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mmc: renesas_sdhi: Refactor renesas_sdhi_probe() 

Refactor renesas_sdhi_probe() to avoid increasing numbers of
sdhi_quirks_match[] entry when we add other stable SoCs like
r8a779m*.

Note that the sdhi_quirks_match[] is only needed on
renesas_sdhi_internal_dmac.c so that of_data of
renesas_sdhi_sys_dmac.c keeps as-is.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/20210729103234.480743-1-yoshihiro.shimoda.uh@renesas.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Yoshihiro Shimoda 2021-07-29 19:32:34 +09:00 committed by Ulf Hansson
parent ee5165354d
commit 71b7597c63
4 changed files with 141 additions and 96 deletions
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9
drivers/mmc/host/renesas_sdhi.h
View File

@ -42,6 +42,11 @@ struct renesas_sdhi_quirks {
const u8 (*hs400_calib_table)[SDHI_CALIB_TABLE_MAX];
};
struct renesas_sdhi_of_data_with_quirks {
const struct renesas_sdhi_of_data *of_data;
const struct renesas_sdhi_quirks *quirks;
};
struct tmio_mmc_dma {
enum dma_slave_buswidth dma_buswidth;
bool (*filter)(struct dma_chan *chan, void *arg);
@ -78,6 +83,8 @@ struct renesas_sdhi {
container_of((host)->pdata, struct renesas_sdhi, mmc_data)
int renesas_sdhi_probe(struct platform_device *pdev,
const struct tmio_mmc_dma_ops *dma_ops);
const struct tmio_mmc_dma_ops *dma_ops,
const struct renesas_sdhi_of_data *of_data,
const struct renesas_sdhi_quirks *quirks);
int renesas_sdhi_remove(struct platform_device *pdev);
#endif

90
drivers/mmc/host/renesas_sdhi_core.c
View File

@ -305,27 +305,6 @@ static int renesas_sdhi_start_signal_voltage_switch(struct mmc_host *mmc,
#define SH_MOBILE_SDHI_SCC_TMPPORT_CALIB_CODE_MASK 0x1f
#define SH_MOBILE_SDHI_SCC_TMPPORT_MANUAL_MODE BIT(7)
static const u8 r8a7796_es13_calib_table[2][SDHI_CALIB_TABLE_MAX] = {
{ 3, 3, 3, 3, 3, 3, 3, 4, 4, 5, 6, 7, 8, 9, 10, 15,
16, 16, 16, 16, 16, 16, 17, 18, 18, 19, 20, 21, 22, 23, 24, 25 },
{ 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 6, 7, 8, 11,
12, 17, 18, 18, 18, 18, 18, 18, 18, 19, 20, 21, 22, 23, 25, 25 }
};
static const u8 r8a77965_calib_table[2][SDHI_CALIB_TABLE_MAX] = {
{ 1, 2, 6, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 15, 15, 16,
17, 18, 19, 20, 21, 22, 23, 24, 25, 25, 26, 27, 28, 29, 30, 31 },
{ 2, 3, 4, 4, 5, 6, 7, 9, 10, 11, 12, 13, 14, 15, 16, 17,
17, 17, 20, 21, 22, 23, 24, 25, 27, 28, 29, 30, 31, 31, 31, 31 }
};
static const u8 r8a77990_calib_table[2][SDHI_CALIB_TABLE_MAX] = {
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
{ 0, 0, 0, 1, 2, 3, 3, 4, 4, 4, 5, 5, 6, 8, 9, 10,
11, 12, 13, 15, 16, 17, 17, 18, 18, 19, 20, 22, 24, 25, 26, 26 }
};
static inline u32 sd_scc_read32(struct tmio_mmc_host *host,
struct renesas_sdhi *priv, int addr)
{
@ -895,69 +874,12 @@ static void renesas_sdhi_enable_dma(struct tmio_mmc_host *host, bool enable)
renesas_sdhi_sdbuf_width(host, enable ? width : 16);
}
static const struct renesas_sdhi_quirks sdhi_quirks_4tap_nohs400 = {
.hs400_disabled = true,
.hs400_4taps = true,
};
static const struct renesas_sdhi_quirks sdhi_quirks_4tap = {
.hs400_4taps = true,
.hs400_bad_taps = BIT(2) | BIT(3) | BIT(6) | BIT(7),
};
static const struct renesas_sdhi_quirks sdhi_quirks_nohs400 = {
.hs400_disabled = true,
};
static const struct renesas_sdhi_quirks sdhi_quirks_bad_taps1357 = {
.hs400_bad_taps = BIT(1) | BIT(3) | BIT(5) | BIT(7),
};
static const struct renesas_sdhi_quirks sdhi_quirks_bad_taps2367 = {
.hs400_bad_taps = BIT(2) | BIT(3) | BIT(6) | BIT(7),
};
static const struct renesas_sdhi_quirks sdhi_quirks_r8a7796_es13 = {
.hs400_4taps = true,
.hs400_bad_taps = BIT(2) | BIT(3) | BIT(6) | BIT(7),
.hs400_calib_table = r8a7796_es13_calib_table,
};
static const struct renesas_sdhi_quirks sdhi_quirks_r8a77965 = {
.hs400_bad_taps = BIT(2) | BIT(3) | BIT(6) | BIT(7),
.hs400_calib_table = r8a77965_calib_table,
};
static const struct renesas_sdhi_quirks sdhi_quirks_r8a77990 = {
.hs400_calib_table = r8a77990_calib_table,
};
/*
* Note for r8a7796 / r8a774a1: we can't distinguish ES1.1 and 1.2 as of now.
* So, we want to treat them equally and only have a match for ES1.2 to enforce
* this if there ever will be a way to distinguish ES1.2.
*/
static const struct soc_device_attribute sdhi_quirks_match[] = {
{ .soc_id = "r8a774a1", .revision = "ES1.[012]", .data = &sdhi_quirks_4tap_nohs400 },
{ .soc_id = "r8a7795", .revision = "ES1.*", .data = &sdhi_quirks_4tap_nohs400 },
{ .soc_id = "r8a7795", .revision = "ES2.0", .data = &sdhi_quirks_4tap },
{ .soc_id = "r8a7795", .revision = "ES3.*", .data = &sdhi_quirks_bad_taps2367 },
{ .soc_id = "r8a7796", .revision = "ES1.[012]", .data = &sdhi_quirks_4tap_nohs400 },
{ .soc_id = "r8a7796", .revision = "ES1.*", .data = &sdhi_quirks_r8a7796_es13 },
{ .soc_id = "r8a77961", .data = &sdhi_quirks_bad_taps1357 },
{ .soc_id = "r8a77965", .data = &sdhi_quirks_r8a77965 },
{ .soc_id = "r8a77980", .data = &sdhi_quirks_nohs400 },
{ .soc_id = "r8a77990", .data = &sdhi_quirks_r8a77990 },
{ /* Sentinel. */ },
};
int renesas_sdhi_probe(struct platform_device *pdev,
const struct tmio_mmc_dma_ops *dma_ops)
const struct tmio_mmc_dma_ops *dma_ops,
const struct renesas_sdhi_of_data *of_data,
const struct renesas_sdhi_quirks *quirks)
{
struct tmio_mmc_data *mmd = pdev->dev.platform_data;
const struct renesas_sdhi_quirks *quirks = NULL;
const struct renesas_sdhi_of_data *of_data;
const struct soc_device_attribute *attr;
struct tmio_mmc_data *mmc_data;
struct tmio_mmc_dma *dma_priv;
struct tmio_mmc_host *host;
@ -966,12 +888,6 @@ int renesas_sdhi_probe(struct platform_device *pdev,
struct resource *res;
u16 ver;
of_data = of_device_get_match_data(&pdev->dev);
attr = soc_device_match(sdhi_quirks_match);
if (attr)
quirks = attr->data;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res)
return -EINVAL;

135
drivers/mmc/host/renesas_sdhi_internal_dmac.c
View File

@ -15,6 +15,7 @@
#include <linux/mmc/host.h>
#include <linux/mod_devicetable.h>
#include <linux/module.h>
#include <linux/of_device.h>
#include <linux/pagemap.h>
#include <linux/scatterlist.h>
#include <linux/sys_soc.h>
@ -92,7 +93,7 @@ static struct renesas_sdhi_scc rcar_gen3_scc_taps[] = {
},
};
static const struct renesas_sdhi_of_data of_rza2_compatible = {
static const struct renesas_sdhi_of_data of_data_rza2 = {
.tmio_flags = TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_CLK_ACTUAL |
TMIO_MMC_HAVE_CBSY,
.tmio_ocr_mask = MMC_VDD_32_33,
@ -107,7 +108,11 @@ static const struct renesas_sdhi_of_data of_rza2_compatible = {
.max_segs = 1,
};
static const struct renesas_sdhi_of_data of_rcar_gen3_compatible = {
static const struct renesas_sdhi_of_data_with_quirks of_rza2_compatible = {
.of_data = &of_data_rza2,
};
static const struct renesas_sdhi_of_data of_data_rcar_gen3 = {
.tmio_flags = TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_CLK_ACTUAL |
TMIO_MMC_HAVE_CBSY | TMIO_MMC_MIN_RCAR2,
.capabilities = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ |
@ -122,11 +127,116 @@ static const struct renesas_sdhi_of_data of_rcar_gen3_compatible = {
.max_segs = 1,
};
static const u8 r8a7796_es13_calib_table[2][SDHI_CALIB_TABLE_MAX] = {
{ 3, 3, 3, 3, 3, 3, 3, 4, 4, 5, 6, 7, 8, 9, 10, 15,
16, 16, 16, 16, 16, 16, 17, 18, 18, 19, 20, 21, 22, 23, 24, 25 },
{ 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 6, 7, 8, 11,
12, 17, 18, 18, 18, 18, 18, 18, 18, 19, 20, 21, 22, 23, 25, 25 }
};
static const u8 r8a77965_calib_table[2][SDHI_CALIB_TABLE_MAX] = {
{ 1, 2, 6, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 15, 15, 16,
17, 18, 19, 20, 21, 22, 23, 24, 25, 25, 26, 27, 28, 29, 30, 31 },
{ 2, 3, 4, 4, 5, 6, 7, 9, 10, 11, 12, 13, 14, 15, 16, 17,
17, 17, 20, 21, 22, 23, 24, 25, 27, 28, 29, 30, 31, 31, 31, 31 }
};
static const u8 r8a77990_calib_table[2][SDHI_CALIB_TABLE_MAX] = {
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
{ 0, 0, 0, 1, 2, 3, 3, 4, 4, 4, 5, 5, 6, 8, 9, 10,
11, 12, 13, 15, 16, 17, 17, 18, 18, 19, 20, 22, 24, 25, 26, 26 }
};
static const struct renesas_sdhi_quirks sdhi_quirks_4tap_nohs400 = {
.hs400_disabled = true,
.hs400_4taps = true,
};
static const struct renesas_sdhi_quirks sdhi_quirks_4tap = {
.hs400_4taps = true,
.hs400_bad_taps = BIT(2) | BIT(3) | BIT(6) | BIT(7),
};
static const struct renesas_sdhi_quirks sdhi_quirks_nohs400 = {
.hs400_disabled = true,
};
static const struct renesas_sdhi_quirks sdhi_quirks_bad_taps1357 = {
.hs400_bad_taps = BIT(1) | BIT(3) | BIT(5) | BIT(7),
};
static const struct renesas_sdhi_quirks sdhi_quirks_bad_taps2367 = {
.hs400_bad_taps = BIT(2) | BIT(3) | BIT(6) | BIT(7),
};
static const struct renesas_sdhi_quirks sdhi_quirks_r8a7796_es13 = {
.hs400_4taps = true,
.hs400_bad_taps = BIT(2) | BIT(3) | BIT(6) | BIT(7),
.hs400_calib_table = r8a7796_es13_calib_table,
};
static const struct renesas_sdhi_quirks sdhi_quirks_r8a77965 = {
.hs400_bad_taps = BIT(2) | BIT(3) | BIT(6) | BIT(7),
.hs400_calib_table = r8a77965_calib_table,
};
static const struct renesas_sdhi_quirks sdhi_quirks_r8a77990 = {
.hs400_calib_table = r8a77990_calib_table,
};
/*
* Note for r8a7796 / r8a774a1: we can't distinguish ES1.1 and 1.2 as of now.
* So, we want to treat them equally and only have a match for ES1.2 to enforce
* this if there ever will be a way to distinguish ES1.2.
*/
static const struct soc_device_attribute sdhi_quirks_match[] = {
{ .soc_id = "r8a774a1", .revision = "ES1.[012]", .data = &sdhi_quirks_4tap_nohs400 },
{ .soc_id = "r8a7795", .revision = "ES1.*", .data = &sdhi_quirks_4tap_nohs400 },
{ .soc_id = "r8a7795", .revision = "ES2.0", .data = &sdhi_quirks_4tap },
{ .soc_id = "r8a7796", .revision = "ES1.[012]", .data = &sdhi_quirks_4tap_nohs400 },
{ .soc_id = "r8a7796", .revision = "ES1.*", .data = &sdhi_quirks_r8a7796_es13 },
{ /* Sentinel. */ },
};
static const struct renesas_sdhi_of_data_with_quirks of_r8a7795_compatible = {
.of_data = &of_data_rcar_gen3,
.quirks = &sdhi_quirks_bad_taps2367,
};
static const struct renesas_sdhi_of_data_with_quirks of_r8a77961_compatible = {
.of_data = &of_data_rcar_gen3,
.quirks = &sdhi_quirks_bad_taps1357,
};
static const struct renesas_sdhi_of_data_with_quirks of_r8a77965_compatible = {
.of_data = &of_data_rcar_gen3,
.quirks = &sdhi_quirks_r8a77965,
};
static const struct renesas_sdhi_of_data_with_quirks of_r8a77980_compatible = {
.of_data = &of_data_rcar_gen3,
.quirks = &sdhi_quirks_nohs400,
};
static const struct renesas_sdhi_of_data_with_quirks of_r8a77990_compatible = {
.of_data = &of_data_rcar_gen3,
.quirks = &sdhi_quirks_r8a77990,
};
static const struct renesas_sdhi_of_data_with_quirks of_rcar_gen3_compatible = {
.of_data = &of_data_rcar_gen3,
};
static const struct of_device_id renesas_sdhi_internal_dmac_of_match[] = {
{ .compatible = "renesas,sdhi-r7s9210", .data = &of_rza2_compatible, },
{ .compatible = "renesas,sdhi-mmc-r8a77470", .data = &of_rcar_gen3_compatible, },
{ .compatible = "renesas,sdhi-r8a7795", .data = &of_rcar_gen3_compatible, },
{ .compatible = "renesas,sdhi-r8a7795", .data = &of_r8a7795_compatible, },
{ .compatible = "renesas,sdhi-r8a7796", .data = &of_rcar_gen3_compatible, },
{ .compatible = "renesas,sdhi-r8a77961", .data = &of_r8a77961_compatible, },
{ .compatible = "renesas,sdhi-r8a77965", .data = &of_r8a77965_compatible, },
{ .compatible = "renesas,sdhi-r8a77980", .data = &of_r8a77980_compatible, },
{ .compatible = "renesas,sdhi-r8a77990", .data = &of_r8a77990_compatible, },
{ .compatible = "renesas,rcar-gen3-sdhi", .data = &of_rcar_gen3_compatible, },
{},
};
@ -405,16 +515,27 @@ static const struct soc_device_attribute soc_dma_quirks[] = {
static int renesas_sdhi_internal_dmac_probe(struct platform_device *pdev)
{
const struct soc_device_attribute *soc = soc_device_match(soc_dma_quirks);
const struct soc_device_attribute *attr;
const struct renesas_sdhi_of_data_with_quirks *of_data_quirks;
const struct renesas_sdhi_quirks *quirks;
struct device *dev = &pdev->dev;
if (soc)
global_flags |= (unsigned long)soc->data;
of_data_quirks = of_device_get_match_data(&pdev->dev);
quirks = of_data_quirks->quirks;
attr = soc_device_match(soc_dma_quirks);
if (attr)
global_flags |= (unsigned long)attr->data;
attr = soc_device_match(sdhi_quirks_match);
if (attr)
quirks = attr->data;
/* value is max of SD_SECCNT. Confirmed by HW engineers */
dma_set_max_seg_size(dev, 0xffffffff);
return renesas_sdhi_probe(pdev, &renesas_sdhi_internal_dmac_dma_ops);
return renesas_sdhi_probe(pdev, &renesas_sdhi_internal_dmac_dma_ops,
of_data_quirks->of_data, quirks);
}
static const struct dev_pm_ops renesas_sdhi_internal_dmac_dev_pm_ops = {

3
drivers/mmc/host/renesas_sdhi_sys_dmac.c
View File

@ -451,7 +451,8 @@ static const struct tmio_mmc_dma_ops renesas_sdhi_sys_dmac_dma_ops = {
static int renesas_sdhi_sys_dmac_probe(struct platform_device *pdev)
{
return renesas_sdhi_probe(pdev, &renesas_sdhi_sys_dmac_dma_ops);
return renesas_sdhi_probe(pdev, &renesas_sdhi_sys_dmac_dma_ops,
of_device_get_match_data(&pdev->dev), NULL);
}
static const struct dev_pm_ops renesas_sdhi_sys_dmac_dev_pm_ops = {