[people/ms/u-boot.git] / drivers / mmc / mv_sdhci.c

#include <common.h>
#include <malloc.h>
#include <sdhci.h>

#ifdef CONFIG_MMC_SDHCI_IO_ACCESSORS
static struct sdhci_ops mv_ops;

#if defined(CONFIG_SHEEVA_88SV331xV5)
#define SD_CE_ATA_2	0xEA
#define  MMC_CARD	0x1000
#define  MMC_WIDTH	0x0100
static inline void mv_sdhci_writeb(struct sdhci_host *host, u8 val, int reg)
{
	struct mmc *mmc = host->mmc;
	u32 ata = (unsigned long)host->ioaddr + SD_CE_ATA_2;

	if (!IS_SD(mmc) && reg == SDHCI_HOST_CONTROL) {
		if (mmc->bus_width == 8)
			writew(readw(ata) | (MMC_CARD | MMC_WIDTH), ata);
		else
			writew(readw(ata) & ~(MMC_CARD | MMC_WIDTH), ata);
	}

	writeb(val, host->ioaddr + reg);
}

#else
#define mv_sdhci_writeb	NULL
#endif /* CONFIG_SHEEVA_88SV331xV5 */
#endif /* CONFIG_MMC_SDHCI_IO_ACCESSORS */

static char *MVSDH_NAME = "mv_sdh";
int mv_sdh_init(unsigned long regbase, u32 max_clk, u32 min_clk, u32 quirks)
{
	struct sdhci_host *host = NULL;
	host = (struct sdhci_host *)malloc(sizeof(struct sdhci_host));
	if (!host) {
		printf("sdh_host malloc fail!\n");
		return 1;
	}

	host->name = MVSDH_NAME;
	host->ioaddr = (void *)regbase;
	host->quirks = quirks;
#ifdef CONFIG_MMC_SDHCI_IO_ACCESSORS
	memset(&mv_ops, 0, sizeof(struct sdhci_ops));
	mv_ops.write_b = mv_sdhci_writeb;
	host->ops = &mv_ops;
#endif
	if (quirks & SDHCI_QUIRK_REG32_RW)
		host->version = sdhci_readl(host, SDHCI_HOST_VERSION - 2) >> 16;
	else
		host->version = sdhci_readw(host, SDHCI_HOST_VERSION);
	return add_sdhci(host, max_clk, min_clk);
}
Commit	Line	Data
e75787d9 LW	1	#include <common.h>
	2	#include <malloc.h>
	3	#include <sdhci.h>
	4
02d3ad3e LW	5	#ifdef CONFIG_MMC_SDHCI_IO_ACCESSORS
	6	static struct sdhci_ops mv_ops;
	7
	8	#if defined(CONFIG_SHEEVA_88SV331xV5)
	9	#define SD_CE_ATA_2 0xEA
	10	#define MMC_CARD 0x1000
	11	#define MMC_WIDTH 0x0100
	12	static inline void mv_sdhci_writeb(struct sdhci_host *host, u8 val, int reg)
	13	{
	14	struct mmc *mmc = host->mmc;
3a48944b	15	u32 ata = (unsigned long)host->ioaddr + SD_CE_ATA_2;
02d3ad3e LW	16
	17	if (!IS_SD(mmc) && reg == SDHCI_HOST_CONTROL) {
	18	if (mmc->bus_width == 8)
	19	writew(readw(ata) \| (MMC_CARD \| MMC_WIDTH), ata);
	20	else
	21	writew(readw(ata) & ~(MMC_CARD \| MMC_WIDTH), ata);
	22	}
	23
	24	writeb(val, host->ioaddr + reg);
	25	}
	26
	27	#else
	28	#define mv_sdhci_writeb NULL
	29	#endif /* CONFIG_SHEEVA_88SV331xV5 */
	30	#endif /* CONFIG_MMC_SDHCI_IO_ACCESSORS */
	31
e75787d9	32	static char *MVSDH_NAME = "mv_sdh";
3a48944b	33	int mv_sdh_init(unsigned long regbase, u32 max_clk, u32 min_clk, u32 quirks)
e75787d9 LW	34	{
	35	struct sdhci_host *host = NULL;
	36	host = (struct sdhci_host *)malloc(sizeof(struct sdhci_host));
	37	if (!host) {
	38	printf("sdh_host malloc fail!\n");
	39	return 1;
	40	}
	41
	42	host->name = MVSDH_NAME;
	43	host->ioaddr = (void *)regbase;
	44	host->quirks = quirks;
02d3ad3e LW	45	#ifdef CONFIG_MMC_SDHCI_IO_ACCESSORS
02d3ad3e LW	46	memset(&mv_ops, 0, sizeof(struct sdhci_ops));
bfe6f623	47	mv_ops.write_b = mv_sdhci_writeb;
02d3ad3e LW	48	host->ops = &mv_ops;
02d3ad3e LW	49	#endif
5af9a569 AB	50	if (quirks & SDHCI_QUIRK_REG32_RW)
	51	host->version = sdhci_readl(host, SDHCI_HOST_VERSION - 2) >> 16;
	52	else
	53	host->version = sdhci_readw(host, SDHCI_HOST_VERSION);
a68aac49	54	return add_sdhci(host, max_clk, min_clk);
e75787d9	55	}