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Add missing HSCMI configuration options; Make HSMCI configuration naming more compatible; Fix HSCMI clocking to use the CLKODD bit

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This commit is contained in:
Gregory Nutt 2014-03-24 14:25:40 -06:00
parent 7b1e036057
commit 9f2946833b
1 changed files with 8 additions and 8 deletions
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16
configs/sam4e-ek/include/board.h
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@ -146,28 +146,28 @@
*/
#ifdef CONFIG_SAM4EEK_120MHZ
/* MCK = 120MHz, CLKDIV = 149, MCI_SPEED = 120MHz / 2 * (149+1) = 400 KHz */
/* MCK = 120MHz, CLKDIV = 149 w/o CLKODD, MCI_SPEED = 120MHz / (2*149 + 0 + 2) = 400 KHz */
# define HSMCI_INIT_CLKDIV (149 << HSMCI_MR_CLKDIV_SHIFT)
/* MCK = 120MHz, CLKDIV = 2, MCI_SPEED = 120MHz / 2 * (2+1) = 20 MHz */
/* MCK = 120MHz, CLKDIV = 2 w/o CLKODD, MCI_SPEED = 120MHz / (2*2 + 0 + 2) = 20 MHz */
# define HSMCI_MMCXFR_CLKDIV (3 << HSMCI_MR_CLKDIV_SHIFT)
/* MCK = 120MHz, CLKDIV = 2, MCI_SPEED = 120MHz / 2 * (2+1) = 20 MHz */
/* MCK = 120MHz, CLKDIV = 1 w/ CLKODD, MCI_SPEED = 120MHz / (2*1 + 1 + 2) = 24 MHz */
# define HSMCI_SDXFR_CLKDIV (1 << HSMCI_MR_CLKDIV_SHIFT)
# define HSMCI_SDXFR_CLKDIV ((1 << HSMCI_MR_CLKDIV_SHIFT) | HSMCI_MR_CLKODD)
#else
/* MCK = 96MHz, CLKDIV = 119, MCI_SPEED = 96MHz / 2 * (119+1) = 400 KHz */
/* MCK = 96MHz, CLKDIV = 119, w/o CLKODD, MCI_SPEED = 96MHz / (2 * 119 + 0 + 2) = 400 KHz */
# define HSMCI_INIT_CLKDIV (119 << HSMCI_MR_CLKDIV_SHIFT)
/* MCK = 96MHz, CLKDIV = 3, MCI_SPEED = 96MHz / 2 * (3+1) = 12 MHz */
/* MCK = 96MHz, CLKDIV = 1 w/ CLKODD, MCI_SPEED = 96MHz / (2*1 + 1 + 2) = 19.2 MHz */
# define HSMCI_MMCXFR_CLKDIV (3 << HSMCI_MR_CLKDIV_SHIFT)
# define HSMCI_MMCXFR_CLKDIV ((3 << HSMCI_MR_CLKDIV_SHIFT) | HSMCI_MR_CLKODD)
/* MCK = 96MHz, CLKDIV = 1, MCI_SPEED = 96MHz / 2 * (1+1) = 24 MHz */
/* MCK = 96MHz, CLKDIV = 1 w/o CLKODD, MCI_SPEED = 96MHz / (2*1 + 0 + 2) = 24 MHz */
# define HSMCI_SDXFR_CLKDIV (1 << HSMCI_MR_CLKDIV_SHIFT)
#endif