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-rw-r--r--arch/arm/mach-davinci/Kconfig8
-rw-r--r--arch/arm/mach-davinci/Makefile1
-rw-r--r--arch/arm/mach-davinci/board-dm355-evm.c2
-rw-r--r--arch/arm/mach-davinci/board-dm355-leopard.c2
-rw-r--r--arch/arm/mach-davinci/board-dm365-evm.c4
-rw-r--r--arch/arm/mach-davinci/board-dm644x-evm.c2
-rw-r--r--arch/arm/mach-davinci/board-neuros-osd2.c2
-rw-r--r--arch/arm/mach-davinci/da850.c17
-rw-r--r--arch/arm/mach-davinci/da8xx-dt.c66
-rw-r--r--arch/arm/mach-davinci/devices-da8xx.c77
-rw-r--r--arch/arm/mach-davinci/dm355.c6
-rw-r--r--arch/arm/mach-davinci/dm365.c6
-rw-r--r--arch/arm/mach-davinci/dm644x.c6
-rw-r--r--arch/arm/mach-davinci/dm646x.c6
-rw-r--r--arch/arm/mach-davinci/include/mach/common.h2
-rw-r--r--arch/arm/mach-davinci/include/mach/da8xx.h3
-rw-r--r--arch/arm/mach-davinci/include/mach/serial.h1
-rw-r--r--arch/arm/mach-davinci/include/mach/sram.h3
-rw-r--r--arch/arm/mach-davinci/serial.c39
-rw-r--r--arch/arm/mach-davinci/sram.c23
-rw-r--r--arch/arm/mach-davinci/time.c4
21 files changed, 220 insertions, 60 deletions
diff --git a/arch/arm/mach-davinci/Kconfig b/arch/arm/mach-davinci/Kconfig
index f8eecb959413..0153950f6068 100644
--- a/arch/arm/mach-davinci/Kconfig
+++ b/arch/arm/mach-davinci/Kconfig
@@ -58,6 +58,14 @@ config ARCH_DAVINCI_TNETV107X
comment "DaVinci Board Type"
+config MACH_DA8XX_DT
+ bool "Support DA8XX platforms using device tree"
+ default y
+ depends on ARCH_DAVINCI_DA8XX
+ help
+ Say y here to include support for TI DaVinci DA850 based using
+ Flattened Device Tree. More information at Documentation/devicetree
+
config MACH_DAVINCI_EVM
bool "TI DM644x EVM"
default ARCH_DAVINCI_DM644x
diff --git a/arch/arm/mach-davinci/Makefile b/arch/arm/mach-davinci/Makefile
index 2227effcb0e9..fb5c1aa98a63 100644
--- a/arch/arm/mach-davinci/Makefile
+++ b/arch/arm/mach-davinci/Makefile
@@ -22,6 +22,7 @@ obj-$(CONFIG_AINTC) += irq.o
obj-$(CONFIG_CP_INTC) += cp_intc.o
# Board specific
+obj-$(CONFIG_MACH_DA8XX_DT) += da8xx-dt.o
obj-$(CONFIG_MACH_DAVINCI_EVM) += board-dm644x-evm.o
obj-$(CONFIG_MACH_SFFSDR) += board-sffsdr.o
obj-$(CONFIG_MACH_NEUROS_OSD2) += board-neuros-osd2.o
diff --git a/arch/arm/mach-davinci/board-dm355-evm.c b/arch/arm/mach-davinci/board-dm355-evm.c
index 88ebea89abdf..cdf8d0746e79 100644
--- a/arch/arm/mach-davinci/board-dm355-evm.c
+++ b/arch/arm/mach-davinci/board-dm355-evm.c
@@ -324,7 +324,7 @@ static __init void dm355_evm_init(void)
if (IS_ERR(aemif))
WARN("%s: unable to get AEMIF clock\n", __func__);
else
- clk_enable(aemif);
+ clk_prepare_enable(aemif);
platform_add_devices(davinci_evm_devices,
ARRAY_SIZE(davinci_evm_devices));
diff --git a/arch/arm/mach-davinci/board-dm355-leopard.c b/arch/arm/mach-davinci/board-dm355-leopard.c
index 2f88103c6459..d41954507fc2 100644
--- a/arch/arm/mach-davinci/board-dm355-leopard.c
+++ b/arch/arm/mach-davinci/board-dm355-leopard.c
@@ -246,7 +246,7 @@ static __init void dm355_leopard_init(void)
if (IS_ERR(aemif))
WARN("%s: unable to get AEMIF clock\n", __func__);
else
- clk_enable(aemif);
+ clk_prepare_enable(aemif);
platform_add_devices(davinci_leopard_devices,
ARRAY_SIZE(davinci_leopard_devices));
diff --git a/arch/arm/mach-davinci/board-dm365-evm.c b/arch/arm/mach-davinci/board-dm365-evm.c
index 1b4a8adcfdc9..5d49c75388ca 100644
--- a/arch/arm/mach-davinci/board-dm365-evm.c
+++ b/arch/arm/mach-davinci/board-dm365-evm.c
@@ -478,7 +478,7 @@ static void __init evm_init_cpld(void)
aemif_clk = clk_get(NULL, "aemif");
if (IS_ERR(aemif_clk))
return;
- clk_enable(aemif_clk);
+ clk_prepare_enable(aemif_clk);
if (request_mem_region(DM365_ASYNC_EMIF_DATA_CE1_BASE, SECTION_SIZE,
"cpld") == NULL)
@@ -489,7 +489,7 @@ static void __init evm_init_cpld(void)
SECTION_SIZE);
fail:
pr_err("ERROR: can't map CPLD\n");
- clk_disable(aemif_clk);
+ clk_disable_unprepare(aemif_clk);
return;
}
diff --git a/arch/arm/mach-davinci/board-dm644x-evm.c b/arch/arm/mach-davinci/board-dm644x-evm.c
index f22572cee49d..a84dfcbc1154 100644
--- a/arch/arm/mach-davinci/board-dm644x-evm.c
+++ b/arch/arm/mach-davinci/board-dm644x-evm.c
@@ -776,7 +776,7 @@ static __init void davinci_evm_init(void)
struct davinci_soc_info *soc_info = &davinci_soc_info;
aemif_clk = clk_get(NULL, "aemif");
- clk_enable(aemif_clk);
+ clk_prepare_enable(aemif_clk);
if (HAS_ATA) {
if (HAS_NAND || HAS_NOR)
diff --git a/arch/arm/mach-davinci/board-neuros-osd2.c b/arch/arm/mach-davinci/board-neuros-osd2.c
index 144bf31d68dd..3e3e3afebf88 100644
--- a/arch/arm/mach-davinci/board-neuros-osd2.c
+++ b/arch/arm/mach-davinci/board-neuros-osd2.c
@@ -188,7 +188,7 @@ static __init void davinci_ntosd2_init(void)
struct davinci_soc_info *soc_info = &davinci_soc_info;
aemif_clk = clk_get(NULL, "aemif");
- clk_enable(aemif_clk);
+ clk_prepare_enable(aemif_clk);
if (HAS_ATA) {
if (HAS_NAND)
diff --git a/arch/arm/mach-davinci/da850.c b/arch/arm/mach-davinci/da850.c
index b90c172d5541..68c5fe01857c 100644
--- a/arch/arm/mach-davinci/da850.c
+++ b/arch/arm/mach-davinci/da850.c
@@ -212,6 +212,12 @@ static struct clk tptc2_clk = {
.flags = ALWAYS_ENABLED,
};
+static struct clk pruss_clk = {
+ .name = "pruss",
+ .parent = &pll0_sysclk2,
+ .lpsc = DA8XX_LPSC0_PRUSS,
+};
+
static struct clk uart0_clk = {
.name = "uart0",
.parent = &pll0_sysclk2,
@@ -385,6 +391,7 @@ static struct clk_lookup da850_clks[] = {
CLK(NULL, "tptc1", &tptc1_clk),
CLK(NULL, "tpcc1", &tpcc1_clk),
CLK(NULL, "tptc2", &tptc2_clk),
+ CLK("pruss_uio", "pruss", &pruss_clk),
CLK(NULL, "uart0", &uart0_clk),
CLK(NULL, "uart1", &uart1_clk),
CLK(NULL, "uart2", &uart2_clk),
@@ -781,12 +788,6 @@ static struct map_desc da850_io_desc[] = {
.length = DA8XX_CP_INTC_SIZE,
.type = MT_DEVICE
},
- {
- .virtual = SRAM_VIRT,
- .pfn = __phys_to_pfn(DA8XX_ARM_RAM_BASE),
- .length = SZ_8K,
- .type = MT_DEVICE
- },
};
static u32 da850_psc_bases[] = { DA8XX_PSC0_BASE, DA8XX_PSC1_BASE };
@@ -1239,8 +1240,8 @@ static struct davinci_soc_info davinci_soc_info_da850 = {
.gpio_irq = IRQ_DA8XX_GPIO0,
.serial_dev = &da8xx_serial_device,
.emac_pdata = &da8xx_emac_pdata,
- .sram_dma = DA8XX_ARM_RAM_BASE,
- .sram_len = SZ_8K,
+ .sram_dma = DA8XX_SHARED_RAM_BASE,
+ .sram_len = SZ_128K,
};
void __init da850_init(void)
diff --git a/arch/arm/mach-davinci/da8xx-dt.c b/arch/arm/mach-davinci/da8xx-dt.c
new file mode 100644
index 000000000000..37c27af18fa0
--- /dev/null
+++ b/arch/arm/mach-davinci/da8xx-dt.c
@@ -0,0 +1,66 @@
+/*
+ * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ * Modified from mach-omap/omap2/board-generic.c
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/io.h>
+#include <linux/of_irq.h>
+#include <linux/of_platform.h>
+#include <linux/irqdomain.h>
+
+#include <asm/mach/arch.h>
+
+#include <mach/common.h>
+#include <mach/cp_intc.h>
+#include <mach/da8xx.h>
+
+#define DA8XX_NUM_UARTS 3
+
+void __init da8xx_uart_clk_enable(void)
+{
+ int i;
+ for (i = 0; i < DA8XX_NUM_UARTS; i++)
+ davinci_serial_setup_clk(i, NULL);
+}
+
+static struct of_device_id da8xx_irq_match[] __initdata = {
+ { .compatible = "ti,cp-intc", .data = cp_intc_of_init, },
+ { }
+};
+
+static void __init da8xx_init_irq(void)
+{
+ of_irq_init(da8xx_irq_match);
+}
+
+#ifdef CONFIG_ARCH_DAVINCI_DA850
+
+static void __init da850_init_machine(void)
+{
+ of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
+
+ da8xx_uart_clk_enable();
+}
+
+static const char *da850_boards_compat[] __initdata = {
+ "enbw,cmc",
+ "ti,da850-evm",
+ "ti,da850",
+ NULL,
+};
+
+DT_MACHINE_START(DA850_DT, "Generic DA850/OMAP-L138/AM18x")
+ .map_io = da850_init,
+ .init_irq = da8xx_init_irq,
+ .timer = &davinci_timer,
+ .init_machine = da850_init_machine,
+ .dt_compat = da850_boards_compat,
+ .init_late = davinci_init_late,
+ .restart = da8xx_restart,
+MACHINE_END
+
+#endif
diff --git a/arch/arm/mach-davinci/devices-da8xx.c b/arch/arm/mach-davinci/devices-da8xx.c
index bd2f72b414bc..46c9a0c09ae5 100644
--- a/arch/arm/mach-davinci/devices-da8xx.c
+++ b/arch/arm/mach-davinci/devices-da8xx.c
@@ -22,6 +22,7 @@
#include <mach/time.h>
#include <mach/da8xx.h>
#include <mach/cpuidle.h>
+#include <mach/sram.h>
#include "clock.h"
#include "asp.h"
@@ -32,6 +33,7 @@
#define DA8XX_WDOG_BASE 0x01c21000 /* DA8XX_TIMER64P1_BASE */
#define DA8XX_I2C0_BASE 0x01c22000
#define DA8XX_RTC_BASE 0x01c23000
+#define DA8XX_PRUSS_MEM_BASE 0x01c30000
#define DA8XX_MMCSD0_BASE 0x01c40000
#define DA8XX_SPI0_BASE 0x01c41000
#define DA830_SPI1_BASE 0x01e12000
@@ -518,6 +520,75 @@ void __init da8xx_register_mcasp(int id, struct snd_platform_data *pdata)
}
}
+static struct resource da8xx_pruss_resources[] = {
+ {
+ .start = DA8XX_PRUSS_MEM_BASE,
+ .end = DA8XX_PRUSS_MEM_BASE + 0xFFFF,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .start = IRQ_DA8XX_EVTOUT0,
+ .end = IRQ_DA8XX_EVTOUT0,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .start = IRQ_DA8XX_EVTOUT1,
+ .end = IRQ_DA8XX_EVTOUT1,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .start = IRQ_DA8XX_EVTOUT2,
+ .end = IRQ_DA8XX_EVTOUT2,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .start = IRQ_DA8XX_EVTOUT3,
+ .end = IRQ_DA8XX_EVTOUT3,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .start = IRQ_DA8XX_EVTOUT4,
+ .end = IRQ_DA8XX_EVTOUT4,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .start = IRQ_DA8XX_EVTOUT5,
+ .end = IRQ_DA8XX_EVTOUT5,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .start = IRQ_DA8XX_EVTOUT6,
+ .end = IRQ_DA8XX_EVTOUT6,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .start = IRQ_DA8XX_EVTOUT7,
+ .end = IRQ_DA8XX_EVTOUT7,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct uio_pruss_pdata da8xx_uio_pruss_pdata = {
+ .pintc_base = 0x4000,
+};
+
+static struct platform_device da8xx_uio_pruss_dev = {
+ .name = "pruss_uio",
+ .id = -1,
+ .num_resources = ARRAY_SIZE(da8xx_pruss_resources),
+ .resource = da8xx_pruss_resources,
+ .dev = {
+ .coherent_dma_mask = DMA_BIT_MASK(32),
+ .platform_data = &da8xx_uio_pruss_pdata,
+ }
+};
+
+int __init da8xx_register_uio_pruss(void)
+{
+ da8xx_uio_pruss_pdata.sram_pool = sram_get_gen_pool();
+ return platform_device_register(&da8xx_uio_pruss_dev);
+}
+
static const struct display_panel disp_panel = {
QVGA,
16,
@@ -900,7 +971,7 @@ static int da850_sata_init(struct device *dev, void __iomem *addr)
if (IS_ERR(da850_sata_clk))
return PTR_ERR(da850_sata_clk);
- ret = clk_enable(da850_sata_clk);
+ ret = clk_prepare_enable(da850_sata_clk);
if (ret)
goto err0;
@@ -931,7 +1002,7 @@ static int da850_sata_init(struct device *dev, void __iomem *addr)
return 0;
err1:
- clk_disable(da850_sata_clk);
+ clk_disable_unprepare(da850_sata_clk);
err0:
clk_put(da850_sata_clk);
return ret;
@@ -939,7 +1010,7 @@ err0:
static void da850_sata_exit(struct device *dev)
{
- clk_disable(da850_sata_clk);
+ clk_disable_unprepare(da850_sata_clk);
clk_put(da850_sata_clk);
}
diff --git a/arch/arm/mach-davinci/dm355.c b/arch/arm/mach-davinci/dm355.c
index a255434908db..b49c3b77d55e 100644
--- a/arch/arm/mach-davinci/dm355.c
+++ b/arch/arm/mach-davinci/dm355.c
@@ -758,12 +758,6 @@ static struct map_desc dm355_io_desc[] = {
.length = IO_SIZE,
.type = MT_DEVICE
},
- {
- .virtual = SRAM_VIRT,
- .pfn = __phys_to_pfn(0x00010000),
- .length = SZ_32K,
- .type = MT_MEMORY_NONCACHED,
- },
};
/* Contents of JTAG ID register used to identify exact cpu type */
diff --git a/arch/arm/mach-davinci/dm365.c b/arch/arm/mach-davinci/dm365.c
index b680c832e0ba..6c3980540be0 100644
--- a/arch/arm/mach-davinci/dm365.c
+++ b/arch/arm/mach-davinci/dm365.c
@@ -985,12 +985,6 @@ static struct map_desc dm365_io_desc[] = {
.length = IO_SIZE,
.type = MT_DEVICE
},
- {
- .virtual = SRAM_VIRT,
- .pfn = __phys_to_pfn(0x00010000),
- .length = SZ_32K,
- .type = MT_MEMORY_NONCACHED,
- },
};
static struct resource dm365_ks_resources[] = {
diff --git a/arch/arm/mach-davinci/dm644x.c b/arch/arm/mach-davinci/dm644x.c
index 14e9947bad6e..11c79a3362ef 100644
--- a/arch/arm/mach-davinci/dm644x.c
+++ b/arch/arm/mach-davinci/dm644x.c
@@ -785,12 +785,6 @@ static struct map_desc dm644x_io_desc[] = {
.length = IO_SIZE,
.type = MT_DEVICE
},
- {
- .virtual = SRAM_VIRT,
- .pfn = __phys_to_pfn(0x00008000),
- .length = SZ_16K,
- .type = MT_MEMORY_NONCACHED,
- },
};
/* Contents of JTAG ID register used to identify exact cpu type */
diff --git a/arch/arm/mach-davinci/dm646x.c b/arch/arm/mach-davinci/dm646x.c
index 97c0f8e555bd..ac7b431c4c8e 100644
--- a/arch/arm/mach-davinci/dm646x.c
+++ b/arch/arm/mach-davinci/dm646x.c
@@ -756,12 +756,6 @@ static struct map_desc dm646x_io_desc[] = {
.length = IO_SIZE,
.type = MT_DEVICE
},
- {
- .virtual = SRAM_VIRT,
- .pfn = __phys_to_pfn(0x00010000),
- .length = SZ_32K,
- .type = MT_MEMORY_NONCACHED,
- },
};
/* Contents of JTAG ID register used to identify exact cpu type */
diff --git a/arch/arm/mach-davinci/include/mach/common.h b/arch/arm/mach-davinci/include/mach/common.h
index bdc4aa8e672a..046c7238a3d6 100644
--- a/arch/arm/mach-davinci/include/mach/common.h
+++ b/arch/arm/mach-davinci/include/mach/common.h
@@ -104,8 +104,6 @@ int davinci_pm_init(void);
static inline int davinci_pm_init(void) { return 0; }
#endif
-/* standard place to map on-chip SRAMs; they *may* support DMA */
-#define SRAM_VIRT 0xfffe0000
#define SRAM_SIZE SZ_128K
#endif /* __ARCH_ARM_MACH_DAVINCI_COMMON_H */
diff --git a/arch/arm/mach-davinci/include/mach/da8xx.h b/arch/arm/mach-davinci/include/mach/da8xx.h
index aaccdc4528fc..700d311c6854 100644
--- a/arch/arm/mach-davinci/include/mach/da8xx.h
+++ b/arch/arm/mach-davinci/include/mach/da8xx.h
@@ -26,6 +26,7 @@
#include <linux/platform_data/mmc-davinci.h>
#include <linux/platform_data/usb-davinci.h>
#include <linux/platform_data/spi-davinci.h>
+#include <linux/platform_data/uio_pruss.h>
#include <media/davinci/vpif_types.h>
@@ -72,6 +73,7 @@ extern unsigned int da850_max_speed;
#define DA8XX_AEMIF_CS2_BASE 0x60000000
#define DA8XX_AEMIF_CS3_BASE 0x62000000
#define DA8XX_AEMIF_CTL_BASE 0x68000000
+#define DA8XX_SHARED_RAM_BASE 0x80000000
#define DA8XX_ARM_RAM_BASE 0xffff0000
void __init da830_init(void);
@@ -86,6 +88,7 @@ int da8xx_register_watchdog(void);
int da8xx_register_usb20(unsigned mA, unsigned potpgt);
int da8xx_register_usb11(struct da8xx_ohci_root_hub *pdata);
int da8xx_register_emac(void);
+int da8xx_register_uio_pruss(void);
int da8xx_register_lcdc(struct da8xx_lcdc_platform_data *pdata);
int da8xx_register_mmcsd0(struct davinci_mmc_config *config);
int da850_register_mmcsd1(struct davinci_mmc_config *config);
diff --git a/arch/arm/mach-davinci/include/mach/serial.h b/arch/arm/mach-davinci/include/mach/serial.h
index 46b3cd11c3c2..2d9d921e8b01 100644
--- a/arch/arm/mach-davinci/include/mach/serial.h
+++ b/arch/arm/mach-davinci/include/mach/serial.h
@@ -43,6 +43,7 @@ struct davinci_uart_config {
};
extern int davinci_serial_init(struct davinci_uart_config *);
+extern int davinci_serial_setup_clk(unsigned instance, unsigned int *rate);
#endif
#endif /* __ASM_ARCH_SERIAL_H */
diff --git a/arch/arm/mach-davinci/include/mach/sram.h b/arch/arm/mach-davinci/include/mach/sram.h
index 111f7cc71e07..4e5db56218b8 100644
--- a/arch/arm/mach-davinci/include/mach/sram.h
+++ b/arch/arm/mach-davinci/include/mach/sram.h
@@ -24,4 +24,7 @@
extern void *sram_alloc(size_t len, dma_addr_t *dma);
extern void sram_free(void *addr, size_t len);
+/* Get the struct gen_pool * for use in platform data */
+extern struct gen_pool *sram_get_gen_pool(void);
+
#endif /* __MACH_SRAM_H */
diff --git a/arch/arm/mach-davinci/serial.c b/arch/arm/mach-davinci/serial.c
index 1875740fe27c..f2625814c3c9 100644
--- a/arch/arm/mach-davinci/serial.c
+++ b/arch/arm/mach-davinci/serial.c
@@ -70,11 +70,33 @@ static void __init davinci_serial_reset(struct plat_serial8250_port *p)
UART_DM646X_SCR_TX_WATERMARK);
}
-int __init davinci_serial_init(struct davinci_uart_config *info)
+/* Enable UART clock and obtain its rate */
+int __init davinci_serial_setup_clk(unsigned instance, unsigned int *rate)
{
- int i;
char name[16];
- struct clk *uart_clk;
+ struct clk *clk;
+ struct davinci_soc_info *soc_info = &davinci_soc_info;
+ struct device *dev = &soc_info->serial_dev->dev;
+
+ sprintf(name, "uart%d", instance);
+ clk = clk_get(dev, name);
+ if (IS_ERR(clk)) {
+ pr_err("%s:%d: failed to get UART%d clock\n",
+ __func__, __LINE__, instance);
+ return PTR_ERR(clk);
+ }
+
+ clk_prepare_enable(clk);
+
+ if (rate)
+ *rate = clk_get_rate(clk);
+
+ return 0;
+}
+
+int __init davinci_serial_init(struct davinci_uart_config *info)
+{
+ int i, ret;
struct davinci_soc_info *soc_info = &davinci_soc_info;
struct device *dev = &soc_info->serial_dev->dev;
struct plat_serial8250_port *p = dev->platform_data;
@@ -87,16 +109,9 @@ int __init davinci_serial_init(struct davinci_uart_config *info)
if (!(info->enabled_uarts & (1 << i)))
continue;
- sprintf(name, "uart%d", i);
- uart_clk = clk_get(dev, name);
- if (IS_ERR(uart_clk)) {
- printk(KERN_ERR "%s:%d: failed to get UART%d clock\n",
- __func__, __LINE__, i);
+ ret = davinci_serial_setup_clk(i, &p->uartclk);
+ if (ret)
continue;
- }
-
- clk_enable(uart_clk);
- p->uartclk = clk_get_rate(uart_clk);
if (!p->membase && p->mapbase) {
p->membase = ioremap(p->mapbase, SZ_4K);
diff --git a/arch/arm/mach-davinci/sram.c b/arch/arm/mach-davinci/sram.c
index db0f7787faf1..c5f7ee5cc80a 100644
--- a/arch/arm/mach-davinci/sram.c
+++ b/arch/arm/mach-davinci/sram.c
@@ -10,6 +10,7 @@
*/
#include <linux/module.h>
#include <linux/init.h>
+#include <linux/io.h>
#include <linux/genalloc.h>
#include <mach/common.h>
@@ -17,6 +18,11 @@
static struct gen_pool *sram_pool;
+struct gen_pool *sram_get_gen_pool(void)
+{
+ return sram_pool;
+}
+
void *sram_alloc(size_t len, dma_addr_t *dma)
{
unsigned long vaddr;
@@ -32,7 +38,7 @@ void *sram_alloc(size_t len, dma_addr_t *dma)
return NULL;
if (dma)
- *dma = dma_base + (vaddr - SRAM_VIRT);
+ *dma = gen_pool_virt_to_phys(sram_pool, vaddr);
return (void *)vaddr;
}
@@ -53,8 +59,10 @@ EXPORT_SYMBOL(sram_free);
*/
static int __init sram_init(void)
{
+ phys_addr_t phys = davinci_soc_info.sram_dma;
unsigned len = davinci_soc_info.sram_len;
int status = 0;
+ void *addr;
if (len) {
len = min_t(unsigned, len, SRAM_SIZE);
@@ -62,8 +70,17 @@ static int __init sram_init(void)
if (!sram_pool)
status = -ENOMEM;
}
- if (sram_pool)
- status = gen_pool_add(sram_pool, SRAM_VIRT, len, -1);
+
+ if (sram_pool) {
+ addr = ioremap(phys, len);
+ if (!addr)
+ return -ENOMEM;
+ status = gen_pool_add_virt(sram_pool, (unsigned)addr,
+ phys, len, -1);
+ if (status < 0)
+ iounmap(addr);
+ }
+
WARN_ON(status < 0);
return status;
}
diff --git a/arch/arm/mach-davinci/time.c b/arch/arm/mach-davinci/time.c
index 75da315b6587..9847938785ca 100644
--- a/arch/arm/mach-davinci/time.c
+++ b/arch/arm/mach-davinci/time.c
@@ -379,7 +379,7 @@ static void __init davinci_timer_init(void)
timer_clk = clk_get(NULL, "timer0");
BUG_ON(IS_ERR(timer_clk));
- clk_enable(timer_clk);
+ clk_prepare_enable(timer_clk);
/* init timer hw */
timer_init();
@@ -429,7 +429,7 @@ void davinci_watchdog_reset(struct platform_device *pdev)
wd_clk = clk_get(&pdev->dev, NULL);
if (WARN_ON(IS_ERR(wd_clk)))
return;
- clk_enable(wd_clk);
+ clk_prepare_enable(wd_clk);
/* disable, internal clock source */
__raw_writel(0, base + TCR);
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-11 17:45:17 +0300