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Diffstat (limited to 'arch/arm/cpu/tegra20-common/pinmux.c')
-rw-r--r--arch/arm/cpu/tegra20-common/pinmux.c124
1 files changed, 3 insertions, 121 deletions
diff --git a/arch/arm/cpu/tegra20-common/pinmux.c b/arch/arm/cpu/tegra20-common/pinmux.c
index 14467f01f5..9e34c8bec0 100644
--- a/arch/arm/cpu/tegra20-common/pinmux.c
+++ b/arch/arm/cpu/tegra20-common/pinmux.c
@@ -8,10 +8,8 @@
#include <common.h>
#include <asm/io.h>
-#include <asm/arch/tegra.h>
#include <asm/arch/pinmux.h>
-
/*
* This defines the order of the pin mux control bits in the registers. For
* some reason there is no correspendence between the tristate, pin mux and
@@ -256,32 +254,6 @@ enum pmux_pullid {
PUCTL_NONE = -1
};
-struct tegra_pingroup_desc {
- const char *name;
- enum pmux_func funcs[4];
- enum pmux_ctlid ctl_id;
- enum pmux_pullid pull_id;
-};
-
-
-/* Converts a pmux_pingrp number to a tristate register: 0=A, 1=B, 2=C, 3=D */
-#define TRISTATE_REG(pmux_pingrp) ((pmux_pingrp) >> 5)
-
-/* Mask value for a tristate (within TRISTATE_REG(id)) */
-#define TRISTATE_MASK(pmux_pingrp) (1 << ((pmux_pingrp) & 0x1f))
-
-/* Converts a PUCTL id to a pull register: 0=A, 1=B...4=E */
-#define PULL_REG(pmux_pullid) ((pmux_pullid) >> 4)
-
-/* Converts a PUCTL id to a shift position */
-#define PULL_SHIFT(pmux_pullid) ((pmux_pullid << 1) & 0x1f)
-
-/* Converts a MUXCTL id to a ctl register: 0=A, 1=B...6=G */
-#define MUXCTL_REG(pmux_ctlid) ((pmux_ctlid) >> 4)
-
-/* Converts a MUXCTL id to a shift position */
-#define MUXCTL_SHIFT(pmux_ctlid) ((pmux_ctlid << 1) & 0x1f)
-
/* Convenient macro for defining pin group properties */
#define PINALL(pg_name, vdd, f0, f1, f2, f3, f_safe, mux, pupd) \
{ \
@@ -309,9 +281,9 @@ struct tegra_pingroup_desc {
#define PIN_RESERVED \
PIN(NONE, NONE, RSVD, RSVD, RSVD, RSVD, RSVD)
-#define PMUX_FUNC_RSVD ((enum pmux_func)-1)
+#define PMUX_FUNC_RSVD PMUX_FUNC_RSVD1
-const struct tegra_pingroup_desc tegra_soc_pingroups[PINGRP_COUNT] = {
+static const struct tegra_pingroup_desc tegra20_pingroups[] = {
PIN(ATA, NAND, IDE, NAND, GMI, RSVD, IDE),
PIN(ATB, NAND, IDE, NAND, GMI, SDIO4, IDE),
PIN(ATC, NAND, IDE, NAND, GMI, SDIO4, IDE),
@@ -462,94 +434,4 @@ const struct tegra_pingroup_desc tegra_soc_pingroups[PINGRP_COUNT] = {
PINALL(XM2D, DDR, RSVD, RSVD, RSVD, RSVD, RSVD, MUXCTL_NONE,
PUCTL_NONE),
};
-
-void pinmux_set_tristate(enum pmux_pingrp pin, int enable)
-{
- struct pmux_tri_ctlr *pmt =
- (struct pmux_tri_ctlr *)NV_PA_APB_MISC_BASE;
- u32 *tri = &pmt->pmt_tri[TRISTATE_REG(pin)];
- u32 reg;
-
- reg = readl(tri);
- if (enable)
- reg |= TRISTATE_MASK(pin);
- else
- reg &= ~TRISTATE_MASK(pin);
- writel(reg, tri);
-}
-
-void pinmux_tristate_enable(enum pmux_pingrp pin)
-{
- pinmux_set_tristate(pin, 1);
-}
-
-void pinmux_tristate_disable(enum pmux_pingrp pin)
-{
- pinmux_set_tristate(pin, 0);
-}
-
-void pinmux_set_pullupdown(enum pmux_pingrp pin, enum pmux_pull pupd)
-{
- struct pmux_tri_ctlr *pmt =
- (struct pmux_tri_ctlr *)NV_PA_APB_MISC_BASE;
- enum pmux_pullid pull_id = tegra_soc_pingroups[pin].pull_id;
- u32 *pull = &pmt->pmt_pull[PULL_REG(pull_id)];
- u32 mask_bit;
- u32 reg;
- mask_bit = PULL_SHIFT(pull_id);
-
- reg = readl(pull);
- reg &= ~(0x3 << mask_bit);
- reg |= pupd << mask_bit;
- writel(reg, pull);
-}
-
-void pinmux_set_func(enum pmux_pingrp pin, enum pmux_func func)
-{
- struct pmux_tri_ctlr *pmt =
- (struct pmux_tri_ctlr *)NV_PA_APB_MISC_BASE;
- enum pmux_ctlid mux_id = tegra_soc_pingroups[pin].ctl_id;
- u32 *muxctl = &pmt->pmt_ctl[MUXCTL_REG(mux_id)];
- u32 mask_bit;
- int i, mux = -1;
- u32 reg;
-
- assert(pmux_func_isvalid(func));
-
- /* Handle special values */
- if (func >= PMUX_FUNC_RSVD1) {
- mux = (func - PMUX_FUNC_RSVD1) & 0x3;
- } else {
- /* Search for the appropriate function */
- for (i = 0; i < 4; i++) {
- if (tegra_soc_pingroups[pin].funcs[i] == func) {
- mux = i;
- break;
- }
- }
- }
- assert(mux != -1);
-
- mask_bit = MUXCTL_SHIFT(mux_id);
- reg = readl(muxctl);
- reg &= ~(0x3 << mask_bit);
- reg |= mux << mask_bit;
- writel(reg, muxctl);
-}
-
-void pinmux_config_pingroup(const struct pingroup_config *config)
-{
- enum pmux_pingrp pin = config->pingroup;
-
- pinmux_set_func(pin, config->func);
- pinmux_set_pullupdown(pin, config->pull);
- pinmux_set_tristate(pin, config->tristate);
-}
-
-void pinmux_config_table(const struct pingroup_config *config, int len)
-{
- int i;
-
- for (i = 0; i < len; i++)
- pinmux_config_pingroup(&config[i]);
-}
+const struct tegra_pingroup_desc *tegra_soc_pingroups = tegra20_pingroups;