220 lines
6.8 KiB
C
220 lines
6.8 KiB
C
/*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*
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* Copyright (C) 2012 Jonas Gorski <jonas.gorski@gmail.com>
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*/
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#include <linux/init.h>
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#include <linux/export.h>
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#include <linux/mutex.h>
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#include <linux/err.h>
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#include <linux/clk.h>
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#include <linux/delay.h>
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#include <bcm63xx_cpu.h>
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#include <bcm63xx_io.h>
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#include <bcm63xx_regs.h>
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#include <bcm63xx_reset.h>
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#define __GEN_RESET_BITS_TABLE(__cpu) \
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[BCM63XX_RESET_SPI] = BCM## __cpu ##_RESET_SPI, \
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[BCM63XX_RESET_ENET] = BCM## __cpu ##_RESET_ENET, \
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[BCM63XX_RESET_USBH] = BCM## __cpu ##_RESET_USBH, \
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[BCM63XX_RESET_USBD] = BCM## __cpu ##_RESET_USBD, \
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[BCM63XX_RESET_DSL] = BCM## __cpu ##_RESET_DSL, \
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[BCM63XX_RESET_SAR] = BCM## __cpu ##_RESET_SAR, \
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[BCM63XX_RESET_EPHY] = BCM## __cpu ##_RESET_EPHY, \
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[BCM63XX_RESET_ENETSW] = BCM## __cpu ##_RESET_ENETSW, \
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[BCM63XX_RESET_PCM] = BCM## __cpu ##_RESET_PCM, \
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[BCM63XX_RESET_MPI] = BCM## __cpu ##_RESET_MPI, \
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[BCM63XX_RESET_PCIE] = BCM## __cpu ##_RESET_PCIE, \
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[BCM63XX_RESET_PCIE_EXT] = BCM## __cpu ##_RESET_PCIE_EXT,
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#define BCM3368_RESET_SPI SOFTRESET_3368_SPI_MASK
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#define BCM3368_RESET_ENET SOFTRESET_3368_ENET_MASK
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#define BCM3368_RESET_USBH 0
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#define BCM3368_RESET_USBD SOFTRESET_3368_USBS_MASK
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#define BCM3368_RESET_DSL 0
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#define BCM3368_RESET_SAR 0
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#define BCM3368_RESET_EPHY SOFTRESET_3368_EPHY_MASK
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#define BCM3368_RESET_ENETSW 0
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#define BCM3368_RESET_PCM SOFTRESET_3368_PCM_MASK
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#define BCM3368_RESET_MPI SOFTRESET_3368_MPI_MASK
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#define BCM3368_RESET_PCIE 0
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#define BCM3368_RESET_PCIE_EXT 0
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#define BCM6328_RESET_SPI SOFTRESET_6328_SPI_MASK
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#define BCM6328_RESET_ENET 0
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#define BCM6328_RESET_USBH SOFTRESET_6328_USBH_MASK
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#define BCM6328_RESET_USBD SOFTRESET_6328_USBS_MASK
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#define BCM6328_RESET_DSL 0
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#define BCM6328_RESET_SAR SOFTRESET_6328_SAR_MASK
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#define BCM6328_RESET_EPHY SOFTRESET_6328_EPHY_MASK
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#define BCM6328_RESET_ENETSW SOFTRESET_6328_ENETSW_MASK
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#define BCM6328_RESET_PCM SOFTRESET_6328_PCM_MASK
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#define BCM6328_RESET_MPI 0
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#define BCM6328_RESET_PCIE \
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(SOFTRESET_6328_PCIE_MASK | \
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SOFTRESET_6328_PCIE_CORE_MASK | \
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SOFTRESET_6328_PCIE_HARD_MASK)
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#define BCM6328_RESET_PCIE_EXT SOFTRESET_6328_PCIE_EXT_MASK
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#define BCM6338_RESET_SPI SOFTRESET_6338_SPI_MASK
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#define BCM6338_RESET_ENET SOFTRESET_6338_ENET_MASK
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#define BCM6338_RESET_USBH SOFTRESET_6338_USBH_MASK
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#define BCM6338_RESET_USBD SOFTRESET_6338_USBS_MASK
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#define BCM6338_RESET_DSL SOFTRESET_6338_ADSL_MASK
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#define BCM6338_RESET_SAR SOFTRESET_6338_SAR_MASK
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#define BCM6338_RESET_EPHY 0
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#define BCM6338_RESET_ENETSW 0
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#define BCM6338_RESET_PCM 0
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#define BCM6338_RESET_MPI 0
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#define BCM6338_RESET_PCIE 0
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#define BCM6338_RESET_PCIE_EXT 0
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#define BCM6348_RESET_SPI SOFTRESET_6348_SPI_MASK
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#define BCM6348_RESET_ENET SOFTRESET_6348_ENET_MASK
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#define BCM6348_RESET_USBH SOFTRESET_6348_USBH_MASK
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#define BCM6348_RESET_USBD SOFTRESET_6348_USBS_MASK
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#define BCM6348_RESET_DSL SOFTRESET_6348_ADSL_MASK
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#define BCM6348_RESET_SAR SOFTRESET_6348_SAR_MASK
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#define BCM6348_RESET_EPHY 0
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#define BCM6348_RESET_ENETSW 0
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#define BCM6348_RESET_PCM 0
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#define BCM6348_RESET_MPI 0
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#define BCM6348_RESET_PCIE 0
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#define BCM6348_RESET_PCIE_EXT 0
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#define BCM6358_RESET_SPI SOFTRESET_6358_SPI_MASK
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#define BCM6358_RESET_ENET SOFTRESET_6358_ENET_MASK
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#define BCM6358_RESET_USBH SOFTRESET_6358_USBH_MASK
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#define BCM6358_RESET_USBD 0
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#define BCM6358_RESET_DSL SOFTRESET_6358_ADSL_MASK
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#define BCM6358_RESET_SAR SOFTRESET_6358_SAR_MASK
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#define BCM6358_RESET_EPHY SOFTRESET_6358_EPHY_MASK
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#define BCM6358_RESET_ENETSW 0
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#define BCM6358_RESET_PCM SOFTRESET_6358_PCM_MASK
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#define BCM6358_RESET_MPI SOFTRESET_6358_MPI_MASK
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#define BCM6358_RESET_PCIE 0
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#define BCM6358_RESET_PCIE_EXT 0
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#define BCM6362_RESET_SPI SOFTRESET_6362_SPI_MASK
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#define BCM6362_RESET_ENET 0
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#define BCM6362_RESET_USBH SOFTRESET_6362_USBH_MASK
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#define BCM6362_RESET_USBD SOFTRESET_6362_USBS_MASK
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#define BCM6362_RESET_DSL 0
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#define BCM6362_RESET_SAR SOFTRESET_6362_SAR_MASK
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#define BCM6362_RESET_EPHY SOFTRESET_6362_EPHY_MASK
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#define BCM6362_RESET_ENETSW SOFTRESET_6362_ENETSW_MASK
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#define BCM6362_RESET_PCM SOFTRESET_6362_PCM_MASK
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#define BCM6362_RESET_MPI 0
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#define BCM6362_RESET_PCIE (SOFTRESET_6362_PCIE_MASK | \
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SOFTRESET_6362_PCIE_CORE_MASK)
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#define BCM6362_RESET_PCIE_EXT SOFTRESET_6362_PCIE_EXT_MASK
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#define BCM6368_RESET_SPI SOFTRESET_6368_SPI_MASK
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#define BCM6368_RESET_ENET 0
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#define BCM6368_RESET_USBH SOFTRESET_6368_USBH_MASK
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#define BCM6368_RESET_USBD SOFTRESET_6368_USBS_MASK
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#define BCM6368_RESET_DSL 0
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#define BCM6368_RESET_SAR SOFTRESET_6368_SAR_MASK
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#define BCM6368_RESET_EPHY SOFTRESET_6368_EPHY_MASK
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#define BCM6368_RESET_ENETSW 0
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#define BCM6368_RESET_PCM SOFTRESET_6368_PCM_MASK
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#define BCM6368_RESET_MPI SOFTRESET_6368_MPI_MASK
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#define BCM6368_RESET_PCIE 0
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#define BCM6368_RESET_PCIE_EXT 0
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/*
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* core reset bits
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*/
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static const u32 bcm3368_reset_bits[] = {
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__GEN_RESET_BITS_TABLE(3368)
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};
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static const u32 bcm6328_reset_bits[] = {
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__GEN_RESET_BITS_TABLE(6328)
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};
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static const u32 bcm6338_reset_bits[] = {
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__GEN_RESET_BITS_TABLE(6338)
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};
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static const u32 bcm6348_reset_bits[] = {
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__GEN_RESET_BITS_TABLE(6348)
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};
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static const u32 bcm6358_reset_bits[] = {
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__GEN_RESET_BITS_TABLE(6358)
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};
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static const u32 bcm6362_reset_bits[] = {
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__GEN_RESET_BITS_TABLE(6362)
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};
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static const u32 bcm6368_reset_bits[] = {
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__GEN_RESET_BITS_TABLE(6368)
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};
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const u32 *bcm63xx_reset_bits;
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static int reset_reg;
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static int __init bcm63xx_reset_bits_init(void)
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{
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if (BCMCPU_IS_3368()) {
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reset_reg = PERF_SOFTRESET_6358_REG;
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bcm63xx_reset_bits = bcm3368_reset_bits;
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} else if (BCMCPU_IS_6328()) {
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reset_reg = PERF_SOFTRESET_6328_REG;
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bcm63xx_reset_bits = bcm6328_reset_bits;
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} else if (BCMCPU_IS_6338()) {
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reset_reg = PERF_SOFTRESET_REG;
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bcm63xx_reset_bits = bcm6338_reset_bits;
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} else if (BCMCPU_IS_6348()) {
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reset_reg = PERF_SOFTRESET_REG;
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bcm63xx_reset_bits = bcm6348_reset_bits;
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} else if (BCMCPU_IS_6358()) {
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reset_reg = PERF_SOFTRESET_6358_REG;
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bcm63xx_reset_bits = bcm6358_reset_bits;
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} else if (BCMCPU_IS_6362()) {
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reset_reg = PERF_SOFTRESET_6362_REG;
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bcm63xx_reset_bits = bcm6362_reset_bits;
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} else if (BCMCPU_IS_6368()) {
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reset_reg = PERF_SOFTRESET_6368_REG;
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bcm63xx_reset_bits = bcm6368_reset_bits;
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}
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return 0;
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}
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static DEFINE_SPINLOCK(reset_mutex);
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static void __bcm63xx_core_set_reset(u32 mask, int enable)
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{
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unsigned long flags;
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u32 val;
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if (!mask)
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return;
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spin_lock_irqsave(&reset_mutex, flags);
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val = bcm_perf_readl(reset_reg);
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if (enable)
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val &= ~mask;
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else
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val |= mask;
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bcm_perf_writel(val, reset_reg);
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spin_unlock_irqrestore(&reset_mutex, flags);
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}
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void bcm63xx_core_set_reset(enum bcm63xx_core_reset core, int reset)
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{
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__bcm63xx_core_set_reset(bcm63xx_reset_bits[core], reset);
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}
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EXPORT_SYMBOL(bcm63xx_core_set_reset);
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postcore_initcall(bcm63xx_reset_bits_init);
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