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authorLinus Torvalds <torvalds@linux-foundation.org>2011-01-06 19:13:58 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2011-01-06 19:13:58 -0800
commit01539ba2a706ab7d35fc0667dff919ade7f87d63 (patch)
tree5a4bd0cf78007d06690fe4ac06bbd49a5a70bc47 /arch/arm/mach-omap2/prminst44xx.c
parent9e9bc9736756f25d6c47b4eba0ebf25b20a6f153 (diff)
parentdc69d1af9e8d9cbbabff88bb35a6782187a22229 (diff)
downloadblackbird-op-linux-01539ba2a706ab7d35fc0667dff919ade7f87d63.tar.gz
blackbird-op-linux-01539ba2a706ab7d35fc0667dff919ade7f87d63.zip
Merge branch 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6
* 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6: (243 commits) omap2: Make OMAP2PLUS select OMAP_DM_TIMER OMAP4: hwmod data: Fix alignment and end of line in structurefields OMAP4: hwmod data: Move the DMA structures OMAP4: hwmod data: Move the smartreflex structures OMAP4: hwmod data: Fix missing SIDLE_SMART_WKUP in smartreflexsysc arm: omap: tusb6010: add name for MUSB IRQ arm: omap: craneboard: Add USB EHCI support omap2+: Initialize serial port for dynamic remuxing for n8x0 omap2+: Add struct omap_board_data and use it for platform level serial init omap2+: Allow hwmod state changes to mux pads based on the state changes omap2+: Add support for hwmod specific muxing of devices omap2+: Add omap_mux_get_by_name OMAP2: PM: fix compile error when !CONFIG_SUSPEND MAINTAINERS: OMAP: hwmod: update hwmod code, data maintainership OMAP4: Smartreflex framework extensions OMAP4: hwmod: Add inital data for smartreflex modules. OMAP4: PM: Program correct init voltages for scalable VDDs OMAP4: Adding voltage driver support OMAP4: Register voltage PMIC parameters with the voltage layer OMAP3: PM: Program correct init voltages for VDD1 and VDD2 ... Fix up trivial conflict in arch/arm/plat-omap/Kconfig
Diffstat (limited to 'arch/arm/mach-omap2/prminst44xx.c')
-rw-r--r--arch/arm/mach-omap2/prminst44xx.c66
1 files changed, 66 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/prminst44xx.c b/arch/arm/mach-omap2/prminst44xx.c
new file mode 100644
index 000000000000..a30324297278
--- /dev/null
+++ b/arch/arm/mach-omap2/prminst44xx.c
@@ -0,0 +1,66 @@
+/*
+ * OMAP4 PRM instance functions
+ *
+ * Copyright (C) 2009 Nokia Corporation
+ * Paul Walmsley
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/err.h>
+#include <linux/io.h>
+
+#include <plat/common.h>
+
+#include "prm44xx.h"
+#include "prminst44xx.h"
+#include "prm-regbits-44xx.h"
+#include "prcm44xx.h"
+#include "prcm_mpu44xx.h"
+
+static u32 _prm_bases[OMAP4_MAX_PRCM_PARTITIONS] = {
+ [OMAP4430_INVALID_PRCM_PARTITION] = 0,
+ [OMAP4430_PRM_PARTITION] = OMAP4430_PRM_BASE,
+ [OMAP4430_CM1_PARTITION] = 0,
+ [OMAP4430_CM2_PARTITION] = 0,
+ [OMAP4430_SCRM_PARTITION] = 0,
+ [OMAP4430_PRCM_MPU_PARTITION] = OMAP4430_PRCM_MPU_BASE,
+};
+
+/* Read a register in a PRM instance */
+u32 omap4_prminst_read_inst_reg(u8 part, s16 inst, u16 idx)
+{
+ BUG_ON(part >= OMAP4_MAX_PRCM_PARTITIONS ||
+ part == OMAP4430_INVALID_PRCM_PARTITION ||
+ !_prm_bases[part]);
+ return __raw_readl(OMAP2_L4_IO_ADDRESS(_prm_bases[part] + inst +
+ idx));
+}
+
+/* Write into a register in a PRM instance */
+void omap4_prminst_write_inst_reg(u32 val, u8 part, s16 inst, u16 idx)
+{
+ BUG_ON(part >= OMAP4_MAX_PRCM_PARTITIONS ||
+ part == OMAP4430_INVALID_PRCM_PARTITION ||
+ !_prm_bases[part]);
+ __raw_writel(val, OMAP2_L4_IO_ADDRESS(_prm_bases[part] + inst + idx));
+}
+
+/* Read-modify-write a register in PRM. Caller must lock */
+u32 omap4_prminst_rmw_inst_reg_bits(u32 mask, u32 bits, u8 part, s16 inst,
+ s16 idx)
+{
+ u32 v;
+
+ v = omap4_prminst_read_inst_reg(part, inst, idx);
+ v &= ~mask;
+ v |= bits;
+ omap4_prminst_write_inst_reg(v, part, inst, idx);
+
+ return v;
+}
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