forked from mirrors/linux
mmc: renesas-sdhi: make renesas_sdhi_sys_dmac main module file
Make renesas_sdhi_sys_dmac.c a top-level module file that makes use of library code supplied by renesas_sdhi_core.c This is in order to facilitate adding other variants of SDHI; in particular SDHI using different DMA controllers. Signed-off-by: Simon Horman <horms+renesas@verge.net.au> Acked-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> [Arnd: Fixed module build error] Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Simon Horman
Ulf Hansson
parent
b5b6a5f4f0
commit
9d08428afb
3 changed files with 137 additions and 129 deletions
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@ -12,7 +12,28 @@
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#ifndef RENESAS_SDHI_H
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#define RENESAS_SDHI_H
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#include <linux/platform_device.h>
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#include "tmio_mmc.h"
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const struct tmio_mmc_dma_ops *renesas_sdhi_get_dma_ops(void);
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struct renesas_sdhi_scc {
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unsigned long clk_rate; /* clock rate for SDR104 */
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u32 tap; /* sampling clock position for SDR104 */
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};
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struct renesas_sdhi_of_data {
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unsigned long tmio_flags;
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u32 tmio_ocr_mask;
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unsigned long capabilities;
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unsigned long capabilities2;
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enum dma_slave_buswidth dma_buswidth;
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dma_addr_t dma_rx_offset;
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unsigned bus_shift;
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int scc_offset;
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struct renesas_sdhi_scc *taps;
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int taps_num;
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};
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int renesas_sdhi_probe(struct platform_device *pdev,
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const struct tmio_mmc_dma_ops *dma_ops);
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int renesas_sdhi_remove(struct platform_device *pdev);
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#endif
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@ -1,5 +1,5 @@
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/*
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* SuperH Mobile SDHI
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* Renesas SDHI
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*
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* Copyright (C) 2016 Sang Engineering, Wolfram Sang
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* Copyright (C) 2015-16 Renesas Electronics Corporation
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@ -23,8 +23,6 @@
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#include <linux/kernel.h>
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#include <linux/clk.h>
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#include <linux/slab.h>
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#include <linux/mod_devicetable.h>
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#include <linux/module.h>
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#include <linux/of_device.h>
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#include <linux/platform_device.h>
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#include <linux/mmc/host.h>
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@ -48,100 +46,6 @@
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#define host_to_priv(host) container_of((host)->pdata, struct renesas_sdhi, mmc_data)
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struct renesas_sdhi_scc {
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unsigned long clk_rate; /* clock rate for SDR104 */
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u32 tap; /* sampling clock position for SDR104 */
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};
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struct renesas_sdhi_of_data {
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unsigned long tmio_flags;
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u32 tmio_ocr_mask;
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unsigned long capabilities;
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unsigned long capabilities2;
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enum dma_slave_buswidth dma_buswidth;
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dma_addr_t dma_rx_offset;
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unsigned bus_shift;
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int scc_offset;
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struct renesas_sdhi_scc *taps;
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int taps_num;
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};
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static const struct renesas_sdhi_of_data of_default_cfg = {
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.tmio_flags = TMIO_MMC_HAS_IDLE_WAIT,
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};
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static const struct renesas_sdhi_of_data of_rz_compatible = {
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.tmio_flags = TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_32BIT_DATA_PORT,
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.tmio_ocr_mask = MMC_VDD_32_33,
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.capabilities = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ,
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};
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static const struct renesas_sdhi_of_data of_rcar_gen1_compatible = {
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.tmio_flags = TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_WRPROTECT_DISABLE |
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TMIO_MMC_CLK_ACTUAL,
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.capabilities = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ,
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};
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/* Definitions for sampling clocks */
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static struct renesas_sdhi_scc rcar_gen2_scc_taps[] = {
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{
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.clk_rate = 156000000,
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.tap = 0x00000703,
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},
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{
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.clk_rate = 0,
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.tap = 0x00000300,
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},
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};
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static const struct renesas_sdhi_of_data of_rcar_gen2_compatible = {
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.tmio_flags = TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_WRPROTECT_DISABLE |
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TMIO_MMC_CLK_ACTUAL | TMIO_MMC_MIN_RCAR2,
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.capabilities = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ,
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.dma_buswidth = DMA_SLAVE_BUSWIDTH_4_BYTES,
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.dma_rx_offset = 0x2000,
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.scc_offset = 0x0300,
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.taps = rcar_gen2_scc_taps,
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.taps_num = ARRAY_SIZE(rcar_gen2_scc_taps),
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};
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/* Definitions for sampling clocks */
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static struct renesas_sdhi_scc rcar_gen3_scc_taps[] = {
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{
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.clk_rate = 0,
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.tap = 0x00000300,
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},
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};
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static const struct renesas_sdhi_of_data of_rcar_gen3_compatible = {
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.tmio_flags = TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_WRPROTECT_DISABLE |
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TMIO_MMC_CLK_ACTUAL | TMIO_MMC_MIN_RCAR2,
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.capabilities = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ,
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.bus_shift = 2,
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.scc_offset = 0x1000,
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.taps = rcar_gen3_scc_taps,
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.taps_num = ARRAY_SIZE(rcar_gen3_scc_taps),
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};
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static const struct of_device_id renesas_sdhi_of_match[] = {
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{ .compatible = "renesas,sdhi-shmobile" },
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{ .compatible = "renesas,sdhi-sh73a0", .data = &of_default_cfg, },
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{ .compatible = "renesas,sdhi-r8a73a4", .data = &of_default_cfg, },
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{ .compatible = "renesas,sdhi-r8a7740", .data = &of_default_cfg, },
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{ .compatible = "renesas,sdhi-r7s72100", .data = &of_rz_compatible, },
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{ .compatible = "renesas,sdhi-r8a7778", .data = &of_rcar_gen1_compatible, },
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{ .compatible = "renesas,sdhi-r8a7779", .data = &of_rcar_gen1_compatible, },
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{ .compatible = "renesas,sdhi-r8a7790", .data = &of_rcar_gen2_compatible, },
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{ .compatible = "renesas,sdhi-r8a7791", .data = &of_rcar_gen2_compatible, },
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{ .compatible = "renesas,sdhi-r8a7792", .data = &of_rcar_gen2_compatible, },
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{ .compatible = "renesas,sdhi-r8a7793", .data = &of_rcar_gen2_compatible, },
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{ .compatible = "renesas,sdhi-r8a7794", .data = &of_rcar_gen2_compatible, },
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{ .compatible = "renesas,sdhi-r8a7795", .data = &of_rcar_gen3_compatible, },
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{ .compatible = "renesas,sdhi-r8a7796", .data = &of_rcar_gen3_compatible, },
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{},
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};
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MODULE_DEVICE_TABLE(of, renesas_sdhi_of_match);
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struct renesas_sdhi {
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struct clk *clk;
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struct clk *clk_cd;
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@ -552,9 +456,10 @@ static void renesas_sdhi_enable_dma(struct tmio_mmc_host *host, bool enable)
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renesas_sdhi_sdbuf_width(host, enable ? 32 : 16);
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}
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static int renesas_sdhi_probe(struct platform_device *pdev)
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int renesas_sdhi_probe(struct platform_device *pdev,
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const struct tmio_mmc_dma_ops *dma_ops)
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{
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const struct renesas_sdhi_of_data *of_data = of_device_get_match_data(&pdev->dev);
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const struct renesas_sdhi_of_data *of_data = of_device_get_match_data( &pdev->dev);
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struct renesas_sdhi *priv;
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struct tmio_mmc_data *mmc_data;
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struct tmio_mmc_data *mmd = pdev->dev.platform_data;
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@ -668,7 +573,7 @@ static int renesas_sdhi_probe(struct platform_device *pdev)
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/* All SDHI have SDIO status bits which must be 1 */
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mmc_data->flags |= TMIO_MMC_SDIO_STATUS_SETBITS;
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ret = tmio_mmc_host_probe(host, mmc_data, renesas_sdhi_get_dma_ops());
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ret = tmio_mmc_host_probe(host, mmc_data, dma_ops);
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if (ret < 0)
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goto efree;
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@ -733,8 +638,9 @@ static int renesas_sdhi_probe(struct platform_device *pdev)
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eprobe:
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return ret;
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}
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EXPORT_SYMBOL_GPL(renesas_sdhi_probe);
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static int renesas_sdhi_remove(struct platform_device *pdev)
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int renesas_sdhi_remove(struct platform_device *pdev)
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{
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struct mmc_host *mmc = platform_get_drvdata(pdev);
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struct tmio_mmc_host *host = mmc_priv(mmc);
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@ -743,28 +649,4 @@ static int renesas_sdhi_remove(struct platform_device *pdev)
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return 0;
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}
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static const struct dev_pm_ops tmio_mmc_dev_pm_ops = {
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SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
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pm_runtime_force_resume)
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SET_RUNTIME_PM_OPS(tmio_mmc_host_runtime_suspend,
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tmio_mmc_host_runtime_resume,
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NULL)
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};
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static struct platform_driver renesas_sdhi_driver = {
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.driver = {
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.name = "sh_mobile_sdhi",
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.pm = &tmio_mmc_dev_pm_ops,
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.of_match_table = renesas_sdhi_of_match,
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},
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.probe = renesas_sdhi_probe,
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.remove = renesas_sdhi_remove,
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};
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module_platform_driver(renesas_sdhi_driver);
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MODULE_DESCRIPTION("Renesas SDHI driver");
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MODULE_AUTHOR("Magnus Damm");
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MODULE_LICENSE("GPL v2");
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MODULE_ALIAS("platform:sh_mobile_sdhi");
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EXPORT_SYMBOL_GPL(renesas_sdhi_remove);
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@ -13,13 +13,93 @@
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#include <linux/dmaengine.h>
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#include <linux/mfd/tmio.h>
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#include <linux/mmc/host.h>
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#include <linux/mod_devicetable.h>
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#include <linux/module.h>
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#include <linux/pagemap.h>
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#include <linux/scatterlist.h>
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#include "renesas_sdhi.h"
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#include "tmio_mmc.h"
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#define TMIO_MMC_MIN_DMA_LEN 8
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static const struct renesas_sdhi_of_data of_default_cfg = {
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.tmio_flags = TMIO_MMC_HAS_IDLE_WAIT,
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};
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static const struct renesas_sdhi_of_data of_rz_compatible = {
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.tmio_flags = TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_32BIT_DATA_PORT,
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.tmio_ocr_mask = MMC_VDD_32_33,
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.capabilities = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ,
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};
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static const struct renesas_sdhi_of_data of_rcar_gen1_compatible = {
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.tmio_flags = TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_WRPROTECT_DISABLE |
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TMIO_MMC_CLK_ACTUAL,
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.capabilities = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ,
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};
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/* Definitions for sampling clocks */
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static struct renesas_sdhi_scc rcar_gen2_scc_taps[] = {
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{
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.clk_rate = 156000000,
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.tap = 0x00000703,
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},
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{
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.clk_rate = 0,
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.tap = 0x00000300,
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},
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};
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static const struct renesas_sdhi_of_data of_rcar_gen2_compatible = {
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.tmio_flags = TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_WRPROTECT_DISABLE |
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TMIO_MMC_CLK_ACTUAL | TMIO_MMC_MIN_RCAR2,
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.capabilities = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ,
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.dma_buswidth = DMA_SLAVE_BUSWIDTH_4_BYTES,
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.dma_rx_offset = 0x2000,
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.scc_offset = 0x0300,
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.taps = rcar_gen2_scc_taps,
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.taps_num = ARRAY_SIZE(rcar_gen2_scc_taps),
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};
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/* Definitions for sampling clocks */
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static struct renesas_sdhi_scc rcar_gen3_scc_taps[] = {
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{
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.clk_rate = 0,
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.tap = 0x00000300,
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},
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};
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static const struct renesas_sdhi_of_data of_rcar_gen3_compatible = {
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.tmio_flags = TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_WRPROTECT_DISABLE |
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TMIO_MMC_CLK_ACTUAL | TMIO_MMC_MIN_RCAR2,
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.capabilities = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ,
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.bus_shift = 2,
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.scc_offset = 0x1000,
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.taps = rcar_gen3_scc_taps,
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.taps_num = ARRAY_SIZE(rcar_gen3_scc_taps),
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};
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static const struct of_device_id renesas_sdhi_sys_dmac_of_match[] = {
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{ .compatible = "renesas,sdhi-shmobile" },
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{ .compatible = "renesas,sdhi-sh73a0", .data = &of_default_cfg, },
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{ .compatible = "renesas,sdhi-r8a73a4", .data = &of_default_cfg, },
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{ .compatible = "renesas,sdhi-r8a7740", .data = &of_default_cfg, },
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{ .compatible = "renesas,sdhi-r7s72100", .data = &of_rz_compatible, },
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{ .compatible = "renesas,sdhi-r8a7778", .data = &of_rcar_gen1_compatible, },
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{ .compatible = "renesas,sdhi-r8a7779", .data = &of_rcar_gen1_compatible, },
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{ .compatible = "renesas,sdhi-r8a7790", .data = &of_rcar_gen2_compatible, },
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{ .compatible = "renesas,sdhi-r8a7791", .data = &of_rcar_gen2_compatible, },
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{ .compatible = "renesas,sdhi-r8a7792", .data = &of_rcar_gen2_compatible, },
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{ .compatible = "renesas,sdhi-r8a7793", .data = &of_rcar_gen2_compatible, },
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{ .compatible = "renesas,sdhi-r8a7794", .data = &of_rcar_gen2_compatible, },
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{ .compatible = "renesas,sdhi-r8a7795", .data = &of_rcar_gen3_compatible, },
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{ .compatible = "renesas,sdhi-r8a7796", .data = &of_rcar_gen3_compatible, },
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{},
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};
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MODULE_DEVICE_TABLE(of, renesas_sdhi_sys_dmac_of_match);
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static void renesas_sdhi_sys_dmac_enable_dma(struct tmio_mmc_host *host,
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bool enable)
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{
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@ -365,7 +445,32 @@ static const struct tmio_mmc_dma_ops renesas_sdhi_sys_dmac_dma_ops = {
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.abort = renesas_sdhi_sys_dmac_abort_dma,
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};
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const struct tmio_mmc_dma_ops *renesas_sdhi_get_dma_ops(void)
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static int renesas_sdhi_sys_dmac_probe(struct platform_device *pdev)
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{
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return &renesas_sdhi_sys_dmac_dma_ops;
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return renesas_sdhi_probe(pdev, &renesas_sdhi_sys_dmac_dma_ops);
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}
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static const struct dev_pm_ops renesas_sdhi_sys_dmac_dev_pm_ops = {
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SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
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pm_runtime_force_resume)
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SET_RUNTIME_PM_OPS(tmio_mmc_host_runtime_suspend,
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tmio_mmc_host_runtime_resume,
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NULL)
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};
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static struct platform_driver renesas_sys_dmac_sdhi_driver = {
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.driver = {
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.name = "sh_mobile_sdhi",
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.pm = &renesas_sdhi_sys_dmac_dev_pm_ops,
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.of_match_table = renesas_sdhi_sys_dmac_of_match,
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},
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.probe = renesas_sdhi_sys_dmac_probe,
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.remove = renesas_sdhi_remove,
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};
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module_platform_driver(renesas_sys_dmac_sdhi_driver);
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MODULE_DESCRIPTION("Renesas SDHI driver");
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MODULE_AUTHOR("Magnus Damm");
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MODULE_LICENSE("GPL v2");
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MODULE_ALIAS("platform:sh_mobile_sdhi");
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