diff options
Diffstat (limited to 'meta-openbmc-mods/meta-common/recipes-bsp/u-boot/files/0022-KCS-driver-support-in-uBoot.patch')
| -rw-r--r-- | meta-openbmc-mods/meta-common/recipes-bsp/u-boot/files/0022-KCS-driver-support-in-uBoot.patch | 45 |
1 files changed, 19 insertions, 26 deletions
diff --git a/meta-openbmc-mods/meta-common/recipes-bsp/u-boot/files/0022-KCS-driver-support-in-uBoot.patch b/meta-openbmc-mods/meta-common/recipes-bsp/u-boot/files/0022-KCS-driver-support-in-uBoot.patch index 79028d2a1..c79b2f2dc 100644 --- a/meta-openbmc-mods/meta-common/recipes-bsp/u-boot/files/0022-KCS-driver-support-in-uBoot.patch +++ b/meta-openbmc-mods/meta-common/recipes-bsp/u-boot/files/0022-KCS-driver-support-in-uBoot.patch @@ -1,4 +1,4 @@ -From 16209364c27a0cb7e2b7fdd445942f68e9180263 Mon Sep 17 00:00:00 2001 +From b11377c73c85bdee1975402084c3760b70cc99c4 Mon Sep 17 00:00:00 2001 From: AppaRao Puli <apparao.puli@linux.intel.com> Date: Wed, 13 Mar 2019 14:28:05 +0530 Subject: [PATCH] KCS driver support in uBoot @@ -28,9 +28,9 @@ Signed-off-by: AppaRao Puli <apparao.puli@linux.intel.com> --- board/aspeed/ast-g5/Makefile | 1 + board/aspeed/ast-g5/ast-g5-intel.c | 3 + - board/aspeed/ast-g5/ast-g5-kcs.c | 425 +++++++++++++++++++++++++++++++++++++ - board/aspeed/ast-g5/ast-g5-kcs.h | 114 ++++++++++ - 4 files changed, 543 insertions(+) + board/aspeed/ast-g5/ast-g5-kcs.c | 420 +++++++++++++++++++++++++++++++++++++ + board/aspeed/ast-g5/ast-g5-kcs.h | 112 ++++++++++ + 4 files changed, 536 insertions(+) create mode 100644 board/aspeed/ast-g5/ast-g5-kcs.c create mode 100644 board/aspeed/ast-g5/ast-g5-kcs.h @@ -44,7 +44,7 @@ index 9022433..05972b9 100644 obj-y += ast-g5-timer.o +obj-y += ast-g5-kcs.o diff --git a/board/aspeed/ast-g5/ast-g5-intel.c b/board/aspeed/ast-g5/ast-g5-intel.c -index f810a40..f9955c7 100644 +index 409b1a7..41d41ea 100644 --- a/board/aspeed/ast-g5/ast-g5-intel.c +++ b/board/aspeed/ast-g5/ast-g5-intel.c @@ -437,6 +437,7 @@ static void pwm_init(void) @@ -66,16 +66,15 @@ index f810a40..f9955c7 100644 } diff --git a/board/aspeed/ast-g5/ast-g5-kcs.c b/board/aspeed/ast-g5/ast-g5-kcs.c new file mode 100644 -index 0000000..f983b4a +index 0000000..7bff26f --- /dev/null +++ b/board/aspeed/ast-g5/ast-g5-kcs.c -@@ -0,0 +1,425 @@ +@@ -0,0 +1,420 @@ +// SPDX-License-Identifier: GPL-2.0 +// Copyright (c) 2018-2019 Intel Corporation + +#include "ast-g5-kcs.h" + -+#define DEBUG_KCS_ENABLED 0 +#ifdef DEBUG_KCS_ENABLED +#define DBG_KCS printf +#else @@ -139,7 +138,7 @@ index 0000000..f983b4a + } + + /* very unlike code hits here. */ -+ printf("ERROR: %s error. ChannelNo: %d\n", __func__, channel_num); ++ DBG_KCS("ERROR: %s error. ChannelNo: %d\n", __func__, channel_num); + BUG(); +} + @@ -148,7 +147,7 @@ index 0000000..f983b4a + struct kcs_packet *kcs_pkt = NULL; + + kcs_pkt = get_kcs_packet(channel_num); -+ printf("ERROR: KCS communication aborted (Channel:%d, Error:%d)\n", ++ DBG_KCS("ERROR: KCS communication aborted (Channel:%d, Error:%d)\n", + channel_num, kcs_pkt->error); + set_kcs_state(channel_num, KCS_STATE_ERROR); + read_data(channel_num); @@ -176,6 +175,7 @@ index 0000000..f983b4a +static void process_kcs_request(u16 channel_num) +{ + struct kcs_packet *kcs_pkt = NULL; ++ int i; + + kcs_pkt = get_kcs_packet(channel_num); + if (!kcs_pkt->read_req_done) @@ -184,8 +184,6 @@ index 0000000..f983b4a + DBG_KCS("%s:- chan:%d\n", __func__, channel_num); + +#ifdef DEBUG_KCS_ENABLED -+ int i; -+ + DBG_KCS("Request data(Len:%d): ", kcs_pkt->data_in_idx); + for (i = 0; i < kcs_pkt->data_in_idx; i++) + DBG_KCS(" 0x%02x", kcs_pkt->data_in[i]); @@ -240,8 +238,6 @@ index 0000000..f983b4a + struct kcs_packet *kcs_pkt = NULL; + + kcs_pkt = get_kcs_packet(channel_num); -+ DBG_KCS("%s:- chan:%d, kcs_pkt->phase:%d\n", __func__, channel_num, -+ kcs_pkt->phase); + + switch (kcs_pkt->phase) { + case KCS_PHASE_WRITE_START: @@ -326,7 +322,6 @@ index 0000000..f983b4a + write_data(channel_num, ZERO_DATA); + + u16 cmd = read_data(channel_num); -+ DBG_KCS("%s:- chan:%d, cmd:0x%02x\n", __func__, channel_num, cmd); + switch (cmd) { + case KCS_CTRL_CODE_WRITE_START: + init_kcs_packet(channel_num); @@ -497,10 +492,10 @@ index 0000000..f983b4a +} diff --git a/board/aspeed/ast-g5/ast-g5-kcs.h b/board/aspeed/ast-g5/ast-g5-kcs.h new file mode 100644 -index 0000000..52b5097 +index 0000000..bb697c4 --- /dev/null +++ b/board/aspeed/ast-g5/ast-g5-kcs.h -@@ -0,0 +1,114 @@ +@@ -0,0 +1,112 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Copyright (c) 2018-2019 Intel Corporation */ + @@ -515,8 +510,8 @@ index 0000000..52b5097 +/* KCS channel addresses */ +#define KCS_CHANNEL1_ADDR 0xCA0 +#define KCS_CHANNEL2_ADDR 0xCA8 -+#define KCS_CHANNEL3_ADDR 0xCA2 -+#define KCS_CHANNEL4_ADDR 0xCB2 ++#define KCS_CHANNEL3_ADDR 0xCA2 /* KCS SMS */ ++#define KCS_CHANNEL4_ADDR 0xCA4 /* KCS SMM */ + +#define ZERO_DATA 0x00 + @@ -539,6 +534,11 @@ index 0000000..52b5097 +#define LPC_STR1 0x3C /* Status Register 1 */ +#define LPC_STR2 0x40 /* Status Register 2 */ +#define LPC_STR3 0x44 /* Status Register 3 */ ++#define LPC_HICRB 0x100 /* Host Interface Control Register B */ ++#define LPC_LADR4 0x110 /* LPC channel #4 Address Register */ ++#define LPC_IDR4 0x114 /* Input Data Register 4 */ ++#define LPC_ODR4 0x118 /* Output Data Register 4 */ ++#define LPC_STR4 0x11C /* Status Data Register 4 */ + +/* LPC Bits */ +#define BIT_LADR12AS BIT(7) /* Channel Address selection */ @@ -549,15 +549,8 @@ index 0000000..52b5097 +#define BIT_LPC2E BIT(6) /* Enable LPC channel #2 */ +#define BIT_LPC3E BIT(7) /* Enable LPC channel #2 */ +#define BIT_KCSENBL BIT(2) /* Enable KCS interface in Channel #3 */ -+ -+/* mapped to lpc-host@80 IO space */ -+#define LPC_HICRB 0x080 +#define BIT_IBFIE4 BIT(1) +#define BIT_LPC4E BIT(0) -+#define LPC_LADR4 0x090 -+#define LPC_IDR4 0x094 /* Input Data Register 4 */ -+#define LPC_ODR4 0x098 /* Output Data Register 4 */ -+#define LPC_STR4 0x09c /* Status Data Register 4 */ + +#define BIT_STATUS_OBF BIT(0) /* Output Data Register full #1/#2/#3 */ +#define BIT_STATUS_IBF BIT(1) /* Input Data Register full #1/#2/#3 */ |