diff options
Diffstat (limited to 'meta-openbmc-mods/meta-ast2500/recipes-bsp/u-boot/files/0008-add-sgio-support-for-port80-snoop-post-LEDs.patch')
-rw-r--r-- | meta-openbmc-mods/meta-ast2500/recipes-bsp/u-boot/files/0008-add-sgio-support-for-port80-snoop-post-LEDs.patch | 158 |
1 files changed, 158 insertions, 0 deletions
diff --git a/meta-openbmc-mods/meta-ast2500/recipes-bsp/u-boot/files/0008-add-sgio-support-for-port80-snoop-post-LEDs.patch b/meta-openbmc-mods/meta-ast2500/recipes-bsp/u-boot/files/0008-add-sgio-support-for-port80-snoop-post-LEDs.patch new file mode 100644 index 000000000..950b3247d --- /dev/null +++ b/meta-openbmc-mods/meta-ast2500/recipes-bsp/u-boot/files/0008-add-sgio-support-for-port80-snoop-post-LEDs.patch @@ -0,0 +1,158 @@ +From 248f12a6a02819a5318025df0868dfd40efa2207 Mon Sep 17 00:00:00 2001 +From: Vernon Mauery <vernon.mauery@linux.intel.com> +Date: Wed, 14 Nov 2018 12:09:52 -0800 +Subject: [PATCH] add sgio support for port80 snoop post LEDs + +This ties together the port 80 snooping to the SGPIO output that +ultimately drives the POST code LEDs. + +Signed-off-by: Vernon Mauery <vernon.mauery@linux.intel.com> +Change-Id: Iaa1b91cd40f4b6323dba0598da373cb631459e66 + +--- + arch/arm/include/asm/arch-aspeed/ast_scu.h | 1 + + arch/arm/mach-aspeed/ast-scu.c | 8 ++ + board/aspeed/ast-g5/ast-g5-intel.c | 96 ++++++++++++++++++++++ + 3 files changed, 105 insertions(+) + +diff --git a/arch/arm/include/asm/arch-aspeed/ast_scu.h b/arch/arm/include/asm/arch-aspeed/ast_scu.h +index 06825cebbf..369c4e3b60 100644 +--- a/arch/arm/include/asm/arch-aspeed/ast_scu.h ++++ b/arch/arm/include/asm/arch-aspeed/ast_scu.h +@@ -45,6 +45,7 @@ extern u32 ast_scu_get_vga_memsize(void); + extern void ast_scu_init_eth(u8 num); + extern void ast_scu_multi_func_eth(u8 num); + extern void ast_scu_multi_func_romcs(u8 num); ++extern void ast_scu_multi_func_sgpio(void); + + void ast_config_uart5_clk(void); + +diff --git a/arch/arm/mach-aspeed/ast-scu.c b/arch/arm/mach-aspeed/ast-scu.c +index d27f3d3ede..3a9ba05bf2 100644 +--- a/arch/arm/mach-aspeed/ast-scu.c ++++ b/arch/arm/mach-aspeed/ast-scu.c +@@ -449,6 +449,14 @@ void ast_scu_multi_func_romcs(u8 num) + SCU_FUN_PIN_ROMCS(num), AST_SCU_FUN_PIN_CTRL3); + } + ++void ast_scu_multi_func_sgpio(void) ++{ ++ ast_scu_write(ast_scu_read(AST_SCU_FUN_PIN_CTRL2) | ++ SCU_FUN_PIN_SGPMI | SCU_FUN_PIN_SGPMO | ++ SCU_FUN_PIN_SGPMLD | SCU_FUN_PIN_SGPMCK, ++ AST_SCU_FUN_PIN_CTRL2); ++} ++ + u32 ast_scu_revision_id(void) + { + int i; +diff --git a/board/aspeed/ast-g5/ast-g5-intel.c b/board/aspeed/ast-g5/ast-g5-intel.c +index e79235c8d0..c2a8b33aec 100644 +--- a/board/aspeed/ast-g5/ast-g5-intel.c ++++ b/board/aspeed/ast-g5/ast-g5-intel.c +@@ -8,9 +8,105 @@ + */ + + #include <common.h> ++#include <asm/io.h> ++#include <asm/arch/regs-scu.h> ++#include <asm/arch/ast_scu.h> ++#include <asm/arch/aspeed.h> ++ ++#include "ast-g5.h" ++ ++#define LPC_SNOOP_ADDR 0x80 ++#define HICR5 0x080 /* Host Interface Control Register 5 */ ++#define HICR6 0x084 /* Host Interface Control Register 6 */ ++#define HICR7 0x088 /* Host Interface Control Register 7 */ ++#define HICR8 0x08c /* Host Interface Control Register 8 */ ++#define SNPWADR 0x090 /* LPC Snoop Address Register */ ++#define SNPWDR 0x094 /* LPC Snoop Data Register */ ++#define HICR9 0x098 /* Host Interface Control Register 9 */ ++#define HICRA 0x09c /* Host Interface Control Register A */ ++#define LHCR0 0x0a0 /* LPC Host Control Register 0 */ ++#define LHCR1 0x0a4 /* LPC Host Control Register 1 */ ++#define LHCR2 0x0a8 /* LPC Host Control Register 2 */ ++#define LHCR3 0x0ac /* LPC Host Control Register 3 */ ++#define LHCR4 0x0b0 /* LPC Host Control Register 4 */ ++#define LHCR5 0x0b4 /* LPC Host Control Register 5 */ ++#define LHCR6 0x0b8 /* LPC Host Control Register 6 */ ++#define LHCR7 0x0bc /* LPC Host Control Register 7 */ ++#define LHCR8 0x0c0 /* LPC Host Control Register 8 */ ++#define PCCR6 0x0c4 /* Post Code Control Register 6 */ ++#define LHCRA 0x0c8 /* LPC Host Control Register A */ ++#define LHCRB 0x0cc /* LPC Host Control Register B */ ++#define PCCR4 0x0d0 /* Post Code Control Register 4 */ ++#define PCCR5 0x0d4 /* Post Code Control Register 5 */ ++#define HICRB 0x100 /* Host Interface Control Register B */ ++#define HICRC 0x104 /* Host Interface Control Register C */ ++/* HICR5 Bits */ ++#define HICR5_EN_SIOGIO (1 << 31) /* Enable SIOGIO */ ++#define HICR5_EN80HGIO (1 << 30) /* Enable 80hGIO */ ++#define HICR5_SEL80HGIO (0x1f << 24) /* Select 80hGIO */ ++#define SET_SEL80HGIO(x) ((x & 0x1f) << 24) /* Select 80hGIO Offset */ ++#define HICR5_UNKVAL_MASK 0x1FFF0000 /* Bits with unknown values on reset */ ++#define HICR5_ENINT_SNP0W (1 << 1) /* Enable Snooping address 0 */ ++#define HICR5_EN_SNP0W (1 << 0) /* Enable Snooping address 0 */ ++ ++/* HRCR6 Bits */ ++#define HICR6_STR_SNP0W (1 << 0) /* Interrupt Status Snoop address 0 */ ++#define HICR6_STR_SNP1W (1 << 1) /* Interrupt Status Snoop address 1 */ ++ ++/* HICRB Bits */ ++#define HICRB_EN80HSGIO (1 << 13) /* Enable 80hSGIO */ ++ ++#define SGPIO_CLK_DIV(N) ((N) << 16) ++#define SGPIO_BYTES(N) ((N) << 6) ++#define SGPIO_ENABLE 1 ++#define GPIO254 0x254 ++ ++static void sgpio_init(void) ++{ ++ uint32_t value; ++ /* ++ 33.4.2 ++ LPC port80h direct to SGPIO ++ In AST2500 SGPIO, it supports output data from 80h. It always uses SGPIOA. ++ 1. Configure LPC snoop function. ++ (a) Set SNPWADR(0x1e789090)[15:0] to 0x80. ++ (b) Set HICR5(0x1e789080)[0] to 1 to enable snoop. ++ 2. Configure SGPIO ++ (a) Set GPIO254[9:6] to larger than or equal to 0x1. ++ (b) Set GPIO254[0] to 1 to enable SGPIO. ++ 3. Set SuperIO ++ (a) Set SIOR7 30h to 0x40. ++ */ ++ /* make sure multi-pin stuff goes in our favor */ ++ ast_scu_multi_func_sgpio(); ++ ++ /* set lpc snoop #0 to port 0x80 */ ++ value = readl(AST_LPC_BASE + SNPWADR) & 0xffff0000; ++ writel(value | LPC_SNOOP_ADDR, AST_LPC_BASE + SNPWADR); ++ ++ /* clear interrupt status */ ++ value = readl(AST_LPC_BASE + HICR6); ++ value |= HICR6_STR_SNP0W | HICR6_STR_SNP1W; ++ writel(value, AST_LPC_BASE + HICR6); ++ ++ /* enable lpc snoop #0 and SIOGIO */ ++ value = readl(AST_LPC_BASE + HICR5) & ~(HICR5_UNKVAL_MASK); ++ value |= HICR5_EN_SIOGIO | HICR5_EN_SNP0W; ++ writel(value, AST_LPC_BASE + HICR5); ++ ++ ++ /* enable port80h snoop on SGPIO */ ++ value = readl(AST_LPC_BASE + HICRB) | HICRB_EN80HSGIO; ++ writel(value, AST_LPC_BASE + HICRB); ++ ++ /* set the gpio clock to 2MHz */ ++ value = SGPIO_CLK_DIV(24) | SGPIO_BYTES(10) | SGPIO_ENABLE; ++ writel(value, AST_GPIO_BASE + GPIO254); ++} + + extern void espi_init(void); + void ast_g5_intel(void) + { + espi_init(); ++ sgpio_init(); + } |