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From: Andrey Smirnov <andrew.smirnov@gmail.com>
To: barebox@lists.infradead.org
Cc: Andrey Smirnov <andrew.smirnov@gmail.com>
Subject: [PATCH 6/9] ARM: i.MX: Add minimal imx7-ccm-regs.h
Date: Mon, 24 Jul 2017 07:53:57 -0700	[thread overview]
Message-ID: <20170724145400.2279-7-andrew.smirnov@gmail.com> (raw)
In-Reply-To: <20170724145400.2279-1-andrew.smirnov@gmail.com>

Add minimal imx7-ccm-regs.h that contains bare minimum definitions
needed for early UART setup.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
---
 arch/arm/mach-imx/include/mach/imx7-ccm-regs.h | 32 ++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)
 create mode 100644 arch/arm/mach-imx/include/mach/imx7-ccm-regs.h

diff --git a/arch/arm/mach-imx/include/mach/imx7-ccm-regs.h b/arch/arm/mach-imx/include/mach/imx7-ccm-regs.h
new file mode 100644
index 000000000..a4217cca5
--- /dev/null
+++ b/arch/arm/mach-imx/include/mach/imx7-ccm-regs.h
@@ -0,0 +1,32 @@
+#ifndef __MACH_IMX7_CCM_REGS_H__
+#define __MACH_IMX7_CCM_REGS_H__
+
+/* 0 <= n <= 190 */
+#define CCM_CCGRn_SET(n)	(0x4004 + 16 * (n))
+#define CCM_CCGRn_CLR(n)	(0x4008 + 16 * (n))
+
+#define CCM_CCGR_UART1		148
+
+#define CCM_CCGR_SETTINGn(n, s)  ((s) << ((n) * 4))
+#define CCM_CCGR_SETTINGn_NOT_NEEDED(n)		CCM_CCGR_SETTINGn(n, 0b00)
+#define CCM_CCGR_SETTINGn_NEEDED_RUN(n)		CCM_CCGR_SETTINGn(n, 0b01)
+#define CCM_CCGR_SETTINGn_NEEDED_RUN_WAIT(n)	CCM_CCGR_SETTINGn(n, 0b10)
+#define CCM_CCGR_SETTINGn_NEEDED(n)		CCM_CCGR_SETTINGn(n, 0b11)
+
+/* 0 <= n <= 120 */
+#define CCM_TARGET_ROOTn(n)	(0x8000 + 128 * (n))
+
+#define CCM_TARGET_ROOTn_MUX(x)		((x) << 24)
+#define CCM_TARGET_ROOTn_ENABLE		BIT(28)
+
+#define CLOCK_ROOT_INDEX(x)	(((x) - 0x8000) / 128)
+
+/*
+ * Taken from "Table 5-11. Clock Root Table" from i.MX7 Dual Processor
+ * Reference Manual
+ */
+#define UART1_CLK_ROOT		CLOCK_ROOT_INDEX(0xaf80)
+#define UART1_CLK_ROOT__OSC_24M CCM_TARGET_ROOTn_MUX(0b000)
+
+
+#endif
-- 
2.13.3


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  parent reply	other threads:[~2017-07-24 14:54 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-07-24 14:53 [PATCH 0/9] i.MX7 SabreSD support Andrey Smirnov
2017-07-24 14:53 ` [PATCH 1/9] gpiolib: Fix buggy flag detection code Andrey Smirnov
2017-07-24 15:36   ` Sam Ravnborg
2017-07-24 19:30     ` Andrey Smirnov
2017-07-24 14:53 ` [PATCH 2/9] clk: i.MX7: Remove unused UART clocks array Andrey Smirnov
2017-07-24 14:53 ` [PATCH 3/9] ARM: i.MX: Import mx7d_pins.h from U-Boot Andrey Smirnov
2017-07-24 14:53 ` [PATCH 4/9] ARM: i.MX: Add mx7_setup_pad() Andrey Smirnov
2017-07-24 14:53 ` [PATCH 5/9] ARM: i.MX: Add imx7_uart_setup_ll() Andrey Smirnov
2017-07-24 14:53 ` Andrey Smirnov [this message]
2017-07-24 14:53 ` [PATCH 7/9] ARM: i.MX: Add ARCH_HAD_FEC_IMX to ARCH_IMX7 Andrey Smirnov
2017-07-24 14:53 ` [PATCH 8/9] ARM: i.MX: Import imx7-iomuxc-gpr.h from Linux kernel Andrey Smirnov
2017-07-24 14:54 ` [PATCH 9/9] ARM: i.MX: Add support for NXP i.MX7 SABRESD board Andrey Smirnov
2017-07-24 15:59   ` Sam Ravnborg
2017-07-24 19:20     ` Andrey Smirnov
2017-07-24 19:03   ` Stefan Lengfeld
2017-07-24 19:23     ` Andrey Smirnov
2017-07-24 16:01 ` [PATCH 0/9] i.MX7 SabreSD support Sam Ravnborg
2017-07-24 19:29   ` Andrey Smirnov

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