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authorernest.zhang <ernest.zhang@bayhubtech.com>2018-07-16 02:26:52 -0400
committerUlf Hansson <ulf.hansson@linaro.org>2018-07-30 08:24:56 -0400
commit3665ff03c16ee6436d45a699565ba08f7ebdebb5 (patch)
treefb1decc16946344169ab41c68c3d3c6a6db30adc
parent57322d542ffe01076c9df10d38e3ec0a58f9d83a (diff)
mmc: sdhci: Change O2 Host HS200 mode clock frequency to 200MHz
O2 SD Host HS200 mode clock frequency current is 208MHz, should be changed to 200MHz to meet specification. Signed-off-by: ernest.zhang <ernest.zhang@bayhubtech.com> Acked-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
-rw-r--r--drivers/mmc/host/sdhci-pci-o2micro.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/mmc/host/sdhci-pci-o2micro.c b/drivers/mmc/host/sdhci-pci-o2micro.c
index ba59db6a126c..7b37713d8826 100644
--- a/drivers/mmc/host/sdhci-pci-o2micro.c
+++ b/drivers/mmc/host/sdhci-pci-o2micro.c
@@ -311,9 +311,8 @@ int sdhci_pci_o2_probe(struct sdhci_pci_chip *chip)
311 311
312 /* Check Whether subId is 0x11 or 0x12 */ 312 /* Check Whether subId is 0x11 or 0x12 */
313 if ((scratch_32 == 0x11) || (scratch_32 == 0x12)) { 313 if ((scratch_32 == 0x11) || (scratch_32 == 0x12)) {
314 scratch_32 = 0x2c280000; 314 scratch_32 = 0x25100000;
315 315
316 /* Set Base Clock to 208MZ */
317 o2_pci_set_baseclk(chip, scratch_32); 316 o2_pci_set_baseclk(chip, scratch_32);
318 ret = pci_read_config_dword(chip->pdev, 317 ret = pci_read_config_dword(chip->pdev,
319 O2_SD_FUNC_REG4, 318 O2_SD_FUNC_REG4,
@@ -406,7 +405,7 @@ int sdhci_pci_o2_probe(struct sdhci_pci_chip *chip)
406 O2_SD_PLL_SETTING, scratch_32); 405 O2_SD_PLL_SETTING, scratch_32);
407 } else { 406 } else {
408 scratch_32 &= 0x0000FFFF; 407 scratch_32 &= 0x0000FFFF;
409 scratch_32 |= 0x2c280000; 408 scratch_32 |= 0x25100000;
410 409
411 pci_write_config_dword(chip->pdev, 410 pci_write_config_dword(chip->pdev,
412 O2_SD_PLL_SETTING, scratch_32); 411 O2_SD_PLL_SETTING, scratch_32);