ARM: imx: Add core definitions for MX53

Add iomux, clocks,  and memory map for Freescale's MX53 SoC.
Add cpu_is_mx53 function to common.h.
Add 3 more banks of gpio's to mxc_gpio_ports.
Add MX53 phys offset address.

Signed-off-by: Dinh Nguyen <Dinh.Nguyen@freescale.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

arch/arm/mach-mx5/Makefile

@@ -3,7 +3,7 @@
 #
 
 # Object file lists.
-obj-y   := cpu.o mm.o clock-mx51.o devices.o
+obj-y   := cpu.o mm.o clock-mx51-mx53.o devices.o
 
 obj-$(CONFIG_CPU_FREQ_IMX)    += cpu_op-mx51.o
 obj-$(CONFIG_MACH_MX51_BABBAGE) += board-mx51_babbage.o

arch/arm/mach-mx5/clock-mx51.c → arch/arm/mach-mx5/clock-mx51-mx53.c

@@ -33,6 +33,7 @@ static struct clk pll1_main_clk;
 static struct clk pll1_sw_clk;
 static struct clk pll2_sw_clk;
 static struct clk pll3_sw_clk;
+static struct clk mx53_pll4_sw_clk;
 static struct clk lp_apm_clk;
 static struct clk periph_apm_clk;
 static struct clk ahb_clk;
@@ -131,6 +132,8 @@ static inline void __iomem *_get_pll_base(struct clk *pll)
 		return MX51_DPLL2_BASE;
 	else if (pll == &pll3_sw_clk)
 		return MX51_DPLL3_BASE;
+	else if (pll == &mx53_pll4_sw_clk)
+		return MX53_DPLL4_BASE;
 	else
 		BUG();
 
@@ -514,7 +517,10 @@ static int _clk_max_enable(struct clk *clk)
 
 	/* Handshake with MAX when LPM is entered. */
 	reg = __raw_readl(MXC_CCM_CLPCR);
-	reg &= ~MXC_CCM_CLPCR_BYPASS_MAX_LPM_HS;
+	if (cpu_is_mx51())
+		reg &= ~MX51_CCM_CLPCR_BYPASS_MAX_LPM_HS;
+	else if (cpu_is_mx53())
+		reg &= ~MX53_CCM_CLPCR_BYPASS_MAX_LPM_HS;
 	__raw_writel(reg, MXC_CCM_CLPCR);
 
 	return 0;
@@ -528,7 +534,10 @@ static void _clk_max_disable(struct clk *clk)
 
 	/* No Handshake with MAX when LPM is entered as its disabled. */
 	reg = __raw_readl(MXC_CCM_CLPCR);
-	reg |= MXC_CCM_CLPCR_BYPASS_MAX_LPM_HS;
+	if (cpu_is_mx51())
+		reg |= MX51_CCM_CLPCR_BYPASS_MAX_LPM_HS;
+	else if (cpu_is_mx53())
+		reg &= ~MX53_CCM_CLPCR_BYPASS_MAX_LPM_HS;
 	__raw_writel(reg, MXC_CCM_CLPCR);
 }
 
@@ -739,6 +748,14 @@ static struct clk pll3_sw_clk = {
 	.disable = _clk_pll_disable,
 };
 
+/* PLL4 SW supplies to LVDS Display Bridge(LDB) */
+static struct clk mx53_pll4_sw_clk = {
+	.parent = &osc_clk,
+	.set_rate = _clk_pll_set_rate,
+	.enable = _clk_pll_enable,
+	.disable = _clk_pll_disable,
+};
+
 /* Low-power Audio Playback Mode clock */
 static struct clk lp_apm_clk = {
 	.parent = &osc_clk,
@@ -1053,7 +1070,7 @@ DEFINE_CLOCK_MAX(esdhc2_clk, 1, MXC_CCM_CCGR3, MXC_CCM_CCGRx_CG3_OFFSET,
 		.clk = &c,   \
        },
 
-static struct clk_lookup lookups[] = {
+static struct clk_lookup mx51_lookups[] = {
 	_REGISTER_CLOCK("imx-uart.0", NULL, uart1_clk)
 	_REGISTER_CLOCK("imx-uart.1", NULL, uart2_clk)
 	_REGISTER_CLOCK("imx-uart.2", NULL, uart3_clk)
@@ -1084,6 +1101,14 @@ static struct clk_lookup lookups[] = {
 	_REGISTER_CLOCK(NULL, "cpu_clk", cpu_clk)
 };
 
+static struct clk_lookup mx53_lookups[] = {
+	_REGISTER_CLOCK("imx-uart.0", NULL, uart1_clk)
+	_REGISTER_CLOCK("imx-uart.1", NULL, uart2_clk)
+	_REGISTER_CLOCK("imx-uart.2", NULL, uart3_clk)
+	_REGISTER_CLOCK(NULL, "gpt", gpt_clk)
+	_REGISTER_CLOCK("fec.0", NULL, fec_clk)
+};
+
 static void clk_tree_init(void)
 {
 	u32 reg;
@@ -1114,8 +1139,8 @@ int __init mx51_clocks_init(unsigned long ckil, unsigned long osc,
 	ckih2_reference = ckih2;
 	oscillator_reference = osc;
 
-	for (i = 0; i < ARRAY_SIZE(lookups); i++)
-		clkdev_add(&lookups[i]);
+	for (i = 0; i < ARRAY_SIZE(mx51_lookups); i++)
+		clkdev_add(&mx51_lookups[i]);
 
 	clk_tree_init();
 
@@ -1138,3 +1163,27 @@ int __init mx51_clocks_init(unsigned long ckil, unsigned long osc,
 		MX51_MXC_INT_GPT);
 	return 0;
 }
+
+int __init mx53_clocks_init(unsigned long ckil, unsigned long osc,
+			unsigned long ckih1, unsigned long ckih2)
+{
+	int i;
+
+	external_low_reference = ckil;
+	external_high_reference = ckih1;
+	ckih2_reference = ckih2;
+	oscillator_reference = osc;
+
+	for (i = 0; i < ARRAY_SIZE(mx53_lookups); i++)
+		clkdev_add(&mx53_lookups[i]);
+
+	clk_tree_init();
+
+	clk_enable(&cpu_clk);
+	clk_enable(&main_bus_clk);
+
+	/* System timer */
+	mxc_timer_init(&gpt_clk, MX53_IO_ADDRESS(MX53_GPT1_BASE_ADDR),
+		MX53_INT_GPT);
+	return 0;
+}

arch/arm/mach-mx5/cpu.c

@@ -97,24 +97,31 @@ static int __init post_cpu_init(void)
 	unsigned int reg;
 	void __iomem *base;
 
-	if (!cpu_is_mx51())
-		return 0;
-
-	base = MX51_IO_ADDRESS(MX51_AIPS1_BASE_ADDR);
-	__raw_writel(0x0, base + 0x40);
-	__raw_writel(0x0, base + 0x44);
-	__raw_writel(0x0, base + 0x48);
-	__raw_writel(0x0, base + 0x4C);
-	reg = __raw_readl(base + 0x50) & 0x00FFFFFF;
-	__raw_writel(reg, base + 0x50);
-
-	base = MX51_IO_ADDRESS(MX51_AIPS2_BASE_ADDR);
-	__raw_writel(0x0, base + 0x40);
-	__raw_writel(0x0, base + 0x44);
-	__raw_writel(0x0, base + 0x48);
-	__raw_writel(0x0, base + 0x4C);
-	reg = __raw_readl(base + 0x50) & 0x00FFFFFF;
-	__raw_writel(reg, base + 0x50);
+	if (cpu_is_mx51() || cpu_is_mx53()) {
+		if (cpu_is_mx51())
+			base = MX51_IO_ADDRESS(MX51_AIPS1_BASE_ADDR);
+		else
+			base = MX53_IO_ADDRESS(MX53_AIPS1_BASE_ADDR);
+
+		__raw_writel(0x0, base + 0x40);
+		__raw_writel(0x0, base + 0x44);
+		__raw_writel(0x0, base + 0x48);
+		__raw_writel(0x0, base + 0x4C);
+		reg = __raw_readl(base + 0x50) & 0x00FFFFFF;
+		__raw_writel(reg, base + 0x50);
+
+		if (cpu_is_mx51())
+			base = MX51_IO_ADDRESS(MX51_AIPS2_BASE_ADDR);
+		else
+			base = MX53_IO_ADDRESS(MX53_AIPS2_BASE_ADDR);
+
+		__raw_writel(0x0, base + 0x40);
+		__raw_writel(0x0, base + 0x44);
+		__raw_writel(0x0, base + 0x48);
+		__raw_writel(0x0, base + 0x4C);
+		reg = __raw_readl(base + 0x50) & 0x00FFFFFF;
+		__raw_writel(reg, base + 0x50);
+	}
 
 	return 0;
 }

arch/arm/mach-mx5/crm_regs.h

@@ -18,6 +18,9 @@
 #define MX51_CORTEXA8_BASE	MX51_IO_ADDRESS(MX51_ARM_BASE_ADDR)
 #define MX51_GPC_BASE		MX51_IO_ADDRESS(MX51_GPC_BASE_ADDR)
 
+/*MX53*/
+#define MX53_DPLL4_BASE		MX53_IO_ADDRESS(MX53_PLL3_BASE_ADDR)
+
 /* PLL Register Offsets */
 #define MXC_PLL_DP_CTL			0x00
 #define MXC_PLL_DP_CONFIG		0x04
@@ -380,7 +383,8 @@
 /* Define the bits in register CLPCR */
 #define MXC_CCM_CLPCR_BYPASS_HSC_LPM_HS		(0x1 << 23)
 #define MXC_CCM_CLPCR_BYPASS_SCC_LPM_HS		(0x1 << 22)
-#define MXC_CCM_CLPCR_BYPASS_MAX_LPM_HS		(0x1 << 21)
+#define MX51_CCM_CLPCR_BYPASS_MAX_LPM_HS		(0x1 << 21)
+#define MX53_CCM_CLPCR_BYPASS_MAX_LPM_HS		(0x1 << 25)
 #define MXC_CCM_CLPCR_BYPASS_SDMA_LPM_HS	(0x1 << 20)
 #define MXC_CCM_CLPCR_BYPASS_EMI_LPM_HS		(0x1 << 19)
 #define MXC_CCM_CLPCR_BYPASS_IPU_LPM_HS		(0x1 << 18)

arch/arm/mach-mx5/devices.c

@@ -160,9 +160,36 @@ static struct mxc_gpio_port mxc_gpio_ports[] = {
 		.irq_high = MX51_MXC_INT_GPIO4_HIGH,
 		.virtual_irq_start = MXC_GPIO_IRQ_START + 32 * 3
 	},
+	{
+		.chip.label = "gpio-4",
+		.base = MX53_IO_ADDRESS(MX53_GPIO5_BASE_ADDR),
+		.irq = MX53_INT_GPIO5_LOW,
+		.irq_high = MX53_INT_GPIO5_HIGH,
+		.virtual_irq_start = MXC_GPIO_IRQ_START + 32 * 4
+	},
+	{
+		.chip.label = "gpio-5",
+		.base = MX53_IO_ADDRESS(MX53_GPIO6_BASE_ADDR),
+		.irq = MX53_INT_GPIO6_LOW,
+		.irq_high = MX53_INT_GPIO6_HIGH,
+		.virtual_irq_start = MXC_GPIO_IRQ_START + 32 * 5
+	},
+	{
+		.chip.label = "gpio-6",
+		.base = MX53_IO_ADDRESS(MX53_GPIO7_BASE_ADDR),
+		.irq = MX53_INT_GPIO7_LOW,
+		.irq_high = MX53_INT_GPIO7_HIGH,
+		.virtual_irq_start = MXC_GPIO_IRQ_START + 32 * 6
+	},
 };
 
 int __init imx51_register_gpios(void)
+{
+	return mxc_gpio_init(mxc_gpio_ports, 4);
+}
+
+int __init imx53_register_gpios(void)
 {
 	return mxc_gpio_init(mxc_gpio_ports, ARRAY_SIZE(mxc_gpio_ports));
 }
+

arch/arm/mach-mx5/mm.c

@@ -63,3 +63,20 @@ void __init mx51_init_irq(void)
 	tzic_init_irq(tzic_virt);
 	imx51_register_gpios();
 }
+
+int imx53_register_gpios(void);
+
+void __init mx53_init_irq(void)
+{
+	unsigned long tzic_addr;
+	void __iomem *tzic_virt;
+
+	tzic_addr = MX53_TZIC_BASE_ADDR;
+
+	tzic_virt = ioremap(tzic_addr, SZ_16K);
+	if (!tzic_virt)
+		panic("unable to map TZIC interrupt controller\n");
+
+	tzic_init_irq(tzic_virt);
+	imx53_register_gpios();
+}

arch/arm/plat-mxc/include/mach/common.h

@@ -21,6 +21,7 @@ extern void mx27_map_io(void);
 extern void mx31_map_io(void);
 extern void mx35_map_io(void);
 extern void mx51_map_io(void);
+extern void mx53_map_io(void);
 extern void mxc91231_map_io(void);
 extern void mxc_init_irq(void __iomem *);
 extern void tzic_init_irq(void __iomem *);
@@ -31,6 +32,7 @@ extern void mx27_init_irq(void);
 extern void mx31_init_irq(void);
 extern void mx35_init_irq(void);
 extern void mx51_init_irq(void);
+extern void mx53_init_irq(void);
 extern void mxc91231_init_irq(void);
 extern void epit_timer_init(struct clk *timer_clk, void __iomem *base, int irq);
 extern void mxc_timer_init(struct clk *timer_clk, void __iomem *, int);
@@ -42,6 +44,8 @@ extern int mx31_clocks_init(unsigned long fref);
 extern int mx35_clocks_init(void);
 extern int mx51_clocks_init(unsigned long ckil, unsigned long osc,
 			unsigned long ckih1, unsigned long ckih2);
+extern int mx53_clocks_init(unsigned long ckil, unsigned long osc,
+			unsigned long ckih1, unsigned long ckih2);
 extern int mxc91231_clocks_init(unsigned long fref);
 extern int mxc_register_gpios(void);
 extern int mxc_register_device(struct platform_device *pdev, void *data);
@@ -51,4 +55,5 @@ extern void mxc91231_power_off(void);
 extern void mxc91231_arch_reset(int, const char *);
 extern void mxc91231_prepare_idle(void);
 extern void mx51_efikamx_reset(void);
+extern int mx53_revision(void);
 #endif

arch/arm/plat-mxc/include/mach/hardware.h

@@ -101,6 +101,7 @@
 
 #ifdef CONFIG_ARCH_MX5
 #include <mach/mx51.h>
+#include <mach/mx53.h>
 #endif
 
 #ifdef CONFIG_ARCH_MX3