evie/android_kernel_oneplus_msm8998
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mmc: sdhci-msm: configure adma descriptors for large request size

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This patch adds a function to configure adma descriptors to
support request size upto 512MB.

Change-Id: Ie2ad32106422bb5bdbf72b08d1ecdd74d9a93c19
Signed-off-by: Asutosh Das <asutoshd@codeaurora.org>
This commit is contained in:
Asutosh Das 2013-01-10 21:11:04 +05:30 • committed by Subhash Jadavani
parent 19891e6b32
commit a507b5a6c4
1 changed files with 9 additions and 0 deletions
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9
drivers/mmc/host/sdhci-msm.c
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@ -76,6 +76,9 @@
#define CORE_CLK_PWRSAVE (1 << 1) #define CORE_CLK_PWRSAVE (1 << 1)
#define CORE_IO_PAD_PWR_SWITCH (1 << 16) #define CORE_IO_PAD_PWR_SWITCH (1 << 16)
/* 8KB descriptors */
#define SDHCI_MSM_MAX_SEGMENTS (1 << 13)
static const u32 tuning_block_64[] = { static const u32 tuning_block_64[] = {
0x00FF0FFF, 0xCCC3CCFF, 0xFFCC3CC3, 0xEFFEFFFE, 0x00FF0FFF, 0xCCC3CCFF, 0xFFCC3CC3, 0xEFFEFFFE,
0xDDFFDFFF, 0xFBFFFBFF, 0xFF7FFFBF, 0xEFBDF777, 0xDDFFDFFF, 0xFBFFFBFF, 0xFF7FFFBF, 0xEFBDF777,
@ -1498,10 +1501,16 @@ static void sdhci_msm_toggle_cdr(struct sdhci_host *host, bool enable)
host->ioaddr + CORE_DLL_CONFIG); host->ioaddr + CORE_DLL_CONFIG);
} }
static unsigned int sdhci_msm_max_segs(void)
{
return SDHCI_MSM_MAX_SEGMENTS;
}
static struct sdhci_ops sdhci_msm_ops = { static struct sdhci_ops sdhci_msm_ops = {
.check_power_status = sdhci_msm_check_power_status, .check_power_status = sdhci_msm_check_power_status,
.platform_execute_tuning = sdhci_msm_execute_tuning, .platform_execute_tuning = sdhci_msm_execute_tuning,
.toggle_cdr = sdhci_msm_toggle_cdr, .toggle_cdr = sdhci_msm_toggle_cdr,
.get_max_segments = sdhci_msm_max_segs,
}; };
static int sdhci_msm_probe(struct platform_device *pdev) static int sdhci_msm_probe(struct platform_device *pdev)