diff options
Diffstat (limited to 'arch/arm/mach-uniphier/ph1-sld8/pll_init.c')
| -rw-r--r-- | arch/arm/mach-uniphier/ph1-sld8/pll_init.c | 201 |
1 files changed, 0 insertions, 201 deletions
diff --git a/arch/arm/mach-uniphier/ph1-sld8/pll_init.c b/arch/arm/mach-uniphier/ph1-sld8/pll_init.c deleted file mode 100644 index 109cb5fee0..0000000000 --- a/arch/arm/mach-uniphier/ph1-sld8/pll_init.c +++ /dev/null @@ -1,201 +0,0 @@ -/* - * Copyright (C) 2011-2015 Masahiro Yamada <yamada.masahiro@socionext.com> - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <common.h> -#include <linux/io.h> -#include <mach/sc-regs.h> -#include <mach/sg-regs.h> - -static void dpll_init(void) -{ - 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_DPLLCTRL3); - tmp &= ~0x00ff0717; - tmp |= 0x00d0061b; - writel(tmp, 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_DPLLCTRL); - tmp &= ~0x3ff07fff; -#ifdef CONFIG_DPLL_SSC_RATE_1PER - tmp |= 0x084018bf; -#else - tmp |= 0x084031a6; -#endif - writel(tmp, 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_DPLLCTRL2); - tmp &= ~0xefffffff; - tmp |= 0x0cfeb851; - writel(tmp, SC_DPLLCTRL2); -} - -static void upll_init(void) -{ - u32 tmp, clk_mode_upll, clk_mode_axosel; - - tmp = readl(SG_PINMON0); - clk_mode_upll = tmp & SG_PINMON0_CLK_MODE_UPLLSRC_MASK; - clk_mode_axosel = tmp & SG_PINMON0_CLK_MODE_AXOSEL_MASK; - - /* set 0 to SNRT(UPLLCTRL.bit28) and K_LD(UPLLCTRL.bit[27]) */ - tmp = readl(SC_UPLLCTRL); - tmp &= ~0x18000000; - writel(tmp, SC_UPLLCTRL); - - if (clk_mode_upll == SG_PINMON0_CLK_MODE_UPLLSRC_DEFAULT) { - if (clk_mode_axosel == SG_PINMON0_CLK_MODE_AXOSEL_25000KHZ_U || - clk_mode_axosel == SG_PINMON0_CLK_MODE_AXOSEL_25000KHZ_A) { - /* AXO: 25MHz */ - tmp &= ~0x07ffffff; - tmp |= 0x0228f5c0; - } else { - /* AXO: default 24.576MHz */ - tmp &= ~0x07ffffff; - tmp |= 0x02328000; - } - } - - writel(tmp, SC_UPLLCTRL); - - /* set 1 to K_LD(UPLLCTRL.bit[27]) */ - tmp |= 0x08000000; - writel(tmp, SC_UPLLCTRL); - - /* wait 10 usec */ - udelay(10); - - /* set 1 to SNRT(UPLLCTRL.bit[28]) */ - tmp |= 0x10000000; - writel(tmp, SC_UPLLCTRL); -} - -static void vpll_init(void) -{ - u32 tmp, clk_mode_axosel; - - tmp = readl(SG_PINMON0); - clk_mode_axosel = tmp & SG_PINMON0_CLK_MODE_AXOSEL_MASK; - - /* set 1 to VPLA27WP and VPLA27WP */ - tmp = readl(SC_VPLL27ACTRL); - tmp |= 0x00000001; - writel(tmp, SC_VPLL27ACTRL); - tmp = readl(SC_VPLL27BCTRL); - tmp |= 0x00000001; - writel(tmp, SC_VPLL27BCTRL); - - /* Set 0 to VPLA_K_LD and VPLB_K_LD */ - tmp = readl(SC_VPLL27ACTRL3); - tmp &= ~0x10000000; - writel(tmp, SC_VPLL27ACTRL3); - tmp = readl(SC_VPLL27BCTRL3); - tmp &= ~0x10000000; - writel(tmp, SC_VPLL27BCTRL3); - - /* Set 0 to VPLA_SNRST and VPLB_SNRST */ - tmp = readl(SC_VPLL27ACTRL2); - tmp &= ~0x10000000; - writel(tmp, SC_VPLL27ACTRL2); - tmp = readl(SC_VPLL27BCTRL2); - tmp &= ~0x10000000; - writel(tmp, SC_VPLL27BCTRL2); - - /* Set 0x20 to VPLA_SNRST and VPLB_SNRST */ - tmp = readl(SC_VPLL27ACTRL2); - tmp &= ~0x0000007f; - tmp |= 0x00000020; - writel(tmp, SC_VPLL27ACTRL2); - tmp = readl(SC_VPLL27BCTRL2); - tmp &= ~0x0000007f; - tmp |= 0x00000020; - writel(tmp, SC_VPLL27BCTRL2); - - if (clk_mode_axosel == SG_PINMON0_CLK_MODE_AXOSEL_25000KHZ_U || - clk_mode_axosel == SG_PINMON0_CLK_MODE_AXOSEL_25000KHZ_A) { - /* AXO: 25MHz */ - tmp = readl(SC_VPLL27ACTRL3); - tmp &= ~0x000fffff; - tmp |= 0x00066664; - writel(tmp, SC_VPLL27ACTRL3); - tmp = readl(SC_VPLL27BCTRL3); - tmp &= ~0x000fffff; - tmp |= 0x00066664; - writel(tmp, SC_VPLL27BCTRL3); - } else { - /* AXO: default 24.576MHz */ - tmp = readl(SC_VPLL27ACTRL3); - tmp &= ~0x000fffff; - tmp |= 0x000f5800; - writel(tmp, SC_VPLL27ACTRL3); - tmp = readl(SC_VPLL27BCTRL3); - tmp &= ~0x000fffff; - tmp |= 0x000f5800; - writel(tmp, SC_VPLL27BCTRL3); - } - - /* Set 1 to VPLA_K_LD and VPLB_K_LD */ - tmp = readl(SC_VPLL27ACTRL3); - tmp |= 0x10000000; - writel(tmp, SC_VPLL27ACTRL3); - tmp = readl(SC_VPLL27BCTRL3); - tmp |= 0x10000000; - writel(tmp, SC_VPLL27BCTRL3); - - /* wait 10 usec */ - udelay(10); - - /* Set 0 to VPLA_SNRST and VPLB_SNRST */ - tmp = readl(SC_VPLL27ACTRL2); - tmp |= 0x10000000; - writel(tmp, SC_VPLL27ACTRL2); - tmp = readl(SC_VPLL27BCTRL2); - tmp |= 0x10000000; - writel(tmp, SC_VPLL27BCTRL2); - - /* set 0 to VPLA27WP and VPLA27WP */ - tmp = readl(SC_VPLL27ACTRL); - tmp &= ~0x00000001; - writel(tmp, SC_VPLL27ACTRL); - tmp = readl(SC_VPLL27BCTRL); - tmp |= ~0x00000001; - writel(tmp, SC_VPLL27BCTRL); -} - -void pll_init(void) -{ - dpll_init(); - upll_init(); - vpll_init(); - - /* - * Wait 500 usec until dpll get stable - * We wait 10 usec in upll_init() and vpll_init() - * so 20 usec can be saved here. - */ - udelay(480); -} |