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authorStephen Warren <swarren@nvidia.com>2014-03-21 12:28:54 -0600
committerTom Warren <twarren@nvidia.com>2014-04-17 08:41:05 -0700
commite296995767e645ed047bcbec90923297a24d4d5a (patch)
tree0ff4f2cf5c6982a2cd2f5fe9d05db5d26ad9dc59 /arch/arm/include/asm/arch-tegra20
parent19ed7b4ecf6bdcf991d0a63aac3faa80b6df43cb (diff)
ARM: tegra: pinctrl: remove duplication
Much of arch/arm/cpu/tegra*-common/pinmux.c is identical. Remove the duplication by creating pinmux-common.c for all the identical code. This leaves: * arch/arm/include/asm/arch-tegra*/pinmux.h defining only the names of the various pins/pin groups, drive groups, and mux functions. * arch/arm/cpu/tegra*-common/pinmux.c containing only the lookup table stating which pin groups support which mux functions. The code in pinmux-common.c is semantically identical to that in the various original pinmux.c, but had some consistency and cleanup fixes applied during migration. I removed the definition of struct pmux_tri_ctlr, since this is different between SoCs (especially Tegra20 vs all others), and it's much simpler to deal with this via the new REG/MUX_REG/... defines. spl.c, warmboot.c, and warmboot_avp.c needed updates due to this, since they previously hijacked this struct to encode the location of some non-pinmux registers. Now, that code simply calculates these register addresses directly using simple and obvious math. I like this method better irrespective of the pinmux code cleanup anyway. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
Diffstat (limited to 'arch/arm/include/asm/arch-tegra20')
-rw-r--r--arch/arm/include/asm/arch-tegra20/pinmux.h85
1 files changed, 4 insertions, 81 deletions
diff --git a/arch/arm/include/asm/arch-tegra20/pinmux.h b/arch/arm/include/asm/arch-tegra20/pinmux.h
index 1980201ce8..5517c0783d 100644
--- a/arch/arm/include/asm/arch-tegra20/pinmux.h
+++ b/arch/arm/include/asm/arch-tegra20/pinmux.h
@@ -5,8 +5,8 @@
* SPDX-License-Identifier: GPL-2.0+
*/
-#ifndef _PINMUX_H_
-#define _PINMUX_H_
+#ifndef _TEGRA20_PINMUX_H_
+#define _TEGRA20_PINMUX_H_
/*
* Pin groups which we adjust. There are three basic attributes of each pin
@@ -236,83 +236,6 @@ enum pmux_func {
PMUX_FUNC_RSVD4 = 0x8003,
};
-/* return 1 if a pmux_func is in range */
-#define pmux_func_isvalid(func) \
- ((((func) >= 0) && ((func) < PMUX_FUNC_COUNT)) ||\
- (((func) >= PMUX_FUNC_RSVD1) && ((func) <= PMUX_FUNC_RSVD4)))
+#include <asm/arch-tegra/pinmux.h>
-/* The pullup/pulldown state of a pin group */
-enum pmux_pull {
- PMUX_PULL_NORMAL = 0,
- PMUX_PULL_DOWN,
- PMUX_PULL_UP,
-};
-
-/* Defines whether a pin group is tristated or in normal operation */
-enum pmux_tristate {
- PMUX_TRI_NORMAL = 0,
- PMUX_TRI_TRISTATE = 1,
-};
-
-enum {
- PMUX_TRISTATE_REGS = 4,
- PMUX_MUX_REGS = 7,
- PMUX_PULL_REGS = 5,
-};
-
-/* APB MISC Pin Mux and Tristate (APB_MISC_PP_) registers */
-struct pmux_tri_ctlr {
- uint pmt_reserved0; /* ABP_MISC_PP_ reserved offset 00 */
- uint pmt_reserved1; /* ABP_MISC_PP_ reserved offset 04 */
- uint pmt_strap_opt_a; /* _STRAPPING_OPT_A_0, offset 08 */
- uint pmt_reserved2; /* ABP_MISC_PP_ reserved offset 0C */
- uint pmt_reserved3; /* ABP_MISC_PP_ reserved offset 10 */
- uint pmt_tri[PMUX_TRISTATE_REGS];/* _TRI_STATE_REG_A/B/C/D_0 14-20 */
- uint pmt_cfg_ctl; /* _CONFIG_CTL_0, offset 24 */
-
- uint pmt_reserved[22]; /* ABP_MISC_PP_ reserved offs 28-7C */
-
- uint pmt_ctl[PMUX_MUX_REGS]; /* _PIN_MUX_CTL_A-G_0, offset 80 */
- uint pmt_reserved4; /* ABP_MISC_PP_ reserved offset 9c */
- uint pmt_pull[PMUX_PULL_REGS]; /* APB_MISC_PP_PULLUPDOWN_REG_A-E */
-};
-
-/*
- * This defines the configuration for a pin, including the function assigned,
- * pull up/down settings and tristate settings. Having set up one of these
- * you can call pinmux_config_pingroup() to configure a pin in one step. Also
- * available is pinmux_config_table() to configure a list of pins.
- */
-struct pingroup_config {
- enum pmux_pingrp pingroup; /* pin group PINGRP_... */
- enum pmux_func func; /* function to assign FUNC_... */
- enum pmux_pull pull; /* pull up/down/normal PMUX_PULL_...*/
- enum pmux_tristate tristate; /* tristate or normal PMUX_TRI_... */
-};
-
-/* Set a pin group to tristate */
-void pinmux_tristate_enable(enum pmux_pingrp pin);
-
-/* Set a pin group to normal (non tristate) */
-void pinmux_tristate_disable(enum pmux_pingrp pin);
-
-/* Set the pull up/down feature for a pin group */
-void pinmux_set_pullupdown(enum pmux_pingrp pin, enum pmux_pull pupd);
-
-/* Set the mux function for a pin group */
-void pinmux_set_func(enum pmux_pingrp pin, enum pmux_func func);
-
-/* Set the complete configuration for a pin group */
-void pinmux_config_pingroup(const struct pingroup_config *config);
-
-void pinmux_set_tristate(enum pmux_pingrp pin, int enable);
-
-/**
- * Configuure a list of pin groups
- *
- * @param config List of config items
- * @param len Number of config items in list
- */
-void pinmux_config_table(const struct pingroup_config *config, int len);
-
-#endif /* PINMUX_H */
+#endif /* _TEGRA20_PINMUX_H_ */