summaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-tcc8k/clock.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/mach-tcc8k/clock.c')
-rw-r--r--arch/arm/mach-tcc8k/clock.c580
1 files changed, 0 insertions, 580 deletions
diff --git a/arch/arm/mach-tcc8k/clock.c b/arch/arm/mach-tcc8k/clock.c
deleted file mode 100644
index e7cdae5c77a4..000000000000
--- a/arch/arm/mach-tcc8k/clock.c
+++ /dev/null
@@ -1,580 +0,0 @@
-/*
- * Lowlevel clock handling for Telechips TCC8xxx SoCs
- *
- * Copyright (C) 2010 by Hans J. Koch <hjk@linutronix.de>
- *
- * Licensed under the terms of the GPL v2
- */
-
-#include <linux/clk.h>
-#include <linux/delay.h>
-#include <linux/err.h>
-#include <linux/io.h>
-#include <linux/module.h>
-#include <linux/spinlock.h>
-#include <linux/clkdev.h>
-
-#include <mach/clock.h>
-#include <mach/irqs.h>
-#include <mach/tcc8k-regs.h>
-
-#include "common.h"
-
-#define BCLKCTR0 (CKC_BASE + BCLKCTR0_OFFS)
-#define BCLKCTR1 (CKC_BASE + BCLKCTR1_OFFS)
-
-#define ACLKREF (CKC_BASE + ACLKREF_OFFS)
-#define ACLKUART0 (CKC_BASE + ACLKUART0_OFFS)
-#define ACLKUART1 (CKC_BASE + ACLKUART1_OFFS)
-#define ACLKUART2 (CKC_BASE + ACLKUART2_OFFS)
-#define ACLKUART3 (CKC_BASE + ACLKUART3_OFFS)
-#define ACLKUART4 (CKC_BASE + ACLKUART4_OFFS)
-#define ACLKI2C (CKC_BASE + ACLKI2C_OFFS)
-#define ACLKADC (CKC_BASE + ACLKADC_OFFS)
-#define ACLKUSBH (CKC_BASE + ACLKUSBH_OFFS)
-#define ACLKLCD (CKC_BASE + ACLKLCD_OFFS)
-#define ACLKSDH0 (CKC_BASE + ACLKSDH0_OFFS)
-#define ACLKSDH1 (CKC_BASE + ACLKSDH1_OFFS)
-#define ACLKSPI0 (CKC_BASE + ACLKSPI0_OFFS)
-#define ACLKSPI1 (CKC_BASE + ACLKSPI1_OFFS)
-#define ACLKSPDIF (CKC_BASE + ACLKSPDIF_OFFS)
-#define ACLKC3DEC (CKC_BASE + ACLKC3DEC_OFFS)
-#define ACLKCAN0 (CKC_BASE + ACLKCAN0_OFFS)
-#define ACLKCAN1 (CKC_BASE + ACLKCAN1_OFFS)
-#define ACLKGSB0 (CKC_BASE + ACLKGSB0_OFFS)
-#define ACLKGSB1 (CKC_BASE + ACLKGSB1_OFFS)
-#define ACLKGSB2 (CKC_BASE + ACLKGSB2_OFFS)
-#define ACLKGSB3 (CKC_BASE + ACLKGSB3_OFFS)
-#define ACLKTCT (CKC_BASE + ACLKTCT_OFFS)
-#define ACLKTCX (CKC_BASE + ACLKTCX_OFFS)
-#define ACLKTCZ (CKC_BASE + ACLKTCZ_OFFS)
-
-#define ACLK_MAX_DIV (0xfff + 1)
-
-/* Crystal frequencies */
-static unsigned long xi_rate, xti_rate;
-
-static void __iomem *pll_cfg_addr(int pll)
-{
- switch (pll) {
- case 0: return (CKC_BASE + PLL0CFG_OFFS);
- case 1: return (CKC_BASE + PLL1CFG_OFFS);
- case 2: return (CKC_BASE + PLL2CFG_OFFS);
- default:
- BUG();
- }
-}
-
-static int pll_enable(int pll, int enable)
-{
- u32 reg;
- void __iomem *addr = pll_cfg_addr(pll);
-
- reg = __raw_readl(addr);
- if (enable)
- reg &= ~PLLxCFG_PD;
- else
- reg |= PLLxCFG_PD;
-
- __raw_writel(reg, addr);
- return 0;
-}
-
-static int xi_enable(int enable)
-{
- u32 reg;
-
- reg = __raw_readl(CKC_BASE + CLKCTRL_OFFS);
- if (enable)
- reg |= CLKCTRL_XE;
- else
- reg &= ~CLKCTRL_XE;
-
- __raw_writel(reg, CKC_BASE + CLKCTRL_OFFS);
- return 0;
-}
-
-static int root_clk_enable(enum root_clks src)
-{
- switch (src) {
- case CLK_SRC_PLL0: return pll_enable(0, 1);
- case CLK_SRC_PLL1: return pll_enable(1, 1);
- case CLK_SRC_PLL2: return pll_enable(2, 1);
- case CLK_SRC_XI: return xi_enable(1);
- default:
- BUG();
- }
- return 0;
-}
-
-static int root_clk_disable(enum root_clks src)
-{
- switch (src) {
- case CLK_SRC_PLL0: return pll_enable(0, 0);
- case CLK_SRC_PLL1: return pll_enable(1, 0);
- case CLK_SRC_PLL2: return pll_enable(2, 0);
- case CLK_SRC_XI: return xi_enable(0);
- default:
- BUG();
- }
- return 0;
-}
-
-static int enable_clk(struct clk *clk)
-{
- u32 reg;
-
- if (clk->root_id != CLK_SRC_NOROOT)
- return root_clk_enable(clk->root_id);
-
- if (clk->aclkreg) {
- reg = __raw_readl(clk->aclkreg);
- reg |= ACLK_EN;
- __raw_writel(reg, clk->aclkreg);
- }
- if (clk->bclkctr) {
- reg = __raw_readl(clk->bclkctr);
- reg |= 1 << clk->bclk_shift;
- __raw_writel(reg, clk->bclkctr);
- }
- return 0;
-}
-
-static void disable_clk(struct clk *clk)
-{
- u32 reg;
-
- if (clk->root_id != CLK_SRC_NOROOT) {
- root_clk_disable(clk->root_id);
- return;
- }
-
- if (clk->bclkctr) {
- reg = __raw_readl(clk->bclkctr);
- reg &= ~(1 << clk->bclk_shift);
- __raw_writel(reg, clk->bclkctr);
- }
- if (clk->aclkreg) {
- reg = __raw_readl(clk->aclkreg);
- reg &= ~ACLK_EN;
- __raw_writel(reg, clk->aclkreg);
- }
-}
-
-static unsigned long get_rate_pll(int pll)
-{
- u32 reg;
- unsigned long s, m, p;
- void __iomem *addr = pll_cfg_addr(pll);
-
- reg = __raw_readl(addr);
- s = (reg >> 16) & 0x07;
- m = (reg >> 8) & 0xff;
- p = reg & 0x3f;
-
- return (m * xi_rate) / (p * (1 << s));
-}
-
-static unsigned long get_rate_pll_div(int pll)
-{
- u32 reg;
- unsigned long div = 0;
- void __iomem *addr;
-
- switch (pll) {
- case 0:
- addr = CKC_BASE + CLKDIVC0_OFFS;
- reg = __raw_readl(addr);
- if (reg & CLKDIVC0_P0E)
- div = (reg >> 24) & 0x3f;
- break;
- case 1:
- addr = CKC_BASE + CLKDIVC0_OFFS;
- reg = __raw_readl(addr);
- if (reg & CLKDIVC0_P1E)
- div = (reg >> 16) & 0x3f;
- break;
- case 2:
- addr = CKC_BASE + CLKDIVC1_OFFS;
- reg = __raw_readl(addr);
- if (reg & CLKDIVC1_P2E)
- div = reg & 0x3f;
- break;
- }
- return get_rate_pll(pll) / (div + 1);
-}
-
-static unsigned long get_rate_xi_div(void)
-{
- unsigned long div = 0;
- u32 reg = __raw_readl(CKC_BASE + CLKDIVC0_OFFS);
-
- if (reg & CLKDIVC0_XE)
- div = (reg >> 8) & 0x3f;
-
- return xi_rate / (div + 1);
-}
-
-static unsigned long get_rate_xti_div(void)
-{
- unsigned long div = 0;
- u32 reg = __raw_readl(CKC_BASE + CLKDIVC0_OFFS);
-
- if (reg & CLKDIVC0_XTE)
- div = reg & 0x3f;
-
- return xti_rate / (div + 1);
-}
-
-static unsigned long root_clk_get_rate(enum root_clks src)
-{
- switch (src) {
- case CLK_SRC_PLL0: return get_rate_pll(0);
- case CLK_SRC_PLL1: return get_rate_pll(1);
- case CLK_SRC_PLL2: return get_rate_pll(2);
- case CLK_SRC_PLL0DIV: return get_rate_pll_div(0);
- case CLK_SRC_PLL1DIV: return get_rate_pll_div(1);
- case CLK_SRC_PLL2DIV: return get_rate_pll_div(2);
- case CLK_SRC_XI: return xi_rate;
- case CLK_SRC_XTI: return xti_rate;
- case CLK_SRC_XIDIV: return get_rate_xi_div();
- case CLK_SRC_XTIDIV: return get_rate_xti_div();
- default: return 0;
- }
-}
-
-static unsigned long aclk_get_rate(struct clk *clk)
-{
- u32 reg;
- unsigned long div;
- unsigned int src;
-
- reg = __raw_readl(clk->aclkreg);
- div = reg & 0x0fff;
- src = (reg >> ACLK_SEL_SHIFT) & CLK_SRC_MASK;
- return root_clk_get_rate(src) / (div + 1);
-}
-
-static unsigned long aclk_best_div(struct clk *clk, unsigned long rate)
-{
- unsigned long div, src, freq, r1, r2;
-
- if (!rate)
- return ACLK_MAX_DIV;
-
- src = __raw_readl(clk->aclkreg) >> ACLK_SEL_SHIFT;
- src &= CLK_SRC_MASK;
- freq = root_clk_get_rate(src);
- div = freq / rate;
- if (!div)
- return 1;
- if (div >= ACLK_MAX_DIV)
- return ACLK_MAX_DIV;
- r1 = freq / div;
- r2 = freq / (div + 1);
- if ((rate - r2) < (r1 - rate))
- return div + 1;
-
- return div;
-}
-
-static unsigned long aclk_round_rate(struct clk *clk, unsigned long rate)
-{
- unsigned int src;
-
- src = __raw_readl(clk->aclkreg) >> ACLK_SEL_SHIFT;
- src &= CLK_SRC_MASK;
-
- return root_clk_get_rate(src) / aclk_best_div(clk, rate);
-}
-
-static int aclk_set_rate(struct clk *clk, unsigned long rate)
-{
- u32 reg;
-
- reg = __raw_readl(clk->aclkreg) & ~ACLK_DIV_MASK;
- reg |= aclk_best_div(clk, rate) - 1;
- __raw_writel(reg, clk->aclkreg);
- return 0;
-}
-
-static unsigned long get_rate_sys(struct clk *clk)
-{
- unsigned int src;
-
- src = __raw_readl(CKC_BASE + CLKCTRL_OFFS) & CLK_SRC_MASK;
- return root_clk_get_rate(src);
-}
-
-static unsigned long get_rate_bus(struct clk *clk)
-{
- unsigned int reg, sdiv, bdiv, rate;
-
- reg = __raw_readl(CKC_BASE + CLKCTRL_OFFS);
- rate = get_rate_sys(clk);
- sdiv = (reg >> 20) & 3;
- if (sdiv)
- rate /= sdiv + 1;
- bdiv = (reg >> 4) & 0xff;
- if (bdiv)
- rate /= bdiv + 1;
- return rate;
-}
-
-static unsigned long get_rate_cpu(struct clk *clk)
-{
- unsigned int reg, div, fsys, fbus;
-
- fbus = get_rate_bus(clk);
- reg = __raw_readl(CKC_BASE + CLKCTRL_OFFS);
- if (reg & (1 << 29))
- return fbus;
- fsys = get_rate_sys(clk);
- div = (reg >> 16) & 0x0f;
- return fbus + ((fsys - fbus) * (div + 1)) / 16;
-}
-
-static unsigned long get_rate_root(struct clk *clk)
-{
- return root_clk_get_rate(clk->root_id);
-}
-
-static int aclk_set_parent(struct clk *clock, struct clk *parent)
-{
- u32 reg;
-
- if (clock->parent == parent)
- return 0;
-
- clock->parent = parent;
-
- if (!parent)
- return 0;
-
- if (parent->root_id == CLK_SRC_NOROOT)
- return 0;
- reg = __raw_readl(clock->aclkreg);
- reg &= ~ACLK_SEL_MASK;
- reg |= (parent->root_id << ACLK_SEL_SHIFT) & ACLK_SEL_MASK;
- __raw_writel(reg, clock->aclkreg);
-
- return 0;
-}
-
-#define DEFINE_ROOT_CLOCK(name, ri, p) \
- static struct clk name = { \
- .root_id = ri, \
- .get_rate = get_rate_root, \
- .enable = enable_clk, \
- .disable = disable_clk, \
- .parent = p, \
- };
-
-#define DEFINE_SPECIAL_CLOCK(name, gr, p) \
- static struct clk name = { \
- .root_id = CLK_SRC_NOROOT, \
- .get_rate = gr, \
- .parent = p, \
- };
-
-#define DEFINE_ACLOCK(name, bc, bs, ar) \
- static struct clk name = { \
- .root_id = CLK_SRC_NOROOT, \
- .bclkctr = bc, \
- .bclk_shift = bs, \
- .aclkreg = ar, \
- .get_rate = aclk_get_rate, \
- .set_rate = aclk_set_rate, \
- .round_rate = aclk_round_rate, \
- .enable = enable_clk, \
- .disable = disable_clk, \
- .set_parent = aclk_set_parent, \
- };
-
-#define DEFINE_BCLOCK(name, bc, bs, gr, p) \
- static struct clk name = { \
- .root_id = CLK_SRC_NOROOT, \
- .bclkctr = bc, \
- .bclk_shift = bs, \
- .get_rate = gr, \
- .enable = enable_clk, \
- .disable = disable_clk, \
- .parent = p, \
- };
-
-DEFINE_ROOT_CLOCK(xi, CLK_SRC_XI, NULL)
-DEFINE_ROOT_CLOCK(xti, CLK_SRC_XTI, NULL)
-DEFINE_ROOT_CLOCK(xidiv, CLK_SRC_XIDIV, &xi)
-DEFINE_ROOT_CLOCK(xtidiv, CLK_SRC_XTIDIV, &xti)
-DEFINE_ROOT_CLOCK(pll0, CLK_SRC_PLL0, &xi)
-DEFINE_ROOT_CLOCK(pll1, CLK_SRC_PLL1, &xi)
-DEFINE_ROOT_CLOCK(pll2, CLK_SRC_PLL2, &xi)
-DEFINE_ROOT_CLOCK(pll0div, CLK_SRC_PLL0DIV, &pll0)
-DEFINE_ROOT_CLOCK(pll1div, CLK_SRC_PLL1DIV, &pll1)
-DEFINE_ROOT_CLOCK(pll2div, CLK_SRC_PLL2DIV, &pll2)
-
-/* The following 3 clocks are special and are initialized explicitly later */
-DEFINE_SPECIAL_CLOCK(sys, get_rate_sys, NULL)
-DEFINE_SPECIAL_CLOCK(bus, get_rate_bus, &sys)
-DEFINE_SPECIAL_CLOCK(cpu, get_rate_cpu, &sys)
-
-DEFINE_ACLOCK(tct, NULL, 0, ACLKTCT)
-DEFINE_ACLOCK(tcx, NULL, 0, ACLKTCX)
-DEFINE_ACLOCK(tcz, NULL, 0, ACLKTCZ)
-DEFINE_ACLOCK(ref, NULL, 0, ACLKREF)
-DEFINE_ACLOCK(uart0, BCLKCTR0, 5, ACLKUART0)
-DEFINE_ACLOCK(uart1, BCLKCTR0, 23, ACLKUART1)
-DEFINE_ACLOCK(uart2, BCLKCTR0, 6, ACLKUART2)
-DEFINE_ACLOCK(uart3, BCLKCTR0, 8, ACLKUART3)
-DEFINE_ACLOCK(uart4, BCLKCTR1, 6, ACLKUART4)
-DEFINE_ACLOCK(i2c, BCLKCTR0, 7, ACLKI2C)
-DEFINE_ACLOCK(adc, BCLKCTR0, 10, ACLKADC)
-DEFINE_ACLOCK(usbh0, BCLKCTR0, 11, ACLKUSBH)
-DEFINE_ACLOCK(lcd, BCLKCTR0, 13, ACLKLCD)
-DEFINE_ACLOCK(sd0, BCLKCTR0, 17, ACLKSDH0)
-DEFINE_ACLOCK(sd1, BCLKCTR1, 5, ACLKSDH1)
-DEFINE_ACLOCK(spi0, BCLKCTR0, 24, ACLKSPI0)
-DEFINE_ACLOCK(spi1, BCLKCTR0, 30, ACLKSPI1)
-DEFINE_ACLOCK(spdif, BCLKCTR1, 2, ACLKSPDIF)
-DEFINE_ACLOCK(c3dec, BCLKCTR1, 9, ACLKC3DEC)
-DEFINE_ACLOCK(can0, BCLKCTR1, 10, ACLKCAN0)
-DEFINE_ACLOCK(can1, BCLKCTR1, 11, ACLKCAN1)
-DEFINE_ACLOCK(gsb0, BCLKCTR1, 13, ACLKGSB0)
-DEFINE_ACLOCK(gsb1, BCLKCTR1, 14, ACLKGSB1)
-DEFINE_ACLOCK(gsb2, BCLKCTR1, 15, ACLKGSB2)
-DEFINE_ACLOCK(gsb3, BCLKCTR1, 16, ACLKGSB3)
-DEFINE_ACLOCK(usbh1, BCLKCTR1, 20, ACLKUSBH)
-
-DEFINE_BCLOCK(dai0, BCLKCTR0, 0, NULL, NULL)
-DEFINE_BCLOCK(pic, BCLKCTR0, 1, NULL, NULL)
-DEFINE_BCLOCK(tc, BCLKCTR0, 2, NULL, NULL)
-DEFINE_BCLOCK(gpio, BCLKCTR0, 3, NULL, NULL)
-DEFINE_BCLOCK(usbd, BCLKCTR0, 4, NULL, NULL)
-DEFINE_BCLOCK(ecc, BCLKCTR0, 9, NULL, NULL)
-DEFINE_BCLOCK(gdma0, BCLKCTR0, 12, NULL, NULL)
-DEFINE_BCLOCK(rtc, BCLKCTR0, 15, NULL, NULL)
-DEFINE_BCLOCK(nfc, BCLKCTR0, 16, NULL, NULL)
-DEFINE_BCLOCK(g2d, BCLKCTR0, 18, NULL, NULL)
-DEFINE_BCLOCK(gdma1, BCLKCTR0, 22, NULL, NULL)
-DEFINE_BCLOCK(mscl, BCLKCTR0, 25, NULL, NULL)
-DEFINE_BCLOCK(bdma, BCLKCTR1, 0, NULL, NULL)
-DEFINE_BCLOCK(adma0, BCLKCTR1, 1, NULL, NULL)
-DEFINE_BCLOCK(scfg, BCLKCTR1, 3, NULL, NULL)
-DEFINE_BCLOCK(cid, BCLKCTR1, 4, NULL, NULL)
-DEFINE_BCLOCK(dai1, BCLKCTR1, 7, NULL, NULL)
-DEFINE_BCLOCK(adma1, BCLKCTR1, 8, NULL, NULL)
-DEFINE_BCLOCK(gps, BCLKCTR1, 12, NULL, NULL)
-DEFINE_BCLOCK(gdma2, BCLKCTR1, 17, NULL, NULL)
-DEFINE_BCLOCK(gdma3, BCLKCTR1, 18, NULL, NULL)
-DEFINE_BCLOCK(ddrc, BCLKCTR1, 19, NULL, NULL)
-
-#define _REGISTER_CLOCK(d, n, c) \
- { \
- .dev_id = d, \
- .con_id = n, \
- .clk = &c, \
- },
-
-static struct clk_lookup lookups[] = {
- _REGISTER_CLOCK(NULL, "bus", bus)
- _REGISTER_CLOCK(NULL, "cpu", cpu)
- _REGISTER_CLOCK(NULL, "tct", tct)
- _REGISTER_CLOCK(NULL, "tcx", tcx)
- _REGISTER_CLOCK(NULL, "tcz", tcz)
- _REGISTER_CLOCK(NULL, "ref", ref)
- _REGISTER_CLOCK(NULL, "dai0", dai0)
- _REGISTER_CLOCK(NULL, "pic", pic)
- _REGISTER_CLOCK(NULL, "tc", tc)
- _REGISTER_CLOCK(NULL, "gpio", gpio)
- _REGISTER_CLOCK(NULL, "usbd", usbd)
- _REGISTER_CLOCK("tcc-uart.0", NULL, uart0)
- _REGISTER_CLOCK("tcc-uart.2", NULL, uart2)
- _REGISTER_CLOCK("tcc-i2c", NULL, i2c)
- _REGISTER_CLOCK("tcc-uart.3", NULL, uart3)
- _REGISTER_CLOCK(NULL, "ecc", ecc)
- _REGISTER_CLOCK(NULL, "adc", adc)
- _REGISTER_CLOCK("tcc-usbh.0", "usb", usbh0)
- _REGISTER_CLOCK(NULL, "gdma0", gdma0)
- _REGISTER_CLOCK(NULL, "lcd", lcd)
- _REGISTER_CLOCK(NULL, "rtc", rtc)
- _REGISTER_CLOCK(NULL, "nfc", nfc)
- _REGISTER_CLOCK("tcc-mmc.0", NULL, sd0)
- _REGISTER_CLOCK(NULL, "g2d", g2d)
- _REGISTER_CLOCK(NULL, "gdma1", gdma1)
- _REGISTER_CLOCK("tcc-uart.1", NULL, uart1)
- _REGISTER_CLOCK("tcc-spi.0", NULL, spi0)
- _REGISTER_CLOCK(NULL, "mscl", mscl)
- _REGISTER_CLOCK("tcc-spi.1", NULL, spi1)
- _REGISTER_CLOCK(NULL, "bdma", bdma)
- _REGISTER_CLOCK(NULL, "adma0", adma0)
- _REGISTER_CLOCK(NULL, "spdif", spdif)
- _REGISTER_CLOCK(NULL, "scfg", scfg)
- _REGISTER_CLOCK(NULL, "cid", cid)
- _REGISTER_CLOCK("tcc-mmc.1", NULL, sd1)
- _REGISTER_CLOCK("tcc-uart.4", NULL, uart4)
- _REGISTER_CLOCK(NULL, "dai1", dai1)
- _REGISTER_CLOCK(NULL, "adma1", adma1)
- _REGISTER_CLOCK(NULL, "c3dec", c3dec)
- _REGISTER_CLOCK("tcc-can.0", NULL, can0)
- _REGISTER_CLOCK("tcc-can.1", NULL, can1)
- _REGISTER_CLOCK(NULL, "gps", gps)
- _REGISTER_CLOCK("tcc-gsb.0", NULL, gsb0)
- _REGISTER_CLOCK("tcc-gsb.1", NULL, gsb1)
- _REGISTER_CLOCK("tcc-gsb.2", NULL, gsb2)
- _REGISTER_CLOCK("tcc-gsb.3", NULL, gsb3)
- _REGISTER_CLOCK(NULL, "gdma2", gdma2)
- _REGISTER_CLOCK(NULL, "gdma3", gdma3)
- _REGISTER_CLOCK(NULL, "ddrc", ddrc)
- _REGISTER_CLOCK("tcc-usbh.1", "usb", usbh1)
-};
-
-static struct clk *root_clk_by_index(enum root_clks src)
-{
- switch (src) {
- case CLK_SRC_PLL0: return &pll0;
- case CLK_SRC_PLL1: return &pll1;
- case CLK_SRC_PLL2: return &pll2;
- case CLK_SRC_PLL0DIV: return &pll0div;
- case CLK_SRC_PLL1DIV: return &pll1div;
- case CLK_SRC_PLL2DIV: return &pll2div;
- case CLK_SRC_XI: return &xi;
- case CLK_SRC_XTI: return &xti;
- case CLK_SRC_XIDIV: return &xidiv;
- case CLK_SRC_XTIDIV: return &xtidiv;
- default: return NULL;
- }
-}
-
-static void find_aclk_parent(struct clk *clk)
-{
- unsigned int src;
- struct clk *clock;
-
- if (!clk->aclkreg)
- return;
-
- src = __raw_readl(clk->aclkreg) >> ACLK_SEL_SHIFT;
- src &= CLK_SRC_MASK;
-
- clock = root_clk_by_index(src);
- if (!clock)
- return;
-
- clk->parent = clock;
- clk->set_parent = aclk_set_parent;
-}
-
-void __init tcc_clocks_init(unsigned long xi_freq, unsigned long xti_freq)
-{
- int i;
-
- xi_rate = xi_freq;
- xti_rate = xti_freq;
-
- /* fixup parents and add the clock */
- for (i = 0; i < ARRAY_SIZE(lookups); i++) {
- find_aclk_parent(lookups[i].clk);
- clkdev_add(&lookups[i]);
- }
- tcc8k_timer_init(&tcz, (void __iomem *)TIMER_BASE, INT_TC32);
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-28 20:19:01 +0000