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Simple PCIe FMC carrier SPEC - Software
Commit 3dfdab04 authored by Alessandro Rubini's avatar Alessandro Rubini
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spec-i2c: use sysc registers, remove FD registers

parent 5dd25dcc
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Showing with 8 additions and 480 deletions
kernel/hw/fd_main_regs.h deleted 100644 → 0
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kernel/spec-i2c.c
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......@@ -17,7 +17,7 @@
#include <linux/slab.h>
#include <linux/fmc.h>
#include "spec.h"
#include "hw/fd_main_regs.h"
#include "hw/wrc_syscon_regs.h"
static int spec_i2c_dump;
......@@ -45,27 +45,23 @@ static void dumpstruct(char *name, void *ptr, int size)
static void set_sda(struct fmc_device *fmc, int val)
{
uint32_t reg;
reg = fmc_readl(fmc, FD_REG_I2CR) & ~FD_I2CR_SDA_OUT;
if (val)
reg |= FD_I2CR_SDA_OUT;
fmc_writel(fmc, reg, FD_REG_I2CR);
fmc_writel(fmc, SYSC_GPSR_FMC_SDA, SYSC_REG_GPSR);
else
fmc_writel(fmc, SYSC_GPCR_FMC_SDA, SYSC_REG_GPCR);
}
static void set_scl(struct fmc_device *fmc, int val)
{
uint32_t reg;
reg = fmc_readl(fmc, FD_REG_I2CR) & ~FD_I2CR_SCL_OUT;
if (val)
reg |= FD_I2CR_SCL_OUT;
fmc_writel(fmc, reg, FD_REG_I2CR);
fmc_writel(fmc, SYSC_GPSR_FMC_SCL, SYSC_REG_GPSR);
else
fmc_writel(fmc, SYSC_GPCR_FMC_SCL, SYSC_REG_GPCR);
}
static int get_sda(struct fmc_device *fmc)
{
return fmc_readl(fmc, FD_REG_I2CR) & FD_I2CR_SDA_IN ? 1 : 0;
return fmc_readl(fmc, SYSC_REG_GPSR) & SYSC_GPSR_FMC_SDA ? 1 : 0;
};
static void mi2c_start(struct fmc_device *fmc)
......
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