From: Min Li <[email protected]>
We used to assume 0x2010xxxx address. Now that
we need to access 0x2011xxxx address, we need
to support read/write the whole 32-bit address space.
Signed-off-by: Min Li <[email protected]>
---
- Drop MAX_ABS_WRITE_PHASE_PICOSECONDS advised by Rahul
- Apply SCSR_ADDR to scrach register in idtcm_load_firmware advised by Simon
- Apply u32 to base in idtcm_output_enable advised by Simon
- Correct sync_ctrl0/1 parameter position for idtcm_write advised by Simon
drivers/ptp/ptp_clockmatrix.c | 71 ++--
drivers/ptp/ptp_clockmatrix.h | 32 +-
include/linux/mfd/idt8a340_reg.h | 542 ++++++++++++++++---------------
3 files changed, 331 insertions(+), 314 deletions(-)
diff --git a/drivers/ptp/ptp_clockmatrix.c b/drivers/ptp/ptp_clockmatrix.c
index f6f9d4adce04..1d5da77502e6 100644
--- a/drivers/ptp/ptp_clockmatrix.c
+++ b/drivers/ptp/ptp_clockmatrix.c
@@ -41,7 +41,7 @@ module_param(firmware, charp, 0);
static int _idtcm_adjfine(struct idtcm_channel *channel, long scaled_ppm);
static inline int idtcm_read(struct idtcm *idtcm,
- u16 module,
+ u32 module,
u16 regaddr,
u8 *buf,
u16 count)
@@ -50,7 +50,7 @@ static inline int idtcm_read(struct idtcm *idtcm,
}
static inline int idtcm_write(struct idtcm *idtcm,
- u16 module,
+ u32 module,
u16 regaddr,
u8 *buf,
u16 count)
@@ -62,7 +62,8 @@ static int contains_full_configuration(struct idtcm *idtcm,
const struct firmware *fw)
{
struct idtcm_fwrc *rec = (struct idtcm_fwrc *)fw->data;
- u16 scratch = IDTCM_FW_REG(idtcm->fw_ver, V520, SCRATCH);
+ u16 scratch = SCSR_ADDR(IDTCM_FW_REG(idtcm->fw_ver, V520, SCRATCH));
+ u16 gpio_control = SCSR_ADDR(GPIO_USER_CONTROL);
s32 full_count;
s32 count = 0;
u16 regaddr;
@@ -70,8 +71,8 @@ static int contains_full_configuration(struct idtcm *idtcm,
s32 len;
/* 4 bytes skipped every 0x80 */
- full_count = (scratch - GPIO_USER_CONTROL) -
- ((scratch >> 7) - (GPIO_USER_CONTROL >> 7)) * 4;
+ full_count = (scratch - gpio_control) -
+ ((scratch >> 7) - (gpio_control >> 7)) * 4;
/* If the firmware contains 'full configuration' SM_RESET can be used
* to ensure proper configuration.
@@ -88,7 +89,7 @@ static int contains_full_configuration(struct idtcm *idtcm,
rec++;
/* Top (status registers) and bottom are read-only */
- if (regaddr < GPIO_USER_CONTROL || regaddr >= scratch)
+ if (regaddr < gpio_control || regaddr >= scratch)
continue;
/* Page size 128, last 4 bytes of page skipped */
@@ -506,8 +507,8 @@ static int _sync_pll_output(struct idtcm *idtcm,
{
int err;
u8 val;
- u16 sync_ctrl0;
- u16 sync_ctrl1;
+ u32 sync_ctrl0;
+ u32 sync_ctrl1;
u8 temp;
if (qn == 0 && qn_plus_1 == 0)
@@ -553,11 +554,11 @@ static int _sync_pll_output(struct idtcm *idtcm,
val = SYNCTRL1_MASTER_SYNC_RST;
/* Place master sync in reset */
- err = idtcm_write(idtcm, 0, sync_ctrl1, &val, sizeof(val));
+ err = idtcm_write(idtcm, sync_ctrl1, 0, &val, sizeof(val));
if (err)
return err;
- err = idtcm_write(idtcm, 0, sync_ctrl0, &sync_src, sizeof(sync_src));
+ err = idtcm_write(idtcm, sync_ctrl0, 0, &sync_src, sizeof(sync_src));
if (err)
return err;
@@ -570,27 +571,27 @@ static int _sync_pll_output(struct idtcm *idtcm,
if (qn_plus_1)
val |= SYNCTRL1_Q1_DIV_SYNC_TRIG;
- err = idtcm_write(idtcm, 0, sync_ctrl1, &val, sizeof(val));
+ err = idtcm_write(idtcm, sync_ctrl1, 0, &val, sizeof(val));
if (err)
return err;
/* PLL5 can have OUT8 as second additional output. */
if (pll == 5 && qn_plus_1 != 0) {
- err = idtcm_read(idtcm, 0, HW_Q8_CTRL_SPARE,
+ err = idtcm_read(idtcm, HW_Q8_CTRL_SPARE, 0,
&temp, sizeof(temp));
if (err)
return err;
temp &= ~(Q9_TO_Q8_SYNC_TRIG);
- err = idtcm_write(idtcm, 0, HW_Q8_CTRL_SPARE,
+ err = idtcm_write(idtcm, HW_Q8_CTRL_SPARE, 0,
&temp, sizeof(temp));
if (err)
return err;
temp |= Q9_TO_Q8_SYNC_TRIG;
- err = idtcm_write(idtcm, 0, HW_Q8_CTRL_SPARE,
+ err = idtcm_write(idtcm, HW_Q8_CTRL_SPARE, 0,
&temp, sizeof(temp));
if (err)
return err;
@@ -598,21 +599,21 @@ static int _sync_pll_output(struct idtcm *idtcm,
/* PLL6 can have OUT11 as second additional output. */
if (pll == 6 && qn_plus_1 != 0) {
- err = idtcm_read(idtcm, 0, HW_Q11_CTRL_SPARE,
+ err = idtcm_read(idtcm, HW_Q11_CTRL_SPARE, 0,
&temp, sizeof(temp));
if (err)
return err;
temp &= ~(Q10_TO_Q11_SYNC_TRIG);
- err = idtcm_write(idtcm, 0, HW_Q11_CTRL_SPARE,
+ err = idtcm_write(idtcm, HW_Q11_CTRL_SPARE, 0,
&temp, sizeof(temp));
if (err)
return err;
temp |= Q10_TO_Q11_SYNC_TRIG;
- err = idtcm_write(idtcm, 0, HW_Q11_CTRL_SPARE,
+ err = idtcm_write(idtcm, HW_Q11_CTRL_SPARE, 0,
&temp, sizeof(temp));
if (err)
return err;
@@ -620,7 +621,7 @@ static int _sync_pll_output(struct idtcm *idtcm,
/* Place master sync out of reset */
val &= ~(SYNCTRL1_MASTER_SYNC_RST);
- err = idtcm_write(idtcm, 0, sync_ctrl1, &val, sizeof(val));
+ err = idtcm_write(idtcm, sync_ctrl1, 0, &val, sizeof(val));
return err;
}
@@ -637,7 +638,7 @@ static int idtcm_sync_pps_output(struct idtcm_channel *channel)
u8 temp;
u16 output_mask = channel->output_mask;
- err = idtcm_read(idtcm, 0, HW_Q8_CTRL_SPARE,
+ err = idtcm_read(idtcm, HW_Q8_CTRL_SPARE, 0,
&temp, sizeof(temp));
if (err)
return err;
@@ -646,7 +647,7 @@ static int idtcm_sync_pps_output(struct idtcm_channel *channel)
Q9_TO_Q8_FANOUT_AND_CLOCK_SYNC_ENABLE_MASK)
out8_mux = 1;
- err = idtcm_read(idtcm, 0, HW_Q11_CTRL_SPARE,
+ err = idtcm_read(idtcm, HW_Q11_CTRL_SPARE, 0,
&temp, sizeof(temp));
if (err)
return err;
@@ -1253,7 +1254,7 @@ static void display_pll_and_masks(struct idtcm *idtcm)
static int idtcm_load_firmware(struct idtcm *idtcm,
struct device *dev)
{
- u16 scratch = IDTCM_FW_REG(idtcm->fw_ver, V520, SCRATCH);
+ u16 scratch = SCSR_ADDR(IDTCM_FW_REG(idtcm->fw_ver, V520, SCRATCH));
char fname[128] = FW_FILENAME;
const struct firmware *fw;
struct idtcm_fwrc *rec;
@@ -1303,14 +1304,14 @@ static int idtcm_load_firmware(struct idtcm *idtcm,
err = 0;
/* Top (status registers) and bottom are read-only */
- if (regaddr < GPIO_USER_CONTROL || regaddr >= scratch)
+ if (regaddr < SCSR_ADDR(GPIO_USER_CONTROL) || regaddr >= scratch)
continue;
/* Page size 128, last 4 bytes of page skipped */
if ((loaddr > 0x7b && loaddr <= 0x7f) || loaddr > 0xfb)
continue;
- err = idtcm_write(idtcm, regaddr, 0, &val, sizeof(val));
+ err = idtcm_write(idtcm, SCSR_BASE, regaddr, &val, sizeof(val));
}
if (err)
@@ -1340,7 +1341,7 @@ static int idtcm_output_enable(struct idtcm_channel *channel,
return base;
}
- err = idtcm_read(idtcm, (u16)base, OUT_CTRL_1, &val, sizeof(val));
+ err = idtcm_read(idtcm, (u32)base, OUT_CTRL_1, &val, sizeof(val));
if (err)
return err;
@@ -1349,7 +1350,7 @@ static int idtcm_output_enable(struct idtcm_channel *channel,
else
val &= ~SQUELCH_DISABLE;
- return idtcm_write(idtcm, (u16)base, OUT_CTRL_1, &val, sizeof(val));
+ return idtcm_write(idtcm, (u32)base, OUT_CTRL_1, &val, sizeof(val));
}
static int idtcm_perout_enable(struct idtcm_channel *channel,
@@ -1395,6 +1396,20 @@ static int idtcm_set_pll_mode(struct idtcm_channel *channel,
struct idtcm *idtcm = channel->idtcm;
int err;
u8 dpll_mode;
+ u8 timeout = 0;
+
+ /* Setup WF/WP timer for phase pull-in to work correctly */
+ err = idtcm_write(idtcm, channel->dpll_n, DPLL_WF_TIMER,
+ &timeout, sizeof(timeout));
+ if (err)
+ return err;
+
+ if (mode == PLL_MODE_WRITE_PHASE)
+ timeout = 160;
+ err = idtcm_write(idtcm, channel->dpll_n, DPLL_WP_TIMER,
+ &timeout, sizeof(timeout));
+ if (err)
+ return err;
err = idtcm_read(idtcm, channel->dpll_n,
IDTCM_FW_REG(idtcm->fw_ver, V520, DPLL_MODE),
@@ -1705,7 +1720,7 @@ static s32 idtcm_getmaxphase(struct ptp_clock_info *ptp __always_unused)
}
/*
- * Internal function for implementing support for write phase offset
+ * Maximum absolute value for write phase offset in picoseconds
*
* @channel: channel
* @delta_ns: delta in nanoseconds
@@ -1717,6 +1732,7 @@ static int _idtcm_adjphase(struct idtcm_channel *channel, s32 delta_ns)
u8 i;
u8 buf[4] = {0};
s32 phase_50ps;
+ s64 offset_ps;
if (channel->mode != PTP_PLL_MODE_WRITE_PHASE) {
err = channel->configure_write_phase(channel);
@@ -1724,7 +1740,8 @@ static int _idtcm_adjphase(struct idtcm_channel *channel, s32 delta_ns)
return err;
}
- phase_50ps = div_s64((s64)delta_ns * 1000, 50);
+ offset_ps = (s64)delta_ns * 1000;
+ phase_50ps = div_s64(offset_ps, 50);
for (i = 0; i < 4; i++) {
buf[i] = phase_50ps & 0xff;
diff --git a/drivers/ptp/ptp_clockmatrix.h b/drivers/ptp/ptp_clockmatrix.h
index 7c17c4f7f573..ad39dc6decdf 100644
--- a/drivers/ptp/ptp_clockmatrix.h
+++ b/drivers/ptp/ptp_clockmatrix.h
@@ -54,21 +54,9 @@
#define LOCK_TIMEOUT_MS (2000)
#define LOCK_POLL_INTERVAL_MS (10)
-#define IDTCM_MAX_WRITE_COUNT (512)
-
#define PHASE_PULL_IN_MAX_PPB (144000)
#define PHASE_PULL_IN_MIN_THRESHOLD_NS (2)
-/*
- * Return register address based on passed in firmware version
- */
-#define IDTCM_FW_REG(FW, VER, REG) (((FW) < (VER)) ? (REG) : (REG##_##VER))
-enum fw_version {
- V_DEFAULT = 0,
- V487 = 1,
- V520 = 2,
-};
-
/* PTP PLL Mode */
enum ptp_pll_mode {
PTP_PLL_MODE_MIN = 0,
@@ -84,16 +72,16 @@ struct idtcm_channel {
struct ptp_clock_info caps;
struct ptp_clock *ptp_clock;
struct idtcm *idtcm;
- u16 dpll_phase;
- u16 dpll_freq;
- u16 dpll_n;
- u16 dpll_ctrl_n;
- u16 dpll_phase_pull_in;
- u16 tod_read_primary;
- u16 tod_read_secondary;
- u16 tod_write;
- u16 tod_n;
- u16 hw_dpll_n;
+ u32 dpll_phase;
+ u32 dpll_freq;
+ u32 dpll_n;
+ u32 dpll_ctrl_n;
+ u32 dpll_phase_pull_in;
+ u32 tod_read_primary;
+ u32 tod_read_secondary;
+ u32 tod_write;
+ u32 tod_n;
+ u32 hw_dpll_n;
u8 sync_src;
enum ptp_pll_mode mode;
int (*configure_write_frequency)(struct idtcm_channel *channel);
diff --git a/include/linux/mfd/idt8a340_reg.h b/include/linux/mfd/idt8a340_reg.h
index 0c706085c205..b680a0eb5f68 100644
--- a/include/linux/mfd/idt8a340_reg.h
+++ b/include/linux/mfd/idt8a340_reg.h
@@ -7,20 +7,20 @@
#ifndef HAVE_IDT8A340_REG
#define HAVE_IDT8A340_REG
-#define PAGE_ADDR_BASE 0x0000
-#define PAGE_ADDR 0x00fc
+#define SCSR_BASE 0x20100000
+#define SCSR_ADDR(x) ((x) & 0xffff)
-#define HW_REVISION 0x8180
+#define HW_REVISION 0x20108180
#define REV_ID 0x007a
-#define HW_DPLL_0 (0x8a00)
-#define HW_DPLL_1 (0x8b00)
-#define HW_DPLL_2 (0x8c00)
-#define HW_DPLL_3 (0x8d00)
-#define HW_DPLL_4 (0x8e00)
-#define HW_DPLL_5 (0x8f00)
-#define HW_DPLL_6 (0x9000)
-#define HW_DPLL_7 (0x9100)
+#define HW_DPLL_0 (0x20108a00)
+#define HW_DPLL_1 (0x20108b00)
+#define HW_DPLL_2 (0x20108c00)
+#define HW_DPLL_3 (0x20108d00)
+#define HW_DPLL_4 (0x20108e00)
+#define HW_DPLL_5 (0x20108f00)
+#define HW_DPLL_6 (0x20109000)
+#define HW_DPLL_7 (0x20109100)
#define HW_DPLL_TOD_SW_TRIG_ADDR__0 (0x080)
#define HW_DPLL_TOD_CTRL_1 (0x089)
@@ -28,22 +28,22 @@
#define HW_DPLL_TOD_OVR__0 (0x098)
#define HW_DPLL_TOD_OUT_0__0 (0x0B0)
-#define HW_Q0_Q1_CH_SYNC_CTRL_0 (0xa740)
-#define HW_Q0_Q1_CH_SYNC_CTRL_1 (0xa741)
-#define HW_Q2_Q3_CH_SYNC_CTRL_0 (0xa742)
-#define HW_Q2_Q3_CH_SYNC_CTRL_1 (0xa743)
-#define HW_Q4_Q5_CH_SYNC_CTRL_0 (0xa744)
-#define HW_Q4_Q5_CH_SYNC_CTRL_1 (0xa745)
-#define HW_Q6_Q7_CH_SYNC_CTRL_0 (0xa746)
-#define HW_Q6_Q7_CH_SYNC_CTRL_1 (0xa747)
-#define HW_Q8_CH_SYNC_CTRL_0 (0xa748)
-#define HW_Q8_CH_SYNC_CTRL_1 (0xa749)
-#define HW_Q9_CH_SYNC_CTRL_0 (0xa74a)
-#define HW_Q9_CH_SYNC_CTRL_1 (0xa74b)
-#define HW_Q10_CH_SYNC_CTRL_0 (0xa74c)
-#define HW_Q10_CH_SYNC_CTRL_1 (0xa74d)
-#define HW_Q11_CH_SYNC_CTRL_0 (0xa74e)
-#define HW_Q11_CH_SYNC_CTRL_1 (0xa74f)
+#define HW_Q0_Q1_CH_SYNC_CTRL_0 (0x2010a740)
+#define HW_Q0_Q1_CH_SYNC_CTRL_1 (0x2010a741)
+#define HW_Q2_Q3_CH_SYNC_CTRL_0 (0x2010a742)
+#define HW_Q2_Q3_CH_SYNC_CTRL_1 (0x2010a743)
+#define HW_Q4_Q5_CH_SYNC_CTRL_0 (0x2010a744)
+#define HW_Q4_Q5_CH_SYNC_CTRL_1 (0x2010a745)
+#define HW_Q6_Q7_CH_SYNC_CTRL_0 (0x2010a746)
+#define HW_Q6_Q7_CH_SYNC_CTRL_1 (0x2010a747)
+#define HW_Q8_CH_SYNC_CTRL_0 (0x2010a748)
+#define HW_Q8_CH_SYNC_CTRL_1 (0x2010a749)
+#define HW_Q9_CH_SYNC_CTRL_0 (0x2010a74a)
+#define HW_Q9_CH_SYNC_CTRL_1 (0x2010a74b)
+#define HW_Q10_CH_SYNC_CTRL_0 (0x2010a74c)
+#define HW_Q10_CH_SYNC_CTRL_1 (0x2010a74d)
+#define HW_Q11_CH_SYNC_CTRL_0 (0x2010a74e)
+#define HW_Q11_CH_SYNC_CTRL_1 (0x2010a74f)
#define SYNC_SOURCE_DPLL0_TOD_PPS 0x14
#define SYNC_SOURCE_DPLL1_TOD_PPS 0x15
@@ -58,8 +58,8 @@
#define SYNCTRL1_Q1_DIV_SYNC_TRIG BIT(1)
#define SYNCTRL1_Q0_DIV_SYNC_TRIG BIT(0)
-#define HW_Q8_CTRL_SPARE (0xa7d4)
-#define HW_Q11_CTRL_SPARE (0xa7ec)
+#define HW_Q8_CTRL_SPARE (0x2010a7d4)
+#define HW_Q11_CTRL_SPARE (0x2010a7ec)
/**
* Select FOD5 as sync_trigger for Q8 divider.
@@ -95,12 +95,12 @@
*/
#define Q10_TO_Q11_FANOUT_AND_CLOCK_SYNC_ENABLE_MASK (BIT(0) | BIT(2))
-#define RESET_CTRL 0xc000
+#define RESET_CTRL 0x2010c000
#define SM_RESET 0x0012
#define SM_RESET_V520 0x0013
#define SM_RESET_CMD 0x5A
-#define GENERAL_STATUS 0xc014
+#define GENERAL_STATUS 0x2010c014
#define BOOT_STATUS 0x0000
#define HW_REV_ID 0x000A
#define BOND_ID 0x000B
@@ -115,7 +115,7 @@
#define PRODUCT_ID 0x001e
#define OTP_SCSR_CONFIG_SELECT 0x0022
-#define STATUS 0xc03c
+#define STATUS 0x2010c03c
#define DPLL0_STATUS 0x0018
#define DPLL1_STATUS 0x0019
#define DPLL2_STATUS 0x001a
@@ -138,60 +138,62 @@
#define USER_GPIO0_TO_7_STATUS 0x008a
#define USER_GPIO8_TO_15_STATUS 0x008b
-#define GPIO_USER_CONTROL 0xc160
+#define GPIO_USER_CONTROL 0x2010c160
#define GPIO0_TO_7_OUT 0x0000
#define GPIO8_TO_15_OUT 0x0001
#define GPIO0_TO_7_OUT_V520 0x0002
#define GPIO8_TO_15_OUT_V520 0x0003
-#define STICKY_STATUS_CLEAR 0xc164
-
-#define GPIO_TOD_NOTIFICATION_CLEAR 0xc16c
-
-#define ALERT_CFG 0xc188
-
-#define SYS_DPLL_XO 0xc194
-
-#define SYS_APLL 0xc19c
-
-#define INPUT_0 0xc1b0
-#define INPUT_1 0xc1c0
-#define INPUT_2 0xc1d0
-#define INPUT_3 0xc200
-#define INPUT_4 0xc210
-#define INPUT_5 0xc220
-#define INPUT_6 0xc230
-#define INPUT_7 0xc240
-#define INPUT_8 0xc250
-#define INPUT_9 0xc260
-#define INPUT_10 0xc280
-#define INPUT_11 0xc290
-#define INPUT_12 0xc2a0
-#define INPUT_13 0xc2b0
-#define INPUT_14 0xc2c0
-#define INPUT_15 0xc2d0
-
-#define REF_MON_0 0xc2e0
-#define REF_MON_1 0xc2ec
-#define REF_MON_2 0xc300
-#define REF_MON_3 0xc30c
-#define REF_MON_4 0xc318
-#define REF_MON_5 0xc324
-#define REF_MON_6 0xc330
-#define REF_MON_7 0xc33c
-#define REF_MON_8 0xc348
-#define REF_MON_9 0xc354
-#define REF_MON_10 0xc360
-#define REF_MON_11 0xc36c
-#define REF_MON_12 0xc380
-#define REF_MON_13 0xc38c
-#define REF_MON_14 0xc398
-#define REF_MON_15 0xc3a4
-
-#define DPLL_0 0xc3b0
+#define STICKY_STATUS_CLEAR 0x2010c164
+
+#define GPIO_TOD_NOTIFICATION_CLEAR 0x2010c16c
+
+#define ALERT_CFG 0x2010c188
+
+#define SYS_DPLL_XO 0x2010c194
+
+#define SYS_APLL 0x2010c19c
+
+#define INPUT_0 0x2010c1b0
+#define INPUT_1 0x2010c1c0
+#define INPUT_2 0x2010c1d0
+#define INPUT_3 0x2010c200
+#define INPUT_4 0x2010c210
+#define INPUT_5 0x2010c220
+#define INPUT_6 0x2010c230
+#define INPUT_7 0x2010c240
+#define INPUT_8 0x2010c250
+#define INPUT_9 0x2010c260
+#define INPUT_10 0x2010c280
+#define INPUT_11 0x2010c290
+#define INPUT_12 0x2010c2a0
+#define INPUT_13 0x2010c2b0
+#define INPUT_14 0x2010c2c0
+#define INPUT_15 0x2010c2d0
+
+#define REF_MON_0 0x2010c2e0
+#define REF_MON_1 0x2010c2ec
+#define REF_MON_2 0x2010c300
+#define REF_MON_3 0x2010c30c
+#define REF_MON_4 0x2010c318
+#define REF_MON_5 0x2010c324
+#define REF_MON_6 0x2010c330
+#define REF_MON_7 0x2010c33c
+#define REF_MON_8 0x2010c348
+#define REF_MON_9 0x2010c354
+#define REF_MON_10 0x2010c360
+#define REF_MON_11 0x2010c36c
+#define REF_MON_12 0x2010c380
+#define REF_MON_13 0x2010c38c
+#define REF_MON_14 0x2010c398
+#define REF_MON_15 0x2010c3a4
+
+#define DPLL_0 0x2010c3b0
#define DPLL_CTRL_REG_0 0x0002
#define DPLL_CTRL_REG_1 0x0003
#define DPLL_CTRL_REG_2 0x0004
+#define DPLL_WF_TIMER 0x002c
+#define DPLL_WP_TIMER 0x002e
#define DPLL_TOD_SYNC_CFG 0x0031
#define DPLL_COMBO_SLAVE_CFG_0 0x0032
#define DPLL_COMBO_SLAVE_CFG_1 0x0033
@@ -200,69 +202,69 @@
#define DPLL_PHASE_MEASUREMENT_CFG 0x0036
#define DPLL_MODE 0x0037
#define DPLL_MODE_V520 0x003B
-#define DPLL_1 0xc400
-#define DPLL_2 0xc438
-#define DPLL_2_V520 0xc43c
-#define DPLL_3 0xc480
-#define DPLL_4 0xc4b8
-#define DPLL_4_V520 0xc4bc
-#define DPLL_5 0xc500
-#define DPLL_6 0xc538
-#define DPLL_6_V520 0xc53c
-#define DPLL_7 0xc580
-#define SYS_DPLL 0xc5b8
-#define SYS_DPLL_V520 0xc5bc
-
-#define DPLL_CTRL_0 0xc600
+#define DPLL_1 0x2010c400
+#define DPLL_2 0x2010c438
+#define DPLL_2_V520 0x2010c43c
+#define DPLL_3 0x2010c480
+#define DPLL_4 0x2010c4b8
+#define DPLL_4_V520 0x2010c4bc
+#define DPLL_5 0x2010c500
+#define DPLL_6 0x2010c538
+#define DPLL_6_V520 0x2010c53c
+#define DPLL_7 0x2010c580
+#define SYS_DPLL 0x2010c5b8
+#define SYS_DPLL_V520 0x2010c5bc
+
+#define DPLL_CTRL_0 0x2010c600
#define DPLL_CTRL_DPLL_MANU_REF_CFG 0x0001
#define DPLL_CTRL_DPLL_FOD_FREQ 0x001c
#define DPLL_CTRL_COMBO_MASTER_CFG 0x003a
-#define DPLL_CTRL_1 0xc63c
-#define DPLL_CTRL_2 0xc680
-#define DPLL_CTRL_3 0xc6bc
-#define DPLL_CTRL_4 0xc700
-#define DPLL_CTRL_5 0xc73c
-#define DPLL_CTRL_6 0xc780
-#define DPLL_CTRL_7 0xc7bc
-#define SYS_DPLL_CTRL 0xc800
-
-#define DPLL_PHASE_0 0xc818
+#define DPLL_CTRL_1 0x2010c63c
+#define DPLL_CTRL_2 0x2010c680
+#define DPLL_CTRL_3 0x2010c6bc
+#define DPLL_CTRL_4 0x2010c700
+#define DPLL_CTRL_5 0x2010c73c
+#define DPLL_CTRL_6 0x2010c780
+#define DPLL_CTRL_7 0x2010c7bc
+#define SYS_DPLL_CTRL 0x2010c800
+
+#define DPLL_PHASE_0 0x2010c818
/* Signed 42-bit FFO in units of 2^(-53) */
#define DPLL_WR_PHASE 0x0000
-#define DPLL_PHASE_1 0xc81c
-#define DPLL_PHASE_2 0xc820
-#define DPLL_PHASE_3 0xc824
-#define DPLL_PHASE_4 0xc828
-#define DPLL_PHASE_5 0xc82c
-#define DPLL_PHASE_6 0xc830
-#define DPLL_PHASE_7 0xc834
-
-#define DPLL_FREQ_0 0xc838
+#define DPLL_PHASE_1 0x2010c81c
+#define DPLL_PHASE_2 0x2010c820
+#define DPLL_PHASE_3 0x2010c824
+#define DPLL_PHASE_4 0x2010c828
+#define DPLL_PHASE_5 0x2010c82c
+#define DPLL_PHASE_6 0x2010c830
+#define DPLL_PHASE_7 0x2010c834
+
+#define DPLL_FREQ_0 0x2010c838
/* Signed 42-bit FFO in units of 2^(-53) */
#define DPLL_WR_FREQ 0x0000
-#define DPLL_FREQ_1 0xc840
-#define DPLL_FREQ_2 0xc848
-#define DPLL_FREQ_3 0xc850
-#define DPLL_FREQ_4 0xc858
-#define DPLL_FREQ_5 0xc860
-#define DPLL_FREQ_6 0xc868
-#define DPLL_FREQ_7 0xc870
-
-#define DPLL_PHASE_PULL_IN_0 0xc880
+#define DPLL_FREQ_1 0x2010c840
+#define DPLL_FREQ_2 0x2010c848
+#define DPLL_FREQ_3 0x2010c850
+#define DPLL_FREQ_4 0x2010c858
+#define DPLL_FREQ_5 0x2010c860
+#define DPLL_FREQ_6 0x2010c868
+#define DPLL_FREQ_7 0x2010c870
+
+#define DPLL_PHASE_PULL_IN_0 0x2010c880
#define PULL_IN_OFFSET 0x0000 /* Signed 32 bit */
#define PULL_IN_SLOPE_LIMIT 0x0004 /* Unsigned 24 bit */
#define PULL_IN_CTRL 0x0007
-#define DPLL_PHASE_PULL_IN_1 0xc888
-#define DPLL_PHASE_PULL_IN_2 0xc890
-#define DPLL_PHASE_PULL_IN_3 0xc898
-#define DPLL_PHASE_PULL_IN_4 0xc8a0
-#define DPLL_PHASE_PULL_IN_5 0xc8a8
-#define DPLL_PHASE_PULL_IN_6 0xc8b0
-#define DPLL_PHASE_PULL_IN_7 0xc8b8
-
-#define GPIO_CFG 0xc8c0
+#define DPLL_PHASE_PULL_IN_1 0x2010c888
+#define DPLL_PHASE_PULL_IN_2 0x2010c890
+#define DPLL_PHASE_PULL_IN_3 0x2010c898
+#define DPLL_PHASE_PULL_IN_4 0x2010c8a0
+#define DPLL_PHASE_PULL_IN_5 0x2010c8a8
+#define DPLL_PHASE_PULL_IN_6 0x2010c8b0
+#define DPLL_PHASE_PULL_IN_7 0x2010c8b8
+
+#define GPIO_CFG 0x2010c8c0
#define GPIO_CFG_GBL 0x0000
-#define GPIO_0 0xc8c2
+#define GPIO_0 0x2010c8c2
#define GPIO_DCO_INC_DEC 0x0000
#define GPIO_OUT_CTRL_0 0x0001
#define GPIO_OUT_CTRL_1 0x0002
@@ -281,25 +283,25 @@
#define GPIO_TOD_NOTIFICATION_CFG 0x000f
#define GPIO_CTRL 0x0010
#define GPIO_CTRL_V520 0x0011
-#define GPIO_1 0xc8d4
-#define GPIO_2 0xc8e6
-#define GPIO_3 0xc900
-#define GPIO_4 0xc912
-#define GPIO_5 0xc924
-#define GPIO_6 0xc936
-#define GPIO_7 0xc948
-#define GPIO_8 0xc95a
-#define GPIO_9 0xc980
-#define GPIO_10 0xc992
-#define GPIO_11 0xc9a4
-#define GPIO_12 0xc9b6
-#define GPIO_13 0xc9c8
-#define GPIO_14 0xc9da
-#define GPIO_15 0xca00
-
-#define OUT_DIV_MUX 0xca12
-#define OUTPUT_0 0xca14
-#define OUTPUT_0_V520 0xca20
+#define GPIO_1 0x2010c8d4
+#define GPIO_2 0x2010c8e6
+#define GPIO_3 0x2010c900
+#define GPIO_4 0x2010c912
+#define GPIO_5 0x2010c924
+#define GPIO_6 0x2010c936
+#define GPIO_7 0x2010c948
+#define GPIO_8 0x2010c95a
+#define GPIO_9 0x2010c980
+#define GPIO_10 0x2010c992
+#define GPIO_11 0x2010c9a4
+#define GPIO_12 0x2010c9b6
+#define GPIO_13 0x2010c9c8
+#define GPIO_14 0x2010c9da
+#define GPIO_15 0x2010ca00
+
+#define OUT_DIV_MUX 0x2010ca12
+#define OUTPUT_0 0x2010ca14
+#define OUTPUT_0_V520 0x2010ca20
/* FOD frequency output divider value */
#define OUT_DIV 0x0000
#define OUT_DUTY_CYCLE_HIGH 0x0004
@@ -307,88 +309,88 @@
#define OUT_CTRL_1 0x0009
/* Phase adjustment in FOD cycles */
#define OUT_PHASE_ADJ 0x000c
-#define OUTPUT_1 0xca24
-#define OUTPUT_1_V520 0xca30
-#define OUTPUT_2 0xca34
-#define OUTPUT_2_V520 0xca40
-#define OUTPUT_3 0xca44
-#define OUTPUT_3_V520 0xca50
-#define OUTPUT_4 0xca54
-#define OUTPUT_4_V520 0xca60
-#define OUTPUT_5 0xca64
-#define OUTPUT_5_V520 0xca80
-#define OUTPUT_6 0xca80
-#define OUTPUT_6_V520 0xca90
-#define OUTPUT_7 0xca90
-#define OUTPUT_7_V520 0xcaa0
-#define OUTPUT_8 0xcaa0
-#define OUTPUT_8_V520 0xcab0
-#define OUTPUT_9 0xcab0
-#define OUTPUT_9_V520 0xcac0
-#define OUTPUT_10 0xcac0
-#define OUTPUT_10_V520 0xcad0
-#define OUTPUT_11 0xcad0
-#define OUTPUT_11_V520 0xcae0
-
-#define SERIAL 0xcae0
-#define SERIAL_V520 0xcaf0
-
-#define PWM_ENCODER_0 0xcb00
-#define PWM_ENCODER_1 0xcb08
-#define PWM_ENCODER_2 0xcb10
-#define PWM_ENCODER_3 0xcb18
-#define PWM_ENCODER_4 0xcb20
-#define PWM_ENCODER_5 0xcb28
-#define PWM_ENCODER_6 0xcb30
-#define PWM_ENCODER_7 0xcb38
-#define PWM_DECODER_0 0xcb40
-#define PWM_DECODER_1 0xcb48
-#define PWM_DECODER_1_V520 0xcb4a
-#define PWM_DECODER_2 0xcb50
-#define PWM_DECODER_2_V520 0xcb54
-#define PWM_DECODER_3 0xcb58
-#define PWM_DECODER_3_V520 0xcb5e
-#define PWM_DECODER_4 0xcb60
-#define PWM_DECODER_4_V520 0xcb68
-#define PWM_DECODER_5 0xcb68
-#define PWM_DECODER_5_V520 0xcb80
-#define PWM_DECODER_6 0xcb70
-#define PWM_DECODER_6_V520 0xcb8a
-#define PWM_DECODER_7 0xcb80
-#define PWM_DECODER_7_V520 0xcb94
-#define PWM_DECODER_8 0xcb88
-#define PWM_DECODER_8_V520 0xcb9e
-#define PWM_DECODER_9 0xcb90
-#define PWM_DECODER_9_V520 0xcba8
-#define PWM_DECODER_10 0xcb98
-#define PWM_DECODER_10_V520 0xcbb2
-#define PWM_DECODER_11 0xcba0
-#define PWM_DECODER_11_V520 0xcbbc
-#define PWM_DECODER_12 0xcba8
-#define PWM_DECODER_12_V520 0xcbc6
-#define PWM_DECODER_13 0xcbb0
-#define PWM_DECODER_13_V520 0xcbd0
-#define PWM_DECODER_14 0xcbb8
-#define PWM_DECODER_14_V520 0xcbda
-#define PWM_DECODER_15 0xcbc0
-#define PWM_DECODER_15_V520 0xcbe4
-#define PWM_USER_DATA 0xcbc8
-#define PWM_USER_DATA_V520 0xcbf0
-
-#define TOD_0 0xcbcc
-#define TOD_0_V520 0xcc00
+#define OUTPUT_1 0x2010ca24
+#define OUTPUT_1_V520 0x2010ca30
+#define OUTPUT_2 0x2010ca34
+#define OUTPUT_2_V520 0x2010ca40
+#define OUTPUT_3 0x2010ca44
+#define OUTPUT_3_V520 0x2010ca50
+#define OUTPUT_4 0x2010ca54
+#define OUTPUT_4_V520 0x2010ca60
+#define OUTPUT_5 0x2010ca64
+#define OUTPUT_5_V520 0x2010ca80
+#define OUTPUT_6 0x2010ca80
+#define OUTPUT_6_V520 0x2010ca90
+#define OUTPUT_7 0x2010ca90
+#define OUTPUT_7_V520 0x2010caa0
+#define OUTPUT_8 0x2010caa0
+#define OUTPUT_8_V520 0x2010cab0
+#define OUTPUT_9 0x2010cab0
+#define OUTPUT_9_V520 0x2010cac0
+#define OUTPUT_10 0x2010cac0
+#define OUTPUT_10_V520 0x2010cad0
+#define OUTPUT_11 0x2010cad0
+#define OUTPUT_11_V520 0x2010cae0
+
+#define SERIAL 0x2010cae0
+#define SERIAL_V520 0x2010caf0
+
+#define PWM_ENCODER_0 0x2010cb00
+#define PWM_ENCODER_1 0x2010cb08
+#define PWM_ENCODER_2 0x2010cb10
+#define PWM_ENCODER_3 0x2010cb18
+#define PWM_ENCODER_4 0x2010cb20
+#define PWM_ENCODER_5 0x2010cb28
+#define PWM_ENCODER_6 0x2010cb30
+#define PWM_ENCODER_7 0x2010cb38
+#define PWM_DECODER_0 0x2010cb40
+#define PWM_DECODER_1 0x2010cb48
+#define PWM_DECODER_1_V520 0x2010cb4a
+#define PWM_DECODER_2 0x2010cb50
+#define PWM_DECODER_2_V520 0x2010cb54
+#define PWM_DECODER_3 0x2010cb58
+#define PWM_DECODER_3_V520 0x2010cb5e
+#define PWM_DECODER_4 0x2010cb60
+#define PWM_DECODER_4_V520 0x2010cb68
+#define PWM_DECODER_5 0x2010cb68
+#define PWM_DECODER_5_V520 0x2010cb80
+#define PWM_DECODER_6 0x2010cb70
+#define PWM_DECODER_6_V520 0x2010cb8a
+#define PWM_DECODER_7 0x2010cb80
+#define PWM_DECODER_7_V520 0x2010cb94
+#define PWM_DECODER_8 0x2010cb88
+#define PWM_DECODER_8_V520 0x2010cb9e
+#define PWM_DECODER_9 0x2010cb90
+#define PWM_DECODER_9_V520 0x2010cba8
+#define PWM_DECODER_10 0x2010cb98
+#define PWM_DECODER_10_V520 0x2010cbb2
+#define PWM_DECODER_11 0x2010cba0
+#define PWM_DECODER_11_V520 0x2010cbbc
+#define PWM_DECODER_12 0x2010cba8
+#define PWM_DECODER_12_V520 0x2010cbc6
+#define PWM_DECODER_13 0x2010cbb0
+#define PWM_DECODER_13_V520 0x2010cbd0
+#define PWM_DECODER_14 0x2010cbb8
+#define PWM_DECODER_14_V520 0x2010cbda
+#define PWM_DECODER_15 0x2010cbc0
+#define PWM_DECODER_15_V520 0x2010cbe4
+#define PWM_USER_DATA 0x2010cbc8
+#define PWM_USER_DATA_V520 0x2010cbf0
+
+#define TOD_0 0x2010cbcc
+#define TOD_0_V520 0x2010cc00
/* Enable TOD counter, output channel sync and even-PPS mode */
#define TOD_CFG 0x0000
#define TOD_CFG_V520 0x0001
-#define TOD_1 0xcbce
-#define TOD_1_V520 0xcc02
-#define TOD_2 0xcbd0
-#define TOD_2_V520 0xcc04
-#define TOD_3 0xcbd2
-#define TOD_3_V520 0xcc06
-
-#define TOD_WRITE_0 0xcc00
-#define TOD_WRITE_0_V520 0xcc10
+#define TOD_1 0x2010cbce
+#define TOD_1_V520 0x2010cc02
+#define TOD_2 0x2010cbd0
+#define TOD_2_V520 0x2010cc04
+#define TOD_3 0x2010cbd2
+#define TOD_3_V520 0x2010cc06
+
+#define TOD_WRITE_0 0x2010cc00
+#define TOD_WRITE_0_V520 0x2010cc10
/* 8-bit subns, 32-bit ns, 48-bit seconds */
#define TOD_WRITE 0x0000
/* Counter increments after TOD write is completed */
@@ -397,15 +399,15 @@
#define TOD_WRITE_SELECT_CFG_0 0x000d
/* TOD write trigger selection */
#define TOD_WRITE_CMD 0x000f
-#define TOD_WRITE_1 0xcc10
-#define TOD_WRITE_1_V520 0xcc20
-#define TOD_WRITE_2 0xcc20
-#define TOD_WRITE_2_V520 0xcc30
-#define TOD_WRITE_3 0xcc30
-#define TOD_WRITE_3_V520 0xcc40
-
-#define TOD_READ_PRIMARY_0 0xcc40
-#define TOD_READ_PRIMARY_0_V520 0xcc50
+#define TOD_WRITE_1 0x2010cc10
+#define TOD_WRITE_1_V520 0x2010cc20
+#define TOD_WRITE_2 0x2010cc20
+#define TOD_WRITE_2_V520 0x2010cc30
+#define TOD_WRITE_3 0x2010cc30
+#define TOD_WRITE_3_V520 0x2010cc40
+
+#define TOD_READ_PRIMARY_0 0x2010cc40
+#define TOD_READ_PRIMARY_0_V520 0x2010cc50
/* 8-bit subns, 32-bit ns, 48-bit seconds */
#define TOD_READ_PRIMARY_BASE 0x0000
/* Counter increments after TOD write is completed */
@@ -415,15 +417,15 @@
/* Read trigger selection */
#define TOD_READ_PRIMARY_CMD 0x000e
#define TOD_READ_PRIMARY_CMD_V520 0x000f
-#define TOD_READ_PRIMARY_1 0xcc50
-#define TOD_READ_PRIMARY_1_V520 0xcc60
-#define TOD_READ_PRIMARY_2 0xcc60
-#define TOD_READ_PRIMARY_2_V520 0xcc80
-#define TOD_READ_PRIMARY_3 0xcc80
-#define TOD_READ_PRIMARY_3_V520 0xcc90
-
-#define TOD_READ_SECONDARY_0 0xcc90
-#define TOD_READ_SECONDARY_0_V520 0xcca0
+#define TOD_READ_PRIMARY_1 0x2010cc50
+#define TOD_READ_PRIMARY_1_V520 0x2010cc60
+#define TOD_READ_PRIMARY_2 0x2010cc60
+#define TOD_READ_PRIMARY_2_V520 0x2010cc80
+#define TOD_READ_PRIMARY_3 0x2010cc80
+#define TOD_READ_PRIMARY_3_V520 0x2010cc90
+
+#define TOD_READ_SECONDARY_0 0x2010cc90
+#define TOD_READ_SECONDARY_0_V520 0x2010cca0
/* 8-bit subns, 32-bit ns, 48-bit seconds */
#define TOD_READ_SECONDARY_BASE 0x0000
/* Counter increments after TOD write is completed */
@@ -434,30 +436,30 @@
#define TOD_READ_SECONDARY_CMD 0x000e
#define TOD_READ_SECONDARY_CMD_V520 0x000f
-#define TOD_READ_SECONDARY_1 0xcca0
-#define TOD_READ_SECONDARY_1_V520 0xccb0
-#define TOD_READ_SECONDARY_2 0xccb0
-#define TOD_READ_SECONDARY_2_V520 0xccc0
-#define TOD_READ_SECONDARY_3 0xccc0
-#define TOD_READ_SECONDARY_3_V520 0xccd0
+#define TOD_READ_SECONDARY_1 0x2010cca0
+#define TOD_READ_SECONDARY_1_V520 0x2010ccb0
+#define TOD_READ_SECONDARY_2 0x2010ccb0
+#define TOD_READ_SECONDARY_2_V520 0x2010ccc0
+#define TOD_READ_SECONDARY_3 0x2010ccc0
+#define TOD_READ_SECONDARY_3_V520 0x2010ccd0
-#define OUTPUT_TDC_CFG 0xccd0
-#define OUTPUT_TDC_CFG_V520 0xcce0
-#define OUTPUT_TDC_0 0xcd00
-#define OUTPUT_TDC_1 0xcd08
-#define OUTPUT_TDC_2 0xcd10
-#define OUTPUT_TDC_3 0xcd18
-#define INPUT_TDC 0xcd20
+#define OUTPUT_TDC_CFG 0x2010ccd0
+#define OUTPUT_TDC_CFG_V520 0x2010cce0
+#define OUTPUT_TDC_0 0x2010cd00
+#define OUTPUT_TDC_1 0x2010cd08
+#define OUTPUT_TDC_2 0x2010cd10
+#define OUTPUT_TDC_3 0x2010cd18
+#define INPUT_TDC 0x2010cd20
-#define SCRATCH 0xcf50
-#define SCRATCH_V520 0xcf4c
+#define SCRATCH 0x2010cf50
+#define SCRATCH_V520 0x2010cf4c
-#define EEPROM 0xcf68
-#define EEPROM_V520 0xcf64
+#define EEPROM 0x2010cf68
+#define EEPROM_V520 0x2010cf64
-#define OTP 0xcf70
+#define OTP 0x2010cf70
-#define BYTE 0xcf80
+#define BYTE 0x2010cf80
/* Bit definitions for the MAJ_REL register */
#define MAJOR_SHIFT (1)
@@ -665,6 +667,16 @@
#define DPLL_STATE_MASK (0xf)
#define DPLL_STATE_SHIFT (0x0)
+/*
+ * Return register address based on passed in firmware version
+ */
+#define IDTCM_FW_REG(FW, VER, REG) (((FW) < (VER)) ? (REG) : (REG##_##VER))
+enum fw_version {
+ V_DEFAULT = 0,
+ V487 = 1,
+ V520 = 2,
+};
+
/* Values of DPLL_N.DPLL_MODE.PLL_MODE */
enum pll_mode {
PLL_MODE_MIN = 0,
--
2.39.2
On Wed, Nov 15, 2023 at 10:10:53AM -0500, Min Li wrote:
> From: Min Li <[email protected]>
>
> We used to assume 0x2010xxxx address. Now that
> we need to access 0x2011xxxx address, we need
> to support read/write the whole 32-bit address space.
Hi Min Li,
I think it would be appropriate to include a patch in this series
that makes use of 0x2011xxxx addresses.
> Signed-off-by: Min Li <[email protected]>
> ---
> - Drop MAX_ABS_WRITE_PHASE_PICOSECONDS advised by Rahul
> - Apply SCSR_ADDR to scrach register in idtcm_load_firmware advised by Simon
> - Apply u32 to base in idtcm_output_enable advised by Simon
> - Correct sync_ctrl0/1 parameter position for idtcm_write advised by Simon
Thanks for the updates.
> drivers/ptp/ptp_clockmatrix.c | 71 ++--
> drivers/ptp/ptp_clockmatrix.h | 32 +-
> include/linux/mfd/idt8a340_reg.h | 542 ++++++++++++++++---------------
> 3 files changed, 331 insertions(+), 314 deletions(-)
>
> diff --git a/drivers/ptp/ptp_clockmatrix.c b/drivers/ptp/ptp_clockmatrix.c
> index f6f9d4adce04..1d5da77502e6 100644
> --- a/drivers/ptp/ptp_clockmatrix.c
> +++ b/drivers/ptp/ptp_clockmatrix.c
> @@ -41,7 +41,7 @@ module_param(firmware, charp, 0);
> static int _idtcm_adjfine(struct idtcm_channel *channel, long scaled_ppm);
>
> static inline int idtcm_read(struct idtcm *idtcm,
> - u16 module,
> + u32 module,
> u16 regaddr,
> u8 *buf,
> u16 count)
...
> @@ -570,27 +571,27 @@ static int _sync_pll_output(struct idtcm *idtcm,
> if (qn_plus_1)
> val |= SYNCTRL1_Q1_DIV_SYNC_TRIG;
>
> - err = idtcm_write(idtcm, 0, sync_ctrl1, &val, sizeof(val));
> + err = idtcm_write(idtcm, sync_ctrl1, 0, &val, sizeof(val));
> if (err)
> return err;
>
> /* PLL5 can have OUT8 as second additional output. */
> if (pll == 5 && qn_plus_1 != 0) {
> - err = idtcm_read(idtcm, 0, HW_Q8_CTRL_SPARE,
> + err = idtcm_read(idtcm, HW_Q8_CTRL_SPARE, 0,
> &temp, sizeof(temp));
I feel that I am missing something obvious, but I have a question which I
would like to ask by way of an example.
Both before and after this patch idtcm_read() looks like this:
static inline int idtcm_read(struct idtcm *idtcm,
u16 module,
u16 regaddr,
u8 *buf,
u16 count) {
return regmap_bulk_read(idtcm->regmap, module + regaddr, buf, count);
}
And so before this patch the above call to idtcm_read() ends up as
a call to regmap_bulk_read:
regmap_bulk_read(idtcm->regmap, 0 + 0xa7d4, buf, count);
In particular, the 2nd argument is 0 + 0xa7d4 = 0xa7d4.
But after this patch the call to idtcm_read() becomes:
regmap_bulk_read(idtcm->regmap, 0x2010a7d4 + 0, buf, count);
In particular, the 2nd argument is now 0x2010a7d4 + 0 = 0x2010a7d4.
My question is, how does this patch take into account the
change in this value from 0xa7d4 to 0x2010a7d4?
Or to the point, does the call to regmap_bulk_read() still
work with the new value?
>
> I feel that I am missing something obvious, but I have a question which I
> would like to ask by way of an example.
>
> Both before and after this patch idtcm_read() looks like this:
>
> static inline int idtcm_read(struct idtcm *idtcm,
> u16 module,
> u16 regaddr,
> u8 *buf,
> u16 count) {
> return regmap_bulk_read(idtcm->regmap, module + regaddr, buf,
> count); }
>
> And so before this patch the above call to idtcm_read() ends up as a call to
> regmap_bulk_read:
>
> regmap_bulk_read(idtcm->regmap, 0 + 0xa7d4, buf, count);
>
> In particular, the 2nd argument is 0 + 0xa7d4 = 0xa7d4.
>
> But after this patch the call to idtcm_read() becomes:
>
> regmap_bulk_read(idtcm->regmap, 0x2010a7d4 + 0, buf, count);
>
> In particular, the 2nd argument is now 0x2010a7d4 + 0 = 0x2010a7d4.
>
> My question is, how does this patch take into account the change in this
> value from 0xa7d4 to 0x2010a7d4?
>
> Or to the point, does the call to regmap_bulk_read() still work with the new
> value?
Hi Simon:
The regmap_bulk_read side of change is handled by the following patch. Basically
Clockmatrix has 4 bytes of offset registers and rsmu_i2c driver used to assume
0x2010 as part of the offset and only take the lower 2 byte offset from regmap_bulk_read.
After the change, rsmu_i2c will take the full 4 byte offset from regmap_bulk_read
https://lore.kernel.org/lkml/MW5PR03MB693295AF31ABCAF6AE52EE74A08B9@MW5PR03MB6932.namprd03.prod.outlook.com/T/
On Wed, 15 Nov, 2023 10:10:53 -0500 Min Li <[email protected]> wrote:
> From: Min Li <[email protected]>
>
> We used to assume 0x2010xxxx address. Now that
> we need to access 0x2011xxxx address, we need
> to support read/write the whole 32-bit address space.
>
> Signed-off-by: Min Li <[email protected]>
> ---
> - Drop MAX_ABS_WRITE_PHASE_PICOSECONDS advised by Rahul
> - Apply SCSR_ADDR to scrach register in idtcm_load_firmware advised by Simon
> - Apply u32 to base in idtcm_output_enable advised by Simon
> - Correct sync_ctrl0/1 parameter position for idtcm_write advised by Simon
>
> drivers/ptp/ptp_clockmatrix.c | 71 ++--
> drivers/ptp/ptp_clockmatrix.h | 32 +-
> include/linux/mfd/idt8a340_reg.h | 542 ++++++++++++++++---------------
> 3 files changed, 331 insertions(+), 314 deletions(-)
>
> diff --git a/drivers/ptp/ptp_clockmatrix.c b/drivers/ptp/ptp_clockmatrix.c
> index f6f9d4adce04..1d5da77502e6 100644
> --- a/drivers/ptp/ptp_clockmatrix.c
> +++ b/drivers/ptp/ptp_clockmatrix.c
<snip>
> @@ -1705,7 +1720,7 @@ static s32 idtcm_getmaxphase(struct ptp_clock_info *ptp __always_unused)
> }
>
> /*
> - * Internal function for implementing support for write phase offset
> + * Maximum absolute value for write phase offset in picoseconds
This documentation comment is wrong (this is meant for
idtcm_getmaxphase). I think you might be generating patches without
rebasing on the latest net-next tree?
> *
> * @channel: channel
> * @delta_ns: delta in nanoseconds
> @@ -1717,6 +1732,7 @@ static int _idtcm_adjphase(struct idtcm_channel *channel, s32 delta_ns)
> u8 i;
> u8 buf[4] = {0};
> s32 phase_50ps;
> + s64 offset_ps;
>
> if (channel->mode != PTP_PLL_MODE_WRITE_PHASE) {
> err = channel->configure_write_phase(channel);
> @@ -1724,7 +1740,8 @@ static int _idtcm_adjphase(struct idtcm_channel *channel, s32 delta_ns)
> return err;
> }
>
> - phase_50ps = div_s64((s64)delta_ns * 1000, 50);
> + offset_ps = (s64)delta_ns * 1000;
> + phase_50ps = div_s64(offset_ps, 50);
Sorry, I am not sure what this change has to do with 32-bit address
space support. Seems like this was introduced due to not rebasing
properly on top of latest changes?
>
> for (i = 0; i < 4; i++) {
> buf[i] = phase_50ps & 0xff;
<snip>
--
Thanks,
Rahul Rameshbabu