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ARM: OMAP4: Add minimal support for omap4

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This patch adds the support for OMAP4. The platform and machine specific
headers and sources updated for OMAP4430 SDP platform.

OMAP4430 is Texas Instrument's SOC based on ARM Cortex-A9 SMP architecture.
It's a dual core SOC with GIC used for interrupt handling and SCU for cache
coherency.

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Santosh Shilimkar
2009-05-28 14:16:04 -07:00
committed by Tony Lindgren
parent 7419045016
commit 44169075e6
26 changed files with 600 additions and 62 deletions
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23
arch/arm/plat-omap/dma.c
View File

@ -10,6 +10,9 @@
* Merged to support both OMAP1 and OMAP2 by Tony Lindgren <tony@atomide.com>
* Some functions based on earlier dma-omap.c Copyright (C) 2001 RidgeRun, Inc.
*
* Copyright (C) 2009 Texas Instruments
* Added OMAP4 support - Santosh Shilimkar <santosh.shilimkar@ti.com>
*
* Support functions for the OMAP internal DMA channels.
*
* This program is free software; you can redistribute it and/or modify
@ -872,7 +875,7 @@ omap_dma_set_prio_lch(int lch, unsigned char read_prio,
}
l = dma_read(CCR(lch));
l &= ~((1 << 6) | (1 << 26));
if (cpu_is_omap2430() || cpu_is_omap34xx())
if (cpu_is_omap2430() || cpu_is_omap34xx() || cpu_is_omap44xx())
l |= ((read_prio & 0x1) << 6) | ((write_prio & 0x1) << 26);
else
l |= ((read_prio & 0x1) << 6);
@ -1844,7 +1847,8 @@ static irqreturn_t omap1_dma_irq_handler(int irq, void *dev_id)
#define omap1_dma_irq_handler NULL
#endif
#if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3)
#if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3) || \
defined(CONFIG_ARCH_OMAP4)
static int omap2_dma_handle_ch(int ch)
{
@ -2339,6 +2343,9 @@ static int __init omap_init_dma(void)
} else if (cpu_is_omap34xx()) {
omap_dma_base = IO_ADDRESS(OMAP34XX_DMA4_BASE);
dma_lch_count = OMAP_DMA4_LOGICAL_DMA_CH_COUNT;
} else if (cpu_is_omap44xx()) {
omap_dma_base = IO_ADDRESS(OMAP44XX_DMA4_BASE);
dma_lch_count = OMAP_DMA4_LOGICAL_DMA_CH_COUNT;
} else {
pr_err("DMA init failed for unsupported omap\n");
return -ENODEV;
@ -2437,12 +2444,18 @@ static int __init omap_init_dma(void)
}
}
if (cpu_is_omap2430() || cpu_is_omap34xx())
if (cpu_is_omap2430() || cpu_is_omap34xx() || cpu_is_omap44xx())
omap_dma_set_global_params(DMA_DEFAULT_ARB_RATE,
DMA_DEFAULT_FIFO_DEPTH, 0);
if (cpu_class_is_omap2())
setup_irq(INT_24XX_SDMA_IRQ0, &omap24xx_dma_irq);
if (cpu_class_is_omap2()) {
int irq;
if (cpu_is_omap44xx())
irq = INT_44XX_SDMA_IRQ0;
else
irq = INT_24XX_SDMA_IRQ0;
setup_irq(irq, &omap24xx_dma_irq);
}
/* FIXME: Update LCD DMA to work on 24xx */
if (cpu_class_is_omap1()) {