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authorAngelos Mouzakitis <a.mouzakitis@virtualopensystems.com>2023-10-10 14:33:42 +0000
committerAngelos Mouzakitis <a.mouzakitis@virtualopensystems.com>2023-10-10 14:33:42 +0000
commitaf1a266670d040d2f4083ff309d732d648afba2a (patch)
tree2fc46203448ddcc6f81546d379abfaeb323575e9 /roms/u-boot/arch/arm/mach-uniphier/clk/dpll-sld8.c
parente02cda008591317b1625707ff8e115a4841aa889 (diff)
Add submodule dependency filesHEADmaster
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
Diffstat (limited to 'roms/u-boot/arch/arm/mach-uniphier/clk/dpll-sld8.c')
-rw-r--r--roms/u-boot/arch/arm/mach-uniphier/clk/dpll-sld8.c61
1 files changed, 61 insertions, 0 deletions
diff --git a/roms/u-boot/arch/arm/mach-uniphier/clk/dpll-sld8.c b/roms/u-boot/arch/arm/mach-uniphier/clk/dpll-sld8.c
new file mode 100644
index 000000000..1ac52d11f
--- /dev/null
+++ b/roms/u-boot/arch/arm/mach-uniphier/clk/dpll-sld8.c
@@ -0,0 +1,61 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2013-2014 Panasonic Corporation
+ * Copyright (C) 2015-2016 Socionext Inc.
+ */
+
+#include <linux/delay.h>
+#include <linux/io.h>
+
+#include "../init.h"
+#include "../sc-regs.h"
+
+int uniphier_sld8_dpll_init(const struct uniphier_board_data *bd)
+{
+ u32 tmp;
+ /*
+ * Set DPLL SSC parameters for DPLLCTRL3
+ * [23] DIVN_TEST 0x1
+ * [22:16] DIVN 0x50
+ * [10] FREFSEL_TEST 0x1
+ * [9:8] FREFSEL 0x2
+ * [4] ICPD_TEST 0x1
+ * [3:0] ICPD 0xb
+ */
+ tmp = readl(sc_base + SC_DPLLCTRL3);
+ tmp &= ~0x00ff0717;
+ tmp |= 0x00d0061b;
+ writel(tmp, sc_base + SC_DPLLCTRL3);
+
+ /*
+ * Set DPLL SSC parameters for DPLLCTRL
+ * <-1%> <-2%>
+ * [29:20] SSC_UPCNT 132 (0x084) 132 (0x084)
+ * [14:0] SSC_dK 6335(0x18bf) 12710(0x31a6)
+ */
+ tmp = readl(sc_base + SC_DPLLCTRL);
+ tmp &= ~0x3ff07fff;
+#ifdef DPLL_SSC_RATE_1PER
+ tmp |= 0x084018bf;
+#else
+ tmp |= 0x084031a6;
+#endif
+ writel(tmp, sc_base + SC_DPLLCTRL);
+
+ /*
+ * Set DPLL SSC parameters for DPLLCTRL2
+ * [31:29] SSC_STEP 0
+ * [27] SSC_REG_REF 1
+ * [26:20] SSC_M 79 (0x4f)
+ * [19:0] SSC_K 964689 (0xeb851)
+ */
+ tmp = readl(sc_base + SC_DPLLCTRL2);
+ tmp &= ~0xefffffff;
+ tmp |= 0x0cfeb851;
+ writel(tmp, sc_base + SC_DPLLCTRL2);
+
+ /* Wait 500 usec until dpll gets stable */
+ udelay(500);
+
+ return 0;
+}