/*
- * SuperH Mobile SDHI
+ * Renesas SDHI
*
* Copyright (C) 2016 Sang Engineering, Wolfram Sang
* Copyright (C) 2015-16 Renesas Electronics Corporation
#include <linux/kernel.h>
#include <linux/clk.h>
#include <linux/slab.h>
-#include <linux/mod_devicetable.h>
-#include <linux/module.h>
#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <linux/mmc/host.h>
#define host_to_priv(host) container_of((host)->pdata, struct renesas_sdhi, mmc_data)
-struct renesas_sdhi_scc {
- unsigned long clk_rate; /* clock rate for SDR104 */
- u32 tap; /* sampling clock position for SDR104 */
-};
-
-struct renesas_sdhi_of_data {
- unsigned long tmio_flags;
- u32 tmio_ocr_mask;
- unsigned long capabilities;
- unsigned long capabilities2;
- enum dma_slave_buswidth dma_buswidth;
- dma_addr_t dma_rx_offset;
- unsigned bus_shift;
- int scc_offset;
- struct renesas_sdhi_scc *taps;
- int taps_num;
-};
-
-static const struct renesas_sdhi_of_data of_default_cfg = {
- .tmio_flags = TMIO_MMC_HAS_IDLE_WAIT,
-};
-
-static const struct renesas_sdhi_of_data of_rz_compatible = {
- .tmio_flags = TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_32BIT_DATA_PORT,
- .tmio_ocr_mask = MMC_VDD_32_33,
- .capabilities = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ,
-};
-
-static const struct renesas_sdhi_of_data of_rcar_gen1_compatible = {
- .tmio_flags = TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_WRPROTECT_DISABLE |
- TMIO_MMC_CLK_ACTUAL,
- .capabilities = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ,
-};
-
-/* Definitions for sampling clocks */
-static struct renesas_sdhi_scc rcar_gen2_scc_taps[] = {
- {
- .clk_rate = 156000000,
- .tap = 0x00000703,
- },
- {
- .clk_rate = 0,
- .tap = 0x00000300,
- },
-};
-
-static const struct renesas_sdhi_of_data of_rcar_gen2_compatible = {
- .tmio_flags = TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_WRPROTECT_DISABLE |
- TMIO_MMC_CLK_ACTUAL | TMIO_MMC_MIN_RCAR2,
- .capabilities = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ,
- .dma_buswidth = DMA_SLAVE_BUSWIDTH_4_BYTES,
- .dma_rx_offset = 0x2000,
- .scc_offset = 0x0300,
- .taps = rcar_gen2_scc_taps,
- .taps_num = ARRAY_SIZE(rcar_gen2_scc_taps),
-};
-
-/* Definitions for sampling clocks */
-static struct renesas_sdhi_scc rcar_gen3_scc_taps[] = {
- {
- .clk_rate = 0,
- .tap = 0x00000300,
- },
-};
-
-static const struct renesas_sdhi_of_data of_rcar_gen3_compatible = {
- .tmio_flags = TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_WRPROTECT_DISABLE |
- TMIO_MMC_CLK_ACTUAL | TMIO_MMC_MIN_RCAR2,
- .capabilities = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ,
- .bus_shift = 2,
- .scc_offset = 0x1000,
- .taps = rcar_gen3_scc_taps,
- .taps_num = ARRAY_SIZE(rcar_gen3_scc_taps),
-};
-
-static const struct of_device_id renesas_sdhi_of_match[] = {
- { .compatible = "renesas,sdhi-shmobile" },
- { .compatible = "renesas,sdhi-sh73a0", .data = &of_default_cfg, },
- { .compatible = "renesas,sdhi-r8a73a4", .data = &of_default_cfg, },
- { .compatible = "renesas,sdhi-r8a7740", .data = &of_default_cfg, },
- { .compatible = "renesas,sdhi-r7s72100", .data = &of_rz_compatible, },
- { .compatible = "renesas,sdhi-r8a7778", .data = &of_rcar_gen1_compatible, },
- { .compatible = "renesas,sdhi-r8a7779", .data = &of_rcar_gen1_compatible, },
- { .compatible = "renesas,sdhi-r8a7790", .data = &of_rcar_gen2_compatible, },
- { .compatible = "renesas,sdhi-r8a7791", .data = &of_rcar_gen2_compatible, },
- { .compatible = "renesas,sdhi-r8a7792", .data = &of_rcar_gen2_compatible, },
- { .compatible = "renesas,sdhi-r8a7793", .data = &of_rcar_gen2_compatible, },
- { .compatible = "renesas,sdhi-r8a7794", .data = &of_rcar_gen2_compatible, },
- { .compatible = "renesas,sdhi-r8a7795", .data = &of_rcar_gen3_compatible, },
- { .compatible = "renesas,sdhi-r8a7796", .data = &of_rcar_gen3_compatible, },
- {},
-};
-MODULE_DEVICE_TABLE(of, renesas_sdhi_of_match);
-
struct renesas_sdhi {
struct clk *clk;
struct clk *clk_cd;
renesas_sdhi_sdbuf_width(host, enable ? 32 : 16);
}
-static int renesas_sdhi_probe(struct platform_device *pdev)
+int renesas_sdhi_probe(struct platform_device *pdev,
+ const struct tmio_mmc_dma_ops *dma_ops)
{
- const struct renesas_sdhi_of_data *of_data = of_device_get_match_data(&pdev->dev);
+ const struct renesas_sdhi_of_data *of_data = of_device_get_match_data( &pdev->dev);
struct renesas_sdhi *priv;
struct tmio_mmc_data *mmc_data;
struct tmio_mmc_data *mmd = pdev->dev.platform_data;
/* All SDHI have SDIO status bits which must be 1 */
mmc_data->flags |= TMIO_MMC_SDIO_STATUS_SETBITS;
- ret = tmio_mmc_host_probe(host, mmc_data, renesas_sdhi_get_dma_ops());
+ ret = tmio_mmc_host_probe(host, mmc_data, dma_ops);
if (ret < 0)
goto efree;
eprobe:
return ret;
}
+EXPORT_SYMBOL_GPL(renesas_sdhi_probe);
-static int renesas_sdhi_remove(struct platform_device *pdev)
+int renesas_sdhi_remove(struct platform_device *pdev)
{
struct mmc_host *mmc = platform_get_drvdata(pdev);
struct tmio_mmc_host *host = mmc_priv(mmc);
return 0;
}
-
-static const struct dev_pm_ops tmio_mmc_dev_pm_ops = {
- SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
- pm_runtime_force_resume)
- SET_RUNTIME_PM_OPS(tmio_mmc_host_runtime_suspend,
- tmio_mmc_host_runtime_resume,
- NULL)
-};
-
-static struct platform_driver renesas_sdhi_driver = {
- .driver = {
- .name = "sh_mobile_sdhi",
- .pm = &tmio_mmc_dev_pm_ops,
- .of_match_table = renesas_sdhi_of_match,
- },
- .probe = renesas_sdhi_probe,
- .remove = renesas_sdhi_remove,
-};
-
-module_platform_driver(renesas_sdhi_driver);
-
-MODULE_DESCRIPTION("Renesas SDHI driver");
-MODULE_AUTHOR("Magnus Damm");
-MODULE_LICENSE("GPL v2");
-MODULE_ALIAS("platform:sh_mobile_sdhi");
+EXPORT_SYMBOL_GPL(renesas_sdhi_remove);
#include <linux/dmaengine.h>
#include <linux/mfd/tmio.h>
#include <linux/mmc/host.h>
+#include <linux/mod_devicetable.h>
+#include <linux/module.h>
#include <linux/pagemap.h>
#include <linux/scatterlist.h>
+#include "renesas_sdhi.h"
#include "tmio_mmc.h"
#define TMIO_MMC_MIN_DMA_LEN 8
+static const struct renesas_sdhi_of_data of_default_cfg = {
+ .tmio_flags = TMIO_MMC_HAS_IDLE_WAIT,
+};
+
+static const struct renesas_sdhi_of_data of_rz_compatible = {
+ .tmio_flags = TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_32BIT_DATA_PORT,
+ .tmio_ocr_mask = MMC_VDD_32_33,
+ .capabilities = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ,
+};
+
+static const struct renesas_sdhi_of_data of_rcar_gen1_compatible = {
+ .tmio_flags = TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_WRPROTECT_DISABLE |
+ TMIO_MMC_CLK_ACTUAL,
+ .capabilities = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ,
+};
+
+/* Definitions for sampling clocks */
+static struct renesas_sdhi_scc rcar_gen2_scc_taps[] = {
+ {
+ .clk_rate = 156000000,
+ .tap = 0x00000703,
+ },
+ {
+ .clk_rate = 0,
+ .tap = 0x00000300,
+ },
+};
+
+static const struct renesas_sdhi_of_data of_rcar_gen2_compatible = {
+ .tmio_flags = TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_WRPROTECT_DISABLE |
+ TMIO_MMC_CLK_ACTUAL | TMIO_MMC_MIN_RCAR2,
+ .capabilities = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ,
+ .dma_buswidth = DMA_SLAVE_BUSWIDTH_4_BYTES,
+ .dma_rx_offset = 0x2000,
+ .scc_offset = 0x0300,
+ .taps = rcar_gen2_scc_taps,
+ .taps_num = ARRAY_SIZE(rcar_gen2_scc_taps),
+};
+
+/* Definitions for sampling clocks */
+static struct renesas_sdhi_scc rcar_gen3_scc_taps[] = {
+ {
+ .clk_rate = 0,
+ .tap = 0x00000300,
+ },
+};
+
+static const struct renesas_sdhi_of_data of_rcar_gen3_compatible = {
+ .tmio_flags = TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_WRPROTECT_DISABLE |
+ TMIO_MMC_CLK_ACTUAL | TMIO_MMC_MIN_RCAR2,
+ .capabilities = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ,
+ .bus_shift = 2,
+ .scc_offset = 0x1000,
+ .taps = rcar_gen3_scc_taps,
+ .taps_num = ARRAY_SIZE(rcar_gen3_scc_taps),
+};
+
+static const struct of_device_id renesas_sdhi_sys_dmac_of_match[] = {
+ { .compatible = "renesas,sdhi-shmobile" },
+ { .compatible = "renesas,sdhi-sh73a0", .data = &of_default_cfg, },
+ { .compatible = "renesas,sdhi-r8a73a4", .data = &of_default_cfg, },
+ { .compatible = "renesas,sdhi-r8a7740", .data = &of_default_cfg, },
+ { .compatible = "renesas,sdhi-r7s72100", .data = &of_rz_compatible, },
+ { .compatible = "renesas,sdhi-r8a7778", .data = &of_rcar_gen1_compatible, },
+ { .compatible = "renesas,sdhi-r8a7779", .data = &of_rcar_gen1_compatible, },
+ { .compatible = "renesas,sdhi-r8a7790", .data = &of_rcar_gen2_compatible, },
+ { .compatible = "renesas,sdhi-r8a7791", .data = &of_rcar_gen2_compatible, },
+ { .compatible = "renesas,sdhi-r8a7792", .data = &of_rcar_gen2_compatible, },
+ { .compatible = "renesas,sdhi-r8a7793", .data = &of_rcar_gen2_compatible, },
+ { .compatible = "renesas,sdhi-r8a7794", .data = &of_rcar_gen2_compatible, },
+ { .compatible = "renesas,sdhi-r8a7795", .data = &of_rcar_gen3_compatible, },
+ { .compatible = "renesas,sdhi-r8a7796", .data = &of_rcar_gen3_compatible, },
+ {},
+};
+MODULE_DEVICE_TABLE(of, renesas_sdhi_sys_dmac_of_match);
+
+
static void renesas_sdhi_sys_dmac_enable_dma(struct tmio_mmc_host *host,
bool enable)
{
.abort = renesas_sdhi_sys_dmac_abort_dma,
};
-const struct tmio_mmc_dma_ops *renesas_sdhi_get_dma_ops(void)
+static int renesas_sdhi_sys_dmac_probe(struct platform_device *pdev)
{
- return &renesas_sdhi_sys_dmac_dma_ops;
+ return renesas_sdhi_probe(pdev, &renesas_sdhi_sys_dmac_dma_ops);
}
+
+static const struct dev_pm_ops renesas_sdhi_sys_dmac_dev_pm_ops = {
+ SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
+ pm_runtime_force_resume)
+ SET_RUNTIME_PM_OPS(tmio_mmc_host_runtime_suspend,
+ tmio_mmc_host_runtime_resume,
+ NULL)
+};
+
+static struct platform_driver renesas_sys_dmac_sdhi_driver = {
+ .driver = {
+ .name = "sh_mobile_sdhi",
+ .pm = &renesas_sdhi_sys_dmac_dev_pm_ops,
+ .of_match_table = renesas_sdhi_sys_dmac_of_match,
+ },
+ .probe = renesas_sdhi_sys_dmac_probe,
+ .remove = renesas_sdhi_remove,
+};
+
+module_platform_driver(renesas_sys_dmac_sdhi_driver);
+
+MODULE_DESCRIPTION("Renesas SDHI driver");
+MODULE_AUTHOR("Magnus Damm");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:sh_mobile_sdhi");
projects / openwrt / staging / blogic.git / commitdiff