305 lines
6.8 KiB
C
305 lines
6.8 KiB
C
/*
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* Chip-specific setup code for the SAMA5D4 family
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*
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* Copyright (C) 2014 Atmel Corporation,
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* Bo Shen <voice.shen@atmel.com>
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*
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* Licensed under GPLv2 or later.
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*/
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#include <common.h>
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#include <gpio.h>
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#include <init.h>
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#include <mach/hardware.h>
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#include <mach/at91_pmc.h>
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#include <mach/io.h>
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#include <mach/cpu.h>
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#include <linux/clk.h>
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#include "soc.h"
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#include "generic.h"
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#include "clock.h"
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/*
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* The peripheral clocks.
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*/
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static struct clk pit_clk = {
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.name = "pit_clk",
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.pid = SAMA5D4_ID_PIT,
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.type = CLK_TYPE_PERIPHERAL,
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};
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static struct clk smc_clk = {
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.name = "smc_clk",
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.pid = SAMA5D4_ID_HSMC,
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.type = CLK_TYPE_PERIPHERAL,
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};
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static struct clk pioA_clk = {
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.name = "pioA_clk",
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.pid = SAMA5D4_ID_PIOA,
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.type = CLK_TYPE_PERIPHERAL,
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};
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static struct clk pioB_clk = {
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.name = "pioB_clk",
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.pid = SAMA5D4_ID_PIOB,
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.type = CLK_TYPE_PERIPHERAL,
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};
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static struct clk pioC_clk = {
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.name = "pioC_clk",
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.pid = SAMA5D4_ID_PIOC,
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.type = CLK_TYPE_PERIPHERAL,
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};
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static struct clk pioD_clk = {
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.name = "pioD_clk",
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.pid = SAMA5D4_ID_PIOD,
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.type = CLK_TYPE_PERIPHERAL,
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};
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static struct clk pioE_clk = {
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.name = "pioE_clk",
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.pid = SAMA5D4_ID_PIOE,
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.type = CLK_TYPE_PERIPHERAL,
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};
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static struct clk usart0_clk = {
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.name = "usart0_clk",
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.pid = SAMA5D4_ID_USART0,
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.type = CLK_TYPE_PERIPHERAL,
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};
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static struct clk usart2_clk = {
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.name = "usart2_clk",
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.pid = SAMA5D4_ID_USART2,
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.type = CLK_TYPE_PERIPHERAL,
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};
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static struct clk usart3_clk = {
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.name = "usart3_clk",
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.pid = SAMA5D4_ID_USART3,
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.type = CLK_TYPE_PERIPHERAL,
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};
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static struct clk usart4_clk = {
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.name = "usart4_clk",
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.pid = SAMA5D4_ID_USART4,
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.type = CLK_TYPE_PERIPHERAL,
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};
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static struct clk mmc0_clk = {
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.name = "mci0_clk",
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.pid = SAMA5D4_ID_HSMCI0,
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.type = CLK_TYPE_PERIPHERAL,
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};
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static struct clk mmc1_clk = {
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.name = "mci1_clk",
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.pid = SAMA5D4_ID_HSMCI1,
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.type = CLK_TYPE_PERIPHERAL,
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};
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static struct clk tcb0_clk = {
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.name = "tcb0_clk",
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.pid = SAMA5D4_ID_TC0,
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.type = CLK_TYPE_PERIPHERAL,
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};
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static struct clk tcb1_clk = {
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.name = "tcb1_clk",
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.pid = SAMA5D4_ID_TC1,
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.type = CLK_TYPE_PERIPHERAL,
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};
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static struct clk adc_clk = {
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.name = "adc_clk",
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.pid = SAMA5D4_ID_ADC,
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.type = CLK_TYPE_PERIPHERAL,
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};
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static struct clk dma0_clk = {
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.name = "dma0_clk",
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.pid = SAMA5D4_ID_DMA0,
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.type = CLK_TYPE_PERIPHERAL | CLK_TYPE_PERIPH_H64MX,
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};
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static struct clk dma1_clk = {
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.name = "dma1_clk",
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.pid = SAMA5D4_ID_DMA1,
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.type = CLK_TYPE_PERIPHERAL | CLK_TYPE_PERIPH_H64MX,
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};
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static struct clk uhphs_clk = {
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.name = "uhphs",
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.pid = SAMA5D4_ID_UHPHS,
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.type = CLK_TYPE_PERIPHERAL,
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};
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static struct clk udphs_clk = {
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.name = "udphs_clk",
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.pid = SAMA5D4_ID_UDPHS,
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.type = CLK_TYPE_PERIPHERAL,
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};
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static struct clk lcdc_clk = {
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.name = "lcdc_clk",
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.pid = SAMA5D4_ID_LCDC,
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.type = CLK_TYPE_PERIPHERAL | CLK_TYPE_PERIPH_H64MX,
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};
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static struct clk isi_clk = {
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.name = "isi_clk",
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.pid = SAMA5D4_ID_ISI,
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.type = CLK_TYPE_PERIPHERAL | CLK_TYPE_PERIPH_H64MX,
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};
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static struct clk macb0_clk = {
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.name = "macb0_clk",
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.pid = SAMA5D4_ID_GMAC0,
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.type = CLK_TYPE_PERIPHERAL,
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};
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static struct clk twi0_clk = {
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.name = "twi0_clk",
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.pid = SAMA5D4_ID_TWI0,
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.type = CLK_TYPE_PERIPHERAL,
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};
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static struct clk twi2_clk = {
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.name = "twi2_clk",
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.pid = SAMA5D4_ID_TWI2,
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.type = CLK_TYPE_PERIPHERAL,
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};
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static struct clk spi0_clk = {
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.name = "spi0_clk",
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.pid = SAMA5D4_ID_SPI0,
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.type = CLK_TYPE_PERIPHERAL,
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};
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static struct clk smd_clk = {
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.name = "smd_clk",
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.pid = SAMA5D4_ID_SMD,
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.type = CLK_TYPE_PERIPHERAL,
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};
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static struct clk ssc0_clk = {
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.name = "ssc0_clk",
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.pid = SAMA5D4_ID_SSC0,
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.type = CLK_TYPE_PERIPHERAL,
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};
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static struct clk ssc1_clk = {
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.name = "ssc1_clk",
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.pid = SAMA5D4_ID_SSC1,
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.type = CLK_TYPE_PERIPHERAL,
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};
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static struct clk sha_clk = {
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.name = "sha_clk",
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.pid = SAMA5D4_ID_SHA,
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.type = CLK_TYPE_PERIPHERAL,
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};
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static struct clk aes_clk = {
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.name = "aes_clk",
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.pid = SAMA5D4_ID_AES,
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.type = CLK_TYPE_PERIPHERAL,
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};
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static struct clk tdes_clk = {
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.name = "tdes_clk",
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.pid = SAMA5D4_ID_TDES,
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.type = CLK_TYPE_PERIPHERAL,
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};
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static struct clk *periph_clocks[] __initdata = {
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&pit_clk,
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&smc_clk,
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&pioA_clk,
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&pioB_clk,
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&pioC_clk,
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&pioD_clk,
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&pioE_clk,
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&usart0_clk,
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&usart2_clk,
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&usart3_clk,
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&usart4_clk,
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&mmc0_clk,
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&mmc1_clk,
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&tcb0_clk,
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&tcb1_clk,
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&adc_clk,
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&dma0_clk,
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&dma1_clk,
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&uhphs_clk,
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&udphs_clk,
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&lcdc_clk,
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&isi_clk,
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&macb0_clk,
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&twi0_clk,
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&twi2_clk,
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&spi0_clk,
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&smd_clk,
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&ssc0_clk,
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&ssc1_clk,
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&sha_clk,
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&aes_clk,
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&tdes_clk,
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};
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static struct clk pck0 = {
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.name = "pck0",
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.pmc_mask = AT91_PMC_PCK0,
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.type = CLK_TYPE_PROGRAMMABLE,
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.id = 0,
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};
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static struct clk pck1 = {
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.name = "pck1",
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.pmc_mask = AT91_PMC_PCK1,
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.type = CLK_TYPE_PROGRAMMABLE,
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.id = 1,
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};
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static struct clk pck2 = {
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.name = "pck2",
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.pmc_mask = AT91_PMC_PCK2,
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.type = CLK_TYPE_PROGRAMMABLE,
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.id = 2,
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};
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static struct clk_lookup periph_clocks_lookups[] = {
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CLKDEV_CON_DEV_ID("macb_clk", "macb0", &macb0_clk),
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CLKDEV_CON_DEV_ID("mci_clk", "atmel_mci0", &mmc0_clk),
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CLKDEV_CON_DEV_ID("mci_clk", "atmel_mci1", &mmc1_clk),
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CLKDEV_CON_DEV_ID("spi_clk", "atmel_spi0", &spi0_clk),
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CLKDEV_DEV_ID("at91-pit", &pit_clk),
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CLKDEV_CON_DEV_ID("hck1", "atmel_hlcdfb", &lcdc_clk),
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};
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static struct clk_lookup usart_clocks_lookups[] = {
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CLKDEV_CON_DEV_ID("usart", "atmel_usart0", &mck),
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CLKDEV_CON_DEV_ID("usart", "atmel_usart1", &usart0_clk),
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CLKDEV_CON_DEV_ID("usart", "atmel_usart3", &usart2_clk),
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CLKDEV_CON_DEV_ID("usart", "atmel_usart4", &usart3_clk),
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};
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static void __init sama5d4_register_clocks(void)
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{
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int i;
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for (i = 0; i < ARRAY_SIZE(periph_clocks); i++)
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clk_register(periph_clocks[i]);
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clkdev_add_physbase(&pioA_clk, SAMA5D4_BASE_PIOA, 0);
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clkdev_add_physbase(&pioB_clk, SAMA5D4_BASE_PIOB, 0);
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clkdev_add_physbase(&pioC_clk, SAMA5D4_BASE_PIOC, 0);
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clkdev_add_physbase(&pioD_clk, SAMA5D4_BASE_PIOD, 0);
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clkdev_add_physbase(&pioE_clk, SAMA5D4_BASE_PIOE, 0);
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clkdev_add_table(periph_clocks_lookups,
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ARRAY_SIZE(periph_clocks_lookups));
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clkdev_add_table(usart_clocks_lookups,
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ARRAY_SIZE(usart_clocks_lookups));
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clk_register(&pck0);
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clk_register(&pck1);
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clk_register(&pck2);
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}
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/* --------------------------------------------------------------------
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* Processor initialization
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* -------------------------------------------------------------------- */
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static void sama5d4_initialize(void)
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{
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/* Register the processor-specific clocks */
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sama5d4_register_clocks();
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/* Register GPIO subsystem */
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at91_add_sam9x5_gpio(0, SAMA5D4_BASE_PIOA);
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at91_add_sam9x5_gpio(1, SAMA5D4_BASE_PIOB);
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at91_add_sam9x5_gpio(2, SAMA5D4_BASE_PIOC);
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at91_add_sam9x5_gpio(3, SAMA5D4_BASE_PIOD);
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at91_add_sam9x5_gpio(4, SAMA5D4_BASE_PIOE);
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at91_add_pit(SAMA5D4_BASE_PIT);
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at91_add_sam9_smc(DEVICE_ID_SINGLE, SAMA5D4_BASE_HSMC + 0x600, 0xa0);
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}
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AT91_SOC_START(sama5d4)
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.init = sama5d4_initialize,
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AT91_SOC_END
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