/* Flush all TLB entries. */
void
__flush_tlb_all(void)
{
int i;
int mmu;
unsigned long flags;
unsigned long mmu_tlb_hi;
unsigned long mmu_tlb_sel;
/*
* Mask with 0xf so similar TLB entries aren't written in the same 4-way
* entry group.
*/
local_irq_save(flags);
for (mmu = 1; mmu <= 2; mmu++) {
SUPP_BANK_SEL(mmu); /* Select the MMU */
for (i = 0; i < NUM_TLB_ENTRIES; i++) {
/* Store invalid entry */
mmu_tlb_sel = REG_FIELD(mmu, rw_mm_tlb_sel, idx, i);
mmu_tlb_hi = (REG_FIELD(mmu, rw_mm_tlb_hi, pid, INVALID_PAGEID)
| REG_FIELD(mmu, rw_mm_tlb_hi, vpn, i & 0xf));
SUPP_REG_WR(RW_MM_TLB_SEL, mmu_tlb_sel);
SUPP_REG_WR(RW_MM_TLB_HI, mmu_tlb_hi);
SUPP_REG_WR(RW_MM_TLB_LO, 0);
}
}
local_irq_restore(flags);
}
static int uni_player_parse_dt_audio_glue(struct platform_device *pdev,
struct uniperif *player)
{
struct device_node *node = pdev->dev.of_node;
struct regmap *regmap;
struct reg_field regfield[2] = {
/* PCM_CLK_SEL */
REG_FIELD(SYS_CFG_AUDIO_GLUE,
8 + player->id,
8 + player->id),
/* PCMP_VALID_SEL */
REG_FIELD(SYS_CFG_AUDIO_GLUE, 0, 1)
};
regmap = syscon_regmap_lookup_by_phandle(node, "st,syscfg");
if (IS_ERR(regmap)) {
dev_err(&pdev->dev, "sti-audio-clk-glue syscf not found\n");
return PTR_ERR(regmap);
}
player->clk_sel = regmap_field_alloc(regmap, regfield[0]);
player->valid_sel = regmap_field_alloc(regmap, regfield[1]);
return 0;
}
/* Flush an entire user address space. */
void
__flush_tlb_mm(struct mm_struct *mm)
{
int i;
int mmu;
unsigned long flags;
unsigned long page_id;
unsigned long tlb_hi;
unsigned long mmu_tlb_hi;
page_id = mm->context.page_id;
if (page_id == NO_CONTEXT)
return;
/* Mark the TLB entries that match the page_id as invalid. */
local_irq_save(flags);
for (mmu = 1; mmu <= 2; mmu++) {
SUPP_BANK_SEL(mmu);
for (i = 0; i < NUM_TLB_ENTRIES; i++) {
UPDATE_TLB_SEL_IDX(i);
/* Get the page_id */
SUPP_REG_RD(RW_MM_TLB_HI, tlb_hi);
/* Check if the page_id match. */
if ((tlb_hi & 0xff) == page_id) {
mmu_tlb_hi = (REG_FIELD(mmu, rw_mm_tlb_hi, pid,
INVALID_PAGEID)
| REG_FIELD(mmu, rw_mm_tlb_hi, vpn,
i & 0xf));
UPDATE_TLB_HILO(mmu_tlb_hi, 0);
}
}
}
local_irq_restore(flags);
}
static DEVICE_ATTR_READER(chipregs_show, dev, buf)
{
xpd_t *xpd;
unsigned long flags;
reg_cmd_t *regs;
bool do_datah;
char datah_str[50];
int len = 0;
BUG_ON(!dev);
xpd = dev_to_xpd(dev);
if (!xpd)
return -ENODEV;
spin_lock_irqsave(&xpd->lock, flags);
regs = &xpd->last_reply;
len += sprintf(buf + len,
"# Writing bad data to this file may damage your hardware!\n");
len += sprintf(buf + len, "# Consult firmware docs first\n");
len += sprintf(buf + len, "#\n");
do_datah = REG_FIELD(regs, do_datah) ? 1 : 0;
if (do_datah) {
snprintf(datah_str, ARRAY_SIZE(datah_str), "\t%02X",
REG_FIELD(regs, data_high));
} else
datah_str[0] = '\0';
if (REG_FIELD(regs, do_subreg)) {
len +=
sprintf(buf + len, "#CH\tOP\tReg.\tSub\tDL%s\n",
(do_datah) ? "\tDH" : "");
len +=
sprintf(buf + len, "%2d\tRS\t%02X\t%02X\t%02X%s\n",
regs->portnum, REG_FIELD(regs, regnum),
REG_FIELD(regs, subreg), REG_FIELD(regs, data_low),
datah_str);
} else {
len +=
sprintf(buf + len, "#CH\tOP\tReg.\tDL%s\n",
(do_datah) ? "\tDH" : "");
len +=
sprintf(buf + len, "%2d\tRD\t%02X\t%02X%s\n", regs->portnum,
REG_FIELD(regs, regnum), REG_FIELD(regs, data_low),
datah_str);
}
spin_unlock_irqrestore(&xpd->lock, flags);
return len;
}
/* Invalidate a single page. */
void
__flush_tlb_page(struct vm_area_struct *vma, unsigned long addr)
{
int i;
int mmu;
unsigned long page_id;
unsigned long flags;
unsigned long tlb_hi;
unsigned long mmu_tlb_hi;
page_id = vma->vm_mm->context.page_id;
if (page_id == NO_CONTEXT)
return;
addr &= PAGE_MASK;
/*
* Invalidate those TLB entries that match both the mm context and the
* requested virtual address.
*/
local_irq_save(flags);
for (mmu = 1; mmu <= 2; mmu++) {
SUPP_BANK_SEL(mmu);
for (i = 0; i < NUM_TLB_ENTRIES; i++) {
UPDATE_TLB_SEL_IDX(i);
SUPP_REG_RD(RW_MM_TLB_HI, tlb_hi);
/* Check if page_id and address matches */
if (((tlb_hi & 0xff) == page_id) &&
((tlb_hi & PAGE_MASK) == addr)) {
mmu_tlb_hi = REG_FIELD(mmu, rw_mm_tlb_hi, pid,
INVALID_PAGEID) | addr;
UPDATE_TLB_HILO(mmu_tlb_hi, 0);
}
}
}
local_irq_restore(flags);
}
/*
* The kernel is already mapped with linear mapping at kseg_c so there's no
* need to map it with a page table. However, head.S also temporarily mapped it
* at kseg_4 thus the ksegs are set up again. Also clear the TLB and do various
* other paging stuff.
*/
void __init
cris_mmu_init(void)
{
unsigned long mmu_config;
unsigned long mmu_kbase_hi;
unsigned long mmu_kbase_lo;
unsigned short mmu_page_id;
/*
* Make sure the current pgd table points to something sane, even if it
* is most probably not used until the next switch_mm.
*/
per_cpu(current_pgd, smp_processor_id()) = init_mm.pgd;
#ifdef CONFIG_SMP
{
pgd_t **pgd;
pgd = (pgd_t**)&per_cpu(current_pgd, smp_processor_id());
SUPP_BANK_SEL(1);
SUPP_REG_WR(RW_MM_TLB_PGD, pgd);
SUPP_BANK_SEL(2);
SUPP_REG_WR(RW_MM_TLB_PGD, pgd);
}
#endif
/* Initialise the TLB. Function found in tlb.c. */
tlb_init();
/* Enable exceptions and initialize the kernel segments. */
mmu_config = ( REG_STATE(mmu, rw_mm_cfg, we, on) |
REG_STATE(mmu, rw_mm_cfg, acc, on) |
REG_STATE(mmu, rw_mm_cfg, ex, on) |
REG_STATE(mmu, rw_mm_cfg, inv, on) |
REG_STATE(mmu, rw_mm_cfg, seg_f, linear) |
REG_STATE(mmu, rw_mm_cfg, seg_e, linear) |
REG_STATE(mmu, rw_mm_cfg, seg_d, page) |
REG_STATE(mmu, rw_mm_cfg, seg_c, linear) |
REG_STATE(mmu, rw_mm_cfg, seg_b, linear) |
#ifndef CONFIG_ETRAX_VCS_SIM
REG_STATE(mmu, rw_mm_cfg, seg_a, page) |
#else
REG_STATE(mmu, rw_mm_cfg, seg_a, linear) |
#endif
REG_STATE(mmu, rw_mm_cfg, seg_9, page) |
REG_STATE(mmu, rw_mm_cfg, seg_8, page) |
REG_STATE(mmu, rw_mm_cfg, seg_7, page) |
REG_STATE(mmu, rw_mm_cfg, seg_6, page) |
REG_STATE(mmu, rw_mm_cfg, seg_5, page) |
REG_STATE(mmu, rw_mm_cfg, seg_4, page) |
REG_STATE(mmu, rw_mm_cfg, seg_3, page) |
REG_STATE(mmu, rw_mm_cfg, seg_2, page) |
REG_STATE(mmu, rw_mm_cfg, seg_1, page) |
REG_STATE(mmu, rw_mm_cfg, seg_0, page));
mmu_kbase_hi = ( REG_FIELD(mmu, rw_mm_kbase_hi, base_f, 0x0) |
REG_FIELD(mmu, rw_mm_kbase_hi, base_e, 0x8) |
REG_FIELD(mmu, rw_mm_kbase_hi, base_d, 0x0) |
REG_FIELD(mmu, rw_mm_kbase_hi, base_c, 0x4) |
REG_FIELD(mmu, rw_mm_kbase_hi, base_b, 0xb) |
#ifndef CONFIG_ETRAX_VCS_SIM
REG_FIELD(mmu, rw_mm_kbase_hi, base_a, 0x0) |
#else
REG_FIELD(mmu, rw_mm_kbase_hi, base_a, 0xa) |
#endif
REG_FIELD(mmu, rw_mm_kbase_hi, base_9, 0x0) |
REG_FIELD(mmu, rw_mm_kbase_hi, base_8, 0x0));
mmu_kbase_lo = ( REG_FIELD(mmu, rw_mm_kbase_lo, base_7, 0x0) |
REG_FIELD(mmu, rw_mm_kbase_lo, base_6, 0x0) |
REG_FIELD(mmu, rw_mm_kbase_lo, base_5, 0x0) |
REG_FIELD(mmu, rw_mm_kbase_lo, base_4, 0x0) |
REG_FIELD(mmu, rw_mm_kbase_lo, base_3, 0x0) |
REG_FIELD(mmu, rw_mm_kbase_lo, base_2, 0x0) |
REG_FIELD(mmu, rw_mm_kbase_lo, base_1, 0x0) |
REG_FIELD(mmu, rw_mm_kbase_lo, base_0, 0x0));
mmu_page_id = REG_FIELD(mmu, rw_mm_tlb_hi, pid, 0);
/* Update the instruction MMU. */
SUPP_BANK_SEL(BANK_IM);
SUPP_REG_WR(RW_MM_CFG, mmu_config);
SUPP_REG_WR(RW_MM_KBASE_HI, mmu_kbase_hi);
SUPP_REG_WR(RW_MM_KBASE_LO, mmu_kbase_lo);
SUPP_REG_WR(RW_MM_TLB_HI, mmu_page_id);
/* Update the data MMU. */
SUPP_BANK_SEL(BANK_DM);
SUPP_REG_WR(RW_MM_CFG, mmu_config);
SUPP_REG_WR(RW_MM_KBASE_HI, mmu_kbase_hi);
SUPP_REG_WR(RW_MM_KBASE_LO, mmu_kbase_lo);
SUPP_REG_WR(RW_MM_TLB_HI, mmu_page_id);
SPEC_REG_WR(SPEC_REG_PID, 0);
/*
* The MMU has been enabled ever since head.S but just to make it
* totally obvious enable it here as well.
*/
SUPP_BANK_SEL(BANK_GC);
SUPP_REG_WR(RW_GC_CFG, 0xf); /* IMMU, DMMU, ICache, DCache on */
}
.desc.name = "DA9062 BUCK1",
.desc.of_match = of_match_ptr("buck1"),
.desc.regulators_node = of_match_ptr("regulators"),
.desc.ops = &da9062_buck_ops,
.desc.min_uV = (300) * 1000,
.desc.uV_step = (10) * 1000,
.desc.n_voltages = ((1570) - (300))/(10) + 1,
.current_limits = da9062_buck_a_limits,
.n_current_limits = ARRAY_SIZE(da9062_buck_a_limits),
.desc.enable_reg = DA9062AA_BUCK1_CONT,
.desc.enable_mask = DA9062AA_BUCK1_EN_MASK,
.desc.vsel_reg = DA9062AA_VBUCK1_A,
.desc.vsel_mask = DA9062AA_VBUCK1_A_MASK,
.desc.linear_min_sel = 0,
.sleep = REG_FIELD(DA9062AA_VBUCK1_A,
__builtin_ffs((int)DA9062AA_BUCK1_SL_A_MASK) - 1,
sizeof(unsigned int) * 8 -
__builtin_clz((DA9062AA_BUCK1_SL_A_MASK)) - 1),
.suspend_sleep = REG_FIELD(DA9062AA_VBUCK1_B,
__builtin_ffs((int)DA9062AA_BUCK1_SL_B_MASK) - 1,
sizeof(unsigned int) * 8 -
__builtin_clz((DA9062AA_BUCK1_SL_B_MASK)) - 1),
.suspend_vsel_reg = DA9062AA_VBUCK1_B,
.mode = REG_FIELD(DA9062AA_BUCK1_CFG,
__builtin_ffs((int)DA9062AA_BUCK1_MODE_MASK) - 1,
sizeof(unsigned int) * 8 -
__builtin_clz((DA9062AA_BUCK1_MODE_MASK)) - 1),
.suspend = REG_FIELD(DA9062AA_DVC_1,
__builtin_ffs((int)DA9062AA_VBUCK1_SEL_MASK) - 1,
sizeof(unsigned int) * 8 -
__builtin_clz((DA9062AA_VBUCK1_SEL_MASK)) - 1),
.ilimit = REG_FIELD(DA9062AA_BUCK_ILIM_C,
#define LTR501_PS_DATA_MASK 0x7ff
#define LTR501_PS_THRESH_MASK 0x7ff
#define LTR501_ALS_THRESH_MASK 0xffff
#define LTR501_ALS_DEF_PERIOD 500000
#define LTR501_PS_DEF_PERIOD 100000
#define LTR501_REGMAP_NAME "ltr501_regmap"
#define LTR501_LUX_CONV(vis_coeff, vis_data, ir_coeff, ir_data) \
((vis_coeff * vis_data) - (ir_coeff * ir_data))
static const int int_time_mapping[] = {100000, 50000, 200000, 400000};
static const struct reg_field reg_field_it =
REG_FIELD(LTR501_ALS_MEAS_RATE, 3, 4);
static const struct reg_field reg_field_als_intr =
REG_FIELD(LTR501_INTR, 1, 1);
static const struct reg_field reg_field_ps_intr =
REG_FIELD(LTR501_INTR, 0, 0);
static const struct reg_field reg_field_als_rate =
REG_FIELD(LTR501_ALS_MEAS_RATE, 0, 2);
static const struct reg_field reg_field_ps_rate =
REG_FIELD(LTR501_PS_MEAS_RATE, 0, 3);
static const struct reg_field reg_field_als_prst =
REG_FIELD(LTR501_INTR_PRST, 0, 3);
static const struct reg_field reg_field_ps_prst =
REG_FIELD(LTR501_INTR_PRST, 4, 7);
struct ltr501_samp_table {
int freq_val; /* repetition frequency in micro HZ*/
"0.023680 0.047360 0.094720 0.189440 0.378880 0.757760 1.515520 " \
"3.031040 6.062080"
#define STK3310_REGFIELD(name) \
do { \
data->reg_##name = \
devm_regmap_field_alloc(&client->dev, regmap, \
stk3310_reg_field_##name); \
if (IS_ERR(data->reg_##name)) { \
dev_err(&client->dev, "reg field alloc failed.\n"); \
return PTR_ERR(data->reg_##name); \
} \
} while (0)
static const struct reg_field stk3310_reg_field_state =
REG_FIELD(STK3310_REG_STATE, 0, 2);
static const struct reg_field stk3310_reg_field_als_gain =
REG_FIELD(STK3310_REG_ALSCTRL, 4, 5);
static const struct reg_field stk3310_reg_field_ps_gain =
REG_FIELD(STK3310_REG_PSCTRL, 4, 5);
static const struct reg_field stk3310_reg_field_als_it =
REG_FIELD(STK3310_REG_ALSCTRL, 0, 3);
static const struct reg_field stk3310_reg_field_ps_it =
REG_FIELD(STK3310_REG_PSCTRL, 0, 3);
static const struct reg_field stk3310_reg_field_int_ps =
REG_FIELD(STK3310_REG_INT, 0, 2);
static const struct reg_field stk3310_reg_field_flag_psint =
REG_FIELD(STK3310_REG_FLAG, 4, 4);
static const struct reg_field stk3310_reg_field_flag_nf =
REG_FIELD(STK3310_REG_FLAG, 0, 0);
void dump_reg_cmd(const char msg[], bool writing, xbus_t *xbus,
byte unit, xportno_t port, const reg_cmd_t *regcmd)
{
char action;
char modifier;
char port_buf[MAX_PROC_WRITE];
char reg_buf[MAX_PROC_WRITE];
char data_buf[MAX_PROC_WRITE];
if(regcmd->bytes > sizeof(*regcmd) - 1) { /* The size byte is not included */
PORT_NOTICE(xbus, unit, port, "%s: %s: Too long: regcmd->bytes = %d\n",
__FUNCTION__, msg, regcmd->bytes);
return;
}
if(regcmd->is_multibyte) {
char buf[MAX_PROC_WRITE + 1];
int i;
int n = 0;
size_t len = regcmd->bytes;
const byte *p = REG_XDATA(regcmd);
buf[0] = '\0';
for(i = 0; i < len && n < MAX_PROC_WRITE; i++)
n += snprintf(&buf[n], MAX_PROC_WRITE - n, "%02X ", p[i]);
PORT_DBG(REGS, xbus, unit, port,
"UNIT-%d PORT-%d: Multibyte(eoframe=%d) %s[0..%zd]: %s%s\n",
unit, port, regcmd->eoframe,
msg, len-1, buf, (n >= MAX_PROC_WRITE)?"...":"");
return;
}
if(regcmd->bytes != sizeof(*regcmd) - 1) { /* The size byte is not included */
PORT_NOTICE(xbus, unit, port, "%s: %s: Wrong size: regcmd->bytes = %d\n",
__FUNCTION__, msg, regcmd->bytes);
return;
}
snprintf(port_buf, MAX_PROC_WRITE, "%d%s",
regcmd->portnum,
(REG_FIELD(regcmd, all_ports_broadcast)) ? "*" : "");
action = (REG_FIELD(regcmd, read_request)) ? 'R' : 'W';
modifier = 'D';
if(REG_FIELD(regcmd, do_subreg)) {
snprintf(reg_buf, MAX_PROC_WRITE, "%02X %02X",
REG_FIELD(regcmd, regnum),
REG_FIELD(regcmd, subreg));
modifier = 'S';
} else {
snprintf(reg_buf, MAX_PROC_WRITE, "%02X",
REG_FIELD(regcmd, regnum));
}
if(REG_FIELD(regcmd, read_request)) {
data_buf[0] = '\0';
} else if(REG_FIELD(regcmd, do_datah)) {
snprintf(data_buf, MAX_PROC_WRITE, "%02X %02X",
REG_FIELD(regcmd, data_low),
REG_FIELD(regcmd, data_high));
modifier = 'I';
} else {
snprintf(data_buf, MAX_PROC_WRITE, "%02X",
REG_FIELD(regcmd, data_low));
}
PORT_DBG(REGS, xbus, unit, port, "%s: %s %c%c %s %s\n",
msg, port_buf, action, modifier,
reg_buf, data_buf);
}