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70 lines
1.9 KiB
70 lines
1.9 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* Copyright(c) 2009 Ian Molton <[email protected]> |
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*/ |
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#include <linux/export.h> |
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#include <linux/mfd/tmio.h> |
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#define CNF_CMD 0x04 |
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#define CNF_CTL_BASE 0x10 |
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#define CNF_INT_PIN 0x3d |
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#define CNF_STOP_CLK_CTL 0x40 |
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#define CNF_GCLK_CTL 0x41 |
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#define CNF_SD_CLK_MODE 0x42 |
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#define CNF_PIN_STATUS 0x44 |
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#define CNF_PWR_CTL_1 0x48 |
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#define CNF_PWR_CTL_2 0x49 |
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#define CNF_PWR_CTL_3 0x4a |
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#define CNF_CARD_DETECT_MODE 0x4c |
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#define CNF_SD_SLOT 0x50 |
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#define CNF_EXT_GCLK_CTL_1 0xf0 |
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#define CNF_EXT_GCLK_CTL_2 0xf1 |
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#define CNF_EXT_GCLK_CTL_3 0xf9 |
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#define CNF_SD_LED_EN_1 0xfa |
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#define CNF_SD_LED_EN_2 0xfe |
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#define SDCREN 0x2 /* Enable access to MMC CTL regs. (flag in COMMAND_REG)*/ |
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int tmio_core_mmc_enable(void __iomem *cnf, int shift, unsigned long base) |
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{ |
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/* Enable the MMC/SD Control registers */ |
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sd_config_write16(cnf, shift, CNF_CMD, SDCREN); |
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sd_config_write32(cnf, shift, CNF_CTL_BASE, base & 0xfffe); |
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/* Disable SD power during suspend */ |
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sd_config_write8(cnf, shift, CNF_PWR_CTL_3, 0x01); |
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/* The below is required but why? FIXME */ |
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sd_config_write8(cnf, shift, CNF_STOP_CLK_CTL, 0x1f); |
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/* Power down SD bus */ |
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sd_config_write8(cnf, shift, CNF_PWR_CTL_2, 0x00); |
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return 0; |
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} |
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EXPORT_SYMBOL(tmio_core_mmc_enable); |
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int tmio_core_mmc_resume(void __iomem *cnf, int shift, unsigned long base) |
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{ |
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/* Enable the MMC/SD Control registers */ |
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sd_config_write16(cnf, shift, CNF_CMD, SDCREN); |
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sd_config_write32(cnf, shift, CNF_CTL_BASE, base & 0xfffe); |
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return 0; |
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} |
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EXPORT_SYMBOL(tmio_core_mmc_resume); |
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void tmio_core_mmc_pwr(void __iomem *cnf, int shift, int state) |
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{ |
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sd_config_write8(cnf, shift, CNF_PWR_CTL_2, state ? 0x02 : 0x00); |
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} |
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EXPORT_SYMBOL(tmio_core_mmc_pwr); |
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void tmio_core_mmc_clk_div(void __iomem *cnf, int shift, int state) |
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{ |
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sd_config_write8(cnf, shift, CNF_SD_CLK_MODE, state ? 1 : 0); |
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} |
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EXPORT_SYMBOL(tmio_core_mmc_clk_div); |
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