518 строки
11 KiB
C
518 строки
11 KiB
C
/*
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* TI DaVinci DM644x chip specific setup
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*
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* Author: Kevin Hilman, Deep Root Systems, LLC
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*
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* 2007 (c) Deep Root Systems, LLC. This file is licensed under
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* the terms of the GNU General Public License version 2. This program
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* is licensed "as is" without any warranty of any kind, whether express
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* or implied.
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*/
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/clk.h>
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#include <linux/platform_device.h>
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#include <asm/mach/map.h>
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#include <mach/dm644x.h>
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#include <mach/clock.h>
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#include <mach/cputype.h>
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#include <mach/edma.h>
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#include <mach/irqs.h>
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#include <mach/psc.h>
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#include <mach/mux.h>
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#include <mach/common.h>
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#include "clock.h"
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#include "mux.h"
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/*
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* Device specific clocks
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*/
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#define DM644X_REF_FREQ 27000000
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static struct pll_data pll1_data = {
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.num = 1,
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.phys_base = DAVINCI_PLL1_BASE,
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};
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static struct pll_data pll2_data = {
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.num = 2,
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.phys_base = DAVINCI_PLL2_BASE,
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};
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static struct clk ref_clk = {
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.name = "ref_clk",
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.rate = DM644X_REF_FREQ,
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};
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static struct clk pll1_clk = {
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.name = "pll1",
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.parent = &ref_clk,
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.pll_data = &pll1_data,
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.flags = CLK_PLL,
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};
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static struct clk pll1_sysclk1 = {
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.name = "pll1_sysclk1",
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.parent = &pll1_clk,
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.flags = CLK_PLL,
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.div_reg = PLLDIV1,
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};
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static struct clk pll1_sysclk2 = {
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.name = "pll1_sysclk2",
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.parent = &pll1_clk,
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.flags = CLK_PLL,
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.div_reg = PLLDIV2,
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};
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static struct clk pll1_sysclk3 = {
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.name = "pll1_sysclk3",
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.parent = &pll1_clk,
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.flags = CLK_PLL,
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.div_reg = PLLDIV3,
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};
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static struct clk pll1_sysclk5 = {
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.name = "pll1_sysclk5",
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.parent = &pll1_clk,
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.flags = CLK_PLL,
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.div_reg = PLLDIV5,
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};
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static struct clk pll1_aux_clk = {
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.name = "pll1_aux_clk",
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.parent = &pll1_clk,
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.flags = CLK_PLL | PRE_PLL,
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};
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static struct clk pll1_sysclkbp = {
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.name = "pll1_sysclkbp",
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.parent = &pll1_clk,
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.flags = CLK_PLL | PRE_PLL,
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.div_reg = BPDIV
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};
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static struct clk pll2_clk = {
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.name = "pll2",
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.parent = &ref_clk,
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.pll_data = &pll2_data,
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.flags = CLK_PLL,
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};
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static struct clk pll2_sysclk1 = {
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.name = "pll2_sysclk1",
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.parent = &pll2_clk,
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.flags = CLK_PLL,
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.div_reg = PLLDIV1,
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};
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static struct clk pll2_sysclk2 = {
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.name = "pll2_sysclk2",
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.parent = &pll2_clk,
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.flags = CLK_PLL,
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.div_reg = PLLDIV2,
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};
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static struct clk pll2_sysclkbp = {
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.name = "pll2_sysclkbp",
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.parent = &pll2_clk,
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.flags = CLK_PLL | PRE_PLL,
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.div_reg = BPDIV
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};
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static struct clk dsp_clk = {
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.name = "dsp",
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.parent = &pll1_sysclk1,
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.lpsc = DAVINCI_LPSC_GEM,
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.flags = PSC_DSP,
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.usecount = 1, /* REVISIT how to disable? */
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};
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static struct clk arm_clk = {
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.name = "arm",
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.parent = &pll1_sysclk2,
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.lpsc = DAVINCI_LPSC_ARM,
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.flags = ALWAYS_ENABLED,
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};
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static struct clk vicp_clk = {
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.name = "vicp",
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.parent = &pll1_sysclk2,
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.lpsc = DAVINCI_LPSC_IMCOP,
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.flags = PSC_DSP,
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.usecount = 1, /* REVISIT how to disable? */
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};
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static struct clk vpss_master_clk = {
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.name = "vpss_master",
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.parent = &pll1_sysclk3,
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.lpsc = DAVINCI_LPSC_VPSSMSTR,
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.flags = CLK_PSC,
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};
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static struct clk vpss_slave_clk = {
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.name = "vpss_slave",
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.parent = &pll1_sysclk3,
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.lpsc = DAVINCI_LPSC_VPSSSLV,
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};
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static struct clk uart0_clk = {
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.name = "uart0",
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.parent = &pll1_aux_clk,
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.lpsc = DAVINCI_LPSC_UART0,
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};
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static struct clk uart1_clk = {
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.name = "uart1",
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.parent = &pll1_aux_clk,
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.lpsc = DAVINCI_LPSC_UART1,
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};
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static struct clk uart2_clk = {
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.name = "uart2",
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.parent = &pll1_aux_clk,
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.lpsc = DAVINCI_LPSC_UART2,
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};
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static struct clk emac_clk = {
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.name = "emac",
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.parent = &pll1_sysclk5,
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.lpsc = DAVINCI_LPSC_EMAC_WRAPPER,
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};
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static struct clk i2c_clk = {
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.name = "i2c",
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.parent = &pll1_aux_clk,
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.lpsc = DAVINCI_LPSC_I2C,
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};
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static struct clk ide_clk = {
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.name = "ide",
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.parent = &pll1_sysclk5,
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.lpsc = DAVINCI_LPSC_ATA,
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};
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static struct clk asp_clk = {
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.name = "asp0",
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.parent = &pll1_sysclk5,
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.lpsc = DAVINCI_LPSC_McBSP,
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};
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static struct clk mmcsd_clk = {
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.name = "mmcsd",
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.parent = &pll1_sysclk5,
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.lpsc = DAVINCI_LPSC_MMC_SD,
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};
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static struct clk spi_clk = {
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.name = "spi",
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.parent = &pll1_sysclk5,
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.lpsc = DAVINCI_LPSC_SPI,
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};
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static struct clk gpio_clk = {
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.name = "gpio",
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.parent = &pll1_sysclk5,
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.lpsc = DAVINCI_LPSC_GPIO,
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};
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static struct clk usb_clk = {
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.name = "usb",
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.parent = &pll1_sysclk5,
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.lpsc = DAVINCI_LPSC_USB,
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};
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static struct clk vlynq_clk = {
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.name = "vlynq",
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.parent = &pll1_sysclk5,
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.lpsc = DAVINCI_LPSC_VLYNQ,
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};
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static struct clk aemif_clk = {
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.name = "aemif",
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.parent = &pll1_sysclk5,
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.lpsc = DAVINCI_LPSC_AEMIF,
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};
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static struct clk pwm0_clk = {
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.name = "pwm0",
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.parent = &pll1_aux_clk,
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.lpsc = DAVINCI_LPSC_PWM0,
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};
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static struct clk pwm1_clk = {
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.name = "pwm1",
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.parent = &pll1_aux_clk,
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.lpsc = DAVINCI_LPSC_PWM1,
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};
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static struct clk pwm2_clk = {
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.name = "pwm2",
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.parent = &pll1_aux_clk,
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.lpsc = DAVINCI_LPSC_PWM2,
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};
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static struct clk timer0_clk = {
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.name = "timer0",
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.parent = &pll1_aux_clk,
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.lpsc = DAVINCI_LPSC_TIMER0,
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};
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static struct clk timer1_clk = {
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.name = "timer1",
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.parent = &pll1_aux_clk,
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.lpsc = DAVINCI_LPSC_TIMER1,
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};
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static struct clk timer2_clk = {
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.name = "timer2",
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.parent = &pll1_aux_clk,
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.lpsc = DAVINCI_LPSC_TIMER2,
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.usecount = 1, /* REVISIT: why cant' this be disabled? */
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};
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struct davinci_clk dm644x_clks[] = {
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CLK(NULL, "ref", &ref_clk),
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CLK(NULL, "pll1", &pll1_clk),
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CLK(NULL, "pll1_sysclk1", &pll1_sysclk1),
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CLK(NULL, "pll1_sysclk2", &pll1_sysclk2),
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CLK(NULL, "pll1_sysclk3", &pll1_sysclk3),
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CLK(NULL, "pll1_sysclk5", &pll1_sysclk5),
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CLK(NULL, "pll1_aux", &pll1_aux_clk),
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CLK(NULL, "pll1_sysclkbp", &pll1_sysclkbp),
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CLK(NULL, "pll2", &pll2_clk),
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CLK(NULL, "pll2_sysclk1", &pll2_sysclk1),
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CLK(NULL, "pll2_sysclk2", &pll2_sysclk2),
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CLK(NULL, "pll2_sysclkbp", &pll2_sysclkbp),
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CLK(NULL, "dsp", &dsp_clk),
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CLK(NULL, "arm", &arm_clk),
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CLK(NULL, "vicp", &vicp_clk),
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CLK(NULL, "vpss_master", &vpss_master_clk),
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CLK(NULL, "vpss_slave", &vpss_slave_clk),
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CLK(NULL, "arm", &arm_clk),
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CLK(NULL, "uart0", &uart0_clk),
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CLK(NULL, "uart1", &uart1_clk),
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CLK(NULL, "uart2", &uart2_clk),
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CLK("davinci_emac.1", NULL, &emac_clk),
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CLK("i2c_davinci.1", NULL, &i2c_clk),
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CLK("palm_bk3710", NULL, &ide_clk),
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CLK("soc-audio.0", NULL, &asp_clk),
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CLK("davinci_mmc.0", NULL, &mmcsd_clk),
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CLK(NULL, "spi", &spi_clk),
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CLK(NULL, "gpio", &gpio_clk),
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CLK(NULL, "usb", &usb_clk),
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CLK(NULL, "vlynq", &vlynq_clk),
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CLK(NULL, "aemif", &aemif_clk),
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CLK(NULL, "pwm0", &pwm0_clk),
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CLK(NULL, "pwm1", &pwm1_clk),
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CLK(NULL, "pwm2", &pwm2_clk),
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CLK(NULL, "timer0", &timer0_clk),
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CLK(NULL, "timer1", &timer1_clk),
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CLK("watchdog", NULL, &timer2_clk),
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CLK(NULL, NULL, NULL),
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};
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#if defined(CONFIG_TI_DAVINCI_EMAC) || defined(CONFIG_TI_DAVINCI_EMAC_MODULE)
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static struct resource dm644x_emac_resources[] = {
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{
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.start = DM644X_EMAC_BASE,
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.end = DM644X_EMAC_BASE + 0x47ff,
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.flags = IORESOURCE_MEM,
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},
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{
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.start = IRQ_EMACINT,
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.end = IRQ_EMACINT,
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct platform_device dm644x_emac_device = {
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.name = "davinci_emac",
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.id = 1,
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.num_resources = ARRAY_SIZE(dm644x_emac_resources),
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.resource = dm644x_emac_resources,
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};
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#endif
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/*
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* Device specific mux setup
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*
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* soc description mux mode mode mux dbg
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* reg offset mask mode
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*/
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static const struct mux_config dm644x_pins[] = {
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MUX_CFG(DM644X, HDIREN, 0, 16, 1, 1, true)
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MUX_CFG(DM644X, ATAEN, 0, 17, 1, 1, true)
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MUX_CFG(DM644X, ATAEN_DISABLE, 0, 17, 1, 0, true)
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MUX_CFG(DM644X, HPIEN_DISABLE, 0, 29, 1, 0, true)
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MUX_CFG(DM644X, AEAW, 0, 0, 31, 31, true)
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MUX_CFG(DM644X, MSTK, 1, 9, 1, 0, false)
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MUX_CFG(DM644X, I2C, 1, 7, 1, 1, false)
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MUX_CFG(DM644X, MCBSP, 1, 10, 1, 1, false)
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MUX_CFG(DM644X, UART1, 1, 1, 1, 1, true)
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MUX_CFG(DM644X, UART2, 1, 2, 1, 1, true)
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MUX_CFG(DM644X, PWM0, 1, 4, 1, 1, false)
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MUX_CFG(DM644X, PWM1, 1, 5, 1, 1, false)
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MUX_CFG(DM644X, PWM2, 1, 6, 1, 1, false)
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MUX_CFG(DM644X, VLYNQEN, 0, 15, 1, 1, false)
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MUX_CFG(DM644X, VLSCREN, 0, 14, 1, 1, false)
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MUX_CFG(DM644X, VLYNQWD, 0, 12, 3, 3, false)
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MUX_CFG(DM644X, EMACEN, 0, 31, 1, 1, true)
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MUX_CFG(DM644X, GPIO3V, 0, 31, 1, 0, true)
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MUX_CFG(DM644X, GPIO0, 0, 24, 1, 0, true)
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MUX_CFG(DM644X, GPIO3, 0, 25, 1, 0, false)
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MUX_CFG(DM644X, GPIO43_44, 1, 7, 1, 0, false)
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MUX_CFG(DM644X, GPIO46_47, 0, 22, 1, 0, true)
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MUX_CFG(DM644X, RGB666, 0, 22, 1, 1, true)
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MUX_CFG(DM644X, LOEEN, 0, 24, 1, 1, true)
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MUX_CFG(DM644X, LFLDEN, 0, 25, 1, 1, false)
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};
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/*----------------------------------------------------------------------*/
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static const s8 dma_chan_dm644x_no_event[] = {
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0, 1, 12, 13, 14,
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15, 25, 30, 31, 45,
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46, 47, 55, 56, 57,
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58, 59, 60, 61, 62,
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63,
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-1
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};
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static struct edma_soc_info dm644x_edma_info = {
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.n_channel = 64,
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.n_region = 4,
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.n_slot = 128,
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.n_tc = 2,
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.noevent = dma_chan_dm644x_no_event,
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};
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static struct resource edma_resources[] = {
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{
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.name = "edma_cc",
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.start = 0x01c00000,
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.end = 0x01c00000 + SZ_64K - 1,
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.flags = IORESOURCE_MEM,
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},
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{
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.name = "edma_tc0",
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.start = 0x01c10000,
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.end = 0x01c10000 + SZ_1K - 1,
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.flags = IORESOURCE_MEM,
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},
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{
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.name = "edma_tc1",
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.start = 0x01c10400,
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.end = 0x01c10400 + SZ_1K - 1,
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.flags = IORESOURCE_MEM,
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},
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{
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.start = IRQ_CCINT0,
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.flags = IORESOURCE_IRQ,
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},
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{
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.start = IRQ_CCERRINT,
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.flags = IORESOURCE_IRQ,
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},
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/* not using TC*_ERR */
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};
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static struct platform_device dm644x_edma_device = {
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.name = "edma",
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.id = -1,
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.dev.platform_data = &dm644x_edma_info,
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.num_resources = ARRAY_SIZE(edma_resources),
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.resource = edma_resources,
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};
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/*----------------------------------------------------------------------*/
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#if defined(CONFIG_TI_DAVINCI_EMAC) || defined(CONFIG_TI_DAVINCI_EMAC_MODULE)
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void dm644x_init_emac(struct emac_platform_data *pdata)
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{
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pdata->ctrl_reg_offset = DM644X_EMAC_CNTRL_OFFSET;
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pdata->ctrl_mod_reg_offset = DM644X_EMAC_CNTRL_MOD_OFFSET;
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pdata->ctrl_ram_offset = DM644X_EMAC_CNTRL_RAM_OFFSET;
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pdata->mdio_reg_offset = DM644X_EMAC_MDIO_OFFSET;
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pdata->ctrl_ram_size = DM644X_EMAC_CNTRL_RAM_SIZE;
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pdata->version = EMAC_VERSION_1;
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dm644x_emac_device.dev.platform_data = pdata;
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platform_device_register(&dm644x_emac_device);
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}
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#else
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void dm644x_init_emac(struct emac_platform_data *unused) {}
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#endif
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static struct map_desc dm644x_io_desc[] = {
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{
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.virtual = IO_VIRT,
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.pfn = __phys_to_pfn(IO_PHYS),
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.length = IO_SIZE,
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.type = MT_DEVICE
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},
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};
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/* Contents of JTAG ID register used to identify exact cpu type */
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static struct davinci_id dm644x_ids[] = {
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{
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.variant = 0x0,
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.part_no = 0xb700,
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.manufacturer = 0x017,
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.cpu_id = DAVINCI_CPU_ID_DM6446,
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.name = "dm6446",
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},
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};
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static void __iomem *dm644x_psc_bases[] = {
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IO_ADDRESS(DAVINCI_PWR_SLEEP_CNTRL_BASE),
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};
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static struct davinci_soc_info davinci_soc_info_dm644x = {
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.io_desc = dm644x_io_desc,
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.io_desc_num = ARRAY_SIZE(dm644x_io_desc),
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|
.jtag_id_base = IO_ADDRESS(0x01c40028),
|
|
.ids = dm644x_ids,
|
|
.ids_num = ARRAY_SIZE(dm644x_ids),
|
|
.cpu_clks = dm644x_clks,
|
|
.psc_bases = dm644x_psc_bases,
|
|
.psc_bases_num = ARRAY_SIZE(dm644x_psc_bases),
|
|
};
|
|
|
|
void __init dm644x_init(void)
|
|
{
|
|
davinci_common_init(&davinci_soc_info_dm644x);
|
|
davinci_mux_register(dm644x_pins, ARRAY_SIZE(dm644x_pins));
|
|
}
|
|
|
|
static int __init dm644x_init_devices(void)
|
|
{
|
|
if (!cpu_is_davinci_dm644x())
|
|
return 0;
|
|
|
|
platform_device_register(&dm644x_edma_device);
|
|
return 0;
|
|
}
|
|
postcore_initcall(dm644x_init_devices);
|