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omap4 hsmmc: Register offset handling

Browse source 
In OMAP4, as per new PM programming model, the legacy registers
which were there in OMAP3 are all shifted by 0x100 while new one's
are added from offset 0 to 0x10.
For OMAP4, the register offset appending of 0x100 done in devices.c
currently, is moved to driver file.This change fits in for current
implementation as well as once the driver undergoes hwmod adaptation.

Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Madhusudhan Chikkature <madhu.cr@ti.com>
Cc: Adrian Hunter <adrian.hunter@nokia.com>
Cc: Benoit Cousson <b-cousson@ti.com>
Signed-off-by: Kishore Kadiyala <kishore.kadiyala@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
kishore kadiyala 2010-10-01 16:35:28 -07:00 committed by Tony Lindgren
parent 531c21ba1a
commit 91a0b089f8
4 changed files with 12 additions and 5 deletions
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8
arch/arm/mach-omap2/devices.c
View file

@ -817,13 +817,13 @@ void __init omap2_init_mmc(struct omap_mmc_platform_data **mmc_data,
case 3:
if (!cpu_is_omap44xx())
return;
base = OMAP4_MMC4_BASE + OMAP4_MMC_REG_OFFSET;
base = OMAP4_MMC4_BASE;
irq = OMAP44XX_IRQ_MMC4;
break;
case 4:
if (!cpu_is_omap44xx())
return;
base = OMAP4_MMC5_BASE + OMAP4_MMC_REG_OFFSET;
base = OMAP4_MMC5_BASE;
irq = OMAP44XX_IRQ_MMC5;
break;
default:
@ -834,10 +834,8 @@ void __init omap2_init_mmc(struct omap_mmc_platform_data **mmc_data,
size = OMAP2420_MMC_SIZE;
name = "mmci-omap";
} else if (cpu_is_omap44xx()) {
if (i < 3) {
base += OMAP4_MMC_REG_OFFSET;
if (i < 3)
irq += OMAP44XX_IRQ_GIC_START;
}
size = OMAP4_HSMMC_SIZE;
name = "mmci-omap-hs";
} else {

4
arch/arm/mach-omap2/hsmmc.c
View file

@ -266,6 +266,10 @@ void __init omap2_hsmmc_init(struct omap2_hsmmc_info *controllers)
mmc->slots[0].caps = c->caps;
mmc->slots[0].internal_clock = !c->ext_clock;
mmc->dma_mask = 0xffffffff;
if (cpu_is_omap44xx())
mmc->reg_offset = OMAP4_MMC_REG_OFFSET;
else
mmc->reg_offset = 0;
mmc->get_context_loss_count = hsmmc_get_context_loss;

3
arch/arm/plat-omap/include/plat/mmc.h
View file

@ -71,6 +71,9 @@ struct omap_mmc_platform_data {
u64 dma_mask;
/* Register offset deviation */
u16 reg_offset;
struct omap_mmc_slot_data {
/* 4/8 wires and any additional host capabilities

2
drivers/mmc/host/omap_hsmmc.c
View file

@ -2014,6 +2014,8 @@ static int __init omap_hsmmc_probe(struct platform_device *pdev)
if (res == NULL || irq < 0)
return -ENXIO;
res->start += pdata->reg_offset;
res->end += pdata->reg_offset;
res = request_mem_region(res->start, res->end - res->start + 1,
pdev->name);
if (res == NULL)