2016-10-13 11:43:03

by Prameela Rani Garnepudi

[permalink] [raw]
Subject: [PATCH 3/3] rsi: Updated boot parameters

* Switch clock info is divided in to different clock information fields for
readability and synchronization with firmware code.
* Other parameters are added for future use and to make the frame size in sync
with latest firmware. Otherwise firmware will discard the frame considering
corrupted frame.

Signed-off-by: Prameela Rani Garnepudi <[email protected]>
---
drivers/net/wireless/rsi/rsi_91x_mgmt.c | 62 ++++++++++++++++++++++++++----
drivers/net/wireless/rsi/rsi_boot_params.h | 45 +++++++++++++++++++++-
2 files changed, 97 insertions(+), 10 deletions(-)

diff --git a/drivers/net/wireless/rsi/rsi_91x_mgmt.c b/drivers/net/wireless/rsi/rsi_91x_mgmt.c
index 30b9d44..10796c2 100644
--- a/drivers/net/wireless/rsi/rsi_91x_mgmt.c
+++ b/drivers/net/wireless/rsi/rsi_91x_mgmt.c
@@ -18,6 +18,7 @@
#include "rsi_mgmt.h"
#include "rsi_common.h"

+/* Bootup Parameters for 20MHz */
static struct bootup_params boot_params_20 = {
.magic_number = cpu_to_le16(0x5aa5),
.crystal_good_time = 0x0,
@@ -28,6 +29,7 @@ static struct bootup_params boot_params_20 = {
.rtls_timestamp_en = 0x0,
.host_spi_intr_cfg = 0x0,
.device_clk_info = {{
+ /* WLAN params */
.pll_config_g = {
.tapll_info_g = {
.pll_reg_1 = cpu_to_le16((TA_PLL_N_VAL_20 << 8)|
@@ -45,12 +47,18 @@ static struct bootup_params boot_params_20 = {
}
},
.switch_clk_g = {
- .switch_clk_info = cpu_to_le16(BIT(3)),
+ .switch_umac_clk = 0x0,
+ .switch_qspi_clk = 0x0,
+ .switch_slp_clk_2_32 = 0x0,
+ .switch_bbp_lmac_clk_reg = 0x1,
+ .switch_mem_ctrl_cfg = 0x0,
+ .reserved = 0x0,
.bbp_lmac_clk_reg_val = cpu_to_le16(0x121),
.umac_clock_reg_config = 0x0,
.qspi_uart_clock_reg_config = 0x0
}
},
+ /* Bluetooth params */
{
.pll_config_g = {
.tapll_info_g = {
@@ -69,12 +77,18 @@ static struct bootup_params boot_params_20 = {
}
},
.switch_clk_g = {
- .switch_clk_info = 0x0,
+ .switch_umac_clk = 0x0,
+ .switch_qspi_clk = 0x0,
+ .switch_slp_clk_2_32 = 0x0,
+ .switch_bbp_lmac_clk_reg = 0x0,
+ .switch_mem_ctrl_cfg = 0x0,
+ .reserved = 0x0,
.bbp_lmac_clk_reg_val = 0x0,
.umac_clock_reg_config = 0x0,
.qspi_uart_clock_reg_config = 0x0
}
},
+ /* Zigbee params */
{
.pll_config_g = {
.tapll_info_g = {
@@ -93,12 +107,18 @@ static struct bootup_params boot_params_20 = {
}
},
.switch_clk_g = {
- .switch_clk_info = 0x0,
+ .switch_umac_clk = 0x0,
+ .switch_qspi_clk = 0x0,
+ .switch_slp_clk_2_32 = 0x0,
+ .switch_bbp_lmac_clk_reg = 0x0,
+ .switch_mem_ctrl_cfg = 0x0,
+ .reserved = 0x0,
.bbp_lmac_clk_reg_val = 0x0,
.umac_clock_reg_config = 0x0,
.qspi_uart_clock_reg_config = 0x0
}
} },
+ /* ULP Params */
.buckboost_wakeup_cnt = 0x0,
.pmu_wakeup_wait = 0x0,
.shutdown_wait_time = 0x0,
@@ -106,9 +126,13 @@ static struct bootup_params boot_params_20 = {
.wdt_prog_value = 0x0,
.wdt_soc_rst_delay = 0x0,
.dcdc_operation_mode = 0x0,
- .soc_reset_wait_cnt = 0x0
+ .soc_reset_wait_cnt = 0x0,
+ .waiting_time_at_fresh_sleep = 0x0,
+ .max_threshold_to_avoid_sleep = 0x0,
+ .beacon_resedue_alg_en = 0,
};

+/* Bootup parameters for 40MHz */
static struct bootup_params boot_params_40 = {
.magic_number = cpu_to_le16(0x5aa5),
.crystal_good_time = 0x0,
@@ -119,6 +143,7 @@ static struct bootup_params boot_params_40 = {
.rtls_timestamp_en = 0x0,
.host_spi_intr_cfg = 0x0,
.device_clk_info = {{
+ /* WLAN params */
.pll_config_g = {
.tapll_info_g = {
.pll_reg_1 = cpu_to_le16((TA_PLL_N_VAL_40 << 8)|
@@ -136,12 +161,18 @@ static struct bootup_params boot_params_40 = {
}
},
.switch_clk_g = {
- .switch_clk_info = cpu_to_le16(0x09),
+ .switch_umac_clk = 0x1,
+ .switch_qspi_clk = 0x0,
+ .switch_slp_clk_2_32 = 0x0,
+ .switch_bbp_lmac_clk_reg = 0x1,
+ .switch_mem_ctrl_cfg = 0x0,
+ .reserved = 0x0,
.bbp_lmac_clk_reg_val = cpu_to_le16(0x1121),
.umac_clock_reg_config = cpu_to_le16(0x48),
.qspi_uart_clock_reg_config = 0x0
}
},
+ /* Bluetooth Params */
{
.pll_config_g = {
.tapll_info_g = {
@@ -160,12 +191,18 @@ static struct bootup_params boot_params_40 = {
}
},
.switch_clk_g = {
- .switch_clk_info = 0x0,
+ .switch_umac_clk = 0x0,
+ .switch_qspi_clk = 0x0,
+ .switch_slp_clk_2_32 = 0x0,
+ .switch_bbp_lmac_clk_reg = 0x0,
+ .switch_mem_ctrl_cfg = 0x0,
+ .reserved = 0x0,
.bbp_lmac_clk_reg_val = 0x0,
.umac_clock_reg_config = 0x0,
.qspi_uart_clock_reg_config = 0x0
}
},
+ /* Zigbee Params */
{
.pll_config_g = {
.tapll_info_g = {
@@ -184,12 +221,18 @@ static struct bootup_params boot_params_40 = {
}
},
.switch_clk_g = {
- .switch_clk_info = 0x0,
+ .switch_umac_clk = 0x0,
+ .switch_qspi_clk = 0x0,
+ .switch_slp_clk_2_32 = 0x0,
+ .switch_bbp_lmac_clk_reg = 0x0,
+ .switch_mem_ctrl_cfg = 0x0,
+ .reserved = 0x0,
.bbp_lmac_clk_reg_val = 0x0,
.umac_clock_reg_config = 0x0,
.qspi_uart_clock_reg_config = 0x0
}
} },
+ /* ULP Params */
.buckboost_wakeup_cnt = 0x0,
.pmu_wakeup_wait = 0x0,
.shutdown_wait_time = 0x0,
@@ -197,7 +240,10 @@ static struct bootup_params boot_params_40 = {
.wdt_prog_value = 0x0,
.wdt_soc_rst_delay = 0x0,
.dcdc_operation_mode = 0x0,
- .soc_reset_wait_cnt = 0x0
+ .soc_reset_wait_cnt = 0x0,
+ .waiting_time_at_fresh_sleep = 0x0,
+ .max_threshold_to_avoid_sleep = 0x0,
+ .beacon_resedue_alg_en = 0,
};

static u16 mcs[] = {13, 26, 39, 52, 78, 104, 117, 130};
diff --git a/drivers/net/wireless/rsi/rsi_boot_params.h b/drivers/net/wireless/rsi/rsi_boot_params.h
index 5e2721f..c1be104 100644
--- a/drivers/net/wireless/rsi/rsi_boot_params.h
+++ b/drivers/net/wireless/rsi/rsi_boot_params.h
@@ -81,7 +81,13 @@ struct pll_config {

/* structure to store configs related to UMAC clk programming */
struct switch_clk {
- __le16 switch_clk_info;
+ __le16 switch_umac_clk : 1; /* If set rest is valid */
+ __le16 switch_qspi_clk : 1; /* If set qspi clk will be changed */
+ __le16 switch_slp_clk_2_32 : 1;
+ __le16 switch_bbp_lmac_clk_reg : 1;
+ __le16 switch_mem_ctrl_cfg : 1;
+ __le16 reserved : 11;
+
/* If switch_bbp_lmac_clk_reg is set then this value will be programmed
* into reg
*/
@@ -99,11 +105,43 @@ struct device_clk_info {

struct bootup_params {
__le16 magic_number;
+#define LOADED_TOKEN 0x5AA5 /* Bootup params are installed by host
+ * or OTP/FLASH (Bootloader)
+ */
+#define ROM_TOKEN 0x55AA /* Bootup params are taken from ROM
+ * itself in MCU mode.
+ */
__le16 crystal_good_time;
__le32 valid;
+#define CRYSTAL_GOOD_TIME BIT(0)
+#define BOOTUP_MODE_INFO BIT(1)
+#define DIGITAL_LOOP_BACK_PARAMS BIT(2)
+#define RTLS_TIMESTAMP_EN BIT(3)
+#define HOST_SPI_INTR_CFG BIT(4)
+#define WIFI_TAPLL_CONFIGS BIT(5)
+#define WIFI_PLL960_CONFIGS BIT(6)
+#define WIFI_AFEPLL_CONFIGS BIT(7)
+#define WIFI_SWITCH_CLK_CONFIGS BIT(8)
+#define BT_TAPLL_CONFIGS BIT(9)
+#define BT_PLL960_CONFIGS BIT(10)
+#define BT_AFEPLL_CONFIGS BIT(11)
+#define BT_SWITCH_CLK_CONFIGS BIT(12)
+#define ZB_TAPLL_CONFIGS BIT(13)
+#define ZB_PLL960_CONFIGS BIT(14)
+#define ZB_AFEPLL_CONFIGS BIT(15)
+#define ZB_SWITCH_CLK_CONFIGS BIT(16)
+#define BUCKBOOST_WAIT_INFO BIT(17)
+#define PMU_WAKEUP_SHUTDOWN_W BIT(18)
+#define WDT_PROG_VALUES BIT(19)
+#define WDT_RESET_DELAY_VALUE BIT(20)
+#define DCDC_OPERATION_MODE_VALID BIT(21)
+#define PMU_SLP_CLKOUT_SEL BIT(22)
+#define SOC_RESET_WAIT_CNT BIT(23)
__le32 reserved_for_valids;
__le16 bootup_mode_info;
- /* configuration used for digital loop back */
+#define BT_COEXIST BIT(0)
+#define BOOTUP_MODE (BIT(2) | BIT(1))
+#define CUR_DEV_MODE (bootup_params.bootup_mode_info >> 1)
__le16 digital_loop_back_params;
__le16 rtls_timestamp_en;
__le16 host_spi_intr_cfg;
@@ -122,5 +160,8 @@ struct bootup_params {
/* dcdc modes configs */
__le32 dcdc_operation_mode;
__le32 soc_reset_wait_cnt;
+ __le32 waiting_time_at_fresh_sleep;
+ __le32 max_threshold_to_avoid_sleep;
+ u8 beacon_resedue_alg_en;
} __packed;
#endif
--
2.4.11


2016-10-13 12:45:43

by Kalle Valo

[permalink] [raw]
Subject: Re: [PATCH 3/3] rsi: Updated boot parameters

Prameela Rani Garnepudi <[email protected]> writes:

> * Switch clock info is divided in to different clock information fields for
> readability and synchronization with firmware code.
> * Other parameters are added for future use and to make the frame size in sync
> with latest firmware. Otherwise firmware will discard the frame considering
> corrupted frame.
>
> Signed-off-by: Prameela Rani Garnepudi <[email protected]>

Thanks, this is much easier to review now that the style changes are gone.

> /* structure to store configs related to UMAC clk programming */
> struct switch_clk {
> - __le16 switch_clk_info;
> + __le16 switch_umac_clk : 1; /* If set rest is valid */
> + __le16 switch_qspi_clk : 1; /* If set qspi clk will be changed */
> + __le16 switch_slp_clk_2_32 : 1;
> + __le16 switch_bbp_lmac_clk_reg : 1;
> + __le16 switch_mem_ctrl_cfg : 1;
> + __le16 reserved : 11;

This immediately caugh my eye. Are you sure this works on big endian
machines? I have never seen __le16 mixed with bitfields so I'm skeptical
that this will even work, but I don't have time to really check. Anyone
else know?

Anyway, the original code used the preferred format:

- .switch_clk_info = cpu_to_le16(BIT(3)),

That is use BIT() or GENMASK()/FIELD_PREP() to create the bitmask in cpu
native format and then convert it with cpu_to_le*() family of functions.

--
Kalle Valo

2016-11-09 01:08:10

by Kalle Valo

[permalink] [raw]
Subject: Re: [3/3] rsi: Updated boot parameters

Prameela Rani Garnepudi <[email protected]> wrote:
> * Switch clock info is divided in to different clock information fields for
> readability and synchronization with firmware code.
> * Other parameters are added for future use and to make the frame size in sync
> with latest firmware. Otherwise firmware will discard the frame considering
> corrupted frame.
>
> Signed-off-by: Prameela Rani Garnepudi <[email protected]>

This looks broken and no reply to my comment.

Patch set to Changes Requested.

--
https://patchwork.kernel.org/patch/9374883/

Documentation about submitting wireless patches and checking status
from patchwork:

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches