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0011-net-switchlib-add-driver-for-Lantiq-ADM6996I-switch-.patch

0011-net-switchlib-add-driver-for-Lantiq-ADM6996I-switch-.patch 4.4 KB
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  1. From c291443dc97dadcf0c6afd04688a7d9f79a221b5 Mon Sep 17 00:00:00 2001
    2. 

  2. From: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
    3. 

  3. Date: Wed, 29 Aug 2012 22:08:16 +0200
    4. 

  4. Subject: net: switchlib: add driver for Lantiq ADM6996I switch family
    5. 

  5. 

  6. Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
    7. 

  7. 

  8. --- a/drivers/net/switch/Makefile
    9. 

  9. +++ b/drivers/net/switch/Makefile
    10. 

  10. @@ -11,6 +11,7 @@ LIB	:= $(obj)libswitch.o
    11. 

  11.  
    12. 

  12.  COBJS-$(CONFIG_SWITCH_MULTI) += switch.o
    13. 

  13.  COBJS-$(CONFIG_SWITCH_PSB697X) += psb697x.o
    14. 

  14. +COBJS-$(CONFIG_SWITCH_ADM6996I) += adm6996i.o
    15. 

  15.  
    16. 

  16.  COBJS	:= $(COBJS-y)
    17. 

  17.  SRCS	:= $(COBJS:.o=.c)
    18. 

  18. --- /dev/null
    19. 

  19. +++ b/drivers/net/switch/adm6996i.c
    20. 

  20. @@ -0,0 +1,115 @@
    21. 

  21. +/*
    22. 

  22. + * Copyright (C) 2011-2013 Daniel Schwierzeck, daniel.schwierzeck@gmail.com
    23. 

  23. + *
    24. 

  24. + * SPDX-License-Identifier:	GPL-2.0+
    25. 

  25. + */
    26. 

  26. +
    27. 

  27. +#include <common.h>
    28. 

  28. +#include <malloc.h>
    29. 

  29. +#include <switch.h>
    30. 

  30. +#include <miiphy.h>
    31. 

  31. +
    32. 

  32. +#define ADM6996I_CHIPID0	0x1020
    33. 

  33. +#define ADM6996I_CHIPID1	0x0007
    34. 

  34. +#define ADM6996I_PORT_COUNT	6
    35. 

  35. +
    36. 

  36. +#define ADM6996I_REG_P0BC	0x001	/* P0 Basic Control */
    37. 

  37. +#define ADM6996I_REG_P1BC	0x003	/* P1 Basic Control */
    38. 

  38. +#define ADM6996I_REG_P2BC	0x005	/* P2 Basic Control */
    39. 

  39. +#define ADM6996I_REG_P3BC	0x007	/* P3 Basic Control */
    40. 

  40. +#define ADM6996I_REG_P4BC	0x008	/* P4 Basic Control */
    41. 

  41. +#define ADM6996I_REG_P5BC	0x009	/* P5 Basic Control */
    42. 

  42. +
    43. 

  43. +#define ADM6996I_REG_P0EC	0x002	/* P0 Extended Control */
    44. 

  44. +#define ADM6996I_REG_P1EC	0x002	/* P1 Extended Control */
    45. 

  45. +#define ADM6996I_REG_P2EC	0x004	/* P2 Extended Control */
    46. 

  46. +#define ADM6996I_REG_P3EC	0x004	/* P3 Extended Control */
    47. 

  47. +#define ADM6996I_REG_P4EC	0x006	/* P4 Extended Control */
    48. 

  48. +#define ADM6996I_REG_P5EC	0x006	/* P5 Extended Control */
    49. 

  49. +
    50. 

  50. +#define ADM6996I_REG_SC4	0x012	/* System Control 4 */
    51. 

  51. +
    52. 

  52. +#define ADM6996I_REG_CI0	0xA0	/* Chip Identifier 0 */
    53. 

  53. +#define ADM6996I_REG_CI1	0xA1	/* Chip Identifier 1 */
    54. 

  54. +
    55. 

  55. +#define ADM6996I_REG_PXBC_DEFAULT	0x040F
    56. 

  56. +#define ADM6996I_REG_PXBC_CROSS_EE	(1 << 15)
    57. 

  57. +#define ADM6996I_REG_PXBC_PD		(1 << 5)
    58. 

  58. +
    59. 

  59. +#define ADM6996I_REG_SC4_DEFAULT	0x3600
    60. 

  60. +#define ADM6996I_REG_SC4_LED_ENABLE	(1 << 1)
    61. 

  61. +
    62. 

  62. +#define ADM6996I_REG_CI0_PC_MASK	0xFFF0
    63. 

  63. +#define ADM6996I_REG_CI0_VN_MASK	0xF
    64. 

  64. +#define ADM6996I_REG_CI1_PC_MASK	0xF
    65. 

  65. +
    66. 

  66. +
    67. 

  67. +static inline int adm6996i_mii_read(struct mii_dev *bus, u16 reg)
    68. 

  68. +{
    69. 

  69. +	int ret;
    70. 

  70. +
    71. 

  71. +	ret = bus->read(bus, (reg >> 5) & 0x1f, MDIO_DEVAD_NONE, reg & 0x1f);
    72. 

  72. +
    73. 

  73. +	return ret;
    74. 

  74. +}
    75. 

  75. +
    76. 

  76. +static inline int adm6996i_mii_write(struct mii_dev *bus, u16 reg, u16 val)
    77. 

  77. +{
    78. 

  78. +	int ret;
    79. 

  79. +
    80. 

  80. +	ret = bus->write(bus, (reg >> 5) & 0x1f, MDIO_DEVAD_NONE,
    81. 

  81. +		reg & 0x1f, val);
    82. 

  82. +
    83. 

  83. +	return ret;
    84. 

  84. +}
    85. 

  85. +
    86. 

  86. +static int adm6996i_probe(struct switch_device *dev)
    87. 

  87. +{
    88. 

  88. +	struct mii_dev *bus = dev->bus;
    89. 

  89. +	u16 ci0, ci1;
    90. 

  90. +
    91. 

  91. +	ci0 = adm6996i_mii_read(bus, ADM6996I_REG_CI0);
    92. 

  92. +	ci1 = adm6996i_mii_read(bus, ADM6996I_REG_CI1);
    93. 

  93. +
    94. 

  94. +	ci0 &= ADM6996I_REG_CI0_PC_MASK;
    95. 

  95. +	ci1 &= ADM6996I_REG_CI1_PC_MASK;
    96. 

  96. +
    97. 

  97. +	if (ci0 == ADM6996I_CHIPID0 && ci1 == ADM6996I_CHIPID1)
    98. 

  98. +		return 0;
    99. 

  99. +
    100. 

  100. +	return 1;
    101. 

  101. +}
    102. 

  102. +
    103. 

  103. +static void adm6996i_setup(struct switch_device *dev)
    104. 

  104. +{
    105. 

  105. +	struct mii_dev *bus = dev->bus;
    106. 

  106. +	u16 val;
    107. 

  107. +
    108. 

  108. +	/*
    109. 

  109. +	 * Write default values (Port enable, 100 Mbps, Full Duplex,
    110. 

  110. +	 * Auto negotiation, Flow control) and enable crossover auto-detect
    111. 

  111. +	 */
    112. 

  112. +	val = ADM6996I_REG_PXBC_DEFAULT | ADM6996I_REG_PXBC_CROSS_EE;
    113. 

  113. +	adm6996i_mii_write(bus, ADM6996I_REG_P0BC, val);
    114. 

  114. +	adm6996i_mii_write(bus, ADM6996I_REG_P1BC, val);
    115. 

  115. +	adm6996i_mii_write(bus, ADM6996I_REG_P2BC, val);
    116. 

  116. +	adm6996i_mii_write(bus, ADM6996I_REG_P3BC, val);
    117. 

  117. +	adm6996i_mii_write(bus, ADM6996I_REG_P4BC, val);
    118. 

  118. +	adm6996i_mii_write(bus, ADM6996I_REG_P5BC, val);
    119. 

  119. +
    120. 

  120. +	val = ADM6996I_REG_SC4_DEFAULT | ADM6996I_REG_SC4_LED_ENABLE;
    121. 

  121. +	adm6996i_mii_write(bus, ADM6996I_REG_SC4, val);
    122. 

  122. +}
    123. 

  123. +
    124. 

  124. +static struct switch_driver adm6996i_drv = {
    125. 

  125. +	.name = "adm6996i",
    126. 

  126. +};
    127. 

  127. +
    128. 

  128. +void switch_adm6996i_init(void)
    129. 

  129. +{
    130. 

  130. +	/* For archs with manual relocation */
    131. 

  131. +	adm6996i_drv.probe = adm6996i_probe;
    132. 

  132. +	adm6996i_drv.setup = adm6996i_setup;
    133. 

  133. +
    134. 

  134. +	switch_driver_register(&adm6996i_drv);
    135. 

  135. +}
    136. 

  136. --- a/drivers/net/switch/switch.c
    137. 

  137. +++ b/drivers/net/switch/switch.c
    138. 

  138. @@ -20,6 +20,9 @@ void switch_init(void)
    139. 

  139.  #if defined(CONFIG_SWITCH_PSB697X)
    140. 

  140.  	switch_psb697x_init();
    141. 

  141.  #endif
    142. 

  142. +#if defined(CONFIG_SWITCH_ADM6996I)
    143. 

  143. +	switch_adm6996i_init();
    144. 

  144. +#endif
    145. 

  145.  
    146. 

  146.  	board_switch_init();
    147. 

  147.  }
    148. 

  148. --- a/include/switch.h
    149. 

  149. +++ b/include/switch.h
    150. 

  150. @@ -98,6 +98,7 @@ static inline void switch_setup(struct s
    151. 

  151.  
    152. 

  152.  /* Init functions for supported Switch drivers */
    153. 

  153.  extern void switch_psb697x_init(void);
    154. 

  154. +extern void switch_adm6996i_init(void);
    155. 

  155.  
    156. 

  156.  #endif /* __SWITCH_H */
    157. 

  157.  
    158.