mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-06-09 23:36:03 +09:00
83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
93 lines
2.3 KiB
C
93 lines
2.3 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Marvell SD Host Controller Interface
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*/
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#include <common.h>
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#include <malloc.h>
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#include <sdhci.h>
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#include <linux/mbus.h>
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#define SDHCI_WINDOW_CTRL(win) (0x4080 + ((win) << 4))
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#define SDHCI_WINDOW_BASE(win) (0x4084 + ((win) << 4))
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static void sdhci_mvebu_mbus_config(void __iomem *base)
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{
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const struct mbus_dram_target_info *dram;
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int i;
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dram = mvebu_mbus_dram_info();
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for (i = 0; i < 4; i++) {
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writel(0, base + SDHCI_WINDOW_CTRL(i));
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writel(0, base + SDHCI_WINDOW_BASE(i));
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}
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for (i = 0; i < dram->num_cs; i++) {
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const struct mbus_dram_window *cs = dram->cs + i;
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/* Write size, attributes and target id to control register */
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writel(((cs->size - 1) & 0xffff0000) | (cs->mbus_attr << 8) |
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(dram->mbus_dram_target_id << 4) | 1,
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base + SDHCI_WINDOW_CTRL(i));
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/* Write base address to base register */
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writel(cs->base, base + SDHCI_WINDOW_BASE(i));
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}
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}
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#ifdef CONFIG_MMC_SDHCI_IO_ACCESSORS
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static struct sdhci_ops mv_ops;
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#if defined(CONFIG_SHEEVA_88SV331xV5)
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#define SD_CE_ATA_2 0xEA
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#define MMC_CARD 0x1000
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#define MMC_WIDTH 0x0100
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static inline void mv_sdhci_writeb(struct sdhci_host *host, u8 val, int reg)
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{
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struct mmc *mmc = host->mmc;
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u32 ata = (unsigned long)host->ioaddr + SD_CE_ATA_2;
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if (!IS_SD(mmc) && reg == SDHCI_HOST_CONTROL) {
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if (mmc->bus_width == 8)
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writew(readw(ata) | (MMC_CARD | MMC_WIDTH), ata);
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else
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writew(readw(ata) & ~(MMC_CARD | MMC_WIDTH), ata);
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}
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writeb(val, host->ioaddr + reg);
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}
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#else
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#define mv_sdhci_writeb NULL
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#endif /* CONFIG_SHEEVA_88SV331xV5 */
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#endif /* CONFIG_MMC_SDHCI_IO_ACCESSORS */
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static char *MVSDH_NAME = "mv_sdh";
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int mv_sdh_init(unsigned long regbase, u32 max_clk, u32 min_clk, u32 quirks)
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{
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struct sdhci_host *host = NULL;
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host = calloc(1, sizeof(*host));
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if (!host) {
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printf("sdh_host malloc fail!\n");
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return -ENOMEM;
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}
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host->name = MVSDH_NAME;
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host->ioaddr = (void *)regbase;
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host->quirks = quirks;
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host->max_clk = max_clk;
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#ifdef CONFIG_MMC_SDHCI_IO_ACCESSORS
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memset(&mv_ops, 0, sizeof(struct sdhci_ops));
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mv_ops.write_b = mv_sdhci_writeb;
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host->ops = &mv_ops;
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#endif
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if (CONFIG_IS_ENABLED(ARCH_MVEBU)) {
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/* Configure SDHCI MBUS mbus bridge windows */
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sdhci_mvebu_mbus_config((void __iomem *)regbase);
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}
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return add_sdhci(host, 0, min_clk);
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}
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