_MG:
+ case CP110_GATE_GOP_DP:
case CP110_GATE_PPV2:
parent = ppv2_name;
break;
case CP110_GATE_SDIO:
parent = sdio_name;
break;
- case CP110_GATE_GOP_DP:
- parent = gate_name[CP110_GATE_SDMMC_GOP];
- break;
- case CP110_GATE_XOR1:
- case CP110_GATE_XOR0:
- case CP110_GATE_PCIE_X1_0:
- case CP110_GATE_PCIE_X1_1:
+ case CP110_GATE_MAIN:
+ case CP110_GATE_PCIE_XOR:
case CP110_GATE_PCIE_X4:
- parent = gate_name[CP110_GATE_PCIE_XOR];
- break;
- case CP110_GATE_SATA:
- case CP110_GATE_USB3H0:
- case CP110_GATE_USB3H1:
- case CP110_GATE_USB3DEV:
- parent = gate_name[CP110_GATE_SATA_USB];
+ case CP110_GATE_EIP150:
+ case CP110_GATE_EIP197:
+ parent = x2core_name;
break;
default:
parent = core_name;
@@ -413,12 +397,12 @@ fail_sdio:
fail_nand:
clk_hw_unregister_fixed_factor(cp110_clks[CP110_CORE_CORE]);
fail_core:
- clk_hw_unregister_fixed_factor(cp110_clks[CP110_CORE_EIP]);
+ clk_hw_unregister_fixed_factor(cp110_clks[CP110_CORE_X2CORE]);
fail_eip:
clk_hw_unregister_fixed_factor(cp110_clks[CP110_CORE_PPV2]);
fail_ppv2:
- clk_hw_unregister_fixed_rate(cp110_clks[CP110_CORE_APLL]);
-fail_apll:
+ clk_hw_unregister_fixed_rate(cp110_clks[CP110_CORE_PLL0]);
+fail_pll0:
return ret;
}
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-18 20:16:27 +0300