mirror of
https://github.com/openhwgroup/cvw
synced 2025-01-24 05:24:49 +00:00
Merge pull request #994 from JacobPease/main
Removed axi sdc stuff from the Linux directory.
This commit is contained in:
commit
9bbf2a9375
@ -17,12 +17,6 @@ endif
|
||||
WALLYBOARDSRC := $(WALLYLINUX)/buildroot-config-src/wally
|
||||
WALLYBOARD := $(BUILDROOT)/board/wally
|
||||
|
||||
# Buildroot Package Stuff
|
||||
PACKAGE_SOURCE := ${WALLYLINUX}/buildroot-packages/package-source
|
||||
FPGA_AXI_SDC := ${WALLYLINUX}/buildroot-packages/fpga-axi-sdc
|
||||
DRIVER := ${PACKAGE_SOURCE}/fpga-axi-sdc.c
|
||||
PATCHFILE := $(BRPACKAGES)/package-2023.05.1.patch
|
||||
|
||||
# Device tree files
|
||||
DTS ?= $(shell find devicetree -type f -regex ".*\.dts" | sort)
|
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DTB := $(DTS:%.dts=%.dtb)
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@ -114,15 +108,6 @@ $(WALLYBOARD): $(BUILDROOT)
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cp $(BR2023)/main.config $(WALLYBOARD)/main.config
|
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cp $(BR2023)/linux.config $(WALLYBOARD)/linux.config
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|
||||
# Buildroot Package ---------------------------------------------------
|
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$(BUILDROOT)/package/fpga-axi-sdc: $(BUILDROOT) $(PATCHFILE) $(BRPACKAGES)/fpga-axi-sdc
|
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cp -r $(BRPACKAGES)/fpga-axi-sdc $(BUILDROOT)/package
|
||||
sed -i 's|FPGA_AXI_SDC_SITE =|FPGA_AXI_SDC_SITE = $(PACKAGE_SOURCE)|1' $(BUILDROOT)/package/fpga-axi-sdc/fpga-axi-sdc.mk
|
||||
cd $(BUILDROOT); if git apply --check $(PATCHFILE) > /dev/null ; then git apply $(PATCHFILE); fi
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||||
|
||||
$(PATCHFILE):
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cd $(BUILDROOT); git apply $(PATCHFILE)
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$(BUILDROOT):
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git clone https://github.com/buildroot/buildroot.git $@
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cd $@; git checkout 2023.05.x
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|
@ -1,6 +1,6 @@
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#
|
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# Automatically generated file; DO NOT EDIT.
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# Buildroot 2023.05.3-dirty Configuration
|
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# Buildroot 2023.05.3 Configuration
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#
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BR2_HAVE_DOT_CONFIG=y
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BR2_HOST_GCC_AT_LEAST_4_9=y
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||||
@ -949,7 +949,6 @@ BR2_PACKAGE_SDL_FBCON=y
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BR2_PACKAGE_FLASHROM_ARCH_SUPPORTS=y
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# BR2_PACKAGE_FLASHROM is not set
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# BR2_PACKAGE_FMTOOLS is not set
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BR2_PACKAGE_FPGA_AXI_SDC=y
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# BR2_PACKAGE_FREEIPMI is not set
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# BR2_PACKAGE_FXLOAD is not set
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# BR2_PACKAGE_GPM is not set
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|
@ -1,6 +0,0 @@
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config BR2_PACKAGE_FPGA_AXI_SDC
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bool "FPGA AXI SDC"
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help
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The Vivado-RISC-V SDC Drivers.
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https://www.github.com/eugene-tarassov/vivado-risc-v
|
@ -1,10 +0,0 @@
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FPGA_AXI_SDC_MODULE_VERSION = 1.0
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# TODO This variable needs to change based on where the package
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# contents are stored on each individual computer. Might parameterize
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# this somehow.
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FPGA_AXI_SDC_SITE =
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FPGA_AXI_SDC_SITE_METHOD = local
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FPGA_AXI_SDC_LICENSE = GPLv2
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$(eval $(kernel-module))
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$(eval $(generic-package))
|
File diff suppressed because it is too large
Load Diff
@ -1,12 +0,0 @@
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diff --git a/package/Config.in b/package/Config.in
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index ad438667d2..810bf0897e 100644
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--- a/package/Config.in
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+++ b/package/Config.in
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@@ -503,6 +503,7 @@ endmenu
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source "package/fconfig/Config.in"
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source "package/flashrom/Config.in"
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source "package/fmtools/Config.in"
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+ source "package/fpga-axi-sdc/Config.in"
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source "package/freeipmi/Config.in"
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source "package/freescale-imx/Config.in"
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source "package/fxload/Config.in"
|
@ -1,9 +0,0 @@
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||||
.PHONY: all clean
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obj-m += fpga-axi-sdc.o
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all:
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$(MAKE) -C '$(LINUX-DIR)' M='$(PWD)' modules
|
||||
$(MAKE) -C '$(LINUX-DIR)' M='$(PWD)' modules_install
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|
||||
clean:
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$(MAKE) -C '$(LINUX-DIR)' M='$(PWD)' clean
|
@ -1,496 +0,0 @@
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||||
// SPDX-License-Identifier: GPL-2.0-only
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||||
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#include <linux/delay.h>
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#include <linux/dma-mapping.h>
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#include <linux/err.h>
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#include <linux/module.h>
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||||
#include <linux/init.h>
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#include <linux/iopoll.h>
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#include <linux/platform_device.h>
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#include <linux/clk.h>
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#include <linux/io.h>
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#include <linux/of.h>
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#include <linux/of_device.h>
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#include <linux/pinctrl/consumer.h>
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#include <linux/regulator/consumer.h>
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#include <linux/reset.h>
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#include <linux/mmc/card.h>
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#include <linux/mmc/host.h>
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#include <linux/mmc/mmc.h>
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#include <linux/mmc/slot-gpio.h>
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#include <linux/ktime.h>
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/*
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* AXI SD Card driver.
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*
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* AXI SD Card is open source Verilog implementation of high speed SD card controller.
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* It is mainly used in FPGA designs.
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*/
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#ifdef CONFIG_DEBUG_INFO
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#pragma GCC optimize("O0")
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#endif
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// Capability bits
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#define SDC_CAPABILITY_SD_4BIT 0x0001
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#define SDC_CAPABILITY_SD_RESET 0x0002
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#define SDC_CAPABILITY_ADDR 0xff00
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// Control bits
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#define SDC_CONTROL_SD_4BIT 0x0001
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#define SDC_CONTROL_SD_RESET 0x0002
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// Card detect bits
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#define SDC_CARD_INSERT_INT_EN 0x0001
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#define SDC_CARD_INSERT_INT_REQ 0x0002
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#define SDC_CARD_REMOVE_INT_EN 0x0004
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#define SDC_CARD_REMOVE_INT_REQ 0x0008
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// Command status bits
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#define SDC_CMD_INT_STATUS_CC 0x0001 // Command complete
|
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#define SDC_CMD_INT_STATUS_EI 0x0002 // Any error
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#define SDC_CMD_INT_STATUS_CTE 0x0004 // Timeout
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#define SDC_CMD_INT_STATUS_CCRC 0x0008 // CRC error
|
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#define SDC_CMD_INT_STATUS_CIE 0x0010 // Command code check error
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// Data status bits
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#define SDC_DAT_INT_STATUS_TRS 0x0001 // Transfer complete
|
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#define SDC_DAT_INT_STATUS_ERR 0x0002 // Any error
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#define SDC_DAT_INT_STATUS_CTE 0x0004 // Timeout
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#define SDC_DAT_INT_STATUS_CRC 0x0008 // CRC error
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#define SDC_DAT_INT_STATUS_CFE 0x0010 // Data FIFO underrun or overrun
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#define CMD_TIMEOUT_MS 1000
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#define BUSY_TIMEOUT_MS 500
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struct sdc_regs {
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volatile uint32_t argument;
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volatile uint32_t command;
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volatile uint32_t response1;
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volatile uint32_t response2;
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volatile uint32_t response3;
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volatile uint32_t response4;
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volatile uint32_t data_timeout;
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volatile uint32_t control;
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volatile uint32_t cmd_timeout;
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volatile uint32_t clock_divider;
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volatile uint32_t software_reset;
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volatile uint32_t power_control;
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volatile uint32_t capability;
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volatile uint32_t cmd_int_status;
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volatile uint32_t cmd_int_enable;
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volatile uint32_t dat_int_status;
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volatile uint32_t dat_int_enable;
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volatile uint32_t block_size;
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volatile uint32_t block_count;
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volatile uint32_t card_detect;
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volatile uint32_t res_50;
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volatile uint32_t res_54;
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volatile uint32_t res_58;
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volatile uint32_t res_5c;
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volatile uint64_t dma_addres;
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};
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struct sdc_host {
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struct platform_device * pdev;
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struct sdc_regs __iomem * regs;
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uint32_t clk_freq;
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spinlock_t lock;
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struct mmc_request * mrq;
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struct mmc_data * data;
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unsigned dma_addr_bits;
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unsigned dma_count;
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dma_addr_t dma_addr;
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unsigned dma_size;
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int irq;
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};
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static const struct of_device_id axi_sdc_of_match_table[] = {
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{ .compatible = "riscv,axi-sd-card-1.0" },
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{},
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};
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MODULE_DEVICE_TABLE(of, axi_sdc_of_match_table);
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/* Set clock prescalar value based on the required clock in HZ */
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static void sdc_set_clock(struct sdc_host * host, uint clock) {
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unsigned clk_div;
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/* Min clock frequency should be 400KHz */
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if (clock < 400000) clock = 400000;
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clk_div = host->clk_freq / (2 * clock);
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if (clk_div > 0x100) clk_div = 0x100;
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if (clk_div < 1) clk_div = 1;
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if (host->regs->clock_divider != clk_div - 1) {
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host->regs->clock_divider = clk_div - 1;
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udelay(10000);
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}
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}
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static void sdc_cmd_finish(struct sdc_host * host, struct mmc_command * cmd) {
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while (1) {
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unsigned status = host->regs->cmd_int_status;
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if (status) {
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// clear interrupts
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host->regs->cmd_int_status = 0;
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while (host->regs->software_reset != 0) {}
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if (status == SDC_CMD_INT_STATUS_CC) {
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// get response
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cmd->resp[0] = host->regs->response1;
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if (cmd->flags & MMC_RSP_136) {
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cmd->resp[1] = host->regs->response2;
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cmd->resp[2] = host->regs->response3;
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cmd->resp[3] = host->regs->response4;
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}
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break;
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}
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cmd->error = (status & SDC_CMD_INT_STATUS_CTE) ? -ETIME : -EIO;
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break;
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}
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}
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}
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static int sdc_setup_data_xfer(struct sdc_host * host, struct mmc_host * mmc, struct mmc_data * data) {
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uint64_t timeout = 0;
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data->bytes_xfered = 0;
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if (host->dma_addr & 3) return -EINVAL;
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if (data->blksz & 3) return -EINVAL;
|
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if (data->blksz < 4) return -EINVAL;
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if (data->blksz > 0x1000) return -EINVAL;
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if (data->blocks > 0x10000) return -EINVAL;
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if (host->dma_addr + data->blksz * data->blocks > ((uint64_t)1 << host->dma_addr_bits)) return -EINVAL;
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if (data->sg->length < data->blksz * data->blocks) return -EINVAL;
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// SD card data transfer time
|
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timeout += data->blocks * data->blksz * 8 / (1 << mmc->ios.bus_width);
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// SD card "busy" time
|
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timeout += (uint64_t)mmc->ios.clock * BUSY_TIMEOUT_MS / 1000 * data->blocks;
|
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|
||||
host->regs->dma_addres = (uint64_t)host->dma_addr;
|
||||
host->regs->block_size = data->blksz - 1;
|
||||
host->regs->block_count = data->blocks - 1;
|
||||
host->regs->data_timeout = (uint32_t)timeout;
|
||||
if (host->regs->data_timeout != timeout) host->regs->data_timeout = 0;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int sdc_send_cmd(struct sdc_host * host, struct mmc_host * mmc, struct mmc_command * cmd, struct mmc_data * data) {
|
||||
int command = cmd->opcode << 8;
|
||||
uint64_t timeout = 0;
|
||||
int xfer = 0;
|
||||
|
||||
if (cmd->flags & MMC_RSP_PRESENT) {
|
||||
if (cmd->flags & MMC_RSP_136)
|
||||
command |= 2;
|
||||
else {
|
||||
command |= 1;
|
||||
}
|
||||
}
|
||||
if (cmd->flags & MMC_RSP_BUSY) command |= 1 << 2;
|
||||
if (cmd->flags & MMC_RSP_CRC) command |= 1 << 3;
|
||||
if (cmd->flags & MMC_RSP_OPCODE) command |= 1 << 4;
|
||||
|
||||
if (data && (data->flags & (MMC_DATA_READ | MMC_DATA_WRITE)) && data->blocks) {
|
||||
host->dma_count = dma_map_sg(&host->pdev->dev, data->sg, data->sg_len, mmc_get_dma_dir(data));
|
||||
if (host->dma_count != 1) {
|
||||
dma_unmap_sg(&host->pdev->dev, data->sg, data->sg_len, mmc_get_dma_dir(data));
|
||||
return data->error = -EIO;
|
||||
}
|
||||
host->dma_addr = sg_dma_address(data->sg);
|
||||
host->dma_size = sg_dma_len(data->sg);
|
||||
if (data->flags & MMC_DATA_READ) command |= 1 << 5;
|
||||
if (data->flags & MMC_DATA_WRITE) command |= 1 << 6;
|
||||
data->error = sdc_setup_data_xfer(host, mmc, data);
|
||||
if (data->error < 0) {
|
||||
dma_unmap_sg(&host->pdev->dev, data->sg, data->sg_len, mmc_get_dma_dir(data));
|
||||
return data->error;
|
||||
}
|
||||
xfer = 1;
|
||||
}
|
||||
|
||||
timeout = (uint64_t)mmc->ios.clock * CMD_TIMEOUT_MS / 1000;
|
||||
|
||||
host->regs->command = command;
|
||||
host->regs->cmd_timeout = (uint32_t)timeout;
|
||||
if (host->regs->cmd_timeout != timeout) host->regs->cmd_timeout = 0;
|
||||
host->regs->argument = cmd->arg;
|
||||
|
||||
sdc_cmd_finish(host, cmd);
|
||||
if (cmd->error < 0) {
|
||||
if (xfer) dma_unmap_sg(&host->pdev->dev, data->sg, data->sg_len, mmc_get_dma_dir(data));
|
||||
return cmd->error;
|
||||
}
|
||||
if (xfer) host->data = data;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void sdc_request(struct mmc_host * mmc, struct mmc_request * mrq) {
|
||||
struct sdc_host * host = mmc_priv(mmc);
|
||||
|
||||
/* Clear the error statuses in case this is a retry */
|
||||
if (mrq->sbc) mrq->sbc->error = 0;
|
||||
if (mrq->cmd) mrq->cmd->error = 0;
|
||||
if (mrq->data) mrq->data->error = 0;
|
||||
if (mrq->stop) mrq->stop->error = 0;
|
||||
|
||||
spin_lock_irq(&host->lock);
|
||||
host->data = NULL;
|
||||
host->mrq = mrq;
|
||||
|
||||
if (!mrq->sbc || sdc_send_cmd(host, mmc, mrq->sbc, NULL) == 0) {
|
||||
sdc_send_cmd(host, mmc, mrq->cmd, mrq->data);
|
||||
}
|
||||
|
||||
if (host->data == NULL) {
|
||||
mmc_request_done(mmc, mrq);
|
||||
host->mrq = NULL;
|
||||
}
|
||||
else {
|
||||
host->regs->dat_int_enable = SDC_DAT_INT_STATUS_TRS | SDC_DAT_INT_STATUS_ERR;
|
||||
}
|
||||
|
||||
spin_unlock_irq(&host->lock);
|
||||
}
|
||||
|
||||
static void sdc_set_ios(struct mmc_host * mmc, struct mmc_ios * ios) {
|
||||
struct sdc_host * host = mmc_priv(mmc);
|
||||
|
||||
spin_lock_irq(&host->lock);
|
||||
|
||||
sdc_set_clock(host, ios->clock);
|
||||
host->regs->control = ios->bus_width == MMC_BUS_WIDTH_4 ? SDC_CONTROL_SD_4BIT : 0;
|
||||
|
||||
spin_unlock_irq(&host->lock);
|
||||
}
|
||||
|
||||
static void sdc_reset(struct mmc_host * mmc) {
|
||||
struct sdc_host * host = mmc_priv(mmc);
|
||||
uint32_t card_detect = 0;
|
||||
|
||||
spin_lock_init(&host->lock);
|
||||
|
||||
spin_lock_irq(&host->lock);
|
||||
|
||||
sdc_set_clock(host, 400000);
|
||||
|
||||
// software reset
|
||||
host->regs->software_reset = 1;
|
||||
while ((host->regs->software_reset & 1) == 0) {}
|
||||
// clear software reset
|
||||
host->regs->software_reset = 0;
|
||||
while (host->regs->software_reset != 0) {}
|
||||
udelay(10000);
|
||||
|
||||
// set bus width 1 bit
|
||||
host->regs->control = 0;
|
||||
|
||||
// disable cmd/data interrupts
|
||||
host->regs->cmd_int_enable = 0;
|
||||
host->regs->dat_int_enable = 0;
|
||||
// clear cmd/data interrupts
|
||||
host->regs->cmd_int_status = 0;
|
||||
host->regs->dat_int_status = 0;
|
||||
// enable card detect interrupt
|
||||
card_detect = host->regs->card_detect;
|
||||
if (card_detect & SDC_CARD_INSERT_INT_REQ) {
|
||||
host->regs->card_detect = SDC_CARD_REMOVE_INT_EN;
|
||||
}
|
||||
else if (card_detect & SDC_CARD_REMOVE_INT_REQ) {
|
||||
host->regs->card_detect = SDC_CARD_INSERT_INT_EN;
|
||||
}
|
||||
while (host->regs->software_reset != 0) {}
|
||||
|
||||
spin_unlock_irq(&host->lock);
|
||||
}
|
||||
|
||||
static void sdc_card_reset(struct mmc_host * mmc) {
|
||||
struct sdc_host * host = mmc_priv(mmc);
|
||||
uint32_t control = 0;
|
||||
|
||||
spin_lock_irq(&host->lock);
|
||||
|
||||
control = host->regs->control;
|
||||
host->regs->control = control | SDC_CONTROL_SD_RESET;
|
||||
udelay(10);
|
||||
host->regs->control = control & ~(uint32_t)SDC_CONTROL_SD_RESET;
|
||||
udelay(10);
|
||||
|
||||
spin_unlock_irq(&host->lock);
|
||||
}
|
||||
|
||||
static int sdc_get_cd(struct mmc_host * mmc) {
|
||||
struct sdc_host * host = mmc_priv(mmc);
|
||||
uint32_t card_detect = host->regs->card_detect;
|
||||
if (card_detect == 0) return 1; /* Card detect not supported */
|
||||
return (card_detect & SDC_CARD_INSERT_INT_REQ) != 0;
|
||||
}
|
||||
|
||||
static irqreturn_t sdc_isr(int irq, void * dev_id) {
|
||||
struct mmc_host * mmc = (struct mmc_host *)dev_id;
|
||||
struct sdc_host * host = mmc_priv(mmc);
|
||||
uint32_t card_detect = 0;
|
||||
uint32_t data_status = 0;
|
||||
unsigned long flags;
|
||||
|
||||
spin_lock_irqsave(&host->lock, flags);
|
||||
|
||||
card_detect = host->regs->card_detect;
|
||||
if (card_detect & SDC_CARD_INSERT_INT_REQ) {
|
||||
if (card_detect & SDC_CARD_INSERT_INT_EN) {
|
||||
host->regs->card_detect = SDC_CARD_REMOVE_INT_EN;
|
||||
mmc_detect_change(mmc, 0);
|
||||
}
|
||||
}
|
||||
else if (card_detect & SDC_CARD_REMOVE_INT_REQ) {
|
||||
if (card_detect & SDC_CARD_REMOVE_INT_EN) {
|
||||
host->regs->card_detect = SDC_CARD_INSERT_INT_EN;
|
||||
mmc_detect_change(mmc, 0);
|
||||
}
|
||||
}
|
||||
|
||||
if ((data_status = host->regs->dat_int_status) != 0) {
|
||||
host->regs->dat_int_enable = 0;
|
||||
host->regs->dat_int_status = 0;
|
||||
while (host->regs->software_reset != 0) {}
|
||||
if (host->data) {
|
||||
struct mmc_request * mrq = host->mrq;
|
||||
struct mmc_data * data = host->data;
|
||||
if (data_status == SDC_DAT_INT_STATUS_TRS) {
|
||||
data->bytes_xfered = data->blksz * data->blocks;
|
||||
}
|
||||
else {
|
||||
data->error = -EIO;
|
||||
if (data_status & SDC_DAT_INT_STATUS_CTE) data->error = -ETIME;
|
||||
}
|
||||
if (mrq->stop) sdc_send_cmd(host, mmc, mrq->stop, NULL);
|
||||
mmc_request_done(mmc, mrq);
|
||||
dma_unmap_sg(&host->pdev->dev, data->sg, data->sg_len, mmc_get_dma_dir(data));
|
||||
host->data = NULL;
|
||||
host->mrq = NULL;
|
||||
}
|
||||
}
|
||||
|
||||
spin_unlock_irqrestore(&host->lock, flags);
|
||||
return IRQ_HANDLED;
|
||||
}
|
||||
|
||||
/*---------------------------------------------------------------------*/
|
||||
|
||||
static const struct mmc_host_ops axi_sdc_ops = {
|
||||
.request = sdc_request,
|
||||
.set_ios = sdc_set_ios,
|
||||
.get_cd = sdc_get_cd,
|
||||
.card_hw_reset = sdc_card_reset,
|
||||
};
|
||||
|
||||
static int axi_sdc_probe(struct platform_device * pdev) {
|
||||
struct device * dev = &pdev->dev;
|
||||
struct resource * iomem;
|
||||
struct sdc_host * host;
|
||||
struct mmc_host * mmc;
|
||||
void __iomem * ioaddr;
|
||||
uint32_t capability;
|
||||
int irq;
|
||||
int ret;
|
||||
|
||||
iomem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
|
||||
ioaddr = devm_ioremap_resource(dev, iomem);
|
||||
if (IS_ERR(ioaddr)) return PTR_ERR(ioaddr);
|
||||
|
||||
irq = platform_get_irq(pdev, 0);
|
||||
if (irq <= 0) return -ENXIO;
|
||||
|
||||
mmc = mmc_alloc_host(sizeof(*host), dev);
|
||||
if (!mmc) return -ENOMEM;
|
||||
|
||||
mmc->ops = &axi_sdc_ops;
|
||||
host = mmc_priv(mmc);
|
||||
host->pdev = pdev;
|
||||
host->regs = (struct sdc_regs __iomem *)ioaddr;
|
||||
host->irq = irq;
|
||||
|
||||
ret = of_property_read_u32(dev->of_node, "clock", &host->clk_freq);
|
||||
if (ret) host->clk_freq = 100000000;
|
||||
|
||||
ret = mmc_of_parse(mmc);
|
||||
if (ret) {
|
||||
mmc_free_host(mmc);
|
||||
return ret;
|
||||
}
|
||||
|
||||
if (mmc->f_min == 0) mmc->f_min = host->clk_freq / 0x200; /* maximum clock division 256 * 2 */
|
||||
if (mmc->f_max == 0) mmc->f_max = host->clk_freq / 2; /* minimum clock division 2 */
|
||||
if ((mmc->caps2 & MMC_CAP2_NO_SDIO) == 0) {
|
||||
/* TODO: deprecated 10/19/2022, set in DTS */
|
||||
mmc->caps |= MMC_CAP_SD_HIGHSPEED | MMC_CAP_MMC_HIGHSPEED;
|
||||
mmc->caps2 |= MMC_CAP2_NO_SDIO;
|
||||
}
|
||||
mmc->ocr_avail = MMC_VDD_32_33 | MMC_VDD_33_34;
|
||||
mmc->max_segs = 1;
|
||||
mmc->max_req_size = 0x2000000;
|
||||
mmc->max_seg_size = 0x2000000;
|
||||
mmc->max_blk_size = 0x1000;
|
||||
mmc->max_blk_count = 0x10000;
|
||||
|
||||
ret = request_irq(host->irq, sdc_isr, IRQF_TRIGGER_HIGH, "fpga-axi-sdc", mmc);
|
||||
if (ret) {
|
||||
mmc_free_host(mmc);
|
||||
return ret;
|
||||
}
|
||||
|
||||
host->dma_addr_bits = 32;
|
||||
capability = host->regs->capability;
|
||||
if (capability & SDC_CAPABILITY_ADDR) {
|
||||
host->dma_addr_bits = (capability & SDC_CAPABILITY_ADDR) >> __builtin_ctz(SDC_CAPABILITY_ADDR);
|
||||
ret = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(host->dma_addr_bits));
|
||||
if (ret) {
|
||||
printk(KERN_ERR "AXI-SDC: Can't set DMA mask\n");
|
||||
mmc_free_host(mmc);
|
||||
return ret;
|
||||
}
|
||||
}
|
||||
|
||||
sdc_reset(mmc);
|
||||
|
||||
ret = mmc_add_host(mmc);
|
||||
if (ret) {
|
||||
printk(KERN_ERR "AXI-SDC: Can't register device\n");
|
||||
mmc_free_host(mmc);
|
||||
return ret;
|
||||
}
|
||||
|
||||
//spin_lock_init(&host->lock);
|
||||
|
||||
platform_set_drvdata(pdev, host);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int axi_sdc_remove(struct platform_device * pdev) {
|
||||
struct sdc_host * host = platform_get_drvdata(pdev);
|
||||
struct mmc_host * mmc = mmc_from_priv(host);
|
||||
|
||||
free_irq(host->irq, mmc);
|
||||
mmc_remove_host(mmc);
|
||||
mmc_free_host(mmc);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct platform_driver axi_sdc_driver = {
|
||||
.driver = {
|
||||
.name = "riscv-axi-sdc",
|
||||
.of_match_table = axi_sdc_of_match_table,
|
||||
},
|
||||
.probe = axi_sdc_probe,
|
||||
.remove = axi_sdc_remove,
|
||||
};
|
||||
|
||||
module_platform_driver(axi_sdc_driver);
|
||||
|
||||
MODULE_DESCRIPTION("AXI SD Card driver");
|
||||
MODULE_AUTHOR("Eugene Tarassov");
|
||||
MODULE_LICENSE("GPL v2");
|
@ -1,12 +0,0 @@
|
||||
diff --git a/package/Config.in b/package/Config.in
|
||||
index 82b28d2835..29e8bb66ac 100644
|
||||
--- a/package/Config.in
|
||||
+++ b/package/Config.in
|
||||
@@ -469,6 +469,7 @@ endmenu
|
||||
source "package/fconfig/Config.in"
|
||||
source "package/flashrom/Config.in"
|
||||
source "package/fmtools/Config.in"
|
||||
+ source "package/fpga-axi-sdc/Config.in"
|
||||
source "package/freescale-imx/Config.in"
|
||||
source "package/fxload/Config.in"
|
||||
source "package/gcnano-binaries/Config.in"
|
File diff suppressed because it is too large
Load Diff
Loading…
Reference in New Issue
Block a user