aboutsummaryrefslogtreecommitdiffstats
path: root/roms/u-boot/arch/arm/mach-uniphier/clk/pll-ld20.c
diff options
context:
space:
mode:
Diffstat (limited to 'roms/u-boot/arch/arm/mach-uniphier/clk/pll-ld20.c')
-rw-r--r--roms/u-boot/arch/arm/mach-uniphier/clk/pll-ld20.c57
1 files changed, 57 insertions, 0 deletions
diff --git a/roms/u-boot/arch/arm/mach-uniphier/clk/pll-ld20.c b/roms/u-boot/arch/arm/mach-uniphier/clk/pll-ld20.c
new file mode 100644
index 000000000..04b3312a2
--- /dev/null
+++ b/roms/u-boot/arch/arm/mach-uniphier/clk/pll-ld20.c
@@ -0,0 +1,57 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2016 Socionext Inc.
+ * Author: Masahiro Yamada <yamada.masahiro@socionext.com>
+ */
+
+#include <linux/delay.h>
+
+#include "../init.h"
+#include "../sc64-regs.h"
+#include "pll.h"
+
+/* PLL type: SSC */
+#define SC_CPLLCTRL 0x1400 /* CPU/ARM */
+#define SC_SPLLCTRL 0x1410 /* misc */
+#define SC_SPLL2CTRL 0x1420 /* DSP */
+#define SC_MPLLCTRL 0x1430 /* Video codec */
+#define SC_VPPLLCTRL 0x1440 /* VPE etc. */
+#define SC_GPPLLCTRL 0x1450 /* GPU/Mali */
+#define SC_DPLL0CTRL 0x1460 /* DDR memory 0 */
+#define SC_DPLL1CTRL 0x1470 /* DDR memory 1 */
+#define SC_DPLL2CTRL 0x1480 /* DDR memory 2 */
+
+/* PLL type: VPLL27 */
+#define SC_VPLL27FCTRL 0x1500
+#define SC_VPLL27ACTRL 0x1520
+
+/* PLL type: DSPLL */
+#define SC_VPLL8KCTRL 0x1540
+#define SC_A2PLLCTRL 0x15C0
+
+void uniphier_ld20_pll_init(void)
+{
+ uniphier_ld20_sscpll_init(SC_CPLLCTRL, UNIPHIER_PLL_FREQ_DEFAULT, 0, 4);
+ /* do nothing for SPLL */
+ uniphier_ld20_sscpll_init(SC_SPLL2CTRL, UNIPHIER_PLL_FREQ_DEFAULT, 0, 4);
+ uniphier_ld20_sscpll_init(SC_MPLLCTRL, UNIPHIER_PLL_FREQ_DEFAULT, 0, 2);
+ uniphier_ld20_sscpll_init(SC_VPPLLCTRL, UNIPHIER_PLL_FREQ_DEFAULT, 0, 4);
+ uniphier_ld20_sscpll_init(SC_GPPLLCTRL, UNIPHIER_PLL_FREQ_DEFAULT, 0, 2);
+
+ mdelay(1);
+
+ uniphier_ld20_sscpll_ssc_en(SC_CPLLCTRL);
+ uniphier_ld20_sscpll_ssc_en(SC_SPLL2CTRL);
+ uniphier_ld20_sscpll_ssc_en(SC_MPLLCTRL);
+ uniphier_ld20_sscpll_ssc_en(SC_VPPLLCTRL);
+ uniphier_ld20_sscpll_ssc_en(SC_GPPLLCTRL);
+ uniphier_ld20_sscpll_ssc_en(SC_DPLL0CTRL);
+ uniphier_ld20_sscpll_ssc_en(SC_DPLL1CTRL);
+ uniphier_ld20_sscpll_ssc_en(SC_DPLL2CTRL);
+
+ uniphier_ld20_vpll27_init(SC_VPLL27FCTRL);
+ uniphier_ld20_vpll27_init(SC_VPLL27ACTRL);
+
+ uniphier_ld20_dspll_init(SC_VPLL8KCTRL);
+ uniphier_ld20_dspll_init(SC_A2PLLCTRL);
+}