[PATCH v2 5/7] ARM: davinci: Add support for PRUSS on DA850
Matt Porter
mporter at ti.com
Fri Sep 28 15:37:50 EDT 2012
Adds PRUSS clock, registers the L3RAM pool, and registers the
platform device for uio_pruss on DA850.
Signed-off-by: Matt Porter <mporter at ti.com>
---
arch/arm/mach-davinci/board-da850-evm.c | 12 +++++
arch/arm/mach-davinci/da850.c | 9 ++++
arch/arm/mach-davinci/devices-da8xx.c | 66 ++++++++++++++++++++++++++++
arch/arm/mach-davinci/include/mach/da8xx.h | 3 ++
4 files changed, 90 insertions(+)
diff --git a/arch/arm/mach-davinci/board-da850-evm.c b/arch/arm/mach-davinci/board-da850-evm.c
index 1295e61..d4f1720 100644
--- a/arch/arm/mach-davinci/board-da850-evm.c
+++ b/arch/arm/mach-davinci/board-da850-evm.c
@@ -29,6 +29,7 @@
#include <linux/regulator/machine.h>
#include <linux/regulator/tps6507x.h>
#include <linux/input/tps6507x-ts.h>
+#include <linux/platform_data/uio_pruss.h>
#include <linux/spi/spi.h>
#include <linux/spi/flash.h>
#include <linux/delay.h>
@@ -42,6 +43,7 @@
#include <mach/da8xx.h>
#include <linux/platform_data/mtd-davinci.h>
#include <mach/mux.h>
+#include <mach/sram.h>
#include <linux/platform_data/mtd-davinci-aemif.h>
#include <linux/platform_data/spi-davinci.h>
@@ -1253,6 +1255,10 @@ static __init int da850_wl12xx_init(void)
#endif /* CONFIG_DA850_WL12XX */
+struct uio_pruss_pdata da8xx_pruss_uio_pdata = {
+ .pintc_base = 0x4000,
+};
+
#define DA850EVM_SATA_REFCLKPN_RATE (100 * 1000 * 1000)
static __init void da850_evm_init(void)
@@ -1339,6 +1345,12 @@ static __init void da850_evm_init(void)
pr_warning("da850_evm_init: lcdcntl mux setup failed: %d\n",
ret);
+ da8xx_pruss_uio_pdata.l3ram_pool = sram_get_l3ram_pool();
+ ret = da8xx_register_pruss_uio(&da8xx_pruss_uio_pdata);
+ if (ret)
+ pr_warning("pruss_uio initialization failed: %d\n",
+ ret);
+
/* Handle board specific muxing for LCD here */
ret = davinci_cfg_reg_list(da850_evm_lcdc_pins);
if (ret)
diff --git a/arch/arm/mach-davinci/da850.c b/arch/arm/mach-davinci/da850.c
index 6676dee..131c175 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,
@@ -378,6 +384,7 @@ static struct clk_lookup da850_clks[] = {
CLK(NULL, "tptc1", &tptc1_clk),
CLK(NULL, "tpcc1", &tpcc1_clk),
CLK(NULL, "tptc2", &tptc2_clk),
+ CLK(NULL, "pruss", &pruss_clk),
CLK(NULL, "uart0", &uart0_clk),
CLK(NULL, "uart1", &uart1_clk),
CLK(NULL, "uart2", &uart2_clk),
@@ -1089,6 +1096,8 @@ static struct davinci_soc_info davinci_soc_info_da850 = {
.emac_pdata = &da8xx_emac_pdata,
.sram_dma = DA8XX_ARM_RAM_BASE,
.sram_len = SZ_8K,
+ .l3ram_dma = DA8XX_SHARED_RAM_BASE,
+ .l3ram_len = SZ_128K,
};
void __init da850_init(void)
diff --git a/arch/arm/mach-davinci/devices-da8xx.c b/arch/arm/mach-davinci/devices-da8xx.c
index bd2f72b..7c2e0d2 100644
--- a/arch/arm/mach-davinci/devices-da8xx.c
+++ b/arch/arm/mach-davinci/devices-da8xx.c
@@ -518,6 +518,72 @@ void __init da8xx_register_mcasp(int id, struct snd_platform_data *pdata)
}
}
+#define DA8XX_PRUSS_MEM_BASE 0x01C30000
+
+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 platform_device da8xx_pruss_uio_dev = {
+ .name = "pruss_uio",
+ .id = -1,
+ .num_resources = ARRAY_SIZE(da8xx_pruss_resources),
+ .resource = da8xx_pruss_resources,
+ .dev = {
+ .coherent_dma_mask = 0xffffffff,
+ }
+};
+
+int __init da8xx_register_pruss_uio(struct uio_pruss_pdata *config)
+{
+ da8xx_pruss_uio_dev.dev.platform_data = config;
+ return platform_device_register(&da8xx_pruss_uio_dev);
+}
+
static const struct display_panel disp_panel = {
QVGA,
16,
diff --git a/arch/arm/mach-davinci/include/mach/da8xx.h b/arch/arm/mach-davinci/include/mach/da8xx.h
index c9ee723..5320e12 100644
--- a/arch/arm/mach-davinci/include/mach/da8xx.h
+++ b/arch/arm/mach-davinci/include/mach/da8xx.h
@@ -25,6 +25,7 @@
#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>
extern void __iomem *da8xx_syscfg0_base;
extern void __iomem *da8xx_syscfg1_base;
@@ -69,6 +70,7 @@ extern unsigned int da850_max_speed;
#define DA8XX_AEMIF_CS3_BASE 0x62000000
#define DA8XX_AEMIF_CTL_BASE 0x68000000
#define DA8XX_ARM_RAM_BASE 0xffff0000
+#define DA8XX_SHARED_RAM_BASE 0x80000000
void __init da830_init(void);
void __init da850_init(void);
@@ -82,6 +84,7 @@ 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_pruss_uio(struct uio_pruss_pdata *config);
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);
--
1.7.9.5
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