mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-27 23:21:01 +00:00
401d1c4f5d
Move this out of the common header and include it only where needed. In a number of cases this requires adding "struct udevice;" to avoid adding another large header or in other cases replacing / adding missing header files that had been pulled in, very indirectly. Finally, we have a few cases where we did not need to include <asm/global_data.h> at all, so remove that include. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Rini <trini@konsulko.com>
148 lines
3.6 KiB
C
148 lines
3.6 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* R7S72100 processor support
|
|
*
|
|
* Copyright (C) 2019 Marek Vasut <marek.vasut@gmail.com>
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <dm.h>
|
|
#include <asm/global_data.h>
|
|
#include <dm/lists.h>
|
|
#include <dm/pinctrl.h>
|
|
#include <linux/bitops.h>
|
|
#include <linux/io.h>
|
|
#include <linux/err.h>
|
|
|
|
#define P(bank) (0x0000 + (bank) * 4)
|
|
#define PSR(bank) (0x0100 + (bank) * 4)
|
|
#define PPR(bank) (0x0200 + (bank) * 4)
|
|
#define PM(bank) (0x0300 + (bank) * 4)
|
|
#define PMC(bank) (0x0400 + (bank) * 4)
|
|
#define PFC(bank) (0x0500 + (bank) * 4)
|
|
#define PFCE(bank) (0x0600 + (bank) * 4)
|
|
#define PNOT(bank) (0x0700 + (bank) * 4)
|
|
#define PMSR(bank) (0x0800 + (bank) * 4)
|
|
#define PMCSR(bank) (0x0900 + (bank) * 4)
|
|
#define PFCAE(bank) (0x0A00 + (bank) * 4)
|
|
#define PIBC(bank) (0x4000 + (bank) * 4)
|
|
#define PBDC(bank) (0x4100 + (bank) * 4)
|
|
#define PIPC(bank) (0x4200 + (bank) * 4)
|
|
|
|
#define RZA1_PINS_PER_PORT 16
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
struct r7s72100_pfc_plat {
|
|
void __iomem *base;
|
|
};
|
|
|
|
static void r7s72100_pfc_set_function(struct udevice *dev, u16 bank, u16 line,
|
|
u16 func, u16 inbuf, u16 bidir)
|
|
{
|
|
struct r7s72100_pfc_plat *plat = dev_get_plat(dev);
|
|
|
|
clrsetbits_le16(plat->base + PFCAE(bank), BIT(line),
|
|
(func & BIT(2)) ? BIT(line) : 0);
|
|
clrsetbits_le16(plat->base + PFCE(bank), BIT(line),
|
|
(func & BIT(1)) ? BIT(line) : 0);
|
|
clrsetbits_le16(plat->base + PFC(bank), BIT(line),
|
|
(func & BIT(0)) ? BIT(line) : 0);
|
|
|
|
clrsetbits_le16(plat->base + PIBC(bank), BIT(line),
|
|
inbuf ? BIT(line) : 0);
|
|
clrsetbits_le16(plat->base + PBDC(bank), BIT(line),
|
|
bidir ? BIT(line) : 0);
|
|
|
|
setbits_le32(plat->base + PMCSR(bank), BIT(line + 16) | BIT(line));
|
|
|
|
setbits_le16(plat->base + PIPC(bank), BIT(line));
|
|
}
|
|
|
|
static int r7s72100_pfc_set_state(struct udevice *dev, struct udevice *config)
|
|
{
|
|
const void *blob = gd->fdt_blob;
|
|
int node = dev_of_offset(config);
|
|
u32 cells[32];
|
|
u16 bank, line, func;
|
|
int i, count, bidir;
|
|
|
|
count = fdtdec_get_int_array_count(blob, node, "pinmux",
|
|
cells, ARRAY_SIZE(cells));
|
|
if (count < 0) {
|
|
printf("%s: bad pinmux array %d\n", __func__, count);
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (count > ARRAY_SIZE(cells)) {
|
|
printf("%s: unsupported pinmux array count %d\n",
|
|
__func__, count);
|
|
return -EINVAL;
|
|
}
|
|
|
|
for (i = 0 ; i < count; i++) {
|
|
func = (cells[i] >> 16) & 0xf;
|
|
if (func == 0 || func > 8) {
|
|
printf("Invalid cell %i in node %s!\n",
|
|
count, ofnode_get_name(dev_ofnode(config)));
|
|
continue;
|
|
}
|
|
|
|
func = (func - 1) & 0x7;
|
|
|
|
bank = (cells[i] / RZA1_PINS_PER_PORT) & 0xff;
|
|
line = cells[i] % RZA1_PINS_PER_PORT;
|
|
|
|
bidir = 0;
|
|
if (bank == 3 && line == 3 && func == 1)
|
|
bidir = 1;
|
|
|
|
r7s72100_pfc_set_function(dev, bank, line, func, 0, bidir);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
const struct pinctrl_ops r7s72100_pfc_ops = {
|
|
.set_state = r7s72100_pfc_set_state,
|
|
};
|
|
|
|
static int r7s72100_pfc_probe(struct udevice *dev)
|
|
{
|
|
struct r7s72100_pfc_plat *plat = dev_get_plat(dev);
|
|
fdt_addr_t addr_base;
|
|
ofnode node;
|
|
|
|
addr_base = dev_read_addr(dev);
|
|
if (addr_base == FDT_ADDR_T_NONE)
|
|
return -EINVAL;
|
|
|
|
plat->base = (void __iomem *)addr_base;
|
|
|
|
dev_for_each_subnode(node, dev) {
|
|
struct udevice *cdev;
|
|
|
|
if (!ofnode_read_bool(node, "gpio-controller"))
|
|
continue;
|
|
|
|
device_bind_driver_to_node(dev, "r7s72100-gpio",
|
|
ofnode_get_name(node),
|
|
node, &cdev);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct udevice_id r7s72100_pfc_match[] = {
|
|
{ .compatible = "renesas,r7s72100-ports" },
|
|
{}
|
|
};
|
|
|
|
U_BOOT_DRIVER(r7s72100_pfc) = {
|
|
.name = "r7s72100_pfc",
|
|
.id = UCLASS_PINCTRL,
|
|
.of_match = r7s72100_pfc_match,
|
|
.probe = r7s72100_pfc_probe,
|
|
.plat_auto = sizeof(struct r7s72100_pfc_plat),
|
|
.ops = &r7s72100_pfc_ops,
|
|
};
|