ENGR00315894-48 iMX6SX: Add iMX6SX SoC support

Adding clks, pinmux, memory map, etc for iMX6SoloX.

Signed-off-by: Fugang Duan  <B38611@freescale.com>
Signed-off-by: Huang Shijie <b32955@freescale.com>
Signed-off-by: Jason Liu <r64343@freescale.com>
Signed-off-by: Frank Li <Frank.Li@freescale.com>
Signed-off-by: Nitin Garg <nitin.garg@freescale.com>
Signed-off-by: Ye.Li <B37916@freescale.com>

2 files changed, 47 insertions, 2 deletions

diff --git a/arch/arm/cpu/armv7/mx6/clock.c b/arch/arm/cpu/armv7/mx6/clock.c
index 625518a..da8ba76 100644
--- a/arch/arm/cpu/armv7/mx6/clock.c
+++ b/arch/arm/cpu/armv7/mx6/clock.c
@@ -214,7 +214,7 @@ static u32 get_uart_clk(void)
 	u32 reg, uart_podf;
 	u32 freq = decode_pll(PLL_USBOTG, MXC_HCLK) / 6; /* static divider */
 	reg = __raw_readl(&imx_ccm->cscdr1);
-#ifdef CONFIG_MX6SL
+#if (defined(CONFIG_MX6SL) || defined(CONFIG_MX6SX))
 	if (reg & MXC_CCM_CSCDR1_UART_CLK_SEL)
 		freq = MXC_HCLK;
 #endif
@@ -282,7 +282,7 @@ static u32 get_emi_slow_clk(void)
 	return root_freq / (emi_slow_podf + 1);
 }
 
-#ifdef CONFIG_MX6SL
+#if (defined(CONFIG_MX6SL) || defined(CONFIG_MX6SX))
 static u32 get_mmdc_ch0_clk(void)
 {
 	u32 cbcmr = __raw_readl(&imx_ccm->cbcmr);
@@ -437,6 +437,7 @@ static int enable_enet_pll(uint32_t en)
 	return 0;
 }
 
+#ifndef CONFIG_MX6SX
 static void ungate_sata_clock(void)
 {
 	struct mxc_ccm_reg *const imx_ccm =
@@ -445,6 +446,7 @@ static void ungate_sata_clock(void)
 	/* Enable SATA clock. */
 	setbits_le32(&imx_ccm->CCGR5, MXC_CCM_CCGR5_SATA_MASK);
 }
+#endif
 
 static void ungate_pcie_clock(void)
 {
@@ -455,11 +457,13 @@ static void ungate_pcie_clock(void)
 	setbits_le32(&imx_ccm->CCGR4, MXC_CCM_CCGR4_PCIE_MASK);
 }
 
+#ifndef CONFIG_MX6SX
 int enable_sata_clock(void)
 {
 	ungate_sata_clock();
 	return enable_enet_pll(BM_ANADIG_PLL_ENET_ENABLE_SATA);
 }
+#endif
 
 int enable_pcie_clock(void)
 {
@@ -491,7 +495,9 @@ int enable_pcie_clock(void)
 	clrbits_le32(&ccm_regs->cbcmr, MXC_CCM_CBCMR_PCIE_AXI_CLK_SEL);
 
 	/* Party time! Ungate the clock to the PCIe. */
+#ifndef CONFIG_MX6SX
 	ungate_sata_clock();
+#endif
 	ungate_pcie_clock();
 
 	return enable_enet_pll(BM_ANADIG_PLL_ENET_ENABLE_SATA |
@@ -611,6 +617,7 @@ int do_mx6_showclocks(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 	return 0;
 }
 
+#ifndef CONFIG_MX6SX
 void enable_ipu_clock(void)
 {
 	struct mxc_ccm_reg *mxc_ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
@@ -619,6 +626,7 @@ void enable_ipu_clock(void)
 	reg |= MXC_CCM_CCGR3_IPU1_IPU_MASK;
 	writel(reg, &mxc_ccm->CCGR3);
 }
+#endif
 /***************************************************/
 
 U_BOOT_CMD(
diff --git a/arch/arm/cpu/armv7/mx6/soc.c b/arch/arm/cpu/armv7/mx6/soc.c
index adc123f..88cb2bb 100644
--- a/arch/arm/cpu/armv7/mx6/soc.c
+++ b/arch/arm/cpu/armv7/mx6/soc.c
@@ -101,9 +101,15 @@ u32 __weak get_board_rev(void)
 void init_aips(void)
 {
 	struct aipstz_regs *aips1, *aips2;
+#ifdef CONFIG_MX6SX
+	struct aipstz_regs *aips3;
+#endif
 
 	aips1 = (struct aipstz_regs *)AIPS1_BASE_ADDR;
 	aips2 = (struct aipstz_regs *)AIPS2_BASE_ADDR;
+#ifdef CONFIG_MX6SX
+	aips3 = (struct aipstz_regs *)AIPS3_CONFIG_BASE_ADDR;
+#endif
 
 	/*
 	 * Set all MPROTx to be non-bufferable, trusted for R/W,
@@ -129,6 +135,26 @@ void init_aips(void)
 	writel(0x00000000, &aips2->opacr2);
 	writel(0x00000000, &aips2->opacr3);
 	writel(0x00000000, &aips2->opacr4);
+
+#ifdef CONFIG_MX6SX
+	/*
+	 * Set all MPROTx to be non-bufferable, trusted for R/W,
+	 * not forced to user-mode.
+	 */
+	writel(0x77777777, &aips3->mprot0);
+	writel(0x77777777, &aips3->mprot1);
+
+	/*
+	 * Set all OPACRx to be non-bufferable, not require
+	 * supervisor privilege level for access,allow for
+	 * write access and untrusted master access.
+	 */
+	writel(0x00000000, &aips3->opacr0);
+	writel(0x00000000, &aips3->opacr1);
+	writel(0x00000000, &aips3->opacr2);
+	writel(0x00000000, &aips3->opacr3);
+	writel(0x00000000, &aips3->opacr4);
+#endif
 }
 
 static void clear_ldo_ramp(void)
@@ -375,9 +401,15 @@ static void imx_set_pcie_phy_power_down(void)
 {
 	u32 val;
 
+#ifndef CONFIG_MX6SX
 	val = readl(IOMUXC_BASE_ADDR + 0x4);
 	val |= 0x1 << 18;
 	writel(val, IOMUXC_BASE_ADDR + 0x4);
+#else
+	val = readl(IOMUXC_GPR_BASE_ADDR + 0x30);
+	val |= 0x1 << 30;
+	writel(val, IOMUXC_GPR_BASE_ADDR + 0x30);
+#endif
 }
 
 int arch_cpu_init(void)
@@ -543,9 +575,14 @@ void s_init(void)
 {
 	struct anatop_regs *anatop = (struct anatop_regs *)ANATOP_BASE_ADDR;
 	int is_6q = is_cpu_type(MXC_CPU_MX6Q);
+	int is_6sx = is_cpu_type(MXC_CPU_MX6SX);
 	u32 mask480;
 	u32 mask528;
 
+	/* Don't reset PFD for MX6SX */
+	if (is_6sx)
+		return;
+
 	/* Due to hardware limitation, on MX6Q we need to gate/ungate all PFDs
 	 * to make sure PFD is working right, otherwise, PFDs may
 	 * not output clock after reset, MX6DL and MX6SL have added 396M pfd