[coreboot-gerrit] New patch to review for coreboot: 0a4d44d broadcom/cygnus: Enable DDR auto self-refresh
Patrick Georgi (pgeorgi@google.com)
gerrit at coreboot.org
Tue Apr 21 15:29:15 CEST 2015
Patrick Georgi (pgeorgi at google.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/9930
-gerrit
commit 0a4d44d74b539b637cf9bc7906f0370db728cadd
Author: Icarus Chau <ichau at broadcom.com>
Date: Tue Apr 7 16:09:24 2015 -0700
broadcom/cygnus: Enable DDR auto self-refresh
Enable auto entry and auto exit self-refresh.
Configure entry idle time to 16x long count sequences.
Where a long count sequence is 1024 cycles.
The idle entry configuration is based on 32x of the DLL lock time (512 cycles).
A conservative setting to help minimize self-refresh enter/exit thrashing.
BUG=chrome-os-partner:36456
BRANCH=broadcom-firmware
TEST=When enable configuration CYGNUS_SDRAM_TEST_DDR,
print on console:
sdram initialization is completed.
test ddr start from 0x60000000 to 0x80000000
...
test ddr end: fail=0
Translation table is @ 02004000
Mapping address range [0x00000000:0x00000000) as uncached
Change-Id: Ibad220429fd52ead2933db03bec1a555f9385e53
Signed-off-by: Patrick Georgi <pgeorgi at chromium.org>
Original-Commit-Id: 3768f82ca268fb854f8c4753916518a1efdf887d
Original-Reviewed-on: https://chrome-internal-review.googlesource.com/212125
Original-Reviewed-by: Scott Branden <sbranden at broadcom.com>
Original-Reviewed-by: Daisuke Nojiri <dnojiri at google.com>
Original-Commit-Queue: Daisuke Nojiri <dnojiri at google.com>
Original-Tested-by: Daisuke Nojiri <dnojiri at google.com>
Original-Signed-off-by: Icarus Chau <ichau at broadcom.com>
Original-Change-Id: Icac1e12745d048b32e1804a546f6b49c8b5953c0
Original-Reviewed-on: https://chromium-review.googlesource.com/265862
Original-Reviewed-by: Daisuke Nojiri <dnojiri at chromium.org>
Original-Commit-Queue: Daisuke Nojiri <dnojiri at chromium.org>
Original-Trybot-Ready: Daisuke Nojiri <dnojiri at chromium.org>
Original-Tested-by: Daisuke Nojiri <dnojiri at chromium.org>
---
src/soc/broadcom/cygnus/Kconfig | 8 +++
src/soc/broadcom/cygnus/ddr_init.c | 21 ++++++++
src/soc/broadcom/cygnus/include/soc/config.h | 4 ++
.../broadcom/cygnus/include/soc/halapis/ddr_regs.h | 62 ++++++++++++++++++++++
4 files changed, 95 insertions(+)
diff --git a/src/soc/broadcom/cygnus/Kconfig b/src/soc/broadcom/cygnus/Kconfig
index 821b2dc..b2f0613 100644
--- a/src/soc/broadcom/cygnus/Kconfig
+++ b/src/soc/broadcom/cygnus/Kconfig
@@ -51,6 +51,14 @@ config CYGNUS_DDR800
bool "DDR Speed at 800MHz"
default y
+config CYGNUS_DDR_AUTO_SELF_REFRESH_ENABLE
+ bool "Enable DDR auto self-refresh"
+ default y
+ help
+ Warning: M0 expects that auto self-refresh is enabled. Modify
+ with caution.
+
+
config CYGNUS_SHMOO_REUSE_DDR_32BIT
bool "Indicate if DDR width is 32-bit"
default n
diff --git a/src/soc/broadcom/cygnus/ddr_init.c b/src/soc/broadcom/cygnus/ddr_init.c
index 27a981e..9aac58f 100755
--- a/src/soc/broadcom/cygnus/ddr_init.c
+++ b/src/soc/broadcom/cygnus/ddr_init.c
@@ -1490,6 +1490,27 @@ void ddr_init2(void)
}
}
+#if CONFIG_CYGNUS_DDR_AUTO_SELF_REFRESH_ENABLE
+#if (DDR_AUTO_SELF_REFRESH_IDLE_COUNT > 0) & (DDR_AUTO_SELF_REFRESH_IDLE_COUNT <= 0xff)
+ /* Enable auto self-refresh */
+ reg32_set_bits((unsigned int *)DDR_DENALI_CTL_57,
+ 0x2 << DDR_DENALI_CTL_57__LP_AUTO_EXIT_EN_R |
+ 0x2 << DDR_DENALI_CTL_57__LP_AUTO_ENTRY_EN_R );
+
+ reg32_set_bits((unsigned int *)DDR_DENALI_CTL_58,
+ DDR_AUTO_SELF_REFRESH_IDLE_COUNT << DDR_DENALI_CTL_58__LP_AUTO_SR_IDLE_R);
+#else
+ #error DDR_AUTO_SELF_REFRESH_IDLE_COUNT out of range
+#endif
+#else
+ /* Disable auto-self refresh */
+ reg32_clear_bits((unsigned int *)DDR_DENALI_CTL_57,
+ 0x2 << DDR_DENALI_CTL_57__LP_AUTO_EXIT_EN_R |
+ 0x2 << DDR_DENALI_CTL_57__LP_AUTO_ENTRY_EN_R );
+ reg32_clear_bits((unsigned int *)DDR_DENALI_CTL_58,
+ 0xff << DDR_DENALI_CTL_58__LP_AUTO_SR_IDLE_R );
+#endif
+
/* Start the DDR */
reg32_set_bits((volatile uint32_t *)DDR_DENALI_CTL_00, 0x01);
diff --git a/src/soc/broadcom/cygnus/include/soc/config.h b/src/soc/broadcom/cygnus/include/soc/config.h
index 7511827..0ba09e3 100755
--- a/src/soc/broadcom/cygnus/include/soc/config.h
+++ b/src/soc/broadcom/cygnus/include/soc/config.h
@@ -29,4 +29,8 @@
#else
#define SDI_NUM_ROWS 65536
#endif
+
+/* Idle count (in units of 1024 cycles) before auto entering self-refresh */
+#define DDR_AUTO_SELF_REFRESH_IDLE_COUNT 16
+
#endif /* __SOC_BROADCOM_CYGNUS_CONFIG_H__ */
diff --git a/src/soc/broadcom/cygnus/include/soc/halapis/ddr_regs.h b/src/soc/broadcom/cygnus/include/soc/halapis/ddr_regs.h
index 80cd969..32668d1 100644
--- a/src/soc/broadcom/cygnus/include/soc/halapis/ddr_regs.h
+++ b/src/soc/broadcom/cygnus/include/soc/halapis/ddr_regs.h
@@ -114,6 +114,68 @@
#define DDR_DENALI_CTL_56_DATAMASK 0xffffffff
#define DDR_DENALI_CTL_56_RDWRMASK 0x00000000
#define DDR_DENALI_CTL_56_RESETVALUE 0x0
+#define DDR_DENALI_CTL_57 0x180100e4
+#define DDR_DENALI_CTL_57_BASE 0x0e4
+#define DDR_DENALI_CTL_57__LP_AUTO_EXIT_EN_L 26
+#define DDR_DENALI_CTL_57__LP_AUTO_EXIT_EN_R 24
+#define DDR_DENALI_CTL_57__LP_AUTO_EXIT_EN_WIDTH 3
+#define DDR_DENALI_CTL_57__LP_AUTO_EXIT_EN_RESETVALUE 0x0
+#define DDR_DENALI_CTL_57__LP_AUTO_ENTRY_EN_L 18
+#define DDR_DENALI_CTL_57__LP_AUTO_ENTRY_EN_R 16
+#define DDR_DENALI_CTL_57__LP_AUTO_ENTRY_EN_WIDTH 3
+#define DDR_DENALI_CTL_57__LP_AUTO_ENTRY_EN_RESETVALUE 0x0
+#define DDR_DENALI_CTL_57__LP_ARB_STATE_L 11
+#define DDR_DENALI_CTL_57__LP_ARB_STATE_R 8
+#define DDR_DENALI_CTL_57__LP_ARB_STATE_WIDTH 4
+#define DDR_DENALI_CTL_57__LP_ARB_STATE_RESETVALUE 0x0
+#define DDR_DENALI_CTL_57__LP_STATE_L 5
+#define DDR_DENALI_CTL_57__LP_STATE_R 0
+#define DDR_DENALI_CTL_57__LP_STATE_WIDTH 6
+#define DDR_DENALI_CTL_57__LP_STATE_RESETVALUE 0x20
+#define DDR_DENALI_CTL_57__RESERVED_0_L 31
+#define DDR_DENALI_CTL_57__RESERVED_0_R 27
+#define DDR_DENALI_CTL_57__RESERVED_1_L 23
+#define DDR_DENALI_CTL_57__RESERVED_1_R 19
+#define DDR_DENALI_CTL_57__RESERVED_2_L 15
+#define DDR_DENALI_CTL_57__RESERVED_2_R 12
+#define DDR_DENALI_CTL_57__RESERVED_3_L 7
+#define DDR_DENALI_CTL_57__RESERVED_3_R 6
+#define DDR_DENALI_CTL_57__RESERVED_L 31
+#define DDR_DENALI_CTL_57__RESERVED_R 27
+#define DDR_DENALI_CTL_57_WIDTH 27
+#define DDR_DENALI_CTL_57__WIDTH 27
+#define DDR_DENALI_CTL_57_ALL_L 26
+#define DDR_DENALI_CTL_57_ALL_R 0
+#define DDR_DENALI_CTL_57__ALL_L 26
+#define DDR_DENALI_CTL_57__ALL_R 0
+#define DDR_DENALI_CTL_57_DATAMASK 0x07070f3f
+#define DDR_DENALI_CTL_57_RDWRMASK 0xf8f8f0c0
+#define DDR_DENALI_CTL_57_RESETVALUE 0x20
+#define DDR_DENALI_CTL_58 0x180100e8
+#define DDR_DENALI_CTL_58_BASE 0x0e8
+#define DDR_DENALI_CTL_58__LP_AUTO_SR_IDLE_L 31
+#define DDR_DENALI_CTL_58__LP_AUTO_SR_IDLE_R 24
+#define DDR_DENALI_CTL_58__LP_AUTO_SR_IDLE_WIDTH 8
+#define DDR_DENALI_CTL_58__LP_AUTO_SR_IDLE_RESETVALUE 0x00
+#define DDR_DENALI_CTL_58__LP_AUTO_PD_IDLE_L 19
+#define DDR_DENALI_CTL_58__LP_AUTO_PD_IDLE_R 8
+#define DDR_DENALI_CTL_58__LP_AUTO_PD_IDLE_WIDTH 12
+#define DDR_DENALI_CTL_58__LP_AUTO_PD_IDLE_RESETVALUE 0x000
+#define DDR_DENALI_CTL_58__LP_AUTO_MEM_GATE_EN_L 1
+#define DDR_DENALI_CTL_58__LP_AUTO_MEM_GATE_EN_R 0
+#define DDR_DENALI_CTL_58__LP_AUTO_MEM_GATE_EN_WIDTH 2
+#define DDR_DENALI_CTL_58__LP_AUTO_MEM_GATE_EN_RESETVALUE 0x0
+#define DDR_DENALI_CTL_58__RESERVED_L 23
+#define DDR_DENALI_CTL_58__RESERVED_R 20
+#define DDR_DENALI_CTL_58_WIDTH 32
+#define DDR_DENALI_CTL_58__WIDTH 32
+#define DDR_DENALI_CTL_58_ALL_L 31
+#define DDR_DENALI_CTL_58_ALL_R 0
+#define DDR_DENALI_CTL_58__ALL_L 31
+#define DDR_DENALI_CTL_58__ALL_R 0
+#define DDR_DENALI_CTL_58_DATAMASK 0xff0fff03
+#define DDR_DENALI_CTL_58_RDWRMASK 0x00f000fc
+#define DDR_DENALI_CTL_58_RESETVALUE 0x0
#define DDR_DENALI_CTL_175 0x180102bc
#define DDR_DENALI_CTL_175_BASE 0x2bc
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