leandrof/u-boot
1
0
Fork 1
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Merge branch 'master' of git://git.denx.de/u-boot-spi

Browse Source
This commit is contained in:
Tom Rini
2017-01-15 13:33:30 -05:00
parent cc422dae21 68e7999ba9
commit 035ebf85b0
8 changed files with 0 additions and 757 deletions
Download Patch File Download Diff File Expand all files Collapse all files

98
board/cirrus/edb93xx/edb93xx.c
View File

@@ -282,101 +282,3 @@ int dram_init(void)
gd->ram_size = dram_init_banksize_int(1);
return 0;
}
#ifdef CONFIG_EP93XX_SPI
#include <spi.h>
/*
* EGIO0-EGIPO7 -> port A
* EGIO8-EGIP15 -> port B
*/
static void ep93xx_set_epgio(unsigned num)
{
struct gpio_regs *regs = (struct gpio_regs *)GPIO_BASE;
if (num < 8)
writel(readl(&regs->padr) | (1<<num), &regs->padr);
else
writel(readl(&regs->pbdr) | (1<<(num-8)), &regs->pbdr);
}
static void ep93xx_clear_epgio(unsigned num)
{
struct gpio_regs *regs = (struct gpio_regs *)GPIO_BASE;
if (num < 8)
writel(readl(&regs->padr) & (~(1<<num)), &regs->padr);
else
writel(readl(&regs->pbdr) & (~(1<<(num-8))), &regs->pbdr);
}
static void ep93xx_dir_epgio_out(unsigned num)
{
struct gpio_regs *regs = (struct gpio_regs *)GPIO_BASE;
if (num < 8)
writel(readl(&regs->paddr) | (1<<num), &regs->paddr);
else
writel(readl(&regs->pbddr) | (1<<(num-8)), &regs->pbddr);
}
int spi_cs_is_valid(unsigned int bus, unsigned int cs)
{
if (bus == 0 && cs < 16)
return 1;
return 0;
}
void spi_cs_activate(struct spi_slave *slave)
{
ep93xx_clear_epgio(slave->cs);
}
void spi_cs_deactivate(struct spi_slave *slave)
{
ep93xx_set_epgio(slave->cs);
}
#ifdef CONFIG_MMC_SPI
#include <mmc.h>
#ifndef CONFIG_MMC_SPI_CS_EPGIO
# define CONFIG_MMC_SPI_CS_EPGIO 4
#endif
#ifndef CONFIG_MMC_SPI_SPEED
# define CONFIG_MMC_SPI_SPEED 25000000
#endif
#ifndef CONFIG_MMC_SPI_MODE
# define CONFIG_MMC_SPI_MODE SPI_MODE_0
#endif
int board_mmc_init(bd_t *bis)
{
struct gpio_regs *regs = (struct gpio_regs *)GPIO_BASE;
ep93xx_set_epgio(CONFIG_MMC_SPI_CS_EPGIO);
ep93xx_dir_epgio_out(CONFIG_MMC_SPI_CS_EPGIO);
#ifdef CONFIG_MMC_SPI_POWER_EGPIO
ep93xx_dir_epgio_out(CONFIG_MMC_SPI_POWER_EGPIO);
ep93xx_set_epgio(CONFIG_MMC_SPI_POWER_EGPIO);
#elif defined(CONFIG_MMC_SPI_NPOWER_EGPIO)
ep93xx_dir_epgio_out(CONFIG_MMC_SPI_NPOWER_EGPIO);
ep93xx_clear_epgio(CONFIG_MMC_SPI_NPOWER_EGPIO);
#endif
struct mmc *mmc = mmc_spi_init(0, CONFIG_MMC_SPI_CS_EPGIO,
CONFIG_MMC_SPI_SPEED, CONFIG_MMC_SPI_MODE);
if (!mmc) {
printf("Failed to create MMC Device\n");
return 1;
}
mmc_init(mmc);
return 0;
}
#endif /* CONFIG_MMC_SPI */
#endif /* CONFIG_EP93XX_SPI */