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Message-Id: <1308640714-17961-7-git-send-email-ohad@wizery.com>
Date: Tue, 21 Jun 2011 10:18:32 +0300
From: Ohad Ben-Cohen <ohad@...ery.com>
To: <linux-omap@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>
Cc: <akpm@...ux-foundation.org>, Brian Swetland <swetland@...gle.com>,
Arnd Bergmann <arnd@...db.de>,
Grant Likely <grant.likely@...retlab.ca>,
davinci-linux-open-source
<davinci-linux-open-source@...ux.davincidsp.com>,
Rusty Russell <rusty@...tcorp.com.au>,
Mark Grosen <mgrosen@...com>, Ohad Ben-Cohen <ohad@...ery.com>
Subject: [RFC 6/8] davinci: da850: add remoteproc dsp device
From: Mark Grosen <mgrosen@...com>
Add davinci remoteproc device for the da850's C674x dsp remote
processor, and support it on the da850-evm and omapl138-hawk boards.
Signed-off-by: Mark Grosen <mgrosen@...com>
Signed-off-by: Ohad Ben-Cohen <ohad@...ery.com>
---
It'd be nice to split this patch to the different components it changes,
but it's probably not so important at this early stage.
arch/arm/mach-davinci/board-da850-evm.c | 4 ++++
arch/arm/mach-davinci/board-omapl138-hawk.c | 4 ++++
arch/arm/mach-davinci/da850.c | 14 ++++++++++++++
arch/arm/mach-davinci/devices-da8xx.c | 15 +++++++++++++++
arch/arm/mach-davinci/include/mach/da8xx.h | 1 +
5 files changed, 38 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-davinci/board-da850-evm.c b/arch/arm/mach-davinci/board-da850-evm.c
index a7b41bf..6b35f0a 100644
--- a/arch/arm/mach-davinci/board-da850-evm.c
+++ b/arch/arm/mach-davinci/board-da850-evm.c
@@ -1176,6 +1176,10 @@ static __init void da850_evm_init(void)
i2c_register_board_info(1, da850_evm_i2c_devices,
ARRAY_SIZE(da850_evm_i2c_devices));
+ ret = da850_register_rproc();
+ if (ret)
+ pr_warning("dsp/rproc registration failed: %d\n", ret);
+
/*
* shut down uart 0 and 1; they are not used on the board and
* accessing them causes endless "too much work in irq53" messages
diff --git a/arch/arm/mach-davinci/board-omapl138-hawk.c b/arch/arm/mach-davinci/board-omapl138-hawk.c
index 67c38d0..52c8434 100644
--- a/arch/arm/mach-davinci/board-omapl138-hawk.c
+++ b/arch/arm/mach-davinci/board-omapl138-hawk.c
@@ -319,6 +319,10 @@ static __init void omapl138_hawk_init(void)
pr_warning("omapl138_hawk_init: "
"watchdog registration failed: %d\n",
ret);
+
+ ret = da850_register_rproc();
+ if (ret)
+ pr_warning("dsp/rproc registration failed: %d\n", ret);
}
#ifdef CONFIG_SERIAL_8250_CONSOLE
diff --git a/arch/arm/mach-davinci/da850.c b/arch/arm/mach-davinci/da850.c
index 133aac4..9280b1e 100644
--- a/arch/arm/mach-davinci/da850.c
+++ b/arch/arm/mach-davinci/da850.c
@@ -74,6 +74,13 @@ static struct clk pll0_aux_clk = {
.flags = CLK_PLL | PRE_PLL,
};
+static struct clk pll0_sysclk1 = {
+ .name = "pll0_sysclk1",
+ .parent = &pll0_clk,
+ .flags = CLK_PLL,
+ .div_reg = PLLDIV1,
+};
+
static struct clk pll0_sysclk2 = {
.name = "pll0_sysclk2",
.parent = &pll0_clk,
@@ -373,6 +380,12 @@ static struct clk spi1_clk = {
.flags = DA850_CLK_ASYNC3,
};
+static struct clk dsp_clk = {
+ .name = "dsp",
+ .parent = &pll0_sysclk1,
+ .lpsc = DA8XX_LPSC0_GEM,
+};
+
static struct clk_lookup da850_clks[] = {
CLK(NULL, "ref", &ref_clk),
CLK(NULL, "pll0", &pll0_clk),
@@ -419,6 +432,7 @@ static struct clk_lookup da850_clks[] = {
CLK(NULL, "usb20", &usb20_clk),
CLK("spi_davinci.0", NULL, &spi0_clk),
CLK("spi_davinci.1", NULL, &spi1_clk),
+ CLK(NULL, "dsp", &dsp_clk),
CLK(NULL, NULL, NULL),
};
diff --git a/arch/arm/mach-davinci/devices-da8xx.c b/arch/arm/mach-davinci/devices-da8xx.c
index fc4e98e..3becfd1 100644
--- a/arch/arm/mach-davinci/devices-da8xx.c
+++ b/arch/arm/mach-davinci/devices-da8xx.c
@@ -20,6 +20,7 @@
#include <mach/time.h>
#include <mach/da8xx.h>
#include <mach/cpuidle.h>
+#include <mach/remoteproc.h>
#include "clock.h"
@@ -647,6 +648,20 @@ int __init da850_register_mmcsd1(struct davinci_mmc_config *config)
da850_mmcsd1_device.dev.platform_data = config;
return platform_device_register(&da850_mmcsd1_device);
}
+
+int __init da850_register_rproc(void)
+{
+ struct platform_device *rproc;
+ struct davinci_rproc_pdata rproc_pdata = {
+ .name = "dsp",
+ .firmware = "davinci-dsp.bin",
+ .clk_name = "dsp",
+ };
+
+ rproc = platform_device_register_data(NULL, "davinci-rproc", 0,
+ &rproc_pdata, sizeof(rproc_pdata));
+ return PTR_RET(rproc);
+};
#endif
static struct resource da8xx_rtc_resources[] = {
diff --git a/arch/arm/mach-davinci/include/mach/da8xx.h b/arch/arm/mach-davinci/include/mach/da8xx.h
index ad64da7..a6f024f 100644
--- a/arch/arm/mach-davinci/include/mach/da8xx.h
+++ b/arch/arm/mach-davinci/include/mach/da8xx.h
@@ -74,6 +74,7 @@ void __init da850_init(void);
int da830_register_edma(struct edma_rsv_info *rsv);
int da850_register_edma(struct edma_rsv_info *rsv[2]);
+int da850_register_rproc(void);
int da8xx_register_i2c(int instance, struct davinci_i2c_platform_data *pdata);
int da8xx_register_spi(int instance, struct spi_board_info *info, unsigned len);
int da8xx_register_watchdog(void);
--
1.7.1
--
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