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DM320: Use SD/MMC data done interrupt

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Wait on semaphore until DMA finishes instead of busy waiting. This
allows the CPU to be used by other tasks during transfers.

Increase peripheral clock frequency, divide AHB by 2 instead of 3.
Function clock frequency is AHB divided by MMC divider + 1.

Change-Id: Ic890634da7e3541962ea3501eae8fa2ca2db606a
This commit is contained in:
Tomasz Moń 2021-06-14 21:15:04 +02:00
parent 95408f2117
commit f6c7407cc3
2 changed files with 49 additions and 17 deletions
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17
firmware/export/dm320.h
View file

@ -930,11 +930,27 @@ extern unsigned long _ttbstart;
#define MMC_ST1_DXFULL (1 << 3)
#define MMC_ST1_DAT3ST (1 << 4)
#define MMC_IE_EDATDNE (1 << 0)
#define MMC_IE_EBSYDNE (1 << 1)
#define MMC_IE_ERSPDNE (1 << 2)
#define MMC_IE_ETOUTRD (1 << 3)
#define MMC_IE_ETOUTRS (1 << 4)
#define MMC_IE_ECRCWR (1 << 5)
#define MMC_IE_ECRCRD (1 << 6)
#define MMC_IE_ECRCRS (1 << 7)
#define MMC_IE_EDXRDY (1 << 9)
#define MMC_IE_EDRRDY (1 << 10)
#define MMC_IE_EDATED (1 << 11)
#define MMC_DMAMODE_RD_WORDSWAP (1 << 10)
#define MMC_DMAMODE_WR_WORDSWAP (1 << 11)
#define MMC_DMAMODE_WRITE (1 << 12)
#define MMC_DMAMODE_ENABLE (1 << 13)
#define MMC_DMAMODE_TIMEOUTIRQ_EN (1 << 14)
#define MMC_DMASTAT1_RUNST (1 << 12)
#define MMC_DMASTAT1_TOUTDT (1 << 13)
/*
* IO_EINTx bits
*/
@ -1001,6 +1017,7 @@ extern unsigned long _ttbstart;
#define INTR_IRQ1_EXT0 INTR_EINT1_EXT0
#define INTR_IRQ1_EXT2 INTR_EINT1_EXT2
#define INTR_IRQ1_EXT7 INTR_EINT1_EXT7
#define INTR_IRQ1_MMCSDMS0 INTR_EINT1_MMCSDMS0
#define INTR_IRQ1_MTC0 INTR_EINT1_MTC0
/*