#include <linux/err.h>
#include <linux/mtd/nand.h>
#include <linux/mtd/fsmc.h>
+#include <linux/pinctrl/machine.h>
+#include <linux/pinctrl/pinmux.h>
+#include <linux/dma-mapping.h>
#include <asm/types.h>
#include <asm/setup.h>
.length = SZ_32K,
.type = MT_DEVICE,
},
- {
- .virtual = 0xffff2000, /* TCM memory */
- .pfn = __phys_to_pfn(0xffff2000),
- .length = SZ_16K,
- .type = MT_DEVICE,
- },
-
- /*
- * This overlaps with the IRQ vectors etc at 0xffff0000, so these
- * may have to be moved to 0x00000000 in order to use the ROM.
- */
- /*
- {
- .virtual = U300_BOOTROM_VIRT_BASE,
- .pfn = __phys_to_pfn(U300_BOOTROM_PHYS_BASE),
- .length = SZ_64K,
- .type = MT_ROM,
- },
- */
};
void __init u300_map_io(void)
{
iotable_init(u300_io_desc, ARRAY_SIZE(u300_io_desc));
+ /* We enable a real big DMA buffer if need be. */
+ init_consistent_dma_size(SZ_4M);
}
/*
}
};
-/* TODO: These should be protected by suitable #ifdef's */
-static struct resource ave_resources[] = {
- {
- .name = "AVE3e I/O Area",
- .start = U300_VIDEOENC_BASE,
- .end = U300_VIDEOENC_BASE + SZ_512K - 1,
- .flags = IORESOURCE_MEM,
- },
- {
- .name = "AVE3e IRQ0",
- .start = IRQ_U300_VIDEO_ENC_0,
- .end = IRQ_U300_VIDEO_ENC_0,
- .flags = IORESOURCE_IRQ,
- },
- {
- .name = "AVE3e IRQ1",
- .start = IRQ_U300_VIDEO_ENC_1,
- .end = IRQ_U300_VIDEO_ENC_1,
- .flags = IORESOURCE_IRQ,
- },
- {
- .name = "AVE3e Physmem Area",
- .start = 0, /* 0 will be remapped to reserved memory */
- .end = SZ_1M - 1,
- .flags = IORESOURCE_MEM,
- },
- /*
- * The AVE3e requires two regions of 256MB that it considers
- * "invisible". The hardware will not be able to access these
- * addresses, so they should never point to system RAM.
- */
- {
- .name = "AVE3e Reserved 0",
- .start = 0xd0000000,
- .end = 0xd0000000 + SZ_256M - 1,
- .flags = IORESOURCE_MEM,
- },
- {
- .name = "AVE3e Reserved 1",
- .start = 0xe0000000,
- .end = 0xe0000000 + SZ_256M - 1,
- .flags = IORESOURCE_MEM,
- },
-};
-
static struct resource dma_resource[] = {
{
.start = U300_DMAC_BASE,
.max_channels = U300_DMA_CHANNELS,
};
+static struct resource pinmux_resources[] = {
+ {
+ .start = U300_SYSCON_BASE,
+ .end = U300_SYSCON_BASE + SZ_4K - 1,
+ .flags = IORESOURCE_MEM,
+ },
+};
+
static struct platform_device wdog_device = {
.name = "coh901327_wdog",
.id = -1,
},
};
-static struct platform_device ave_device = {
- .name = "video_enc",
- .id = -1,
- .num_resources = ARRAY_SIZE(ave_resources),
- .resource = ave_resources,
-};
-
static struct platform_device dma_device = {
.name = "coh901318",
.id = -1,
},
};
+static struct platform_device pinmux_device = {
+ .name = "pinmux-u300",
+ .id = -1,
+ .num_resources = ARRAY_SIZE(pinmux_resources),
+ .resource = pinmux_resources,
+};
+
+/* Pinmux settings */
+static struct pinmux_map u300_pinmux_map[] = {
+ /* anonymous maps for chip power and EMIFs */
+ PINMUX_MAP_PRIMARY_SYS_HOG("POWER", "power"),
+ PINMUX_MAP_PRIMARY_SYS_HOG("EMIF0", "emif0"),
+ PINMUX_MAP_PRIMARY_SYS_HOG("EMIF1", "emif1"),
+ /* per-device maps for MMC/SD, SPI and UART */
+ PINMUX_MAP_PRIMARY("MMCSD", "mmc0", "mmci"),
+ PINMUX_MAP_PRIMARY("SPI", "spi0", "pl022"),
+ PINMUX_MAP_PRIMARY("UART0", "uart0", "uart0"),
+};
+
+struct u300_mux_hog {
+ const char *name;
+ struct device *dev;
+ struct pinmux *pmx;
+};
+
+static struct u300_mux_hog u300_mux_hogs[] = {
+ {
+ .name = "uart0",
+ .dev = &uart0_device.dev,
+ },
+ {
+ .name = "spi0",
+ .dev = &pl022_device.dev,
+ },
+ {
+ .name = "mmc0",
+ .dev = &mmcsd_device.dev,
+ },
+};
+
+static int __init u300_pinmux_fetch(void)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(u300_mux_hogs); i++) {
+ struct pinmux *pmx;
+ int ret;
+
+ pmx = pinmux_get(u300_mux_hogs[i].dev, NULL);
+ if (IS_ERR(pmx)) {
+ pr_err("u300: could not get pinmux hog %s\n",
+ u300_mux_hogs[i].name);
+ continue;
+ }
+ ret = pinmux_enable(pmx);
+ if (ret) {
+ pr_err("u300: could enable pinmux hog %s\n",
+ u300_mux_hogs[i].name);
+ continue;
+ }
+ u300_mux_hogs[i].pmx = pmx;
+ }
+ return 0;
+}
+subsys_initcall(u300_pinmux_fetch);
+
/*
* Notice that AMBA devices are initialized before platform devices.
*
&gpio_device,
&nand_device,
&wdog_device,
- &ave_device
+ &pinmux_device,
};
-
/*
* Interrupts: the U300 platforms have two pl190 ARM PrimeCells connected
* together so some interrupts are connected to the first one and some
u300_assign_physmem();
+ /* Initialize pinmuxing */
+ pinmux_register_mappings(u300_pinmux_map,
+ ARRAY_SIZE(u300_pinmux_map));
+
/* Register subdevices on the I2C buses */
u300_i2c_register_board_devices();
/* Register subdevices on the SPI bus */
u300_spi_register_board_devices();
-#ifndef CONFIG_MACH_U300_SEMI_IS_SHARED
- /*
- * Enable SEMI self refresh. Self-refresh of the SDRAM is entered when
- * both subsystems are requesting this mode.
- * If we not share the Acc SDRAM, this is never the case. Therefore
- * enable it here from the App side.
- */
+ /* Enable SEMI self refresh */
val = readw(U300_SYSCON_VBASE + U300_SYSCON_SMCR) |
U300_SYSCON_SMCR_SEMI_SREFREQ_ENABLE;
writew(val, U300_SYSCON_VBASE + U300_SYSCON_SMCR);
-#endif /* CONFIG_MACH_U300_SEMI_IS_SHARED */
}
static int core_module_init(void)
git.openpandora.org / pandora-kernel.git / blobdiff