Merge tag 'davinci-for-v3.10/board-2-v2' of git://git.kernel.org/pub/…

…scm/linux/kernel/git/nsekhar/linux-davinci into next/boards

From Sekhar Nori:
v3.10 board updates for DaVinci

This set of patches enables remoteproc support
on DA850 EVM and fixes some sparse warnings for
the same board.

* tag 'davinci-for-v3.10/board-2-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci:
  ARM: davinci: da850 evm: fix const qualifier placement
  ARM: davinci: da850 board: add remoteproc support
  ARM: davinci: ensure global variables are declared
  ARM: davinci: sram.c: fix incorrect type in assignment
  ARM: davinci: da8xx dt: make file local symbols static
  ARM: davinci: da8xx: add remoteproc support
  ARM: davinci: remove test for undefined Kconfig macro
  ARM: davinci: mmc: derive version information from device name
  ARM: davinci: da850: add ECAP & EHRPWM clock nodes
  ARM: davinci: clk framework support for enable/disable functionality

Documentation/kernel-parameters.txt

@@ -44,6 +44,7 @@ parameter is applicable:
 	AVR32	AVR32 architecture is enabled.
 	AX25	Appropriate AX.25 support is enabled.
 	BLACKFIN Blackfin architecture is enabled.
+	CMA	Contiguous Memory Area support is enabled.
 	DRM	Direct Rendering Management support is enabled.
 	DYNAMIC_DEBUG Build in debug messages and enable them at runtime
 	EDD	BIOS Enhanced Disk Drive Services (EDD) is enabled
@@ -2663,6 +2664,11 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
 			Useful for devices that are detected asynchronously
 			(e.g. USB and MMC devices).
 
+	rproc_mem=nn[KMG][@address]
+			[KNL,ARM,CMA] Remoteproc physical memory block.
+			Memory area to be used by remote processor image,
+			managed by CMA.
+
 	rw		[KNL] Mount root device read-write on boot
 
 	S		[KNL] Run init in single mode

arch/arm/mach-davinci/board-da830-evm.c

@@ -246,7 +246,6 @@ static struct davinci_mmc_config da830_evm_mmc_config = {
 	.wires			= 8,
 	.max_freq		= 50000000,
 	.caps			= MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED,
-	.version		= MMC_CTLR_VERSION_2,
 };
 
 static inline void da830_evm_init_mmc(void)

arch/arm/mach-davinci/board-da850-evm.c

@@ -396,7 +396,7 @@ enum da850_evm_ui_exp_pins {
 	DA850_EVM_UI_EXP_PB1,
 };
 
-static const char const *da850_evm_ui_exp[] = {
+static const char * const da850_evm_ui_exp[] = {
 	[DA850_EVM_UI_EXP_SEL_C]        = "sel_c",
 	[DA850_EVM_UI_EXP_SEL_B]        = "sel_b",
 	[DA850_EVM_UI_EXP_SEL_A]        = "sel_a",
@@ -560,7 +560,7 @@ enum da850_evm_bb_exp_pins {
 	DA850_EVM_BB_EXP_USER_SW8
 };
 
-static const char const *da850_evm_bb_exp[] = {
+static const char * const da850_evm_bb_exp[] = {
 	[DA850_EVM_BB_EXP_DEEP_SLEEP_EN]	= "deep_sleep_en",
 	[DA850_EVM_BB_EXP_SW_RST]		= "sw_rst",
 	[DA850_EVM_BB_EXP_TP_23]		= "tp_23",
@@ -797,7 +797,6 @@ static struct davinci_mmc_config da850_mmc_config = {
 	.wires		= 4,
 	.max_freq	= 50000000,
 	.caps		= MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED,
-	.version	= MMC_CTLR_VERSION_2,
 };
 
 static const short da850_evm_mmcsd0_pins[] __initconst = {
@@ -1367,7 +1366,6 @@ static struct davinci_mmc_config da850_wl12xx_mmc_config = {
 	.max_freq	= 25000000,
 	.caps		= MMC_CAP_4_BIT_DATA | MMC_CAP_NONREMOVABLE |
 			  MMC_CAP_POWER_OFF_CARD,
-	.version	= MMC_CTLR_VERSION_2,
 };
 
 static const short da850_wl12xx_pins[] __initconst = {
@@ -1574,6 +1572,11 @@ static __init void da850_evm_init(void)
 		pr_warn("%s: SATA registration failed: %d\n", __func__, ret);
 
 	da850_evm_setup_mac_addr();
+
+	ret = da8xx_register_rproc();
+	if (ret)
+		pr_warn("%s: dsp/rproc registration failed: %d\n",
+			__func__, ret);
 }
 
 #ifdef CONFIG_SERIAL_8250_CONSOLE
@@ -1601,4 +1604,5 @@ MACHINE_START(DAVINCI_DA850_EVM, "DaVinci DA850/OMAP-L138/AM18x EVM")
 	.init_late	= davinci_init_late,
 	.dma_zone_size	= SZ_128M,
 	.restart	= da8xx_restart,
+	.reserve	= da8xx_rproc_reserve_cma,
 MACHINE_END

arch/arm/mach-davinci/board-dm355-evm.c

@@ -280,7 +280,6 @@ static struct davinci_mmc_config dm355evm_mmc_config = {
 	.wires		= 4,
 	.max_freq       = 50000000,
 	.caps           = MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED,
-	.version	= MMC_CTLR_VERSION_1,
 };
 
 /* Don't connect anything to J10 unless you're only using USB host

arch/arm/mach-davinci/board-dm365-evm.c

@@ -253,7 +253,6 @@ static struct davinci_mmc_config dm365evm_mmc_config = {
 	.wires		= 4,
 	.max_freq	= 50000000,
 	.caps		= MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED,
-	.version	= MMC_CTLR_VERSION_2,
 };
 
 static void dm365evm_emac_configure(void)

arch/arm/mach-davinci/board-dm644x-evm.c

@@ -570,7 +570,6 @@ static struct davinci_mmc_config dm6446evm_mmc_config = {
 	.get_cd		= dm6444evm_mmc_get_cd,
 	.get_ro		= dm6444evm_mmc_get_ro,
 	.wires		= 4,
-	.version	= MMC_CTLR_VERSION_1
 };
 
 static struct i2c_board_info __initdata i2c_info[] =  {

arch/arm/mach-davinci/board-neuros-osd2.c

@@ -164,7 +164,6 @@ static void __init davinci_ntosd2_map_io(void)
 
 static struct davinci_mmc_config davinci_ntosd2_mmc_config = {
 	.wires		= 4,
-	.version	= MMC_CTLR_VERSION_1
 };
 
 #define HAS_ATA		IS_ENABLED(CONFIG_BLK_DEV_PALMCHIP_BK3710)

arch/arm/mach-davinci/board-omapl138-hawk.c

@@ -136,7 +136,6 @@ static struct davinci_mmc_config da850_mmc_config = {
 	.wires		= 4,
 	.max_freq	= 50000000,
 	.caps		= MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED,
-	.version	= MMC_CTLR_VERSION_2,
 };
 
 static __init void omapl138_hawk_mmc_init(void)
@@ -311,6 +310,11 @@ static __init void omapl138_hawk_init(void)
 	if (ret)
 		pr_warn("%s: watchdog registration failed: %d\n",
 			__func__, ret);
+
+	ret = da8xx_register_rproc();
+	if (ret)
+		pr_warn("%s: dsp/rproc registration failed: %d\n",
+			__func__, ret);
 }
 
 #ifdef CONFIG_SERIAL_8250_CONSOLE
@@ -338,4 +342,5 @@ MACHINE_START(OMAPL138_HAWKBOARD, "AM18x/OMAP-L138 Hawkboard")
 	.init_late	= davinci_init_late,
 	.dma_zone_size	= SZ_128M,
 	.restart	= da8xx_restart,
+	.reserve	= da8xx_rproc_reserve_cma,
 MACHINE_END

arch/arm/mach-davinci/board-tnetv107x-evm.c

@@ -85,7 +85,6 @@ static struct davinci_mmc_config mmc_config = {
 	.wires		= 4,
 	.max_freq	= 50000000,
 	.caps		= MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED,
-	.version	= MMC_CTLR_VERSION_1,
 };
 
 static const short sdio1_pins[] __initconst = {

arch/arm/mach-davinci/clock.c

@@ -35,19 +35,26 @@ static void __clk_enable(struct clk *clk)
 {
 	if (clk->parent)
 		__clk_enable(clk->parent);
-	if (clk->usecount++ == 0 && (clk->flags & CLK_PSC))
-		davinci_psc_config(clk->domain, clk->gpsc, clk->lpsc,
-				true, clk->flags);
+	if (clk->usecount++ == 0) {
+		if (clk->flags & CLK_PSC)
+			davinci_psc_config(clk->domain, clk->gpsc, clk->lpsc,
+					   true, clk->flags);
+		else if (clk->clk_enable)
+			clk->clk_enable(clk);
+	}
 }
 
 static void __clk_disable(struct clk *clk)
 {
 	if (WARN_ON(clk->usecount == 0))
 		return;
-	if (--clk->usecount == 0 && !(clk->flags & CLK_PLL) &&
-	    (clk->flags & CLK_PSC))
-		davinci_psc_config(clk->domain, clk->gpsc, clk->lpsc,
-				false, clk->flags);
+	if (--clk->usecount == 0) {
+		if (!(clk->flags & CLK_PLL) && (clk->flags & CLK_PSC))
+			davinci_psc_config(clk->domain, clk->gpsc, clk->lpsc,
+					   false, clk->flags);
+		else if (clk->clk_disable)
+			clk->clk_disable(clk);
+	}
 	if (clk->parent)
 		__clk_disable(clk->parent);
 }

arch/arm/mach-davinci/clock.h

@@ -104,6 +104,8 @@ struct clk {
 	int (*set_rate) (struct clk *clk, unsigned long rate);
 	int (*round_rate) (struct clk *clk, unsigned long rate);
 	int (*reset) (struct clk *clk, bool reset);
+	void (*clk_enable) (struct clk *clk);
+	void (*clk_disable) (struct clk *clk);
 };
 
 /* Clock flags: SoC-specific flags start at BIT(16) */

arch/arm/mach-davinci/da830.c

@@ -394,7 +394,7 @@ static struct clk_lookup da830_clks[] = {
 	CLK(NULL,		"tpcc",		&tpcc_clk),
 	CLK(NULL,		"tptc0",	&tptc0_clk),
 	CLK(NULL,		"tptc1",	&tptc1_clk),
-	CLK("davinci_mmc.0",	NULL,		&mmcsd_clk),
+	CLK("da830-mmc.0",	NULL,		&mmcsd_clk),
 	CLK(NULL,		"uart0",	&uart0_clk),
 	CLK(NULL,		"uart1",	&uart1_clk),
 	CLK(NULL,		"uart2",	&uart2_clk),

arch/arm/mach-davinci/da850.c

@@ -383,6 +383,49 @@ static struct clk dsp_clk = {
 	.flags		= PSC_LRST | PSC_FORCE,
 };
 
+static struct clk ehrpwm_clk = {
+	.name		= "ehrpwm",
+	.parent		= &pll0_sysclk2,
+	.lpsc		= DA8XX_LPSC1_PWM,
+	.gpsc		= 1,
+	.flags		= DA850_CLK_ASYNC3,
+};
+
+#define DA8XX_EHRPWM_TBCLKSYNC	BIT(12)
+
+static void ehrpwm_tblck_enable(struct clk *clk)
+{
+	u32 val;
+
+	val = readl(DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP1_REG));
+	val |= DA8XX_EHRPWM_TBCLKSYNC;
+	writel(val, DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP1_REG));
+}
+
+static void ehrpwm_tblck_disable(struct clk *clk)
+{
+	u32 val;
+
+	val = readl(DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP1_REG));
+	val &= ~DA8XX_EHRPWM_TBCLKSYNC;
+	writel(val, DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP1_REG));
+}
+
+static struct clk ehrpwm_tbclk = {
+	.name		= "ehrpwm_tbclk",
+	.parent		= &ehrpwm_clk,
+	.clk_enable	= ehrpwm_tblck_enable,
+	.clk_disable	= ehrpwm_tblck_disable,
+};
+
+static struct clk ecap_clk = {
+	.name		= "ecap",
+	.parent		= &pll0_sysclk2,
+	.lpsc		= DA8XX_LPSC1_ECAP,
+	.gpsc		= 1,
+	.flags		= DA850_CLK_ASYNC3,
+};
+
 static struct clk_lookup da850_clks[] = {
 	CLK(NULL,		"ref",		&ref_clk),
 	CLK(NULL,		"pll0",		&pll0_clk),
@@ -420,8 +463,8 @@ static struct clk_lookup da850_clks[] = {
 	CLK("davinci_emac.1",	NULL,		&emac_clk),
 	CLK("davinci-mcasp.0",	NULL,		&mcasp_clk),
 	CLK("da8xx_lcdc.0",	"fck",		&lcdc_clk),
-	CLK("davinci_mmc.0",	NULL,		&mmcsd0_clk),
-	CLK("davinci_mmc.1",	NULL,		&mmcsd1_clk),
+	CLK("da830-mmc.0",	NULL,		&mmcsd0_clk),
+	CLK("da830-mmc.1",	NULL,		&mmcsd1_clk),
 	CLK(NULL,		"aemif",	&aemif_clk),
 	CLK(NULL,		"usb11",	&usb11_clk),
 	CLK(NULL,		"usb20",	&usb20_clk),
@@ -430,6 +473,9 @@ static struct clk_lookup da850_clks[] = {
 	CLK("vpif",		NULL,		&vpif_clk),
 	CLK("ahci",		NULL,		&sata_clk),
 	CLK("davinci-rproc.0",	NULL,		&dsp_clk),
+	CLK("ehrpwm",		"fck",		&ehrpwm_clk),
+	CLK("ehrpwm",		"tbclk",	&ehrpwm_tbclk),
+	CLK("ecap",		"fck",		&ecap_clk),
 	CLK(NULL,		NULL,		NULL),
 };
 

arch/arm/mach-davinci/da8xx-dt.c

@@ -20,7 +20,7 @@
 
 #define DA8XX_NUM_UARTS	3
 
-void __init da8xx_uart_clk_enable(void)
+static void __init da8xx_uart_clk_enable(void)
 {
 	int i;
 	for (i = 0; i < DA8XX_NUM_UARTS; i++)
@@ -37,7 +37,7 @@ static void __init da8xx_init_irq(void)
 	of_irq_init(da8xx_irq_match);
 }
 
-struct of_dev_auxdata da850_auxdata_lookup[] __initdata = {
+static struct of_dev_auxdata da850_auxdata_lookup[] __initdata = {
 	OF_DEV_AUXDATA("ti,davinci-i2c", 0x01c22000, "i2c_davinci.1", NULL),
 	OF_DEV_AUXDATA("ti,davinci-wdt", 0x01c21000, "watchdog", NULL),
 	{}